CN114001569A - Plate sheet group of block staggered micro-channel plate heat exchanger - Google Patents
Plate sheet group of block staggered micro-channel plate heat exchanger Download PDFInfo
- Publication number
- CN114001569A CN114001569A CN202111372582.2A CN202111372582A CN114001569A CN 114001569 A CN114001569 A CN 114001569A CN 202111372582 A CN202111372582 A CN 202111372582A CN 114001569 A CN114001569 A CN 114001569A
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- China
- Prior art keywords
- plate
- side plate
- block
- hot side
- heat exchanger
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Classifications
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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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
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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
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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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
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/268—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by permanent joints, e.g. by welding
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a plate set of a block staggered micro-channel plate heat exchanger, wherein a hot side plate and a cold side plate of the plate set are vertically overlapped, a plurality of flow channels are arranged on the hot side plate and the cold side plate, the flow channels on the hot side plate and the cold side plate are correspondingly overlapped, a plurality of hot side plate blocks are arranged in the flow channel of the hot side plate, a plurality of cold side plate blocks are arranged in the flow channel of the cold side plate, and the hot side plate blocks and the cold side plate blocks are diamond blocks and are mutually staggered. The invention solves the technical problem that the heat exchange efficiency of the high-efficiency microchannel heat exchanger in the prior art is not high, and the invention provides an improvement on the arrangement form of the plates of the microchannel plate heat exchanger.
Description
Technical Field
The invention relates to a plate set of a block staggered micro-channel plate heat exchanger, belonging to the technical field of micro-channel heat exchange.
Background
In recent years, the demand of the fields of aerospace, nuclear power, hydrogen energy automobiles, ships, energy industries, offshore oil and gas development and the like for the high-efficiency micro-channel heat exchanger is increasing day by day, and the high-efficiency micro-channel heat exchanger is widely popularized and applied as a novel heat exchanger due to the advantages of small volume, light weight, strong heat exchange capacity, high heat exchange efficiency, wide working range and the like.
At present, most of domestic researches on efficient microchannel heat exchangers are in an experimental stage, and although some enterprises with leading technologies already produce the efficient microchannel heat exchangers and put the efficient microchannel heat exchangers into the market, the heat exchange efficiency is not high, and the structural design of the efficient microchannel heat exchangers and the arrangement form of cold-side plates and hot-side plates are particularly important for further improving the heat exchange efficiency.
Disclosure of Invention
The invention provides a plate group of a block staggered micro-channel plate type heat exchanger, aiming at solving the technical problem that the heat exchange efficiency of the high-efficiency micro-channel heat exchanger in the prior art is not high in the background technology.
The invention provides a plate set of a block staggered micro-channel plate heat exchanger, which comprises a hot side plate, a cold side plate, a flow channel, a hot side plate block and a cold side plate block, wherein the hot side plate and the cold side plate are arranged in an up-and-down overlapping mode, a plurality of flow channels are arranged on the hot side plate and the cold side plate, the flow channels on the hot side plate and the cold side plate are correspondingly overlapped, a plurality of hot side plate blocks are arranged in the flow channel of the hot side plate, a plurality of cold side plate blocks are arranged in the flow channel of the cold side plate, and the hot side plate block and the cold side plate block are rhombic blocks and are in staggered distribution with each other.
Preferably, the hot side plate and the cold side plate are both high temperature alloy plates.
Preferably, the hot side plate is Z-shaped, and a hot side plate medium inlet and a hot side plate medium outlet of the hot side plate are arranged perpendicular to the overlapped part of the plate and are oppositely arranged on two sides.
Preferably, the cold-side plate is in a straight shape, and a cold-side plate medium inlet and a cold-side plate medium outlet are respectively positioned at the front end and the rear end of the plate.
Preferably, the flow channel is 2mm wide and 1.2mm deep.
Preferably, the flow channel is formed by etching or machining.
Preferably, the height of the hot side slab block and the cold side slab block are both lower than the depth of the flow channel.
Preferably, the hot side slab block and the cold side slab block have dimensions of 1.6mm in length, 0.8mm in width and 0.8mm to 1.0mm in height.
Preferably, the hot side plate block and the cold side plate block are fixedly connected with the bottom surface of the flow channel in a welding mode.
Preferably, the hot and cold side plates are welded in a stacked configuration by vacuum diffusion welding.
The plate group of the block staggered micro-channel plate heat exchanger has the beneficial effects that:
1. the invention relates to an improvement on the arrangement form of plates of a microchannel plate heat exchanger, wherein a cold side plate and a hot side plate of the microchannel plate heat exchanger with built-in blocking blocks in a flow channel are stacked, so that the blocking blocks of the cold side plate and the blocking blocks of the hot side plate are distributed in a staggered manner and are welded in a vacuum diffusion welding manner to form a blocking block staggered type microchannel plate heat exchanger plate set.
2. The arrangement form of the invention leads the vortex or turbulent flow to be generated in the area of the heat exchange surface in a staggered way and the secondary flow to be formed by mutual collision, thus greatly improving the heat exchange efficiency. Meanwhile, the plate set has the characteristics of simple structure, novelty and practicability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a front view of a plate group of a block staggered micro-channel plate heat exchanger according to the present invention;
FIG. 2 is an isometric view of a plate pack of a block staggered micro-channel plate heat exchanger according to the present invention;
FIG. 3 is a schematic view of a hot side plate construction according to the present invention;
FIG. 4 is a schematic view of a cold-side sheet structure according to the present invention;
the hot side plate heat exchanger comprises a hot side plate medium inlet 1, a flow channel 2, a hot side plate block 3, a cold side plate block 4, a hot side plate medium outlet 5, a hot side plate 6, a cold side plate 7, a cold side plate medium inlet 8 and a cold side plate medium outlet 9.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1 to 4. This embodiment block staggered arrangement formula microchannel plate heat exchanger's slab group, including hot side slab 6, cold side slab 7, runner 2, hot side slab block 3 and cold side slab block 4, hot side slab 6 and cold side slab 7 overlap from top to bottom and place, all be provided with many runners 2 on hot side slab 6 and the cold side slab 7, the runner on hot side slab and the cold side slab corresponds the overlapping, be provided with a plurality of hot side slab blocks 3 in hot side slab 6's the runner 2, be provided with a plurality of cold side slab blocks 4 in the runner 2 of cold side slab 7, hot side slab block 3 and cold side slab block 4 are rhombus block and are crisscross the distribution each other. The staggered distribution is caused by the fact that the hot side plate 6 and the cold side plate 7 are stacked one on top of the other.
The hot side plate 6 and the cold side plate 7 are both high-temperature alloy plates. The hot side plate 6 and the cold side plate 7 are welded in a stacked form by means of vacuum diffusion welding.
The hot side plate 6 is Z-shaped, and the hot side plate medium inlet 1 and the hot side plate medium outlet 5 are vertically arranged at the overlapped part of the plate and are positioned at two sides and oppositely arranged.
The cold-side plate 7 is in a straight line shape, and a cold-side plate medium inlet 8 and a cold-side plate medium outlet 9 are respectively positioned at the front end and the rear end of the plate. The directions of the hot-side medium inlet 1 and the hot-side medium outlet 5 of the hot-side plate 6 and the directions of the cold-side medium inlet 8 and the cold-side medium outlet 9 of the cold-side plate 7 are vertically distributed, and the distribution mode can effectively avoid the mixing of the cold-side medium and the hot-side medium and improve the heat exchange efficiency.
The width of the flow channel 2 is 2mm, and the depth is 1.2 mm. The flow channel 2 is formed by etching or machining.
The height of the hot side plate block 3 and the cold side plate block 4 is lower than the depth of the flow channel 2. The height of the hot side plate block 3 and the cold side plate block 4 is 0.8mm-1.0 mm. The sizes of the hot side plate block 3 and the cold side plate block 4 are 1.6mm in length and 0.8mm in width.
And the hot-side plate block 3 and the cold-side plate block 4 are fixedly connected with the bottom surface of the flow channel in a welding mode.
As shown in fig. 1 and 2, a certain number of rhombic blocking blocks are arranged in the flow channel of the high-temperature alloy plate for forming the flow channel 2 by etching or machining, the rhombic blocking blocks can be fixedly connected with the bottom surface of the flow channel by welding, and the height of the rhombic blocking blocks is slightly lower than the depth of the flow channel. The number of the rhombic blocking blocks is determined by specific heat exchange efficiency.
The invention creatively improves the arrangement form of the plates of the micro-channel plate heat exchanger, stacks the cold side plate 6 and the hot side plate 7 of the micro-channel plate heat exchanger with the built-in block in the flow channel up and down, leads the block of the cold side plate 6 and the block of the hot side plate 7 to be in a staggered distribution mode, and welds the cold side plate 6 and the hot side plate 7 in a vacuum diffusion welding mode. Therefore, the plate set of the block staggered micro-channel plate heat exchanger is formed, and the heat exchange efficiency of the heat exchanger can be obviously improved.
The arrangement mode leads the microchannel plate heat exchanger to generate vortex or turbulent flow in the heat exchange surface area in a staggered way and to mutually collide to form secondary flow, the fluid in the turbulent flow state can accelerate the flowing speed of the fluid in the flow channel and increase the specific surface area of the flow channel, and further leads the fluid thin layer on the wall surface of the flow channel to be thinned, the thermal resistance of the fluid thin layer is reduced, the heat exchange efficiency is greatly improved, and the heat exchange performance can be obviously enhanced. Meanwhile, the plate set has the characteristics of novel structure, simplicity and practicability.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a stop block staggered arrangement formula microchannel plate heat exchanger's slab group, its characterized in that, includes hot side slab (6), cold side slab (7), runner (2), hot side slab stop block (3) and cold side slab stop block (4), hot side slab (6) and cold side slab (7) overlap from top to bottom and place, all be provided with many runners (2) on hot side slab (6) and the cold side slab (7), the runner on hot side slab (6) and the cold side slab (7) corresponds the overlapping, be provided with a plurality of hot side slab stop blocks (3) in runner (2) of hot side slab (6), be provided with a plurality of cold side slab stop blocks (4) in runner (2) of cold side slab (7), hot side slab stop block (3) and cold side slab stop block (4) are the rhombus and are crisscross distribution each other.
2. The plate pack of the block staggered microchannel plate heat exchanger of claim 1, wherein the hot side plate (6) and the cold side plate (7) are both high temperature alloy plates.
3. The plate pack of the block staggered micro-channel plate heat exchanger according to claim 1, wherein the hot side plate (6) is Z-shaped, and a hot side plate medium inlet (1) and a hot side plate medium outlet (5) of the hot side plate are vertically arranged with the overlapped part of the plates and are oppositely arranged at two sides.
4. The plate pack of the block staggered micro-channel plate heat exchanger according to claim 1, wherein the cold side plate (7) is in a straight shape, and a cold side plate medium inlet (8) and a cold side plate medium outlet (9) thereof are respectively located at the front and rear ends of the plate.
5. The plate pack of the block staggered micro-channel plate heat exchanger according to claim 1, wherein the flow channels (2) are 2mm wide and 1.2mm deep.
6. The plate pack of the block staggered micro channel plate heat exchanger according to claim 1, wherein the flow channels (2) are formed by etching or machining.
7. The plate pack of the block staggered micro-channel plate heat exchanger according to claim 1, wherein the height of the hot side plate block (3) and the cold side plate block (4) is lower than the depth of the flow channel (2).
8. The plate pack of the block staggered micro-channel plate heat exchanger according to claim 1, wherein the hot side plate block (3) and the cold side plate block (4) have the dimensions of 1.6mm in length, 0.8mm in width and 0.8mm to 1.0mm in height.
9. The plate group of the block staggered micro-channel plate heat exchanger as claimed in claim 1, wherein the hot side plate block (3) and the cold side plate block (4) are fixedly connected with the bottom surface of the flow channel in a welding manner.
10. The plate pack of the block staggered microchannel plate heat exchanger of claim 1, wherein the hot side plate (6) and the cold side plate (7) are welded in a stacked form by means of vacuum diffusion welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372582.2A CN114001569A (en) | 2021-11-18 | 2021-11-18 | Plate sheet group of block staggered micro-channel plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372582.2A CN114001569A (en) | 2021-11-18 | 2021-11-18 | Plate sheet group of block staggered micro-channel plate heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114001569A true CN114001569A (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111372582.2A Pending CN114001569A (en) | 2021-11-18 | 2021-11-18 | Plate sheet group of block staggered micro-channel plate heat exchanger |
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| CN (1) | CN114001569A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070366A (en) * | 2022-06-14 | 2022-09-20 | 西安热工研究院有限公司 | PCHE heat exchanger processing method capable of avoiding chemical etching |
-
2021
- 2021-11-18 CN CN202111372582.2A patent/CN114001569A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115070366A (en) * | 2022-06-14 | 2022-09-20 | 西安热工研究院有限公司 | PCHE heat exchanger processing method capable of avoiding chemical etching |
| CN115070366B (en) * | 2022-06-14 | 2023-08-15 | 西安热工研究院有限公司 | PCHE heat exchanger processing method capable of avoiding chemical etching |
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