Aluminum plate-fin heat exchanger

Abstract

The utility model provides an aluminum plate-fin heat exchanger, and aims to solve the problem that the existing aluminum plate-fin heat exchanger is difficult to clean thoroughly and maintain daily due to the compact structure and narrow internal channel, the aluminum plate-fin heat exchanger comprises a plurality of heat exchange fins, each heat exchange fin comprises an outer frame, and the outer frame is provided with an inner frame. A top groove is formed in the top of the outer frame, the same guide plate is fixedly installed between the inner walls of the left side and the right side of the top groove, the outer side of the guide plate is slidably sleeved with an inner moving plate, a limiting plate is fixedly installed on one side of the inner moving plate, and a plurality of limiting springs are fixedly installed between the inner moving plate and the inner wall of one side of the top groove. The push handle is pushed upwards, so that the clamping plate is separated from the clamping groove, then the push handle continues to be pushed towards one side, and therefore the inner moving plate is driven to move towards one side, the limiting plate is separated from the limiting groove, the two heat exchange fins are separated in the vertical direction, the whole heat exchanger is conveniently disassembled, and a core body in the heat exchanger is conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an aluminum plate-fin heat exchanger. Background Art

[0002] Aluminum plate-fin heat exchangers are highly efficient and lightweight heat exchange equipment. Made of aluminum alloy, they are characterized by light weight, compact structure, and high heat transfer efficiency. Compared with traditional shell and tube heat exchangers, aluminum plate-fin heat exchangers have the advantages of higher heat transfer coefficient and smaller space occupation, making them suitable for applications that require efficient heat dissipation and have limited space.

[0003] An aluminum plate-fin heat exchanger that is easy to clean, with publication number CN214747468U, includes a heat exchange frame, a support frame fixedly connected to the lower surface of the heat exchange frame, a positioning plate fixedly connected to the inner top wall and inner bottom wall of the heat exchange frame, heat exchange fins and a sealing plate slidably connected to the inner wall of the heat exchange frame, the upper and lower surfaces of the heat exchange fins are provided with positioning grooves that match the positioning plates, and the upper surface of the sealing plate is provided with a fixing groove. The aluminum plate-fin heat exchanger that is easy to clean facilitates the removal and installation of the sealing plate by providing an inner hexagonal rotating rod, an active bevel gear, a driven bevel gear, an adjusting threaded rod, a right-angled trapezoidal fixing block, and a trapezoidal clamping groove. The positioning plate and the positioning groove facilitate the rapid positioning and placement of the heat exchange fins, facilitating the installation of the heat exchange fins, thereby making the entire heat exchanger easy to install and clean.

[0004] Although the above technical solution can split multiple heat exchange fins in the heat exchanger, there are two problems. First, the heat exchange fins are only connected to the support frame through the positioning plate and the positioning groove. The heat exchanger will vibrate during operation, and the positioning plate and the positioning groove will also shake during the vibration, affecting the stability of the heat exchange fin installation. Second, multiple heat exchange fins are all abutted against the same sealing plate, and it is easy for some heat exchange fins to be loosely connected to the sealing plate, affecting the overall sealing. Therefore, we propose an aluminum plate-fin heat exchanger to solve this problem. Utility Model Content

[0005] The purpose of the present invention is to solve the problems raised in the above background technology and to propose an aluminum plate-fin heat exchanger.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An aluminum plate-fin heat exchanger includes multiple heat exchange fins, and the heat exchange fins include an outer frame. A top groove is provided on the top of the outer frame. The same guide plate is fixedly installed between the left and right inner walls of the top groove. The outer sliding sleeve of the guide plate is provided with an inner moving plate. A limiting plate is fixedly installed on one side of the inner moving plate. Multiple limit springs are fixedly installed between the inner moving plate and the inner wall of one side of the top groove. A bottom groove is provided at the bottom of the outer frame. The bottom groove and the top groove are located on the same vertical line. A limiting groove is provided on the inner wall of one side of the bottom groove, and the limiting plate is adapted to the limiting groove.

[0008] Preferably, an external connection hole is provided on the inner wall of one side of the top groove, a vertical groove is provided on one side of the inner moving plate, a push handle is slidably installed in the vertical groove, a plurality of return springs are fixedly connected between the top of the push handle and the top inner wall of the vertical groove, one side of the push handle passes through the external connection hole and extends to the outside of the heat exchange fin, a clamping plate is fixedly installed on the bottom of the push handle, a clamping groove is provided on the bottom inner wall of the external connection hole, and the clamping plate is movably clamped in the clamping groove.

[0009] Preferably, the heat exchange fins also include two heads, which are fixedly mounted on the inner wall of the outer frame. The two heads are symmetrically arranged, and a plurality of cores are connected between the two heads. The cores are composed of heat exchange tubes and a plurality of fins. Two connecting pipes are fixedly mounted on one side of the outer frame, and the connecting pipes are connected to the corresponding heads.

[0010] Preferably, positioning circular grooves are provided at the four corners of the top of the outer frame, and positioning circular rods are fixedly installed at the four corners of the bottom of the outer frame, and the positioning circular rods are adapted to the positioning circular grooves.

[0011] Preferably, a plurality of rivet grooves are provided on the top of the outer frame, and a plurality of rivet plates are fixedly mounted on the bottom of the outer frame, and the rivet plates are adapted to the rivet grooves.

[0012] Preferably, a ring is fixedly connected to the upper part of the inner wall of the outer frame, and the material of the ring is set to flexible graphite. A ring plate is fixedly connected to the lower part of the inner wall of the outer frame, and the material of the ring plate is set to nickel-based alloy.

[0013] The beneficial effects of the utility model are:

[0014] 1. The two heat exchange fins are accurately connected by the cooperation of the positioning round rod and the positioning round groove, the rivet plate and the rivet groove, and the relative displacement of the two heat exchange fins in the horizontal direction is prevented. The relative displacement of the two heat exchange fins in the vertical direction is limited by the cooperation of the limiting plate and the limiting groove. The heat exchange fins are limited and fixed in multiple directions, which improves the stability of the heat exchange fin installation.

[0015] 2. The connection between the heat exchange fins is sealed by the cooperation of the ring plate and the ring ring, so that a sealing structure composed of a ring plate and a ring ring is provided between each adjacent heat exchange fin. Compared with the comparative document in which multiple heat exchange fins share the same sealing plate, the sealing performance of the connection between the heat exchange fins and the support frame is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the aluminum plate-fin heat exchanger proposed in the present invention from a top view;

[0017] Figure 2 This is a schematic cross-sectional view of the aluminum plate-fin heat exchanger proposed in the present invention;

[0018] Figure 3 for Figure 1 A partial enlarged view of part A;

[0019] Figure 4 for Figure 2 A partial enlarged view of part B;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the aluminum plate-fin heat exchanger proposed by the present invention when viewed from above.

[0021] The reference numerals are as follows:

[0022] In the figure: 1. heat exchange fin; 2. outer frame; 3. top groove; 4. guide plate; 5. inner moving plate; 6. limiting plate; 7. limit spring; 8. bottom groove; 9. limit groove; 10. push handle; 11. return spring; 12. head; 13. core; 14. connecting pipe; 15. positioning circular groove; 16. positioning circular rod; 17. rivet groove; 18. rivet plate; 19. ring; 20. ring plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-5The aluminum plate-fin heat exchanger includes a plurality of heat exchange fins 1. The heat exchange fins 1 include an outer frame 2. A top groove 3 is provided on the top of the outer frame 2. The same guide plate 4 is fixedly installed between the inner walls on the left and right sides of the top groove 3. The outer sliding sleeve of the guide plate 4 is provided with an inner moving plate 5. A limiting plate 6 is fixedly installed on one side of the inner moving plate 5. A plurality of limit springs 7 are fixedly installed between the inner moving plate 5 and the inner wall of one side of the top groove 3. A bottom groove 8 is provided at the bottom of the outer frame 2. The bottom groove 8 and the top groove 3 are located on the same vertical line. A limiting groove 9 is provided on the inner wall of one side of the bottom groove 8, and the limiting plate 6 is adapted to the limiting groove 9.

[0025] like Figure 4 As shown, an external connection hole is provided on the inner wall of one side of the top groove 3, a vertical groove is provided on one side of the inner moving plate 5, a push handle 10 is slidably installed in the vertical groove, a plurality of return springs 11 are fixedly connected between the top of the push handle 10 and the top inner wall of the vertical groove, one side of the push handle 10 passes through the external connection hole and extends to the outside of the heat exchange fin 1, a clamping plate 21 is fixedly installed on the bottom of the push handle 10, a clamping groove is provided on the bottom inner wall of the external connection hole, and the clamping plate 21 is movably clamped in the clamping groove.

[0026] It is particularly noted that the top heat exchange fin 1 does not need to be provided with a positioning circular groove 15, a rivet groove 17, a top groove 3 and multiple structures in the top groove 3, and the bottom heat exchange fin 1 does not need to be provided with a positioning circular rod 16, a rivet plate 18 and a bottom groove 8, and the outer side of the top and bottom heat exchange fins 1 is provided with a ring edge, and a plurality of mounting holes are opened on the ring edge to facilitate the positioning and installation of the heat exchanger.

[0027] It should be noted that the inner moving plate 5 is limited by multiple limit springs 7 arranged horizontally. The heat exchanger will generate vibration when working. The vibration may cause the inner moving plate 5 to move, causing the limit plate 6 to disengage from the limit groove 9. The push handle 10 is positioned through the cooperation of the clamping plate 21, the clamping groove and the return spring 11, so that the push handle 10 cannot move laterally, thereby fixing the inner moving plate 5. Since the return spring 11 is arranged vertically, it is difficult for the vibration to cause the limit spring 7 and the return spring 11 to move at the same time, thereby improving the stability of the clamping of the limit plate 6 and the limit groove 9.

[0028] like Figure 1 The heat exchange fin 1 also includes two heads 12, which are fixedly mounted on the inner wall of the outer frame 2. The two heads 12 are symmetrically arranged, and a plurality of cores 13 are connected between the two heads 12. The core 13 is composed of a heat exchange tube and a plurality of fins. Two pipes 14 are fixedly mounted on one side of the outer frame 2, and the pipes 14 are connected to the corresponding heads 12. The core 13 is the core part of the heat exchanger. The fins increase the heat transfer area, thereby improving the heat exchange efficiency. The heads 12 are located at both ends of the core 13, and are used to close the channel formed by the fins and the partition, and connect the inlet and outlet of the fluid.

[0029] like Figure 1 and Figure 5 As shown, positioning circular grooves 15 are provided at the four corners of the top of the outer frame 2 , and positioning circular rods 16 are fixedly installed at the four corners of the bottom of the outer frame 2 , and the positioning circular rods 16 are adapted to the positioning circular grooves 15 .

[0030] A plurality of rivet grooves 17 are formed on the top of the outer frame 2 , and a plurality of rivet plates 18 are fixedly mounted on the bottom of the outer frame 2 , wherein the rivet plates 18 are adapted to the rivet grooves 17 .

[0031] It should be noted that the height of the positioning rod 16 is greater than the height of the rivet plate 18. The cooperation between the positioning rod 16 and the positioning groove 15 facilitates the docking of the two heat exchange fins 1, so that the rivet plate 18 can be accurately inserted into the corresponding rivet groove 17; the cooperation between the rivet plate 18 and the rivet groove 17 increases the mechanical strength of the connection between the two heat exchange fins 1 and prevents the two heat exchange fins 1 from relative displacement in the horizontal direction.

[0032] like Figure 2 and Figure 4 As shown, a ring 19 is fixedly connected to the upper inner wall of the outer frame 2, and the material of the ring 19 is set to flexible graphite. A ring plate 20 is fixedly connected to the lower inner wall of the outer frame 2, and the material of the ring plate 20 is set to nickel-based alloy.

[0033] It should be noted that the ring plate 20 of the upper heat exchange fin 1 abuts against the ring ring 19 of the lower heat exchange fin 1, and the hard ring plate 20 abuts against the flexible ring ring 19 and is slightly sunken into the flexible ring ring 19, forming a tight contact surface, which improves the sealing of the connection between the two heat exchange fins 1, prevents the heat conducted by the core 13 from being lost from the gap in the connection, and maintains an efficient heat exchange process.

[0034] The working principle of the present utility model is: through the cooperation of the positioning round rod 16 and the positioning round groove 15, the rivet plate 18 and the rivet groove 17, the accurate connection of the two heat exchange fins 1 is achieved, and the two heat exchange fins 1 are prevented from relative displacement in the horizontal direction. The cooperation of the limiting plate 6 and the limiting groove 9 limits the relative displacement of the two heat exchange fins 1 in the vertical direction, thereby achieving a stable connection between the two heat exchange fins 1, and by pushing the push handle 10 upward, the card plate is disengaged from the card groove, and then the push handle 10 is continued to be pushed to one side, thereby driving the inner moving plate 5 to move to one side, so that the limiting plate 6 is disengaged from the limiting groove 9, so that the two heat exchange fins 1 can be separated in the vertical direction, thereby facilitating the disassembly of the entire heat exchanger, and then the core 13 inside the heat exchanger can be cleaned.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Aluminum plate-fin heat exchanger, characterized in that: The invention comprises a plurality of heat exchange fins (1), wherein the heat exchange fins (1) comprise an outer frame (2), a top groove (3) is provided on the top of the outer frame (2), a guide plate (4) is fixedly installed between the left and right inner walls of the top groove (3), an outer sliding sleeve of the guide plate (4) is provided with an inner moving plate (5), a limiting plate (6) is fixedly installed on one side of the inner moving plate (5), a plurality of limit springs (7) are fixedly installed between the inner moving plate (5) and the inner wall of one side of the top groove (3), a bottom groove (8) is provided on the bottom of the outer frame (2), the bottom groove (8) and the top groove (3) are located on the same vertical line, a limiting groove (9) is provided on the inner wall of one side of the bottom groove (8), and the limiting plate (6) is adapted to the limiting groove (9).

2. The aluminum plate-fin heat exchanger according to claim 1, characterized in that: An external connection hole is provided on the inner wall of one side of the top groove (3), a vertical groove is provided on one side of the inner moving plate (5), a push handle (10) is slidably installed in the vertical groove, a plurality of return springs (11) are fixedly connected between the top of the push handle (10) and the top inner wall of the vertical groove, one side of the push handle (10) passes through the external connection hole and extends to the outside of the heat exchange fin (1), a clamping plate (21) is fixedly installed on the bottom of the push handle (10), a clamping groove is provided on the bottom inner wall of the external connection hole, and the clamping plate (21) is movably clamped in the clamping groove.

3. The aluminum plate-fin heat exchanger according to claim 1, characterized in that: The heat exchange fin (1) further comprises two heads (12), the heads (12) being fixedly mounted on the inner wall of the outer frame (2), the two heads (12) being symmetrically arranged, a plurality of cores (13) being connected between the two heads (12), the cores (13) being composed of heat exchange tubes and a plurality of fins, and two connecting pipes (14) being fixedly mounted on one side of the outer frame (2), the connecting pipes (14) being connected to the corresponding heads (12).

4. The aluminum plate-fin heat exchanger according to claim 1, characterized in that: The four corners of the top of the outer frame (2) are all provided with positioning circular grooves (15), and the four corners of the bottom of the outer frame (2) are all fixedly installed with positioning circular rods (16), and the positioning circular rods (16) are adapted to the positioning circular grooves (15).

5. The aluminum plate-fin heat exchanger according to claim 1, characterized in that: A plurality of rivet grooves (17) are provided on the top of the outer frame (2), and a plurality of rivet plates (18) are fixedly mounted on the bottom of the outer frame (2), wherein the rivet plates (18) are adapted to the rivet grooves (17).

6. The aluminum plate-fin heat exchanger according to claim 1, characterized in that: A ring (19) is fixedly connected to the upper portion of the inner wall of the outer frame (2), and the material of the ring (19) is set to be flexible graphite. A ring plate (20) is fixedly connected to the lower portion of the inner wall of the outer frame (2), and the material of the ring plate (20) is set to be nickel-based alloy.

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