CN113692189B

CN113692189B - Machine room air conditioner, control method and device thereof, and storage medium

Info

Publication number: CN113692189B
Application number: CN202110949602.1A
Authority: CN
Inventors: 刘帅; 赖桃辉; 栾坤鹏; 余裔麟; 王芳; 张瀛龙
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-08-16
Anticipated expiration: 2041-08-18
Also published as: CN113692189A

Abstract

The invention discloses a control method and a control device for a machine room air conditioner, the machine room air conditioner, a storage medium and a processor, wherein the method comprises the following steps: under the condition that the machine room air conditioner is just started after being electrified, controlling a compressor system and a fresh air system of the machine room air conditioner to operate; after controlling a compressor system and a fresh air system of the machine room air conditioner to operate for a first set time, detecting the outdoor temperature of the machine room air conditioner for a second set time to obtain the outdoor temperature of the machine room air conditioner; and adjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner so as to control the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner. According to the scheme, the machine room air conditioner is controlled to execute different refrigeration modes through different outdoor temperatures, so that the energy consumption of the machine room air conditioner can be reduced, and the service life of equipment can be prolonged.

Description

Machine room air conditioner, control method and device thereof, and storage medium

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to a control method and device of a machine room air conditioner, the machine room air conditioner, a storage medium and a processor, in particular to an intelligent control method and device of a double-temperature-zone machine room air conditioner, the storage medium and the processor.

Background

With the rapid development of the communication industry in China, the demand of the air conditioner of the electronic machine room is gradually increased, so that the problems of energy consumption, equipment service life and the like of the air conditioner of the machine room are gradually emphasized. The optimal operation temperature areas of different devices in the machine room are different, and if all the devices are in the same temperature area, the service life of the devices is shortened, so that the problems of reducing the energy consumption of air conditioners in the machine room, reducing the operation cost of air conditioning systems in the machine room and prolonging the service life of the devices are very important.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention aims to provide a control method and device of a machine room air conditioner, the machine room air conditioner, a storage medium and a processor, which are used for solving the problems of high energy consumption and short service life of equipment of the machine room air conditioner, achieving the effects of controlling the machine room air conditioner to execute different refrigeration modes through different outdoor temperatures, reducing the energy consumption of the machine room air conditioner and prolonging the service life of the equipment.

The invention provides a control method of a machine room air conditioner, which comprises the following steps: the system comprises a compressor system, a fresh air system and an air return system; the control method of the machine room air conditioner comprises the following steps: under the condition that the machine room air conditioner is just started after being electrified, controlling a compressor system and a fresh air system of the machine room air conditioner to operate; after controlling a compressor system and a fresh air system of the machine room air conditioner to operate for a first set time, detecting the outdoor temperature of the machine room air conditioner for a second set time to obtain the outdoor temperature of the machine room air conditioner; and adjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner so as to control the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner.

In some embodiments, the refrigeration system of the air conditioner of the machine room comprises at least one of: the system comprises a compression refrigeration system for refrigerating by independently utilizing a compressor system of the machine room air conditioner, a fresh air refrigeration system for refrigerating by independently utilizing a fresh air system of the machine room air conditioner, a first composite refrigeration system for performing first refrigeration by combining the compressor system and the fresh air system of the machine room air conditioner, and a second composite refrigeration system for performing second composite refrigeration by combining the fresh air system and the air return system of the machine room air conditioner; the operation mode of the machine room air conditioner comprises at least one of the following modes: the first operation mode of the compression refrigeration system, the second operation mode of the first operation of the first composite refrigeration system, the third operation mode of the second operation of the first composite refrigeration system, the fourth operation mode of the third operation of the first composite refrigeration system, the fifth operation mode of the fresh air refrigeration system and the sixth operation mode of the second composite refrigeration system are adopted; in the first operation mode, the compression refrigeration system cools the machine room and a storage battery cabinet in the machine room; in the second operation mode, part of cold energy of the compression refrigeration system and mixed air of the fresh air system cool the machine room, and the compression refrigeration system cools a storage battery cabinet in the machine room; in the third operation mode, the fresh air system cools the machine room, and the compression refrigeration system cools a storage battery cabinet in the machine room; in the fourth operation mode, part of cold energy of the fresh air system is mixed with cold air of the compression refrigeration system to cool a storage battery cabinet in the machine room; in the fifth operation mode, the fresh air system cools the machine room and a storage battery cabinet in the machine room; and in the sixth operation mode, the mixed air of the fresh air system and the return air system cools the machine room and the storage battery cabinet in the machine room.

In some embodiments, controlling the operation of the compressor system and the fresh air system of the machine room air conditioner comprises: and controlling the first composite refrigeration system of the machine room air conditioner to operate according to the third operation mode.

In some embodiments, adjusting the operation mode of the room air conditioner according to the outdoor temperature of the room air conditioner includes: if the outdoor temperature of the machine room air conditioner is greater than or equal to a first set temperature, controlling the machine room air conditioner to operate according to the first operation mode; if the outdoor temperature of the machine room air conditioner is lower than a first set temperature and is higher than or equal to a second set temperature, controlling the machine room air conditioner to operate according to the second operation mode; if the outdoor temperature of the machine room air conditioner is lower than a second set temperature and is higher than or equal to a third set temperature, controlling the machine room air conditioner to operate according to a third operation mode; if the outdoor temperature of the machine room air conditioner is lower than a third set temperature and is higher than or equal to a fourth set temperature, controlling the machine room air conditioner to operate according to a fourth operation mode; if the outdoor temperature of the machine room air conditioner is lower than a fourth set temperature and is higher than or equal to a fifth set temperature, controlling the machine room air conditioner to operate according to a fifth operation mode; and if the outdoor temperature of the machine room air conditioner is lower than a fifth set temperature, controlling the machine room air conditioner to operate according to the sixth operation mode.

In some embodiments, further comprising: after the operation mode of the machine room air conditioner is adjusted, after every other first set time, the outdoor temperature of the machine room air conditioner is detected for the second set time so as to obtain the outdoor temperature of the machine room air conditioner again; and readjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner so as to control the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner.

In some embodiments, further comprising: determining whether a compressor in a compressor system of the machine room air conditioner stops operating after adjusting an operation mode of the machine room air conditioner; if the compressor stops running, controlling the machine room air conditioner to run under the condition of starting immediately after power-on under the condition that the running stopping time of the compressor is greater than or equal to a third set time; under the condition that the stop operation time of the compressor is less than the third set time, controlling the machine room air conditioner to operate according to the operation mode when the compressor is stopped last time; and if the compressor does not stop running, controlling the machine room air conditioner to continue running according to the current running state.

In another aspect, the present invention provides a control device for a machine room air conditioner, where the control device includes: the system comprises a compressor system, a fresh air system and an air return system; the control device of the machine room air conditioner comprises: the control unit is configured to control the compressor system and the fresh air system of the machine room air conditioner to operate under the condition that the machine room air conditioner is just started after being electrified; the air conditioner control device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is configured to detect the outdoor temperature of the machine room air conditioner for a second set time after controlling a compressor system and a fresh air system of the machine room air conditioner to operate for a first set time so as to acquire the outdoor temperature of the machine room air conditioner; the control unit is further configured to adjust the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, so that the machine room air conditioner controls the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching mode according to the outdoor temperature of the machine room air conditioner.

In some embodiments, the refrigeration system of the air conditioner in the machine room comprises at least one of the following: the system comprises a compression refrigeration system for refrigerating by independently utilizing a compressor system of the machine room air conditioner, a fresh air refrigeration system for refrigerating by independently utilizing a fresh air system of the machine room air conditioner, a first composite refrigeration system for performing first refrigeration by combining the compressor system and the fresh air system of the machine room air conditioner, and a second composite refrigeration system for performing second composite refrigeration by combining the fresh air system and the air return system of the machine room air conditioner; the operation mode of the machine room air conditioner comprises at least one of the following modes: the first operation mode of the compression refrigeration system, the second operation mode of the first operation of the first composite refrigeration system, the third operation mode of the second operation of the first composite refrigeration system, the fourth operation mode of the third operation of the first composite refrigeration system, the fifth operation mode of the fresh air refrigeration system and the sixth operation mode of the second composite refrigeration system are carried out; in the first operation mode, the compression refrigeration system cools the machine room and a storage battery cabinet in the machine room; in the second operation mode, part of cold energy of the compression refrigeration system and mixed air of the fresh air system cool the machine room, and the compression refrigeration system cools a storage battery cabinet in the machine room; in the third operation mode, the fresh air system cools the machine room, and the compression refrigeration system cools a storage battery cabinet in the machine room; in the fourth operation mode, part of cold energy of the fresh air system is mixed with cold air of the compression refrigeration system to cool a storage battery cabinet in the machine room; in the fifth operation mode, the fresh air system cools the machine room and a storage battery cabinet in the machine room; and in the sixth operation mode, the mixed air of the fresh air system and the return air system cools the machine room and the storage battery cabinet in the machine room.

In some embodiments, the control unit, which controls the operation of the compressor system and the fresh air system of the air conditioner in the machine room, includes: and controlling the first composite refrigeration system of the machine room air conditioner to operate according to the third operation mode.

In some embodiments, the control unit adjusting the operation mode of the room air conditioner according to an outdoor temperature of the room air conditioner includes: if the outdoor temperature of the machine room air conditioner is greater than or equal to a first set temperature, controlling the machine room air conditioner to operate according to the first operation mode; if the outdoor temperature of the machine room air conditioner is lower than a first set temperature and is higher than or equal to a second set temperature, controlling the machine room air conditioner to operate according to the second operation mode; if the outdoor temperature of the machine room air conditioner is lower than a second set temperature and is higher than or equal to a third set temperature, controlling the machine room air conditioner to operate according to a third operation mode; if the outdoor temperature of the machine room air conditioner is lower than a third set temperature and is higher than or equal to a fourth set temperature, controlling the machine room air conditioner to operate according to a fourth operation mode; if the outdoor temperature of the machine room air conditioner is lower than a fourth set temperature and is higher than or equal to a fifth set temperature, controlling the machine room air conditioner to operate according to a fifth operation mode; and if the outdoor temperature of the machine room air conditioner is lower than a fifth set temperature, controlling the machine room air conditioner to operate according to the sixth operation mode.

In some embodiments, further comprising: the control unit is further configured to detect the outdoor temperature of the machine room air conditioner for a second set time after every first set time after the operation mode of the machine room air conditioner is adjusted, so as to obtain the outdoor temperature of the machine room air conditioner again; the control unit is further configured to readjust the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, so that the machine room air conditioner controls the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner.

In some embodiments, further comprising: the control unit is further configured to determine whether a compressor in a compressor system of the machine room air conditioner stops operating after adjusting the operation mode of the machine room air conditioner; the control unit is further configured to control the machine room air conditioner to operate under the condition of being started immediately after being powered on under the condition that the operation stopping time of the compressor is greater than or equal to a third set time if the compressor stops operating; under the condition that the stop operation time of the compressor is less than the third set time, controlling the machine room air conditioner to operate according to the operation mode when the compressor is stopped last time; the control unit is further configured to control the machine room air conditioner to continue to operate according to the current operation state if the compressor does not stop operating.

In accordance with another aspect of the present invention, there is provided a machine room air conditioner including: the control device of the machine room air conditioner is described above.

In accordance with the above method, a further aspect of the present invention provides a storage medium, where the storage medium includes a stored program, and when the program runs, the apparatus where the storage medium is located is controlled to execute the control method of the air conditioner in the machine room.

In accordance with the above method, a further aspect of the present invention provides a processor for running a program, wherein the program runs to execute the above control method for the air conditioner in the machine room.

Therefore, according to the scheme of the invention, the temperature zone of the machine room air conditioner is determined according to the outdoor temperature of the machine room air conditioner, the proper refrigeration mode is selected according to the corresponding relation between different temperature zones and different refrigeration modes, and the selected refrigeration mode is adjusted at regular time, so that the outdoor fresh air refrigeration mode is utilized to the maximum extent aiming at different conditions, and the running time of the compression refrigeration mode and the output power of the compressor are reduced; therefore, the machine room air conditioner is controlled to execute different refrigeration modes through different outdoor temperatures, the energy consumption of the machine room air conditioner can be reduced, and the service life of equipment can be prolonged.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

Fig. 1 is a schematic flow chart illustrating a control method of a room air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart illustrating an embodiment of the method for periodically adjusting the operation mode of the air conditioner in the machine room according to the present invention;

FIG. 3 is a schematic flow chart illustrating an embodiment of adjusting the operation mode of the air conditioner in the machine room according to the operation condition of the compressor in the method of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of a control device of a machine room air conditioner according to the present invention;

FIG. 5 is a schematic overall layout diagram of an embodiment of a dual-temperature-zone integrated machine room air conditioning system;

FIG. 6 is a schematic flow chart illustrating an embodiment of a method for controlling the temperature of an air conditioning system of a dual-temperature-zone machine room;

fig. 7 is a flowchart illustrating a temperature control method of a dual-temperature-zone room air conditioning system according to another embodiment.

The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:

102-a control unit; 104-acquisition unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the relevant scheme, the control form of the machine room air conditioner also has an intelligent heat exchange and compression refrigeration mode, an intelligent ventilation system and compression refrigeration mode, a heat pipe energy-saving technology and an intelligent heat exchange and air conditioner battery cabinet, but the above modes have the following problems, namely higher energy consumption, low utilization rate of outdoor fresh air and cold energy, uncontrollable humidity and cleanliness, small temperature difference of large air volume and unfavorable control of the control system of the whole machine room air conditioner.

According to an embodiment of the present invention, a method for controlling a machine room air conditioner is provided, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The machine room air conditioner comprises: compressor system, new trend system and return air system.

In some embodiments, the refrigeration system of the air conditioner of the machine room comprises at least one of: the air conditioner refrigeration system comprises a compression refrigeration system which independently utilizes a compressor system of the machine room air conditioner to refrigerate, a fresh air refrigeration system which independently utilizes a fresh air system of the machine room air conditioner to refrigerate, a first composite refrigeration system which combines the compressor system and the fresh air system of the machine room air conditioner to refrigerate, and a second composite refrigeration system which combines the fresh air system and the air return system of the machine room air conditioner to refrigerate in a second composite mode.

Fig. 5 is a schematic overall layout diagram of an embodiment of the dual-temperature-zone integrated machine room air conditioning system. As shown in fig. 5, the dual-temperature-zone integrated air conditioning system for the machine room mainly includes: compression refrigeration system, new trend refrigeration system, compound refrigeration system, control system, battery cabinet, computer lab. The composite refrigeration refers to a plurality of conditions of a fresh air refrigeration system and a compression refrigeration system and a fresh air and return air refrigeration system. At the air inlet of the machine room, a compressor, an evaporator, a condenser and a capillary tube are arranged. A first air feeder is arranged at an air outlet of a fresh air pipeline of the machine room. A first air valve and a first induced draft fan are arranged at an air return opening of a fresh air pipeline of the machine room. And a second air valve and a second induced draft fan are also arranged on a fresh air pipeline of the air conditioner of the machine room. In the machine room, a humidifier is also arranged. An electric air valve such as a first valve and a second valve is arranged between the humidifier and the fresh air pipeline. A filter screen is arranged at an outdoor fresh air inlet between the outdoor side and the indoor side of the machine room. And a gas balance hole and a second air feeder are arranged at the storage battery cabinet in the machine room.

When the compressor operates in a compression refrigeration mode, the refrigerant passes through the compressor → the condenser → the capillary → the evaporator, indoor hot air enters from the air inlet, is subjected to heat exchange by the evaporator and then is changed into cold air, and finally enters the indoor side or the storage battery cabinet. When the fresh air refrigerating system operates, outdoor cold air passes through the filter screen and the electric air valve from the outdoor fresh air inlet and finally enters the indoor side or the storage battery cabinet.

The operation mode of the machine room air conditioner comprises at least one of the following modes: the refrigeration system comprises a compression refrigeration system, a first compound refrigeration system, a second compound refrigeration system, a third compound refrigeration system, a fourth compound refrigeration system, a fifth fresh air refrigeration system and a sixth compound refrigeration system, wherein the first compound refrigeration system operates in a first operation mode, the first compound refrigeration system operates in a second operation mode, the first compound refrigeration system operates in a third operation mode, the first compound refrigeration system operates in a fourth operation mode, the second compound refrigeration system operates in a fifth operation mode, and the second compound refrigeration system operates in a sixth operation mode.

In the first operation mode, the compression refrigeration system cools the machine room and a storage battery cabinet in the machine room; in the second operation mode, part of cold energy of the compression refrigeration system and mixed air of the fresh air system cool the machine room, and the compression refrigeration system cools a storage battery cabinet in the machine room; in the third operation mode, the fresh air system cools the machine room, and the compression refrigeration system cools a storage battery cabinet in the machine room; in the fourth operation mode, part of cold energy of the fresh air system is mixed with cold air of the compression refrigeration system to cool a storage battery cabinet in the machine room; in the fifth operation mode, the fresh air system cools the machine room and a storage battery cabinet in the machine room; and in the sixth operation mode, the mixed air of the fresh air system and the return air system cools the machine room and the storage battery cabinet in the machine room.

According to the control method of the scheme, the outdoor temperature is divided into 6 temperature zones, the 6 operation modes correspond to 6 operation modes, and the first operation mode is a compression refrigeration mode, the second operation mode is a compression + fresh air refrigeration mode A, the third operation mode is a compression + fresh air refrigeration mode B, the fourth operation mode is a compression + fresh air refrigeration mode C, the fifth operation mode is a fresh air refrigeration mode, and the sixth operation mode is a fresh air + return air refrigeration mode.

Wherein, the process of the reduction of outdoor temperature is corresponded to 6 kinds of modes, respectively:

case of operating the first operation mode: when the outdoor temperature does not meet the temperature requirement in the machine room, the first operation mode is operated, such as the compression refrigeration mode, to independently operate, and the storage battery cabinet and the machine room are cooled.

Case of operating the second operation mode: when the outdoor temperature is slightly higher than the temperature required by the machine room, the second operation mode is operated, if the second operation mode is a compression and fresh air refrigeration mode A, the refrigeration system provides part of cold energy for the fresh air system, so that the mixed air meets the temperature requirement of the machine room, and the compression refrigeration system cools the storage battery cabinet.

Case of operating the third operation mode: when the outdoor temperature meets the temperature requirement of the machine room, a third operation mode is operated, such as a compression and fresh air refrigeration mode B, the fresh air system independently supplies cold for the machine room, and the refrigeration system independently supplies cold for the storage battery cabinet.

Case of operating the fourth operation mode: when the outdoor temperature is slightly higher than the required temperature of the storage battery cabinet, if the fourth operation mode is operated, such as a compression and fresh air refrigeration mode C, the fresh air system supplies cold for the machine room independently, and provides part of cold energy to be mixed with cold air of the compression refrigeration system, so that the temperature of the storage battery cabinet is met, and the temperature of the storage battery cabinet is reduced.

Case of operating the fifth operation mode: when the outdoor temperature meets the temperature of the storage battery cabinet, a fifth operation mode is operated, such as a fresh air refrigeration mode, namely, a fresh air system independently operates, and the temperature of the machine room and the storage battery cabinet is reduced.

Case of operating the sixth operating mode: when the outdoor temperature is too low, a sixth operation mode is operated, such as a fresh air and return air refrigeration mode, namely, the sixth operation mode is mixed with hot air in the machine room, so that the temperature of the sixth operation mode meets the temperature of the storage battery cabinet, and the mixed air cools the machine room and the storage battery cabinet.

The control method of the machine room air conditioner comprises the following steps: step S110 to step S130.

In step S110, the compressor system and the fresh air system of the machine room air conditioner are controlled to operate when the machine room air conditioner is turned on immediately after being powered on.

In some embodiments, the controlling the operation of the compressor system and the fresh air system of the air conditioner in the machine room in step S110 includes: and controlling the first composite refrigeration system of the machine room air conditioner to operate according to the third operation mode.

Fig. 6 is a flowchart illustrating an embodiment of a temperature control method for an air conditioning system of a dual-temperature-zone machine room. As shown in fig. 6, the method for controlling the temperature of the air conditioning system of the dual-temperature-zone machine room includes:

and 11, when the air conditioning system of the double-temperature-zone machine room is started, operating a fourth operation mode such as a compression and fresh air refrigeration mode C, wherein the compressor operates at the minimum power in the fourth operation mode, and the energy consumption of the system is reduced.

At step S120, after controlling the compressor system and the fresh air system of the machine room air conditioner to operate for a first set time, detecting an outdoor temperature of the machine room air conditioner for a second set time to obtain the outdoor temperature of the machine room air conditioner.

In step S130, the operation mode of the air conditioner in the machine room is adjusted according to the outdoor temperature of the air conditioner in the machine room, so that the air conditioner in the machine room controls the compressor system, the fresh air system, and the air return system of the air conditioner in the machine room to operate in a switched manner according to the outdoor temperature of the air conditioner in the machine room.

The scheme of the invention provides an intelligent control method for an air conditioner of a double-temperature-zone machine room, which comprises the steps of intelligently judging a temperature zone to be treated according to outdoor temperature T to execute a corresponding mode, detecting the outdoor temperature T once every other first set time T1 minutes, judging the temperature zone to be treated by the outdoor temperature T, and adjusting an operation mode in time. The outdoor fresh air refrigeration mode is utilized to the maximum extent in different situations, the running time of the compression refrigeration mode and the output power of the compressor are reduced, the effects of independent intelligent control and energy saving of the dual-temperature-zone system are achieved, the running cost of the machine room air conditioning system is reduced, and the service life of equipment is prolonged.

In some embodiments, in step S130, the operation mode of the air conditioner in the machine room is adjusted according to the outdoor temperature of the air conditioner in the machine room, and the adjustment condition includes any one of the following adjustment conditions:

the first regulation case: and if the outdoor temperature of the machine room air conditioner is greater than or equal to a first set temperature, controlling the machine room air conditioner to operate according to the first operation mode.

The second regulation case: and if the outdoor temperature of the machine room air conditioner is less than a first set temperature and greater than or equal to a second set temperature, controlling the machine room air conditioner to operate according to the second operation mode.

The third regulation case: and if the outdoor temperature of the machine room air conditioner is less than the second set temperature and greater than or equal to a third set temperature, controlling the machine room air conditioner to operate according to the third operation mode.

A fourth regulation scenario: and if the outdoor temperature of the machine room air conditioner is less than a third set temperature and greater than or equal to a fourth set temperature, controlling the machine room air conditioner to operate according to a fourth operation mode.

Fifth adjustment scenario: and if the outdoor temperature of the machine room air conditioner is less than a fourth set temperature and greater than or equal to a fifth set temperature, controlling the machine room air conditioner to operate according to the fifth operation mode.

A sixth adjustment scenario: and if the outdoor temperature of the machine room air conditioner is lower than a fifth set temperature, controlling the machine room air conditioner to operate according to the sixth operation mode.

In six operation modes of the machine room air conditioner, the power of the compression refrigeration system is gradually reduced until the machine room air conditioner stops operating, and the energy-saving effect is obvious. The first temperature zone, the second temperature zone, the third temperature zone, the fourth temperature zone, the fifth temperature zone and the sixth temperature zone respectively correspond to an outdoor temperature T which is more than or equal to a first set temperature Ta, a first set temperature Ta which is more than an outdoor temperature T which is more than or equal to a second set temperature Tb, a second set temperature Tb which is more than an outdoor temperature T which is more than or equal to a third set temperature Tc, a third set temperature Tc which is more than an outdoor temperature T which is more than or equal to a fourth set temperature Td, a fourth set temperature Td which is more than an outdoor temperature T which is more than or equal to a fifth set temperature Te, and a fifth set temperature Te which is more than an outdoor temperature T. Exemplary parameter ranges of the first set temperature Ta, the second set temperature Tb, the third set temperature Tc, the fourth set temperature Td, and the fifth set temperature Te are 40 to 35 ℃, 35 to 30 ℃, 30 to 25 ℃, 25 to 20 ℃, and 20 ℃ or lower, respectively.

For the switching modes of the various operation modes and the control of the wind flow direction, the following exemplary descriptions can be found:

the first control case: and when the outdoor temperature T is in the first temperature zone, a first operation mode such as a compression refrigeration mode is carried out:

indoor hot air → evaporator of machine room is divided into two paths: hot air in the machine room → the evaporator → the second induced draft fan → the second air valve → the first blower → cold air in the machine room, and hot air in the machine room → the evaporator → the second blower → cold air in the battery cabinet.

The second control case: and when the outdoor temperature T is in a second temperature zone, performing a second operation mode such as a compression and fresh air refrigeration mode A: indoor hot air → evaporator of machine room is divided into two paths: room hot air → evaporator → second blower → storage battery cabinet cold air, and room hot air → evaporator → second induced draft fan → second air valve. In the second path, the second induced draft fan → the air output by the second air valve, the outdoor hot air → the air output by the electric air valve, form mixed air, and then the mixed air → the first air blower → the indoor cold air of the machine room.

The third control case: and when the outdoor temperature T is in a third temperature zone, performing a third operation mode such as a compression and fresh air refrigeration mode B: room cooling air → evaporator → second blower → storage battery compartment cooling air, and, outdoor cooling air → electric air valve → first blower → room cooling air.

Fourth control case: and when the outdoor temperature T is in a fourth temperature zone, performing a fourth operation mode such as a compression and fresh air refrigeration mode C: outdoor cold air → behind the electric air valve, two paths are divided: outdoor cool air → electric air valve → first blower → indoor cool air in the machine room, and outdoor cool air → electric air valve → second induced draft fan. In the second path, the second air valve → the air output by the second induced draft fan, the hot air in the machine room → the air output by the evaporator form mixed air, and then the mixed air → the second blower → the cold air of the storage battery cabinet.

Fifth control case: and when the outdoor temperature T is in a fifth temperature zone, performing a fifth operation mode such as a fresh air refrigeration mode: after the outdoor cold air → electric air valve, the air valve is divided into two paths: outdoor cool air → electric air valve → first air blower → indoor cool air for the machine room, and, outdoor cool air → electric air valve → second air blower → storage battery cabinet cool air.

Sixth control case: and when the outdoor temperature T is in a sixth temperature zone, a sixth operation mode is carried out, such as a fresh air and return air refrigeration mode: the indoor hot air → the air output by the first air valve, and the outdoor cold air → the air output by the electric air valve form mixed air. Then, the mixed air is divided into two paths: mixed air → the first blower → cool air in the machine room, and mixed air → the second air valve → the second induced draft fan → the second blower → cool air in the battery case.

Fig. 7 is a flowchart illustrating a temperature control method of a dual-temperature-zone room air conditioning system according to another embodiment. As shown in fig. 7, the method for controlling the temperature of the air conditioning system of the dual-temperature-zone machine room includes:

and step 21, detecting the outdoor temperature T.

And step 22, if the outdoor temperature T is greater than or equal to the first set temperature Ta, executing a first operation mode such as a compression refrigeration mode to independently operate, and cooling the storage battery cabinet and the machine room.

If the first set temperature Ta is greater than the outdoor temperature T and is not less than the second set temperature Tb, executing a second operation mode such as a compression and fresh air refrigeration mode A, wherein the refrigeration system provides part of cold energy for the fresh air system at the moment, so that the mixed air meets the temperature requirement of the machine room, and the compression refrigeration system cools the storage battery cabinet.

If the second set temperature Tb is larger than the outdoor temperature T and is larger than or equal to the third set temperature Tc, a third operation mode such as a compression and fresh air refrigeration mode B is executed, the fresh air system independently supplies cold to the machine room, and the refrigeration system independently supplies cold to the storage battery cabinet.

And if the third set temperature Tc is more than the outdoor temperature T and is more than or equal to the fourth set temperature Td, executing a fourth operation mode such as a compression and fresh air refrigeration mode C, independently supplying cold for the machine room by the fresh air system, providing a part of cold energy to be mixed with cold air of the compression refrigeration system, so that the cold air meets the temperature of the storage battery cabinet, and cooling the storage battery cabinet.

And if the fourth set temperature Td is greater than the outdoor temperature T and is not less than the fifth set temperature Te, executing a fifth operation mode such as a fresh air refrigeration mode, namely independently operating the fresh air system, and cooling the machine room and the storage battery cabinet.

If the fifth set temperature Te is larger than the outdoor temperature T, a sixth operation mode such as a fresh air and return air refrigeration mode is operated, namely, the fresh air and the return air are mixed with hot air in the machine room, so that the temperature of the hot air meets the temperature of the storage battery cabinet, and the mixed air cools the machine room and the storage battery cabinet.

And step 33, after the air conditioning system of the double-temperature-zone machine room operates for the first set time T1 minutes (the example parameter range is 10min), detecting the outdoor temperature T, wherein the detection time lasts for a second set time T2 minutes (the example parameter range is 3 min). Further, returning to step 32, it is determined whether the outdoor temperature is in the first temperature zone, the second temperature zone, the third temperature zone, the fourth temperature zone, the fifth temperature zone, or the sixth temperature zone again, and the corresponding mode is executed.

In some embodiments, further comprising: and (3) carrying out a cycle regulation process on the running mode of the air conditioner in the machine room at regular time.

The following further describes a specific process of performing cycle adjustment on the operation mode timing of the air conditioner in the machine room with reference to a flowchart of an embodiment of performing cycle adjustment on the operation mode timing of the air conditioner in the machine room in the method of the present invention shown in fig. 2, including: step S210 and step S220.

And step S210, after the operation mode of the machine room air conditioner is adjusted and every other first set time, detecting the outdoor temperature of the machine room air conditioner for a second set time so as to obtain the outdoor temperature of the machine room air conditioner again.

And S220, readjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner so that the machine room air conditioner controls the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching mode according to the outdoor temperature of the machine room air conditioner.

As shown in fig. 6, the method for controlling the temperature of the air conditioning system of the dual-temperature-zone machine room further includes:

and step 12, after the air conditioning system of the double-temperature-zone machine room operates for the first set time T1 minutes (the example parameter range is 10min), detecting the outdoor temperature T, wherein the detection time lasts for the second set time T2 minutes (the example parameter range is 3 min). Further, it is judged whether the outdoor temperature is in the first temperature zone, the second temperature zone, the third temperature zone, the fourth temperature zone, the fifth temperature zone or the sixth temperature zone, and the corresponding mode thereof is executed according to fig. 7. And then, detecting every other first set time T1 minutes, wherein the detection time lasts for the second set time T2 minutes, judging which temperature zone the outdoor temperature T belongs to, and executing the corresponding mode.

Therefore, the corresponding refrigeration mode is executed according to the temperature zone judged by the outdoor temperature, and the energy consumption of the 6 refrigeration modes is gradually reduced. The unit operation mode is judged again after the first set time t1 minutes, the outdoor fresh air refrigeration mode is utilized to the maximum extent aiming at different conditions, the operation time of the compression refrigeration mode and the output power of the compressor are reduced, the effects of independent intelligent control and energy saving of the dual-temperature-zone system are achieved, the operation cost of the machine room air conditioning system is reduced, and the service life of the equipment is prolonged.

In some embodiments, further comprising: and adjusting the operation mode of the air conditioner in the machine room according to the operation condition of the compressor.

The following further describes a specific process of adjusting the operation mode of the air conditioner in the machine room in combination with the operation condition of the compressor, with reference to a flowchart of an embodiment of adjusting the operation mode of the air conditioner in the machine room in combination with the operation condition of the compressor in the method of the present invention shown in fig. 2, including: step S310 and step S330.

And step S310, after the operation mode of the machine room air conditioner is adjusted, determining whether a compressor in a compressor system of the machine room air conditioner stops operating.

Step S320, if the compressor stops operating, controlling the air conditioner in the machine room to operate according to the condition that the air conditioner is just started after being powered on, that is, controlling the compressor system and the fresh air system of the air conditioner in the machine room to operate, when the operation stop time of the compressor is greater than or equal to a third set time. And under the condition that the stop operation time of the compressor is less than the third set time, controlling the machine room air conditioner to operate according to the operation mode when the air conditioner is stopped last time.

Step S330, if the compressor does not stop operating, controlling the machine room air conditioner to continue operating according to the current operating state, that is, after every other first set time, continuing to detect the outdoor temperature of the machine room air conditioner for a second set time, so as to obtain the outdoor temperature of the machine room air conditioner again. And readjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner so as to control the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner.

As shown in fig. 6, the temperature control method of the air conditioning system of the dual-temperature-zone machine room further includes:

step 13, it is further determined whether the compressor corresponding to the mode is stopped, if not, the previous process is repeated, otherwise, it is determined whether the stop time is longer than a third set time t3 (example parameter range is 1 day). And if the compressor is stopped for more than the third set time t3, the compressor is operated again in the compression + fresh air cooling mode C by default. The compressor is stopped for less than the third set time t3, the default operation last stopped corresponds to the mode.

The dual-temperature-zone machine room air conditioning system can control the operation mode of the machine room air conditioning system in real time according to outdoor temperature, the corresponding operation mode is executed once every other first set time t1 minutes (example parameter range is 10 minutes), meanwhile, the machine set also has timing and memory functions, when the compressor is started again after stopping operation, whether the stop time of the compressor is more than or equal to a third set time t3 (example parameter range is 1 day) is judged, the operation mode of the machine set is further determined, the operation mode of the machine set is judged again after the first set time t1 minutes, the outdoor fresh air refrigeration mode is utilized to the maximum extent according to different conditions, and the operation time of the compression refrigeration mode and the output power of the compressor are reduced. The machine set of the air conditioner in the machine room has timing and memory functions, when the compressor is started again after stopping running, whether the stopping time of the compressor is more than or equal to a third set time t3 is judged, then the running mode of the compressor is determined, the outdoor fresh air refrigerating mode is utilized to the maximum extent according to different conditions, the running time of the compression refrigerating mode and the output power of the compressor are reduced, the effects of independent intelligent control and energy saving of a double-temperature zone system are achieved, the running cost of the air conditioning system in the machine room is reduced, and the service life of equipment is prolonged.

That is to say, the corresponding refrigeration mode is executed according to the temperature zone judged to be located by the outdoor temperature, the energy consumption of the 6 refrigeration modes is gradually reduced, the unit also has the functions of timing and memorizing, when the compressor is started again after being stopped, whether the stop time is more than or equal to the third set time t3 is judged, the operation mode of the unit is further determined, the operation mode of the unit is judged again after the first set time t1 minutes, the outdoor fresh air refrigeration mode is utilized to the maximum extent according to different conditions, the operation time of the compression refrigeration mode and the output power of the compressor are reduced, the effects of independent intelligent control and energy saving of the dual-temperature-zone system are realized, the operation cost of the air conditioning system of the machine room is reduced, and the service life of the equipment is prolonged.

Therefore, the corresponding mode of the temperature zone execution is intelligently judged by detecting the outdoor temperature once every a first set time t1 minutes, the unit has the functions of timing and memorizing, when the compressor is started again after stopping running, whether the stop time is more than or equal to a third set time t3 is judged, the running mode of the unit is further determined, the running mode of the unit is judged again after the first set time t1 minutes, the outdoor fresh air refrigerating mode is utilized to the maximum extent according to different conditions, the running time of the compression refrigerating mode and the output power of the compressor are reduced, the effects of independent intelligent control and energy saving of a dual-temperature zone system are achieved, the running cost of the air conditioning system of the machine room is reduced, and the service life of equipment is prolonged. Therefore, the problems of high energy consumption and short service life of equipment of the machine room air conditioner are solved, and the intelligent control problem of the double-temperature-zone machine room air conditioner can be solved.

In the related scheme, a compression refrigeration system, an air return system and a fresh air refrigeration system are directly used for cooling the system, the operation mode of the system is judged by using the outdoor temperature T, most of the systems control a single temperature zone, and the control of a double temperature zone cannot be realized. The scheme of the invention can realize intelligent control of the dual-temperature area, simultaneously reduce the operation energy consumption and the cost of the air conditioning system of the machine room and prolong the service life of equipment.

Through a large number of tests, the technical scheme of the embodiment is adopted, the temperature zone of the machine room air conditioner is determined according to the outdoor temperature of the machine room air conditioner, the proper refrigeration mode is selected according to the corresponding relation between different temperature zones and different refrigeration modes, and the selected refrigeration mode is adjusted at regular time, so that the outdoor fresh air refrigeration mode is utilized to the maximum extent according to different conditions, and the running time of the compression refrigeration mode and the output power of the compressor are reduced. Therefore, the machine room air conditioner is controlled to execute different refrigeration modes through different outdoor temperatures, the energy consumption of the machine room air conditioner can be reduced, and the service life of equipment can be prolonged.

According to an embodiment of the present invention, there is also provided a control apparatus of a machine room air conditioner corresponding to the control method of the machine room air conditioner. Referring to fig. 4, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The machine room air conditioner comprises: compressor system, new trend system and return air system.

Fig. 5 is a schematic overall layout diagram of an embodiment of the dual-temperature-zone integrated machine room air conditioning system. As shown in fig. 5, the dual-temperature-zone integrated air conditioning system for the machine room mainly includes: the system comprises a compression refrigeration system, a fresh air refrigeration system, a composite refrigeration system, a control system, a storage battery cabinet and a machine room. At the air inlet of the machine room, a compressor, an evaporator, a condenser and a capillary tube are arranged. A first air feeder is arranged at an air outlet of a fresh air pipeline of the machine room. And a first air valve and a first induced draft fan are arranged at an air return opening of a fresh air pipeline of the machine room. And a second air valve and a second induced draft fan are also arranged on a fresh air pipeline of the air conditioner of the machine room. In the machine room, a humidifier is also arranged. An electric air valve such as a first valve and a second valve is arranged between the humidifier and the fresh air pipeline. A filter screen is arranged at an outdoor fresh air inlet between the outdoor side and the indoor side of the machine room. And a gas balance hole and a second air feeder are arranged at the storage battery cabinet in the machine room.

The control device of the scheme of the invention divides the outdoor temperature into 6 temperature zones, corresponds to 6 operation modes, and respectively comprises a first operation mode such as a compression refrigeration mode, a second operation mode such as a compression + fresh air refrigeration mode A, a third operation mode such as a compression + fresh air refrigeration mode B, a fourth operation mode such as a compression + fresh air refrigeration mode C, a fifth operation mode such as a fresh air refrigeration mode, and a sixth operation mode such as a fresh air + return air refrigeration mode.

Case of operating the sixth operation mode: when the outdoor temperature is too low, a sixth operation mode is operated, such as a fresh air and return air refrigeration mode, namely, the sixth operation mode is mixed with hot air in the machine room, so that the temperature of the sixth operation mode meets the temperature of the storage battery cabinet, and the mixed air cools the machine room and the storage battery cabinet.

The control device of the machine room air conditioner comprises: a control unit 102 and an acquisition unit 104.

The control unit 102 is configured to control a compressor system and a fresh air system of the machine room air conditioner to operate when the machine room air conditioner is turned on immediately after being powered on. The specific functions and processes of the control unit 102 are shown in step S110.

In some embodiments, the control unit 102, controlling the operation of the compressor system and the fresh air system of the air conditioner in the machine room, includes: the control unit 102 is specifically configured to control the first hybrid refrigeration system of the machine room air conditioner to operate in the third operation mode.

Fig. 6 is a schematic flowchart of an embodiment of a temperature control device of an air conditioning system of a dual-temperature-zone machine room. As shown in fig. 6, the temperature control device of the air conditioning system of the dual-temperature-zone machine room includes:

The obtaining unit 104 is configured to detect the outdoor temperature of the machine room air conditioner for a second set time after controlling the compressor system and the fresh air system of the machine room air conditioner to operate for the first set time, so as to obtain the outdoor temperature of the machine room air conditioner. The specific function and processing of the acquiring unit 104 are referred to in step S120.

The control unit 102 is further configured to adjust an operation mode of the air conditioner in the machine room according to the outdoor temperature of the air conditioner in the machine room, so that the air conditioner in the machine room controls the compressor system, the fresh air system and the air return system of the air conditioner in the machine room to operate in a switching manner according to the outdoor temperature of the air conditioner in the machine room. The specific function and processing of the control unit 102 are also referred to in step S130.

The scheme of the invention provides an intelligent control device for an air conditioner of a double-temperature-zone machine room, which intelligently judges whether a temperature zone to be treated executes a corresponding mode according to outdoor temperature T, detects the outdoor temperature T once every other first set time T1 minutes, judges the temperature zone to which the outdoor temperature T is treated, and timely adjusts the operation mode. The outdoor fresh air refrigeration mode is utilized to the maximum extent in different situations, the running time of the compression refrigeration mode and the output power of the compressor are reduced, the effects of independent intelligent control and energy saving of the dual-temperature-zone system are achieved, the running cost of the machine room air conditioning system is reduced, and the service life of equipment is prolonged.

In some embodiments, the control unit 102 adjusts the operation mode of the room air conditioner according to the outdoor temperature of the room air conditioner, including any one of the following adjustment situations:

the first regulation case: the control unit 102 is specifically configured to control the machine room air conditioner to operate in the first operation mode if the outdoor temperature of the machine room air conditioner is greater than or equal to a first set temperature.

The second regulation case: the control unit 102 is specifically configured to control the air conditioner of the machine room to operate according to the second operation mode if the outdoor temperature of the air conditioner of the machine room is less than a first set temperature and greater than or equal to a second set temperature.

The third regulation case: the control unit 102 is specifically configured to control the machine room air conditioner to operate in the third operation mode if the outdoor temperature of the machine room air conditioner is less than the second set temperature and greater than or equal to a third set temperature.

A fourth regulation scenario: the control unit 102 is specifically configured to control the air conditioner of the machine room to operate according to the fourth operation mode if the outdoor temperature of the air conditioner of the machine room is less than a third set temperature and greater than or equal to a fourth set temperature.

Fifth adjustment scenario: the control unit 102 is specifically configured to control the machine room air conditioner to operate according to the fifth operation mode if the outdoor temperature of the machine room air conditioner is less than a fourth set temperature and greater than or equal to a fifth set temperature.

A sixth adjustment scenario: the control unit 102 is specifically configured to control the machine room air conditioner to operate in the sixth operation mode if the outdoor temperature of the machine room air conditioner is lower than a fifth set temperature.

In six operation modes of the machine room air conditioner, the power of the compression refrigeration system is gradually reduced until the machine room air conditioner stops operating, and the energy-saving effect is obvious. The first temperature zone, the second temperature zone, the third temperature zone, the fourth temperature zone, the fifth temperature zone and the sixth temperature zone respectively correspond to an outdoor temperature T which is more than or equal to a first set temperature Ta, a first set temperature Ta which is more than an outdoor temperature T which is more than or equal to a second set temperature Tb, a second set temperature Tb which is more than an outdoor temperature T which is more than or equal to a third set temperature Tc, a third set temperature Tc which is more than an outdoor temperature T which is more than or equal to a fourth set temperature Td, a fourth set temperature Td which is more than an outdoor temperature T which is more than or equal to a fifth set temperature Te, and a fifth set temperature Te which is more than an outdoor temperature T. Exemplary parameter ranges of the first set temperature Ta, the second set temperature Tb, the third set temperature Tc, the fourth set temperature Td, and the fifth set temperature Te are 40 to 35 ℃, 35 to 30 ℃, 30 to 25 ℃, 25 to 20 ℃, and 20 ℃ or less, respectively.

Fourth control case: and when the outdoor temperature T is in a fourth temperature zone, performing a fourth operation mode such as a compression and fresh air refrigeration mode C: outdoor cold air → behind the electric air valve, two paths are divided: cool outdoor air → electric air valve → first blower → cool indoor air in the machine room, and cool outdoor air → electric air valve → second induced draft fan. In the second path, the second air valve → the air output by the second induced draft fan, the hot air in the machine room → the air output by the evaporator form mixed air, and then the mixed air → the second blower → the cold air of the storage battery cabinet.

Fig. 7 is a schematic flow chart of another embodiment of a temperature control device of an air conditioning system of a dual-temperature-zone machine room. As shown in fig. 7, the temperature control device of the air conditioning system of the dual-temperature-zone machine room includes:

and step 21, detecting the outdoor temperature T.

If the third set temperature Tc is more than the outdoor temperature T and is more than or equal to the fourth set temperature Td, a fourth operation mode such as a compression and fresh air refrigeration mode C is executed, the fresh air system independently supplies cold to the machine room, provides a part of cold energy to be mixed with cold air of the compression refrigeration system, enables the cold air to meet the temperature of the storage battery cabinet, and cools the storage battery cabinet.

And step 33, after the air conditioning system of the double-temperature-zone machine room runs for the first set time T1 minutes (the example parameter range is 10min), detecting the outdoor temperature T, wherein the detection time lasts for the second set time T2 minutes (the example parameter range is 3 min). Further, returning to step 32, it is determined whether the outdoor temperature is in the first temperature zone, the second temperature zone, the third temperature zone, the fourth temperature zone, the fifth temperature zone, or the sixth temperature zone again, and the corresponding mode is executed.

In some embodiments, further comprising: the process of periodically and circularly adjusting the operation mode of the air conditioner in the machine room specifically comprises the following steps:

the control unit 102 is further configured to detect the outdoor temperature of the room air conditioner for a second set time after every first set time after adjusting the operation mode of the room air conditioner, so as to obtain the outdoor temperature of the room air conditioner again. The specific functions and processes of the control unit 102 are also referred to in step S210.

The control unit 102 is further configured to readjust the operation mode of the air conditioner in the machine room according to the outdoor temperature of the air conditioner in the machine room, so that the air conditioner in the machine room controls the compressor system, the fresh air system, and the air return system of the air conditioner in the machine room to operate in a switched manner according to the outdoor temperature of the air conditioner in the machine room. The specific functions and processes of the control unit 102 are also referred to in step S220.

As shown in fig. 6, the temperature control device of the dual-temperature-zone machine room air conditioning system further includes:

and step 12, after the air conditioning system of the double-temperature-zone machine room operates for the first set time T1 minutes (the example parameter range is 10min), detecting the outdoor temperature T, wherein the detection time lasts for the second set time T2 minutes (the example parameter range is 3 min). Further, it is judged whether the outdoor temperature is in the first temperature zone, the second temperature zone, the third temperature zone, the fourth temperature zone, the fifth temperature zone or the sixth temperature zone, and the corresponding mode thereof is executed according to fig. 7. And then, the detection is carried out once every first set time T1 minutes, the detection time lasts for a second set time T2 minutes, and the temperature zone to which the outdoor temperature T belongs is judged, and the corresponding mode is executed.

In some embodiments, further comprising: the process of adjusting the operation mode of the air conditioner in the machine room by combining the operation condition of the compressor specifically comprises the following steps:

the control unit 102 is further configured to determine whether a compressor in a compressor system of the machine room air conditioner stops operating after adjusting the operation mode of the machine room air conditioner. The specific functions and processes of the control unit 102 are also referred to in step S310.

The control unit 102 is further configured to, if the compressor has stopped operating, control the machine room air conditioner to operate according to a condition that the machine room air conditioner is just started after being powered on, that is, control a compressor system and a fresh air system of the machine room air conditioner to operate, when the operation stop time of the compressor is greater than or equal to a third set time. And under the condition that the stop operation time of the compressor is less than the third set time, controlling the machine room air conditioner to operate according to the operation mode when the air conditioner is stopped last time. The specific functions and processes of the control unit 102 are also referred to in step S320.

The control unit 102 is further configured to control the machine room air conditioner to continue to operate according to the current operation state if the compressor does not stop operating, that is, after every other first set time, detect the outdoor temperature of the machine room air conditioner for a second set time, so as to obtain the outdoor temperature of the machine room air conditioner again. And readjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner so as to control the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner. The specific functions and processes of the control unit 102 are also referred to in step S320.

As shown in fig. 6, the temperature control device of the air conditioning system of the dual-temperature-zone machine room further includes:

The double-temperature-zone machine room air conditioning system can control the operation mode of the machine room air conditioning system in real time according to outdoor temperature, the corresponding operation mode is executed once every other first set time t1 minutes (example parameter range is 10 minutes), meanwhile, the unit also has timing and memory functions, when the compressor is started again after stopping operation, whether the stop time is more than or equal to a third set time t3 (example parameter range is 1 day) is judged, the operation mode is further determined, the operation mode of the unit is judged again after the first set time t1 minutes, the outdoor fresh air refrigeration mode is utilized to the maximum extent according to different conditions, and the operation time of the compression refrigeration mode and the output power of the compressor are reduced. The machine set of the air conditioner in the machine room has timing and memory functions, when the compressor is started again after stopping running, whether the stopping time is larger than or equal to a third set time t3 is judged, then the running mode of the compressor is determined, the outdoor fresh air refrigerating mode is utilized to the maximum extent according to different conditions, the running time of the compression refrigerating mode and the output power of the compressor are reduced, the effects of independent intelligent control and energy saving of a double-temperature-zone system are achieved, the running cost of the air conditioning system in the machine room is reduced, and the service life of equipment is prolonged.

Since the processes and functions implemented by the apparatus of this embodiment substantially correspond to the embodiments, principles and examples of the method, reference may be made to the related descriptions in the embodiments without being detailed in the description of this embodiment, which is not described herein again.

Through a large number of tests, the technical scheme of the invention determines the temperature zone of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, selects a proper refrigeration mode according to the corresponding relation between different temperature zones and different refrigeration modes, and adjusts the selected refrigeration mode at regular time, so as to maximize the outdoor fresh air refrigeration mode according to different conditions, reduce the running time of the compression refrigeration mode and the output power of the compressor, reduce the running cost of the machine room air conditioning system and prolong the service life of equipment.

According to an embodiment of the present invention, there is also provided a machine room air conditioner corresponding to a control device of the machine room air conditioner. The machine room air conditioner may include: the control device of the machine room air conditioner is described above.

Since the processing and functions of the air conditioner in the room of this embodiment are basically corresponding to the embodiments, principles and examples of the foregoing devices, reference may be made to the related descriptions in the foregoing embodiments without being detailed in the description of this embodiment.

Through a large number of tests, the technical scheme of the invention determines the temperature zone of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, selects a proper refrigeration mode according to the corresponding relation between different temperature zones and different refrigeration modes, and adjusts the selected refrigeration mode at regular time, so as to maximize the utilization of the outdoor fresh air refrigeration mode aiming at different conditions, reduce the running time of the compression refrigeration mode and the output power of the compressor, and realize the effects of independent intelligent control and energy saving of the dual-temperature zone system.

According to an embodiment of the present invention, there is also provided a storage medium corresponding to a control method of a room air conditioner, the storage medium including a stored program, wherein when the program runs, a device where the storage medium is located is controlled to execute the control method of the room air conditioner.

Since the processing and functions implemented by the storage medium of this embodiment substantially correspond to the embodiments, principles, and examples of the foregoing method, reference may be made to the related descriptions in the foregoing embodiments without being detailed in the description of this embodiment.

Through a large number of tests, the technical scheme of the invention determines the temperature zone of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, selects a proper refrigeration mode according to the corresponding relation between different temperature zones and different refrigeration modes, and adjusts the selected refrigeration mode at regular time, so as to maximize the utilization of the outdoor fresh air refrigeration mode aiming at different conditions, reduce the running time of the compression refrigeration mode and the output power of the compressor, solve the problems of high energy consumption and low service life of equipment of the machine room air conditioner, reduce the energy consumption and prolong the service life of the equipment.

According to an embodiment of the present invention, there is also provided a processor corresponding to a control method of a room air conditioner, the processor being configured to execute a program, wherein the program executes the control method of the room air conditioner described above.

Since the processing and functions implemented by the processor of this embodiment substantially correspond to the embodiments, principles, and examples of the foregoing method, reference may be made to the related descriptions in the foregoing embodiments without being detailed in the description of this embodiment.

Through a large number of tests, the technical scheme of the invention determines the temperature zone of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, selects a proper refrigeration mode according to the corresponding relation between different temperature zones and different refrigeration modes, and adjusts the selected refrigeration mode in a timing manner, so that the outdoor fresh air refrigeration mode is utilized to the maximum extent aiming at different conditions, the running time of the compression refrigeration mode and the output power of the compressor are reduced, the intelligent control problem of the double-temperature-zone machine room air conditioner can be solved, and the overall control effect of the machine room air conditioner is improved.

In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A control method of a machine room air conditioner is characterized in that the machine room air conditioner comprises the following steps: the system comprises a compressor system, a fresh air system and an air return system; the control method of the machine room air conditioner comprises the following steps:

under the condition that the machine room air conditioner is just started after being electrified, controlling a compressor system and a fresh air system of the machine room air conditioner to operate;

after controlling a compressor system and a fresh air system of the machine room air conditioner to operate for a first set time, detecting the outdoor temperature of the machine room air conditioner for a second set time to obtain the outdoor temperature of the machine room air conditioner;

adjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner so as to enable the machine room air conditioner to control the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching mode according to the outdoor temperature of the machine room air conditioner;

further comprising: after the operation mode of the machine room air conditioner is adjusted, after every other first set time, the outdoor temperature of the machine room air conditioner is detected for the second set time so as to obtain the outdoor temperature of the machine room air conditioner again; readjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, so that the machine room air conditioner controls the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner;

further comprising: determining whether a compressor in a compressor system of the machine room air conditioner stops operating after adjusting an operation mode of the machine room air conditioner; if the compressor stops running, controlling the machine room air conditioner to run under the condition that the running stopping time of the compressor is greater than or equal to third set time after being electrified; under the condition that the stop operation time of the compressor is less than the third set time, controlling the machine room air conditioner to operate according to the operation mode when the compressor is stopped last time; and if the compressor does not stop running, controlling the machine room air conditioner to continue running according to the current running state.

2. The control method of the air conditioner of the machine room as claimed in claim 1, wherein the refrigerating system of the air conditioner of the machine room comprises at least one of the following:

the system comprises a compression refrigeration system for refrigerating by independently utilizing a compressor system of the machine room air conditioner, a fresh air refrigeration system for refrigerating by independently utilizing a fresh air system of the machine room air conditioner, a first composite refrigeration system for performing first refrigeration by combining the compressor system and the fresh air system of the machine room air conditioner, and a second composite refrigeration system for performing second composite refrigeration by combining the fresh air system and the air return system of the machine room air conditioner;

the operation mode of the machine room air conditioner comprises at least one of the following modes:

the first operation mode of the compression refrigeration system, the second operation mode of the first operation of the first composite refrigeration system, the third operation mode of the second operation of the first composite refrigeration system, the fourth operation mode of the third operation of the first composite refrigeration system, the fifth operation mode of the fresh air refrigeration system and the sixth operation mode of the second composite refrigeration system are carried out;

3. The control method of the air conditioner in the machine room according to claim 2, wherein controlling the operation of the compressor system and the fresh air system of the air conditioner in the machine room comprises:

and controlling the first composite refrigeration system of the machine room air conditioner to operate according to the third operation mode.

4. The control method of the air conditioner in the machine room according to claim 2, wherein the adjusting the operation mode of the air conditioner in the machine room according to the outdoor temperature of the air conditioner in the machine room comprises:

if the outdoor temperature of the machine room air conditioner is greater than or equal to a first set temperature, controlling the machine room air conditioner to operate according to the first operation mode;

if the outdoor temperature of the machine room air conditioner is lower than a first set temperature and is higher than or equal to a second set temperature, controlling the machine room air conditioner to operate according to the second operation mode;

if the outdoor temperature of the machine room air conditioner is lower than a second set temperature and is higher than or equal to a third set temperature, controlling the machine room air conditioner to operate according to a third operation mode;

if the outdoor temperature of the machine room air conditioner is lower than a third set temperature and is higher than or equal to a fourth set temperature, controlling the machine room air conditioner to operate according to a fourth operation mode;

if the outdoor temperature of the machine room air conditioner is lower than a fourth set temperature and is higher than or equal to a fifth set temperature, controlling the machine room air conditioner to operate according to a fifth operation mode;

and if the outdoor temperature of the machine room air conditioner is lower than a fifth set temperature, controlling the machine room air conditioner to operate according to the sixth operation mode.

5. A control device of a room air conditioner corresponding to the control method of the room air conditioner according to any one of claims 1 to 4, characterized by comprising: the system comprises a compressor system, a fresh air system and an air return system; the control device of the machine room air conditioner comprises:

the control unit is configured to control the compressor system and the fresh air system of the machine room air conditioner to operate under the condition that the machine room air conditioner is just started after being electrified;

the air conditioner control device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is configured to detect the outdoor temperature of the machine room air conditioner for a second set time after controlling a compressor system and a fresh air system of the machine room air conditioner to operate for a first set time so as to acquire the outdoor temperature of the machine room air conditioner;

the control unit is further configured to adjust the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, so that the machine room air conditioner controls the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching mode according to the outdoor temperature of the machine room air conditioner;

further comprising: the control unit is further configured to detect the outdoor temperature of the machine room air conditioner for a second set time after every first set time after the operation mode of the machine room air conditioner is adjusted, so as to obtain the outdoor temperature of the machine room air conditioner again; readjusting the operation mode of the machine room air conditioner according to the outdoor temperature of the machine room air conditioner, so that the machine room air conditioner controls the compressor system, the fresh air system and the air return system of the machine room air conditioner to operate in a switching manner according to the outdoor temperature of the machine room air conditioner;

further comprising: the control unit is further configured to determine whether a compressor in a compressor system of the machine room air conditioner stops operating after adjusting the operation mode of the machine room air conditioner; if the compressor stops running, controlling the machine room air conditioner to run under the condition of starting immediately after power-on under the condition that the running stopping time of the compressor is greater than or equal to a third set time; under the condition that the stop operation time of the compressor is less than the third set time, controlling the machine room air conditioner to operate according to the operation mode when the compressor is stopped last time; and if the compressor does not stop running, controlling the machine room air conditioner to continue running according to the current running state.

6. A machine room air conditioner, comprising: the control device of the air conditioner of the machine room as claimed in claim 5.

7. A storage medium characterized by comprising a stored program, wherein an apparatus in which the storage medium is located is controlled to execute the control method of the machine room air conditioner according to any one of claims 1 to 4 when the program is executed.