CN202371919U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN202371919U CN202371919U CN2011205502773U CN201120550277U CN202371919U CN 202371919 U CN202371919 U CN 202371919U CN 2011205502773 U CN2011205502773 U CN 2011205502773U CN 201120550277 U CN201120550277 U CN 201120550277U CN 202371919 U CN202371919 U CN 202371919U
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- Prior art keywords
- condenser
- evaporimeter
- air
- node
- compressor
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- Expired - Lifetime
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- 239000003507 refrigerant Substances 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 13
- 230000004907 flux Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 8
- 210000004243 sweat Anatomy 0.000 description 6
- 235000019628 coolness Nutrition 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an air conditioner. The method comprises the following steps: a compressor; the input end of the condenser is connected with the exhaust end of the compressor; the input end of the first evaporator is connected with the output end of the condenser, and the output end of the first evaporator is connected with the air suction end of the compressor; and the second evaporator is arranged on the air inlet side of the condenser, the input end of the second evaporator is connected to a first node, the output end of the second evaporator is connected with the compressor and used for precooling the air entering the condenser, and the first node is a node between the condenser and the first evaporator. Through the utility model discloses, solved among the prior art air conditioner and shut down the problem that causes the unable use of air conditioner because of high pressure protection under the high temperature operating mode, and then reached the effect that the air conditioner can normally work under the high temperature operating mode.
Description
Technical field
The utility model relates to a kind of air-conditioner.
Background technology
When the air-conditioning system of using was at present used under the too high situation of outdoor environment temperature, because environment temperature is too high, condensing pressure was high, can cause unit to reach the high voltage protective value of setting, shuts down thereby make unit get into high voltage protective.Like this in the hot area of some weather under situation about need freeze summer can not normally use air-conditioning on the contrary because the high voltage protective of unit is shut down, can't satisfy user's refrigeration demand.
Under worst hot case, shut down the problem that causes air-conditioner to use to air-conditioner in the correlation technique, do not propose effective solution at present as yet because of high voltage protective.
The utility model content
The main purpose of the utility model is to provide a kind of air-conditioner, to solve the problem that air-conditioner causes air-conditioner to use because of the high voltage protective shutdown in the prior art under worst hot case.
To achieve these goals,, a kind of air-conditioner is provided, has comprised: compressor according to the utility model; Condenser, the input of condenser is connected with the exhaust end of compressor; First evaporimeter, the input of first evaporimeter is connected with the output of condenser, and the output of first evaporimeter is connected with the suction end of compressor; And second evaporimeter; Be arranged on the inlet side of condenser; The input of second evaporimeter is connected first node, and the output of second evaporimeter is connected with compressor, is used for the air that gets into condenser is carried out precooling treatment; Wherein, first node is the node between the condenser and first evaporimeter.
Further, air-conditioner also comprises: adjustment structure, be connected between the input of the first node and second evaporimeter, and be used to regulate the cold medium flux that gets into second evaporimeter.
Further, air-conditioner also comprises: testing agency, be arranged on the output of condenser, and be used to detect the refrigerant pressure of the output of condenser, obtain first force value; And controller, be connected respectively with adjustment structure with testing agency, be used for aperture size according to first force value control and regulation structure.
Further, controller comprises: judge module, be connected with testing agency, and be used to judge that whether first force value is greater than preset value; Output module is connected between judge module and the adjustment structure, is used for when judge module is judged first force value greater than preset value, and the output control signal is so that the aperture size of controller control and regulation structure.
Further, testing agency is a pressure sensor.
Further, adjustment structure is an electric expansion valve.
Further, air-conditioner also comprises: restricting element is arranged between the first node and first evaporimeter; And reservoir, be arranged between first node and the condenser, be used to store refrigerant to replenish the cold medium flux of first evaporimeter of flowing through.
Through the utility model, adopt the air-conditioner that comprises following structure: compressor; Condenser, the input of condenser is connected with the exhaust end of compressor; First evaporimeter, the input of first evaporimeter is connected with the output of condenser, and the output of first evaporimeter is connected with the suction end of compressor; And second evaporimeter; Be arranged on the inlet side of condenser; The input of second evaporimeter is connected first node, and the output of second evaporimeter is connected with compressor, is used for the air that gets into condenser is carried out precooling treatment; Wherein, first node is the node between the condenser and first evaporimeter.Through inlet side second evaporimeter is set the air that gets into condenser is carried out precooling at condenser; Under worst hot case; The air that is cooled after lowering the temperature passes through the high-temperature high-pressure refrigerant steam heat exchange that condenser and compressor are discharged again; Thereby the condensing pressure in the condenser is descended; It is too high and high voltage protective occurs and shut down to be unlikely to build-up of pressure, has solved in the prior art air-conditioner and under worst hot case, has shut down the problem that causes air-conditioner to use because of high voltage protective, and then reached the effect that under worst hot case air-conditioner can operate as normal.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the sketch map according to the air-conditioner of the utility model embodiment; And
Fig. 2 is the sketch map according to the air-conditioner of the utility model preferred embodiment.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
Fig. 1 is the sketch map according to the air-conditioner of the utility model embodiment, and is as shown in Figure 1, and the air-conditioner of this embodiment comprises: compressor 1, condenser 3, the first evaporimeters 8 and second evaporimeter 2.
Particularly; The input of condenser 3 is connected with the exhaust end of compressor 1, and the input of first evaporimeter 8 is connected with the output of condenser 3, and the output of first evaporimeter 8 is connected with the suction end of compressor 1; Second inlet side (second evaporimeter 2 also can be designed to incorporate structure with condenser 3); The input of second evaporimeter 2 is connected first node, and the output of second evaporimeter 2 is connected with compressor 1, is used for the air that gets into condenser 3 is carried out precooling treatment; Wherein, first node is the node between the condenser 3 and first evaporimeter 8.
Inlet side through at condenser 3 increases an evaporimeter, makes through the air to the condenser 3 of flowing through to shift to an earlier date precooling, makes air themperature be reduced to lower temperature T 2 by higher temperature T 1; The condenser 3 of flowing through again after air themperature reduces; So just increased the heat transfer temperature difference of condenser 3, condensation effect improves, and system condensing pressure reduces; Shut down thereby avoided unit protection to occur owing to pressure is higher, guaranteed the normal operation of unit.
Wherein, after high-temperature high-pressure refrigerant gas process condenser 3 condensations that compressor 1 is discharged, can be divided into two parts, get back to compressor behind first evaporimeter, 8 sweat coolings that most of refrigerant process major loop is flowed through indoor and get into next circulation.Another fraction cold-producing medium can be flowed through second evaporimeter 2 evaporation of condenser inlet side to sucking with the machine that is compressed after the refrigerant of major loop mixes behind the air precooling, goes into next the circulation through overcompression is laggard.
Under the Normal Environmental Temperature, first evaporimeter, 8 sweat coolings that condensed cold-producing medium is flowed through indoor through major loop fully, the resulting refrigerating capacity of user is maximum in such cases.When causing pressure to be elevated to certain value (can set as the case may be) when the environment temperature rising; Second evaporimeter 2 evaporation of will flowing through of sub-fraction cold-producing medium is carried out being compressed the machine suction after the precooling with after the refrigerant of major loop mixes to air; Shunted owing to part of refrigerant in this case; Refrigerant in second evaporimeter 2 reduces EAT through evaporation after the throttling and the air heat exchange of skimming over; The high-temperature high-pressure refrigerant steam heat exchange that the air after the cooling of being cooled is discharged through condenser and compressor again, thus the condensing pressure in the condenser is descended, be unlikely to too high and the high voltage protective shutdown occurs.Condensed another part refrigerant liquid is the indoor cold that provides by first evaporimeter, 8 sweat coolings of former loop through the indoor, continues the purpose of refrigeration under the operating mode that reaches a high temperature.
The air that 2 pairs of entering condensers 3 of second evaporimeter are set through the inlet side at condenser 3 carries out precooling; Under worst hot case; The high-temperature high-pressure refrigerant steam heat exchange that the air after the cooling of being cooled is discharged through condenser 3 and compressor 1 again; Thereby the condensing pressure in the condenser 3 is descended; It is too high and high voltage protective occurs and shut down to be unlikely to build-up of pressure, has solved in the prior art air-conditioner and under worst hot case, has shut down the problem that causes air-conditioner to use because of high voltage protective, and then reached the effect that under worst hot case air-conditioner can operate as normal.
Fig. 2 is the sketch map according to the air-conditioner of the utility model preferred embodiment, and is as shown in Figure 2, and the air-conditioner of this embodiment comprises: compressor 1, condenser 3 (comprising outer blower fan 10), first evaporimeter 8 (comprising inner blower 9) and second evaporimeter 2.
Particularly; The input of condenser 3 is connected with the exhaust end of compressor 1, and the input of first evaporimeter 8 is connected with the output of condenser 3, and the output of first evaporimeter 8 is connected with the suction end of compressor 1; Second inlet side (second evaporimeter 2 also can be designed to incorporate structure with condenser 3); The input of second evaporimeter 2 is connected first node, and the output of second evaporimeter 2 is connected with compressor 1, is used for the air that gets into condenser 3 is carried out precooling treatment; Wherein, first node is the node between the condenser 3 and first evaporimeter 8.
Inlet side through at condenser 3 increases an evaporimeter, makes through the air to the condenser 3 of flowing through to shift to an earlier date precooling, makes air themperature be reduced to lower temperature T 2 by higher temperature T 1; The condenser 3 of flowing through again after air themperature reduces; So just increased the heat transfer temperature difference of condenser 3, condensation effect improves, and system condensing pressure reduces; Shut down thereby avoided unit protection to occur owing to pressure is higher, guaranteed the normal operation of unit.
Preferably, air-conditioner also comprises: adjustment structure 6, be connected between the input of the first node and second evaporimeter 2, and be used to regulate the cold medium flux that gets into second evaporimeter 2.
Through between the input of the first node and second evaporimeter 2, adjustment structure 6 being set, reached the effect that the coolant quantity that gets into second evaporimeter 2 is regulated.
Preferably, air-conditioner also comprises: testing agency 4, be arranged on the output of condenser 3, and be used to detect the refrigerant pressure of the output of condenser 3, obtain first force value; And controller 5, be connected respectively with adjustment structure 6 with testing agency 4, be used for aperture size according to first force value control and regulation structure.
Wherein, controller 5 comprises: judge module, be connected with testing agency 4, and be used to judge that whether first force value is greater than preset value; Output module is connected between judge module and the adjustment structure 6, is used for when judge module is judged first force value greater than preset value, and the output control signal is so that the aperture size of controller 5 control and regulation structures 6.
Preferably, testing agency 4 is a pressure sensor.
Through pressure sensor, the pressure of the output that can directly detect condenser 3 and the effect of pressure changing have been reached.
Preferably, adjustment structure 6 is an electric expansion valve.
Through electric expansion valve, reached and accurately to have regulated the effect that gets into the coolant quantity in second evaporimeter 2 efficiently.
Preferably, air-conditioner also comprises: restricting element 7 is arranged between the first node and first evaporimeter 8; And reservoir, be arranged between first node and the condenser 3, be used to store refrigerant to replenish the cold medium flux of first evaporimeter 8 of flowing through.
Through increasing a reservoir in condenser 3 backs, the cold-producing medium under worst hot case in the reservoir just can add the circulation of indoor main evaporator, replenishes the refrigerating capacity by the 2 shunting losses of second evaporimeter, satisfies user's refrigeration demand.
After high-temperature high-pressure refrigerant gas process condenser 3 condensations that compressor 1 is discharged; Can be divided into two parts, get back to compressor 1 after most of refrigerant flows through after through main throttling arrangement (restricting element) 7 throttlings first evaporimeter, 8 sweat coolings indoor through major loop and get into next the circulation.Second evaporimeter, 2 evaporations that another fraction cold-producing medium can pass through the condenser inlet side of flowing through after electric expansion valve 6 throttlings are to sucking with the machine that is compressed after the refrigerant of major loop mixes behind the air precooling, go into next the circulation through overcompression is laggard.
Under the Normal Environmental Temperature, electric expansion valve 6 is closed fully, and condensed cold-producing medium is first evaporimeter, 8 sweat coolings through flowing through indoor after main throttling arrangement 7 throttlings fully, and the resulting refrigerating capacity of user is maximum in such cases.When causing pressure to be elevated to certain value (can set as the case may be) when the environment temperature rising; When pressure sensor 4 detected force value surpassed setting value, controller 5 was just controlled electric expansion valve 6 and is opened, and at this moment the sub-fraction cold-producing medium will pass through evaporimeter 2 evaporations of flowing through after electric expansion valve 6 throttlings air is carried out being compressed the machine suction after the precooling with after the refrigerant of major loop mixes; Shunted owing to part of refrigerant in this case; The cold-producing medium of indoor sweat cooling of flowing through will reduce relatively, and the resulting refrigerating capacity of user also can reduce a part relatively, if indoor refrigerating capacity can be met the demands; Also can behind condenser, increase a reservoir; Cold-producing medium under worst hot case in the reservoir just can add the circulation of indoor main evaporator, replenishes the refrigerating capacity of shunting loss, satisfies user's demand.
Because what branch road adopted is electric expansion valve, not only can play the effect of throttling but also can regulate flow, thereby like this through regulating the condensing pressure that can be controlled condenser by the precooling degree that flow just can control air.
The control of the aperture of electric expansion valve can be controlled according to concrete unit situation and user's operating position, illustrates a kind of relatively simply control method: when pressure P during greater than setting value P1, electric expansion valve is opened to aperture C (specifically adjustable); When pressure during greater than setting value Δ P, electric expansion valve is opened to C+F (Δ P).Wherein, C is the initial opening of electric expansion valve, and Δ P is for when time detected pressures value-setting value, and F (Δ P) is for being the function of parameter with pressure increment Δ P.
Control the aperture of branch road electric expansion valve 6 through the condensing pressure that records; The flow through coolant quantity of second evaporimeter 2 of adjusting reaches the purpose that the air to the condenser 3 of flowing through carries out precooling, thereby further reduces the condensing pressure in the condenser; Guarantee under the operating mode of high ambient temperature; Thereby the pressure of unit is unlikely to Tai Gao and gets into high voltage protective and shut down, and makes the unit can operate as normal, satisfies the demand to refrigeration in user scorching summer.Through condensing pressure the aperture of electric expansion valve 6 is controlled in real time on the other hand, avoided too much cold-producing medium to flow into branch road, guarantee under the situation of unit operate as normal, to offer user's more refrigeration capacity.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. an air-conditioner is characterized in that, comprising:
Compressor (1);
Condenser (3), the input of said condenser (3) is connected with the exhaust end of said compressor (1);
First evaporimeter (8), the input of said first evaporimeter (8) is connected with the output of said condenser (3), and the output of said first evaporimeter (8) is connected with the suction end of said compressor (1); And
Second evaporimeter (2); Be arranged on the inlet side of said condenser (3); The input of said second evaporimeter (2) is connected first node, and the output of said second evaporimeter (2) is connected with said compressor (1), is used for the air that gets into said condenser (3) is carried out precooling treatment; Wherein, said first node is the node between said condenser (3) and said first evaporimeter (8).
2. air-conditioner according to claim 1; It is characterized in that; Said air-conditioner also comprises: adjustment structure (6), be connected between the input of said first node and said second evaporimeter (2), and be used for regulating the cold medium flux that gets into said second evaporimeter (2).
3. air-conditioner according to claim 2 is characterized in that, said air-conditioner also comprises:
Testing agency (4) is arranged on the output of said condenser (3), is used to detect the refrigerant pressure of the output of said condenser (3), obtains first force value; And
Controller (5) is connected respectively with said adjustment structure (6) with said testing agency (4), is used for controlling according to said first force value aperture size of said adjustment structure (6).
4. air-conditioner according to claim 3 is characterized in that, said controller (5) comprising:
Judge module is connected with said testing agency (4), is used to judge that whether said first force value is greater than preset value;
Output module; Be connected between said judge module and the said adjustment structure (6); Be used for when said judge module is judged said first force value greater than said preset value, the output control signal is so that said controller (5) is controlled the aperture size of said adjustment structure (6).
5. air-conditioner according to claim 3 is characterized in that, said testing agency (4) is a pressure sensor.
6. air-conditioner according to claim 3 is characterized in that, said adjustment structure (6) is an electric expansion valve.
7. air-conditioner according to claim 1 is characterized in that, said air-conditioner also comprises:
Restricting element (7) is arranged between said first node and said first evaporimeter (8); And
Reservoir is arranged between said first node and the said condenser (3), is used to store refrigerant to replenish the cold medium flux of said first evaporimeter (8) of flowing through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205502773U CN202371919U (en) | 2011-12-23 | 2011-12-23 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205502773U CN202371919U (en) | 2011-12-23 | 2011-12-23 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371919U true CN202371919U (en) | 2012-08-08 |
Family
ID=46595617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205502773U Expired - Lifetime CN202371919U (en) | 2011-12-23 | 2011-12-23 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371919U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440072A (en) * | 2016-08-23 | 2017-02-22 | 广州市设计院 | Efficient unit type air conditioning machine with multiple evaporation temperatures |
| CN108954993A (en) * | 2018-10-08 | 2018-12-07 | 珠海格力电器股份有限公司 | Refrigeration cycle system and air conditioner |
| CN109579334A (en) * | 2018-10-26 | 2019-04-05 | 青岛海尔股份有限公司 | Low noise refrigerating system and refrigerator with the system |
| CN109579335A (en) * | 2018-10-26 | 2019-04-05 | 青岛海尔股份有限公司 | Refrigeration system and refrigerator with the system |
| CN109579336A (en) * | 2018-10-26 | 2019-04-05 | 青岛海尔股份有限公司 | Refrigerator noise reduction refrigeration system and refrigerator with the system |
| CN110748965A (en) * | 2019-11-14 | 2020-02-04 | 珠海格力电器股份有限公司 | Air conditioning system and air conditioning system control method |
| CN114251884A (en) * | 2021-12-14 | 2022-03-29 | 珠海格力电器股份有限公司 | Temperature control device and method and heat exchange unit |
-
2011
- 2011-12-23 CN CN2011205502773U patent/CN202371919U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440072A (en) * | 2016-08-23 | 2017-02-22 | 广州市设计院 | Efficient unit type air conditioning machine with multiple evaporation temperatures |
| CN106440072B (en) * | 2016-08-23 | 2023-10-20 | 广州市设计院 | High-efficient unit formula air conditioner of many evaporating temperature |
| CN108954993A (en) * | 2018-10-08 | 2018-12-07 | 珠海格力电器股份有限公司 | Refrigeration cycle system and air conditioner |
| CN109579334A (en) * | 2018-10-26 | 2019-04-05 | 青岛海尔股份有限公司 | Low noise refrigerating system and refrigerator with the system |
| CN109579335A (en) * | 2018-10-26 | 2019-04-05 | 青岛海尔股份有限公司 | Refrigeration system and refrigerator with the system |
| CN109579336A (en) * | 2018-10-26 | 2019-04-05 | 青岛海尔股份有限公司 | Refrigerator noise reduction refrigeration system and refrigerator with the system |
| CN109579336B (en) * | 2018-10-26 | 2022-05-20 | 海尔智家股份有限公司 | Refrigerator noise reduction refrigerating system and refrigerator with same |
| CN110748965A (en) * | 2019-11-14 | 2020-02-04 | 珠海格力电器股份有限公司 | Air conditioning system and air conditioning system control method |
| CN110748965B (en) * | 2019-11-14 | 2023-11-24 | 珠海格力电器股份有限公司 | Air conditioning system and air conditioning system control method |
| CN114251884A (en) * | 2021-12-14 | 2022-03-29 | 珠海格力电器股份有限公司 | Temperature control device and method and heat exchange unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
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| CX01 | Expiry of patent term |