CN201621986U - Micro-channel heat exchanger - Google Patents
Micro-channel heat exchanger Download PDFInfo
- Publication number
- CN201621986U CN201621986U CN2010201222054U CN201020122205U CN201621986U CN 201621986 U CN201621986 U CN 201621986U CN 2010201222054 U CN2010201222054 U CN 2010201222054U CN 201020122205 U CN201020122205 U CN 201020122205U CN 201621986 U CN201621986 U CN 201621986U
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- 230000008676 import Effects 0.000 claims description 33
- 230000011218 segmentation Effects 0.000 claims description 21
- 239000003507 refrigerant Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 13
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a micro-channel heat exchanger, which comprises a first collecting pipe, a second collecting pipe and a micro-channel flat pipe, wherein the micro-channel flat pipe is arranged between the first collecting pipe and the second collecting pipe, and the micro-channel flat pipe is respectively communicated with the first collecting pipe and the second collecting pipe; the second collecting pipe is provided with a flow dividing pipe, and a first cavity and a second cavity on the second collecting pipe are communicated through the flow dividing pipe. The reposition of redundant personnel of heat exchanger is more even, and heat transfer performance obtains improving, can regard as the evaporimeter to use, also can regard as the condenser to use.
Description
Technical field
The utility model belongs to field of air conditioning, is specifically related to a kind of micro-channel heat exchanger.
Background technology
When micro-channel heat exchanger uses as outdoor condenser, have higher heat exchange property, complete machine Energy Efficiency Ratio height, and the cost of material is low, and refrigerant perfused amount is few, meets very much current social enviroment protection requirements of saving energy.
Although it possesses above-mentioned numerous advantage and potentiality, it can only use as the condenser of single cooler at present, also can't popularize in an all-round way at air conditioner industry and use.Mainly be because it is when using as evaporimeter, tube refrigerant is generally based on gas-liquid two-phase, if header is a horizontal positioned, flat tube is vertically placed, and the gas-liquid two-phase cold-producing medium enters the flat tube that is positioned at upside from the bottom header, because gas-liquid two-phase cold-producing medium superficial velocity difference, and gaseous density is less than liquid density, in certain movement velocity scope, header inner refrigerant gas-liquid lamination is serious, so the gaseous refrigerant rate is introduced near flat tube; Because there is certain flow velocity in cold-producing medium, under action of inertia, cold-producing medium enter near the import flat tube flow divide more, then less apart from the flow that import is far away, the refrigeration flow that causes thus entering in each micro-channel flat is seriously uneven, and the mass dryness fraction difference is big; After cold-producing medium flow to the upper end header from the lower end header, flow to another bundle header along the upper end header, same because the influence of gas-liquid layering and inertial flow, it is many to make that liquid refrigerant enters the flow of anterior flat tube, enter under the flow of rear portion flat tube, it is overheated that the flat tube inner refrigerant that makes micro-channel heat exchanger have occurs, and the flat tube inner refrigerant that has evaporates again not exclusively.If header is vertically placed, the flat tube horizontal positioned, the gas-liquid two-phase cold-producing medium flows from bottom to top in header inside, is subjected to gravity effect, and liquid refrigerant flows downward, and gaseous refrigerant flows downward; Be subjected to the reason that on-way resistance influences and gas-liquid two-phase cold-producing medium superficial velocity is different simultaneously, so it is more that liquid refrigerant enters the micro-channel flat of and import below near apart from import, and that gaseous refrigerant enters the micro-channel flat of and import top near apart from import is more, it is serious uneven to cause each flat tube passage inner refrigerant to distribute equally, make that the whole heat exchange property performance of heat exchanger is insufficient, heat exchange efficiency is low.
Therefore, when micro-channel heat exchanger used as indoor machine evaporation, the refrigerating capacity of air-conditioning and Energy Efficiency Ratio were all lower; When being applied on the heat pump outdoor unit, be converted to heating operation by refrigeration, the off-premises station heat exchanger uses as evaporimeter, has the serious uneven difficult problem of cold-producing medium shunting equally, and heating performance is relatively poor, and frosting is serious.Therefore, except the problem of the draining of fin and frosting, the branch flow problem of micro-channel evaporator also is badly in need of solving.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, and a kind of micro-channel heat exchanger is provided.The shunting of heat exchanger described in the utility model is more even, and heat exchange property is improved, and can be used as evaporimeter and uses, and also can be used as condenser and uses.
Its technical scheme is as follows:
A kind of micro-channel heat exchanger, comprise first header, second header and micro-channel flat, micro-channel flat is located between first header and second header, and micro-channel flat communicates with first header, second header respectively, in first header and second header, be equipped with block piece, it is first chamber, second chamber that this block piece separates the space in first header and second header respectively, is provided with import and outlet on first header or second header; Be provided with isocon on second header, first chamber, second chamber on second header communicate by this isocon.
Because first chamber, second chamber in second header communicate by isocon, after cold-producing medium enters first chamber, enter second chamber by isocon again, because the effect of isocon, cold-producing medium has weakened the influence of inertia in gas-liquid layering and the flow of refrigerant when entering second chamber, make heat exchanger described in the utility model not only be applicable to condenser, also be applicable to evaporimeter.Particularly, when this heat exchanger used as evaporimeter, shunting was evenly avoided the incomplete phenomenon of heat exchanger hot-spot and local evaporation in each micro-channel flat, improves the heat exchange property of heat exchanger; When heat exchanger used as condenser, import helped branch gas, and isocon helps distributing the gas-liquid two-phase cold-producing medium, improved heat exchange property.In brief, micro-channel heat exchanger described in the utility model both can be used as condenser and had used, and also can be used as evaporimeter and use, and heat exchange property is good.
The technical scheme of the further refinement of aforementioned techniques scheme can be:
Described import and outlet are at least two, and import and outlet lay respectively at the both sides of described block piece.
Described isocon is at least two, promptly comprises first isocon and second isocon at least.Further, the port position of two isocons is followed successively by: first isocon, first end, second isocon, first end, first isocon, second end, second isocon, second end.
The described block piece of being located on described first header also is three, and it is the 3rd chamber, the 4th chamber that the space in described first header is also separated by described block piece; Described import, outlet communicate with first chamber, the 4th chamber of first header respectively, also are provided with isocon on described first header, and this isocon communicates second chamber, the 3rd chamber of first header.
One of them end of described isocon includes at least two shunt pipes.Particularly, can adopt following two kinds of structures: first end and second end of described isocon have included at least two shunt pipes.Perhaps, first end of described isocon is the shunting house steward, and second end is at least two shunt pipes, is provided with current divider between shunting house steward and shunt pipe.
Described import and outlet are at least two, and each import is communicated with intake header by entrance branch, and each outlet is communicated with the outlet header by outlet stool.
Described first header, second header and micro-channel flat include first segmentation and second segmentation, first split is formed in first segmentation of first header, second header and micro-channel flat, and second split is formed in second segmentation of first header, second header and micro-channel flat; Described block piece is the obstruction of being located between first header and two segmentations of second header, communicates by described isocon between first segmentation on described second header, second segmentation.Promptly this heat exchanger can comprise two or more traditional micro-channel heat exchangers (each traditional micro-channel heat exchanger becomes a split), communicates by isocon between each split.
Described import is at least two, is located in described first split, and described outlet also is at least two, is located in described second split.Also include entrance branch, intake header, outlet stool and outlet header, each described import is communicated with intake header by entrance branch, and each described outlet is communicated with the outlet header by outlet stool.
Need to prove that heat exchanger described in the utility model can be used as evaporimeter and uses, also can be used as condenser and use, that is to say that described import, outlet are relative, when the flow direction of cold-producing medium changes, former outlet is used as import, and former import is used as outlet.
In sum, the utility model has the advantages that: owing to adopt isocon to shunt, when cold-producing medium enters micro-channel flat from header, effectively overcome the influence of gravity and the influence of refrigerant condition, make that cold-producing medium is more uniform to be entered in the micro-channel flat, the heat exchange property of heat exchanger is improved, and makes this micro-channel heat exchanger both can make condenser and uses, and also can make evaporimeter and use.
Description of drawings
Fig. 1 is the structure chart of the utility model embodiment one;
Fig. 2 is the structure chart of the utility model embodiment two;
Fig. 3 is the structure chart of the utility model embodiment three;
Fig. 4 is the structure chart of the utility model embodiment four;
Fig. 5 is the structure chart of the utility model embodiment five;
Fig. 6 is the structure chart of the utility model embodiment six;
Fig. 7 is the structure chart of the utility model embodiment seven;
Fig. 8 is the structure chart of the utility model embodiment eight;
Description of reference numerals:
1, first header, 2, second header, 3, micro-channel flat, 4, block piece, 5, first chamber, 6, second chamber, the 7, the 3rd chamber, the 8, the 4th chamber, 9, import, 10, outlet, 11, isocon, 12, shunt pipe, 13, the shunting house steward, 14, current divider, 15, entrance branch, 16, intake header, 17, outlet stool, 18, outlet header, 19, first split, 20, second split.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
A kind of micro-channel heat exchanger, comprise first header 1, second header 2 and micro-channel flat 3, micro-channel flat 3 is located between first header 1 and second header 2, and micro-channel flat 3 communicates with first header 1, second header 2 respectively, in first header 1 and second header 2, be equipped with block piece, it is first chamber 5, second chamber 6 that this block piece separates the space in first header 1 and second header 2 respectively, is provided with import 9 and exports 10 on first header 1 or second header 2; Communicate by this isocon 11 in first chamber 5, second chamber 6 that are provided with on second header 2 on isocon 11, the second headers 2.
Specific embodiment is as follows:
Embodiment one
As shown in Figure 1, in the present embodiment, first header 1, second header, 2 horizontal positioned, micro-channel flat 3 is erect and is placed.Described import 9 and export 10 and be two, import 9 and export 10 both sides that lay respectively at block piece 4; Described isocon 11 also is two, promptly comprises first isocon and second isocon, and the port position of two isocons 11 is followed successively by: first isocon, first end, second isocon, first end, first isocon, second end, second isocon, second end.
Embodiment two
As shown in Figure 2, in the present embodiment, first header 1, second header, 2 horizontal positioned, micro-channel flat 3 is erect and is placed.The block piece of being located on second header 24 is three, and it is the 3rd chamber 7, the 4th chamber 8 that the space in second header 2 is also separated by block piece 4; The block piece of being located on first header 14 also is three, and it is the 3rd chamber 7, the 4th chamber 8 that the space in first header 1 is also separated by block piece 4; Described import 9, outlet 10 communicate with first chamber 5, the 4th chamber 8 of first header 1 respectively, between second chamber 6 that also is provided with two isocons, 11, the first headers 1 on first header 1 and the 3rd chamber 7, between first chamber 5 of second header 2 and second chamber 6, between the 3rd chamber 7 of second header 2 and the 4th chamber 8, all communicate by two isocons 11.
Embodiment three
As shown in Figure 3, in the present embodiment, first header 1, second header, 2 horizontal positioned, micro-channel flat 3 is erect and is placed.Shunting house steward's 13 first end and second end have included two shunt pipes 12.
Embodiment four
As shown in Figure 4, in the present embodiment, first header 1, second header, 2 horizontal positioned, micro-channel flat 3 is erect and is placed.First end of isocon 11 is provided with current divider for shunting house steward 13, the second ends are three shunt pipes 12 between shunting house steward 13 and shunt pipe 12.
Embodiment five
As shown in Figure 5, in the present embodiment, first header 1, second header, 2 horizontal positioned, micro-channel flat 3 is erect and is placed.Be located at import 9 and export the tube connector on 10, the side that isocon 11 all is positioned at micro-channel flat 3.
Embodiment six
As shown in Figure 6, in the present embodiment, first header 1, second header 2 are erect and are placed micro-channel flat 3 horizontal positioned.Described isocon 11 is two, promptly comprises first isocon and second isocon, and the port position of two isocons 11 is followed successively by: first isocon, first end, second isocon, first end, first isocon, second end, second isocon, second end.
Embodiment seven
As shown in Figure 7, in the present embodiment, first header 1, second header, 2 horizontal positioned, micro-channel flat 3 is erect and is placed.First header 1, second header 2 and micro-channel flat 3 include first segmentation and second segmentation, first segmentation of first header 1, second header 2 and micro-channel flat 3 is formed second segmentation of first split, 19, the first headers 1, second header 2 and micro-channel flat 3 and is formed second split 20; Described block piece 4 communicates by isocon 11 between first segmentation on second header 2, second segmentation for being located at the blocking cap between first header 1 and 2 two segmentations of second header.Promptly this heat exchanger can comprise two or more traditional micro-channel heat exchangers (each traditional micro-channel heat exchanger becomes a split), communicates by isocon 11 between each split.Described import 9 is two, is located in first split 19, and described outlet 10 is two also, is located in second split 20.Also include entrance branch 15, intake header 16, outlet stool 17 and outlet header 18, each import 9 is communicated with intake header 16 by entrance branch 15, and each exports 10 and passes through outlet stool 17 and be communicated with outlet header 18.
Embodiment eight
As shown in Figure 8, in the present embodiment, first header 1, second header, 2 horizontal positioned, micro-channel flat 3 is erect and is placed.Be equipped with three block pieces 4 in first header 1 and second header 2, and respectively the space in first header 1, second header 2 be divided into first chamber 5, second chamber 6, the 3rd chamber 7, the 4th chamber 8; Import 9 and export 10 and be two, communicate with four chambeies of first header 1 respectively, communicate by an isocon 11 between first chamber 5 of second header 2, the 3rd chamber 7, communicate by another isocon 11 between second chamber 6 of second header 2, the 4th chamber 8.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (12)
1. micro-channel heat exchanger, comprise first header, second header and micro-channel flat, micro-channel flat is located between first header and second header, and micro-channel flat communicates with first header, second header respectively, in first header and second header, be equipped with block piece, it is first chamber, second chamber that this block piece separates the space in first header and second header respectively, is provided with import and outlet on first header or second header; It is characterized in that, be provided with isocon on second header, first chamber, second chamber on second header communicate by this isocon.
2. micro-channel heat exchanger according to claim 1 is characterized in that described import and outlet are at least two, and import and outlet lay respectively at the both sides of described block piece.
3. micro-channel heat exchanger according to claim 1 is characterized in that described isocon is at least two, promptly comprises first isocon and second isocon at least.
4. as micro-channel heat exchanger as described in the claim 3, it is characterized in that the port position of two isocons is followed successively by: first isocon, first end, second isocon, first end, first isocon, second end, second isocon, second end.
5. micro-channel heat exchanger according to claim 1 is characterized in that the described block piece of being located on described second header is three, and it is the 3rd chamber, the 4th chamber that the space in described second header is also separated by described block piece; The 3rd chamber, the 4th chamber communicate by another described isocon.
6. as micro-channel heat exchanger as described in the claim 5, it is characterized in that the described block piece of being located on described first header also is three, it is the 3rd chamber, the 4th chamber that the space in described first header is also separated by described block piece; Described import, outlet communicate with first chamber, the 4th chamber of first header respectively, also are provided with isocon on described first header, and this isocon communicates second chamber, the 3rd chamber of first header.
7. micro-channel heat exchanger according to claim 1 is characterized in that one of them end of described isocon includes at least two shunt pipes.
8. as micro-channel heat exchanger as described in the claim 7, it is characterized in that first end and second end of described isocon have included at least two shunt pipes.
9. as micro-channel heat exchanger as described in the claim 7, it is characterized in that first end of described isocon is house steward, second end is at least two shunt pipes, is provided with current divider between shunting house steward and shunt pipe.
10. micro-channel heat exchanger according to claim 1, it is characterized in that, described first header, second header and micro-channel flat include first segmentation and second segmentation, first split is formed in first segmentation of first header, second header and micro-channel flat, and second split is formed in second segmentation of first header, second header and micro-channel flat; Described block piece is the obstruction of being located between first header and two segmentations of second header, communicates by described isocon between first segmentation on described second header, second segmentation.
11., it is characterized in that described import is at least two as micro-channel heat exchanger as described in the claim 10, to be located in described first split, described outlet also is at least two, is located in described second split.
12. as micro-channel heat exchanger as described in the claim 11, it is characterized in that, also include entrance branch, intake header, outlet stool and outlet header, each described import is communicated with intake header by entrance branch, and each described outlet is communicated with the outlet header by outlet stool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201222054U CN201621986U (en) | 2010-02-23 | 2010-02-23 | Micro-channel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201222054U CN201621986U (en) | 2010-02-23 | 2010-02-23 | Micro-channel heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621986U true CN201621986U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201222054U Expired - Lifetime CN201621986U (en) | 2010-02-23 | 2010-02-23 | Micro-channel heat exchanger |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267390A (en) * | 2013-05-06 | 2013-08-28 | 广东美的制冷设备有限公司 | Concurrent flow heat exchanger and air conditioner |
| CN103807936A (en) * | 2012-11-08 | 2014-05-21 | 杭州三花研究院有限公司 | Heat pump air-conditioner system |
| CN104006576A (en) * | 2013-02-25 | 2014-08-27 | 浙江盾安热工科技有限公司 | Heat exchanger |
| CN106196735A (en) * | 2015-05-07 | 2016-12-07 | 杭州三花家电热管理系统有限公司 | A kind of heat exchanger and application in systems thereof |
| CN107328144A (en) * | 2017-08-21 | 2017-11-07 | 广东工业大学 | Mass dryness fraction control method and evaporator in a kind of pipe of evaporator |
| US10767937B2 (en) | 2011-10-19 | 2020-09-08 | Carrier Corporation | Flattened tube finned heat exchanger and fabrication method |
| CN112484555A (en) * | 2020-11-30 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Warm air core body, automobile air conditioning system and control method thereof |
-
2010
- 2010-02-23 CN CN2010201222054U patent/CN201621986U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10767937B2 (en) | 2011-10-19 | 2020-09-08 | Carrier Corporation | Flattened tube finned heat exchanger and fabrication method |
| US11815318B2 (en) | 2011-10-19 | 2023-11-14 | Carrier Corporation | Flattened tube finned heat exchanger and fabrication method |
| CN103807936A (en) * | 2012-11-08 | 2014-05-21 | 杭州三花研究院有限公司 | Heat pump air-conditioner system |
| CN103807936B (en) * | 2012-11-08 | 2018-06-26 | 杭州三花研究院有限公司 | A kind of heat pump air conditioning system |
| CN104006576A (en) * | 2013-02-25 | 2014-08-27 | 浙江盾安热工科技有限公司 | Heat exchanger |
| CN103267390A (en) * | 2013-05-06 | 2013-08-28 | 广东美的制冷设备有限公司 | Concurrent flow heat exchanger and air conditioner |
| CN103267390B (en) * | 2013-05-06 | 2016-03-02 | 广东美的制冷设备有限公司 | Parallel-flow heat exchanger and air-conditioner |
| CN106196735A (en) * | 2015-05-07 | 2016-12-07 | 杭州三花家电热管理系统有限公司 | A kind of heat exchanger and application in systems thereof |
| CN107328144A (en) * | 2017-08-21 | 2017-11-07 | 广东工业大学 | Mass dryness fraction control method and evaporator in a kind of pipe of evaporator |
| CN107328144B (en) * | 2017-08-21 | 2023-01-10 | 广东工业大学 | Evaporator and method for controlling dryness in pipe thereof |
| CN112484555A (en) * | 2020-11-30 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Warm air core body, automobile air conditioning system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |