CN204648732U - Air-conditioning refrigeration structure - Google Patents
Air-conditioning refrigeration structure Download PDFInfo
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- CN204648732U CN204648732U CN201520352326.0U CN201520352326U CN204648732U CN 204648732 U CN204648732 U CN 204648732U CN 201520352326 U CN201520352326 U CN 201520352326U CN 204648732 U CN204648732 U CN 204648732U
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Abstract
The utility model relates to a kind of air-conditioning refrigeration structure, comprise the evaporimeter, compressor and the gas-liquid separator that is connected between the air intake duct of described evaporimeter and compressor that are connected with air intake duct, described refrigeration structure also comprises pressure drop adjusting device, and described pressure drop adjusting device is connected to the air intake duct of described evaporimeter, compressor and gas-liquid separator respectively.The utility model carries out bypass by adding low pressure drop valve to gas-liquid separator, reduces the operational efficiency also improving unit while liquid phenomenon treated by compressor.
Description
Technical field
the utility model relates to a kind of refrigeration structure, particularly relates to a kind of refrigeration structure be used in air conditioner refrigerating.
Background technology
at present, the compressor that refrigeration structure for air-conditioning generally includes the evaporimeter being connected with air intake duct, the gas-liquid separator be connected with evaporimeter and is connected with gas-liquid separator, connect gas-liquid separator and can prevent compressor band liquid thus the reliability improving compressor, but also have influence on the operational efficiency of unit simultaneously because gas-liquid separator there is certain pressure drop.
Summary of the invention
the purpose of this utility model is to provide a kind of air-conditioning refrigeration structure, and this structure also improves the operational efficiency of unit while can reducing compressor band liquid phenomenon.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of air-conditioning refrigeration structure, comprise the evaporimeter, compressor and the gas-liquid separator that is connected between the air intake duct of described evaporimeter and compressor that are connected with air intake duct, described refrigeration structure also comprises pressure drop adjusting device, and described pressure drop adjusting device is connected to the air intake duct of described evaporimeter, compressor and gas-liquid separator respectively.
preferably, when described compressor air suction make a slip of the tongue temperature or discharge superheat lower than setting value time: cold-producing medium enters described compressor through the air intake duct of described evaporimeter, pressure drop adjusting device, gas-liquid separator; When described compressor air suction make a slip of the tongue temperature or the exhaust outlet degree of superheat exceed setting value time: cold-producing medium enters described compressor through the air intake duct of described evaporimeter, pressure drop adjusting device.
preferably, described pressure drop adjusting device comprises cross valve, and the first interface of described cross valve, the second interface, the 3rd interface connect the air intake duct of described evaporimeter, gas-liquid separator and compressor respectively, and the 4th interface of described cross valve is closed.
preferably, described pressure drop adjusting device comprises triple valve, and the first interface of described triple valve, the second interface, the 3rd interface connect the air intake duct of described evaporimeter, gas-liquid separator and compressor respectively.
preferably, described pressure drop adjusting device comprises the first magnetic valve and the second magnetic valve, between the air intake duct that the first described magnetic valve is connected to described evaporimeter and gas-liquid separator, between the air intake duct that the second described magnetic valve is connected to described evaporimeter and compressor.
further preferably, the second described magnetic valve is pressure drop magnetic valve.
preferably, oil return pipe is connected with between described compressor and gas-liquid separator.
because technique scheme is used, the utility model compared with prior art has following advantages:
the utility model carries out bypass by adding pressure drop adjusting device to gas-liquid separator, also improves the operational efficiency of unit while reducing compressor band liquid phenomenon.
Accompanying drawing explanation
accompanying drawing 1 is the connection diagram of embodiment one;
accompanying drawing 2 is the connection diagram of embodiment two;
accompanying drawing 3 is the connection diagram of embodiment three.
wherein: 1, evaporimeter; 2, compressor; 3, gas-liquid separator; 40, cross valve; 41, triple valve; 42, the first magnetic valve; 43, the second magnetic valve; 5, oil return pipe; 6, tube connector.
Detailed description of the invention
below in conjunction with drawings and Examples, the utility model is further described:
embodiment one:
a kind of air-conditioning refrigeration structure as shown in Figure 1, comprise connect the evaporimeter 1 of air intake duct, compressor 2 and be connected between the air intake duct of evaporimeter 1 and compressor 2 gas-liquid separator 3.In the present embodiment: refrigeration structure also comprises pressure drop cross valve 40, first interface 401, second interface 402 of cross valve 40, the 3rd interface 403 connect the air intake duct of evaporimeter 1, gas-liquid separator 3 and compressor 2 respectively, and the 4th interface 404 i.e. air entry of cross valve 40 is closed.
when band liquid phenomenon may appear in compressor 2 in the handoff procedure of start-up course, pattern, the band liquid of compressor 2 now can be reduced by the control of cross valve 40.When compressor start, unit pattern switch, compressor air suction make a slip of the tongue temperature or discharge superheat lower than setting value time: first interface 401, second interface 402 of cross valve 40 is opened, the 3rd interface 403 is closed, and cold-producing medium enters compressor 2 by gas-liquid separator 3; When unit operation is under non-(completing) startup and pattern switch instances, when the air entry degree of superheat of compressor or the exhaust outlet degree of superheat exceed setting value: first interface 401, the 3rd interface 403 of cross valve 40 are opened, the second interface 402 is closed, and cold-producing medium enters compressor 2 by bypass line.
in addition, little internal diameter oil return pipe 5 is connected with between compressor 2 and gas-liquid separator 3, oil return pipe 5 flows into compressor 2 for allowing the refrigerant liquid bottom gas-liquid separator 3 and oil, return the circulatory system, work when evaporimeter 1 is communicated with gas-liquid separator 3, when evaporimeter 1 is directly communicated with compressor 2, oil return pipe 5 is inoperative.Between gas-liquid separator 3 and compressor, be also connected with tube connector 6, tube connector adopts footpath at a gulp pipeline, allows gas flow warp, and relative oil return pipe 5 is small-bore pipelines, allows fluid flow through.
embodiment two:
a kind of air-conditioning refrigeration structure as shown in Figure 2, comprise connect the evaporimeter 1 of air intake duct, compressor 2 and be connected between the air intake duct of evaporimeter 1 and compressor 2 gas-liquid separator 3.In the present embodiment: refrigeration structure also comprises pressure drop triple valve 41, first interface 410, second interface 411 of triple valve 41, the 3rd interface 412 connect the air intake duct of evaporimeter 1, gas-liquid separator 3 and compressor 2 respectively.
when band liquid phenomenon may appear in compressor 2 in the handoff procedure of start-up course, pattern, the band liquid of compressor 2 now can be reduced by the control of cross valve 40.When compressor start, unit pattern switch, compressor air suction make a slip of the tongue temperature or discharge superheat lower than setting value time: first interface 411, second interface 412 of triple valve 41 is opened, the 3rd interface 413 is closed, and cold-producing medium enters compressor 2 by gas-liquid separator 3; When unit operation is under non-(completing) startup and pattern switch instances, when the air entry degree of superheat of compressor or the exhaust outlet degree of superheat exceed setting value: first interface 401, the 3rd interface 413 of triple valve 41 are opened, the second interface 412 is closed, and cold-producing medium enters compressor 2 by bypass line.
in addition, little internal diameter oil return pipe 5 is connected with between compressor 2 and gas-liquid separator 3, oil return pipe 5 flows into compressor 2 for allowing the refrigerant liquid bottom gas-liquid separator 3 and oil, return the circulatory system, work when evaporimeter 1 is communicated with gas-liquid separator 3, when evaporimeter 1 is directly communicated with compressor 2, oil return pipe 5 is inoperative.Between gas-liquid separator 3 and compressor, be also connected with tube connector 6, tube connector adopts footpath at a gulp pipeline, allows gas flow warp, and relative oil return pipe 5 is small-bore pipelines, allows fluid flow through.
embodiment three:
a kind of air-conditioning refrigeration structure as shown in Figure 3, comprise connect the evaporimeter 1 of air intake duct, compressor 2 and be connected between the air intake duct of evaporimeter 1 and compressor 2 gas-liquid separator 3.In the present embodiment: what refrigeration structure also comprised the first magnetic valve 42 and the second magnetic valve 43, second magnetic valve also can be common pressure drop magnetic valve.First magnetic valve 42 is connected between the air intake duct of evaporimeter 1 and gas-liquid separator 3, and the second magnetic valve 43 is connected between the air intake duct of evaporimeter 1 and compressor 2.
when band liquid phenomenon may appear in compressor 2 in the handoff procedure of start-up course, pattern, the band liquid of compressor 2 now can be reduced by the control of cross valve 40.When compressor start, unit pattern switch, compressor air suction make a slip of the tongue temperature or discharge superheat lower than setting value time: the first magnetic valve 42 is opened, the second magnetic valve 43 cuts out, and cold-producing medium enters compressor 2 by gas-liquid separator 3; When unit operation is under non-(completing) startup and pattern switch instances, when the air entry degree of superheat of compressor or the exhaust outlet degree of superheat exceed setting value: the second magnetic valve 43 is opened, the first magnetic valve 42 cuts out, and cold-producing medium enters compressor 2 by bypass line.
in addition, little internal diameter oil return pipe 5 is connected with between compressor 2 and gas-liquid separator 3, oil return pipe 5 flows into compressor 2 for allowing the refrigerant liquid bottom gas-liquid separator 3 and oil, return the circulatory system, work when evaporimeter 1 is communicated with gas-liquid separator 3, when evaporimeter 1 is directly communicated with compressor 2, oil return pipe 5 is inoperative.Between gas-liquid separator 3 and compressor, be also connected with tube connector 6, tube connector adopts footpath at a gulp pipeline, allows gas flow warp, and relative oil return pipe 5 is small-bore pipelines, allows fluid flow through.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (7)
1. an air-conditioning refrigeration structure, comprise the evaporimeter, compressor and the gas-liquid separator that is connected between the air intake duct of described evaporimeter and compressor that are connected with air intake duct, it is characterized in that: described refrigeration structure also comprises pressure drop adjusting device, described pressure drop adjusting device is connected to the air intake duct of described evaporimeter, compressor and gas-liquid separator respectively.
2. air-conditioning refrigeration structure according to claim 1, is characterized in that: when described compressor air suction make a slip of the tongue temperature or discharge superheat lower than setting value time: cold-producing medium enters described compressor through the air intake duct of described evaporimeter, pressure drop adjusting device, gas-liquid separator; When described compressor air suction make a slip of the tongue temperature or the exhaust outlet degree of superheat exceed setting value time: cold-producing medium enters described compressor through the air intake duct of described evaporimeter, pressure drop adjusting device.
3. air-conditioning refrigeration structure according to claim 1 and 2, it is characterized in that: described pressure drop adjusting device comprises cross valve, the first interface of described cross valve, the second interface, the 3rd interface connect the air intake duct of described evaporimeter, gas-liquid separator and compressor respectively, and the 4th interface of described cross valve is closed.
4. air-conditioning refrigeration structure according to claim 1 and 2, it is characterized in that: described pressure drop adjusting device comprises triple valve, the first interface of described triple valve, the second interface, the 3rd interface connect the air intake duct of described evaporimeter, gas-liquid separator and compressor respectively.
5. air-conditioning refrigeration structure according to claim 1 and 2, it is characterized in that: described pressure drop adjusting device comprises the first magnetic valve and the second magnetic valve, between the air intake duct that the first described magnetic valve is connected to described evaporimeter and gas-liquid separator, between the air intake duct that the second described magnetic valve is connected to described evaporimeter and compressor.
6. air-conditioning refrigeration structure according to claim 5, is characterized in that: the second described magnetic valve is pressure drop magnetic valve.
7. air-conditioning refrigeration structure according to claim 1, is characterized in that: be connected with oil return pipe between described compressor and gas-liquid separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520352326.0U CN204648732U (en) | 2015-05-28 | 2015-05-28 | Air-conditioning refrigeration structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520352326.0U CN204648732U (en) | 2015-05-28 | 2015-05-28 | Air-conditioning refrigeration structure |
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| CN204648732U true CN204648732U (en) | 2015-09-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642790A (en) * | 2016-12-26 | 2017-05-10 | 广东美的制冷设备有限公司 | Air-conditioning system and control method |
| CN107461843A (en) * | 2017-07-05 | 2017-12-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN109654636A (en) * | 2018-12-29 | 2019-04-19 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning system and control method improving Smaller load operation refrigerating capacity |
| CN114061183A (en) * | 2021-11-08 | 2022-02-18 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
-
2015
- 2015-05-28 CN CN201520352326.0U patent/CN204648732U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642790A (en) * | 2016-12-26 | 2017-05-10 | 广东美的制冷设备有限公司 | Air-conditioning system and control method |
| CN107461843A (en) * | 2017-07-05 | 2017-12-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN109654636A (en) * | 2018-12-29 | 2019-04-19 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning system and control method improving Smaller load operation refrigerating capacity |
| CN109654636B (en) * | 2018-12-29 | 2020-09-01 | 广东志高暖通设备股份有限公司 | Air conditioning system for improving small-load operation refrigerating capacity and control method |
| CN114061183A (en) * | 2021-11-08 | 2022-02-18 | 珠海格力电器股份有限公司 | Air conditioning unit and control method thereof |
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