A detachable heat exchange unit

By introducing structures such as L-shaped plates, slide rails, and trapezoidal blocks into the heat exchanger, the disassembly and installation process is simplified, solving the problems of cumbersome operation and high maintenance costs in the existing technology, and realizing fast, tool-free maintenance operations.

CN224365406UActive Publication Date: 2026-06-16CHENGDU SHIHAO ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU SHIHAO ELECTRIC APPLIANCE CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing heat exchangers are cumbersome to disassemble and install, requiring the loosening of nuts one by one and the use of tools, which affects maintenance efficiency. Furthermore, the threads may wear after repeated disassembly and assembly, resulting in high maintenance costs.

Method used

It adopts a structure consisting of an L-shaped plate, slide rail, connecting block, trapezoidal block and screw rod. By manually rotating the screw rod, the connecting block and trapezoidal block are driven to tighten or loosen the movable clamping plate, simplifying the disassembly process and requiring no additional tools.

Benefits of technology

It enables tool-free quick disassembly and installation, reduces maintenance complexity, reduces thread wear, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224365406U_ABST
    Figure CN224365406U_ABST
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Abstract

The utility model relates to heat exchanger technical field proposes a detachable heat exchange unit, include: heat exchanger body, fixed mounting L shape board on the stand of heat exchanger body, fixed mounting slide rail on one side of L shape board, sliding connection connecting block on slide rail, fixed mounting first trapezoidal block on one side of connecting block, a plurality of second trapezoidal block are installed on heat exchanger body, through manual rotation screw rod one end's hand wheel, thereby can make screw rod rotate, after rotating screw rod again under the cooperation of slide rail, stably drive the connecting block of screw connection on it, then connecting block synchronous drive first trapezoidal block extrude or far away from second trapezoidal block, thereby make the movable compression plate on heat exchanger body can be compressed or loosen, and further make the device simple to disassemble, do not need to loosen and tighten with screw nut one by one, simultaneously do not need additional tool, bare hands can operate, reduce maintenance complexity.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a detachable heat exchange unit. Background Technology

[0002] A heat exchanger, also known as a heat exchange device or heat exchange equipment, is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to their operating process, they can be divided into three main categories: indirect-flow type, mixing type, and regenerative type. According to the compactness of their surfaces, they can be divided into two categories: compact type and non-compact type.

[0003] Chinese utility model CN222703878U discloses a detachable plate heat exchanger, relating to the field of heat exchanger technology. It includes a fixed pressure plate, a movable pressure plate, and heat exchange plates. The heat exchange plates are disposed between the fixed and movable pressure plates, and multiple sets of heat exchange plates are provided. The fixed pressure plate has fluid inlets and outlets, and each set of heat exchange plates has a corresponding opening. Sealing strips are provided on the edge of the heat exchange plates near the movable pressure plate and around the openings. This utility model adds a metal gasket. By rearranging the order of the heat exchange plates, with the sealing strips facing the movable pressure plate, and replacing the last heat exchange plate with a standard opening, the metal gasket can isolate the medium from contact with the movable pressure plate. Furthermore, under negative pressure operation, the last heat exchange plate will not deform, thus enabling normal operation of the heat exchanger under negative pressure conditions.

[0004] However, the following problems were found in the implementation of the relevant technology: the operation is difficult when disassembly, maintenance, cleaning or replacement of parts is required. Each disassembly and installation requires loosening and tightening the nuts one by one, and tools such as wrenches are also required. The operation is cumbersome and affects the maintenance efficiency. Secondly, the maintenance cost is high. After multiple disassembly and assembly, the threads may wear out and the bolt rods and nuts need to be replaced regularly. Utility Model Content

[0005] This utility model proposes a detachable heat exchange unit, which solves the problem in related technologies that each disassembly and installation requires loosening and tightening of nuts one by one, and also requires the assistance of tools such as wrenches, which is cumbersome and affects maintenance efficiency. In addition, the maintenance cost is high, and the threads may wear after repeated disassembly and assembly, requiring regular replacement of bolts and nuts.

[0006] The technical solution of this utility model is as follows: A detachable heat exchange unit, comprising:

[0007] Heat exchanger body;

[0008] An L-shaped plate fixedly installed on the column of the heat exchanger body;

[0009] A slide rail is fixedly installed on one side of the L-shaped plate;

[0010] A connecting block that is slidably connected to the slide rail;

[0011] A first trapezoidal block is fixedly installed on one side of the connecting block;

[0012] Multiple second trapezoidal blocks are installed on the heat exchanger body, and the multiple second trapezoidal blocks are fixedly installed on the movable clamping plate of the heat exchanger body from top to bottom, with the first trapezoidal block in contact with the second trapezoidal block located in the middle;

[0013] Rotate the lead screw mounted on the L-shaped plate, and the connecting block is threaded onto the lead screw;

[0014] Two connecting frames are symmetrically arranged on the upper and lower side walls of the first trapezoidal block;

[0015] A third trapezoidal block is fixedly installed on the connecting frame, and the third trapezoidal block is in contact with the second trapezoidal block.

[0016] Preferably, a positioning ring is fixedly installed on both the upper and lower guide beams of the heat exchanger body, and the transverse section of the L-shaped plate is fixedly connected to the positioning ring.

[0017] Preferably, a square block is fixedly installed on one side of the third trapezoidal block, and a limiting rod is movably inserted into the square block, with one end of the limiting rod being fixedly connected to the positioning ring;

[0018] A blocking mechanism is provided on the outer wall of the limiting rod, and the blocking mechanism is located on the front side of the square block.

[0019] Preferably, the blocking mechanism includes a positioning ring sleeved on the outer wall of the limiting rod, and a hand-tightening screw is threaded onto the positioning ring, with the screw end of the hand-tightening screw in contact with the limiting rod.

[0020] Preferably, the connecting frame includes an I-beam fixing frame fixedly installed on the first trapezoidal block, and the third trapezoidal block is fixedly installed on the I-beam fixing frame. Multiple reinforcing ribs are fixedly installed on both sides of the I-beam fixing frame, and the reinforcing ribs are located in the grooves on the I-beam fixing frame.

[0021] Preferably, both the I-beam fixing frame and the reinforcing rib are made of metal.

[0022] Preferably, a strip groove is provided on one side of the first trapezoidal block, the second trapezoidal block and the third trapezoidal block, and a roller is provided in the strip groove on the first trapezoidal block and the third trapezoidal block, and the roller is rotatably mounted on the first trapezoidal block and the third trapezoidal block;

[0023] The outer walls of the rollers on the first trapezoidal block and the third trapezoidal block pass through the strip groove on the second trapezoidal block and come into contact with the second trapezoidal block.

[0024] Preferably, the first trapezoidal block, the second trapezoidal block, and the third trapezoidal block are all right-angled trapezoids.

[0025] The working principle and beneficial effects of this utility model are as follows:

[0026] By manually turning the handwheel at one end of the lead screw, the lead screw can be rotated. Then, with the cooperation of the slide rail, the rotating lead screw stably drives the threaded connecting block on it. Then, the connecting block synchronously drives the first trapezoidal block to squeeze or move away from the second trapezoidal block, so that the movable clamping plate on the heat exchanger body can be pressed or loosened. This makes the device easy to disassemble, eliminating the need to loosen and tighten each nut individually. At the same time, no additional tools are required, and it can be operated by hand, reducing maintenance complexity. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0029] Figure 2 This is a schematic diagram of the rear view structure proposed in this utility model;

[0030] Figure 3 A structural schematic diagram of the L-shaped plate is provided for this utility model;

[0031] Figure 4 A structural schematic diagram of the connecting frame is provided for this utility model;

[0032] Figure 5 A cross-sectional structural diagram of the first trapezoidal block is provided for this utility model.

[0033] In the diagram: 1. Heat exchanger body; 2. L-shaped plate; 3. Slide rail; 4. Connecting block; 5. First trapezoidal block; 6. Second trapezoidal block; 7. Lead screw;

[0034] 8. Connecting frame; 81. I-beam fixing frame; 82. Reinforcing rib;

[0035] 9. Third trapezoidal block; 10. Limiting rod; 11. Positioning ring; 12. Hand-tightening screw; 13. Strip groove; 14. Roller. Detailed Implementation

[0036] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0037] Example 1

[0038] Please see Figure 1 - Figure 5 A detachable heat exchange unit, comprising:

[0039] Heat exchanger body 1;

[0040] L-shaped plate 2 is fixedly installed on the column of the heat exchanger body 1;

[0041] The slide rail 3 is fixedly installed on one side of the L-shaped plate 2;

[0042] The connecting block 4 is slidably connected to the slide rail 3;

[0043] The first trapezoidal block 5 is fixedly installed on one side of the connecting block 4;

[0044] Multiple second trapezoidal blocks 6 are installed on the heat exchanger body 1, and the multiple second trapezoidal blocks 6 are fixedly installed on the movable clamping plate of the heat exchanger body 1 from top to bottom, with the first trapezoidal block 5 in contact with the second trapezoidal block 6 located in the middle;

[0045] Rotate the lead screw 7 mounted on the L-shaped plate 2, and the connecting block 4 is threaded onto the lead screw 7;

[0046] Two connecting frames 8 are symmetrically arranged on the upper and lower side walls of the first trapezoidal block 5;

[0047] The third trapezoidal block 9 is fixedly installed on the connecting frame 8, and the third trapezoidal block 9 is in contact with the second trapezoidal block 6. The shapes of the first trapezoidal block 5, the second trapezoidal block 6 and the third trapezoidal block 9 are all right trapezoids.

[0048] This utility model provides a detachable heat exchange unit. In use, the handwheel at one end of the lead screw 7 is manually turned, causing the lead screw 7, which is rotatably mounted on the L-shaped plate 2, to rotate. The rotating lead screw 7 then drives the connecting block 4 threaded on its outer wall, allowing the connecting block 4 to move stably under the action of the slide rail 3. The moving connecting block 4 then synchronously drives the first trapezoidal block 5, which in turn drives the third trapezoidal block 9 through the connecting frame 8. This allows the first trapezoidal block 5 and the third trapezoidal block 9 to press against or move away from the second trapezoidal block 6, thereby allowing the movable clamping plate on the heat exchanger body 1 to be pressed or released. This makes the device easy to disassemble, eliminating the need to loosen and tighten each nut individually, and requires no additional tools, allowing for operation by hand and reducing maintenance complexity.

[0049] Furthermore, a positioning ring 11 is fixedly installed on both the upper and lower guide beams of the heat exchanger body 1, and the transverse section of the L-shaped plate 2 is fixedly connected to the positioning ring 11.

[0050] Specifically, the positioning ring 11 ensures the stability of the L-shaped plate 2.

[0051] Furthermore, the connecting frame 8 includes an I-beam fixing frame 81 fixedly installed on the first trapezoidal block 5, and a third trapezoidal block 9 fixedly installed on the I-beam fixing frame 81. Multiple reinforcing ribs 82 are fixedly installed on both sides of the I-beam fixing frame 81, and the reinforcing ribs 82 are located in the grooves on the I-beam fixing frame 81. Both the I-beam fixing frame 81 and the reinforcing ribs 82 are made of metal.

[0052] Specifically, the I-beam fixing bracket 81 enables the third trapezoidal block 9 to connect with the first trapezoidal block 5, so that while the first trapezoidal block 5 moves, the third trapezoidal block 9 can also move and exert low pressure on the other second trapezoidal blocks 6. Then, under the action of the reinforcing rib 82, the strength of the I-beam fixing bracket 81 can be improved, making the I-beam fixing bracket 81 less prone to bending during use.

[0053] Furthermore, a strip groove 13 is provided on one side of the first trapezoidal block 5, the second trapezoidal block 6 and the third trapezoidal block 9. A roller 14 is provided in the strip groove 13 on the first trapezoidal block 5 and the third trapezoidal block 9, and the roller 14 is rotatably mounted on the first trapezoidal block 5 and the third trapezoidal block 9.

[0054] The outer walls of the rollers 14 on the first trapezoidal block 5 and the third trapezoidal block 9 pass through the strip groove 13 on the second trapezoidal block 6 and come into contact with the second trapezoidal block 6.

[0055] Specifically, the rollers 14 inside the groove 13 reduce the friction between the first trapezoidal block 5, the third trapezoidal block 9, and the second trapezoidal block 6, thereby making their movement smoother.

[0056] Example 2

[0057] Based on Embodiment 1, in this embodiment: a square block is fixedly installed on one side of the third trapezoidal block 9, a limiting rod 10 is movably inserted into the square block, and one end of the limiting rod 10 is fixedly connected to the positioning ring 11. A blocking mechanism is provided on the outer wall of the limiting rod 10, and the blocking mechanism is located on the front side of the square block. The blocking mechanism includes a positioning ring 11 sleeved on the outer wall of the limiting rod 10, a hand screw 12 is threadedly connected to the positioning ring 11, and the screw end of the hand screw 12 is in contact with the limiting rod 10.

[0058] The technical solution provided in this embodiment is as follows: the positioning ring 11 is manually placed on the outer wall of the limiting rod 10, and then the hand screw 12 is manually rotated and the screw end of the hand screw 12 abuts against the limiting rod 10, thereby locking the adjusted third trapezoidal block 9 and the first trapezoidal block 5, thereby further improving the stability of the first trapezoidal block 5 and the third trapezoidal block 9.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A detachable heat exchange unit, characterized in that, include: Heat exchanger body (1); An L-shaped plate (2) is fixedly installed on the column of the heat exchanger body (1); A slide rail (3) is fixedly installed on one side of the L-shaped plate (2); A connecting block (4) is slidably connected to the slide rail (3); A first trapezoidal block (5) is fixedly installed on one side of the connecting block (4); Multiple second trapezoidal blocks (6) are installed on the heat exchanger body (1), and the multiple second trapezoidal blocks (6) are fixedly installed on the movable clamping plate of the heat exchanger body (1) from top to bottom, and the first trapezoidal block (5) is in contact with the second trapezoidal block (6) located in the middle; Rotate the lead screw (7) mounted on the L-shaped plate (2), and the connecting block (4) is threaded onto the lead screw (7); Two connecting frames (8) are symmetrically arranged on the upper and lower side walls of the first trapezoidal block (5). A third trapezoidal block (9) is fixedly installed on the connecting frame (8), and the third trapezoidal block (9) is in contact with the second trapezoidal block (6).

2. The detachable heat exchange unit according to claim 1, characterized in that: A positioning ring (11) is fixedly installed on the upper and lower guide beams of the heat exchanger body (1), and the transverse section of the L-shaped plate (2) is fixedly connected to the positioning ring (11).

3. A detachable heat exchange unit according to claim 2, characterized in that: A square block is fixedly installed on one side of the third trapezoidal block (9), and a limiting rod (10) is movably inserted into the square block, and one end of the limiting rod (10) is fixedly connected to the positioning ring (11). A blocking mechanism is provided on the outer wall of the limiting rod (10), and the blocking mechanism is located on the front side of the square block.

4. A detachable heat exchange unit according to claim 3, characterized in that: The blocking mechanism includes a positioning ring (11) sleeved on the outer wall of the limiting rod (10), and a hand screw (12) is threaded onto the positioning ring (11), and the screw end of the hand screw (12) is in contact with the limiting rod (10).

5. A detachable heat exchange unit according to claim 1, characterized in that: The connecting frame (8) includes an I-beam fixing frame (81) fixedly installed on the first trapezoidal block (5), and the third trapezoidal block (9) is fixedly installed on the I-beam fixing frame (81). Multiple reinforcing ribs (82) are fixedly installed on both sides of the I-beam fixing frame (81), and the reinforcing ribs (82) are located in the grooves on the I-beam fixing frame (81).

6. A detachable heat exchange unit according to claim 5, characterized in that: Both the I-beam fixing frame (81) and the reinforcing rib (82) are made of metal.

7. A detachable heat exchange unit according to claim 1, characterized in that: A strip groove (13) is provided on one side of the first trapezoidal block (5), the second trapezoidal block (6) and the third trapezoidal block (9). A roller (14) is provided in the strip groove (13) on the first trapezoidal block (5) and the third trapezoidal block (9), and the roller (14) is rotatably mounted on the first trapezoidal block (5) and the third trapezoidal block (9). The outer walls of the rollers (14) on the first trapezoidal block (5) and the third trapezoidal block (9) pass through the strip groove (13) on the second trapezoidal block (6) and come into contact with the second trapezoidal block (6).

8. A detachable heat exchange unit according to claim 1, characterized in that: The first trapezoidal block (5), the second trapezoidal block (6), and the third trapezoidal block (9) are all right-angled trapezoids.

Citation Information

Patent Citations

  • A detachable plate heat exchanger

    CN222703878U