CN101788235B - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN101788235B CN101788235B CN2009101279196A CN200910127919A CN101788235B CN 101788235 B CN101788235 B CN 101788235B CN 2009101279196 A CN2009101279196 A CN 2009101279196A CN 200910127919 A CN200910127919 A CN 200910127919A CN 101788235 B CN101788235 B CN 101788235B
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- Prior art keywords
- center line
- header
- fluid
- distributing pipe
- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchanger, which comprises a plurality of fluid channels for heat exchange, header pipes arranged at end parts of the plurality of fluid channels and a distributor, wherein each fluid channel is provided with a fluid inlet; the fluid inlets of the plurality of fluid channels are communicated with the header pipes, and the header pipes are provided with center lines; and the distributor comprises distributing pipes, the distributing pipes are arranged in the header pipes, and the distributing pipes are positioned on one side, far away from the fluid inlets of the plurality of fluid channels, of the center lines. By adopting the structure, the mixed space of vapor-liquid two-phase refrigerant outflowing from an outlet hole is enlarged, so that the mixing is relatively uniform and the distribution of the refrigerant is uniform.
Description
Technical field
The present invention relates to a kind of heat exchanger, particularly parallel-flow evaporator.
Background technology
As shown in Fig. 1 a, parallel-flow evaporator 2 ' the comprise header 3 that is arranged on both sides.Parallel-flow evaporator 2 ' in because the cold-producing medium of import 7 is vapour-liquid two-phases,, can cause cold-producing medium in each stream 4 maldistribution if adopt inappropriate refrigerant distributor.
Conventional distributor 1 ' be to adopt a pipe to insert header 3 inside, shown in Fig. 1 b, pipe 9 ' be positioned at the center of header 3 or be positioned at the center of another header is opened the outlet opening 8 of identical big or small uniform distances in the refrigerant inlet direction upper edge of pipe distributor length.And 5 one-tenth an angle of 90 degrees of perforate direction and flat tube or over against flat tube 5, shown in Fig. 2 and 3.
Because perforate is nearer from flat tube 5 imports, the vapour-liquid two phase cold-producing mediums that come out from outlet opening also have little time to mix in header and just spray into flat tube, cause maldistribution.
Summary of the invention
The purpose of this invention is to provide a kind of heat exchanger, this heat exchanger can make the refrigerant mixed of distributor relatively even.
According to an aspect of the present invention, the invention provides a kind of heat exchanger, this heat exchanger comprises: be used for a plurality of fluid passages of heat exchange, each in described a plurality of fluid passages has fluid intake; Be arranged on the header of the end of described a plurality of fluid passages, the fluid intake of described a plurality of fluid passages is communicated with described header, and described header has center line; And distributor, described distributor comprises distributing pipe, this distributing pipe is arranged in this header, and described distributing pipe is positioned at the side away from the fluid intake of described a plurality of fluid passages of described center line.
According to a further aspect in the invention, be provided with outlet opening in the tube wall of described distributing pipe, this outlet opening cardinal principle is towards a side of fluid intake.
According to a further aspect in the invention, described fluid passage is a straight tube, and has longitudinal center line.
According to a further aspect in the invention, the longitudinal center line of the center line of described header and described fluid passage is substantially in a plane.
According to a further aspect in the invention, the longitudinal center line of described distributing pipe, the center line of header and the longitudinal center line of described fluid passage are substantially in a plane.
According to a further aspect in the invention, the angle between the longitudinal center line of the center line of described outlet opening and described fluid passage is less than about 85 degree and greater than zero degree.
According to a further aspect in the invention, the angle between the longitudinal center line of the center line of described outlet opening and described fluid passage is less than about 85 degree and greater than zero degree.
According to a further aspect in the invention, be provided with two outlet openings at the same axial location of cardinal principle in the tube wall of described distributing pipe, the center line of two outlet openings is symmetrical substantially about the longitudinal center line of described fluid passage.
According to a further aspect in the invention, the angle b between the longitudinal center line of the center line of described outlet opening and described fluid passage satisfies condition: 5 °＜b＜85 °.
According to a further aspect in the invention, the longitudinal center line of the center line of described outlet opening and described distributing pipe is in same plane.
According to a further aspect in the invention, in the center line of described two outlet openings one longitudinal center line with described distributing pipe is in a plane, and the longitudinal center line of another and described distributing pipe in the center line of described two outlet openings is in another plane.
According to a further aspect in the invention, described heat exchanger is a parallel-flow evaporator.
The present invention is by adopting said structure, strengthened the blending space of the vapour-liquid two phase refrigerant of coming out from outlet opening, makes mixing relatively even, and makes the cold-producing medium distributed uniform.
Description of drawings
Fig. 1 a-1b is the parallel-flow evaporator of prior art.
Fig. 2 is the cutaway view along the line A-A of Fig. 1, has shown a kind of orientation of outlet opening among the figure.
Fig. 3 is the cutaway view along the line A-A of Fig. 1, has shown the another kind of orientation of outlet opening among the figure.
Fig. 4 is the schematic diagram according to the part-structure of the parallel-flow evaporator of first embodiment of the invention.
Fig. 5 a and 5b are the schematic diagrames according to the part-structure of the parallel-flow evaporator of second embodiment of the invention.
Fig. 6 is the schematic diagram according to the part-structure of the parallel-flow evaporator of third embodiment of the invention.
Fig. 7 is the schematic diagram according to the part-structure of the parallel-flow evaporator of fourth embodiment of the invention.
Fig. 8 is the schematic diagram according to the part-structure of the parallel-flow evaporator of fifth embodiment of the invention.
The specific embodiment
The present invention will be further described below in conjunction with the drawings and the specific embodiments.
Fig. 4 shows the schematic diagram according to the part-structure of the parallel-flow evaporator 2 of embodiments of the invention 1.Parallel-flow evaporator comprises the flat tube 5 of the example of a plurality of fluid passages of conduct that are used for heat exchange.Described flat tube 5 has fluid intake 10 and outlet.Parallel-flow evaporator also comprises the header 3 of the end that is arranged on described flat tube 5, and the fluid intake 10 of described flat tube 5 is communicated with described header 3.Parallel-flow evaporator also comprises distributor, and described distributor comprises distributing pipe 9, and this distributing pipe 9 is arranged in this header 3, and described distributing pipe 9 is positioned at the side away from the fluid intake 10 of described flat tube 5 of the center line of described header 3.
In the example among Fig. 4, parallel-flow evaporator is uprightly placed, and distributing pipe 9 is arranged in the header 3 of downside, at this moment, distributing pipe 9 be arranged in the horizontal center line H of header 3 following or in header away from flat tube 5 sides.
In the tube wall of distributing pipe 9, be provided with outlet opening 8, distributing pipe 9 perforate directions and flat tube 5 homonymies, that is, outlet opening 8 cardinal principles are towards a side of fluid intake 10.
As shown in Figure 4.Confirm by experiment: this design has increased the distance between distributing pipe and the flat tube, has strengthened the blending space of the vapour-liquid two phase refrigerant of coming out from outlet opening 8, makes mixing relatively even.
Insert in the described header 3 end of flat tube described in Fig. 45, but flat tube 5 can adopt any suitable known way to be connected with header 3.The fluid intake 10 of flat tube 5 also is not limited in the end of flat tube 5, and as selection, fluid intake 10 also can be in the side of flat tube 5 ends, and header 3 is arranged on the side of flat tube 5 ends.
In addition, the flat tube 5 among Fig. 4 is straight tubes, and as selection, flat tube 5 also can be the pipe of other shape.Be that fluid passage of the present invention is not limited to straight tube.
In the example shown in the figure, for example, among Fig. 5 b, the longitudinal center line 14 of the center line of header 3 and flat tube 5 is substantially in a plane.As selection, the longitudinal center line of the center line of header 3 and flat tube 5 can for example can depart from certain distance mutually not in a plane.For example, the center line of header 3 is with respect to longitudinal center line translation one segment distance of flat tube 5, and thus, the center line of header 3 is offset a segment distance with respect to the longitudinal center line of flat tube 5.
In addition, in the example shown in the figure, for example, among Fig. 5 b, the longitudinal center line of distributing pipe 9, the longitudinal center line of the center line of header 3 and described flat tube 5 are substantially in a plane.Obviously, the longitudinal center line of distributing pipe 9, the longitudinal center line of the center line of header 3 and described flat tube 5 can be in a plane.For example, below in the example among Fig. 7-8, the longitudinal center line that has only the center line of header 3 and flat tube 5 is substantially in a plane.
At parallel-flow evaporator is not under the situation of upright placement as shown in FIG., and the angle between the longitudinal center line 14 of the center line of outlet opening 8 and flat tube 5 is less than about 85 degree and greater than zero degree.
In the example shown in the figure, under the upright situation of placing of parallel-flow evaporator, the center line 12 of two outlet openings 8 can be about the vertical center line V symmetry of header 3, and the angle b between the vertical center line V of the center line 12 of outlet opening 8 and header 3 satisfies condition: 5 °＜b＜85 °.As shown in Figure 6.
As mentioned above, in the example shown in the figure, for example, among Fig. 6, the longitudinal center line of distributing pipe 9, the longitudinal center line of the center line of header 3 and described flat tube 5 are substantially in a plane.Obviously, the longitudinal center line of distributing pipe 9, the longitudinal center line of the center line of header 3 and described flat tube 5 can be in a plane.
Although described several embodiments of the present invention above, the invention is not restricted to the foregoing description.For example, in the foregoing description, distributing pipe 9 and header 3 are pipe, but they also can be the pipe in any suitable other cross section, for example elliptical tube.
In addition, among the embodiment shown in the above-mentioned figure, be described and illustrate with the upright situation of placing of parallel-flow evaporator, this only is that the present invention obviously is not limited to the example shown in the figure for the convenience on describing and illustrating.
In addition, among the embodiment shown in the above-mentioned figure, the center line of described outlet opening and the longitudinal center line of described distributing pipe are in same plane, be the longitudinal center line of the center line of outlet opening by distributing pipe, as selection, the center line of outlet opening also can obstructed undue pipe arrangement longitudinal center line, but spatially have certain distance with the longitudinal center line of distributing pipe.
In addition, although toply described the present invention at parallel-flow evaporator 2, the present invention can be applied to any suitable heat exchanger.
Moreover, in the tube wall of described distributing pipe 9, being provided with under the situation of two outlet openings 8 at the same axial location of cardinal principle, the center line of two outlet openings 8 can be asymmetric about the longitudinal center line 14 of flat tube 5.
Claims (5)
1. heat exchanger comprises:
The a plurality of fluid passages that are used for heat exchange, each in described a plurality of fluid passages has fluid intake:
Be arranged on the header of the end of described a plurality of fluid passages, the fluid intake of described a plurality of fluid passages is communicated with described header, and described header has horizontal center line; And
Distributor, described distributor comprises distributing pipe, and this distributing pipe is arranged in this header, and described distributing pipe is positioned at the side away from the fluid intake of described a plurality of fluid passages of described horizontal center line, described distributing pipe is on the left side or the right side of the vertical center line of described header
In the tube wall of described distributing pipe, be provided with two outlet openings at the same axial location of cardinal principle.
2. heat exchanger according to claim 1, wherein
This outlet opening cardinal principle is towards a side of fluid intake.
3. heat exchanger according to claim 2, wherein
Described fluid passage is a straight tube, and has longitudinal center line.
4. heat exchanger according to claim 3, wherein
Angle between the center line of described outlet opening and the longitudinal center line of described fluid passage is approximately less than 85 degree and greater than zero degree.
5. heat exchanger according to claim 1, wherein
Described heat exchanger is a parallel-flow evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101279196A CN101788235B (en) | 2009-03-25 | 2009-03-25 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101279196A CN101788235B (en) | 2009-03-25 | 2009-03-25 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101788235A CN101788235A (en) | 2010-07-28 |
| CN101788235B true CN101788235B (en) | 2013-07-24 |
Family
ID=42531549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101279196A Active CN101788235B (en) | 2009-03-25 | 2009-03-25 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101788235B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564204B (en) * | 2010-12-08 | 2016-04-06 | 杭州三花微通道换热器有限公司 | Refrigerant distributing device and the heat exchanger with it |
| CN102032825A (en) * | 2011-01-10 | 2011-04-27 | 天津商业大学 | Heat exchange tube for evaporator and evaporator formed by same |
| CN103363732A (en) * | 2012-04-10 | 2013-10-23 | 珠海格力电器股份有限公司 | Liquid separation device and air conditioner comprising liquid separation device |
| CN103363733B (en) * | 2012-04-10 | 2016-03-30 | 珠海格力电器股份有限公司 | Liquid distributing device and comprise the air-conditioner of this liquid distributing device |
| CN102853572A (en) * | 2012-10-11 | 2013-01-02 | 江苏辉煌太阳能股份有限公司 | Casing pipe type heat conduction medium equal-flow runner for solar heat collector |
| CN103776206B (en) * | 2012-10-22 | 2019-03-26 | 浙江盾安人工环境股份有限公司 | A kind of refrigerant distributor |
| CN104880115B (en) * | 2014-02-27 | 2018-03-16 | 杭州三花研究院有限公司 | Flow collection pipe component and heat exchanger |
| CN108645271B (en) * | 2018-05-11 | 2019-10-11 | 西安交通大学 | A kind of inlet and outlet bobbin carriage evenly distributing flow in pipe heat exchanger pipe |
| CN112013709A (en) * | 2019-05-31 | 2020-12-01 | 浙江三花智能控制股份有限公司 | Distribution pipe and heat exchanger |
-
2009
- 2009-03-25 CN CN2009101279196A patent/CN101788235B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101788235A (en) | 2010-07-28 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: DANFOSS INC. Effective date: 20120720 Owner name: SANHUA HOLDING GROUP CO., LTD. Free format text: FORMER OWNER: DANFOSS SANHUA (HANGZHOU) MICRO-CHANNEL HEAT EXCHANGER CO., LTD. Effective date: 20120720 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 289 Applicant after: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Address before: 310018 No. 21, No. 60, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Applicant before: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. |
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Free format text: CORRECT: ADDRESS; FROM: 310018 HANGZHOU, ZHEJIANG PROVINCE TO: 312500 SHAOXING, ZHEJIANG PROVINCE |
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Effective date of registration: 20120720 Address after: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Applicant after: SANHUA HOLDING GROUP Co.,Ltd. Co-applicant after: DANFOSS A/S Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 289 Applicant before: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. |
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Owner name: HANGZHOU SANHUA MICRO CHANNEL HEAT EXCHANGER CO., Free format text: FORMER OWNER: SANHUA HOLDING GROUP CO., LTD. Effective date: 20150217 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 312500 SHAOXING, ZHEJIANG PROVINCE TO: 310018 HANGZHOU, ZHEJIANG PROVINCE |
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Effective date of registration: 20150217 Address after: 310018, No. 289-1, No. 12, Poplar Street, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Patentee after: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Patentee after: DANFOSS A/S Address before: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Patentee before: SANHUA HOLDING GROUP Co.,Ltd. Patentee before: DANFOSS A/S |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100728 Assignee: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Assignor: SANHUA HOLDING GROUP Co.,Ltd. Contract record no.: 2015990000010 Denomination of invention: Plate heat exchanger for fluids of different flow Granted publication date: 20130724 License type: Common License Record date: 20150106 |
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