CN102003844B - Efficient full-wet inner surface evaporator - Google Patents
Efficient full-wet inner surface evaporator Download PDFInfo
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- CN102003844B CN102003844B CN2010105758366A CN201010575836A CN102003844B CN 102003844 B CN102003844 B CN 102003844B CN 2010105758366 A CN2010105758366 A CN 2010105758366A CN 201010575836 A CN201010575836 A CN 201010575836A CN 102003844 B CN102003844 B CN 102003844B
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- double evaporation
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Abstract
The invention discloses an efficient full-wet inner surface evaporator which is mainly formed by connecting a refrigerant distributor, a first evaporating heat exchange pipe, a first refrigerant air return pipe, a first refrigerant air return main pipe, a gas-liquid separator and a refrigerant air return pipe in sequence. The evaporator also comprises a secondary evaporating heat exchange assembly, wherein the secondary evaporating heat exchange assembly is formed by connecting a secondary evaporating air inlet main pipe, a secondary evaporating heat exchange pipe, a secondary refrigerant air return pipe and a secondary evaporating air return main pipe; and a refrigerant entering the gas-liquid separator enters the secondary evaporating heat exchange pipe for carrying out secondary evaporation by the secondary evaporating air inlet main pipe and returns into the gas-liquid separator by syphonage. The invention has certain ingenuity on improving the heat exchange efficiency of the evaporator and solving the problems of wet compression and oil return, can improve the heat transfer performance of the evaporator and improve the performance coefficient of a unit by 15 percent or so, is not only suitable for a pure medium but also suitable for a mixed medium.
Description
Technical field
The invention belongs to refrigerating field, be specifically related to a kind of efficient complete wet inner surface evaporimeter, applicable to all fin-tube type evaporimeters.
Background technology
There is the deficiency of following several respects in existing evaporimeter: the heat exchanger tube that the first, has evaporimeter now is the level trend, and the segmentation of refrigerant air-liquid body is flowed, and heat exchange efficiency is low.The second, cold-producing medium is directly sent into compressor or gas-liquid separator after through evaporator evaporation; Because traditional refrigeration throttle valve adjustment has hysteresis and periodically concussion is unstable; The cold-producing medium that flows out evaporimeter inevitably can be taken the certain amount of fluid cold-producing medium out of; According to Dutch scholar's experimental study, even 5 ℃ of the refrigerant outlet degrees of superheat still have the certain amount of fluid cold-producing medium in the refrigerant vapour.If what compressor sucked is moist steam, in compression process, must produce Wet Compression, and Wet Compression can cause all bad consequences, produce liquid hammer when serious, towards the cylinder accident, even destroy, when actual motion, forbid to take place.Three, the compressor oil return effect of existing evaporimeter is bad.
Summary of the invention
Goal of the invention: the objective of the invention is to deficiency, a kind of efficient complete wet inner surface evaporimeter that can effectively avoid Wet Compression is provided to prior art.
Technical scheme: efficient complete wet inner surface evaporimeter of the present invention; Mainly be connected in sequence by refrigerant distributor, flush distillation heat exchanger tube, muffler of cold-producing medium, return-air house steward of cold-producing medium, gas-liquid separator and cold-producing medium muffler; Said evaporimeter also comprises the double evaporation-cooling heat-exchanging component; Said double evaporation-cooling heat-exchanging component is formed by connecting double evaporation-cooling inlet manifold, double evaporation-cooling heat exchanger tube, cold-producing medium secondary muffler, double evaporation-cooling return-air house steward; The cold-producing medium that enters into said gas-liquid separator by return-air house steward of said cold-producing medium enters into said double evaporation-cooling heat exchanger tube through said double evaporation-cooling inlet manifold again and carries out double evaporation-cooling, returns in the said gas-liquid separator through said secondary muffler and said double evaporation-cooling return-air house steward successively through siphonage at last.
In order further to strengthen the heat exchange effect; Improve heat exchange efficiency; Said flush distillation heat exchanger tube and said double evaporation-cooling heat exchanger tube are vertical the trend and distribute; Cold-producing medium vertically flows and can make refrigerant liquid and gas fully mix, and avoid the segmentation of refrigerant air-liquid body to flow, and the heat exchange efficiency of liquid refrigerant and tube wall is far longer than the heat exchange efficiency of gas refrigerant and heat exchanger tube.
In order to solve compressor oil return problem; The present invention adopts particular design: said cold-producing medium muffler socket joint is connected on the said gas-liquid separator; Said cold-producing medium muffler is provided with U type elbow in the inner part of said gas-liquid separator; Lower end at U type elbow has spill port, and the cold-producing medium flow at high speed is taken back compressor with lubricating oil in the gas-liquid separator.
The cold-producing medium drop is deposited to the gas-liquid separator bottom, and in order to prevent that the flow at high speed cold-producing medium from driving deposited liquid and splashing, the inner refrigerant inlet place of said gas-liquid separator is provided with liquid barrier.
The present invention compared with prior art; Its beneficial effect is: 1, because traditional refrigeration throttle valve adjustment has hysteresis and periodically concussion is unstable; The cold-producing medium that flows out evaporimeter inevitably can be taken the certain amount of fluid cold-producing medium out of; The present invention uses the method for double evaporation-cooling to solve the problem of compressor Wet Compression, thereby guarantees the normal safe operation of compressor.2, with respect to traditional evaporimeter; The present invention adopts cold-producing medium vertically to flow; Advantage is that vertical the flowing of cold-producing medium can make refrigerant liquid and gas fully mix; Avoid the segmentation of refrigerant air-liquid body to flow, and the heat exchange efficiency of liquid refrigerant and tube wall is far longer than the heat exchange efficiency of gas refrigerant and heat exchanger tube.3, the present invention establishes U type elbow on the cold-producing medium muffler, and has spill port in the bottom of U type elbow, has solved compressor oil return problem through the oil return of high speed flow of refrigerant.4, in sum; The present invention avoids Wet Compression and oil return problem to have certain originality improving the evaporimeter heat exchange efficiency, can improve the coefficient of performance about 15% of evaporimeter heat transfer property, raising unit; The present invention both had been applicable to pure working medium, also was applicable to mixed working fluid.
Description of drawings
Fig. 1 is the efficient complete wet inner surface evaporator system schematic diagram of the present invention.
Fig. 2 is the compressor oil return apparatus sketch map of evaporimeter of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, through a most preferred embodiment, technical scheme of the present invention is elaborated, but protection scope of the present invention is not limited to said embodiment.
A kind of efficient complete wet inner surface evaporimeter; Mainly be connected in sequence by refrigerant distributor 1, flush distillation heat exchanger tube 2, muffler 3 of cold-producing medium, return-air house steward 4 of cold-producing medium, gas-liquid separator (5) and cold-producing medium muffler 10; The bottom of said gas-liquid separator 5 connects double evaporation-cooling inlet manifold 6, double evaporation-cooling heat exchanger tube 7, cold-producing medium secondary muffler 8 and double evaporation-cooling return-air house steward 9 more successively, gets back to said gas-liquid separator 5 at last; Said flush distillation heat exchanger tube 2 is vertical the trend with said double evaporation-cooling heat exchanger tube 7 and distributes; Said cold-producing medium muffler 10 socket joints are connected on the said gas-liquid separator 5; Said cold-producing medium muffler 10 is provided with U type elbow in said gas-liquid separator 5 inner parts; Lower end at U type elbow has spill port 12, and the cold-producing medium flow at high speed is taken back compressor with lubricating oil in the gas-liquid separator 5.
Liquid refrigerant is through the choke valve refrigerant distributor 1 of flowing through; Be assigned in the different flush distillation heat exchanger tubes 2; Flush distillation heat exchanger tube 2 inner refrigerants vertically flow; Along with the flow of refrigerant liquid refrigerant evaporates gradually, gas refrigerant mixes with liquid refrigerant each other, adds strong disturbance and has the effect that strengthens heat exchange.Return-air house steward 4 of cold-producing medium is got back to through muffler 3 of cold-producing medium in cold-producing medium evaporation back, sends into gas-liquid separator 5 then.
Because gas-liquid separator 5 calibers are more than 5 times of return-air house steward 4 calibers of cold-producing medium; Band liquid cold-producing medium gets into gas-liquid separator 5 back speed to be reduced; The cold-producing medium drop is deposited to gas-liquid separator 5 bottoms, and the refrigerant inlet place establishes liquid barrier 13 and prevents that the flow at high speed cold-producing medium from driving deposited liquid and splashing; The cold-producing medium that enters into said gas-liquid separator 5 by return-air house steward 4 of said cold-producing medium enters into said double evaporation-cooling heat exchanger tube 7 through said double evaporation-cooling inlet manifold 6 again and carries out double evaporation-cooling; Liquid refrigerant is through the evaporation of secondary heat exchange pipe; Density reduces, and returns in the said gas-liquid separator 5 with said double evaporation-cooling return-air house steward 9 through said secondary muffler 8 successively through siphonage at last.
As stated, although represented and explained the present invention that with reference to specific preferred embodiment it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the accompanying claims definition, can make various variations in form with on the details to it.
Claims (4)
1. efficient complete wet inner surface evaporimeter; Mainly be connected in sequence by refrigerant distributor (1), flush distillation heat exchanger tube (2), a muffler of cold-producing medium (3), a return-air house steward of cold-producing medium (4), gas-liquid separator (5) and cold-producing medium muffler (10); It is characterized in that: said evaporimeter also comprises the double evaporation-cooling heat-exchanging component; Said double evaporation-cooling heat-exchanging component is formed by connecting double evaporation-cooling inlet manifold (6), double evaporation-cooling heat exchanger tube (7), cold-producing medium secondary muffler (8), double evaporation-cooling return-air house steward (9); The cold-producing medium that enters into said gas-liquid separator (5) by a return-air house steward of said cold-producing medium (4) enters into said double evaporation-cooling heat exchanger tube (7) through said double evaporation-cooling inlet manifold (6) again and carries out double evaporation-cooling, passes through said secondary muffler (8) successively through siphonage at last and said double evaporation-cooling return-air house steward (9) returns in the said gas-liquid separator (5).
2. efficient complete wet inner surface evaporimeter according to claim 1, it is characterized in that: said flush distillation heat exchanger tube (2) and said double evaporation-cooling heat exchanger tube (7) are vertical the trend and distribute.
3. efficient complete wet inner surface evaporimeter according to claim 1 and 2; It is characterized in that: said cold-producing medium muffler (10) socket joint is connected on the said gas-liquid separator (5); Said cold-producing medium muffler (10) is provided with U type elbow in the inner part of said gas-liquid separator (5); Have spill port (12) in the lower end of U type elbow, the cold-producing medium flow at high speed is taken back compressor with the interior lubricating oil of gas-liquid separator (5).
4. efficient complete wet inner surface evaporimeter according to claim 3, it is characterized in that: the inner refrigerant inlet place of said gas-liquid separator (5) is provided with liquid barrier (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105758366A CN102003844B (en) | 2010-12-07 | 2010-12-07 | Efficient full-wet inner surface evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105758366A CN102003844B (en) | 2010-12-07 | 2010-12-07 | Efficient full-wet inner surface evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102003844A CN102003844A (en) | 2011-04-06 |
| CN102003844B true CN102003844B (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105758366A Expired - Fee Related CN102003844B (en) | 2010-12-07 | 2010-12-07 | Efficient full-wet inner surface evaporator |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3013812B1 (en) * | 2013-11-22 | 2019-03-15 | Dynaes | HEAT PUMP. |
| CN104236173B (en) * | 2014-09-19 | 2017-04-05 | 西安交通大学 | A kind of wind-cooled evaporator with gas-liquid separator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4690209A (en) * | 1985-03-18 | 1987-09-01 | Martin Cory I | Air conditioner evaporator system |
| US6116048A (en) * | 1997-02-18 | 2000-09-12 | Hebert; Thomas H. | Dual evaporator for indoor units and method therefor |
| CN100491886C (en) * | 2007-07-19 | 2009-05-27 | 清华大学 | Canal evaporator |
| CN201281498Y (en) * | 2008-10-08 | 2009-07-29 | 天津商业大学 | Recirculation evaporator |
| CN201954847U (en) * | 2010-12-07 | 2011-08-31 | 东南大学 | High efficiency full-moisture inner surface evaporator |
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2010
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| CN102003844A (en) | 2011-04-06 |
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