CN201428605Y - Screw parallel compressor unit oil supply system - Google Patents
Screw parallel compressor unit oil supply system Download PDFInfo
- Publication number
- CN201428605Y CN201428605Y CN200920091237XU CN200920091237U CN201428605Y CN 201428605 Y CN201428605 Y CN 201428605Y CN 200920091237X U CN200920091237X U CN 200920091237XU CN 200920091237 U CN200920091237 U CN 200920091237U CN 201428605 Y CN201428605 Y CN 201428605Y
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- CN
- China
- Prior art keywords
- oil
- stop valve
- supply system
- oil pump
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a screw parallel compressor unit oil supply system belonging to the field of refrigeration equipment. The screw parallel compressor unit oil supply system comprises an oilseparator and a stop valve I connected with the oil separator, wherein, the stop valve I is connected with a stop valve II through the oil separator, the stop valve II is connected with an oil pump through a filter, and the oil pump is connected with a stop valve III. Compared with the conventional screw parallel compressor oil supply system, the utility model requires no use of a one-way valve and a pressure difference valve, is simple in structure and low in cost. Moreover, in the utility model, the fact that oil pumped by the oil pump is the oil cooled by an oil cooler, so as to result in adrop in the working temperature of the oil pump of dozens of DEG C, thereby prolonging the service life of the oil pump.
Description
Technical field
The utility model belongs to the refrigeration plant field, is specifically related to a kind of refrigeration plant oil supply system.
Background technique
As shown in Figure 1, the compressor oil-supplying system comprises oil separator 1 in the prior art, oil separator 1, stop valve I 2, filter 3, one-way valve 4, stop valve II 5, oil cooler 8 and stop valve III 9 are connected successively, and stop valve III 9 connects the compressor oil-supplying pipeline; Pressure difference valve 6 in parallel and oil pump 7 on the one-way valve 4.When the high pressure of screw rod unit in parallel and low pressure pressure reduction during less than setup parameter, rely on oil pump 7 to force fuel feeding, oil finally flows into the compressor oil-supplying pipeline through oil separator 1, stop valve I 2, filter 3, oil pump 7, stop valve II 5, oil cooler 8 and stop valve III9, simultaneously, when if the outlet pressure of oil pump 7 is too high, part oil circulates between oil pump 7 and pressure difference valve 6; When the high pressure of screw rod compressor bank in parallel and low pressure pressure reduction during greater than setup parameter, rely on the pressure reduction fuel feeding of unit high pressure in parallel and low pressure, oil is through oil separator 1, stop valve I 2, filter 3, one-way valve 4, stop valve II 5, oil cooler 8 and the stop valve III 9 final compressor oil-supplying pipelines that flow into.The shortcoming that this compressor oil-supplying system exists is the system architecture complexity, the cost height.
The model utility content
The problem that to be solved in the utility model is existing compressor oil-supplying system architecture complexity, cost is high provides a kind of screw rod simple in structure, that cost is low compressor bank oil supply system in parallel.
The technical solution of the utility model realizes with following method:
A kind of SCREW COMPRESSOR oil supply system, the stop valve I that comprises oil separator and be connected with oil separator, described stop valve I connects stop valve II by oil cooler, and stop valve II connects oil pump by filter, and oil pump connects stop valve III.
Described oil cooler is the Wind-cooling type oil cooler.
Described oil cooler is the water-cooling type oil cooler, and the water-cooling type oil cooler connects water pump.
System compares with existing screw rod compressor oil-supplying in parallel, and the utility model does not need one-way valve and pressure difference valve, and is simple in structure, and cost is low.In addition, in the utility model, the oil that oil pump pumps into is through the cooled oil of oil cooler, and the temperature of oil pump work reduces by tens degrees centigrade, the working life of having improved oil pump.
Description of drawings
Fig. 1 is the screw rod of a prior art compressor oil-supplying system schematic in parallel;
Fig. 2 is the utility model embodiment 1 a schematic representation;
Fig. 3 is the utility model embodiment 2 a schematic representation.
Embodiment
As shown in Figure 2, the utility model comprises oil separator 1 and the stop valve I 2 that is connected with oil separator 1.Described stop valve I 2 connects stop valve II 5 by oil cooler, and stop valve II 5 connects oil pump 7 by filter 3, and oil pump 7 connects stop valve III 9.Described oil cooler is a Wind-cooling type oil cooler 10.
The utility model working procedure is as follows: stop valve III 9 connects the compressor oiler, and the oil that flows out from oil separator flows to compressor through stop valve I 2, oil cooler 10, stop valve II 5, filter 3, oil pump 7 and stop valve III 9.When the pressure reduction of the high pressure of screw rod compressor bank in parallel and low pressure hour, oil pump 7 is started working, and oil pump is gone into compressor; When the pressure reduction of the high pressure of screw rod compressor bank in parallel and low pressure during in normal operating range, oil pump 7 quits work, and at least two mm clearance are arranged between the impeller of oil pump 7, and oil can flow through from oil pump 7, finally flows into the compressor oil-supplying pipeline.
Described oil cooler is a water-cooling type oil cooler 11, and water-cooling type oil cooler 11 connects water pump 12, and other structure is with embodiment 1.
Claims (3)
1. screw rod compressor bank oil supply system in parallel, comprise oil separator (1) and the stop valve I (2) that is connected with oil separator (1), it is characterized in that: described stop valve I (2) connects stop valve II (5) by oil cooler, stop valve II (5) connects oil pump (7) by filter (3), and oil pump (7) connects stop valve III (9).
2. screw rod according to claim 1 compressor bank oil supply system in parallel, it is characterized in that: described oil cooler is Wind-cooling type oil cooler (10).
3. screw rod according to claim 1 compressor bank oil supply system in parallel, it is characterized in that: described oil cooler is water-cooling type oil cooler (11), water-cooling type oil cooler (11) connects water pump (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920091237XU CN201428605Y (en) | 2009-07-01 | 2009-07-01 | Screw parallel compressor unit oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920091237XU CN201428605Y (en) | 2009-07-01 | 2009-07-01 | Screw parallel compressor unit oil supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428605Y true CN201428605Y (en) | 2010-03-24 |
Family
ID=42032342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920091237XU Expired - Fee Related CN201428605Y (en) | 2009-07-01 | 2009-07-01 | Screw parallel compressor unit oil supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201428605Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567205A (en) * | 2019-10-12 | 2019-12-13 | 江苏星星家电科技有限公司 | Siphon oil cooling system of screw parallel compressor unit |
-
2009
- 2009-07-01 CN CN200920091237XU patent/CN201428605Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567205A (en) * | 2019-10-12 | 2019-12-13 | 江苏星星家电科技有限公司 | Siphon oil cooling system of screw parallel compressor unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20170701 |