Plate-fin heat exchange structure with high heat exchange efficiency

Abstract

The utility model discloses a plate-fin heat exchange structure with high heat exchange efficiency, and relates to the technical field of plate-fin heat exchangers, the plate-fin heat exchange structure comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulent flow port, and the first heat exchange unit is stacked above the second heat exchange unit; the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side. The air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side. The partition plate is arranged between the first heat exchange unit and the second heat exchange unit; the first heat exchange unit communicates with the second heat exchange unit through the turbulent flow openings. The first heat exchange unit is configured to conduct turbulent flow on the second heat exchange unit through the turbulent flow opening. The first heat exchange unit is arranged to disturb gas in the second heat exchange unit, uniform heat exchange is achieved, and the heat exchange efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate fin heat exchanger technical field especially relates to a plate fin heat exchange structure with high heat exchange efficiency. BACKGROUND

[0002] Plate fin heat exchanger is a kind of efficient heat exchange equipment, is widely used in various industrial fields, such as air conditioner, refrigeration, chemical industry, aerospace etc. It is composed of multiple parallel arranged sheets and fins, and heat exchange is realized by the flow of fluid between sheets. Its working principle is: fluid enters heat exchanger through inlet and outlet, is distributed to different channels, fluid flows in channel, and heat exchange is carried out through sheet and fin, and fluid after heat exchange is collected to outlet and discharged from heat exchanger.

[0003] Chinese patent application No.202120079364.9 utility model patent discloses a kind of plate bundle and plate fin heat exchanger for plate fin heat exchanger, and the patent is stacked with heat exchange fin, and the pressure-bearing capacity of heat exchanger is improved by supporting block, but the turbulence performance of fluid is insufficient, resulting in low heat exchange efficiency. UTILITY MODEL CONTENT

[0004] To solve the problem of low heat exchange efficiency of heat exchanger due to weak turbulence effect on fluid in the prior art, the utility model provides a kind of plate fin heat exchange structure with high heat exchange efficiency, which can effectively improve heat exchange efficiency.

[0005] To achieve the above-mentioned purpose, the utility model takes the technical scheme that:

[0006] The utility model provides a kind of plate fin heat exchange structure with high heat exchange efficiency, including first heat exchange unit, second heat exchange unit and partition, and the partition is provided with turbulence port, wherein: first heat exchange unit is stacked above second heat exchange unit;The air inlet end of first heat exchange unit is arranged on the same side with the air inlet end of second heat exchange unit;The air outlet end of first heat exchange unit is arranged on the same side with the air outlet end of second heat exchange unit;Partition is arranged between first heat exchange unit and second heat exchange unit;Turbulence port communicates first heat exchange unit with second heat exchange unit;First heat exchange unit is configured to disturb second heat exchange unit through turbulence port.

[0007] The plate fin heat exchange structure provided by the utility model is preferably, first heat exchange unit is provided with first compression zone and first heat exchange zone, wherein: the air inlet end of first compression zone is arranged at the air inlet end of first heat exchange unit;The air outlet end of first compression zone corresponds to the air inlet end of first heat exchange zone;The air outlet end of first heat exchange zone is arranged at the air outlet end of first heat exchange unit;Turbulence port is arranged between the air outlet end of first compression zone and the air inlet end of first heat exchange zone.

[0008] The plate-fin heat exchange structure provided by the utility model has the advantages that the plate-fin heat exchange structure with high heat exchange efficiency relates to the technical field of plate-fin heat exchangers, and comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulence port, the first heat exchange unit is arranged above the second heat exchange unit, the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side, the air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side, the partition plate is arranged between the first heat exchange unit and the second heat exchange unit, the turbulence port is in communication with the first heat exchange unit and the second heat exchange unit, and the first heat exchange unit is configured to disturb the air in the second heat exchange unit through the turbulence port.

[0009] The plate-fin heat exchange structure provided by the utility model has the advantages that the plate-fin heat exchange structure with high heat exchange efficiency relates to the technical field of plate-fin heat exchangers, and comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulence port, the first heat exchange unit is arranged above the second heat exchange unit, the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side, the air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side, the partition plate is arranged between the first heat exchange unit and the second heat exchange unit, the turbulence port is in communication with the first heat exchange unit and the second heat exchange unit, and the first heat exchange unit is configured to disturb the air in the second heat exchange unit through the turbulence port.

[0010] The plate-fin heat exchange structure provided by the utility model has the advantages that the plate-fin heat exchange structure with high heat exchange efficiency relates to the technical field of plate-fin heat exchangers, and comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulence port, the first heat exchange unit is arranged above the second heat exchange unit, the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side, the air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side, the partition plate is arranged between the first heat exchange unit and the second heat exchange unit, the turbulence port is in communication with the first heat exchange unit and the second heat exchange unit, and the first heat exchange unit is configured to disturb the air in the second heat exchange unit through the turbulence port.

[0011] The plate-fin heat exchange structure provided by the utility model has the advantages that the plate-fin heat exchange structure with high heat exchange efficiency relates to the technical field of plate-fin heat exchangers, and comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulence port, the first heat exchange unit is arranged above the second heat exchange unit, the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side, the air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side, the partition plate is arranged between the first heat exchange unit and the second heat exchange unit, the turbulence port is in communication with the first heat exchange unit and the second heat exchange unit, and the first heat exchange unit is configured to disturb the air in the second heat exchange unit through the turbulence port.

[0012] The plate-fin heat exchange structure provided by the utility model has the advantages that the plate-fin heat exchange structure with high heat exchange efficiency relates to the technical field of plate-fin heat exchangers, and comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulence port, the first heat exchange unit is arranged above the second heat exchange unit, the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side, the air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side, the partition plate is arranged between the first heat exchange unit and the second heat exchange unit, the turbulence port is in communication with the first heat exchange unit and the second heat exchange unit, and the first heat exchange unit is configured to disturb the air in the second heat exchange unit through the turbulence port.

[0013] The plate-fin heat exchange structure provided by the utility model has the advantages that the plate-fin heat exchange structure with high heat exchange efficiency relates to the technical field of plate-fin heat exchangers, and comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulence port, the first heat exchange unit is arranged above the second heat exchange unit, the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side, the air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side, the partition plate is arranged between the first heat exchange unit and the second heat exchange unit, the turbulence port is in communication with the first heat exchange unit and the second heat exchange unit, and the first heat exchange unit is configured to disturb the air in the second heat exchange unit through the turbulence port.

[0014] The plate-fin heat exchange structure provided by the utility model has the advantages that the plate-fin heat exchange structure with high heat exchange efficiency relates to the technical field of plate-fin heat exchangers, and comprises a first heat exchange unit, a second heat exchange unit and a partition plate, the partition plate is provided with a turbulence port, the first heat exchange unit is arranged above the second heat exchange unit, the air inlet end of the first heat exchange unit and the air inlet end of the second heat exchange unit are arranged on the same side, the air outlet end of the first heat exchange unit and the air outlet end of the second heat exchange unit are arranged on the same side, the partition plate is arranged between the first heat exchange unit and the second heat exchange unit, the turbulence port is in communication with the first heat exchange unit and the second heat exchange unit, and the first heat exchange unit is configured to disturb the air in the second heat exchange unit through the turbulence port. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0016] Figure 1 The disassembly structure schematic view of the plate-fin heat exchange structure provided in Embodiment 1 of the utility model;

[0017] Figure 1 Comprise: 1, first air pressure board;2, first fin group;3, second air pressure board;31, booster area;32, steady flow area;33, heat dissipation fin;4, second fin group;5, partition;51, spoiler port. DETAILED DESCRIPTION

[0018] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals represent like elements, unless the context of use indicates otherwise. The following description of exemplary embodiments is not representative of all embodiments consistent with the present application. Rather, it is merely an example of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0019] Embodiment 1:

[0020] The plate-fin heat exchanger is a kind of high-efficiency heat exchange equipment, widely used in various industrial fields, such as air conditioning, refrigeration, chemical industry, aerospace, etc. It is composed of multiple parallel arranged plates and fins, and heat exchange is realized by the flow of fluid between the plates. Its working principle is: fluid enters the heat exchanger through the inlet and outlet, is distributed to different channels, fluid flows in the channel, and heat exchange is carried out through the plate and fin, and the fluid after heat exchange is collected to the outlet and discharged from the heat exchanger. The utility model patent with Chinese patent application number 202120079364.9 discloses a plate bundle for plate-fin heat exchanger and plate-fin heat exchanger, which stacks the heat exchange fins and places them through the support block to improve the pressure-bearing capacity of the heat exchanger, but the fluid disturbance performance is insufficient, resulting in low heat exchange efficiency.

[0021] As Figure 1 shown:

[0022] The utility model provides a kind of plate-fin heat exchange structure of high heat exchange efficiency, including first heat exchange unit, second heat exchange unit and baffle 5, baffle 5 is equipped with turbulence port 51, wherein: first heat exchange unit is stacked in the upper of second heat exchange unit;The air inlet end of first heat exchange unit is with the air inlet end of second heat exchange unit same side arrangement;The air outlet end of first heat exchange unit is with the air outlet end of second heat exchange unit same side arrangement;Baffle 5 is located between first heat exchange unit and second heat exchange unit;Turbulence port 51 is communicated with first heat exchange unit and second heat exchange unit;First heat exchange unit is configured to turbulence port 51 to the turbulence of second heat exchange unit.First heat exchange unit and second heat exchange unit are all involved in heat exchange work, gas enters first heat exchange unit and second heat exchange unit from the air inlet end of first heat exchange unit and the air inlet end of second heat exchange unit respectively, and a part of gas in first heat exchange unit is discharged from the air outlet end of first heat exchange unit after heat exchange, another part of gas enters second heat exchange unit from turbulence port 51, and turbulence is generated after contacting with the gas in second heat exchange unit, and the turbulence can make gas move in multiple directions, realize uniform heat exchange, and the gas flow rate also decreases, so that heat exchange time is longer, and heat exchange is more sufficient.The gas flow of second heat exchange unit in unit time should be greater than the gas flow of first heat exchange unit in unit time, i.e., second heat exchange unit undertakes main heat exchange work, and first heat exchange unit mainly undertakes the turbulence of gas in second heat exchange unit, while undertaking secondary heat exchange work.

[0023] In a preferred embodiment of the present embodiment, the first heat exchange unit is provided with a first compression zone and a first heat exchange zone, wherein: the air inlet end of the first compression zone is arranged at the air inlet end of the first heat exchange unit; the air outlet end of the first compression zone corresponds to the air inlet end of the first heat exchange zone; the air outlet end of the first heat exchange zone is arranged at the air outlet end of the first heat exchange unit; and the turbulence port 51 is arranged between the air outlet end of the first compression zone and the air inlet end of the first heat exchange zone. After entering the first compression zone, the gas is compressed, and the gas flow rate increases. After the speeded-up gas leaves the first compression zone, a part of it enters the second heat exchange unit through the turbulence port 51 to disturb the gas inside the second heat exchange unit, and another part of the speeded-up gas enters the first heat exchange zone for heat exchange and then is discharged.

[0024] In a preferred embodiment of the present embodiment, the first compression zone is provided with a first air pressure plate 1, and the first heat exchange zone is provided with a first fin group 2, wherein: the first air pressure plate 1 is arranged at the top of the first compression zone; and the thickness dimension of the first air pressure plate 1 gradually increases in the gas flow direction. Since the first air pressure plate 1 is arranged at the top of the first compression zone and gradually thickens in the downstream direction, a slope surface inclined to the downstream is formed, so that the speeded-up gas flowing through the slope surface flows obliquely downward toward the turbulence port 51, so as to make more gas enter the second heat exchange unit as much as possible, thereby improving the turbulence effect.

[0025] In one preferred embodiment of the present application, the first fin group 2 is rectangular fin. Rectangular fin has less resistance to gas, and is suitable for heat exchange of gas with less flow rate in the first heat exchange unit.

[0026] In one preferred embodiment of the present application, the second heat exchange unit is provided with a second compression area and a second heat exchange area, wherein: the air inlet end of the second compression area is arranged at the air inlet end of the second heat exchange unit; the air outlet end of the second compression area corresponds to the air inlet end of the second heat exchange area; the air outlet end of the second heat exchange area is arranged at the air outlet end of the second heat exchange unit; and the turbulence port 51 is arranged between the air outlet end of the second compression area and the air inlet end of the second heat exchange area. The gas enters the second compression area and is compressed to increase the speed, and then flows to the second heat exchange area. The gas meets the gas from the first heat exchange unit entering the turbulence port 51 before entering the second heat exchange area. Since the flow direction, flow rate and pressure of the two gas streams are different, turbulence occurs. The turbulence changes the flow direction of the original gas, and the gas after the turbulence can be uniformly heated and heated for a longer time, so that the heat exchange efficiency is effectively improved.

[0027] In one preferred embodiment of the present application, the bottom of the second compression area is provided with a second air pressing plate 3, the second air pressing plate 3 is provided with a pressurizing area 31 and a flow stabilizing area 32, and the second air pressing plate 3 is arranged at the air inlet end of the second compression area. The pressurizing area 31 and the flow stabilizing area 32 are sequentially connected in the gas flow direction. The thickness of the second air pressing plate 3 in the pressurizing area 31 gradually increases in the gas flow direction. The second air pressing plate 3 in the flow stabilizing area 32 is parallel to the gas flow direction. The pressurizing area 31 of the second air pressing plate 3 compresses the gas to increase the speed, and the flow stabilizing area 32 stabilizes the flow direction of the gas in the previous stage, so that the gas can be aligned with the second heat exchange area in the subsequent stage, and the gas from the turbulence port 51 can be mixed and disturbed to ensure that the heat exchange efficiency in the subsequent stage remains stable.

[0028] In one preferred embodiment of the present application, the pressurizing area 31 is provided with heat dissipation fins 33 arranged in the gas flow direction. The heat dissipation fins 33 can undertake part of the heat exchange work, and improve the heat exchange efficiency of the overall heat exchange structure.

[0029] In one preferred embodiment of the present application, the second heat exchange area is provided with a second fin group 4, and the second fin group 4 is corrugated fin. The corrugated fin has greater resistance to gas, better heat exchange effect, and is suitable for heat exchange of gas with greater flow rate in the second heat exchange unit.

[0030] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

[0031] It is to be understood that the application is not limited to the precise structures hereinabove described and shown in the drawings, for purposes of illustration and education only, and that modifications and changes can be made therein without departing from the scope thereof. The only limitations being the scope of the appended claims.

Claims

1. A plate-fin heat exchanger structure with high heat exchange efficiency, characterized in that, The heat exchange device comprises a first heat exchange unit, a second heat exchange unit and a partition plate, and the partition plate is provided with a turbulence port. The first heat exchange unit is stacked above the second heat exchange unit. The air inlet end of the first heat exchange unit is arranged on the same side as the air inlet end of the second heat exchange unit. The air outlet end of the first heat exchange unit is arranged on the same side as the air outlet end of the second heat exchange unit. The partition plate is arranged between the first heat exchange unit and the second heat exchange unit. The turbulence port is in communication with the first heat exchange unit and the second heat exchange unit. The first heat exchange unit is configured to disturb the flow of the second heat exchange unit through the turbulence port.

2. The plate-fin heat exchange structure according to claim 1, wherein The first heat exchange unit is provided with a first compression zone and a first heat exchange zone. The air inlet end of the first compression zone is arranged at the air inlet end of the first heat exchange unit. The air outlet end of the first compression zone corresponds to the air inlet end of the first heat exchange zone. The air outlet end of the first heat exchange zone is arranged at the air outlet end of the first heat exchange unit. The turbulence port is arranged between the air outlet end of the first compression zone and the air inlet end of the first heat exchange zone.

3. The plate-fin heat exchange structure according to claim 2, wherein The first compression zone is provided with a first air compression plate, and the first heat exchange zone is provided with a first fin group. The first air compression plate is arranged at the top of the first compression zone. The thickness of the first air compression plate gradually increases in the direction of gas flow.

4. The plate-fin heat exchange structure according to claim 3, wherein The first fin group is a rectangular fin.

5. The plate-fin heat exchange structure according to claim 1, wherein The second heat exchange unit is provided with a second compression zone and a second heat exchange zone. The air inlet end of the second compression zone is arranged at the air inlet end of the second heat exchange unit. The air outlet end of the second compression zone corresponds to the air inlet end of the second heat exchange zone. The air outlet end of the second heat exchange zone is arranged at the air outlet end of the second heat exchange unit. The turbulence port is arranged between the air outlet end of the second compression zone and the air inlet end of the second heat exchange zone.

6. The plate-fin heat exchange structure according to claim 5, wherein The bottom of the second compression zone is provided with a second air compression plate, and the second air compression plate is provided with a pressure boosting zone and a flow stabilizing zone. The second air compression plate is arranged at the air inlet end of the second compression zone. The pressure boosting zone and the flow stabilizing zone are sequentially arranged in the direction of gas flow. The thickness of the second air compression plate located in the pressure boosting zone gradually increases in the direction of gas flow. The second air compression plate located in the flow stabilizing zone is parallel to the direction of gas flow.

7. The plate-fin heat exchange structure according to claim 6, wherein The pressure boosting zone is provided with heat dissipation fins arranged in the direction of gas flow.

8. The plate-fin heat exchange structure according to claim 5, wherein The second heat exchange zone is provided with a second fin group, and the second fin group is a corrugated fin.

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