CN113551343A - Fresh air system and control method - Google Patents
Fresh air system and control method Download PDFInfo
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- CN113551343A CN113551343A CN202110867821.5A CN202110867821A CN113551343A CN 113551343 A CN113551343 A CN 113551343A CN 202110867821 A CN202110867821 A CN 202110867821A CN 113551343 A CN113551343 A CN 113551343A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of household appliances, in particular to a fresh air system and a control method, which comprises a control host, wherein the control host is electrically connected with an outdoor air detector, an indoor air detector, a number detection module, a control terminal, an indoor humidity sensor, an outdoor humidity sensor, an air exhaust fan and an air inlet fan; the air inlet fan is connected with an air inlet pipeline, and the air inlet pipeline is connected with an outdoor air suction opening, a sterilization device, a filtering device, a three-way electromagnetic valve I, an ERV total heat exchanger and an indoor air outlet; the filtering device and the three-way electromagnetic valve I are electrically connected with the control host; the air exhaust fan is connected with an air exhaust pipeline, and the air exhaust pipeline is connected with an indoor air exhaust port, a three-way electromagnetic valve II, an ERV total heat exchanger and an outdoor air exhaust port; and the second three-way electromagnetic valve is electrically connected with the control host. The invention can intelligently adjust wind power, reduce cost, save energy and improve user experience.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a fresh air system and a control method.
Background
Along with the improvement of living standard of people, the demand for fresh air is more and more strong.
For example, the publication No. CN211424616U discloses an indoor air monitoring and air exchanging device, which comprises a shell, a first exhaust three-way valve, a second exhaust three-way valve, a first intake three-way valve and a second intake three-way valve, wherein the shell is hollow, the front side of the shell is sequentially provided with an indoor air inlet and an indoor air outlet, and the rear side of the shell is sequentially provided with an outdoor air inlet and an outdoor air outlet which correspond to the indoor air inlet and the indoor air outlet. The air in the room is ventilated and temperature-controlled, and the indoor temperature is kept unchanged.
For another example, publication No. CN206847001U discloses a household fresh air oxygen production device. This domestic new trend oxygen making equipment includes: the system comprises an acquisition system, a control display system and an adjusting system, wherein the adjusting system comprises a box body internally provided with a fresh air passage, an exhaust passage and an oxygen generation passage; the fresh air machine is used for introducing outdoor air into the room through the fresh air channel; an exhaust fan for exhausting the indoor air to the outside through the exhaust passage; the total heat exchanger is used for exchanging heat of outdoor air in the fresh air passage and indoor air in the exhaust passage; and the auxiliary heater is used for heating the outdoor air in the fresh air passage. This domestic new trend oxygen making equipment adopts outdoor all-in-one mounting means not to occupy the indoor space of family, does not destroy user's indoor structure, adopts the outer machine mode of class air conditioner to install, and it is indoor to draw wind through the pipeline, solves the problem because of the unable installation of indoor space is not enough.
In the prior art, the fresh air system cannot automatically control the gears of the air exhaust fan and the air inlet fan according to the difference between the indoor air quality and a preset value, so that energy waste is caused, and the use experience of a user is influenced; the fresh air system in the prior art cannot effectively utilize moisture in indoor and outdoor air and intelligently utilize collected moisture to adjust indoor humidity; meanwhile, a fresh air system in the prior art usually only uses one group of filter elements, so that the quality of outdoor air is better, the filter elements are used when filtering is not needed, and the performance of the filter elements is reduced after the filter elements are used for a long time when the outdoor humidity is higher, so that the cost for replacing the filter elements is improved, and the filtering performance of the filter elements is also reduced; meanwhile, a fresh air system in the prior art cannot intelligently perform reasonable exhaust and exhaust adjustment according to the distribution condition of the number of indoor people, so that the user experience is poor.
Disclosure of Invention
In view of the above disadvantages, the present invention provides a fresh air system and a control method thereof.
The invention provides the following technical scheme:
a fresh air system comprises a control host, wherein the control host is electrically connected with an outdoor air detector, an indoor air detector, a number detection module, a control terminal, an indoor humidity sensor, an outdoor humidity sensor, an air exhaust fan and an air inlet fan;
the air inlet fan is connected with an air inlet pipeline, and the air inlet pipeline is connected with an outdoor air suction opening, a sterilization device, a filtering device, a three-way electromagnetic valve I, an ERV total heat exchanger and an indoor air outlet; the filtering device and the three-way electromagnetic valve I are electrically connected with the control host;
the air exhaust fan is connected with an air exhaust pipeline, and the air exhaust pipeline is connected with an indoor air exhaust port, a three-way electromagnetic valve II, an ERV total heat exchanger and an outdoor air exhaust port; the three-way electromagnetic valve II is electrically connected with the control host;
the first air inlet of the moisture collecting device is connected with the second three-way electromagnetic valve, and the first air outlet of the moisture collecting device is connected with a pipeline between the second three-way electromagnetic valve and the ERV full heat exchanger; a second air inlet of the moisture collecting device is connected with a first three-way electromagnetic valve, and a first air outlet of the moisture collecting device is connected with a pipeline between the first three-way electromagnetic valve and the ERV full heat exchanger;
the water outlet of the moisture collecting device is connected with a spraying device, and the mist outlet of the spraying device is connected with a pipeline between the ERV total heat exchanger and the indoor air outlet;
a pipeline humidity sensor is arranged in a pipeline between the ERV total heat exchanger and the indoor air outlet; the pipeline humidity sensor, the moisture collecting device and the spraying device are electrically connected with the control host.
The indoor air suction opening comprises a plurality of indoor air suction branch pipes, and an indoor air suction valve electrically connected with the control host is installed on each indoor air suction branch pipe.
The indoor air outlet comprises a plurality of indoor air exhaust branch pipes, and an indoor air exhaust valve electrically connected with the control host is installed on each indoor air exhaust branch pipe.
The indoor air detector comprises a carbon dioxide sensor and a formaldehyde sensor.
The outdoor air sensor comprises a PM2.5 sensor and a toxic gas sensor.
The filtering device comprises a plurality of filters for filtering different air components, the filters are connected with air inlet branch pipes, and filtering valves electrically connected with the control host are installed on the air inlet branch pipes.
The temperature controller also comprises an outdoor temperature sensor and an indoor temperature sensor which are electrically connected with the control host.
The control terminal comprises an air inlet gear adjusting knob, an air exhaust gear adjusting knob and a humidity adjusting button, and also displays an outdoor temperature value, an indoor temperature value, an outdoor humidity value, an indoor humidity value, a PM2.5 value, a carbon dioxide value, a formaldehyde value and the actual use duration of the filter element.
A control method of a fresh air system comprises the following steps:
s1, detecting the concentration of carbon dioxide or/and formaldehyde in a room by an indoor air detector, and controlling the air exhaust fan and the air intake fan to be started by the control host when the concentration of the carbon dioxide or the concentration of the formaldehyde is greater than a preset value;
s2, controlling the main machine to automatically adjust the air exhaust fan and the air inlet fan to corresponding gears according to a preset range in which the difference value between the concentration of the carbon dioxide or the concentration of the formaldehyde and a preset value falls;
s3, selecting an air inlet gear adjusting knob and an air exhaust gear adjusting knob of the control terminal to manually adjust the gears of the air exhaust fan and the air inlet fan; or the control host continuously automatically adjusts the gears of the air exhaust fan and the air inlet fan, and the priority of manual adjustment is higher than that of automatic adjustment;
s4, detecting the outdoor air components by the outdoor air detector, opening the filtering valves of the corresponding filters by the control host according to the air components, and closing the other filtering valves; after being sterilized by the sterilizing device, the outdoor air enters the opened filtering valve and then enters the corresponding filter for filtering;
the control host records the opening time of each filter valve and displays the opening time as the actual service life of the filter element;
s5, detecting indoor humidity by an indoor humidity sensor, and detecting outdoor humidity by an outdoor humidity sensor; the outdoor humidity value and the indoor humidity value are displayed on the control terminal;
when the indoor humidity is less than the rated value, the control host controls the three-way electromagnetic valve II to open the corresponding valve, so that the indoor air directly enters the ERV total heat exchanger;
when the outdoor humidity is less than the rated value, the control host controls the three-way electromagnetic valve to open the corresponding valve, so that the filtered outdoor air directly enters the ERV total heat exchanger;
when the indoor humidity is greater than the rated value, the control host controls the three-way electromagnetic valve II to open the corresponding valve, so that the indoor air enters the moisture collecting device; after moisture in the indoor air is removed, the indoor air enters the ERV full heat exchanger;
when the outdoor humidity is greater than the rated value, the control host controls the three-way electromagnetic valve to open the corresponding valve, so that the filtered outdoor air enters the moisture collecting device; after moisture in the outdoor air is removed, the outdoor air enters an ERV full heat exchanger;
s6, detecting the humidity of the air exhausted from the indoor air outlet by a pipeline humidity sensor, and adjusting the set humidity value by a humidity adjusting button of the control terminal; when the humidity of the air exhausted from the indoor air outlet is lower than a set humidity value, the control host controls the spraying device to be started, and adjusts the opening and closing degree of a spraying nozzle of the spraying device to enable the humidity of the air exhausted from the indoor air outlet to be equal to the set humidity value;
s7, detecting the number of people in each room by a people number detection module, and determining a gathering position; the control host controls the opening degree of the indoor air draft valve and the indoor air exhaust valve at the gathering position to be increased, and controls the opening degree of the indoor air draft valve and the indoor air exhaust valve at the other positions to be reduced.
S1 further includes the steps of: the outdoor temperature sensor detects outdoor temperature, the indoor temperature sensor detects indoor temperature, and the control terminal displays an indoor temperature value and an outdoor humidity value.
The invention has the beneficial effects that:
1. according to the invention, the gears of the air exhaust fan and the air inlet fan can be automatically controlled according to the difference between the indoor air quality and the preset value, so that the user experience is improved, and the energy is saved;
2. the invention can effectively utilize the moisture in the indoor and outdoor air and intelligently utilize the collected moisture to adjust the indoor humidity;
3. the invention can intelligently select different filters to filter the outdoor air according to the components of the outdoor air, and monitor the service life of the filter element, thereby avoiding the damage of the filter element and ensuring the filtering performance;
4. the invention can adjust the air pumping and exhausting according to the gathering condition of indoor personnel and improve the air pumping and exhausting efficiency.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of an indoor suction opening of the present invention;
FIG. 3 is a schematic view of an indoor air outlet of the present invention;
fig. 4 is a schematic view of a filter device of the present invention.
Labeled as: the system comprises a control host 101, an air extracting fan 102, an indoor air extracting opening 103, an outdoor temperature sensor 104, an outdoor air detector 105, an indoor air detector 106, a people number detection module 107, a control terminal 108, an indoor humidity sensor 109, an outdoor humidity sensor 110, an indoor temperature sensor 111, a two-way electromagnetic valve 112, a moisture collecting device 113, a spraying device 114, an air inlet fan 115, a sterilizing device 116, a filtering device 117, a one-way electromagnetic valve 118, an outdoor air outlet 119, an ERV total heat exchanger 120 and an indoor air outlet 121.
Detailed Description
Example one
As shown in fig. 1, a fresh air system includes a control host 101, wherein the control host 101 is electrically connected to an outdoor air detector 105, an indoor air detector 106, a people number detection module 107, a control terminal 108, an indoor humidity sensor 109, an outdoor humidity sensor 110, an air suction fan 102, and an air intake fan 115.
The control terminal 108 comprises an air intake gear adjusting knob, an air exhaust gear adjusting knob and a humidity adjusting button, and also displays an outdoor temperature value, an indoor temperature value, an outdoor humidity value, an indoor humidity value, a PM2.5 value, a carbon dioxide value, a formaldehyde value and the actual service life of the filter element, and can also display other numerical values according to the installation condition of actual equipment.
The indoor air detector 106 includes a carbon dioxide sensor, a formaldehyde sensor, or other sensors may be selected depending on other components of the indoor air. The indoor air detector 106 detects indoor air components such as carbon dioxide concentration and formaldehyde concentration, and compares the detected carbon dioxide concentration with a preset value, or compares the formaldehyde concentration with a preset value, and when the carbon dioxide concentration or the formaldehyde concentration is greater than the preset value, the control host 101 starts the air exhaust fan 102 and the air intake fan 115 to change the air. In order to be able to intelligently and automatically control the gears of the suction fan 102 and the intake fan 115, several value ranges may be set, and each value range corresponds to a gear value. The actual carbon dioxide concentration or formaldehyde concentration is differed from the preset value, and the obtained difference value falls into which value range, then the control host 101 adjusts the air exhaust fan 102 and the air intake fan 115 to corresponding gears, so that the purpose of automatically controlling the gears of the air exhaust fan 102 and the air intake fan 115 according to the indoor air quality is achieved.
The outdoor air sensor 105 includes a PM2.5 sensor, a toxic gas sensor, and other sensors may be selected according to the actual use situation. The outdoor air sensor 105 detects outdoor air components such as PM2.5 index and the content of common toxic gases.
The air inlet fan 115 is connected with an air inlet pipeline, and the air inlet pipeline is connected with an outdoor air suction opening 122, a sterilizing device 116, a filtering device 117, a three-way electromagnetic valve I118, an ERV full heat exchanger 120 and an indoor air outlet 121. The filtering device 117 and the three-way solenoid valve 118 are electrically connected to the control host 101. The sterilization device 116 sterilizes the bacteria using UV. As shown in fig. 4, the filter device 117 includes several filters for filtering different air components, that is, different filter cartridges for each filter, such as a filter cartridge capable of filtering common dust, a filter cartridge capable of filtering PM2.5, a filter cartridge capable of filtering toxic gas, and so on. Each filter is connected with an air inlet branch pipe, and a filter valve electrically connected with the control host machine 101 is installed on each air inlet branch pipe. The air inlet branch pipes of the air inlet ends of all the filters are connected with the sterilizing device 116 through the main pipe, and the air inlet branch pipes of the air outlet ends of all the filters are connected with the three-way electromagnetic valve I118 through the main pipe. The filtering valve of the corresponding filter is selected to be opened according to the composition of the outdoor air, and the remaining valves are closed, and when the filtering valve is opened, the control host 101 records the opening time of the filtering valve. Can realize like this that the filter that chooses for use different to different outdoor air filters, avoid using same filter persistence, cause the filter performance extravagant, cause filter performance to reduce even. The actual use time of the filter element is recorded by recording the valve opening time, so that the filter element replacement time can be accurately mastered.
The air extraction fan 102 is connected with an air extraction pipeline which is connected with an indoor air extraction opening 103, a three-way electromagnetic valve II 112, an ERV total heat exchanger 120 and an outdoor air outlet 119. The second three-way electromagnetic valve 112 is electrically connected with the control host 101.
In order to effectively utilize the moisture in the indoor and outdoor air and intelligently utilize the collected moisture to adjust the indoor humidity, a moisture collecting device 113 is further provided, and the moisture collecting device 113 can remove and collect the moisture in the air. The first air inlet of the moisture collecting device 113 is connected with the second three-way electromagnetic valve 112, and the first air outlet of the moisture collecting device 113 is connected with a pipeline between the second three-way electromagnetic valve 112 and the ERV full heat exchanger 120. The second air inlet of the moisture collecting device 113 is connected with the first three-way electromagnetic valve 118, and the first air outlet of the moisture collecting device 113 is connected with a pipeline between the first three-way electromagnetic valve 118 and the ERV full heat exchanger 120.
The water outlet of the moisture collection device 113 is connected to the spraying device 114 so that the water collected by the moisture collection device 113 can be utilized by the spraying device 114. The mist outlet of the spraying device 114 is connected with a pipeline between the ERV total heat exchanger 120 and the indoor air outlet 121. A duct humidity sensor is installed in a duct between the ERV total heat exchanger 120 and the indoor air outlet 121, and the duct humidity sensor may detect the humidity of the gas to be exhausted from the indoor air outlet 121. The pipeline humidity sensor, the moisture collecting device 113 and the spraying device 114 are electrically connected with the control host 101.
In order to adjust the air suction volume and the air suction volume of each room according to the number of people in different rooms and the people gathering condition, the fresh air system further comprises a number detection module 107, the number detection module 107 comprises cameras installed in the rooms, and the fresh air system further comprises a processing module, and the number detection module 107 can identify the number of people in the rooms according to the shot room images and identify the directions of people gathering. As shown in fig. 2, the indoor suction opening 103 includes a plurality of indoor suction branches, and each indoor suction branch is provided with an indoor suction valve electrically connected to the control host 101. As shown in fig. 3, the indoor exhaust outlet 121 includes a plurality of indoor exhaust branch pipes, and each indoor exhaust branch pipe is provided with an indoor exhaust valve electrically connected to the control host 101. The opening and closing degree of the indoor air exhaust valve and the indoor air exhaust valve in the room with more people or the gathering place of people is increased, and the opening and closing degree of the indoor air exhaust valve and the indoor air exhaust valve in other positions is reduced, so that the working efficiency of a fresh air system is improved, and the use experience of a user is improved.
Example two
The difference between the present embodiment and the present embodiment is that, as shown in fig. 1, the fresh air system further includes an outdoor temperature sensor 104 and an indoor temperature sensor 111 electrically connected to the control host 101. The outdoor temperature detected by the outdoor temperature sensor 104 and the indoor temperature detected by the indoor temperature sensor 111 may be displayed on the control terminal 108.
EXAMPLE III
A control method of a fresh air system comprises the following steps:
s1, detecting the concentration of carbon dioxide or/and formaldehyde in a room by the indoor air detector 106, and controlling the air exhaust fan 102 and the air intake fan 115 to be started by the control host 101 when the concentration of carbon dioxide or formaldehyde is greater than a preset value; the outdoor temperature sensor 104 detects the outdoor temperature, the indoor temperature sensor 111 detects the indoor temperature, and the control terminal 108 displays the indoor temperature value and the outdoor humidity value;
s2, controlling the host 101 to automatically adjust the air exhaust fan 102 and the air intake fan 115 to corresponding gears according to a preset range in which the difference between the concentration of the carbon dioxide or the concentration of the formaldehyde and a preset value falls;
s3, the gears of the air exhaust fan 102 and the air inlet fan 115 can be manually adjusted by selecting an air inlet gear adjusting knob and an air exhaust gear adjusting knob of the control terminal 108; or the control host 101 continues to automatically adjust the gears of the air exhaust fan 102 and the air intake fan 115, and the priority of manual adjustment is higher than that of automatic adjustment;
s4, detecting the outdoor air component by the outdoor air detector 105, controlling the host 101 to open the filter valve of the corresponding filter according to the air component, and closing the rest filter valves; after being sterilized by the sterilizing device 116, the outdoor air enters the opened filtering valve and then enters the corresponding filter for filtering;
the control host 101 records the opening time of each filter valve and displays the actual service life of the filter element;
s5, detecting indoor humidity by the indoor humidity sensor 109 and detecting outdoor humidity by the outdoor humidity sensor 110; the outdoor humidity value and the indoor humidity value are displayed on the control terminal 108;
when the indoor humidity is smaller than the rated value, the control host 101 controls the second three-way electromagnetic valve 112 to open the corresponding valve, so that the indoor air directly enters the ERV total heat exchanger 120;
when the outdoor humidity is less than the rated value, the control host 101 controls the three-way electromagnetic valve I118 to open the corresponding valve, so that the filtered outdoor air directly enters the ERV total heat exchanger 120;
when the indoor humidity is greater than the rated value, the control host 101 controls the second three-way electromagnetic valve 112 to open the corresponding valve, so that the indoor air enters the moisture collecting device 113; after moisture in the indoor air is removed, the indoor air enters the ERV total heat exchanger 120;
when the outdoor humidity is greater than the rated value, the control host 101 controls the three-way electromagnetic valve I118 to open the corresponding valve, so that the filtered outdoor air enters the moisture collection device 113; after moisture in the outdoor air is removed, the outdoor air enters the ERV total heat exchanger 120;
s6, detecting the humidity of the air exhausted from the indoor air outlet 121 by the pipeline humidity sensor, and adjusting the set humidity value by the humidity adjusting button of the control terminal 108; when the humidity of the air exhausted from the indoor air outlet 121 is lower than a set humidity value, the control host 101 controls the spraying device 114 to be opened, and adjusts the opening and closing degree of a spraying nozzle of the spraying device 114, so that the humidity of the air exhausted from the indoor air outlet 121 is equal to the set humidity value;
s7, a people number detection module 107 detects the number of people in each room and determines the gathering position; the control host 101 controls the opening degree of the indoor exhaust valve and the indoor exhaust valve at the gathering position to increase, and controls the opening degree of the indoor exhaust valve and the indoor exhaust valve at the other positions to decrease.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A new trend system which characterized in that: the intelligent air conditioner comprises a control host (101), wherein the control host (101) is electrically connected with an outdoor air detector (105), an indoor air detector (106), a people number detection module (107), a control terminal (108), an indoor humidity sensor (109), an outdoor humidity sensor (110), an air suction fan (102) and an air inlet fan (115);
the air inlet fan (115) is connected with an air inlet pipeline, and the air inlet pipeline is connected with an outdoor air suction opening (122), a sterilization device (116), a filtering device (117), a three-way electromagnetic valve I (118), an ERV full heat exchanger (120) and an indoor air outlet (121); the filtering device (117) and the three-way solenoid valve I (118) are electrically connected with the control host (101);
the air exhaust fan (102) is connected with an air exhaust pipeline, and the air exhaust pipeline is connected with an indoor air exhaust opening (103), a three-way electromagnetic valve II (112), an ERV total heat exchanger (120) and an outdoor air outlet (119); the second three-way electromagnetic valve (112) is electrically connected with the control host (101);
the device also comprises a moisture collecting device (113), wherein a first air inlet of the moisture collecting device (113) is connected with a second three-way electromagnetic valve (112), and a first air outlet of the moisture collecting device (113) is connected with a pipeline between the second three-way electromagnetic valve (112) and the ERV full heat exchanger (120); a second air inlet of the moisture collecting device (113) is connected with a first three-way electromagnetic valve (118), and a first air outlet of the moisture collecting device (113) is connected with a pipeline between the first three-way electromagnetic valve (118) and the ERV full heat exchanger (120);
a water outlet of the moisture collecting device (113) is connected with a spraying device (114), and a mist outlet of the spraying device (114) is connected with a pipeline between the ERV total heat exchanger (120) and the indoor air outlet (121);
a pipeline humidity sensor is arranged in a pipeline between the ERV total heat exchanger (120) and the indoor air outlet (121); the pipeline humidity sensor, the moisture collecting device (113) and the spraying device (114) are electrically connected with the control host machine (101).
2. The fresh air system of claim 1, wherein: indoor suction opening (103) include the indoor convulsions branch pipe of a plurality of, install the indoor convulsions valve of being connected with main control system (101) electricity on every indoor convulsions branch pipe.
3. The fresh air system of claim 2, wherein: the indoor air outlet (121) comprises a plurality of indoor air exhaust branch pipes, and an indoor air exhaust valve electrically connected with the control host (101) is installed on each indoor air exhaust branch pipe.
4. The fresh air system of claim 1, wherein: the indoor air detector (106) comprises a carbon dioxide sensor and a formaldehyde sensor.
5. The fresh air system of claim 4, wherein: the outdoor air sensor (105) comprises a PM2.5 sensor and a toxic gas sensor.
6. The fresh air system of claim 5, wherein: the filtering device (117) comprises a plurality of filters for filtering different air components, the filters are connected with air inlet branch pipes, and filtering valves electrically connected with the control host machine (101) are installed on the air inlet branch pipes.
7. The fresh air system of claim 6, wherein: the temperature controller also comprises an outdoor temperature sensor (104) and an indoor temperature sensor (111) which are electrically connected with the control host machine (101).
8. The fresh air system of claim 7, wherein: the control terminal (108) comprises an air inlet gear adjusting knob, an air exhaust gear adjusting knob and a humidity adjusting button, and also displays an outdoor temperature value, an indoor temperature value, an outdoor humidity value, an indoor humidity value, a PM2.5 value, a carbon dioxide value, a formaldehyde value and the actual service life of the filter element.
9. A control method of a fresh air system as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
s1, detecting the concentration of carbon dioxide or/and formaldehyde in a room by an indoor air detector (106), and controlling the opening of the air exhaust fan (102) and the air intake fan (115) by the control host (101) when the concentration of the carbon dioxide or the concentration of the formaldehyde is greater than a preset value;
s2, controlling the main machine (101) to automatically adjust the air exhaust fan (102) and the air intake fan (115) to corresponding gears according to a preset range in which the difference value between the carbon dioxide concentration or the formaldehyde concentration and a preset value falls;
s3, the gears of the air exhaust fan (102) and the air inlet fan (115) can be manually adjusted by selecting an air inlet gear adjusting knob and an air exhaust gear adjusting knob of the control terminal (108); or the control host (101) continues to automatically adjust the gears of the air exhaust fan (102) and the air inlet fan (115), and the priority of manual adjustment is higher than that of automatic adjustment;
s4, detecting the outdoor air component by the outdoor air detector (105), opening the filtering valve of the corresponding filter by the control host (101) according to the air component, and closing the other filtering valves; after being sterilized by the sterilizing device (116), the outdoor air enters the opened filtering valve and then enters the corresponding filter for filtering;
the control host (101) records the opening time of each filtering valve and displays the actual service time of the filter element;
s5, detecting indoor humidity by an indoor humidity sensor (109), and detecting outdoor humidity by an outdoor humidity sensor (110); the outdoor humidity value and the indoor humidity value are displayed on the control terminal (108);
when the indoor humidity is smaller than the rated value, the control host (101) controls the three-way electromagnetic valve II (112) to open the corresponding valve, so that the indoor air directly enters the ERV full heat exchanger (120);
when the outdoor humidity is smaller than the rated value, the control host (101) controls the three-way electromagnetic valve I (118) to open the corresponding valve, so that the filtered outdoor air directly enters the ERV total heat exchanger (120);
when the indoor humidity is greater than the rated value, the control host (101) controls the three-way electromagnetic valve II (112) to open the corresponding valve, so that the indoor air enters the moisture collecting device (113); after moisture in the indoor air is removed, the indoor air enters an ERV full heat exchanger (120);
when the outdoor humidity is greater than the rated value, the control host (101) controls the three-way electromagnetic valve I (118) to open the corresponding valve, so that the filtered outdoor air enters the moisture collecting device (113); after moisture in the outdoor air is removed, the outdoor air enters an ERV full heat exchanger (120);
s6, detecting the humidity of the air exhausted from the indoor air outlet (121) by a pipeline humidity sensor, and adjusting the set humidity value by a humidity adjusting button of the control terminal (108); when the humidity of the air exhausted from the indoor air outlet (121) is lower than a set humidity value, the control host (101) controls the spraying device (114) to be opened, and adjusts the opening and closing degree of a spraying nozzle of the spraying device (114) to enable the humidity of the air exhausted from the indoor air outlet (121) to be equal to the set humidity value;
s7, a people number detection module (107) detects the number of people in each room and determines the gathering position; the control host (101) controls the opening degree of the indoor air draft valve and the indoor exhaust valve at the gathering position to be increased, and controls the opening degree of the indoor air draft valve and the indoor exhaust valve at the other positions to be reduced.
10. The control method according to claim 9, wherein S1 further includes the steps of: an outdoor temperature sensor (104) detects outdoor temperature, an indoor temperature sensor (111) detects indoor temperature, and an indoor temperature value and an outdoor humidity value are displayed on a control terminal (108).
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