CN220356160U - Low-temperature air heat exchanger - Google Patents
Low-temperature air heat exchanger Download PDFInfo
- Publication number
- CN220356160U CN220356160U CN202322036116.8U CN202322036116U CN220356160U CN 220356160 U CN220356160 U CN 220356160U CN 202322036116 U CN202322036116 U CN 202322036116U CN 220356160 U CN220356160 U CN 220356160U
- Authority
- CN
- China
- Prior art keywords
- gas
- heat exchange
- air
- heat exchanger
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000712 assembly Effects 0.000 claims abstract description 3
- 238000000429 assembly Methods 0.000 claims abstract description 3
- 229920000742 Cotton Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 description 14
- 238000010992 reflux Methods 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a low-temperature air heat exchanger, which is applied to the technical field of air heat exchangers and has the technical scheme that: the heat exchange device comprises a heat exchange cavity, wherein a first air inlet and a first air outlet are respectively formed in two ends of the heat exchange cavity; a plurality of first gas flow dividing plates and heat exchange plate main bodies are uniformly and alternately arranged in the heat exchange cavity in parallel along the flow direction of gas, a backflow heat exchange cavity is fixedly arranged on the heat exchange cavity, the heat exchange plate main bodies extend into the backflow heat exchange cavity, a temperature sensor for detecting the temperature of the gas is fixedly arranged at a first gas outlet, and backflow assemblies connected with the backflow heat exchange cavity and a first switch valve for controlling gas output are also fixedly arranged at the first gas outlet along the flow direction of the gas respectively; the method has the technical effects that: the heat exchange efficiency is improved, the heat exchange effect is good, and the volume of the heat exchanger is saved.
Description
Technical Field
The utility model relates to the technical field of air heat exchangers, in particular to a low-temperature air heat exchanger.
Background
In some semiconductor probe station equipment processes, low-temperature compressed air is required to be used, and the compressed air is required to be cooled to below-60 ℃ through a heat exchanger so as to meet the production requirements. In order to reduce the temperature of the compressed air at the outlet of the heat exchanger to a required temperature, one method increases the transmission time of the compressed air in the heat exchanger by increasing the length of the heat exchanger so as to enable the compressed air to have sufficient heat exchange and cooling time, but the volume of the heat exchanger is greatly increased, and the other method redirects the compressed air discharged from the heat exchanger into the heat exchanger or circulates the compressed air in the heat exchanger so as to enable the temperature of the compressed air to be reduced to a required value, but the return flow process may cause the return flow compressed air to be contacted with the new compressed air so as to generate turbulence, thereby influencing the heat exchange effect of the compressed air, reducing the heat exchange efficiency and having the necessity of improvement.
Disclosure of Invention
The utility model aims to provide a low-temperature air heat exchanger, which has the advantages of improving heat exchange efficiency, having good heat exchange effect and saving the volume of the heat exchanger.
The technical aim of the utility model is realized by the following technical scheme: the low-temperature air heat exchanger comprises a heat exchange cavity, wherein a first air inlet and a first air outlet are respectively formed in two ends of the heat exchange cavity; the heat exchange cavity is internally and uniformly staggered and parallelly provided with a plurality of first gas flow dividing plates and heat exchange plate main bodies along the flow direction of gas, the heat exchange cavity is also fixedly provided with a backflow heat exchange cavity, the heat exchange plate main bodies extend into the backflow heat exchange cavity, a temperature sensor for detecting the temperature of the gas is fixedly arranged at a first gas outlet, and backflow assemblies connected with the backflow heat exchange cavity and a first switch valve for controlling gas output are also fixedly arranged at the first gas outlet along the flow direction of the gas.
The utility model is further provided with: the heat-return heat exchange cavity is internally provided with a plurality of second gas flow distribution plates along the flowing direction of gas, and the first gas flow distribution plates and the second gas flow distribution plates are identical in structure and comprise a flow distribution plate matrix and a plurality of gas flow distribution holes which are uniformly arranged and arranged on the flow distribution plate matrix and are used for enabling gas to uniformly flow through the flow distribution plate matrix.
The utility model is further provided with: the gas reflux assembly comprises a gas reflux cavity fixedly connected to the first gas outlet, a second gas inlet and a second gas outlet are respectively formed in two ends of the reflux heat exchange cavity, a third gas outlet communicated with the second gas inlet is formed in the gas reflux cavity, the second gas outlet is connected to the first gas outlet based on a gas reflux pipeline, and a second switch valve is fixedly arranged at the third gas outlet.
The utility model is further provided with: the gas return pipeline is obliquely and fixedly connected to the first gas outlet along the gas discharge direction.
The utility model is further provided with: the heat exchange cavity is internally provided with two heat exchange plate bodies, the heat exchange plate bodies are respectively a first heat exchange plate body and a second heat exchange plate body along the air flowing direction, the surface temperature of the first heat exchange plate body is not higher than the set temperature, and the surface temperature of the second heat exchange plate body is lower than 20 ℃ below the set temperature.
The utility model is further provided with: and heat insulation cotton is arranged between the heat exchange cavity and the back flow heat exchange cavity.
The utility model is further provided with: and a one-way valve for preventing air from flowing back into the heat exchange cavity is fixedly arranged at the first air outlet.
In summary, the utility model has the following beneficial effects:
1. the heat exchange cavity is arranged, the temperature sensor is arranged at the first air outlet, the first switch valve is arranged, when the temperature sensor detects that the temperature of the gas at the first air outlet is not compounded with the set temperature, the first switch valve is closed, air is discharged from the third air outlet and enters the heat exchange cavity for secondary reflux cooling, the occupied area of the heat exchanger is reduced, and meanwhile, the heat exchange cavity is not contacted with the air in the heat exchange cavity to cause turbulence, so that the heat exchange effect of the gas is improved, the gas reflux pipeline is obliquely and fixedly connected to the first air outlet along the discharging direction of the gas, the gas after reflux cooling can be smoothly mixed with the gas discharged from the heat exchange cavity, the stability of gas mixing is improved, and the heat exchange effect is improved;
2. the two heat exchange plate bodies are arranged in the heat exchange cavity, the surface temperature of the first heat exchange plate body is not higher than the set temperature, the surface temperature of the second heat exchange plate body is lower than the set temperature by 20 ℃, the temperature of gas can be reduced as much as possible when the gas passes through the heat exchange plate body, the set temperature can be reduced as much as possible, the heat exchange efficiency is improved, and the check valve is arranged to prevent the air passing through the reflux cooling from entering the heat exchange cavity to affect the gas heat exchange process in the heat exchange cavity.
Drawings
Fig. 1 is a schematic overall structure of the present embodiment.
Reference numerals: 1. a heat exchange cavity; 11. a first air inlet; 12. a first air outlet; 13. a first gas manifold; 14. a heat exchange plate main body; 141. a first heat exchanger plate main body; 142. a second heat exchanger plate main body; 15. a temperature sensor; 16. a first switching valve; 2. a reflow heat exchange cavity; 21. a second gas manifold; 22. a diverter plate substrate; 23. a gas diversion aperture; 24. a second air inlet; 25. a second air outlet; 26. a gas return line; 3. a reflow assembly; 31. a gas reflow chamber; 32. a third air outlet; 33. a second switching valve; 4. thermal insulation cotton; 5. a one-way valve.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Examples:
referring to fig. 1, a low temperature air heat exchanger, including heat exchange cavity 1, first air inlet 11 and first gas outlet 12 have been seted up respectively at heat exchange cavity 1 both ends, a plurality of first gas flow distribution plates 13 and heat exchanger plate main part 14 are fixed side by side along the flow direction of gas evenly in heat exchange cavity 1, thereby the air gets into heat exchange cavity 1 from first air inlet 11, thereby make gas evenly shunt the back through heat exchanger plate main part 14 carry out heat exchange after, thereby realize the gas cooling, still fixed being equipped with backward flow heat exchange cavity 2 on heat exchange cavity 1, thereby heat exchanger plate main part 14 extends into backward flow heat exchange cavity 2 in order to reduce the required cost of heat exchanger plate main part 14, heat exchanger cavity 1 and backward flow heat exchange cavity 2 are filled with heat insulating cotton 4, thereby avoid producing heat exchange between heat exchange cavity 1 and the backward flow heat exchange cavity 2 and influence the heat exchange effect, fixed being equipped with in first gas outlet 12 department is used for detecting gas temperature's temperature sensor 15, thereby still fixed being equipped with respectively in first gas outlet 12 along the flow direction and being connected backward flow heat exchange cavity 2's backward flow subassembly 3 and be used for controlling gas output's first switch valve 16, thereby the heat exchanger plate main part is used for controlling gas output's heat exchange, when the temperature sensor 15 detects the air outlet 12 detects the air outlet and the temperature sensor 15, thereby the air outlet is cooled down and the heat exchange cavity 1 is cooled down, the heat exchange cavity is cooled down and the air flow 1 is carried out the heat exchange cavity is not and the heat exchange cavity is influenced by the heat exchange cavity is cooled down to the air through the required to the heat exchange cavity 1, and the air. The check valve 5 for preventing air from flowing back into the heat exchange cavity 1 is fixedly arranged at the first air outlet 12, so that the influence on the gas heat exchange process in the heat exchange cavity 1 caused by the fact that the air subjected to back flow cooling enters into the heat exchange cavity 1 is avoided.
Referring to fig. 1, specifically, the reflow assembly 3 includes a gas reflow chamber 31 fixedly connected to the first gas outlet, two ends of the reflow heat exchange chamber 2 are respectively provided with a second gas inlet 24 and a second gas outlet 25, the gas reflow chamber 31 is provided with a third gas outlet 32 communicated with the second gas inlet 24, the second gas outlet 25 is connected to the first gas outlet 12 based on a gas reflow pipeline 26, a second switch valve 33 is fixedly arranged at the third gas outlet 32, when the temperature sensor 15 detects that the gas temperature at the first gas outlet 12 is not compounded with the set temperature, the first switch valve 16 is closed, the second switch valve 33 is opened, air is discharged from the third gas outlet 32 and enters the reflow heat exchange chamber 2 for reflow cooling again, and the gas after reflow cooling enters the first gas outlet 12 through the gas reflow pipeline 26 to be fully mixed with the gas discharged from the heat exchange chamber 1, thereby reducing the overall temperature of the gas. The gas return pipeline 26 is fixedly connected to the first gas outlet 12 in an inclined manner along the gas discharge direction, so that the gas after being subjected to return cooling can be smoothly mixed with the gas discharged from the heat exchange cavity 1, the stability of gas mixing is improved, and the heat exchange effect is improved.
Specifically, a plurality of second gas splitter plates 21 are fixedly arranged in the heat return exchange cavity 2 along the flowing direction of the gas, the first gas splitter plates 13 and the second gas splitter plates 21 have the same structure, and the first gas splitter plates comprise splitter plate matrixes 22 and a plurality of gas splitter holes 23 which are uniformly arranged on the splitter plate matrixes 22 and are used for enabling the gas to uniformly flow through the splitter plate matrixes 22, so that the gas can uniformly pass through the splitter plate matrixes to be fully mixed with the heat exchange plate main body 14, and the heat exchange effect of the gas is improved.
Specifically, two heat exchange plate bodies 14 are arranged in the heat exchange cavity 1, the first heat exchange plate body 141 and the second heat exchange plate body 142 are respectively arranged along the air flowing direction, the surface temperature of the first heat exchange plate body 141 is not higher than the set temperature, the surface temperature of the second heat exchange plate body 142 is lower than 20 ℃ below the set temperature, the temperature of gas can be reduced as much as possible when passing through the heat exchange cavity, the set temperature can be reduced as much as possible, the heat exchange efficiency is improved, meanwhile, the gas which passes through the backflow needs to be fully exchanged after being mixed with the gas which passes through the primary heat exchange, the temperature of the gas which passes through the primary heat exchange is relatively higher, the temperature of the gas which passes through the backflow is relatively lower, and the surface temperature of the second heat exchange plate body 142 is lower than the set temperature, so that the whole temperature of the gas can be reduced to the set temperature when the gas which passes through the backflow is mixed with the gas which passes through the primary cooling, and the cooling efficiency of the gas is improved. In this embodiment, the number of mixing times of the gas after the backflow and the gas after the primary cooling is not more than 3, if the number of mixing times is more than 3, the heat exchanger is damaged, and the system alarms.
The use process is briefly described: air enters the heat exchange cavity 1 from the first air inlet 11, sequentially passes through the first gas splitter plate 13, is discharged from the first air outlet 12 after being subjected to heat exchange through the heat exchange plate main body 14 after being uniformly split, the temperature sensor 15 detects the gas temperature, the first switch valve 16 is opened if the gas temperature reaches the set temperature, the second switch valve 33 is closed, the gas is discharged, the first switch valve 16 is closed if the temperature sensor 15 detects that the gas temperature at the first air outlet 12 is not compounded with the set temperature, and the air flows into the mixed flow heat exchange cavity 1 through the backflow component 3 for backflow cooling again, and is mixed with the gas subjected to primary cooling and then subjected to temperature measurement again, so that the air is reciprocated.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment which may creatively contribute to the present utility model as required may be made by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present utility model.
Claims (7)
1. The low-temperature air heat exchanger comprises a heat exchange cavity (1), wherein a first air inlet (11) and a first air outlet (12) are respectively formed in two ends of the heat exchange cavity (1); the heat exchange device is characterized in that a plurality of first gas flow distribution plates (13) and heat exchange plate main bodies (14) are uniformly and alternately arranged in the heat exchange cavity (1) in parallel along the flow direction of gas, a backflow heat exchange cavity (2) is fixedly arranged on the heat exchange cavity (1), the heat exchange plate main bodies (14) extend into the backflow heat exchange cavity (2), a temperature sensor (15) for detecting the temperature of the gas is fixedly arranged at the first gas outlet (12), and backflow assemblies (3) connected with the backflow heat exchange cavity (2) and a first switch valve (16) for controlling the output of the gas are fixedly arranged at the first gas outlet (12) along the flow direction of the gas respectively.
2. The low-temperature air heat exchanger according to claim 1, wherein a plurality of second gas flow dividing plates (21) are fixedly arranged in the heat return cavity (2) along the flow direction of the gas, the first gas flow dividing plates (13) and the second gas flow dividing plates (21) have the same structure, and the heat return cavity comprises a flow dividing plate base body (22) and a plurality of gas flow dividing holes (23) uniformly arranged on the flow dividing plate base body (22) for enabling the gas to uniformly flow through the flow dividing plate base body (22).
3. The low-temperature air heat exchanger according to claim 1, wherein the backflow component (3) comprises a gas backflow cavity (31) fixedly connected to the first air outlet, a second air inlet (24) and a second air outlet (25) are respectively formed in two ends of the backflow heat exchange cavity (2), a third air outlet (32) communicated with the second air inlet (24) is formed in the gas backflow cavity (31), the second air outlet (25) is connected to the first air outlet (12) based on a gas backflow pipeline (26), and a second switch valve (33) is fixedly arranged at the third air outlet (32).
4. A cryogenic air heat exchanger according to claim 3, wherein the gas return conduit (26) is fixedly connected to the first gas outlet (12) at an inclination in the direction of the discharge of the gas.
5. A low temperature air heat exchanger according to claim 1, wherein two heat exchanger plate bodies (14) are provided in the heat exchange chamber (1), a first heat exchanger plate body (141) and a second heat exchanger plate body (142) are provided along the air flow direction, the surface temperature of the first heat exchanger plate body (141) is not higher than the set temperature, and the surface temperature of the second heat exchanger plate body (142) is lower than 20 ℃ below the set temperature.
6. A cryogenic air heat exchanger according to claim 1, characterized in that a heat insulating cotton (4) is arranged between the heat exchange chamber (1) and the heat return chamber (2).
7. A cryogenic air heat exchanger according to claim 1, characterized in that the first air outlet (12) is fixedly provided with a non-return valve (5) for preventing air from flowing back into the heat exchange chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322036116.8U CN220356160U (en) | 2023-07-31 | 2023-07-31 | Low-temperature air heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322036116.8U CN220356160U (en) | 2023-07-31 | 2023-07-31 | Low-temperature air heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220356160U true CN220356160U (en) | 2024-01-16 |
Family
ID=89480679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322036116.8U Active CN220356160U (en) | 2023-07-31 | 2023-07-31 | Low-temperature air heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220356160U (en) |
-
2023
- 2023-07-31 CN CN202322036116.8U patent/CN220356160U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210805957U (en) | Battery module liquid cooling board and liquid cooling battery package | |
| CN112822913A (en) | Penetrating ultrathin liquid cooling plate integrated with low-flow-resistance manifold network | |
| CN210052735U (en) | Novel attenuation chip heat dissipation device | |
| CN220356160U (en) | Low-temperature air heat exchanger | |
| CN111403848A (en) | Power battery thermal management system based on tab liquid cooling mode | |
| CN113611894A (en) | Hydrogen fuel cell waste heat utilization system | |
| CN209786138U (en) | Battery package liquid cooling plant | |
| CN110648984A (en) | Energy-efficient data center water cooling system | |
| CN115566223A (en) | Fuel cell thermal management system and fuel cell system | |
| CN216120380U (en) | Hydrogen fuel cell waste heat utilization system | |
| CN213402161U (en) | Heat dissipation device and power equipment | |
| CN209929443U (en) | Battery pack heat exchange system | |
| EP4015789B1 (en) | Cooling system for internal combustion engine | |
| CN114050286A (en) | Heat exchanger and fuel cell system | |
| CN112134195A (en) | Heat dissipation device and power equipment | |
| CN201740421U (en) | Automobile-used multi-row combined type radiator | |
| CN208480170U (en) | A kind of water cooling back board system | |
| CN220963413U (en) | Heat dissipation test bench of fuel cell system | |
| CN219873702U (en) | Energy storage water cooling system | |
| CN205248400U (en) | A high efficiency water -cooling board for battery | |
| CN218783108U (en) | Liquid cooling system and battery pack | |
| CN217035700U (en) | Power system | |
| CN220670220U (en) | Intermediate frequency furnace cooling system | |
| CN217604764U (en) | Pure water circulation heat exchange unit | |
| CN220341306U (en) | Battery core cooling module and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |