CN202792701U - Distribution pipe and microchannel heat exchanger used for microchannel heat exchanger - Google Patents
Distribution pipe and microchannel heat exchanger used for microchannel heat exchanger Download PDFInfo
- Publication number
- CN202792701U CN202792701U CN 201220397086 CN201220397086U CN202792701U CN 202792701 U CN202792701 U CN 202792701U CN 201220397086 CN201220397086 CN 201220397086 CN 201220397086 U CN201220397086 U CN 201220397086U CN 202792701 U CN202792701 U CN 202792701U
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- heat exchanger
- pipe
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- tube
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Abstract
The utility model relates to a distribution pipe and a microchannel heat exchanger used for the microchannel heat exchanger. The distribution pipe comprises a pipe body, wherein the inside of the pipe body is provided with a plurality of division plates which extend along the length direction of the division plates, the division plates divide space inside the pipe body into a plurality of independent subsidiary space, a corresponding pipe wall of each independent subsidiary space is provided with a group of through holes, and a plurality of groups of the through holes are evenly distributed along the length direction of the pipe body. The microchannel heat exchanger comprises a first collector tube, a second collector tube, a flat tube set and fins, wherein the distribution pipe is installed inside the first collector tube in an inserting mode. By adopting the structure, refrigerants which enter from an inlet end of the distribution pipe are diverted to each independent subsidiary space under the action of the division plates, and then the refrigerants flow out evenly through the through holes on the pipe wall. When the distribution pipe is applied to the inside of a collecting pipe of a refrigerant inflow end of the microchannel heat exchanger, the refrigerants which flow out of the through holes evenly enter the inside of a microchannel of a flat tube through gaps between the distribution pipe and collecting pipe, so that distributional evenness of the refrigerants inside the microchannel of the flat tube is guaranteed, and thereby heat exchange efficiency of the microchannel heat exchanger is enhanced.
Description
Technical field
The utility model relates to the heat-exchanger rig in the air-conditioning system, particularly for 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 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, is equipped with the microchannel of passing through for cold-producing medium at flat tube.Its operation principle is: cold-producing medium enters in this collector tube by the entrance point of a collector tube, then enter in the micro-channel flat, in the process that in flat tube, flows 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 maximum efficiency of heat exchanger.Yet, after cold-producing medium enters collector tube, because the impact of collector tube and flat tube resistance, in the microchannel near the flat tube of the position of collector tube entrance point, can enter too much cold-producing medium, the cold-producing medium that more enters in the microchannel of the flat tube of distant positions from the collector tube entrance point is fewer, thereby causes cold-producing medium skewness in flat tube, thereby has affected the heat exchange efficiency of heat exchanger, it is low to cause air conditioning exhausting to have height to have, and has affected comfortableness.
At present, be suggested for improvement of the multiple design of refrigerant fluid by the distributing uniformity of micro-channel heat exchanger.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 plug-in mounting distributing pipe in the collector tube of refrigerant inlet end, is provided with a plurality of non-circular openings along its length direction on distributing pipe.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 larger applying working condition of refrigerant flow, but above-mentioned distributing pipe still can not be realized distributing uniformity and performance level for the rational faculty of micro-channel heat exchanger, and distributing uniformity remains further to be improved.
Summary of the invention
The utility model provides a kind of cold-producing medium distributed uniform to be used for efficiently distributing pipe and the micro-channel heat exchanger of micro-channel heat exchanger for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked 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 described body, described demarcation strip independently divides the space with the space segmentation in the body for several, each independently the corresponding tube wall in minute space be equipped with one group of through hole, the array through hole evenly distributes along the length direction of body.
Micro-channel heat exchanger, comprise the first collector tube, the second collector tube, be packed in and make the flat pipe group that two collector tubes are communicated with between two collector tubes and be located at fin between the flat pipe group, described the first collector tube and the 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 described the first collector tube, 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 a side of the first collector tube, and is connected with the cold-producing medium intake line in the heat exchanger outside.
The technical scheme that the utility model can also be taked is:
Described body is circular body, and described demarcation strip is along the radial even distribution of radially being of body.
Described through hole is circular hole or elliptical aperture.
Described body is the deltiod body, and described demarcation strip is along the parallel even distribution of the long side direction of deltiod body cross section.
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 independently the through hole gross area sum on minute space with the ratio of microchannel area sum of corresponding flat tube be 0.5-1.
Advantage and the good effect that the utlity model has are:
Distributing pipe adopts said structure, and the cold-producing medium that enters from the arrival end of distributing pipe is because the effect of demarcation strip, is divided to each independently in minute space, then flows out equably by the through hole on minute space corresponding tube wall.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 by 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 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.
Among the figure: 1, distributing pipe; 1-1, body; 1-2, fragmenting plate; 1-3, minute space; 1-4, through hole; 2, the first collector tube; 3, the second collector tube; 4, flat pipe group; 5, fin.
The specific embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail 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 described body, described demarcation strip independently divides space 1-3 with the space segmentation in the body for several, each independently the corresponding tube wall in minute space be equipped with one group of through hole 1-4, the array through hole evenly distributes along the length direction of body.
In the technique scheme: body can adopt the various shapes such as circle, direction, polygon, considers that from the angle of being convenient to make and install in the utility model, body preferably adopts following two kinds of technical schemes:
1) body is circular body, and described 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 fragmenting plate collects in the center of body.Body and demarcation strip can adopt the integrally casting molding mode, also can adopt the mode that is welded and fixed after minute body formed.
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 described demarcation strip is along the parallel even distribution of the long side direction of deltiod body cross section.Concrete, the two side ends of fragmenting plate is connected with the inwall on two parallel long limits of body respectively.Several fragmenting plates 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 long narrow pore structure.
Micro-channel heat exchanger, comprise the first collector tube 2, the 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 fin 5 between the flat tube that described the first collector tube and the second collector tube are respectively the 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 the first collector tube, an 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 a side of the 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 in the situation of satisfying the demand, can arrange flexibly.In the utility model, the quantity of the described through hole preferably quantity with flat tube is consistent, and through hole and flat tube align one by one in radial direction.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 by the shortest distance.
The area of the area of through hole and flat tube microchannel can rationally arrange according to the size of the charging quantity of cold-producing medium on the above-mentioned tube wall, in the utility model, described each independently the through hole gross area sum on minute space with the ratio of microchannel area sum of corresponding flat tube be preferably 0.5-1.The microchannel area refers to the transverse cutting area of microchannel.
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 described body, described demarcation strip independently divides the space with the space segmentation in the body for several, each independently the corresponding tube wall in minute space be equipped with one group of through hole, the array through hole evenly distributes along the length direction of body.
2. the distributing pipe for micro-channel heat exchanger according to claim 1, it is characterized in that: described body is circular body, described demarcation strip is along the radial even distribution of radially being of body.
3. the distributing pipe for micro-channel heat exchanger according to claim 2, it 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, it is characterized in that: described body is the deltiod body, described demarcation strip is along the parallel even distribution of the long side direction of deltiod body cross section.
5. the distributing pipe for micro-channel heat exchanger according to claim 4, it 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, the second collector tube, be packed in and make the flat pipe group that two collector tubes are communicated with between two collector tubes and be located at fin between the flat pipe group, described the first collector tube and the 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 described the 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 a side of the 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, it 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 independently the through hole gross area sum on minute 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 |
|---|---|---|---|
| CN 201220397086 CN202792701U (en) | 2012-08-10 | 2012-08-10 | Distribution pipe and microchannel heat exchanger used for microchannel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397086 CN202792701U (en) | 2012-08-10 | 2012-08-10 | Distribution pipe and microchannel heat exchanger used for microchannel heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202792701U true CN202792701U (en) | 2013-03-13 |
Family
ID=47819953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220397086 Withdrawn - After Issue CN202792701U (en) | 2012-08-10 | 2012-08-10 | Distribution pipe and microchannel heat exchanger used for microchannel heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202792701U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767922A (en) * | 2012-08-10 | 2012-11-07 | 天津三电汽车空调有限公司 | Distributing pipe for micro-channel heat exchanger and micro-channel heat exchanger |
| CN104121724A (en) * | 2013-04-27 | 2014-10-29 | 杭州三花研究院有限公司 | Air conditioning system and heat exchanger |
| CN104154801A (en) * | 2014-08-14 | 2014-11-19 | 丹佛斯微通道换热器（嘉兴）有限公司 | Collecting pipe and heat exchanger |
| WO2015027783A1 (en) * | 2013-08-30 | 2015-03-05 | 杭州三花研究院有限公司 | Micro-channel heat exchanger and method for manufacturing same |
| CN104422200A (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 and manufacturing method of micro-channel 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 |
| CN105423649A (en) * | 2015-10-23 | 2016-03-23 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger and air conditioner with same |
-
2012
- 2012-08-10 CN CN 201220397086 patent/CN202792701U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767922A (en) * | 2012-08-10 | 2012-11-07 | 天津三电汽车空调有限公司 | Distributing pipe for micro-channel heat exchanger and micro-channel heat exchanger |
| CN104121724A (en) * | 2013-04-27 | 2014-10-29 | 杭州三花研究院有限公司 | Air conditioning system and heat exchanger |
| US9751378B2 (en) | 2013-04-27 | 2017-09-05 | Hangzhou Sanhua Research Institute Co., Ltd. | Air conditioning system and heat exchanger |
| WO2015027783A1 (en) * | 2013-08-30 | 2015-03-05 | 杭州三花研究院有限公司 | Micro-channel heat exchanger and method for manufacturing same |
| CN104422200A (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 and manufacturing method of micro-channel 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 |
| CN104154801A (en) * | 2014-08-14 | 2014-11-19 | 丹佛斯微通道换热器（嘉兴）有限公司 | Collecting pipe and heat exchanger |
| CN104154801B (en) * | 2014-08-14 | 2016-05-04 | 丹佛斯微通道换热器（嘉兴）有限公司 | Header and heat exchanger |
| CN105423649A (en) * | 2015-10-23 | 2016-03-23 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger and air conditioner with same |
| CN105423649B (en) * | 2015-10-23 | 2017-11-21 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger and air conditioner with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |