CN201973960U - Oil return system for hydraulic filling flooded water source ejector - Google Patents
Oil return system for hydraulic filling flooded water source ejector Download PDFInfo
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- CN201973960U CN201973960U CN2011200332954U CN201120033295U CN201973960U CN 201973960 U CN201973960 U CN 201973960U CN 2011200332954 U CN2011200332954 U CN 2011200332954U CN 201120033295 U CN201120033295 U CN 201120033295U CN 201973960 U CN201973960 U CN 201973960U
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- oil
- oil return
- condenser
- evaporimeter
- compressor
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Abstract
An oil return system for hydraulic filling flooded water source ejector belongs to the field of Water Source Heat Pump air-conditioning technology. The oil return system for hydraulic filling flooded water source ejector is characterized in that: a separator of oil and gases is arranged within a condenser (10); two connecting liens are arranged between the condenser (10) and an evaporimeter for hydraulic fillings (2); one connecting pipe connects a high-pressure oil filter (9), a solenoid valve (7), an ejector (6),a low-pressure oil filter (5), and two oil-return solenoid valves successively; the two oil-return solenoid valves connect the two return openings of the evaporimeter for hydraulic fillings (2); the other connecting pipe connects a device for drying and filtering (11) and an electronic expansion valve (8) successively. The utility model has the following advantages: aircrews for a heat pump have a stable operation; the utility model has a good oil-return effect; the utility model improves the stability of the system, and reduces the loss of the system energy.
Description
Technical field
Source, a kind of full-liquid type water ground injection oil return system belongs to the water source heat pump air-conditioner technical field.
Background technology
At present, it in the industry Energy Efficiency Ratio that improves product, more and more enterprises adopts the flooded evaporator technology in large-scale handpiece Water Chilling Units, for a long time, flooded evaporator technology ubiquity the problem of compressor oil return, be that the interior lubricating oil of compressor can be taken compressor out of from blast pipe along with refrigerant, will certainly cause the lubricating oil meeting phenomenon less and less in the compressor like this, if oil return is undesirable, not only cause the heat exchange effect to reduce, and can cause compressor to lose oil too much can not to run well or cause compressor damage.
For guaranteeing the reliability service of compressible machine, a lot of producers have all adopted the unit with injection oil return loop, it comprises the compressor that connects and form the loop successively, gs-oil separator, condenser, restricting element, evaporimeter, also comprise injection oil return loop in the described unit, described injection oil return loop comprises a pipeline and a pipeline of drawing from described evaporimeter of drawing from described condenser, article two, described pipeline is connected in described compressor by pipeline after being summarized in injector again, but this structure exists following shortcoming: because the injection oil return loop that these producers adopt all has a key equipment---injector, and injector most employing gases at high pressure and highly pressurised liquid are as the power source of injection, because gases at high pressure and highly pressurised liquid have all taken a part of cold-producing medium, so just waste the energy of a part of compressor, thereby reduced refrigerating capacity.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, the source, full-liquid type water ground that a kind of source pump is stable, oil return is effective injection oil return system is provided.
The technical scheme that its technical problem that solves the utility model adopts is: this source, a kind of full-liquid type water ground injection oil return system, comprise compressor, full liquid evaporimeter, injector and condenser, compressor connects full liquid evaporimeter and condenser respectively, it is characterized in that: gs-oil separator places condenser inside, be provided with two connecting lines between condenser and the full liquid evaporimeter, article one, connecting line connects the hydraulic oil filter successively, magnetic valve, injector, low pressure oil filter and two oil return solenoid valves, two oil return solenoid valves connect two oil return openings of full liquid evaporimeter, and another connecting line connects device for drying and filtering and electric expansion valve successively.The purpose that two oil return openings are set on full liquid evaporimeter is to adopt different oil return openings under different loads, and what guarantee that injection goes back all is the rich oil refrigerant, thereby avoids the loss of ability.
Described injector is provided with three ports, comprises hydraulic oil inlet, low pressure rich oil refrigerant entrance and exit, and the hydraulic oil inlet connects the hydraulic oil filter by magnetic valve, and low pressure rich oil refrigerant inlet connects the low pressure oil filter, and outlet connects the compressor air suction end.
Compared with prior art, the beneficial effect that the utility model had is:
Adopt the core apparatus of venturi injector as oil return, at full liquid evaporimeter two oil return openings are set, each oil return opening all is provided with independent oil return solenoid valve control, promptly under different load, adopt different oil return openings, the mode that adopts this secondary injection all is the rich oil refrigerant in order to what guarantee that injection goes back, thereby effectively reduce the loss of energy, better save the energy of compressor, the refrigerating capacity that guarantees unit can not descend, avoided causing unit to burn or the evaporimeter trapped fuel too much influences the heat exchange effect, guaranteed full-liquid type water earth source heat pump set steady owing to compressor loses oil, operation efficiently.
Description of drawings
Fig. 1 is the utility model structure annexation schematic diagram.
Fig. 2 is the utility model injector structure cutaway view schematic diagram.
Wherein: 1, compressor 2, full liquid evaporimeter 3, first oil return solenoid valve 4, second oil return solenoid valve 5, low pressure oil filter 6, injector 7, magnetic valve 8, electromagnetic expanding valve 9, hydraulic oil filter 10, condenser 11, device for drying and filtering 12, hydraulic oil inlet 13, low pressure rich oil refrigerant inlet 14, outlet.
Fig. 1～2nd, most preferred embodiment of the present utility model is described further below in conjunction with 1～2 pair of the utility model of accompanying drawing:
The specific embodiment
With reference to accompanying drawing 1～2:
This source, full-liquid type water ground injection oil return system, comprise compressor 1, full liquid evaporimeter 2, injector 6 and condenser 10, compressor 1 connects full liquid evaporimeter 2 and condenser 10 respectively, gs-oil separator places condenser 10 inside, be provided with two connecting lines between condenser 10 and the full liquid evaporimeter 2, article one, connecting line connects hydraulic oil filter 9 successively, magnetic valve 7, injector 6, low pressure oil filter 5, first oil return solenoid valve 3 and second oil return solenoid valve 4, first oil return solenoid valve 3 is connected two oil return openings of expiring liquid evaporimeter 2 respectively with second oil return solenoid valve 4, and another connecting line connects device for drying and filtering 11 and electric expansion valve 8 successively.
Injector 6 is provided with three ports, comprise hydraulic oil inlet 12, low pressure rich oil refrigerant inlet 13 and export 14, hydraulic oil inlet 12 connects hydraulic oil filter 9 by magnetic valve 7, and low pressure rich oil refrigerant inlet 13 connects low pressure oil filter 5, and outlet 14 connects compressor 1 suction end.
The course of work is as follows:
The utility model is to utilize Venturi effect, with the method for compressor oil by the high pressure injection that remains in the full liquid evaporimeter 2, utilization is built in high-pressure oil gas mixture that the gs-oil separator of condenser 10 inside separates as drive source, it is collected again be supplemented in the compressor 1.
After the unit start operation, because unit is in underrun, liquid level is lower, therefore, first oil return solenoid valve 3 is opened, the high-pressure oil gas that gs-oil separator in the condenser 10 is separated is by the inside venturi reducing part of injector 6, produce the supersonic speed effect and cause parital vacuum, the rich oil liquid coolant injection of full liquid evaporimeter 2 inside is inner mixed with high-pressure oil gas to injector 6, effect by mixing portion and expansion mouth in the injector 6, reach intimate pressure of inspiration(Pi), there is the outlet 14 of injector 6 to return compressor 1 suction end then, when compressor 1 operating load greater than 75% the time, second oil return solenoid valve 4 is opened, and first oil return solenoid valve 3 is closed, and the rich oil liquid injections that the same high-pressure oil gas of being separated by gs-oil separator will be expired in the liquid evaporimeter 2 return compressor 1 suction end, what adopt that thereby the secondary injection guarantees that injection goes back all is the rich oil refrigerant, has effectively reduced the loss of energy.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (2)
1. source, full-liquid type water ground injection oil return system, comprise compressor (1), full liquid evaporimeter (2), injector (6) and condenser (10), compressor (1) connects full liquid evaporimeter (2) and condenser (10) respectively, it is characterized in that: gs-oil separator places condenser (10) inside, be provided with two connecting lines between condenser (10) and the full liquid evaporimeter (2), article one, connecting line connects hydraulic oil filter (9) successively, magnetic valve (7), injector (6), low pressure oil filter (5) and two oil return solenoid valves, two oil return solenoid valves connect two oil return openings of full liquid evaporimeter (2), and another connecting line connects device for drying and filtering (11) and electric expansion valve (8) successively.
2. source, a kind of full-liquid type water ground according to claim 1 injection oil return system, it is characterized in that: described injector (6) is provided with three ports, comprise hydraulic oil inlet (12), low pressure rich oil refrigerant inlet (13) and outlet (14), hydraulic oil inlet (12) connects hydraulic oil filter (9) by magnetic valve (7), low pressure rich oil refrigerant inlet (13) connects low pressure oil filter (5), and outlet (14) connects compressor (1) suction end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200332954U CN201973960U (en) | 2011-01-30 | 2011-01-30 | Oil return system for hydraulic filling flooded water source ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200332954U CN201973960U (en) | 2011-01-30 | 2011-01-30 | Oil return system for hydraulic filling flooded water source ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973960U true CN201973960U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200332954U Expired - Fee Related CN201973960U (en) | 2011-01-30 | 2011-01-30 | Oil return system for hydraulic filling flooded water source ejector |
Country Status (1)
| Country | Link |
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| CN (1) | CN201973960U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976828A (en) * | 2014-04-01 | 2015-10-14 | 同方人工环境有限公司 | Sea ship flooded evaporator oil return device |
| CN105805970A (en) * | 2016-03-22 | 2016-07-27 | 浙江英谷节能设备有限公司 | Heat pump unit and gas-liquid two-phase uniform distribution method |
| CN106403335A (en) * | 2015-07-27 | 2017-02-15 | 博世热力技术（山东）有限公司 | Compressor parallel connection refrigerating system and oil return control method of refrigerating system |
| CN110685904A (en) * | 2019-10-31 | 2020-01-14 | 格力电器（合肥）有限公司 | Screw machine testing method and system |
| WO2020103516A1 (en) * | 2018-11-21 | 2020-05-28 | 青岛海尔空调电子有限公司 | Evaporative cooling chiller unit heat-exchanging system and control method therefor |
-
2011
- 2011-01-30 CN CN2011200332954U patent/CN201973960U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976828A (en) * | 2014-04-01 | 2015-10-14 | 同方人工环境有限公司 | Sea ship flooded evaporator oil return device |
| CN106403335A (en) * | 2015-07-27 | 2017-02-15 | 博世热力技术（山东）有限公司 | Compressor parallel connection refrigerating system and oil return control method of refrigerating system |
| CN105805970A (en) * | 2016-03-22 | 2016-07-27 | 浙江英谷节能设备有限公司 | Heat pump unit and gas-liquid two-phase uniform distribution method |
| CN105805970B (en) * | 2016-03-22 | 2018-09-18 | 浙江英谷节能设备有限公司 | A kind of heat pump unit and gas-liquid two-phase uniform distribution method |
| WO2020103516A1 (en) * | 2018-11-21 | 2020-05-28 | 青岛海尔空调电子有限公司 | Evaporative cooling chiller unit heat-exchanging system and control method therefor |
| CN110685904A (en) * | 2019-10-31 | 2020-01-14 | 格力电器（合肥）有限公司 | Screw machine testing method and system |
| CN110685904B (en) * | 2019-10-31 | 2022-04-15 | 格力电器（合肥）有限公司 | Screw machine testing method and system |
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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: BOSCH THERMOTECHNOLOGY (SHANDONG) CO., LTD. Free format text: FORMER OWNER: SHANDONG OAK AIR-CONDITIONING TECHNOLOGY CO., LTD. Effective date: 20120827 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120827 Address after: 256404, Dongfeng Road 77, Chen Zhuang Town, Huantai County, Zibo, Shandong Patentee after: BOSCH thermal technology (Shandong) Co., Ltd. Address before: 256404, No. 77 Zhang Tian Road, Chen Zhen, Huantai County, Zibo, Shandong Patentee before: Shandong OAK Central Air Conditioning Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20190130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |