CN201508083U - Oil-return ejector device - Google Patents
Oil-return ejector device Download PDFInfo
- Publication number
- CN201508083U CN201508083U CN2009200294847U CN200920029484U CN201508083U CN 201508083 U CN201508083 U CN 201508083U CN 2009200294847 U CN2009200294847 U CN 2009200294847U CN 200920029484 U CN200920029484 U CN 200920029484U CN 201508083 U CN201508083 U CN 201508083U
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- CN
- China
- Prior art keywords
- oil
- oil return
- fluid inlet
- pressure nozzle
- refrigerant
- 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 discloses an oil-return ejector device, comprising an ejector shell body with a three-way structure, one end of the ejector shell body is connected with a high-pressure nozzle, and another end is connected with a venturi pipe, and a third end is provided with an injected-fluid inlet; when the machine set runs, the high-pressure refrigerant oil or the refrigerant gas derived from an oil separator are ejected through the high-pressure nozzle, and negative pressure generated between the high-pressure nozzle and the venturi pipe is reduced through flow rate, and the mixture of refrigerant oil and refrigerant is drawn into through the injected-fluid inlet in the ejector shell body, and the mixture enters a compressor after being diffused by the diffusion; the utility model has compact structure, reliable running, good ejector effect, convenient pipeline connecting during installing, and less occupied space.
Description
Technical field
The utility model relates to a kind of injector, specifically, relates to a kind of oil return injector device that is applied to full-liquid type air-conditioning unit.
Background technology
Full-liquid type air-conditioning unit is to adopt the full-liquid type heat exchanger to do the air-conditioning unit of evaporimeter, this heat exchanger utilizes the boiling heat transfer principle, and heat exchanger tube is immersed in the liquid refrigerant fully, and heat transfer temperature difference is little, coefficient of heat transfer height, the full-liquid type unit eer is much higher than the dry type unit.
But the problem of full-liquid type unit maximum is reliable oil return; refrigeration oil can't return compressor with cold-producing medium in the evaporimeter; thereby normally oil return becomes the subject matter that influences the full-liquid type unit reliability; so must increase special oil return apparatus in the full-liquid type machine set system; oil return mode commonly used at present has oil pump to force oil return and two kinds of forms of injection oil return; the oil pump oil return is exactly by the method for oil well pump is installed; refrigeration oil is extracted out in evaporimeter; compressor is got back in pressure; this mode oil return is comparatively accurate, but oil pump is mechanical transmission after all.Reliability is not high, and will consume certain electric energy when work, can reduce the Energy Efficiency Ratio of unit.The injection oil return is the high pressure refrigeration oil of separating by oil eliminator, the variation of utilization speed in injector produces negative pressure, oil in the evaporimeter released get back to compressor, the injection oil return system does not have drive disk assembly, it is a kind of oil return mode of Purely mechanical, than the oil pump oil return is that economy is reliable again, is widely adopted.But traditional injector complex structure, machining accuracy height, cost of manufacture is also high, thereby uses and also to be subjected to certain limitation, so design a kind of simple, efficient, injector is significant to the normal operation of full-liquid type unit reliably.
The utility model content
Problem to be solved in the utility model provides simple, easy for installation, the reliable oil return efficiently of a kind of making injector device, can solve full-liquid type unit oil return problem by mixture in low pressure refrigerant and the refrigeration oil in unit condenser inner high voltage liquid or the gas injection evaporimeter.
For addressing the above problem, the technical scheme that the utility model adopted is:
A kind of oil return injector device comprises an injector housing with three-port structure, and it is characterized in that: a described injector housing wherein end is connected with high pressure nozzle, and the other end is connected with Venturi tube, and the 3rd end has the driven fluid inlet.
Below be the utility model for further improvement of these options:
The center of described high pressure nozzle is provided with the driving fluid inlet that is communicated with the inner chamber of injector housing.
The cross sectional shape of described driving fluid inlet is horizontal funnel shaped.
The center of Venturi tube is provided with the diffusion passage that is communicated with the inner chamber of injector housing.
The cross sectional shape of diffusion passage is horizontal horn shape.
The utility model as housing, comprises high pressure nozzle and Venturi tube that brass is made with the red copper tee pipe fitting, adopts braze to link together.Working condition design nozzle and Venturi tube specification according to various units make unit reach best oil return effect.
During unit operation, the high pressure refrigeration oil or the refrigerant gas of drawing from oil eliminator, through the high pressure nozzle ejection, be reduced between high pressure nozzle and the Venturi tube by flow velocity and produce negative pressure, driven fluid inlet in the injector housing is introduced refrigeration oil and refrigerant mixture, and mixture enters compressor behind the Venturi tube diffusion.
The utility model compact conformation, parts are brass and red copper, and be easy to process, connects by braze, reliable.Nozzle and Venturi tube machining accuracy height, injection is effective.Pipeline is easy to connect during installation, occupies little space.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: the 1-high pressure nozzle; 2-injector housing; The 3-Venturi tube; 4-driving fluid inlet; 5-diffusion passage; 6-driven fluid inlet.
The specific embodiment
Embodiment, as shown in the figure, a kind of oil return injector device, comprise an injector housing 2 made from red copper with three-port structure, described injector housing 2 a wherein end is connected with the high pressure nozzle made from brass 1, the other end is connected with the Venturi tube made from brass 3, the 3rd end has driven fluid inlet 6, high pressure nozzle 1 and Venturi tube 3 adopt braze to link together with injector housing 2, and it is horizontal funnel shaped driving fluid inlet 4 that the center of described high pressure nozzle 1 is provided with the cross sectional shape that is communicated with the inner chamber of injector housing 2.The center of Venturi tube 3 is provided with the diffusion passage 5 that the cross sectional shape that is communicated with the inner chamber of injector housing 2 is horizontal horn shape.
During unit operation, the high pressure refrigeration oil or the refrigerant gas of drawing from oil eliminator, through 4 ejections of the inlet of the driving fluid on the high pressure nozzle 1, be reduced between high pressure nozzle 1 and the Venturi tube 3 by flow velocity and produce negative pressure, driven fluid inlet 6 in the injector housing is introduced refrigeration oil and refrigerant mixtures, mixture through the Venturi tube diffusion after diffusion passage 5 enters compressor.
Claims (5)
1. oil return injector device, comprise an injector housing (2) with three-port structure, it is characterized in that: described injector housing (a 2) wherein end is connected with high pressure nozzle (1), and the other end is connected with Venturi tube (3), and the 3rd end has driven fluid inlet (6).
2. a kind of oil return injector device according to claim 1 is characterized in that: the center of described high pressure nozzle (1) is provided with the driving fluid inlet (4) that is communicated with the inner chamber of injector housing (2).
3. a kind of oil return injector device according to claim 2 is characterized in that: the cross sectional shape of described driving fluid inlet (4) is horizontal funnel shaped.
4. a kind of oil return injector device according to claim 1 and 2 is characterized in that: the center of Venturi tube (3) is provided with the diffusion passage (5) that is communicated with the inner chamber of injector housing (2).
5. a kind of oil return injector device according to claim 4 is characterized in that: the cross sectional shape of diffusion passage (5) is horizontal horn shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200294847U CN201508083U (en) | 2009-07-20 | 2009-07-20 | Oil-return ejector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200294847U CN201508083U (en) | 2009-07-20 | 2009-07-20 | Oil-return ejector device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508083U true CN201508083U (en) | 2010-06-16 |
Family
ID=42469210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200294847U Expired - Fee Related CN201508083U (en) | 2009-07-20 | 2009-07-20 | Oil-return ejector device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201508083U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401511A (en) * | 2010-09-07 | 2012-04-04 | 珠海格力电器股份有限公司 | Oil return system for centrifugal cold water unit |
| CN104792074A (en) * | 2014-12-31 | 2015-07-22 | 江苏春兰动力制造有限公司 | Ejecting oil scavenger of flooded evaporator for screw water chiller |
| CN110067792A (en) * | 2019-04-26 | 2019-07-30 | 北京勤泽鸿翔冶金科技有限公司 | A kind of gas-liquid biphase fluid ejector pipe, transmitting device and transmission method with it |
-
2009
- 2009-07-20 CN CN2009200294847U patent/CN201508083U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401511A (en) * | 2010-09-07 | 2012-04-04 | 珠海格力电器股份有限公司 | Oil return system for centrifugal cold water unit |
| CN102401511B (en) * | 2010-09-07 | 2014-06-25 | 珠海格力电器股份有限公司 | Oil return system for centrifugal cold water unit |
| CN104792074A (en) * | 2014-12-31 | 2015-07-22 | 江苏春兰动力制造有限公司 | Ejecting oil scavenger of flooded evaporator for screw water chiller |
| CN110067792A (en) * | 2019-04-26 | 2019-07-30 | 北京勤泽鸿翔冶金科技有限公司 | A kind of gas-liquid biphase fluid ejector pipe, transmitting device and transmission method with it |
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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: SHANDONG HONGLI AIR CONDITIONING EQUIPMENT CO., LT Free format text: FORMER OWNER: YU KUIMING Effective date: 20110811 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110811 Address after: 261041 Shandong city of Weifang province high tech Zone Hui Middle Road Patentee after: Shandong Hongli Air-Conditioning Equipment Co., Ltd. Address before: 261041 Shandong city of Weifang province high tech Zone Hui Yin Road Middle Shandong Hongli air conditioning equipment Co. Ltd. Patentee before: Yu Kuiming |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG HONGLI HOT PUMP ENERGY CO., LTD. Free format text: FORMER NAME: SHANDONG HONGLI AIR CONDITIONING EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 261205 Shandong Province, Weifang city high tech Development Zone Hui Yin Road No. 2751 Patentee after: SHANDONG HONGLI PUMP ENERGY CO., LTD. Address before: 261041 Shandong city of Weifang province high tech Zone Hui Middle Road Patentee before: Shandong Hongli Air-Conditioning Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20160720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |