CN103047799B - Flooded evaporator automatic oil-return device and using method - Google Patents
Flooded evaporator automatic oil-return device and using method Download PDFInfo
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- CN103047799B CN103047799B CN201210572281.9A CN201210572281A CN103047799B CN 103047799 B CN103047799 B CN 103047799B CN 201210572281 A CN201210572281 A CN 201210572281A CN 103047799 B CN103047799 B CN 103047799B
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Abstract
The present invention relates to a kind of flooded evaporator automatic oil-return device and using method, the form of one or several highly different oil return interfaces is opened in the existing middle and lower part in cylinder radial direction, all location is unreasonable for these oil return interfaces, there is back the phenomenon of liquid, air-breathing and can not effectively oil return, cause heat transfer property to decline.Technical solution of the present invention have employed the oil return technology being driven telescopic tube automatic telescopic height by floating block, and compressor, when different load runs, makes refrigeration oil continuously effectively oil return.It is made up of with the oil return adapter be associated telescopic tube and floating block.Improve the efficiency of 15-20% than existing oil return opening form, is a kind of compact conformation, and fabrication and installation are convenient, the energy saver that processing cost is low.
Description
Technical field
The present invention relates to the evaporator in a kind of refrigeration plant, particularly relate to the automatic oil-return device in a kind of flooded evaporator and using method.
Background technology
Refrigeration air-conditioner is widely used in daily life.Cylindric flooded evaporator is the critical piece in refrigeration system, it is made up of cylinder, oil return apparatus, steam-generating bank, support plate, two ends tube sheet, bobbin carriage, bearing and corresponding adapter, and the whether timely and effective oil return of the refrigeration oil wherein in cylinder is by the utilization rate of the performance and steam-generating bank that directly have influence on flooded evaporator.
In flooded evaporator manufacture process, the oil return adopted at present usually remains the defect in following: when 1) running at different load due to compressor, liquid level in flooded evaporator cylinder is different, the height of oil-enriched layer is also constantly changed, causing can not effectively oil return, causes heat transfer property to decline; 2) form of one or several highly different oil return interfaces is opened in the existing middle and lower part in cylinder radial direction, all location is unreasonable for these oil return interfaces, there is back the phenomenon of liquid, air-breathing and can not effectively oil return, cause efficiency to reduce and compressor oil starvation and increase energy consumption.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, a kind of simple for structure, compact, effective flooded evaporator automatic oil-return device and using method is provided to be purposes of the present invention.Technical solution of the present invention is by the automatic oil-return device in flooded evaporator cylinder, makes compressor when different load runs, and refrigeration oil can continuously effectively oil return, reduces the concentration of oil-enriched layer, effectively improves heat transfer property and the efficiency of evaporimeter.Technical scheme of the present invention carrys out specific implementation by following technical measures, a kind of flooded evaporator automatic oil-return device, it is characterized in that it is made up of with the oil return adapter 1 be associated telescopic tube 2 and floating block 3, described telescopic tube 2 is different by 2-5 external diameter, hollow circular-tube head and the tail with shoulder are nested, and can automatic telescopic height, the total height of the hollow circular-tube of each band shoulder is 20mm-200mm, the height of shoulder is 1.5mm-3mm, the wall thickness of pipe is 0.5mm-1.5mm, the external diameter of telescopic tube 2 first band shoulder pipe adjusts according to the different inner diameters of oil return adapter 1, the number of pipe is chosen according to the size of evaporimeter cylinder is different with liquid level, floating block 3 is hemispheres of a band spill port, and oil return aperture is 3mm-8mm, and the internal diameter of hemisphere external diameter and oil return adapter 1 is suitable, the composition of automatic oil-return device is communicated with oil return adapter connection by the first band shoulder pipe of telescopic tube, choose 2-5 band shoulder pipe from big to small head and the tail be nested, the gap that is nested is 0.25mm, and the tail end of telescopic tube connects with floating block and communicates.
Flooded evaporator automatic oil-return device of the present invention and using method are: compressor is when different load runs, low pressure refrigerant in flooded evaporator cylinder is different with the liquid level oil-enriched layer height that refrigeration oil mixture is formed, by the spill port in floating block 3 on liquid level oil-enriched layer, floating block 3 drives telescopic tube 2 simultaneously, refrigeration oil is made to flow into oil return adapter 1 through telescopic tube 2, then by the process of external injection to compressor.
The invention has the beneficial effects as follows, this flooded evaporator automatic oil-return device have employed the oil return technology being driven telescopic tube automatic telescopic height by floating block, compressor is when different load runs, make refrigeration oil continuously effectively oil return, reduce the concentration of oil-enriched layer, effectively improve heat transfer property and the efficiency of evaporimeter.Improve the efficiency of 15-20% than existing oil return opening form, is a kind of compact conformation, and fabrication and installation are convenient, the energy saver that processing cost is low.
Accompanying drawing explanation
The axial section structural representation of Fig. 1, flooded evaporator automatic oil-return device embodiment of the present invention.
In accompanying drawing, each legend marks the meaning be expressed as follows respectively:
1----oil return adapter, 2----telescopic tube, 3----floating block.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described:
The present embodiment is that to be applied in refrigerating capacity be 520kW to one, model is the flooded evaporator automatic oil-return device in EMZ0520H refrigeration air-conditioner process, it is made up of with the oil return adapter 1 be associated telescopic tube 2 and floating block 3, described telescopic tube 2 is nested by 3 external diameter hollow circular-tube head and the tail that are different, band shoulder, and can automatic telescopic height, the total height of each band shoulder pipe is 25mm, the height of shoulder is 1.5mm, the wall thickness of pipe is 1mm, and the external diameter of telescopic tube 2 first band shoulder pipe is respectively Ф 20mm and Ф 17mm; Floating block 3 is hemispheres of a band spill port, and oil return aperture is 5mm, and hemisphere external diameter is Ф 20mm; The structure installment that each parts be associated provide by accompanying drawing 1, wherein: the first band shoulder pipe of telescopic tube 2 is connected with oil return adapter 1 and communicates, choose 3 band shoulder pipes from big to small head and the tail be nested, the gap that is nested is 0.25mm, and the tail end of telescopic tube 2 connects with floating block 3 and communicates.
The using method of the present embodiment is: compressor is when different load runs, low pressure refrigerant in flooded evaporator cylinder is different with the liquid level oil-enriched layer height that refrigeration oil mixture is formed, by the spill port in floating block 3 on liquid level oil-enriched layer, floating block 3 drives telescopic tube 2 simultaneously, refrigeration oil is made to flow into oil return adapter 1 through telescopic tube 2, then by the process of external injection to compressor.
The present embodiment compact conformation, fabrication and installation are convenient, and processing cost is low, improves the efficiency of 15-20% than existing oil return interface.
Claims (2)
1. a flooded evaporator automatic oil-return device, it is characterized in that it is taken over (1) by telescopic tube (2) and floating block (3) and the oil return that is associated and forms, described telescopic tube (2) is different by 2-5 external diameter, hollow circular-tube head and the tail with shoulder are nested, and can automatic telescopic height, the total height of the hollow circular-tube of each band shoulder is 20mm-200mm, the height of shoulder is 1.5mm-3mm, the wall thickness of pipe is 0.5mm-1.5mm, the external diameter of telescopic tube (2) first band shoulder pipe adjusts according to the different inner diameters of oil return adapter (1), the number of pipe is chosen according to the size of evaporimeter cylinder is different with liquid level, floating block (3) is the hemisphere of a band spill port, and oil return aperture is 3mm-8mm, and the internal diameter that (1) is taken in hemisphere external diameter and oil return is suitable, the composition of automatic oil-return device is communicated with oil return adapter connection by the first band shoulder pipe of telescopic tube, choose 2-5 band shoulder pipe from big to small head and the tail be nested, the gap that is nested is 0.25mm, and the tail end of telescopic tube connects with floating block and communicates.
2. the using method of a flooded evaporator automatic oil-return device according to claim 1, it is characterized in that compressor is when different load runs, low pressure refrigerant in flooded evaporator cylinder is different with the liquid level oil-enriched layer height that refrigeration oil mixture is formed, by the spill port in floating block (3) on liquid level oil-enriched layer, floating block (3) drives telescopic tube (2) simultaneously, refrigeration oil is made to flow into oil return adapter (1) through telescopic tube (2), then by the process of external injection to compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572281.9A CN103047799B (en) | 2012-12-26 | 2012-12-26 | Flooded evaporator automatic oil-return device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572281.9A CN103047799B (en) | 2012-12-26 | 2012-12-26 | Flooded evaporator automatic oil-return device and using method |
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| Publication Number | Publication Date |
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| CN103047799A CN103047799A (en) | 2013-04-17 |
| CN103047799B true CN103047799B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210572281.9A Active CN103047799B (en) | 2012-12-26 | 2012-12-26 | Flooded evaporator automatic oil-return device and using method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338161B (en) * | 2016-10-28 | 2018-01-23 | 珠海格力电器股份有限公司 | Oil return device and air conditioning unit |
| CN110220337B (en) * | 2019-07-11 | 2024-07-05 | 格兰立方能源科技(江苏)有限公司 | Novel floating oil return device for flooded evaporator |
| CN110906591A (en) * | 2019-11-04 | 2020-03-24 | 珠海格力电器股份有限公司 | Full-liquid-level injection backflow device and method and air conditioner |
| CN111219911B (en) * | 2020-01-09 | 2020-12-11 | 珠海格力电器股份有限公司 | Injection oil return device and refrigeration equipment |
| CN112254378A (en) * | 2020-09-15 | 2021-01-22 | 南京师范大学 | Compound flooded evaporator and refrigerating device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784831Y (en) * | 2005-01-12 | 2006-05-31 | 南京天加空调设备有限公司 | Flooded evaporator with oil return device |
| CN201583040U (en) * | 2009-11-19 | 2010-09-15 | 同方人工环境有限公司 | Refrigerating unit using high-efficiency oil-return flooded evaporator |
| CN202397143U (en) * | 2011-12-21 | 2012-08-29 | 南京鹏力塑料科技有限公司 | Flexible straw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08247577A (en) * | 1995-03-07 | 1996-09-27 | Mitsubishi Electric Corp | Evaporator for refrigerating machine |
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2012
- 2012-12-26 CN CN201210572281.9A patent/CN103047799B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784831Y (en) * | 2005-01-12 | 2006-05-31 | 南京天加空调设备有限公司 | Flooded evaporator with oil return device |
| CN201583040U (en) * | 2009-11-19 | 2010-09-15 | 同方人工环境有限公司 | Refrigerating unit using high-efficiency oil-return flooded evaporator |
| CN202397143U (en) * | 2011-12-21 | 2012-08-29 | 南京鹏力塑料科技有限公司 | Flexible straw |
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| CN103047799A (en) | 2013-04-17 |
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