Seal strip convenient to assemble for heat exchanger

Abstract

The utility model relates to the technical field of heat exchanger sealing strips, and discloses a convenient-to-assemble type heat exchanger sealing strip which comprises a sealing strip body, movable plates are arranged in the sealing strip body, a contact plate is fixedly connected between the movable plates, and a first supporting plate is arranged in the sealing strip body. A two-way screw rod is rotationally installed in the middle of the first supporting plate, a connecting strip is rotationally connected to the side face of the sliding block, a second supporting plate is rotationally connected to the side face of the connecting strip, and a partition plate is installed in the sealing strip body. The two-way screw rod is rotated, the two sliding blocks in the same group get close to each other, the distance between the first supporting plate and the second supporting plate is increased, the contact plate is moved, the movable plate is moved, the first sawtooth face and the second sawtooth face can move relatively, the partition plate is clamped, and at the moment, the movable plate and the contact plate are fixed; the movable plate and the contact plate are fixed through the sawtooth structure, the structure is more stable, looseness is avoided, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger seals, in particular to a seal for an assembled heat exchanger. Background Art

[0002] A plate-fin heat exchanger is a highly efficient heat exchange device. It consists of baffles, fins, and seals. The fins are the core heat exchange element and are typically available in various styles, including straight and serrated fins. Baffles divide the fins into different fluid channels, while seals seal the channels to prevent leakage. Two fluids at different temperatures flow through adjacent channels, transferring heat through the fins. The large surface area and high heat transfer coefficient of the fins enable efficient heat exchange. They offer advantages such as high heat transfer efficiency, compact structure, and strong adaptability.

[0003] For example, the Chinese patent publication number is CN221376413U, which belongs to the technical field of heat exchanger seals. Specifically, it is a seal for assembled heat exchangers, which includes a seal body and an elastic pad. The bottom of the seal body is symmetrically provided with slots, and buffer grooves are symmetrically provided on both sides of the slots. The buffer grooves are connected to the slots, and the elastic pads are arranged in the buffer grooves. When assembling the heat exchanger, this application document facilitates the connection and positioning of the partition and the seal before welding, increases the connection stability, facilitates subsequent welding work, prevents deviations during welding, and improves the assembly quality of the heat exchanger.

[0004] After using this seal for assembled heat exchangers, it was found that although the seal for assembled heat exchangers can connect and position the partition and the seal before welding, it uses the elastic pad to rebound and drive the pressing strip and the anti-slip strip to clamp the side wall of the partition. This structure is unstable, the elastic force of the elastic pad is limited, and it may become loose, so it is less practical. Utility Model Content

[0005] The purpose of the utility model is to provide a seal strip for an assembled heat exchanger, so as to solve the problem that the elastic pad thereof has limited elastic force and may become loose.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a seal for an assembled heat exchanger, comprising a seal body, a movable plate provided inside the seal body, a contact plate fixedly connected between the movable plates, a first serrated surface provided on the top of the upper movable plate and a second serrated surface provided on the inner side of the seal body, the first serrated surface and the second serrated surface matched with each other, a first support plate provided inside the seal body, a bidirectional screw rotatably installed on the middle part of the first support plate, a slider being threadedly connected to the outer side of the bidirectional screw, a connecting strip being rotatably connected to the side of the slider, a second support plate being rotatably connected to the side of the connecting strip, and a partition being installed inside the seal body.

[0007] Preferably, grooves are provided on both sides of the partition, and the contact plates cooperate with the grooves.

[0008] Preferably, a through slot is provided in the middle of the first support plate, a sliding rod is fixedly connected to the interior of the through slot, the sliding block is slidably connected to the through slot, and the sliding block is slidably connected to the sliding rod.

[0009] Preferably, the first support plate contacts the interior of the seal body, and the second support plate contacts the back surface of the contact plate.

[0010] Preferably, a rotating block is fixedly connected to the front side of the bidirectional screw.

[0011] Preferably, a heat dissipation hole is provided in the middle of the seal body.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model rotates the bidirectional screw, and the two sliders of the same group approach each other, and the distance between the first support plate and the second support plate becomes larger. The contact plate is moved, and the movable plate moves, and the first serrated surface and the second serrated surface move relatively, clamping the partition plate. At this time, the movable plate and the contact plate are fixed. After installation, the bidirectional screw is rotated in the opposite direction, and the two sliders of the same group move away from each other, and the distance between the first support plate and the second support plate becomes smaller. The first support plate, the second support plate and the related internal parts are taken out together and reinserted into the position of the other contact plate. The above operation is repeated. The movable plate and the contact plate are fixed by the serrated structure, the structure is more stable, will not loosen, and the practicality is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0016] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at point B in the middle;

[0017] Figure 4 This is a schematic diagram of the first support plate structure of the utility model;

[0018] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at point C in the middle;

[0019] Figure 6 This is a schematic diagram of the structure of the slider and the connecting bar of the utility model.

[0020] In the figure: 1. Seal body; 101. Heat dissipation hole; 2. Partition; 201. Groove; 3. Moving plate; 301. Contact plate; 4. First support plate; 401. Bidirectional screw; 402. Sliding rod; 403. Sliding block; 404. Connecting strip; 405. Second support plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figure 1-6The utility model provides a technical solution: a seal for an assembled heat exchanger, comprising a seal body 1, the seal body 1 fixes the partition 2, a movable plate 3 is provided inside the seal body 1, each seal body 1 has eight movable plates 3, and contact plates 301 are fixedly connected between the movable plates 3, and each seal body 1 has four contact plates 301. The contact plates 301 and the movable plates 3 are a whole and move together. The top of the upper movable plate 3 and the bottom of the lower movable plate 3 have a first serrated surface, and the inner side of the seal body 1 is fixedly connected to a second serrated surface. The first serrated surface and the second The serrated surfaces cooperate with each other. When the moving plate 3 moves, the first serrated surface and the second serrated surface will move relative to each other. When the moving plate 3 and the contact plate 301 move, they will deform, but will not separate from the seal body 1. The first serrated surface and the second serrated surface will restrict each other. After the moving plate 3 moves, it will not move in the opposite direction. The interior of the seal body 1 is provided with a first support plate 4. The middle part of the first support plate 4 is rotatably mounted with a bidirectional screw 401. The outer side of the bidirectional screw 401 is threadedly connected to a slider 403. The bidirectional screw 401 has three sections. Rotating the bidirectional screw 401 will cause the slider 403 to move. Each section has two The two sliders 403 correspond to the screw rod 401. The two sliders 403 of the same group move closer to or away from each other. The side of the slider 403 is rotated and connected to the connecting bar 404. The slider 403 moves, the connecting bar 404 moves, and the side of the connecting bar 404 is rotated and connected to the second support plate 405. The connecting bar 404 moves, which can make the second support plate 405 move. The first support plate 4, the second support plate 405 and the related internal parts can be removed together and reused. By rotating the bidirectional screw rod 401, the two sliders 403 of the same group move closer to each other, and the first support plate 4 and the second support plate 405 are moved. The distance between them becomes larger, and the contact plate 301 is moved. After installation, the bidirectional screw 401 is rotated in the opposite direction, and the two sliders 403 of the same group move away from each other, and the distance between the first support plate 4 and the second support plate 405 becomes smaller. The first support plate 4, the second support plate 405 and the internal related parts are taken out together and reused. A partition 2 is installed inside the seal body 1, and the partition 2 is put in. The contact plate 301 moves, and the movable plate 3 moves. The movable plate 3 is restricted by the first serrated surface and the second serrated surface and can only move in one direction. The contact plate 301 moves to clamp the partition 2 and perform welding.

[0023] Among them, grooves 201 are opened on both sides of the partition 2, and the contact plate 301 cooperates with the groove 201. The contact plate 301 moves and contacts with the groove 201 of the partition 2 to clamp the partition 2 and prevent it from falling off.

[0024] Among them, a through groove is opened in the middle of the first support plate 4, and a sliding rod 402 is fixedly connected to the inside of the through groove. The slider 403 is slidably connected to the through groove, and the slider 403 is slidably connected to the sliding rod 402. The sliding rod 402 limits the slider 403, so that the slider 403 can only move along the direction of the sliding rod 402 and cannot be flipped.

[0025] Among them, the first support plate 4 contacts the inside of the seal body 1, and the second support plate 405 contacts the back of the contact plate 301. The first support plate 4, the second support plate 405 and the internal related parts can be removed and reused. Each seal body 1 needs to be used four times. The first support plate 4 and the second support plate 405 are away from each other, and the contact plate 301 and the movable plate 3 can be moved.

[0026] The front side of the bidirectional screw 401 is fixedly connected with a rotating block, and the bidirectional screw 401 can be rotated by rotating the rotating block.

[0027] A heat dissipation hole 101 is provided in the middle of the seal body 1 for heat dissipation.

[0028] Working principle: When in use, put in the partition 2, insert the first support plate 4, the second support plate 405 and related internal parts, rotate the bidirectional screw 401, the two sliders 403 of the same group approach each other, the distance between the first support plate 4 and the second support plate 405 becomes larger, move the contact plate 301, move the movable plate 3, the first serrated surface and the second serrated surface will move relative to each other, clamping the partition 2, at this time the movable plate 3 and the contact plate 301 are fixed, after installation, rotate the bidirectional screw 401 in the opposite direction, the two sliders 403 of the same group move away from each other, the distance between the first support plate 4 and the second support plate 405 becomes smaller, take out the first support plate 4, the second support plate 405 and related internal parts together, and reinsert them into the position of other contact plates 301, repeat the above operation, fix all partitions 2, and finally perform welding operation.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seal for an assembled heat exchanger, comprising a seal body (1), characterized in that: A movable plate (3) is provided inside the seal body (1), and a contact plate (301) is fixedly connected between the movable plates (3). The top of the upper movable plate (3) and the bottom of the lower movable plate (3) have a first serrated surface. The inner side of the seal body (1) is fixedly connected with a second serrated surface, and the first serrated surface and the second serrated surface cooperate with each other. A first support plate (4) is provided inside the seal body (1), and a bidirectional screw (401) is rotatably installed in the middle of the first support plate (4). The outer side of the bidirectional screw (401) is threadedly connected to a slider (403), and the side of the slider (403) is rotatably connected to a connecting strip (404). The side of the connecting strip (404) is rotatably connected to the second support plate (405). A partition plate (2) is installed inside the seal body (1).

2. The seal for an easily assembled heat exchanger according to claim 1, characterized in that: Grooves (201) are provided on both sides of the partition plate (2), and the contact plate (301) is matched with the grooves (201).

3. The seal for an easily assembled heat exchanger according to claim 1, characterized in that: A through slot is provided in the middle of the first support plate (4), a slide bar (402) is fixedly connected to the interior of the through slot, the slider (403) is slidably connected to the through slot, and the slider (403) is slidably connected to the slide bar (402).

4. The seal for an easily assembled heat exchanger according to claim 1, characterized in that: The first support plate (4) contacts the interior of the seal body (1), and the second support plate (405) contacts the back surface of the contact plate (301).

5. The seal for an easily assembled heat exchanger according to claim 1, characterized in that: The front side of the bidirectional screw (401) is fixedly connected with a rotating block.

6. The seal for an easily assembled heat exchanger according to claim 1, characterized in that: A heat dissipation hole (101) is provided in the middle of the seal body (1).

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