CN204880471U - Heat pump air conditioning unit - Google Patents
Heat pump air conditioning unit Download PDFInfo
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- CN204880471U CN204880471U CN201520457840.0U CN201520457840U CN204880471U CN 204880471 U CN204880471 U CN 204880471U CN 201520457840 U CN201520457840 U CN 201520457840U CN 204880471 U CN204880471 U CN 204880471U
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- heat exchanger
- expansion valve
- pump air
- air conditioner
- electric expansion
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Abstract
Heat pump air conditioning unit relates to the air conditioning technology field, and its structure is including being parallelly connected first heat exchanger and the second heat exchanger that sets up, and first heat exchanger is established ties there is a electronic expansion valve, and the second heat exchanger is established ties has the 2nd electronic expansion valve. When heating, transform according to indoor heat exchanger load, the refrigerant flow of two heat exchangers is accessible time flow through through two electronic expansion valve regulation and control, and then can balance and share the load, improve the energy efficiency ratio of unit, especially, under being in different operating modes respectively to two heat exchangers, to being in the heat exchanger under the favourable operating mode, the electronic expansion valve's of series connection with it degree of opening increase is so that more refrigerants flow in this heat exchanger, and then increase the heat transfer ability of this heat exchanger, and to being in the heat exchanger under the unfavorable operating mode, its corresponding electronic expansion valve's degree of opening reduces, and then weaken the heat transfer ability of this heat exchanger, not only can guarantee the heat transfer ability of whole unit like this, and reduced the energy consumption, improve the heat transfer performance of whole unit.
Description
Technical field
The utility model relates to air-conditioning technical field, is specifically related to a kind of heat pump air conditioner unit adopting double heat exchanger.
Background technology
Heat pump air conditioner unit is the circulatory system be made up of devices such as compressor, off-premises station, indoor sets.Refrigerant is at source pump internal circulation flow under the effect of compressor, and then the function that can realize cooling in summer or heat winter, thus heat pump air conditioner unit is widely used in the multiple place such as house, commercial building, to improve the comfort level of environment temperature.
Existing heat pump air conditioner unit is generally only provided with a heat exchanger in off-premises station, when indoor load is less, single chamber external heat exchanger enough meets the demand of refrigerating capacity or heating capacity, but when indoor load increases suddenly, single chamber external heat exchanger can not meet the demand of refrigerating capacity or heating capacity, the not only refrigeration of unit, heating effect is poor, Energy Efficiency Ratio is low, and make outdoor heat exchanger and compressor be in overload operation, be easy to infringement outdoor heat exchanger and compressor, reduce their service life, in addition, when outdoor environment temperature changes, such as, when outdoor environment becomes unfavorable, outdoor heat exchanger only has to be increased cold medium flux and guarantees refrigeration or heating effect, and then the operating power of compressor need be increased, thus increase the energy consumption of heat pump air conditioner unit, cold medium flux as outdoor heat exchanger remains unchanged or reduces, its heat exchange property will be caused very poor, have a strong impact on refrigeration or heating effect.
Utility model content
The purpose of this utility model is for deficiency of the prior art, and the heat pump air conditioner unit providing a kind of heat exchange property good, energy-conservation.
The purpose of this utility model is achieved through the following technical solutions:
A kind of heat pump air conditioner unit is provided, comprise compressor, cross valve, outdoor heat exchanger and indoor heat exchanger, the high-pressure exhaust of described compressor connects the first port of described cross valve, 3rd port and outdoor heat exchanger of described cross valve, indoor heat exchanger, 4th port of cross valve connects successively, second port of described cross valve connects the low pressure air suction mouth of described compressor, described outdoor heat exchanger comprises in the First Heat Exchanger be arranged in parallel and the second heat exchanger, the first electric expansion valve is provided with between described First Heat Exchanger and described indoor heat exchanger, the second electric expansion valve is provided with between described second heat exchanger and described indoor heat exchanger.
Wherein, described first electric expansion valve parallel connection is provided with the first check valve preventing refrigerant return to described First Heat Exchanger.
Wherein, described second electric expansion valve parallel connection is provided with the second check valve preventing refrigerant return to described second heat exchanger.
Wherein, the first dispenser assembly for distributing cold medium flux is provided with between described first electric expansion valve and described First Heat Exchanger.
Wherein, the second dispenser assembly for distributing cold medium flux is provided with between described second electric expansion valve and described second heat exchanger.
Wherein, between described first electric expansion valve and described indoor heat exchanger, be provided with the first antifrost heat exchanger, between described second electric expansion valve and described indoor heat exchanger, be provided with the second antifrost heat exchanger.
Wherein, subcooler assembly is provided with between described outdoor heat exchanger and indoor heat exchanger.
Wherein, gas-liquid separator is provided with between the second port of described cross valve and the low pressure air suction mouth of described compressor.
Wherein, oil eliminator is provided with between the high-pressure exhaust of described compressor and the first port of described cross valve.
Wherein, described compressor is frequency-changeable compressor.
The beneficial effects of the utility model:
Heat pump air conditioner unit of the present utility model, its structure comprises in the First Heat Exchanger be arranged in parallel and the second heat exchanger, and First Heat Exchanger is in series with the first electric expansion valve, and the second heat exchanger is in series with the second electric expansion valve.When heating, according to the conversion of indoor heat exchanger load, the refrigerant flow of two heat exchangers can be flow through in time by two electric expansion valve regulation and control, and then the load of sharing unit can be balanced, improve the Energy Efficiency Ratio of heat pump air conditioner unit, under different operating modes is in respectively for two heat exchangers, be in the heat exchanger under favourable operating mode, the open degree of its corresponding electric expansion valve increases to make larger refrigerant flow into this heat exchanger, and then increase the exchange capability of heat of this heat exchanger, and for the heat exchanger be under unfavorable operating mode, the open degree of its corresponding electric expansion valve reduces, and then weaken the exchange capability of heat of this heat exchanger, the exchange capability of heat of whole heat pump air conditioner unit can not only be ensured like this, and decrease energy consumption, improve the heat exchange property of whole heat pump air conditioner unit.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the structural representation of heat pump air conditioner unit of the present utility model.
Include in Fig. 1:
1-frequency-changeable compressor;
2-cross valve;
3-outdoor heat exchanger, 30-First Heat Exchanger, 31-second heat exchanger, 32-first electric expansion valve, 33-second electric expansion valve, 34-first antifrost heat exchanger, 35-second antifrost heat exchanger, 36-first dispenser assembly, 37-second dispenser assembly, 38-first check valve, 39-second check valve;
4-subcooler assembly;
5-indoor heat exchanger;
6-gas-liquid separator;
7-oil eliminator.
Detailed description of the invention
With the following Examples the utility model is further described.
The detailed description of the invention of a kind of heat pump air conditioner unit of the present utility model, as shown in Figure 1, comprises frequency-changeable compressor 1, cross valve 2, outdoor heat exchanger 3, subcooler assembly 4, indoor heat exchanger 5, gas-liquid separator 6 and oil eliminator 7.
The high-pressure exhaust of frequency-changeable compressor 1 connects first port (A) of cross valve 2 by oil eliminator 7,3rd port (C) of cross valve 2 is connected successively with the 4th port (D) of outdoor heat exchanger 3, subcooler assembly 4, indoor heat exchanger 5, cross valve 2, and second port (B) of cross valve 2 connects the low pressure air suction mouth of frequency-changeable compressor 1 by gas-liquid separator 6.Outdoor heat exchanger 3 comprises First Heat Exchanger 30 in being arranged in parallel and the second heat exchanger 31, the first electric expansion valve 32 is provided with between First Heat Exchanger 30 and indoor heat exchanger 5, be provided with the second electric expansion valve 33 between second heat exchanger 31 and indoor heat exchanger 5, and the first electric expansion valve 32 and the second electric expansion valve 33 are in being arranged in parallel.
When heat pump air conditioner unit heats, subcooler assembly 4 is not opened, the cold media gas of HTHP is discharged through the high-pressure exhaust of frequency-changeable compressor 1, and first port (A) of cross valve 2 is entered by oil eliminator 7, partial freeze that cold media gas carries by oil eliminator 7 oil carries out being separated and oil exit pipe through oil eliminator 7 is back in frequency-changeable compressor 1, then cold media gas flows into indoor heat exchanger 5 through the 4th port (D) of cross valve 2 and carries out the refrigerant liquid that heat exchange is condensed into middle temperature high pressure with it, heat release simultaneously makes indoor temperature raise, refrigerant liquid enters the 3rd port (C) of cross valve 2 after the throttling decrease temperature and pressure and heat exchange of two articles of outdoor heat exchange routes in parallel subsequently, the refrigerant liquid of last low-temp low-pressure is back to the low pressure air suction mouth of frequency-changeable compressor 1 through gas-liquid separator 6 from second port (B) of cross valve 2, complete one and heat circulation.Wherein two outdoor heat exchange routes in parallel, article one, heat exchange route is the First Heat Exchanger 30 of the first electric expansion valve 32 and series connection with it, another heat exchange route is the First Heat Exchanger 30 of the first electric expansion valve 32 and series connection with it, and the refrigerant of middle temperature high pressure flows into above-mentioned two heat exchangers after the decrease temperature and pressure of two electric expansion valves to start to carry out the refrigerant liquid that heat exchange forms low-temp low-pressure.
In the present embodiment, according to the conversion of indoor heat exchanger 5 load, regulation and control two electric expansion valves 32 can be passed through in time, two heat exchangers 30 are flow through in the open degree of 33 and then regulation and control, the refrigerant flow of 31, thus the load of sharing unit can be balanced, improve the Energy Efficiency Ratio of heat pump air conditioner unit, especially for two heat exchangers 30, 31 be in different working conditions under, for the heat exchanger be under favourable operating mode, the open degree increase of its corresponding electric expansion valve makes larger refrigerant flow into this heat exchanger, and then increase the exchange capability of heat of this heat exchanger, and for the heat exchanger be under unfavorable operating mode, the open degree of its corresponding electric expansion valve reduces, and then weaken the exchange capability of heat of this heat exchanger, the exchange capability of heat of whole heat pump air conditioner unit can not only be ensured like this, and decrease energy consumption, improve the heat exchange property of whole heat pump air conditioner unit.
The first antifrost heat exchanger 34 is provided with between first electric expansion valve 32 and subcooler assembly 4, and the below of First Heat Exchanger 30 is located at by the first antifrost heat exchanger 34, be provided with the second antifrost heat exchanger 35 between second electric expansion valve 33 and subcooler assembly 4, and the below of the second heat exchanger 31 is located at by the second antifrost heat exchanger 35.When heating, antifrost heat exchanger 34,35 pairs of refrigerants carried out cold treatment and then discharged certain heat, and these heats can prevent the condensed water of heat exchanger from condensing, and then effectively can prevent outdoor heat exchanger 3 frosting.
The first dispenser assembly 36 for distributing cold medium flux is provided with between first electric expansion valve 32 and First Heat Exchanger 30, the second dispenser assembly 37, first dispenser assembly 36 and the second dispenser assembly 37 be provided with between second electric expansion valve 33 and the second heat exchanger 31 for distributing cold medium flux includes distributor and capillary.
In the present embodiment, the first electric expansion valve 32 parallel connection is provided with and prevents refrigerant return to be provided with to the first check valve 38, second electric expansion valve 33 parallel connection of First Heat Exchanger 30 the second check valve 39 preventing refrigerant return to the second heat exchanger 31.
During heat pump air conditioner unit refrigeration, first electric expansion valve 32 and the second electric expansion valve 33 are all closed, refrigerant flows into the first antifrost heat exchanger 34 by the first check valve 38 after First Heat Exchanger 30 heat exchange, refrigerant flows into the second antifrost heat exchanger 35 by the second check valve 39 after the second heat exchanger 31 heat exchange, antifrost heat exchanger 34, 35 pairs of refrigerants flowed through carry out the cold treatment excessively of one-level, then the refrigerant that one-level is excessively cold is pooled to subcooler assembly 4, cooler assembly carries out secondary to refrigerant and crosses cold treatment and decrease temperature and pressure process, then the refrigerant after two-stage crosses cold treatment arrives indoor heat exchanger 5.The present embodiment carries out two-stage to refrigerant and crosses cold treatment, greatly improves the heat exchange property of refrigerant.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection domain; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.
Claims (10)
1. heat pump air conditioner unit, comprise compressor, cross valve, outdoor heat exchanger and indoor heat exchanger, the high-pressure exhaust of described compressor connects the first port of described cross valve, 3rd port and outdoor heat exchanger of described cross valve, indoor heat exchanger, 4th port of cross valve connects successively, second port of described cross valve connects the low pressure air suction mouth of described compressor, it is characterized in that: described outdoor heat exchanger comprises in the First Heat Exchanger be arranged in parallel and the second heat exchanger, the first electric expansion valve is provided with between described First Heat Exchanger and described indoor heat exchanger, the second electric expansion valve is provided with between described second heat exchanger and described indoor heat exchanger.
2. heat pump air conditioner unit according to claim 1, is characterized in that: described first electric expansion valve parallel connection is provided with the first check valve preventing refrigerant return to described First Heat Exchanger.
3. heat pump air conditioner unit according to claim 1, is characterized in that: described second electric expansion valve parallel connection is provided with the second check valve preventing refrigerant return to described second heat exchanger.
4. heat pump air conditioner unit according to claim 1, is characterized in that: be provided with the first dispenser assembly for distributing cold medium flux between described first electric expansion valve and described First Heat Exchanger.
5. heat pump air conditioner unit according to claim 1, is characterized in that: be provided with the second dispenser assembly for distributing cold medium flux between described second electric expansion valve and described second heat exchanger.
6. heat pump air conditioner unit according to claim 1, it is characterized in that: between described first electric expansion valve and described indoor heat exchanger, be provided with the first antifrost heat exchanger, between described second electric expansion valve and described indoor heat exchanger, be provided with the second antifrost heat exchanger.
7. heat pump air conditioner unit according to claim 1, is characterized in that: be provided with subcooler assembly between described outdoor heat exchanger and indoor heat exchanger.
8. heat pump air conditioner unit according to claim 1, is characterized in that: be provided with gas-liquid separator between the second port of described cross valve and the low pressure air suction mouth of described compressor.
9. heat pump air conditioner unit according to claim 1, is characterized in that: be provided with oil eliminator between the high-pressure exhaust of described compressor and the first port of described cross valve.
10. heat pump air conditioner unit according to claim 1, is characterized in that: described compressor is frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457840.0U CN204880471U (en) | 2015-06-30 | 2015-06-30 | Heat pump air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520457840.0U CN204880471U (en) | 2015-06-30 | 2015-06-30 | Heat pump air conditioning unit |
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| Publication Number | Publication Date |
|---|---|
| CN204880471U true CN204880471U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520457840.0U Active CN204880471U (en) | 2015-06-30 | 2015-06-30 | Heat pump air conditioning unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571076A (en) * | 2016-01-20 | 2016-05-11 | 青岛海尔空调电子有限公司 | Control method for refrigerating of water-cooled multi-split air conditioner |
-
2015
- 2015-06-30 CN CN201520457840.0U patent/CN204880471U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571076A (en) * | 2016-01-20 | 2016-05-11 | 青岛海尔空调电子有限公司 | Control method for refrigerating of water-cooled multi-split air conditioner |
| CN105571076B (en) * | 2016-01-20 | 2019-08-20 | 青岛海尔空调电子有限公司 | A kind of control method of water-cooled multi-connected mechanism cold |
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