CN101782335B - Micro-channel heat exchanger and flat pipe thereof - Google Patents
Micro-channel heat exchanger and flat pipe thereof Download PDFInfo
- Publication number
- CN101782335B CN101782335B CN200910002437.8A CN200910002437A CN101782335B CN 101782335 B CN101782335 B CN 101782335B CN 200910002437 A CN200910002437 A CN 200910002437A CN 101782335 B CN101782335 B CN 101782335B
- Authority
- CN
- China
- Prior art keywords
- micro
- flat tube
- heat exchanger
- channel heat
- header
- 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
Links
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a flat pipe for a micro-channel heat exchanger. The flat pipe is provided with two end parts suitable to be inserted in a collecting pipe of the micro-channel heat exchanger; a plurality of micro-channels are arranged in the flat pipe; and a lateral wall of at least one end part is provided with a plurality of small holes communicated with the plurality of micro-channels. The lateral wall of the end part of the flat pipe inserted in the collecting pipe is provided with a plurality of small holes along which working mediums in the collecting pipe flow into the micro-channels in each direction rather than converge to flow into the micro-channels from the end surface of the end part of the flat pipe, so the pressure drop of the working mediums is reduced, and heat exchange efficiency of the micro-channel heat exchanger is improved correspondingly. The invention also provides the micro-channel heat exchanger with the flat pipe.
Description
Technical field
The present invention relates to a kind of heat exchanger, relate in particular to a kind of micro-channel heat exchanger and flat tube thereof.
Background technology
Micro-channel heat exchanger is compared with traditional heat exchangers, has the advantages such as heat exchange efficiency is high, working medium consumption is few.Along with people are more and more higher to the requirement of protection of the environment and the saving energy, micro-channel heat exchanger relies on the advantage of self to be used widely in a lot of industries, for example air conditioner industry, automobile industry, chemical machinery industry.Publication number is that the Chinese patent application of CN101298951 discloses a kind of like this micro-channel heat exchanger.This heat exchanger consists of upper header, lower header and the micro-channel flat and the fin between adjacent micro-channel flat that are arranged between upper and lower header.Insert respectively in header and lower header at the two ends of micro-channel flat.Working medium flows in the microchannel of flat tube from upper header or lower header.Because the cross section of header is all generally circular, in all microchannels that therefore want to allow working medium flow into flat tube, just must allow the end of flat tube be inserted into the inside of header.Working medium just can flow in all microchannels from inserting the end face of the end header like this.Yet flat tube inserts collection portion inside and also brought problem, main problem is exactly that the flat tube end of inserting in header has hindered flowing of afflux intraductal working medium, thereby causes working medium to produce larger pressure drop, the final heat exchange property that affects heat exchanger.
Therefore be necessary to provide a kind of improved structure to solve this problem.
Summary of the invention
One of object of the present invention is to provide a kind of flat tube for micro-channel heat exchanger, and this flat tube is used in the pressure loss that contributes to reduce working medium in micro-channel heat exchanger, and then improves the heat exchange efficiency of micro-channel heat exchanger.
Two of object of the present invention is to provide a kind of micro-channel heat exchanger that can improve heat exchange efficiency.
One of in order to achieve the above object, the present invention has adopted following technical scheme: a kind of flat tube for micro-channel heat exchanger, this flat tube has two ends of the header inside that is suitable for being inserted into micro-channel heat exchanger, in this flat tube, be provided with a plurality of microchannels, on the sidewall of at least one end, have some apertures, these some apertures communicate with described a plurality of microchannels.
Some apertures on the sidewall of the flat tube end of insertion header inside can make the working medium in header flow into microchannels from all directions along these apertures, and needn't intensively from the end face upper reaches of flat tube end, enter microchannel, therefore can reduce the pressure drop of working medium, correspondingly improve the heat exchange efficiency of the micro-channel heat exchanger with this flat tube.
A preferred embodiment as the present invention for the flat tube of micro-channel heat exchanger, has some apertures on the sidewall of an end of flat tube.
Another preferred embodiment as the present invention for the flat tube of micro-channel heat exchanger, all has some apertures on the sidewall of two ends of flat tube.
In order to achieve the above object two, the present invention has adopted following technical scheme: a kind of micro-channel heat exchanger, it comprises header and flat tube, two ends of flat tube are inserted into the inside of header, in flat tube, be provided with a plurality of microchannels, on the sidewall of at least one end, have some apertures, these some apertures communicate with described a plurality of microchannels.By the some apertures in flat tube end sidewalls, can reduce the pressure loss of working medium, and then improve the heat exchange efficiency of this micro-channel heat exchanger.
A preferred embodiment as micro-channel heat exchanger of the present invention, has some apertures on the sidewall of an end of flat tube.
As another preferred embodiment of micro-channel heat exchanger of the present invention, on the sidewall of two ends of flat tube, all have some apertures.
Accompanying drawing explanation
Fig. 1 is that the present invention is for the schematic perspective view of a preferred embodiment of the flat tube of micro-channel heat exchanger;
Fig. 2 is side view embodiment illustrated in fig. 1;
Fig. 3 is opposite side view embodiment illustrated in fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, it should be noted that the embodiment the following describes, just for object of the present invention is described, does not limit the meaning of the present invention.
First a preferred embodiment of micro-channel heat exchanger of the present invention is described with reference to accompanying drawing 1-3.In this embodiment, micro-channel heat exchanger comprises header, lower header (Fig. 1 shows one of them header 2), many flat tubes 1 (seeing Fig. 1) and is fixed on the fin (not shown) on flat tube 1.Flat tube 1 is between upper header and lower header and perpendicular to them.On the opposite side of upper header and lower header, have a plurality of parallel slots 21 (see Fig. 3) corresponding with many flat tubes 1 and for the end 12 (seeing Fig. 1) of flat tube 1, be inserted into the inside of upper header or lower header.Mode by welding between flat tube 1 and two headers seals and is fixed together.Upper header and lower header are all the round tubes of being made by aluminum alloy materials.Similarly, flat tube 1 is also to be made by aluminum alloy materials.Certainly, in other embodiments, header and flat tube also can be made by other material.
The flat tube 1 adopting in above-mentioned micro-channel heat exchanger embodiment is a preferred embodiment of flat tube of the present invention.As depicted in figs. 1 and 2, on every flat tube 1, be all provided with a plurality of microchannels 11 and some apertures 121.Wherein, these microchannels 11 are arranged in a row in the inside of flat tube 1 and along the extending longitudinally of flat tube 1 until be positioned at the end face 122 of the flat tube 1 of header 2 inside; These 121 of some apertures are positioned on the sidewall of an end 12 that flat tube 1 is inserted into header 2 inside.121 minutes rows are staggered to guarantee communicating 11 with microchannel for these some apertures.Like this, the part working medium mobile along header just can directly flow into microchannel 11 from aperture 121 along the flow direction of oneself, and needn't change direction, from the end face 122 of flat tube 1, flows into microchannel, therefore can reduce the pressure drop of working medium, and heat exchange efficiency is provided.
In another preferred embodiment of micro-channel heat exchanger of the present invention, flat tube is inserted on the sidewall of two ends of header inside and all has aperture 121, to further improve the efficiency of this micro-channel heat exchanger.
Without departing from the scope and spirit of the present invention, those skilled in the art are by various variations and the change of clear above-mentioned aspect of the present invention.Although introduced the present invention in conjunction with certain preferred embodiment, the present invention who it should be known that requirement is confined to these specific embodiments.In fact, within various equivalent modifications clearly, the various variations of implementing described pattern of the present invention all will fall into the scope of protection of present invention.
Claims (2)
1. the flat tube for micro-channel heat exchanger, this flat tube has two ends of the header inside that is suitable for being inserted into described micro-channel heat exchanger, in this flat tube, be provided with a plurality of microchannels, described a plurality of microchannel is respectively along the extending longitudinally of this flat tube until the both ends of the surface of this flat tube, it is characterized in that: on the sidewall of two ends of described flat tube, all have some apertures, these some apertures communicate with described a plurality of microchannels.
2. a micro-channel heat exchanger, it comprises header and flat tube, two ends of flat tube are inserted into the inside of header, in flat tube, be provided with a plurality of microchannels, described a plurality of microchannel is respectively along the extending longitudinally of this flat tube until the both ends of the surface of described flat tube, it is characterized in that: on the sidewall of two ends of described flat tube, all have some apertures, these some apertures communicate with described a plurality of microchannels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910002437.8A CN101782335B (en) | 2009-01-20 | 2009-01-20 | Micro-channel heat exchanger and flat pipe thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910002437.8A CN101782335B (en) | 2009-01-20 | 2009-01-20 | Micro-channel heat exchanger and flat pipe thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782335A CN101782335A (en) | 2010-07-21 |
| CN101782335B true CN101782335B (en) | 2014-04-02 |
Family
ID=42522431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910002437.8A Expired - Fee Related CN101782335B (en) | 2009-01-20 | 2009-01-20 | Micro-channel heat exchanger and flat pipe thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101782335B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062947A (en) * | 2017-04-28 | 2017-08-18 | 浙江大学 | A kind of micro-channel heat exchanger and the vascular refrigerator with the micro-channel heat exchanger |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1014027A1 (en) * | 1998-12-23 | 2000-06-28 | MAGNETI MARELLI CLIMATIZZAZIONE S.p.A. | Condenser for vehicle air-conditioning systems |
| CN1710367A (en) * | 2005-06-24 | 2005-12-21 | 清华大学 | Micro-path parallel current heat-exchanger for transcritical Co2 circulation and mfg. method |
-
2009
- 2009-01-20 CN CN200910002437.8A patent/CN101782335B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1014027A1 (en) * | 1998-12-23 | 2000-06-28 | MAGNETI MARELLI CLIMATIZZAZIONE S.p.A. | Condenser for vehicle air-conditioning systems |
| CN1710367A (en) * | 2005-06-24 | 2005-12-21 | 清华大学 | Micro-path parallel current heat-exchanger for transcritical Co2 circulation and mfg. method |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2001-59694A 2001.03.06 |
| JP特开2004-198021A 2004.07.15 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101782335A (en) | 2010-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018235514A1 (en) | Heat exchanger having heat transfer tube unit | |
| CN101782337A (en) | Micro-channel heat exchanger | |
| CN102706040A (en) | Heat exchanger | |
| US20190360754A1 (en) | Un-finned heat exchanger | |
| WO2019100170A1 (en) | Enhanced heat transfer surface | |
| CN101776403B (en) | Heat exchanger | |
| CN106642826A (en) | Heat exchanger | |
| WO2015106726A1 (en) | Collecting pipe assembly and heat exchanger provided with collecting pipe assembly | |
| KR20120044848A (en) | Heat exchanger and micro-channel tube for the same | |
| CN101782335B (en) | Micro-channel heat exchanger and flat pipe thereof | |
| CN201425433Y (en) | Micro-channel heat exchanger | |
| CN101782296B (en) | Micro-channel heat exchanger | |
| CN207610570U (en) | Heat exchanger, heat-exchange system and indoor heating system | |
| CN218002296U (en) | Adapter tube and micro-channel heat exchanger thereof | |
| CN211601198U (en) | Heat exchanger | |
| CN217464958U (en) | Micro-channel heat exchanger group and air conditioning system with same | |
| JP4273483B2 (en) | Heat exchanger tubes and heat exchangers | |
| US10830542B2 (en) | Method for manufacturing a multiple manifold assembly having internal communication ports | |
| CN110686549A (en) | Multi-runner rectangular fin flat tube and heat exchanger | |
| CN102401604A (en) | Heat exchanger connecting device and microchannel heat exchanger | |
| CN212457512U (en) | Heat exchange assembly and heat exchange system | |
| JP5079597B2 (en) | Heat exchanger | |
| EP3859263B1 (en) | Heat exchanger | |
| CN215572380U (en) | Flat pipe and heat exchanger | |
| WO2023125525A1 (en) | Heat exchange assembly for heat exchanger and heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: DANFOSS INC. Effective date: 20120711 Owner name: SANHUA HOLDING GROUP CO., LTD. Free format text: FORMER OWNER: HANGZHOU SANHUA MICRO-CHANNEL HEAT EXCHANGER CO., LTD. Effective date: 20120711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 289 Applicant after: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Address before: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Applicant before: DANFOSS SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DANFOSS SANHUA (HANGZHOU) MICRO-CHANNEL HEAT EXCHANGER CO., LTD. TO: HANGZHOU SANHUA MICRO-CHANNEL HEAT EXCHANGER CO., LTD. Free format text: CORRECT: ADDRESS; FROM: 310018 HANGZHOU, ZHEJIANG PROVINCE TO: 312500 SHAOXING, ZHEJIANG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20120711 Address after: 312500 Liquan, Shaoxing, Xinchang, Zhejiang Province, China 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: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU SANHUA MICRO CHANNEL HEAT EXCHANGER CO., Free format text: FORMER OWNER: SANHUA HOLDING GROUP CO., LTD. Effective date: 20150213 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 312500 SHAOXING, ZHEJIANG PROVINCE TO: 310018 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150213 Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Avenue, No. 289, No. 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 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100721 Assignee: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER Co.,Ltd. Assignor: SANHUA HOLDING GROUP Co.,Ltd. Contract record no.: 2015990000010 Denomination of invention: Micro-channel heat exchanger and flat pipe thereof Granted publication date: 20140402 License type: Common License Record date: 20150106 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20200120 |