CN202361681U - Flooded screw water-cooling cold water/heat pump unit - Google Patents
Flooded screw water-cooling cold water/heat pump unit Download PDFInfo
- Publication number
- CN202361681U CN202361681U CN2011205243637U CN201120524363U CN202361681U CN 202361681 U CN202361681 U CN 202361681U CN 2011205243637 U CN2011205243637 U CN 2011205243637U CN 201120524363 U CN201120524363 U CN 201120524363U CN 202361681 U CN202361681 U CN 202361681U
- Authority
- CN
- China
- Prior art keywords
- compressor
- pressure
- valve
- condenser
- water
- 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 - Lifetime
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a flooded screw water-cooling cold water/heat pump unit, and relates to the technical field of air-conditioning refrigeration. The flooded screw water-cooling cold water/heat pump unit comprises a refrigeration system which consists of a compressor, a condenser, a dry filter, a liquid inspection mirror, an expansion valve and an evaporator which are connected in sequence. The flooded screw water-cooling cold water/heat pump unit is characterized in that the compressor is an oil-containing semi-closed screw compressor; a pressure maintenance valve is arranged between the compressor and the condenser; the inlet of the pressure maintenance valve is connected with an air outlet of the compressor; an air inlet of the condenser is connected with the outlet of the pressure maintenance valve; and a balance opening of the pressure maintenance valve is connected with a low-pressure side of the compressor through a balance pipe. Compared with the prior art, pressure difference needed in operation of the system can be rapidly established by utilizing the utility model, so that the unit is lubricated, and the normal start and safe and stable operation of the unit are ensured.
Description
Technical field
The utility model relates to the air conditioner refrigerating technical field, particularly full-liquid type screw rod water-cooled cold water/source pump.
Background technology
In the prior art, use the full-liquid type unit of big capacity helical-lobe compressor, receive user's favor deeply because its refrigerating capacity is big, the coefficient of performance of refrigerating advantages of higher.But because mostly the large-scale Spiral Lobe Refrigeration Compressor of this product is external oil circulating system; Its fuel feeding scheme is generally taked dual mode: a kind of is the mode of carrying out fuel feeding with oil pump as power; But the oil sealing working life time of oil pump is shorter; Replacing can not cause the leakage loss of system refrigerant and oil on schedule, so oil pump is not suitable for long-term operation, and very trouble is safeguarded and changed to the oil sealing of oil pump.Another kind is to utilize the mode that compressor is inhaled, exhaust pressure reduction carries out fuel feeding as power; But in the unit starting stage; Because chilled water and cooling water temperature also do not draw back; Can't set up the pressure reduction of compressor oil-supplying system operate as normal in short time, cause compressor can't accomplish loading procedure, the few fuel delivery of fuel delivery also can cause lubrication failure less and damage compressor.Usually way reduces chilled water or cooling water inflow, after the system of treating sets up certain pressure reduction for regulating the valve of water system; Return to the normal water yield of unit more gradually, this way labour intensity is big, needs the professional to instruct; Adopt control automatically like the water route, then cost is very high, and the unit operation poor reliability.Cause this series products at home the extensive use in market be restricted, this technical barrier is never solved preferably.
Summary of the invention
To the problem that above-mentioned prior art exists, the purpose of the utility model provides a kind of full-liquid type screw rod water-cooled cold water/source pump.It can move required pressure reduction with system and set up fast, and unit is lubricated, and the assurance system normally starts, safe and stable operation.
In order to reach the foregoing invention purpose, the technical scheme of the utility model realizes as follows:
Full-liquid type screw rod water-cooled cold water/source pump, it comprises the refrigeration system of the compressor, condenser, device for drying and filtering, liquid-sighting glass, expansion valve and the evaporimeter composition that connect successively.Its design feature is that said compressor is provided with pressure between compressor and the condenser and keeps valve for the semi-enclosed helical-lobe compressor of band oil content.Pressure is kept the valve import and is connected with exhaust outlet of compressor, and the condenser air inlet is kept valve outlet port with pressure and is connected, and pressure is kept the valve balance port and is connected with the compressor low-pressure side through balance pipe.
Full-liquid type screw rod water-cooled cold water/source pump, it comprises the refrigeration system of the compressor, oil eliminator, condenser, device for drying and filtering, liquid-sighting glass, expansion valve and the evaporimeter composition that connect successively.Its design feature is that said compressor is provided with pressure between oil eliminator and the condenser and keeps valve for not being with the semi-enclosed helical-lobe compressor of oil content.Pressure is kept the valve import and is connected with the exhaust outlet of oil eliminator, and the condenser air inlet is kept valve outlet port with pressure and is connected, and pressure is kept the valve balance port and is connected with the compressor low-pressure side through balance pipe.
The utility model is owing to adopted said structure; Between compressor (one-level oil eliminator) and condenser, set up pressure and keep valve; Keep the opening pressure of valve through regulating pressure, guarantee the operation pressure reduction of unit, make unit can when start, set up pressure reduction rapidly; Guarantee flowing of compressor internal lubrication oil, make unit obtain effectively lubricating and normal load.It is simple that pressure in the utility model is kept valve arrangement, reliable, no consumable accessory, and it has quick turn-off function simultaneously, can replace the venting check valve function.The utility model can save the oil pump feed system fully owing to guaranteed the required pressure reduction of fuel feeding, has improved the reliability of system works, has reduced maintenance, has enlarged the range of application of unit.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two.
The specific embodiment
Embodiment one
Referring to Fig. 1, the utility model comprises successively the refrigeration system that the semienclosed helical-lobe compressor of the band oil content that connects 1, condenser 2, device for drying and filtering 3, liquid-sighting glass 4, expansion valve 5 and evaporimeter 6 are formed.Between compressor 1 and the condenser 2 pressure is set and keeps valve 7, pressure is kept valve 7 imports and is connected with compressor 1 exhaust outlet, and condenser 2 air inlets are kept valve 7 outlets with pressure and are connected, and pressure is kept valve 7 balance port and is connected with compressor 1 low-pressure side through balance pipe 8.
Embodiment two
Referring to Fig. 2, the utility model comprise successively connect be not with the semienclosed helical-lobe compressor of oil content 1, oil eliminator 9, condenser 2, device for drying and filtering 3, liquid-sighting glass 4, expansion valve 5 and evaporimeter 6.Between oil eliminator 9 and the condenser 2 pressure is set and keeps valve 7; Pressure is kept valve 7 imports and is connected with the exhaust outlet of oil eliminator 9; Condenser 2 air inlets are kept valve 7 outlets with pressure and are connected, and pressure is kept valve 7 balance port and is connected with compressor 1 low-pressure side through balance pipe 8.
When using the utility model; Owing between compressor (one-level oil eliminator) and condenser, set up pressure and kept valve; Keep the opening pressure of valve through regulating pressure, just can guarantee the operation pressure reduction of unit, make unit can when start, set up pressure reduction rapidly; Guarantee flowing of compressor internal lubrication oil, make unit obtain effectively lubricating and normal load.
Claims (2)
1. full-liquid type screw rod water-cooled cold water/source pump; It comprises the refrigeration system of the compressor (1), condenser (2), device for drying and filtering (3), liquid-sighting glass (4), expansion valve (5) and evaporimeter (6) composition that connect successively; It is characterized in that; Said compressor (1) is provided with pressure and keeps valve (7) for the semi-enclosed helical-lobe compressor of band oil content between compressor (1) and the condenser (2), pressure is kept valve (7) import and is connected with compressor (1) exhaust outlet; Condenser (2) air inlet is kept valve (7) outlet with pressure and is connected, and pressure is kept valve (7) balance port and is connected with compressor (1) low-pressure side through balance pipe (8).
2. full-liquid type screw rod water-cooled cold water/source pump; It comprises the refrigeration system of the compressor (1), oil eliminator (9), condenser (2), device for drying and filtering (3), liquid-sighting glass (4), expansion valve (5) and evaporimeter (6) composition that connect successively; It is characterized in that; Said compressor (1) is not for being with the semi-enclosed helical-lobe compressor of oil content; Between said oil eliminator (9) and the condenser (2) pressure is set and keeps valve (7); Pressure is kept valve (7) import and is connected with the exhaust outlet of oil eliminator (9), and condenser (2) air inlet is kept valve (7) outlet with pressure and is connected, and pressure is kept valve (7) balance port and is connected with compressor (1) low-pressure side through balance pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205243637U CN202361681U (en) | 2011-12-15 | 2011-12-15 | Flooded screw water-cooling cold water/heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205243637U CN202361681U (en) | 2011-12-15 | 2011-12-15 | Flooded screw water-cooling cold water/heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202361681U true CN202361681U (en) | 2012-08-01 |
Family
ID=46572863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205243637U Expired - Lifetime CN202361681U (en) | 2011-12-15 | 2011-12-15 | Flooded screw water-cooling cold water/heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202361681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162460A (en) * | 2011-12-15 | 2013-06-19 | 同方人工环境有限公司 | Hydraulic filling type screw water-cooled cold water and heat pump unit |
-
2011
- 2011-12-15 CN CN2011205243637U patent/CN202361681U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162460A (en) * | 2011-12-15 | 2013-06-19 | 同方人工环境有限公司 | Hydraulic filling type screw water-cooled cold water and heat pump unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101608817B (en) | Energy-saving air conditioner using outdoor cold source indirectly | |
| CN204006829U (en) | A kind of energy-efficient liquid cooling origin system | |
| CN105823256A (en) | Working method for air source heat pump device for compressor return oil cooling | |
| CN103162460A (en) | Hydraulic filling type screw water-cooled cold water and heat pump unit | |
| CN110986406A (en) | Multi-split VRV device for machine room, control method and system | |
| CN202361681U (en) | Flooded screw water-cooling cold water/heat pump unit | |
| CN104422198B (en) | The control method of compressor and its oil pump | |
| CN112710041A (en) | Double-pump hybrid-driven composite heat pipe energy-saving air conditioning system | |
| CN101858349B (en) | Oil supply loop of screw rod type refrigeration compressor flooded unit | |
| CN103292388B (en) | Refrigerating system for engine room | |
| CN210463660U (en) | Ultra-low temperature air source heat pump unit with parallel compressors | |
| CN104807248B (en) | A kind of centralized cold and heat source system for workshop circulation | |
| CN202100532U (en) | Outlaid oil cooling device of a centrifugal compressor | |
| CN202692541U (en) | Exhaust oil pipeline structure of flooded screw water chilling unit | |
| CN204438359U (en) | Air-conditioner outdoor unit | |
| CN210107744U (en) | Heat pump type oil heating unit | |
| CN201439756U (en) | Oil supply circuit of flooded unit of screw-rod refrigerating compressor | |
| CN106050430A (en) | Inlet air cooling control system for gas turbine | |
| CN205446047U (en) | Quick lubricated air compressor machine | |
| CN210463642U (en) | Temperature control system of auto-cascade refrigerating unit | |
| CN215724252U (en) | Double-head screw rod parallel air-cooled compression condensing unit | |
| CN203671980U (en) | Industrial air-cooled frequency-conversion parallel type water chilling unit | |
| CN220689418U (en) | Energy-saving and consumption-reducing cooling device of air conditioner compressor | |
| CN204574608U (en) | A kind of centralized cold and heat source system for workshop circulation | |
| CN202757338U (en) | Refrigerating cycle system with helical-lobe compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU JIXIANG AIR-CONDITIONING EQUIPMENT CO., LT Free format text: FORMER OWNER: TONGFANG ARTIFICIAL ENVIRONMENT CO., LTD. Effective date: 20140410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 HAIDIAN, BEIJING TO: 214500 TAIZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140410 Address after: 214500 No. 111 middle Gushan Road, Jiangsu, Jingjiang Patentee after: JIANGSU JIXIANG AIR CONDITIONING EQUIPMENT CO., LTD. Address before: 100083 Haidian District Tsinghua Tongfang Technology Plaza, block A, floor 29, Beijing Patentee before: Tongfang Artificial Environment Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |