CN219494934U - Microchannel heat exchanger structure - Google Patents
Microchannel heat exchanger structure Download PDFInfo
- Publication number
- CN219494934U CN219494934U CN202320816239.0U CN202320816239U CN219494934U CN 219494934 U CN219494934 U CN 219494934U CN 202320816239 U CN202320816239 U CN 202320816239U CN 219494934 U CN219494934 U CN 219494934U
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- hot
- flat tube
- cold
- tube assembly
- air outlet
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- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 241000353097 Molva molva Species 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction 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 structure, which relates to the technical field of micro-channel heat exchangers and comprises a cold flat tube assembly and a hot flat tube assembly, wherein the upper ends of the Leng Bian tube assembly and the hot flat tube assembly are provided with reversing headers, the lower end of the cold flat tube assembly is connected with a liquid inlet header, and the lower end of the hot flat tube assembly is connected with an air outlet header; the cold flat pipe assembly comprises a first cold flat pipe section and a second cold flat pipe section, and the hot flat pipe assembly comprises a first hot flat pipe section and a second hot flat pipe section. The utility model ensures that cold air and hot air are fully mixed by the alternate distribution arrangement of the cold flat pipes and the hot flat pipes, so that the relatively medium air outlet temperature is reached, the refrigerating capacity is reduced along with the increase of gas state at the top of the cold flat pipes, the air outlet temperature is at a medium temperature level, and the whole air outlet temperature of the whole microchannel heat exchanger tends to be uniform, so that the structure can solve the problem that the air outlet temperature is unevenly distributed and vertical temperature gradient is generated when single-row microchannels are vertically arranged.
Description
Technical Field
The utility model relates to the technical field of micro-channel heat exchangers, in particular to a micro-channel heat exchanger structure.
Background
The microchannel heat exchanger is a heat exchanger which is designed to meet the development requirement of the electronic industry and has compact structure, light weight and high efficiency.
At present, due to the drainage problem of the micro-channel heat exchanger, the flat tubes can only be vertically or obliquely arranged at a certain angle. The refrigerant enters from the bottom of the microchannel heat exchanger and flows out from the upper part, so that the bottom two-phase refrigerant refrigerating effect is stronger than the upper overheated gaseous refrigerant refrigerating effect, the cooling and heating at the air outlet temperature are caused, the vertical temperature gradient is generated, and the phenomenon of uneven temperature field distribution is caused. When the air outlet temperature distribution is uneven, the fan is not controlled in an air outlet temperature control mode or an air inlet and outlet temperature difference control mode with the air outlet temperature participating in control.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a microchannel heat exchanger structure which can solve the problems of uneven distribution of air outlet temperature and vertical temperature gradient when single-row microchannels are vertically arranged, avoid the phenomenon of uncontrolled fans and has better economic effect.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the micro-channel heat exchanger structure comprises a cold flat tube assembly and a hot flat tube assembly, wherein a reversing header is arranged at the upper ends of the Leng Bian tube assembly and the hot flat tube assembly, a liquid inlet header is connected at the lower end of the cold flat tube assembly, and an air outlet header is connected at the lower end of the hot flat tube assembly;
the cold flat tube assembly comprises a first cold flat tube section and a second cold flat tube section, the hot flat tube assembly comprises a first hot flat tube section and a second hot flat tube section, a first fin is connected between the first cold flat tube section and the first hot flat tube section, a second fin is connected between the second cold flat tube sections, and a third fin is connected between the second hot flat tube sections.
Preferably, the first fin is fixedly connected with the first section of the cold flat pipe and the first section of the hot flat pipe, the second fin is fixedly connected with the second section of the cold flat pipe, the third fin is fixedly connected with the second section of the hot flat pipe, and the first fin, the second fin and the third fin are all in continuous zigzag structures.
Preferably, a liquid inlet pipe interface is arranged outside the liquid inlet header, and an air outlet pipe interface is arranged outside the air outlet header.
Preferably, the upper ends of the Leng Bian pipe assembly and the hot flat pipe assembly are fixedly connected with the reversing header, and the lower ends of the cold flat pipe assembly and the hot flat pipe assembly are respectively and fixedly connected with the liquid inlet header and the air outlet header.
Preferably, the Leng Bian tube assemblies and the hot flat tube assemblies are alternately distributed.
Preferably, an included angle between the first section of the hot flat pipe and the second section of the hot flat pipe is larger than 90 degrees.
Compared with the prior art, the utility model has the beneficial effects that:
through cold flat pipe and the alternate distribution setting of hot flat pipe, make cold hot wind intensive mixing, reach the relatively moderate air-out temperature, and top refrigerant increases along with the gaseous state, and refrigerating capacity reduces, and the air-out temperature originally just is in moderate temperature level, and whole microchannel heat exchanger air-out temperature is whole like this tends to even, so this structure can solve the problem that air-out temperature cold and hot distribution is uneven, produce vertical temperature gradient when single row microchannel arranges perpendicularly, avoids the uncontrolled phenomenon of fan, and economic benefits is better.
Drawings
Fig. 1 is a schematic view of a first view angle structure of a microchannel heat exchanger according to the present utility model;
fig. 2 is a schematic view of a second view structure of a microchannel heat exchanger according to the present utility model.
In the figure: 10. a cold flat tube assembly; 101. cooling a flat pipe section; 102. a second section of the cold flat pipe; 20. a heat flat tube assembly; 201. a section of hot flat tube; 202. a second section of the hot flat tube; 30. a first fin; 40. a second fin; 50. a third fin; 60. a liquid inlet header; 70. a liquid inlet pipe interface; 80. an outlet header; 90. an air outlet pipe interface; 100. a reversing header.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-2, a microchannel heat exchanger structure comprises a cold flat tube assembly 10 and a hot flat tube assembly 20, wherein the upper ends of the cold flat tube assembly 10 and the hot flat tube assembly 20 are fixedly connected with a reversing header 100, the lower end of the cold flat tube assembly 10 is fixedly connected with a liquid inlet header 60, a liquid inlet pipe joint 70 is arranged outside the liquid inlet header 60, a liquid inlet pipe body is connected with the liquid inlet end of the liquid inlet pipe joint 70, an air outlet header 80 is fixedly connected with the lower end of the hot flat tube assembly 20, an air outlet pipe interface 90 is arranged outside the air outlet pipe 80, the air outlet end of the air outlet pipe interface 90 is connected with an air outlet pipe body, the cold flat tube assembly 10 comprises a first cold flat tube section 101 and a second cold flat tube section 102, a first fin 30 is connected between the first cold flat tube section 101 and the first hot flat tube section 201, a second fin 40 is connected between the two adjacent cold flat tube sections 102, and a third fin 50 is connected between the two adjacent hot flat tube sections 202.
The first fin 30 is fixedly connected with the first section 101 of the cold flat tube and the first section 201 of the hot flat tube, the second fin 40 is fixedly connected with the second section 102 of the cold flat tube, the third fin 50 is fixedly connected with the second section 202 of the hot flat tube, the first fin 30, the second fin 40 and the third fin 50 are all in continuous saw-tooth structures, and the first fin 30, the second fin 40 and the third fin 50 can enhance the heat exchange efficiency of the micro-channel heat exchanger and air.
The cold flat tube assembly 10 and the hot flat tube assembly 20 are alternately distributed, so that adjacent cold flat tube assemblies 10 and hot flat tube assemblies 20 can form a double-flow-path flow path.
The included angle between the first section 201 and the second section 202 is greater than 90 ° so that the two ends of the flat tube assembly 20 can be connected to the reversing header 100 and the outlet header 80, respectively.
According to the utility model, through the alternate distribution of the cold flat tube assembly 10 and the hot flat tube assembly 20, the adjacent cold flat tube assembly 10 and hot flat tube assembly 20 can form a double-flow Cheng Liulu, the refrigerant enters the liquid inlet header 60 from the liquid inlet tube joint 70, then enters the cold flat tube assembly 10 connected with the liquid inlet header 60, and returns after reaching the reversing header 100, enters the hot flat tube assembly 20 connected with the air outlet header 80, finally, the refrigerant sequentially flows out of the micro-channel heat exchanger through the air outlet header 80 and the air outlet tube joint 90, so that the refrigerant at the top can return to the bottom, the refrigerant refrigerating capacity at the cold flat tube assembly 10 connected with the liquid inlet header 60 is strongest, the refrigerant refrigerating capacity at the hot flat tube assembly 20 connected with the air outlet header 80 is weakest, the lower part of the micro-channel heat exchanger reaches relatively medium air outlet temperature through the alternate distribution of the cold flat tube assembly 10 and the hot flat tube assembly 20, the top refrigerant is reduced along with the increase of the air state, the air outlet temperature is at the medium temperature level, the whole micro-channel heat exchanger tends to be in the air outlet temperature, the whole micro-channel heat exchanger tends to have uniform air outlet temperature, the problem of the micro-channel heat exchanger is solved, and the problem of poor air outlet temperature gradient arrangement is solved, and the problem of the micro-channel heat exchanger is not perpendicular to be distributed when the temperature gradient is not good is solved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The micro-channel heat exchanger structure comprises a cold flat tube assembly (10) and a hot flat tube assembly (20), and is characterized in that a reversing header (100) is arranged at the upper ends of the Leng Bian tube assembly (10) and the hot flat tube assembly (20), a liquid inlet header (60) is connected at the lower end of the cold flat tube assembly (10), and an air outlet header (80) is connected at the lower end of the hot flat tube assembly (20);
leng Bian pipe assembly (10) are including cold flat pipe one section (101) and cold flat pipe two sections (102), hot flat pipe assembly (20) are including hot flat pipe one section (201) and hot flat pipe two sections (202), be connected with first fin (30) between cold flat pipe one section (101) and the hot flat pipe one section (201), adjacent two be connected with second fin (40) between cold flat pipe two sections (102), adjacent two be connected with third fin (50) between hot flat pipe two sections (202).
2. The microchannel heat exchanger structure according to claim 1, wherein the first fin (30) is fixedly connected with the first section of cold flat tube (101) and the first section of hot flat tube (201), the second fin (40) is fixedly connected with the second section of cold flat tube (102), the third fin (50) is fixedly connected with the second section of hot flat tube (202), and the first fin (30), the second fin (40) and the third fin (50) are all in continuous zigzag structure.
3. A microchannel heat exchanger structure according to claim 1, wherein the inlet header (60) is provided externally with an inlet tube interface (70) and the outlet header (80) is provided externally with an outlet tube interface (90).
4. The microchannel heat exchanger structure according to claim 1, wherein the upper ends of the Leng Bian tube assembly (10) and the hot flat tube assembly (20) are fixedly connected to the reversing header (100), and the lower ends of the cold flat tube assembly (10) and the hot flat tube assembly (20) are fixedly connected to the liquid inlet header (60) and the air outlet header (80), respectively.
5. A microchannel heat exchanger structure according to claim 1, wherein the Leng Bian tube assemblies (10) and the hot flat tube assemblies (20) are alternately distributed.
6. A microchannel heat exchanger structure according to claim 1, wherein the angle between the first section of hot flat tube (201) and the second section of hot flat tube (202) is greater than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320816239.0U CN219494934U (en) | 2023-04-13 | 2023-04-13 | Microchannel heat exchanger structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320816239.0U CN219494934U (en) | 2023-04-13 | 2023-04-13 | Microchannel heat exchanger structure |
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| Publication Number | Publication Date |
|---|---|
| CN219494934U true CN219494934U (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320816239.0U Active CN219494934U (en) | 2023-04-13 | 2023-04-13 | Microchannel heat exchanger structure |
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| Country | Link |
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| CN (1) | CN219494934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116465234A (en) * | 2023-04-13 | 2023-07-21 | 克莱门特捷联制冷设备(上海)有限公司 | A Microchannel Heat Exchanger Structure |
-
2023
- 2023-04-13 CN CN202320816239.0U patent/CN219494934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116465234A (en) * | 2023-04-13 | 2023-07-21 | 克莱门特捷联制冷设备(上海)有限公司 | A Microchannel Heat Exchanger Structure |
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