CN2180798Y - Single-machine two-stage refrigeration compressor - Google Patents
Single-machine two-stage refrigeration compressor Download PDFInfo
- Publication number
- CN2180798Y CN2180798Y CN 93247598 CN93247598U CN2180798Y CN 2180798 Y CN2180798 Y CN 2180798Y CN 93247598 CN93247598 CN 93247598 CN 93247598 U CN93247598 U CN 93247598U CN 2180798 Y CN2180798 Y CN 2180798Y
- Authority
- CN
- China
- Prior art keywords
- cavity
- low pressure
- air
- air cavity
- pressure level
- 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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Abstract
The utility model relates to the improvement of a single machine two stage refrigeration compressor, which is characterized in that an air cavity of low pressure level and a crank case which are positioned in a compressor body are partitioned; an air sucking cavity of an air cavity of high pressure level is communicated with the crank case; an air sucking cavity of the air cavity of low pressure level is provided with an oil returning port communicated with an oil returning cylinder through valves. The structure of the utility model avoids the influence from the air with low temperature and low pressure in the air cavity of low pressure level on the lubricating oil in the crank case for making a device normally run under the condition of super low temperature and generating an environment with the super low temperature. The utility model has the characteristics of simple structure and low fabricating cost.
Description
The utility model relates to refrigerating field, particularly a kind of improvement of single machine two-stage refrigeration compressor.
The structure of existing single machine two-stage refrigeration compressor comprises, compressor body, motor, operating console, oil separator, You Bao, gas cooler and valve, wherein compressor body has comprised parts such as crankcase, oil pump, low, high pressure stage air cavity again, this structure has adopted the low pressure stage air cavity to be communicated with crankcase, be convenient to the backflow of lubricant oil, but when working temperature is lower than the fusing point of lubricant oil, cryogenic gas in the low pressure stage air cavity, lubricant oil is freezed, and under the worst cold case, air-breathing vacuum, oil pressure is too low, compressor can't proper functioning, also can not make ultra-low temperature surroundings.
The purpose of this utility model is that the structure of existing single machine two-stage refrigeration compressor is improved, and makes it also can make ultra-low temperature surroundings.
Task of the present utility model is achieved in that low pressure stage air cavity and crankcase in the compressor body is separated that the air aspiration cavity of high pressure stage air cavity is communicated with crankcase, and the air aspiration cavity of low pressure stage air cavity is provided with return opening, and return opening communicates with oil returning tube behind valve.During equipment operation, the pressure in the high pressure stage air cavity is big, and temperature exceeds working temperature, make with crankcase that it is communicated with in lubricant oil under the ultralow temperature operating mode, do not freeze, and guaranteed the pressure difference of oil pump proper functioning, compressor gets final product proper functioning.
The utlity model has simple in structurely, cost is low, can make the characteristics of ultra-low temperature surroundings.
Below in conjunction with legend the utility model is described further:
Fig. 1, single machine two-stage refrigerant compression body.
Separate with reference to low pressure stage air cavity in Fig. 1 compressor body 1 and crankcase 2, the air aspiration cavity of high pressure stage air cavity 4 is communicated with crankcase 2, guarantees the temperature and pressure of lubricant oil in the crankcase 2, makes oil pump energy bio-occlusion equipment fuel feeding; The air aspiration cavity of low pressure stage air cavity 1 is provided with return opening 3; return opening 3 communicates with oil returning tube 6 behind valve 5; during work; open valve; lubricant oil unnecessary in the low pressure stage air cavity 1 flows in the oil returning tube 6 through return opening 3 and valve 5; shut down back throttle down 5, the oily distributing valves that the lubricant oil in the oil returning tube 6 are wrapped through oil directly are added in the crankcase 2, avoid contacting of system and atmosphere.
Claims (1)
1, a kind of single machine two-stage refrigeration compressor of forming by compressor body, motor, operating console, oil separator, You Bao, gas, cooler and valve, it is characterized in that low pressure stage air cavity and crankcase in the compressor body separate, the air aspiration cavity of high pressure stage air cavity is communicated with crankcase, the air aspiration cavity of low pressure stage air cavity is provided with return opening, and return opening communicates with oil returning tube behind valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247598 CN2180798Y (en) | 1993-12-11 | 1993-12-11 | Single-machine two-stage refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247598 CN2180798Y (en) | 1993-12-11 | 1993-12-11 | Single-machine two-stage refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2180798Y true CN2180798Y (en) | 1994-10-26 |
Family
ID=33819959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93247598 Expired - Fee Related CN2180798Y (en) | 1993-12-11 | 1993-12-11 | Single-machine two-stage refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2180798Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043802A (en) * | 2020-01-13 | 2020-04-21 | 上海海洋大学 | Single-machine two-stage refrigeration system monitoring software |
-
1993
- 1993-12-11 CN CN 93247598 patent/CN2180798Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043802A (en) * | 2020-01-13 | 2020-04-21 | 上海海洋大学 | Single-machine two-stage refrigeration system monitoring software |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |