CN102767922A - 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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- CN102767922A CN102767922A CN2012102846684A CN201210284668A CN102767922A CN 102767922 A CN102767922 A CN 102767922A CN 2012102846684 A CN2012102846684 A CN 2012102846684A CN 201210284668 A CN201210284668 A CN 201210284668A CN 102767922 A CN102767922 A CN 102767922A
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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 the air-conditioning system, particularly be used for the distributing pipe and the micro-channel heat exchanger of micro-channel heat exchanger.
Background technology
Key component in the micro-channel heat exchanger air-conditioning system, it is made up of two collector tubes, the flat pipe group that is communicated with two collector tubes and the fin that is located between the flat tube, on flat tube, is equipped with the microchannel that supplies cold-producing medium to pass through.Its operation principle is: cold-producing medium enters in this collector tube through the entrance point of a collector tube, enter into then in the micro-channel flat, in flat tube in the process of flowing with the air generation heat exchange in the external world, thereby the refrigeration of realization or heat.In ideal conditions, cold-producing medium should be assigned in the microchannel of each flat tube uniformly, to guarantee the optimum operation efficient of heat exchanger.Yet, after cold-producing medium gets into collector tube, because the influence of collector tube and flat tube resistance; In microchannel, can get into too much cold-producing medium near the flat tube of the position of collector tube entrance point; From the collector tube entrance point more in the microchannel of the flat tube of distant positions the cold-producing medium of entering few more, thereby cause cold-producing medium skewness in flat tube, thereby influenced the heat exchange efficiency of heat exchanger; It is low to cause the air-conditioning air-out to have height to have, and has influenced comfortableness.
At present, being used to improve the multiple design of refrigerant fluid through the distributing uniformity of micro-channel heat exchanger is suggested.For example: application number is: 200910159926.4, and name is called: the multi-channel heat exchanger with improved cold-producing medium distributing uniformity.This heat exchanger is a plug-in mounting distributing pipe in the collector tube of refrigerant inlet end, and its length direction is provided with a plurality of non-circular openings in the distributing pipe upper edge.Adopt above-mentioned distributing pipe to improve the uniformity that cold-producing medium distributes in the flat tube microchannel; This kind structure is specially adapted to the bigger applying working condition of refrigerant flow; But above-mentioned distributing pipe still can not realize being used for the distributing uniformity and the performance level of the rational faculty of micro-channel heat exchanger, and distributing uniformity remains further to be improved.
Summary of the invention
The present invention provides a kind of cold-producing medium distributed uniform to be used for the distributing pipe and the micro-channel heat exchanger of micro-channel heat exchanger efficiently for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The distributing pipe that is used for micro-channel heat exchanger; Comprise body; It is characterized in that: be provided with the demarcation strip that several piece is extended along its length direction in the said body; Said demarcation strip independently divides the space with the space segmentation in the body for several, independently is equipped with one group of through hole on the pairing tube wall in branch space at each, and the array through hole evenly distributes along the length direction of body.
Micro-channel heat exchanger; Comprise first collector tube, second collector tube, be packed in the flat pipe group that makes the connection of two collector tubes between two collector tubes and be located at the fin between the flat pipe group; Said first collector tube and second collector tube are respectively the cold-producing medium inlet pipe and cold-producing medium goes out pipe; It is characterized in that: also be fitted with distributing pipe in said first collector tube; One end of said distributing pipe is positioned at first collector tube, and the other end of said distributing pipe runs through the end cap of a side of first collector tube, and is connected with the cold-producing medium intake line in the heat exchanger outside.
The technical scheme that the present invention can also take is:
Said body is circular body, and said demarcation strip is along the radial even distribution of radially being of body.
Said through hole is circular hole or elliptical aperture.
Said body is the deltiod body, and said demarcation strip is along the parallel even distribution of the long side direction of deltiod body cross section.
Said through hole is circular hole, elliptical aperture or narrow slotted hole.
The quantity of said through hole is consistent with the quantity of flat tube, and through hole and flat tube align in radial direction one by one.
Said each independently the through hole gross area sum on the branch space with the ratio of microchannel area sum of corresponding flat tube be 0.5-1.
Advantage and good effect that the present invention has are:
Distributing pipe adopts said structure, and the cold-producing medium that gets into from the arrival end of distributing pipe is because the effect of demarcation strip, is divided to each independently in the branch space, flows out equably through the through hole on the corresponding tube wall in minute space then.When the cold-producing medium that this distributing pipe is applied in micro-channel heat exchanger flows in the header of end; The cold-producing medium that flows out from through hole enters in the microchannel of flat tube equably through the space between distributing pipe and the header; Thereby guaranteed the uniformity that cold-producing medium distributes in the flat tube microchannel, and then improved the heat exchange efficiency of micro-channel heat exchanger.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of distributing pipe;
Fig. 2 is the transverse sectional view of Fig. 1;
Fig. 3 is the structural representation of second kind of embodiment of distributing pipe;
Fig. 4 is the structural representation of micro-channel heat exchanger.
Among the figure: 1, distributing pipe; 1-1, body; 1-2, cut apart plate; 1-3, branch space; 1-4, through hole; 2, first collector tube; 3, second collector tube; 4, flat pipe group; 5, fin.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1-4, be used for the distributing pipe of micro-channel heat exchanger, comprise body 1-1.Be provided with the demarcation strip 1-2 that several piece is extended along its length direction in the said body; Said demarcation strip independently divides space 1-3 with the space segmentation in the body for several; Independently be equipped with one group of through hole 1-4 on the pairing tube wall in branch space at each, the array through hole evenly distributes along the length direction of body.
In the technique scheme: body can adopt different shapes such as circle, direction, polygon, considers that from the angle of being convenient to make and install in the present invention, body preferably adopts following two kinds of technical schemes:
1) body is circular body, and said demarcation strip is along the radial even distribution of radially being of body.Concrete, the outboard end of each demarcation strip all contacts fixing with the inwall of body, and the medial extremity of cutting apart plate collects in the center of body.Body and demarcation strip can adopt the integrally casting molding mode, also can adopt the fixing mode of the body formed back welding of branch.
When body adopted above-mentioned round tube body structure, the through hole on the tube wall can further adopt circular hole or elliptical aperture structure.
2) body is the deltiod body, and said demarcation strip is along the parallel even distribution of the long side direction of deltiod body cross section.Concrete, the two side ends of cutting apart plate is connected with the inwall on two parallel long limits of body respectively.Several are cut apart plate and are parallel distribution in the space.
When body adopted above-mentioned deltiod structure, the through hole on the tube wall can further adopt circular hole, elliptical aperture or narrow slotted hole structure.
Micro-channel heat exchanger; Comprise first collector tube 2, second collector tube 3, be packed in and make the flat pipe group 4 that two collector tubes are communicated with between two collector tubes and be located at the fin 5 between the flat tube that said first collector tube and second collector tube are respectively the cold-producing medium inlet pipe and go out to manage with cold-producing medium.Also be fitted with the distributing pipe 1 of said structure in said first collector tube, an end of said distributing pipe is positioned at first collector tube, and the other end of said distributing pipe runs through the end cap of a side of first collector tube, and is connected with the cold-producing medium intake line in the heat exchanger outside.
In the technique scheme: the quantitative relation of the quantity of through hole and flat tube and both corresponding relations on the locus on the tube wall under the situation of satisfying the demand, can be provided with flexibly.In the present invention, the quantity of the said through hole preferably quantity with flat tube is consistent, and through hole and flat tube align in radial direction one by one.Concrete, along distributing pipe axially, each through hole and each flat tube align, the cold-producing medium that flows out in this through hole enters in the microchannel of this flat tube through the shortest distance.
The area of the area of through hole and flat tube microchannel can rationally be provided with according to the size of the charging quantity of cold-producing medium on the above-mentioned tube wall; In the present invention, said each independently the through hole gross area sum on the branch space with the ratio of microchannel area sum of corresponding flat tube be preferably 0.5-1.The microchannel area is meant that the lateral cross section of microchannel is long-pending.
Claims (8)
1. the distributing pipe that is used for micro-channel heat exchanger; Comprise body; It is characterized in that: be provided with the demarcation strip that several piece is extended along its length direction in the said body; Said demarcation strip independently divides the space with the space segmentation in the body for several, independently is equipped with one group of through hole on the pairing tube wall in branch space at each, and the array through hole evenly distributes along the length direction of body.
2. the distributing pipe that is used for micro-channel heat exchanger according to claim 1 is characterized in that: said body is circular body, and said demarcation strip is along the radial even distribution of radially being of body.
3. the distributing pipe that is used for micro-channel heat exchanger according to claim 2 is characterized in that: said through hole is circular hole or elliptical aperture.
4. the distributing pipe that is used for micro-channel heat exchanger according to claim 1 is characterized in that: said body is the deltiod body, and said demarcation strip is along the parallel even distribution of the long side direction of deltiod body cross section.
5. the distributing pipe that is used for micro-channel heat exchanger according to claim 4 is characterized in that: said through hole is circular hole, elliptical aperture or narrow slotted hole.
6. micro-channel heat exchanger; Comprise first collector tube, second collector tube, be packed in the flat pipe group that makes the connection of two collector tubes between two collector tubes and be located at the fin between the flat pipe group; Said first collector tube and second collector tube are respectively the cold-producing medium inlet pipe and cold-producing medium goes out pipe; It is characterized in that: also be fitted with in said first collector tube and adopt the arbitrary described distributing pipe of claim 1 to 5; One end of said distributing pipe is positioned at first collector tube, and the other end of said distributing pipe runs through the end cap of a side of first collector tube, and is connected with the cold-producing medium intake line in the heat exchanger outside.
7. micro-channel heat exchanger according to claim 6 is characterized in that: the quantity of said through hole is consistent with the quantity of flat tube, and through hole and flat tube align in radial direction one by one.
8. micro-channel heat exchanger according to claim 7 is characterized in that: said each independently the through hole gross area sum on the branch space with the ratio of microchannel area sum of corresponding flat tube be 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102767922A true CN102767922A (en) | 2012-11-07 |
| CN102767922B 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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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389005A (en) * | 2013-08-06 | 2013-11-13 | 杭州三花微通道换热器有限公司 | Refrigerant distribution device and heat exchanger provided with same |
| CN103776206A (en) * | 2012-10-22 | 2014-05-07 | 浙江盾安人工环境股份有限公司 | Refrigerant distributor |
| CN104406445A (en) * | 2014-11-24 | 2015-03-11 | 无锡鸿声铝业有限公司 | Aluminum finned tube heat exchanger |
| 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 |
| CN104913547A (en) * | 2015-06-10 | 2015-09-16 | 华南理工大学 | Microchannel heat exchanger with liquid separating structure |
| CN107763732A (en) * | 2017-09-15 | 2018-03-06 | 珠海格力电器股份有限公司 | Radiation air-conditioner indoor set, air-conditioning system and control method |
| CN110475915A (en) * | 2017-03-30 | 2019-11-19 | 京瓷株式会社 | The manufacturing method of tubulose sapphire component, heat exchanger, semiconductor manufacturing apparatus and tubulose sapphire component |
| 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 |
| 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 |
| 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 |
| 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 |
| CN114665194A (en) * | 2022-05-20 | 2022-06-24 | 江苏时代新能源科技有限公司 | Pipeline assembly, cooling device, battery and electric device |
| WO2022166253A1 (en) * | 2021-02-03 | 2022-08-11 | 珠海格力电器股份有限公司 | Air conditioning pipeline and air conditioner |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103776206A (en) * | 2012-10-22 | 2014-05-07 | 浙江盾安人工环境股份有限公司 | Refrigerant distributor |
| 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 |
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| 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 |
| CN110475915A (en) * | 2017-03-30 | 2019-11-19 | 京瓷株式会社 | The manufacturing method of tubulose sapphire component, heat exchanger, semiconductor manufacturing apparatus and tubulose sapphire component |
| CN110475915B (en) * | 2017-03-30 | 2021-11-02 | 京瓷株式会社 | Tubular sapphire member, heat exchanger, semiconductor manufacturing apparatus, 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 set, air-conditioning system and control method |
| 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 |
| 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 |
| 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 |
| 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 |
| WO2022166253A1 (en) * | 2021-02-03 | 2022-08-11 | 珠海格力电器股份有限公司 | Air conditioning pipeline and air conditioner |
| CN114665194A (en) * | 2022-05-20 | 2022-06-24 | 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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