CN202692541U - Exhaust oil pipeline structure of flooded screw water chilling unit - Google Patents
Exhaust oil pipeline structure of flooded screw water chilling unit Download PDFInfo
- Publication number
- CN202692541U CN202692541U CN 201220312080 CN201220312080U CN202692541U CN 202692541 U CN202692541 U CN 202692541U CN 201220312080 CN201220312080 CN 201220312080 CN 201220312080 U CN201220312080 U CN 201220312080U CN 202692541 U CN202692541 U CN 202692541U
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- China
- Prior art keywords
- oil
- valve
- pipeline structure
- water chilling
- compressor
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- Expired - Fee Related
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Abstract
The utility model relates to an exhaust oil pipeline structure of a flooded screw water chilling unit. The exhaust oil pipeline structure comprises a screw compressor (1), an oil separator (3), an exhaust stop valve (4), an oil filter (5), an oil pump (6), a check valve (7), a one-way valve (9) and a condenser (13), the check valve (7) is connected between the screw compressor (1) and the oil separator (3), the exhaust stop valve (4) is connected with the rear end of the oil separator (3), an oil storage drum (15) is arranged on the lower portion of the oil separator (3), refrigerant oil collected in the oil storage drum (15) sequentially flows through the oil filter (5) and the one-way valve (9) to flow back into the screw compressor (1), and the oil pump (6) is parallelly connected with the one-way valve (9). By means of the exhaust oil pipeline structure of the flooded screw water chilling unit, the refrigerant oil can safely and reliably flow back to the compressor, the minimum loss of system refrigerants are guaranteed during a maintaining process, and environment pollution is reduced.
Description
Technical field
The utility model relates to a kind of flooded screw handpiece Water Chilling Units vent control valve pipeline structure, belongs to air conditioner technical field.
Background technology
Because the flooded screw handpiece Water Chilling Units generally needs the external oil eliminator of configuration, the refrigeration oil that is stored in the compressor outside needs circular flow to return compressor, and the parts such as bearing of compressor are lubricated.The circulation power of refrigeration oil generally is that the height pressure reduction incoming flow that relies on refrigeration system moves, and common minimum pressure reduction requires to be not less than 0.3MPa.But handpiece Water Chilling Units is at some special occasions, when using such as textile mills, the temperature of chilled water is higher, approximately 15 ℃ ~ 18 ℃, and under the lower condition of some transition season environment temperatures, still need to move handpiece Water Chilling Units, so, the situation that minimum pressure reduction requires will appear being lower than in the height pressure reduction of handpiece Water Chilling Units, especially at the unit starting loading procedure.In this case, the refrigeration oil compressor that just can not in time reflux causes a hidden trouble to the operation of compressor; In addition, traditional design is is generally imported and exported at compressor the intake and exhaust stop valve is set, like that Fuel Pump Repair and when changing refrigeration oil and wash oil filter can't with isolation of system, have to during repair and maintenance the refrigerant collecting of refrigeration system is stored in the additional device, cause repair and maintenance inconvenient.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, a kind of flooded screw handpiece Water Chilling Units vent control valve pipeline structure is provided, it can guarantee the refrigeration oil compressor that in time refluxes, and guarantees the compressor safe operation, and its Fuel Pump Repair, refrigeration oil is changed and oil strainer cleans all very convenient.
The purpose of this utility model is achieved in that a kind of flooded screw handpiece Water Chilling Units vent control valve pipeline structure, it comprises helical-lobe compressor, oil eliminator, discharge line valve, oil strainer, oil pump, check-valves, check valve and condenser, be connected with check-valves between described helical-lobe compressor and the oil eliminator, described discharge line valve is connected in the oil eliminator rear end, the outlet of described discharge line valve is connected with condenser, described oil eliminator bottom is provided with oil storage barrel, be pooled to refrigeration oil in the described oil storage barrel and flow back in the helical-lobe compressor by oil strainer and check valve successively, be parallel with oil pump on the described check valve.
Compared with prior art, the utlity model has following beneficial effect:
A kind of flooded screw handpiece Water Chilling Units of the utility model vent control valve pipeline structure, it on the one hand can be under the unconventional operating mode of unit operation, as under the low ambient temperature and chilled water leaving water temperature when high, start the oil pump operation, guarantee that cold eastern oil flows back to compressor safely and reliably; On the other hand, when needing repairing compressor or replacing refrigeration oil and wash oil filter, can be by closing the intake and exhaust stop valve, compressor, gas exhaust piping, oil pipe line, oil eliminator are done as a whole the partition, and it is relatively independent to guarantee to have stored the shell and tube evaporator of a large amount of cold-producing mediums and condenser and other refrigerant line system, so that in the repair and maintenance process, guarantee the minimum loss of system refrigerant, environmental contamination reduction.
Description of drawings
Fig. 1 is the schematic diagram of the flooded screw handpiece Water Chilling Units vent control valve pipeline structure of conventional.
Fig. 2 is the schematic diagram of a kind of flooded screw handpiece Water Chilling Units of the utility model vent control valve pipeline structure.
Wherein:
Helical-lobe compressor 1
Compressor air suction stop valve 2
Oil eliminator 3
Discharge line valve 4
Oil pump 6
Check-valves 7
Oil pressure difference switch 8
Check valve 9
Angle valve I10
Angle valve II12
The specific embodiment
Referring to Fig. 2, a kind of flooded screw handpiece Water Chilling Units of the utility model vent control valve pipeline structure, it comprises helical-lobe compressor 1, oil eliminator 3, discharge line valve 4, oil strainer 5, oil pump 6, check-valves 7, check valve 9 and condenser 13, be connected with check-valves 7 between described helical-lobe compressor 1 and the oil eliminator 3, described discharge line valve 4 is connected in oil eliminator 3 rear ends, the outlet of described discharge line valve 4 is connected with condenser 13, described oil eliminator 3 bottoms are provided with oil storage barrel 15, be pooled to refrigeration oil in the described oil storage barrel 15 and flow back in the helical-lobe compressor 1 by oil strainer 5 and check valve 9 successively, be parallel with oil pump 6 on the described check valve 9.
The HTHP refrigerating agent containing oil gas that helical-lobe compressor 1 is discharged enters oil eliminator 3 through check-valves 7 first, realizes Oil-gas Separation, and gases at high pressure enter unit condenser 13 through discharge line valve 4 again and cool off; The refrigeration oil of separating through oil eliminator 3 compiles in the oil storage barrel 15 that is stored in oil eliminator 3 bottoms, flows back in the helical-lobe compressor 1 through oil strainer 5 and check valve 9 successively to be lubricated again, and is parallel with oil pump 6 on the check valve 9.When system's height pressure reduction satisfied minimum refrigeration oil circulation pressure reduction requirement, oil pump did not start, and refrigeration oil circulates by height pressure reduction, and without oil pump.The start and stop of pump are controlled according to the height pressure reduction that system detects, and when system's height pressure reduction is lower than desired minimum pressure reduction, start the oil pump circulation, and when system's height pressure reduction reached minimum pressure reduction+0.15MPa, oil pump was out of service; During maintenance, two stop valves can be closed, the refrigeration pipe systems such as compressor, oil content, oil pipe line and evaporimeter, condenser are isolated, easily realize the maintenance compressor, change the repair and maintenance work such as refrigeration oil, wash oil filter, after maintenance finishes, at Open valve, normal operation can recover in system.
Claims (1)
1. flooded screw handpiece Water Chilling Units vent control valve pipeline structure, it is characterized in that: it comprises helical-lobe compressor (1), oil eliminator (3), discharge line valve (4), oil strainer (5), oil pump (6), check-valves (7), check valve (9) and condenser (13), be connected with check-valves (7) between described helical-lobe compressor (1) and the oil eliminator (3), described discharge line valve (4) is connected in oil eliminator (3) rear end, the outlet of described discharge line valve (4) is connected with condenser (13), described oil eliminator (3) bottom is provided with oil storage barrel (15), be pooled to refrigeration oil in the described oil storage barrel (15) and flow back in the helical-lobe compressor (1) by oil strainer (5) and check valve (9) successively, be parallel with oil pump (6) on the described check valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312080 CN202692541U (en) | 2012-06-30 | 2012-06-30 | Exhaust oil pipeline structure of flooded screw water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312080 CN202692541U (en) | 2012-06-30 | 2012-06-30 | Exhaust oil pipeline structure of flooded screw water chilling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692541U true CN202692541U (en) | 2013-01-23 |
Family
ID=47548150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220312080 Expired - Fee Related CN202692541U (en) | 2012-06-30 | 2012-06-30 | Exhaust oil pipeline structure of flooded screw water chilling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202692541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608550A (en) * | 2019-11-05 | 2019-12-24 | 烟台欧森纳地源空调股份有限公司 | Evaporation type heat pump system |
-
2012
- 2012-06-30 CN CN 201220312080 patent/CN202692541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608550A (en) * | 2019-11-05 | 2019-12-24 | 烟台欧森纳地源空调股份有限公司 | Evaporation type heat pump system |
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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 |
Granted publication date: 20130123 Termination date: 20140630 |
|
| EXPY | Termination of patent right or utility model |