CN102767922B - Distributing pipe for micro-channel heat exchanger and micro-channel heat exchanger - Google Patents
Distributing pipe for micro-channel heat exchanger and micro-channel heat exchanger Download PDFInfo
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- CN102767922B CN102767922B CN201210284668.4A CN201210284668A CN102767922B CN 102767922 B CN102767922 B CN 102767922B CN 201210284668 A CN201210284668 A CN 201210284668A CN 102767922 B CN102767922 B CN 102767922B
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Abstract
The invention relates to a distributing pipe for a micro-channel heat exchanger and the micro-channel heat exchanger. The distributing pipe comprises a pipe body. Multiple partition plates extending along the length direction are arranged in the pipe body and divide a space in the pipe body into multiple independent sub-spaces, a pipe wall corresponding to each independent sub-space is provided with a group of through holes, and multiple groups of through holes are evenly distributed along the length direction of the pipe body. The micro-channel heat exchanger comprises a first liquid collecting pipe, a second liquid collecting pipe, a flat pipe group and fins, wherein the distributing pipe is inserted into the first liquid collecting pipe. By adopting the structure, a refrigerant entering from the inlet end is distributed to the independent sub-spaces due to the action of the partition plates and then evenly flows out of the through holes on the pipe wall. When the distributing pipe is applied to a collecting pipe at the refrigerant flowing-in end of the micro-channel heat exchanger, the refrigerant flowing out of the through holes evenly enters micro-channels of flat pipes through gaps between the distributing pipe and the collecting pipe, thereby ensuring uniformity degree of the refrigerant in the micro-channels of the flat pipes and improving the heat exchange efficiency of the micro-channel heat exchanger.
Description
Technical field
The present invention relates to the heat-exchanger rig in air-conditioning system, particularly for distributing pipe and the micro-channel heat exchanger of micro-channel heat exchanger.
Background technology
Key component in micro-channel heat exchanger air-conditioning system, it is made up of two collector tubes, the flat pipe group being communicated with two collector tubes and the fin be located between flat tube, and flat tube is equipped with the microchannel passed through for cold-producing medium.Its operation principle is: cold-producing medium enters in this collector tube by the entrance point of a collector tube, then enters in micro-channel flat, with the air generation heat exchange in the external world in the process of flat Bottomhole pressure, thus realizes refrigeration or heats.In ideal conditions, cold-producing medium should be assigned in the microchannel of each flat tube uniformly, to ensure the maximum efficiency of heat exchanger.But, after cold-producing medium enters collector tube, due to the impact of collector tube and flat tube resistance, too much cold-producing medium can be entered in the microchannel of the flat tube of the position near collector tube entrance point, the cold-producing medium entered in the microchannel of the collector tube entrance point more flat tube of distant positions is fewer, thus causes cold-producing medium skewness in flat tube, thus have impact on the heat exchange efficiency of heat exchanger, cause air conditioning exhausting to have height to have low, have impact on comfortableness.
At present, be suggested for improvement of the multiple design of refrigerant fluid by the distributing uniformity of micro-channel heat exchanger.Such as: application number is: 200910159926.4, and name is called: the multi-channel heat exchanger with the cold-producing medium distributing uniformity of improvement.This heat exchanger is plug-in mounting distributing pipe in the collector tube of refrigerant inlet end, and distributing pipe is provided with multiple non-circular openings along its length.The uniformity adopting above-mentioned distributing pipe to improve cold-producing medium to distribute in flat tube microchannel, this kind of structure is specially adapted to the larger applying working condition of refrigerant flow, but above-mentioned distributing pipe still can not realize distributing uniformity for the rationality of micro-channel heat exchanger and performance level, distributing uniformity needs to be improved further.
Summary of the invention
The present invention provides a kind of cold-producing medium distributed uniform efficiently for distributing pipe and the micro-channel heat exchanger of micro-channel heat exchanger for solving in known technology the technical problem that exists.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
For the distributing pipe of micro-channel heat exchanger, comprise body, it is characterized in that: in described body, be provided with the demarcation strip that several piece extends along its length, compartition in body is several independently point space by described demarcation strip, each tube wall independently corresponding to point space is equipped with one group of through hole, and array through hole is uniformly distributed along the length direction of body.
Micro-channel heat exchanger, comprise the first collector tube, the second collector tube, the flat pipe group being packed in the chien shih two collector tube connection of two collector tubes and the fin be located between flat pipe group, described first collector tube and the second collector tube are respectively cold-producing medium inlet pipe and cold-producing medium goes out pipe, it is characterized in that: in described first collector tube, be also fitted with distributing pipe, one end of described distributing pipe is positioned at the first collector tube, the other end of described distributing pipe runs through the end cap of the side of the first collector tube, and is connected with the cold-producing medium intake line outside heat exchanger.
The technical scheme that the present invention can also take is:
Described body is circular body, and described demarcation strip is radially uniformly distributed along the radial direction of body.
Described through hole is circular hole or elliptical aperture.
Described body is deltiod body, and described demarcation strip is uniformly distributed along the long side direction of deltiod body cross section is parallel.
Described through hole is circular hole, elliptical aperture or long narrow hole.
The quantity of described through hole is consistent with the quantity of flat tube, and through hole and flat tube align one by one in radial direction.
Described each ratio independently dividing the microchannel area sum of through hole gross area sum spatially and corresponding flat tube is 0.5-1.
The advantage that the present invention has and good effect are:
Distributing pipe adopts said structure, and the cold-producing medium entered from the arrival end of distributing pipe, due to the effect of demarcation strip, is divided to each independently in point space, is then flowed out equably by the through hole on point space correspondence tube wall.Time in the header that the cold-producing medium inflow this distributing pipe being applied in micro-channel heat exchanger is held, the cold-producing medium flowed out from through hole is entered in the microchannel of flat tube equably by the space between distributing pipe and header, thus ensure that the uniformity that cold-producing medium distributes in flat tube microchannel, and then improve the heat exchange efficiency of micro-channel heat exchanger.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of distributing pipe;
Fig. 2 is the transverse sectional view of Fig. 1;
Fig. 3 is the structural representation of the second embodiment of distributing pipe;
Fig. 4 is the structural representation of micro-channel heat exchanger.
In figure: 1, distributing pipe; 1-1, body; 1-2, fragmenting plate; 1-3, point space; 1-4, through hole; 2, the first collector tube; 3, the second collector tube; 4, flat pipe group; 5, fin.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-4, for the distributing pipe of micro-channel heat exchanger, comprise body 1-1.The demarcation strip 1-2 that several piece extends along its length is provided with in described body, compartition in body is several independently point space 1-3 by described demarcation strip, each tube wall independently corresponding to point space is equipped with one group of through hole 1-4, and array through hole is uniformly distributed along the length direction of body.
In technique scheme: body can adopt the various shapes such as circle, direction, polygon, consider from the angle being convenient to manufacture and install, in the present invention, body preferably adopts the following two kinds technical scheme:
1) body is circular body, and described demarcation strip is radially uniformly distributed along the radial direction of body.Concrete, the outboard end of each demarcation strip is all fixed with the contact internal walls of body, and the medial extremity of fragmenting plate collects in the center of body.Body and demarcation strip can adopt integrally casting molding mode, also can adopt point body formed after the mode that is welded and fixed.
When body adopts above-mentioned round tube body structure, the through hole on tube wall can adopt circular hole or elliptical aperture structure further.
2) body is deltiod body, and described demarcation strip is uniformly distributed along the long side direction of deltiod body cross section is parallel.Concrete, the two side ends of fragmenting plate is connected with the inwall on two parallel long limits of body respectively.Several fragmenting plate is parallel distribution in space.
When body adopts above-mentioned deltiod structure, the through hole on tube wall can adopt circular hole, elliptical aperture or long narrow pore structure further.
Micro-channel heat exchanger, comprise the first collector tube 2, second collector tube 3, be packed in the flat pipe group 4 that chien shih two collector tube of two collector tubes is communicated with and the fin 5 be located between flat tube, described first collector tube and the second collector tube are respectively cold-producing medium inlet pipe and cold-producing medium goes out pipe.Also be fitted with the distributing pipe 1 of said structure in described first collector tube, one end of described distributing pipe is positioned at the first collector tube, and the other end of described distributing pipe runs through the end cap of the side of the first collector tube, and is connected with the cold-producing medium intake line outside heat exchanger.
In technique scheme: the quantity of through hole and the quantitative relation of flat tube and both corresponding relations on locus on tube wall, when satisfying the demand, can be arranged flexibly.In the present invention, the quantity of described through hole is preferably consistent with the quantity of flat tube, and through hole and flat tube align one by one in radial direction.Concrete, along the axis of distributing pipe, each through hole and each flat tube align, and the cold-producing medium flowed out in this through hole is entered in the microchannel of this flat tube by the shortest distance.
On above-mentioned tube wall, the area of through hole and the area of flat tube microchannel rationally can be arranged according to the size of the charging quantity of cold-producing medium, in the present invention, described each ratio of the microchannel area sum of through hole gross area sum spatially and corresponding flat tube that independently divides is preferably 0.5-1.Microchannel area refers to the transverse cutting area of microchannel.
Claims (8)
1. for the distributing pipe of micro-channel heat exchanger, comprise body, it is characterized in that: in described body, be provided with the demarcation strip that several piece extends along its length, compartition in body is several independently point space by described demarcation strip, each tube wall independently corresponding to point space is equipped with one group of through hole, and array through hole is uniformly distributed along the length direction of body.
2. the distributing pipe for micro-channel heat exchanger according to claim 1, is characterized in that: described body is circular body, and described demarcation strip is radially uniformly distributed along the radial direction of body.
3. the distributing pipe for micro-channel heat exchanger according to claim 2, is characterized in that: described through hole is circular hole or elliptical aperture.
4. the distributing pipe for micro-channel heat exchanger according to claim 1, is characterized in that: described body is deltiod body, and described demarcation strip is uniformly distributed along the long side direction of deltiod body cross section is parallel.
5. the distributing pipe for micro-channel heat exchanger according to claim 4, is characterized in that: described through hole is circular hole, elliptical aperture or long narrow hole.
6. micro-channel heat exchanger, comprise the first collector tube, second collector tube, the flat pipe group that chien shih two collector tube being packed in two collector tubes is communicated with and the fin be located between flat pipe group, described first collector tube and the second collector tube are respectively cold-producing medium inlet pipe and cold-producing medium goes out pipe, it is characterized in that: be also fitted with in described first collector tube and adopt the arbitrary described distributing pipe of claim 1 to 5, one end of described distributing pipe is positioned at the first collector tube, the other end of described distributing pipe runs through the end cap of the side of the first collector tube, and be connected with the cold-producing medium intake line outside heat exchanger.
7. micro-channel heat exchanger according to claim 6, is characterized in that: the quantity of described through hole is consistent with the quantity of flat tube, and through hole and flat tube align one by one in radial direction.
8. micro-channel heat exchanger according to claim 7, is characterized in that: described each ratio independently dividing the microchannel area sum of through hole gross area sum spatially and corresponding flat tube is 0.5-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284668.4A CN102767922B (en) | 2012-08-10 | 2012-08-10 | Distributing pipe for micro-channel heat exchanger and micro-channel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210284668.4A CN102767922B (en) | 2012-08-10 | 2012-08-10 | Distributing pipe for micro-channel heat exchanger and micro-channel heat exchanger |
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| Publication Number | Publication Date |
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| CN102767922A CN102767922A (en) | 2012-11-07 |
| CN102767922B true CN102767922B (en) | 2015-06-03 |
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| CN201210284668.4A Active CN102767922B (en) | 2012-08-10 | 2012-08-10 | Distributing pipe for micro-channel heat exchanger and micro-channel heat exchanger |
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| CN103389005B (en) * | 2013-08-06 | 2015-08-05 | 杭州三花微通道换热器有限公司 | Refrigerant distributing device and the heat exchanger with it |
| CN104422199A (en) * | 2013-08-30 | 2015-03-18 | 杭州三花微通道换热器有限公司 | Micro-channel heat exchanger |
| CN104406445A (en) * | 2014-11-24 | 2015-03-11 | 无锡鸿声铝业有限公司 | Aluminum finned tube heat exchanger |
| CN104913547A (en) * | 2015-06-10 | 2015-09-16 | 华南理工大学 | Microchannel heat exchanger with liquid separating structure |
| WO2018181981A1 (en) * | 2017-03-30 | 2018-10-04 | 京セラ株式会社 | Tubular sapphire member, heat exchanger, semiconductor manufacturing device and method for manufacturing tubular sapphire member |
| CN107763732A (en) * | 2017-09-15 | 2018-03-06 | 珠海格力电器股份有限公司 | Radiation air conditioner indoor unit, air conditioning system and control method |
| CN112013710A (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 |
| 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 |
| WO2020237960A1 (en) * | 2019-05-31 | 2020-12-03 | 浙江三花智能控制股份有限公司 | Distribution pipe and heat exchanger |
| JP6927352B1 (en) * | 2020-03-23 | 2021-08-25 | 株式会社富士通ゼネラル | Heat exchanger |
| JP6927353B1 (en) * | 2020-03-23 | 2021-08-25 | 株式会社富士通ゼネラル | Heat exchanger |
| CN112377916A (en) * | 2020-11-10 | 2021-02-19 | 北京动力机械研究所 | Regenerative cooling system and method based on hydrocarbon fuel deep cracking reaction flow |
| CN112747387B (en) * | 2021-02-03 | 2024-07-09 | 珠海格力电器股份有限公司 | Air conditioner pipeline and air conditioner |
| CN114665194B (en) * | 2022-05-20 | 2022-09-27 | 江苏时代新能源科技有限公司 | Pipeline assembly, cooling device, battery and electric device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001255090A (en) * | 2000-03-14 | 2001-09-21 | Sanden Corp | Heat exchanger and method of manufacturing the same |
| CN101782297B (en) * | 2009-01-19 | 2012-08-22 | 三花控股集团有限公司 | Heat exchanger |
| CN101738128B (en) * | 2009-12-25 | 2012-02-08 | 三花丹佛斯（杭州）微通道换热器有限公司 | Header pipe of heat exchanger with plurality of rows of flat pipes and heat exchanger |
| CN102384692A (en) * | 2010-09-01 | 2012-03-21 | 珠海格力电器股份有限公司 | Collecting pipe and heat exchanger with same |
| CN201828183U (en) * | 2010-09-29 | 2011-05-11 | 浙江金宸三普换热器有限公司 | Collecting pipe structure of heat exchanger |
| CN202792701U (en) * | 2012-08-10 | 2013-03-13 | 天津三电汽车空调有限公司 | Distribution pipe and microchannel heat exchanger used for microchannel heat exchanger |
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