CN107202504B - Cross current conversion device and micro-channel heat exchanger - Google Patents
Cross current conversion device and micro-channel heat exchanger Download PDFInfo
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- CN107202504B CN107202504B CN201610152299.1A CN201610152299A CN107202504B CN 107202504 B CN107202504 B CN 107202504B CN 201610152299 A CN201610152299 A CN 201610152299A CN 107202504 B CN107202504 B CN 107202504B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a cross current conversion device and a micro-channel heat exchanger, wherein the cross current conversion device comprises a plurality of cavities, the cavities are provided with a front row and a rear row, the cavities in the front row and the rear row are distributed in a multilayer manner, each layer is correspondingly arranged in the front and the rear, and the front row cavities and the rear row cavities which correspond to each other in the front and the rear in the adjacent upper layer and lower layer cavities are communicated in a cross manner. The heat exchangers are divided into an upper row and a lower row, and then are connected through the cross current conversion device, so that the upper row and the lower row of the heat exchangers realize front-back cross current conversion through the cross current conversion device, the problems of air outlet uniformity and pressure drop can be well guaranteed, and the balance of the heat exchange quantity of the two system heat exchangers is realized.
Description
Technical Field
The invention relates to the air conditioning technology, in particular to a micro-channel heat exchanger.
Background
The microchannel heat exchanger is arranged side by side from front to back when a side-by-side structure is manufactured, and the problems of uneven parallel air outlet temperature and too large series pressure drop exist.
In addition, when the microchannel heat exchanger is applied to a compressor dual system, the heat exchangers of the two systems often share one air duct due to the limitation of the structural size, the wind field in the air duct is often not uniformly distributed, and the air temperature is greatly changed when the air passes through the heat exchanger on the windward side and then passes through the heat exchanger on the leeward side, so that the balance of the heat exchange quantity of the heat exchangers of the two systems is difficult to realize.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cross current conversion device and a micro-channel heat exchanger to realize the balance of the heat exchange quantity of the two system heat exchangers.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a cross current conversion device, includes a plurality of cavity, two rows around a plurality of cavity is equipped with, two rows of cavities are multilayer distribution and every layer corresponds the setting around all around, and the front row cavity that corresponds around in the adjacent upper and lower two-layer cavity is with back row cavity cross intercommunication.
Preferably, the plurality of cavities are distributed in even number layers.
Preferably, the plurality of cavities comprise a first cavity and a second cavity which are arranged in an upper layer and a lower layer in a front row, and a fourth cavity and a third cavity which are arranged in an upper layer and a lower layer in a rear row, wherein the first cavity is communicated with the third cavity, and the fourth cavity is communicated with the second cavity.
Preferably, the cavity is of a cuboid or cube structure.
Preferably, the cross current converting device includes an upper cover, a lower cover and an intermediate baffle, a first cavity and a fourth cavity are formed between the upper cover and the intermediate baffle, a second cavity and a third cavity are formed between the lower cover and the intermediate baffle, a first distribution hole and a second distribution hole are formed in the intermediate baffle, the first distribution hole enables the first cavity to be communicated with the third cavity, and the second distribution hole enables the fourth cavity to be communicated with the second cavity.
Preferably, the upper surface and the lower surface of the middle baffle are provided with two rows of separation plates in the front-back direction, a positioning gap is formed between the two rows of separation plates, and the middle baffle is provided with separation strips which are fixed in the positioning gap.
Preferably, the separating strips are provided with a concave-convex structure which is continuously concave-convex from front to back along the length direction, and the concave-convex directions of the separating strips arranged on the upper surface and the lower surface of the middle baffle are opposite from front to back.
Preferably, the cross current conversion device comprises an upper layer structure and a lower layer structure which are separated from each other from top to bottom, the upper layer structure is provided with a first cavity and a fourth cavity, the lower layer structure is provided with a second cavity and a third cavity, the first cavity and the third cavity are communicated through a first adapter tube, and the fourth cavity and the second cavity are communicated through a second adapter tube.
Preferably, the upper layer structure and the lower layer structure respectively comprise a cover plate and two sealing plates arranged side by side in the front and back direction, the cover plate is of a flat plate-shaped structure, the front and back sections of the sealing plates are U-shaped, the cover plate is covered on the opening side of the sealing plates, a concave-convex plate is arranged in the sealing plates, and the concave-convex plate is provided with a concave part and a convex part which are continuously concave and convex up and down.
The invention also provides a micro-channel heat exchanger which comprises a first row of heat exchangers, a second row of heat exchangers, a third row of heat exchangers, a fourth row of heat exchangers and the cross current conversion device, wherein the first row of heat exchangers and the second row of heat exchangers are arranged above the cross current conversion device in a front-back side-by-side mode, the third row of heat exchangers and the fourth row of heat exchangers are arranged below the cross current conversion device in a front-back side-by-side mode, the first row of heat exchangers and the second row of heat exchangers are respectively connected with front-row cavities and rear-row cavities at the topmost layer of the cross current conversion device, and the third row of heat exchangers and the fourth row of heat exchangers are respectively connected with front-row cavities and rear-row.
According to the technical scheme adopted by the invention, the heat exchangers are divided into an upper row and a lower row, and then are connected through the cross current conversion device, and front row cavities and rear row cavities which correspond to each other in the front and rear of the upper layer cavity and the lower layer cavity which are adjacent in the cross current conversion device are communicated in a cross mode, so that the front row and rear row of heat exchangers in the upper row and the lower row are crossed and converted through the cross current conversion device, the problems of air outlet uniformity and pressure drop can be well guaranteed, and the balance of the heat exchange quantity of.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the external shape of the cross current converting apparatus in embodiment 1;
fig. 3 is a schematic side view of the cross current converting apparatus according to embodiment 1;
FIG. 4 is a schematic diagram showing a forward structure of the cross current converting apparatus in embodiment 1;
FIG. 5 is a schematic view showing the structure of an intermediate baffle plate in example 1;
fig. 6 is a schematic top view of the cross current converting apparatus according to embodiment 1;
FIG. 7 is a schematic view showing the structure of a separator in example 1;
FIG. 8 is a schematic structural view of a cover plate in embodiment 1;
fig. 9 is a schematic structural view of a cross current converting apparatus in embodiment 2;
fig. 10 is a schematic top view showing the structure of the cross current converting apparatus according to embodiment 2;
fig. 11 is a partially exploded view schematically showing the cross current converting apparatus according to embodiment 2.
Detailed Description
The cross current conversion device 1 comprises a plurality of cavities, the plurality of cavities are distributed in a multilayer manner, the plurality of cavities are provided with a front row and a rear row, the front row and the rear row of cavities on each layer are correspondingly arranged front and rear, namely, the number of layers of the front row of cavities is equal to that of the rear row of cavities, the number of cavities on each row is also equal to that of the cavities, the first cavity of the front row corresponds to the first cavity of the rear row at the same time, and the like, and in consideration of an optimal angle, the first cavity of the front row and the first cavity of the rear row are arranged in parallel and level, the same way is carried out, the optimal arrangement can effectively save space, the structure is more compact, and certain deviation is allowed in position.
In addition, the front row cavity and the rear row cavity which correspond to each other in the front and the rear of the adjacent upper and lower layers of cavities are communicated with each other in a cross way. In the microchannel heat exchanger, the bottoms of the first row of heat exchangers 21 and the second row of heat exchangers 22 are respectively connected with the front row and the rear row of cavities at the topmost layer of the cross converter device 1, and the tops of the third row of heat exchangers 23 and the fourth row of heat exchangers 24 are respectively connected with the front row and the rear row of cavities at the bottommost layer of the cross converter device. Finally, the first row of heat exchangers 21 is communicated with the fourth row of heat exchangers 24, and the second row of heat exchangers 22 is communicated with the third row of heat exchangers 23, so that front-back cross flow conversion of the upper and lower rows of heat exchangers is realized through a cross flow conversion device, the problems of air outlet uniformity and pressure drop can be well guaranteed, and the balance of heat exchange quantity of the two system heat exchangers is realized.
The plurality of cavities are preferably distributed in even number layers, so that the front row cavity at the topmost layer of the cross current conversion device is communicated with the rear row cavity at the bottommost layer, the rear row cavity at the topmost layer of the cross current conversion device is communicated with the front row cavity at the bottommost layer, and finally, the heat exchangers on the upper side and the lower side of the cross current conversion device realize front-back cross current conversion.
In order to ensure that the cross flow effect can be achieved and the structure is compact, the cross flow conversion device 1 may have fewer cavities, and thus, as shown in fig. 3, specifically, in this embodiment, the cross flow conversion device 1 includes a first cavity 101 and a second cavity 102 that are disposed in an upper layer and a lower layer in a front row, and a fourth cavity 104 and a third cavity 103 that are disposed in an upper layer and a lower layer in a rear row, where the first cavity 101 is communicated with the third cavity 103, and the fourth cavity 104 is communicated with the second cavity 102. And the cavity is a cuboid or cube structure, so that the volume of the cross current conversion device 1 can be reduced, and the effect of cross current is achieved through a compact structure.
As one of the structures of the cross flow conversion apparatus, in the present embodiment, as shown in fig. 2 to 8, the cross flow conversion apparatus 1 includes two cover plates 11, that is, an upper cover and a lower cover, and an intermediate baffle 12, the upper cover and the intermediate baffle 12 form a first cavity 101 and a fourth cavity 104 therebetween, the lower cover and the intermediate baffle 12 form a second cavity 102 and a third cavity 103 therebetween, the intermediate baffle 12 includes a flat plate 121, a first distribution hole 124 and a second distribution hole 125 are provided on the flat plate 121, the first distribution hole 124 communicates the first cavity 101 with the third cavity 103, and the second distribution hole 125 communicates the fourth cavity 104 with the second cavity 102. Two rows of partition plates 122 are arranged on the upper surface and the lower surface of the flat plate 121 in the front-back direction, a positioning gap 123 is arranged between the two rows of partition plates 122, partition strips 13 are arranged on the middle baffle plate 12, the partition strips 13 are fixed in the positioning gap 123, partition strips 13 and the partition plates 122 form a lattice groove, and then the lattice groove is matched with the two cover plates 11 to form each chamber. The cover plate 11 is provided with a row of strip-shaped grooves 111 along the length direction, and the strip-shaped grooves 111 are connected with the heat exchanger and communicated with the heat exchanger and the cavity of the cross converter device 1.
As shown in fig. 7, the dividing strip 13 has a concave-convex structure with continuous concave-convex in the front-back direction along the length direction, and is formed by continuously forming a plurality of sections of the groove portion 131 and the connecting portion 132, and has a substantially square wave curve structure as a whole. The concave-convex directions of the separating strips arranged on the upper surface and the lower surface of the middle baffle are opposite. As shown in fig. 6, a set of concave-convex structures, specifically two groove portions 131, are disposed between two adjacent partition plates 122, a first groove portion is disposed corresponding to the first distribution hole 124, and a second groove portion is disposed corresponding to the second distribution hole 125. The arrangement can lead the front row cavity and the rear row cavity which correspond to each other in the front and the rear of the adjacent upper and lower layers of cavities to be communicated in a crossing way through respective distribution holes, and the connecting part 132 of the concave-convex structure is positioned and fixed in the positioning gap,
the cross current conversion device in the embodiment has the characteristics of fewer components and compact structure, forms each chamber through the compact structure, and realizes the cross current effect.
In this embodiment, the fluid flowing manner in the cross current conversion device is as follows: the fluid entering the first chamber 101 flows into the third chamber 103 via the first distribution port and the fluid entering the fourth chamber 104 flows into the third chamber 103 via the second distribution port, thereby forming a compact cross-flow intermediate adapter.
Embodiment 2, as shown in fig. 9 to 11, is different from embodiment 1 in that the cross current converting apparatus includes two separate structures 14, that is, an upper structure and a lower structure, the upper structure is provided with a first cavity 101 and a fourth cavity 104, the lower structure is provided with a second cavity 102 and a third cavity 103, the first cavity 101 and the third cavity 103 are communicated with each other through a first adapter tube 15, and the fourth cavity 104 and the second cavity 102 are communicated with each other through a second adapter tube 16.
The upper-layer structure and the lower-layer structure have the same structure and respectively comprise a cover plate 143 and two sealing plates 142 arranged in parallel front and back, the cover plate 143 is of a flat plate-shaped structure, the front and back sections of the sealing plates 142 are U-shaped, the cover plate 143 covers the opening side of the sealing plates 142, a concave-convex plate 141 is arranged in the sealing plates 142, and the concave-convex plate 141 is provided with a concave part 1411 and a convex part 1412 which are continuously concave and convex up and down.
In the upper layer structure, a row of first cavities are formed by enclosing the front row of concave-convex plates, the sealing plates and the cover plate, and a row of fourth cavities are formed by enclosing the rear row of concave-convex plates, the sealing plates and the cover plate; in the lower layer structure, enclose between the buckle slab and the shrouding of front row and the apron and form one row of second cavity, enclose between the buckle slab and the shrouding of back row and the apron and form one row of third cavity, in addition, the concave part 1411 bottom of buckle slab is equipped with connecting hole 1413 and is connected with first switching pipe or second switching pipe.
The cross converter device in the embodiment has the advantages that the cross converter device is convenient to assemble through more components, and the processing difficulty is reduced.
In this embodiment, the fluid flowing manner in the cross current conversion device is as follows: fluid entering the first chamber 101 flows into the third chamber 103 via the first transition pipe 15 and fluid entering the fourth chamber 104 flows into the third chamber 103 via the second transition pipe 16, thereby forming an intermediate transition body in a cross-flow configuration.
Claims (8)
1. A cross-current converting apparatus, characterized in that: the cavity comprises a plurality of cavities, wherein the cavities are provided with a front row and a rear row, the front row and the rear row of cavities are distributed in a multilayer manner, each layer of cavities is correspondingly arranged in the front and the rear, and front-row cavities and rear-row cavities which correspond to each other in the front and the rear in the adjacent upper and lower layers of cavities are communicated in a crossed manner; the plurality of cavities are distributed in an even number of layers, the plurality of cavities comprise a plurality of first cavities and a plurality of second cavities which are arranged on the upper layer and the lower layer of the front row, a plurality of fourth cavities and a plurality of third cavities which are arranged on the upper layer and the lower layer of the rear row, each first cavity is communicated with each third cavity through a corresponding first distribution hole, and each fourth cavity is communicated with each second cavity through a corresponding second distribution hole.
2. A cross-current converting apparatus according to claim 1, wherein: the cavity is of a cuboid or cube structure.
3. A cross-current converting apparatus according to claim 1 or 2, wherein: the cross current conversion device comprises an upper cover, a lower cover and a middle baffle, a first cavity and a fourth cavity are formed between the upper cover and the middle baffle, a second cavity and a third cavity are formed between the lower cover and the middle baffle, and the first distribution holes and the second distribution holes are formed in the middle baffle.
4. A cross-current converting apparatus according to claim 3, wherein: the upper surface and the lower surface of the middle baffle are provided with two rows of separation plates in the front-back direction, a positioning gap is arranged between the two rows of separation plates, and the middle baffle is provided with separation strips which are fixed in the positioning gap.
5. A cross-current converting apparatus according to claim 4, wherein: the separating strips are provided with a concave-convex structure which is continuous and concave-convex from front to back along the length direction, and the concave-convex directions of the separating strips arranged on the upper surface and the lower surface of the middle baffle are opposite from front to back.
6. A cross-current converting apparatus, characterized in that: the novel solar cell module comprises a plurality of cavities, the plurality of cavities are provided with a front row and a rear row, the front row and the rear row of cavities comprise an upper layer structure and a lower layer structure which are separated from each other from top to bottom, the upper layer structure is provided with a plurality of first cavities and a plurality of fourth cavities, the lower layer structure is provided with a plurality of second cavities and a plurality of third cavities, and each first cavity is communicated with each third cavity through a corresponding first adapter pipe, and each second cavity is communicated with each second cavity through a corresponding second adapter pipe.
7. A cross-current converting apparatus according to claim 6, wherein: the upper layer structure and the lower layer structure respectively comprise a cover plate and two sealing plates arranged side by side in the front and at the back, the cover plate is of a flat plate-shaped structure, the front and back sections of the sealing plates are U-shaped, the cover plate is covered on the opening side of the sealing plates, concave-convex plates are arranged in the sealing plates, the concave-convex plates are provided with upper concave portions and lower concave portions which are continuous and concave, and connecting holes are formed in the concave portions.
8. The utility model provides a microchannel heat exchanger, includes first row of heat exchanger, second row heat exchanger, third row heat exchanger, fourth row heat exchanger, its characterized in that: the cross current conversion device according to any one of claims 1 to 7 is further provided, the first row of heat exchangers and the second row of heat exchangers are arranged above the cross current conversion device in a front-back side-by-side manner, the third row of heat exchangers and the fourth row of heat exchangers are arranged below the cross current conversion device in a front-back side-by-side manner, the first row of heat exchangers and the second row of heat exchangers are respectively connected with the front row cavity and the rear row cavity of the topmost layer of the cross current conversion device, and the third row of heat exchangers and the fourth row of heat exchangers are respectively connected with the front row cavity and the rear row cavity of the bottommost layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152299.1A CN107202504B (en) | 2016-03-17 | 2016-03-17 | Cross current conversion device and micro-channel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152299.1A CN107202504B (en) | 2016-03-17 | 2016-03-17 | Cross current conversion device and micro-channel heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107202504A CN107202504A (en) | 2017-09-26 |
| CN107202504B true CN107202504B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610152299.1A Active CN107202504B (en) | 2016-03-17 | 2016-03-17 | Cross current conversion device and micro-channel heat exchanger |
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| CN (1) | CN107202504B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780756B (en) * | 2017-11-13 | 2021-08-17 | 杭州三花微通道换热器有限公司 | Heat exchanger, refrigerating system and refrigerating equipment |
| CN111366029A (en) * | 2018-12-26 | 2020-07-03 | 浙江盾安热工科技有限公司 | Heat exchanger connecting device and heat exchanger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285630B (en) * | 2003-10-29 | 2010-06-16 | 昭和电工株式会社 | Heat exchanger |
| US7228885B2 (en) * | 2003-11-26 | 2007-06-12 | Proliance International, Inc. | Heat exchanger package with split radiator and split charge air cooler |
| WO2008085314A2 (en) * | 2006-12-19 | 2008-07-17 | E. I. Du Pont De Nemours And Company | Dual row heat exchanger and automobile bumper incorporating the same |
| US20100031505A1 (en) * | 2008-08-06 | 2010-02-11 | Oddi Frederick V | Cross-counterflow heat exchanger assembly |
| DE202011003054U1 (en) * | 2011-02-22 | 2011-05-12 | Behr Gmbh & Co. Kg | heat exchangers |
| CN105190202B (en) * | 2013-05-08 | 2017-11-17 | 三菱电机株式会社 | Heat exchanger and refrigerating circulatory device |
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2016
- 2016-03-17 CN CN201610152299.1A patent/CN107202504B/en active Active
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| CN107202504A (en) | 2017-09-26 |
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