CN211400161U - Heat pump system and air conditioner - Google Patents
Heat pump system and air conditioner Download PDFInfo
- Publication number
- CN211400161U CN211400161U CN202020004800.1U CN202020004800U CN211400161U CN 211400161 U CN211400161 U CN 211400161U CN 202020004800 U CN202020004800 U CN 202020004800U CN 211400161 U CN211400161 U CN 211400161U
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- pump system
- heat pump
- pressure
- heat exchanger
- pressure sensor
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- 238000001514 detection method Methods 0.000 claims abstract description 29
- 239000003507 refrigerant Substances 0.000 claims abstract description 17
- 238000001704 evaporation Methods 0.000 claims abstract description 13
- 230000008020 evaporation Effects 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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Abstract
The utility model provides a heat pump system and air conditioner, heat pump system include compressor, indoor heat exchanger, outdoor heat exchanger and cross valve, and the first end of cross valve is provided with pressure sensor through detecting the indoor heat exchanger of tube coupling on the detection pipeline. The utility model provides a heat pump system compares with prior art, set up the E mouth of cross valve and the pipeline of indoor heat exchanger intercommunication into the detection pipeline, set up pressure sensor on the detection pipeline, according to heat pump system's operating mode, the flow direction of refrigerant in heat pump system changes, realize refrigerating and two processes of heating, can detect heat pump system's evaporating pressure and condensing pressure more accurately and portably, this scheme only needs a pressure sensor can realize the detection to evaporating pressure and condensing pressure when detecting moreover. The number of the pressure sensors is reduced, and the cost is saved.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, more specifically say, relate to a heat pump system and air conditioner.
Background
The pressure sensor is a common component used in air conditioner, the pressure sensor is mainly used to regulate the capacity output of air conditioner, for frequency conversion heat pump machine, the operation frequency of compressor is generally regulated by using system high pressure control to heat, and the operation frequency of compressor is regulated by using system low pressure control to refrigerate.
For the above situation, a refrigeration system needs at least two pressure sensors, one installed on the discharge line of the compressor and one installed on the suction line of the compressor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat pump system and air conditioner to solve the problem that all needs to install pressure sensor on the exhaust pipe of compressor and breathing pipe that exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the heat pump system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger and a four-way valve, wherein the first end of the four-way valve is connected with the indoor heat exchanger through a detection pipeline, and a pressure sensor is arranged on the detection pipeline.
Further, when the heat pump system is used for refrigerating, a refrigerant flows to the detection pipeline from the indoor heat exchanger, and the pressure sensor detects the evaporation pressure.
Further, when the heat pump system heats, a refrigerant flows to the indoor heat exchanger from the detection pipeline, and the pressure sensor detects condensation pressure.
Further, a first stop valve is arranged on the detection pipeline, and the pressure sensor is arranged between the first stop valve and the first end of the four-way valve.
Further, a second end and a third end of the four-way valve are respectively communicated with two ends of the compressor, and a fourth end of the four-way valve is communicated with one end of the outdoor heat exchanger.
Furthermore, a throttling device is connected between the indoor heat exchanger and the outdoor heat exchanger in series.
Furthermore, the other end of the outdoor heat exchanger is also communicated with a second stop valve, and the throttling device is arranged between the second stop valve and the outdoor heat exchanger.
Furthermore, the other end of the outdoor heat exchanger is also communicated with a second stop valve, and the throttling device is arranged between the second stop valve and the indoor heat exchanger.
Another object of the present invention is to provide an air conditioner, which includes the above heat pump system.
The utility model provides a heat pump system's beneficial effect lies in: compared with the prior art, the utility model discloses set up the E mouth of cross valve and the pipeline of indoor heat exchanger intercommunication into the detection pipeline, set up pressure sensor on the detection pipeline, according to heat pump system's operating mode, the refrigerant flow direction in heat pump system changes, realize refrigerating and two processes of heating, can detect heat pump system's evaporating pressure and condensing pressure more accurately and portably, this scheme only needs a pressure sensor can realize the detection to evaporating pressure and condensing pressure when detecting moreover. The number of the pressure sensors is reduced, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a heat pump system according to an embodiment of the present invention, in which a part of the structure is not shown;
fig. 2 is a schematic structural diagram ii of a heat pump system according to an embodiment of the present invention, and a partial structure is not shown;
fig. 3 is a schematic structural diagram of the prior art.
Wherein, in the drawings, the reference numerals are mainly as follows:
1. a compressor; 2. an outdoor heat exchanger; 3. a four-way valve; 4. detecting a pipeline; 5. a pressure sensor; 6. a first shut-off valve; 7. a throttling device; 8. a second shut-off valve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3, a heat pump system according to an embodiment of the present invention will be described. The heat pump system comprises a compressor 1, an indoor heat exchanger, an outdoor heat exchanger 2 and a four-way valve 3, wherein a D port of the four-way valve 3 is communicated with one end of the compressor 1, an S port of the four-way valve 3 is communicated with the other end of the compressor 1, an E port of the four-way valve 3 is communicated with a detection pipeline 4, the E port of the four-way valve 3 is communicated with the indoor heat exchanger through the detection pipeline 4, and a pressure sensor 5 is arranged on the detection pipeline 4.
The utility model provides a heat pump system, compared with the prior art, set up the E mouth of cross valve 3 and the pipeline of indoor heat exchanger intercommunication into detecting pipeline 4, set up pressure sensor 5 on detecting pipeline 4, according to heat pump system's operating mode, the flow direction of refrigerant in heat pump system changes, realize two processes of refrigeration and heating, can detect heat pump system's evaporating pressure and condensing pressure more accurately and portably, this scheme only needs a pressure sensor 5 can realize the detection to evaporating pressure and condensing pressure when detecting. The number of the pressure sensors 5 is reduced, and the cost is saved.
During refrigeration, a low-pressure refrigerant flows from the indoor heat exchanger to the first stop valve 6, passes through the detection port of the pressure sensor 5, flows to the port S through the port E of the four-way valve 3, and then flows to the suction port of the compressor 1, the low pressure detected by the pressure sensor 5 is the low pressure of the heat pump, and the operation frequency of the refrigeration compressor 1 can be controlled through the pressure. After being discharged from an exhaust port of the compressor 1, a high-temperature and high-pressure gaseous refrigerant flows to a port C through a port D of the four-way valve 3 and then flows into the outdoor heat exchanger 2 for condensation, the condensed medium-temperature and high-pressure liquid refrigerant is throttled by the throttling device 7, and the throttling device 7 can be an electronic expansion valve, a capillary tube and the like, which are not described herein again. The throttled low-temperature and low-pressure saturated refrigerant flows to the indoor heat exchanger through the second stop valve 8 to be evaporated, the evaporated low-temperature and low-pressure gaseous refrigerant returns to the outdoor unit through the first stop valve 6, passes through the pressure sensor 5, passes through the E port of the four-way valve 3 to the S port, and is sucked into the compressor 1 to complete a cycle. At this time, the pressure of the heat pump system detected by the pressure sensor 5 corresponds to the evaporation pressure of the heat pump system, and the cooling capacity output is controlled depending on the evaporation pressure.
When the actual detection pressure is higher than the upper limit of the target pressure range of the heat pump system, the frequency of the compressor 1 is increased, the evaporation pressure of the system is reduced, and the refrigeration output is increased; when the actual detection pressure is lower than the lower limit of the system target pressure range, the frequency of the compressor 1 is reduced, the evaporation pressure of the system is increased, and the refrigeration output is reduced; when the actual detection pressure is within the upper and lower limits of the system target pressure range, the frequency of the compressor 1 is maintained, the system evaporation pressure is maintained, and the current capacity output is maintained.
When heating, the high-pressure refrigerant is discharged from the exhaust port of the compressor 1, flows to the port E through the port D of the four-way valve 3, passes through the detection port of the pressure sensor 5, and then flows to the indoor heat exchanger through the first stop valve 6, the pressure detected by the pressure sensor 5 is the high pressure of the heat pump system, and the operating frequency of the heating compressor 1 can be controlled by the pressure. High-temperature and high-pressure gaseous refrigerant is discharged from an exhaust port of the compressor 1, passes through a D port of the four-way valve 3 and then reaches an E port, passes through the pressure sensor 5 and then flows into an indoor unit heat exchanger through the first stop valve 6 to be condensed, condensed medium-temperature and high-pressure liquid refrigerant flows back to an outdoor unit through the second stop valve 8 and is throttled by the throttling device 7, throttled low-temperature and low-pressure saturated refrigerant flows to an outdoor unit heat exchanger to be evaporated, and evaporated low-temperature and low-pressure gaseous refrigerant passes through the C port of the four-way valve 3 and then reaches the S port and then is sucked into the compressor. The pressure detected by the pressure sensor 5 at this time corresponds to the condensing pressure of the heat pump system.
When the actual detection pressure is higher than the upper limit of the system target pressure range, the frequency of the compressor 1 is reduced, the condensation pressure of the heat pump system is reduced, and the heating output is reduced; when the actual detection pressure is lower than the lower limit of the system target pressure range, the frequency of the compressor 1 is increased, the condensation pressure of the heat pump system is increased, and the heating output is increased; when the actual detection pressure is within the upper and lower limits of the system target pressure range, the frequency of the compressor 1 is maintained, the condensation pressure of the heat pump system is maintained, and the current capacity output is maintained.
The utility model also provides an air conditioner, the air conditioner includes above-mentioned heat pump system, more exactly, should be a variable frequency air conditioner.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The heat pump system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger and a four-way valve, and is characterized in that: the first end of the four-way valve is connected with the indoor heat exchanger through a detection pipeline, and a pressure sensor is arranged on the detection pipeline.
2. The heat pump system of claim 1, wherein: when the heat pump system is used for refrigerating, a refrigerant flows to the detection pipeline from the indoor heat exchanger, and the pressure sensor detects the evaporation pressure.
3. The heat pump system of claim 1, wherein: when the heat pump system heats, the refrigerant flows to the indoor heat exchanger from the detection pipeline, and the pressure sensor detects the condensation pressure.
4. The heat pump system of claim 1, wherein: the detection pipeline is also provided with a first stop valve, and the pressure sensor is arranged between the first stop valve and the first end of the four-way valve.
5. The heat pump system of claim 1, wherein: and the second end and the third end of the four-way valve are respectively communicated with the two ends of the compressor, and the fourth end of the four-way valve is communicated with one end of the outdoor heat exchanger.
6. The heat pump system of claim 5, wherein: and a throttling device is connected between the indoor heat exchanger and the outdoor heat exchanger in series.
7. The heat pump system of claim 6, wherein: the other end of the outdoor heat exchanger is also communicated with a second stop valve, and the throttling device is arranged between the second stop valve and the outdoor heat exchanger.
8. The heat pump system of claim 6, wherein: the other end of the outdoor heat exchanger is also communicated with a second stop valve, and the throttling device is arranged between the second stop valve and the indoor heat exchanger.
9. An air conditioner, characterized in that: comprising a heat pump system according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020004800.1U CN211400161U (en) | 2020-01-02 | 2020-01-02 | Heat pump system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020004800.1U CN211400161U (en) | 2020-01-02 | 2020-01-02 | Heat pump system and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN211400161U true CN211400161U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020004800.1U Active CN211400161U (en) | 2020-01-02 | 2020-01-02 | Heat pump system and air conditioner |
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| Country | Link |
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| CN (1) | CN211400161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135277A1 (en) * | 2020-01-02 | 2021-07-08 | 珠海格力电器股份有限公司 | Heat pump system and air conditioner |
-
2020
- 2020-01-02 CN CN202020004800.1U patent/CN211400161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135277A1 (en) * | 2020-01-02 | 2021-07-08 | 珠海格力电器股份有限公司 | Heat pump system and air conditioner |
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