CN203719269U - Refrigerating unit and heat pump unit - Google Patents
Refrigerating unit and heat pump unit Download PDFInfo
- Publication number
- CN203719269U CN203719269U CN201420097151.9U CN201420097151U CN203719269U CN 203719269 U CN203719269 U CN 203719269U CN 201420097151 U CN201420097151 U CN 201420097151U CN 203719269 U CN203719269 U CN 203719269U
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- Prior art keywords
- compressor
- heat pump
- unit
- pressure
- exhaust port
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- Expired - Lifetime
Links
- 238000005057 refrigeration Methods 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 206010008469 Chest discomfort Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a refrigerating unit and a heat pump unit. The refrigerating unit/heat pump unit comprises a compressor, a condenser, a throttling gear, an evaporator and a control system, wherein a pressure release pipeline is additionally arranged between an exhaust end of the compressor of the refrigerating unit/heat pump unit and a return end of the refrigerating unit/heat pump unit; a pressure release solenoid valve is arranged on the pressure release pipeline; when the refrigerating unit/heat pump unit stops, the pressure release solenoid valve is opened for seconds to release the pressure, and before the refrigerating unit/heat pump unit is started again, the pressure release solenoid valve is opened for seconds to release the pressure, so that the refrigerating unit/heat pump unit is prevented from being started with pressure after being stopped and started again, the refrigerating unit/heat pump unit is effectively protected, and the starting capability of the refrigerating unit/heat pump unit is improved. The refrigerating unit and the heat pump unit are particularly applicable to places with relatively low voltage, and the starting power is reduced by about 60%.
Description
Technical field
The utility model relates to a kind of refrigeration unit and source pump.
Background technology
Refrigeration unit and source pump are widely used on the product such as refrigerator-freezer, air-conditioning.Common refrigeration unit comprises compressor, condenser, reservoir, evaporimeter, throttling arrangement, gas-liquid separator and control system etc., throttling arrangement is installed between reservoir and evaporimeter conventionally, the liquid refrigerant of middle temperature high pressure becomes the moist steam of low-temp low-pressure by throttling arrangement throttling, then cold-producing medium absorbs heat and reaches refrigeration in evaporimeter.After compressor shutdown, the liquid refrigerant of middle temperature high pressure cannot throttling becomes the moist steam of low-temp low-pressure, causes compressor high pressure chest inside to have high-pressure gas refrigerant.In the time that compressor starts again, due to the existence of high pressure chest internal high pressure gas refrigerant, make compressor band pressure-activated, starting power is large, and easily compressor electric motor is caused damage.In actual applications, also there is the problem identical with refrigeration unit in source pump.
Utility model content
For the above-mentioned technical problem existing in prior art; the utility model proposes a kind of refrigeration unit; between the exhaust port side of refrigeration unit compressor and the gas returning port end of refrigeration unit compressor, set up a pressure release path; for startup not with pressure, be beneficial to the starting power of reduction refrigeration unit compressor when ensureing again to start after refrigeration unit compressor shutdown.
To achieve these goals, the utility model adopts following technical scheme:
A kind of refrigeration unit, comprise compressor, condenser, throttling arrangement, evaporimeter and control system, the exhaust port side of compressor is connected with the refrigerant inlet end of condenser by a pipeline, between the gas returning port end of the exhaust port side of described compressor and compressor, be provided with a pressure relief pipe, on pressure relief pipe, be provided with pressure release electromagnetic valve.
Further, on the pipeline between the refrigerant inlet end of the exhaust port side at compressor and condenser, be provided with check valve; One end of pressure relief pipe is connected on gas returning port end, and the other end of pressure relief pipe is linked on the pipeline between the exhaust port side of compressor and the refrigerant inlet end of condenser by a threeway, and threeway is positioned at check valve upstream.
The purpose of this utility model is also to propose a kind of source pump; between the exhaust port side of source pump compressor and the gas returning port end of source pump compressor, set up a pressure release path; for startup not with pressure, be beneficial to the starting power of reduction source pump compressor when ensureing again to start after source pump compressor shutdown.
To achieve these goals, the utility model adopts following technical scheme:
A kind of source pump, comprise compressor, condenser, throttling arrangement, evaporimeter and control system, between compressor and condenser, evaporimeter, be provided with four-way change-over valve, the exhaust port side of compressor is connected with the entrance point of four-way change-over valve by a pipeline, between the gas returning port end of the exhaust port side of described compressor and compressor, be provided with a pressure relief pipe, on pressure relief pipe, be provided with pressure release electromagnetic valve.
Further, on the pipeline between the exhaust port side at compressor and the entrance point of four-way change-over valve, be provided with check valve; One end of pressure relief pipe is connected on gas returning port end, and the other end of pressure relief pipe is linked on the pipeline between the exhaust port side of compressor and the entrance point of four-way change-over valve by a threeway, and threeway is positioned at check valve upstream.
The utility model has the advantages that:
The refrigeration unit that the utility model is addressed and source pump, between the exhaust port side of refrigerating/heat pump machine set compressor and the gas returning port end of refrigerating/heat pump machine set compressor, set up a pressure relief pipe, on pressure relief pipe, be provided with pressure release electromagnetic valve, after refrigerating/heat pump machine set compressor is shut down, pressure release electromagnetic valve is opened the several seconds and is carried out pressure release, before refrigerating/heat pump machine set compressor starts again, pressure release electromagnetic valve is opened the several seconds and is carried out pressure release, prevent refrigerating/heat pump machine set compressor shut down after while again starting be with pressure-activated, effectively protection refrigerating/heat pump machine set compressor motor, and be beneficial to the startup ability that improves refrigerating/heat pump machine set compressor.The utility model is especially applicable in the place of low voltage, and starting power reduces approximately 60%.
Brief description of the drawings
Fig. 1 is the structural representation of source pump in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
Embodiment 1
Shown in Fig. 1, a kind of source pump, comprises compressor 1, condenser 2, throttling arrangement 3, evaporimeter 4 and control system.Between compressor 1 and condenser 2, evaporimeter 4, be provided with four-way change-over valve 5.The exhaust port side 101 of compressor 1 is connected with the entrance point 501 of four-way change-over valve 5 by a pipeline 6.Between the exhaust port side 101 of compressor 1 and the gas returning port end 102 of compressor 1, be provided with a pressure relief pipe 7, on pressure relief pipe 7, be provided with pressure release electromagnetic valve 701.After compressor 1 is shut down; pressure release electromagnetic valve 701 is opened the several seconds and is carried out pressure release; before compressor 1 starts again; pressure release electromagnetic valve 701 is opened the several seconds and is carried out pressure release; to keep the exhaust port side 101 of compressor 1 and the air pressure balance at gas returning port end 102 places of compressor 1; be beneficial to the startup not with pressure that realizes compressor 1, effectively protect compressor electric motor, and improved startup ability.
Preferably, on the pipeline between the exhaust port side 101 at compressor 1 and the entrance point 501 of four-way change-over valve 5, be provided with check valve 8; One end of pressure relief pipe 7 is connected on the gas returning port end 102 of compressor 1, and the other end of pressure relief pipe 7 is linked on pipeline 6 by a threeway 9, and the direction of moving towards along cold-producing medium between the each parts of source pump sees, threeway 9 is positioned at check valve 8 upstreams.Check valve 8 can ensure that in pressure leak process, the cold-producing medium in condenser 2 there will not be backflow phenomenon.
Embodiment 2
With reference to figure 1, refrigeration unit and source pump difference structurally is mainly that source pump comprises four-way change-over valve 5, and the flow direction of utilizing this four-way change-over valve 5 to change cold-producing medium realizes indoor refrigeration or heat, and all the other structures and principle are basic identical.Below the main improvement of refrigeration unit is described:
A kind of refrigeration unit, comprises compressor, condenser, throttling arrangement, evaporimeter and control system.The exhaust port side of compressor is connected with the refrigerant inlet end of condenser by a pipeline.Between the gas returning port end of the exhaust port side of compressor and compressor, be provided with a pressure relief pipe, on pressure relief pipe, be provided with pressure release electromagnetic valve.When after compressor shutdown; pressure release electromagnetic valve is opened the several seconds and is carried out pressure release; before compressor starts again; pressure release electromagnetic valve is opened the several seconds and is carried out pressure release; keep the air pressure balance at the exhaust port side of compressor and the gas returning port end place of compressor; be beneficial to the startup not with pressure that realizes compressor, effectively protect compressor electric motor, and improved startup ability.
Preferably, on the pipeline between the refrigerant inlet end of the exhaust port side at compressor and condenser, be provided with check valve; One end of pressure relief pipe is connected on gas returning port end, the other end of pressure relief pipe is linked on the pipeline between the exhaust port side of compressor and the refrigerant inlet end of condenser by a threeway, the direction of moving towards along cold-producing medium between the each parts of source pump sees, threeway is positioned at check valve upstream.Check valve can ensure that in pressure leak process, the cold-producing medium in condenser there will not be backflow phenomenon.
Certainly; more than explanation is only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this description; that makes is allly equal to alternative, obvious form of distortion, within all dropping on the essential scope of this description, ought to be subject to protection of the present utility model.
Claims (4)
1. a refrigeration unit, comprise compressor, condenser, throttling arrangement, evaporimeter and control system, the exhaust port side of compressor is connected with the refrigerant inlet end of condenser by a pipeline, it is characterized in that, between the gas returning port end of the exhaust port side of described compressor and compressor, be provided with a pressure relief pipe, on pressure relief pipe, be provided with pressure release electromagnetic valve.
2. a kind of refrigeration unit according to claim 1, is characterized in that, on the pipeline between the refrigerant inlet end of the exhaust port side at compressor and condenser, is provided with check valve; One end of pressure relief pipe is connected on gas returning port end, and the other end of pressure relief pipe is linked on the pipeline between the exhaust port side of compressor and the refrigerant inlet end of condenser by a threeway, and threeway is positioned at check valve upstream.
3. a source pump, comprise compressor, condenser, throttling arrangement, evaporimeter and control system, between compressor and condenser, evaporimeter, be provided with four-way change-over valve, the exhaust port side of compressor is connected with the entrance point of four-way change-over valve by a pipeline, it is characterized in that, between the gas returning port end of the exhaust port side of described compressor and compressor, be provided with a pressure relief pipe, on pressure relief pipe, be provided with pressure release electromagnetic valve.
4. a kind of source pump according to claim 3, is characterized in that, on the pipeline between the exhaust port side at compressor and the entrance point of four-way change-over valve, is provided with check valve; One end of pressure relief pipe is connected on gas returning port end, and the other end of pressure relief pipe is linked on the pipeline between the exhaust port side of compressor and the entrance point of four-way change-over valve by a threeway, and threeway is positioned at check valve upstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097151.9U CN203719269U (en) | 2014-03-05 | 2014-03-05 | Refrigerating unit and heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097151.9U CN203719269U (en) | 2014-03-05 | 2014-03-05 | Refrigerating unit and heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719269U true CN203719269U (en) | 2014-07-16 |
Family
ID=51158416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420097151.9U Expired - Lifetime CN203719269U (en) | 2014-03-05 | 2014-03-05 | Refrigerating unit and heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203719269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256386A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Compressor and refrigerating system |
-
2014
- 2014-03-05 CN CN201420097151.9U patent/CN203719269U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256386A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Compressor and refrigerating system |
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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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210713 Address after: 266400 Room 401, unit 2, building 3, 98 Yimin lane, Huangdao District, Qingdao City, Shandong Province Patentee after: Han Jun Address before: 266400 Room 401, unit 2, building 3, No. 136, Dongfeng Road, Huangdao District, Qingdao City, Shandong Province Patentee before: Han Shaofang |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |