CN202734373U - Heat pump air conditioner with defrosting function - Google Patents
Heat pump air conditioner with defrosting function Download PDFInfo
- Publication number
- CN202734373U CN202734373U CN 201220305557 CN201220305557U CN202734373U CN 202734373 U CN202734373 U CN 202734373U CN 201220305557 CN201220305557 CN 201220305557 CN 201220305557 U CN201220305557 U CN 201220305557U CN 202734373 U CN202734373 U CN 202734373U
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- heat exchanger
- valve
- air conditioner
- pipeline
- pump air
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
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Abstract
A heat pump air conditioner with a defrosting function comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a four-way reversing valve, a parallel pipeline of a check valve (4) and an auxiliary capillary (32) and a main capillary (31); the defrosting circulation system is also provided with a first bypass pipeline (510), one end of which is connected between the parallel pipeline of the check valve (4) and the auxiliary capillary (32) and the indoor heat exchanger and the other end of which is connected with an inlet (21) of the outdoor heat exchanger, and the middle of the first bypass pipeline (510) is provided with a first electromagnetic valve (82); the defrosting circulation system is also provided with a second bypass pipeline (220), one end of which is connected with an outlet (22) of the outdoor heat exchanger and the other end of which is connected with a return air inlet (12) of the compressor; and the pipeline of the four-way reversing valve and the outdoor heat exchanger is also provided with a second electromagnetic valve (81). The heat pump air conditioner can utilize the simple opening and closing of the first electromagnetic valve (82) and the second electromagnetic valve (81) to constantly supply heat when performing outdoor defrosting.
Description
Technical field
The utility model relates to a kind of heat pump air conditioner with defrost function, belongs to room air and regulates the field.
Background technology
Existing air-conditioning heat pump air-conditioning is that a kind of indoor temperature of regulating is to reach the device of user's actual need temperature, circulation and air circulation system by system's inner refrigerant carry out heat exchange to realize rising and the reduction of indoor temperature, reach the temperature that needs, for people provide comfortable indoor air environment.
As shown in Figure 1 and Figure 2, existing heat pump air conditioner comprises compressor, indoor heat exchanger, outdoor heat exchanger, four-way change-over valve 7, stop valve 1, stop valve 2 51, check valve 4, secondary capillary 32, main capillary 31.
As shown in Figure 1, during existing heat pump air conditioner heating mode operation, cold-producing medium is through compressor → four-way change-over valve 7 → stop valve one 52 → indoor heat exchanger → stop valve 2 51 → secondary capillary 32 → main capillary 31 → outdoor heat exchanger → four-way change-over valve 7 → compressor, and so forth circulation.
After existing heat pump air conditioner heated a period of time, the heat exchanger of off-premises station will be tied thick frost, had a strong impact on from air and absorbed heat, and heating effect is not good.At this moment, be with four-way change-over valve 7 commutation of heat pump air conditioner, so that heat pump air conditioner changes into refrigeration mode by heating mode, utilize the high temperature and high pressure gas heat release of compressor air-discharging to melt the thick frost of outdoor heat exchanger.As shown in Figure 2, the flow direction of cold-producing medium is compressor → four-way change-over valve 7 → outdoor heat exchanger → main capillary 31 → check valve 4 → stop valve 2 51 → indoor heat exchanger → stop valve one 52 → four-way change-over valve 7 → compressor, and so forth circulation.This shows, can not be to the indoor heat supply during the defrosting.In addition, in the time of four-way change-over valve 7 commutation, compressor need be shut down a few minutes, can not be to the indoor heat supply during this.Can affect indoor comfortableness when therefore, present heat pump air conditioner defrosts.
The utility model content
The utility model is to solve existing heat pump air conditioner can not be to the problem of indoor heat supply when defrosting.
For this reason, the utility model provides a kind of heat pump air conditioner with defrost function, comprise compressor, indoor heat exchanger, outdoor heat exchanger, four-way change-over valve, be connected with check valve and secondary parallel pipeline capillaceous, main capillary on the pipeline between indoor heat exchanger and outdoor heat exchanger, it is characterized in that: this defrosting circulating system also has bypass line one, the one end is connected between aforesaid check valve and secondary parallel pipeline capillaceous and indoor heat exchanger, its other end is connected to the import of outdoor heat exchanger, and the centre has magnetic valve one; This defrosting circulating system also has bypass line two, and the one end is connected to the outlet of outdoor heat exchanger, and its other end is connected to the gas returning port of compressor; On the pipeline of four-way change-over valve and outdoor heat exchanger, also be provided with magnetic valve two.
Heat pump air conditioner with defrost function of the present utility model, by increasing the two-way bypass line at existing heat pump air conditioner, and uninterrupted heat supply when utilizing the simple switching of magnetic valve and capillary that the adjusting of pressure flow is realized outdoor defrosting, it is simple that this system architecture has control, the advantages such as logic is simple are guaranteed the reliability of heat pump type air conditioning system.
For arriving more accurate control, the heat pump air conditioner with defrost function of the present utility model also can be provided with capillary on the bypass line two; Also can be provided with stop valve one on the pipeline between indoor heat exchanger and four-way change-over valve; Also can be provided with stop valve two between indoor heat exchanger and check valve and secondary parallel pipeline capillaceous.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is the schematic diagram of the heating recycle system of existing heat pump air conditioner, and arrow is depicted as the flow direction of cold-producing medium among the figure;
Fig. 2 is the schematic diagram of the defrosting circulating system of existing heat pump air conditioner, and arrow is depicted as the flow direction of cold-producing medium among the figure;
Fig. 3 is the schematic diagram of the defrosting circulating system of heat pump air conditioner of the present utility model, and arrow is depicted as the flow direction of cold-producing medium among the figure.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Among the embodiment as shown in Figure 3, heat pump air conditioner comprises compressor, indoor heat exchanger, outdoor heat exchanger, four-way change-over valve 7, stop valve 1, stop valve 2 51, check valve 4, secondary capillary 32, main capillary 31, capillary 33, magnetic valve 1, magnetic valve 2 81, bypass line 1, bypass line 2 220.Bypass line 1, bypass line 2 220 identify with thick line in the drawings.
Wherein, stop valve 1 is positioned on the pipeline of 7 of indoor heat exchanger and four-way change-over valves, and the parallel pipeline of stop valve 2 51, check valve 4 and secondary capillary 32 is positioned on the pipeline between indoor heat exchanger and outdoor heat exchanger.Bypass line one 510 one ends are connected on the pipeline of 2 51 of the parallel pipeline of aforesaid check valve 4 and secondary capillary 32 and stop valves, and its other end is connected to the import 21 of outdoor heat exchanger, and the centre has magnetic valve 1.Bypass line 2 220 1 ends are connected to the outlet 22 of outdoor heat exchanger, and its other end is connected to the gas returning port 12 of compressor, and the centre is provided with capillary 33.On the pipeline of four-way change-over valve and outdoor heat exchanger, also be provided with magnetic valve 2 81.
Open magnetic valve 2 81, shut electromagnetic valve 1, this heat pump air conditioner moves under heating mode, and its course of work is as follows:
Compressor is discharged the gas refrigerant of HTHP, and cold-producing medium flows to indoor heat exchanger through four-way change-over valve 7 and stop valve 52; Indoor air through with indoor heat exchanger in cold-producing medium carry out heat exchange, improve the temperature of indoor; The gas-liquid mixed attitude cold-producing medium that indoor heat exchanger exports out is the throttling cooling behind stop valve 51, secondary capillary 32, main capillary 31, the temperature of cold-producing medium is lower than the environment temperature of outside, cold-producing medium when the outdoor heat exchanger and the air of outside carry out heat exchange, then refrigerant flow direction compressor return air mouth 12, through compressor 1 compression, enter next circulation again.
This heat pump air conditioner is after operation a period of time, and outdoor heat exchanger is tied thick frost.At this moment, open magnetic valve 1, shut electromagnetic valve 2 81, this heat pump air conditioner course of work is as follows: the higher temperatures cold-producing medium that flows out from indoor heat exchanger outlet is divided into two-way behind stop valve 2 51; One the tunnel still enters outdoor heat exchanger through secondary capillary 32, main capillary 31, the temperature of cold-producing medium is lower than the environment temperature of outside, cold-producing medium when the outdoor heat exchanger and the air of outside carry out heat exchange, then refrigerant flow direction compressor return air mouth 12, through compressor 1 compression, enter next circulation again; Another road enters bypass line 1, directly enter outdoor heat exchange behind magnetic valve 1, melt the thick frost of outdoor heat exchanger with the heat of the higher cold-producing medium of temperature, cold-producing medium passes through capillary 33 throttlings on the bypass line 220 again, enter compressor, carry out next circulation.
As from the foregoing, this heat pump air conditioner can defrost in uninterrupted heat supply, has greatly strengthened the serviceability of air-conditioning.
More than be one of embodiment of the present utility model, for those skilled in the art, do not spend performing creative labour, on the basis of above-described embodiment, can do multiple variation, can realize the purpose of this utility model equally.But this variation obviously should be in the protection domain of claims of the present utility model.
Claims (2)
1. heat pump air conditioner with defrost function, comprise compressor, indoor heat exchanger, outdoor heat exchanger, four-way change-over valve, be connected with the parallel pipeline of check valve (4) and secondary capillary (32) on the pipeline between indoor heat exchanger and outdoor heat exchanger, main capillary (31), it is characterized in that: this defrosting circulating system also has bypass line one (510), the one end is connected between the parallel pipeline and indoor heat exchanger of aforesaid check valve (4) and secondary capillary (32), its other end is connected to the import (21) of outdoor heat exchanger, and the centre has magnetic valve one (82); This defrosting circulating system also has bypass line two (220), and the one end is connected to the outlet (22) of outdoor heat exchanger, and its other end is connected to the gas returning port (12) of compressor; On the pipeline of four-way change-over valve and outdoor heat exchanger, also be provided with magnetic valve two (81).
2. a kind of heat pump air conditioner with defrost function according to claim 1 is characterized in that: also be provided with capillary (33) on the above-mentioned bypass line two (220); Also be provided with stop valve one (52) on the pipeline between above-mentioned indoor heat exchanger and four-way change-over valve; Also be provided with stop valve two (51) between the parallel pipeline of above-mentioned indoor heat exchanger and check valve (4) and secondary capillary (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305557 CN202734373U (en) | 2012-06-28 | 2012-06-28 | Heat pump air conditioner with defrosting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305557 CN202734373U (en) | 2012-06-28 | 2012-06-28 | Heat pump air conditioner with defrosting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734373U true CN202734373U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305557 Expired - Fee Related CN202734373U (en) | 2012-06-28 | 2012-06-28 | Heat pump air conditioner with defrosting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072186A (en) * | 2016-11-14 | 2018-05-25 | 杭州三花研究院有限公司 | A kind of air-conditioning system |
| CN111237930A (en) * | 2020-02-18 | 2020-06-05 | 珠海格力电器股份有限公司 | Air conditioner, control method and device thereof, storage medium and processor |
-
2012
- 2012-06-28 CN CN 201220305557 patent/CN202734373U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072186A (en) * | 2016-11-14 | 2018-05-25 | 杭州三花研究院有限公司 | A kind of air-conditioning system |
| CN111237930A (en) * | 2020-02-18 | 2020-06-05 | 珠海格力电器股份有限公司 | Air conditioner, control method and device thereof, storage medium and processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170428 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Group. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20210628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |