CN220417716U - Piston parallel compression condensing unit - Google Patents
Piston parallel compression condensing unit Download PDFInfo
- Publication number
- CN220417716U CN220417716U CN202322272889.6U CN202322272889U CN220417716U CN 220417716 U CN220417716 U CN 220417716U CN 202322272889 U CN202322272889 U CN 202322272889U CN 220417716 U CN220417716 U CN 220417716U
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- compressor
- pipeline
- liquid
- oil return
- unit
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- 238000007906 compression Methods 0.000 title claims abstract description 19
- 230000006835 compression Effects 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 239000003507 refrigerant Substances 0.000 claims description 26
- 230000035939 shock Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 238000010977 unit operation Methods 0.000 abstract description 2
- 238000005057 refrigeration Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013526 supercooled liquid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model provides a piston parallel compression condensing unit which comprises a compressor unit, wherein the compressor unit is connected with an oil separator through a first exhaust pipeline and a total oil return pipeline respectively, the oil separator is connected with a condenser through a second exhaust pipeline, the condenser is connected with an evaporator through a first liquid discharge pipeline, the evaporator is connected with a gas-liquid separator through a first air suction pipeline, and the gas-liquid separator is connected with the compressor unit through a second air suction pipeline; the total oil return pipeline is sequentially provided with a first ball valve, a first filter and a first liquid viewing mirror. The first ball valve is arranged at one side close to the oil separator. The device ensures good oil return capacity in unit operation and avoids oil shortage of the compressor by arranging the oil return branch pipe and the total oil return pipeline between the oil separator and the compressor.
Description
Technical Field
The utility model belongs to the technical field of air conditioner refrigeration, and particularly relates to a piston parallel compression condensing unit.
Background
The refrigerating system is a closed system which is formed by a compressor, a condenser, a throttling device, an evaporator and other auxiliary equipment, a proper amount of refrigerant is filled in the closed system, the refrigerant is compressed into high-temperature high-pressure gas in the compressor, the high-temperature high-pressure gas is converted into high-temperature high-pressure liquid in the condenser and emits heat, the high-temperature high-pressure liquid is converted into low-temperature low-pressure liquid in the throttling device, the low-temperature low-pressure liquid is converted into low-temperature low-pressure gas in the evaporator and absorbs heat, and the refrigerant flowing out of the evaporator returns to a low-pressure cavity of the compressor to complete a complete refrigerating cycle, so that the aim of refrigerating or heating is fulfilled, and the compressor has the oil shortage phenomenon, so that the unit cannot safely and stably run.
Disclosure of Invention
In view of the above, the utility model aims to provide a piston parallel compression condensing unit so as to solve the problem that the unit cannot safely and stably operate due to the phenomenon of oil shortage of a compressor.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
the piston parallel compression condensing unit comprises a compressor unit, wherein the compressor unit is connected with an oil separator through a first exhaust pipeline and a total oil return pipeline respectively, the oil separator is connected with a condenser through a second exhaust pipeline, the condenser is connected with an evaporator through a first liquid discharge pipeline, the evaporator is connected with a gas-liquid separator through a first air suction pipeline, and the gas-liquid separator is connected with the compressor unit through a second air suction pipeline;
the total oil return pipeline is sequentially provided with a first ball valve, a first filter and a first liquid viewing mirror.
The first ball valve is arranged at one side close to the oil separator.
Further, the compressor unit comprises a first compressor, a second compressor, a third compressor and a refrigerant gas collecting pipe which are respectively connected with the first compressor, the second compressor and the third compressor through a first compressor gas suction pipeline, a second compressor gas suction pipeline and a third compressor gas suction pipeline.
The first compressor, the second compressor and the third compressor are respectively connected with the first exhaust pipeline through the first compressor exhaust pipeline, the second compressor exhaust pipeline and the third compressor exhaust pipeline;
the first compressor, the second compressor and the third compressor are connected in parallel through three oil return branch pipes and are connected with a total oil return pipeline.
Further, the first compressor suction pipeline, the second compressor suction pipeline and the third compressor suction pipeline are sequentially provided with a second ball valve, a second filter and a first shock absorber.
Further, the first compressor exhaust pipeline, the second compressor exhaust pipeline and the third compressor exhaust pipeline are provided with second shock tubes.
Further, the oil return branch pipes are all provided with third ball valves.
Further, a third filter, a liquid pipe electromagnetic valve and a liquid pipe electronic expansion valve are sequentially arranged on the first liquid discharge pipeline, and the third filter is arranged on one side close to the condenser.
Further, a detection branch pipe is arranged on the first liquid discharge pipe, two ends of the detection branch pipe are connected with the first liquid discharge pipe, and a second liquid viewing mirror is arranged on the detection branch pipe.
Compared with the prior art, the piston parallel compression condensing unit has the following advantages:
1. the device avoids the problem of pipeline fracture caused by deformation in the running process of the unit by distributing the shock tubes on the air suction and exhaust pipelines;
2. the filter is arranged on the first compressor air suction pipeline, the second compressor air suction pipeline and the third compressor air suction pipeline, so that the cleanliness of the refrigerant can be effectively ensured, the compressors are protected, and the safe and stable operation of the unit is ensured.
3. The device ensures good oil return capacity in unit operation and avoids oil shortage of the compressor by arranging the oil return branch pipe and the total oil return pipeline between the oil separator and the compressor.
4. The device ensures the smooth operation of the complete refrigeration process by arranging the liquid electromagnetic valve and the liquid electronic expansion valve on the liquid pipeline between the condenser and the evaporator.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic diagram of a piston parallel compression condensing unit according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a first compressor; 2. a second compressor; 3. a third compressor; 4. an oil separator; 5. a condenser; 6. an evaporator; 7. a gas-liquid separator; 8. a refrigerant gas collecting tube; 9. a first compressor discharge line; 10. a second compressor discharge line; 11. a third compressor discharge line; 12. a first exhaust line; 13. a second exhaust line; 14. a first drain line; 15. a first suction line; 16. a second suction line; 17. a first compressor suction line; 18. a second compressor suction line; 19. a third compressor suction line; 20. a total oil return pipeline; 21. a liquid pipe electromagnetic valve; 22. a liquid pipe electronic expansion valve; 23. an oil return branch pipe; 24. a first ball valve; 25. a first filter; 26. a first liquid viewing mirror; 27. a second ball valve; 28. a second filter; 29. a first shock tube; 30. a second shock tube; 31. a third ball valve; 32. a third filter; 33. and a second liquid viewing mirror.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, a piston parallel compression condensing unit comprises a compressor unit, wherein the compressor unit is connected with an oil separator 4 through a first exhaust pipeline 12 and a total oil return pipeline 20 respectively, the oil separator 4 is connected with a condenser 5 through a second exhaust pipeline 13, the condenser 5 is connected with an evaporator 6 through a first liquid discharge pipeline 14, the evaporator 6 is connected with a gas-liquid separator through a first air suction pipeline 15, and the gas-liquid separator is connected with the compressor unit through a second air suction pipeline 16; the total oil return pipeline is sequentially provided with a first ball valve 24, a first filter 25 and a first liquid viewing mirror 26. The first ball valve 24 is provided on a side close to the oil separator 4. A second ball valve 27, a second filter 28 and a first shock tube 29 are arranged on the independent air suction pipe of each compressor, the shock tube can cope with the deformation on the air suction pipe, and the filter can ensure the cleanliness of the return refrigerant. The exhaust pipelines of the compressors of the piston parallel compression condensing unit are integrated into a total exhaust pipeline, the total exhaust pipeline enters the oil separator 4, a refrigerant collecting pipe 8 assembly is arranged and is used as an air suction collecting pipe, low-temperature low-pressure gaseous refrigerant is evenly divided according to the number of the compressors through the refrigerant collecting pipe 8 assembly, and then the low-temperature low-pressure gaseous refrigerant enters the independent air suction pipelines of the compressors. Above-mentioned compression condensing unit draws oil from oil separator 4 oil return opening, and through first ball valve 24, first filter 25 and first sight glass 26 in proper order, shunts according to the compressor number after looking the sight glass, finally in discharging the frozen oil back to the compressor in the oil separator 4, guarantee that the compressor does not appear lacking the oily phenomenon, make the unit can safe and stable operation.
The compressor unit comprises a first compressor 1, a second compressor 2, a third compressor 3 and a refrigerant gas collecting tube 8 which are respectively connected with the first compressor 1, the second compressor 2 and the third compressor 3 through a first compressor suction pipeline 17, a second compressor suction pipeline 18 and a third compressor suction pipeline 19. The first compressor 1, the second compressor 2 and the third compressor 3 are respectively connected with a first exhaust pipeline 12 through a first compressor exhaust pipeline 9, a second compressor exhaust pipeline 10 and a third compressor exhaust pipeline 11; the first compressor 1, the second compressor 2 and the third compressor 3 are connected in parallel through three oil return branch pipes 23 and are connected with a total oil return pipeline 20.
The first compressor suction line 17, the second compressor suction line 18, and the third compressor suction line 19 are each provided with a second ball valve 27, a second filter 28, and a first shock absorber 29 in this order. The first compressor discharge line 9, the second compressor discharge line 10 and the third compressor discharge line 11 are provided with a second shock absorber 30. The oil return branch pipes 23 are provided with third ball valves 31.
The first drain line 14 is provided with a third filter 32, a liquid pipe solenoid valve 21, and a liquid pipe electronic expansion valve 22 in this order, and the third filter 32 is provided on a side close to the condenser 5. The first liquid discharge pipeline 14 is provided with a detection branch pipe, both ends of the detection branch pipe are connected with the first liquid discharge pipeline 14, and the detection branch pipe is provided with a second liquid viewing mirror 33.
The high-temperature high-pressure gaseous refrigerant discharged from each compressor is gathered to the total exhaust pipe in turn, enters the oil separator 4 through the total exhaust pipe, after the separation of the refrigerant and the frozen oil in the oil separator 4, the high-temperature high-pressure gaseous refrigerant enters the condenser 5, the refrigerant is condensed and releases heat in the condenser 5, the high-temperature high-pressure gas is converted into a high-temperature high-pressure supercooled liquid state, the high-temperature high-pressure supercooled liquid state refrigerant flowing out of the condenser 5 is throttled by the electronic expansion valve and then is converted into a low-temperature low-pressure liquid state refrigerant, and then enters the evaporator 6, the refrigerant absorbs heat in the evaporator 6 and is changed into a gas state from a liquid state. The gaseous refrigerant flowing out of the evaporator 6 enters the gas-liquid separator 7, and after being separated, enters the refrigerant header 8 assembly. The gaseous refrigerant is fully filled in the refrigerant gas collecting pipe 8 and is uniformly distributed to each compressor through an independent gas suction pipe of each compressor, and the compression process of the refrigerant is carried out in the compressors to form the gaseous refrigerant with high temperature and high pressure, thus forming a complete refrigeration cycle. The frozen oil separated by the oil separator 4 returns to each compressor in turn through an oil return pipeline, so that a good oil return effect is ensured.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a piston parallel compression condensing unit which characterized in that: the device comprises a compressor unit, wherein the compressor unit is connected with an oil separator (4) through a first exhaust pipeline (12) and a total oil return pipeline (20), the oil separator (4) is connected with a condenser (5) through a second exhaust pipeline (13), the condenser (5) is connected with an evaporator (6) through a first liquid discharge pipeline (14), the evaporator (6) is connected with a gas-liquid separator (7) through a first air suction pipeline (15), and the gas-liquid separator (7) is connected with the compressor unit through a second air suction pipeline (16);
a first ball valve (24), a first filter (25) and a first liquid-viewing mirror (26) are sequentially arranged on the total oil return pipeline (20);
the first ball valve (24) is arranged on one side close to the oil separator (4).
2. The piston parallel compression condensing unit of claim 1, wherein: the compressor unit comprises a first compressor (1), a second compressor (2), a third compressor (3) and a refrigerant gas collecting tube (8), and is connected with the first compressor (1), the second compressor (2) and the third compressor (3) through a first compressor gas suction pipeline (17), a second compressor gas suction pipeline (18) and a third compressor gas suction pipeline (19) respectively;
the first compressor (1), the second compressor (2) and the third compressor (3) are respectively connected with the first exhaust pipeline (12) through the first compressor exhaust pipeline (9), the second compressor exhaust pipeline (10) and the third compressor exhaust pipeline (11);
the first compressor (1), the second compressor (2) and the third compressor (3) are connected in parallel through three oil return branch pipes (23) and are connected with a total oil return pipeline (20).
3. The piston parallel compression condensing unit of claim 2, wherein: the first compressor suction pipeline (17), the second compressor suction pipeline (18) and the third compressor suction pipeline (19) are sequentially provided with a second ball valve (27), a second filter (28) and a first shock absorber (29).
4. The piston parallel compression condensing unit of claim 2, wherein: the first compressor exhaust pipeline (9), the second compressor exhaust pipeline (10) and the third compressor exhaust pipeline (11) are provided with a second shock absorber pipe (30).
5. The piston parallel compression condensing unit of claim 1, wherein: the oil return branch pipes (23) are provided with third ball valves (31).
6. The piston parallel compression condensing unit of claim 1, wherein: the first liquid discharge pipeline (14) is sequentially provided with a third filter (32), a liquid pipe electromagnetic valve (21) and a liquid pipe electronic expansion valve (22), and the third filter (32) is arranged on one side close to the condenser (5).
7. The piston parallel compression condensing unit of claim 1, wherein: the first liquid discharge pipeline (14) is provided with a detection branch pipe, two ends of the detection branch pipe are connected with the first liquid discharge pipeline (14), and the detection branch pipe is provided with a second liquid viewing mirror (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322272889.6U CN220417716U (en) | 2023-08-23 | 2023-08-23 | Piston parallel compression condensing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322272889.6U CN220417716U (en) | 2023-08-23 | 2023-08-23 | Piston parallel compression condensing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220417716U true CN220417716U (en) | 2024-01-30 |
Family
ID=89641922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322272889.6U Active CN220417716U (en) | 2023-08-23 | 2023-08-23 | Piston parallel compression condensing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220417716U (en) |
-
2023
- 2023-08-23 CN CN202322272889.6U patent/CN220417716U/en active Active
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