Large plate heat exchanger dismounting and moving tool

By designing a disassembly and relocation fixture for large plate heat exchangers and adopting a multi-point clamping structure, the problem of heat exchange plate deformation caused by traditional disassembly methods is solved, and the stability and service life of the disassembly process are guaranteed.

CN224373919UActive Publication Date: 2026-06-19NANNING ONWAY ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANNING ONWAY ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-05-21
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

During the disassembly of large heat exchangers, the traditional two-point lifting method causes localized stress concentration on the heat exchange plates, resulting in irreversible deformations such as surface dents and warping, which affect heat transfer performance and service life.

Method used

A large plate heat exchanger disassembly and relocation fixture was designed, including a fixed frame, a mounting frame, a moving frame, and a connecting frame. Through a multi-point clamping structure, the stability of the heat exchange plates during disassembly is ensured, and deformation caused by local stress is avoided.

Benefits of technology

This effectively prevents surface dents and warping of the heat exchange fins during disassembly, ensuring the stability of heat transfer performance and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a large -scale plate heat exchanger dismantles removal frock relates to dismantling frock technical field. Including: the fixed frame is equipped with the heat exchange sheet in the fixed frame, the heat exchange sheet is a plurality of, the support structure is set up in the fixed frame outside for the heat exchange sheet is dismantled, the support structure includes the mounting bracket, removes the frame and is connected to the frame, the mounting bracket sets up in the fixed frame outside for the support that removes the frame provides. The utility model discloses the setting of mounting bracket, removes the frame and is connected to the frame, has realized through the cooperation of connecting rod, rotary cover, first connecting block, second connecting block, telescopic link, sliding rod, sliding board, swing rod, adjusting rod, fixed plate and pressboard, thereby carries out multi -point clamping to the heat exchange sheet in the process of dismounting, avoids the local stress and can cause the recess, warping etc. Irreversible deformation of heat exchange sheet surface, ensures the heat transfer performance and the service life of heat exchange plate.
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Description

Technical Field

[0001] This utility model relates to the field of disassembly tooling technology, specifically to a disassembly and movement tooling for a large plate heat exchanger. Background Technology

[0002] A plate heat exchanger is a high-efficiency heat exchange device consisting of a series of corrugated metal plates stacked together. It mainly consists of two parts: a frame and plates. Thin rectangular channels are formed between the plates, and heat exchange is carried out through the plates. The plates are the core components of the plate heat exchanger and are usually made of metal materials such as stainless steel and titanium alloy. They have certain corrugated shapes, such as herringbone, horizontal straight corrugated, and nodule-shaped.

[0003] In the disassembly and cleaning of large heat exchangers, the disassembly of heat exchange plates is a critical step. Currently, the industry generally uses the traditional two-point lifting method to disassemble heat exchange plates. Due to the large size and thinness of large heat exchange plates, their own weight will be highly concentrated in the area near the lifting point during the two-point lifting process. This localized stress will cause irreversible deformation such as dents and warping on the surface of the heat exchange plate, affecting the heat transfer performance and service life of the heat exchange plate. Therefore, a disassembly and moving tooling for large plate heat exchangers is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that local stress can cause irreversible deformation such as dents and warping on the surface of the heat exchange plate, which affects the heat transfer performance and service life of the heat exchange plate. This utility model provides a disassembly and relocation tooling for large plate heat exchangers.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A large plate heat exchanger disassembly and relocation fixture includes:

[0007] A mounting frame, wherein multiple heat exchange fins are provided inside the mounting frame;

[0008] A support structure, located outside the fixed frame, is used for disassembling the heat exchanger. The support structure includes an mounting frame, a movable frame, and a connecting frame. The mounting frame is located outside the fixed frame and is used to support the movable frame. The movable frame is located outside the mounting frame and is used to move the movable frame. The connecting frame is located outside the movable frame and is used to clamp the heat exchanger. The mounting frame, movable frame, and connecting frame work together to move the heat exchanger.

[0009] Furthermore, the mounting frame includes connecting rods, and there are multiple connecting rods distributed on the outside of the fixed frame. A first connecting block and a second connecting block are respectively provided on the outside of the connecting rods. A telescopic rod and a baffle are respectively provided on the opposite side of the first connecting block and the second connecting block. A rotating sleeve is threadedly connected between the telescopic rods, and the second connecting block slides on the outside of the connecting rod.

[0010] Furthermore, the second connecting block is also provided with a pin inside, and one end of the pin abuts against the connecting rod.

[0011] Furthermore, the movable frame includes a sliding rod, which is elongated and has sliding plates at both ends. The sliding plates have connecting grooves inside, and the connecting rod slides inside the connecting grooves.

[0012] Furthermore, the connecting frame includes a fixing block, there are multiple fixing blocks, and the fixing blocks are connected to the sliding rod. The fixing block is provided with gears inside, there are multiple gears, and the gears mesh with each other. A swing rod, an adjusting rod and a fixing plate are arranged in sequence outside the gears, and the adjusting rod slides inside the swing rod. A control rod is provided inside the fixing plate, and a pressure plate is provided at one end of the control rod.

[0013] Furthermore, a guide groove is provided on the outer side of the swing rod, and a limiting member is slidably connected inside the guide groove, and the limiting member is connected to the adjusting rod.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model, through the arrangement of the mounting frame, the movable frame, and the connecting frame, achieves multi-point clamping of the heat exchange plates during disassembly by cooperating with the connecting rod, the rotating sleeve, the first connecting block, the second connecting block, the telescopic rod, the sliding rod, the sliding plate, the swing rod, the adjusting rod, the fixing plate, and the pressure plate. This avoids irreversible deformation such as dents and warping on the surface of the heat exchange plates caused by localized stress, thus ensuring the heat transfer performance and service life of the heat exchange plates. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an enlarged view of the mounting bracket of this utility model;

[0018] Figure 3 This is an enlarged view of the connecting rod of this utility model;

[0019] Figure 4 This is an enlarged view of the sliding rod of this utility model;

[0020] Figure 5 This is an enlarged view of the connecting frame of this utility model;

[0021] Reference numerals: 1. Fixed frame; 101. Heat exchange fin; 2. Mounting frame; 201. Connecting rod; 202. Rotating sleeve; 203. First connecting block; 204. Second connecting block; 205. Pin; 206. Telescopic rod; 207. Baffle; 3. Moving frame; 301. Sliding rod; 302. Sliding plate; 303. Connecting groove; 304. Fixed block; 4. Connecting frame; 401. Swing rod; 402. Gear; 403. Adjusting rod; 404. Limiting component; 405. Guide groove; 406. Fixed plate; 407. Pressure plate; 408. Control rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1 to 5As shown, a disassembly and relocation fixture for a large plate heat exchanger includes: a fixed frame 1, with multiple heat exchange plates 101 inside; and a support structure disposed outside the fixed frame 1 for disassembling the heat exchange plates 101. The support structure includes a mounting frame 2, a movable frame 3, and a connecting frame 4. The mounting frame 2 is disposed outside the fixed frame 1 to provide support for the movable frame 3. The movable frame 3 is disposed outside the mounting frame 2 to move the movable frame 3. The connecting frame 4 is disposed outside the movable frame 3 to clamp and secure the heat exchange plates 101. Mounting bracket 2 and movable bracket 3, together with connecting bracket 4, drive the heat exchange plate 101 to move in position. Specifically, when the heat exchanger needs to be disassembled, the movable bracket 3 and connecting bracket 4 are first installed on the outside of the fixed bracket 1 through mounting bracket 2. Then, the heat exchange plate is clamped and moved by the cooperation of mounting bracket 2 and movable bracket 3 to prevent the heat exchange plate from being deformed by force during the movement. The fixed bracket 1 can provide support for the heat exchange plate 101 during use to ensure the stability of the heat exchange plate 101 during use. The fixed bracket 1 and the heat exchange plate 101 are both existing technologies and will not be explained in detail here.

[0028] like Figures 1 to 5 As shown, the mounting bracket 2 includes multiple connecting rods 201, which are distributed on the outside of the fixed bracket 1. A first connecting block 203 and a second connecting block 204 are respectively provided on the outside of the connecting rods 201. A telescopic rod 206 and a baffle 207 are respectively provided on the opposite side of the first connecting block 203 and the second connecting block 204. A rotating sleeve 202 is threaded between the telescopic rods 206, and the second connecting block 204 slides on the outside of the connecting rods 201. Specifically, during use, the connecting rods 201 are mounted on the fixed bracket 1 through the cooperation of the first connecting block 203, the second connecting block 204, the rotating sleeve 202, and the telescopic rod 206. On the outside, to ensure the stability of the position of the connecting rod 201 during use, during the installation of the connecting rod 201, the baffle 207 further limits the first connecting block 203 and the second connecting block 204 to ensure the stability of the first connecting block 203 and the second connecting block 204 in the connection with the fixed frame 1. The rotating sleeve 202 is provided with left-hand thread and right-hand thread respectively. The cooperation of the left-hand thread and the right-hand thread controls the telescopic rods 206 at both ends to move in opposite directions, thereby realizing the control of the distance between the connecting rods 201. There are no restrictions on the shape of the rotating sleeve 202. It can be cylindrical, square column or hexagonal prism, etc.

[0029] like Figures 1 to 5As shown, the second connecting block 204 is also provided with a pin 205 inside, and one end of the pin 205 abuts against the connecting rod 201. Specifically, after the position of the second connecting block 204 is adjusted, the pin 205 contacts the connecting rod 201 to limit the position of the second connecting block 204, ensuring the stability of the connecting rod 201 during use. The pin 205 and the second connecting block 204 can be connected by threads or adjusting grooves, thereby controlling the contact and separation of the pin 205 and the connecting rod 201 during use.

[0030] like Figures 1 to 5 As shown, the movable frame 3 includes a sliding rod 301, which is elongated. Sliding plates 302 are provided at both ends of the sliding rod 301. Connecting grooves 303 are formed inside the sliding plates 302, and the connecting rod 201 slides within the connecting grooves 303. Specifically, during use, the sliding rod 301 is guided in its direction of movement through the cooperation of the connecting grooves 303 and the connecting rod 201, ensuring the stability of the sliding rod 301 during movement. The sliding plates 302 and the sliding rod 301 can be connected by welding or bolts. The length of the sliding rod 301 can be adjusted according to the spacing of the connecting rods 201 to ensure the stability of the sliding rod 301 during movement.

[0031] like Figures 1 to 5 As shown, the connecting frame 4 includes multiple fixing blocks 304, which are connected to the sliding rod 301. Multiple gears 402 are installed inside the fixing blocks 304 and mesh with each other. A swing rod 401, an adjusting rod 403, and a fixing plate 406 are sequentially arranged outside the gears 402. The adjusting rod 403 slides inside the swing rod 401. A control rod 408 is installed inside the fixing plate 406, and a pressure plate 407 is installed at one end of the control rod 408. Specifically, when the heat exchanger 101 needs to be disassembled, the extension length of the adjusting rod 403 is first adjusted according to the size of the heat exchanger 101. Then, the pressure plate 407 is applied through the cooperation of the swing rod 401 and the gears 402. Position control is performed so that the fixed plate 406 and the pressure plate 407 clamp the heat exchange plate 101. Finally, the sliding rod 301 and the connecting rod 201 are used to control the position movement of the heat exchange plate 101. The control rod 408 and the adjusting rod 403 are connected by threads so that the fixed plate 406 can cooperate with the pressure plate 407 to clamp the heat exchange plate 101. The meshing of multiple gears 402 realizes the synchronous swing of the swing rod 401. During the movement of the heat exchange plate 101, the cooperation of multiple fixed plates 406 and pressure plates 407 clamps the heat exchange plate 101 evenly, ensuring that the heat exchange plate 101 can move in parallel and avoiding deformation of the heat exchange plate 101 due to uneven force during the movement.

[0032] like Figures 1 to 5As shown, a guide groove 405 is provided on the outer side of the swing rod 401. A limiting member 404 is slidably connected inside the guide groove 405, and the limiting member 404 is connected to the adjusting rod 403. Specifically, the adjusting rod 403 is limited by the cooperation of the guide groove 405 and the limiting member 404, so as to ensure that the adjusting rod 403 can stably clamp the heat exchange plate 101 during use. The limiting member 404 is a bolt and a nut. The bolt is connected to the adjusting rod 403, and the bolt slides inside the guide groove 405. The adjusting rod 403 is limited by the cooperation of the bolt and the nut.

[0033] like Figures 1 to 5 As shown, the working state of this large plate heat exchanger disassembly and movement fixture is as follows: It includes: a fixed frame 1, which has multiple heat exchange plates 101 inside; a support structure, which is set outside the fixed frame 1 for disassembling the heat exchange plates 101. The support structure includes a mounting frame 2, a moving frame 3, and a connecting frame 4. The mounting frame 2 is set outside the fixed frame 1 to provide support for the moving frame 3. The moving frame 3 is set outside the mounting frame 2 to move the moving frame 3. The connecting frame 4 is set outside the moving frame 3 to clamp the heat exchange plates 101. The mounting frame 2 and the moving frame 3 cooperate with the connecting frame 4 to move the heat exchange plates 101.

[0034] In summary, when disassembling the heat exchanger 101, this utility model first installs the connecting rod 201 on the outside of the fixed frame 1 through the cooperation of the first connecting block 203, the second connecting block 204, the rotating sleeve 202, and the telescopic rod 206. Next, the sliding rod 301 is installed on the outside of the connecting rod 201 through the sliding plate 302. Then, the heat exchanger 101 is clamped in multiple places through the cooperation of the swing rod 401, the adjusting rod 403, the fixed plate 406, and the pressure plate 407. Finally, the sliding rod 301 is controlled to move along the connecting rod 201 to ensure that the heat exchanger 101 moves smoothly. Stability during operation; This utility model, through the arrangement of mounting frame 2, moving frame 3 and connecting frame 4, achieves multi-point clamping of heat exchange plate 101 during disassembly by cooperating with connecting rod 201, rotating sleeve 202, first connecting block 203, second connecting block 204, telescopic rod 206, sliding rod 301, sliding plate 302, swing rod 401, adjusting rod 403, fixed plate 406 and pressure plate 407, so as to avoid irreversible deformation such as dents and warping on the surface of heat exchange plate 101 caused by local stress, and ensure the heat transfer performance and service life of heat exchange plate.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A disassembly and relocation fixture for a large plate heat exchanger, characterized in that, include: A mounting frame, wherein multiple heat exchange fins are provided inside the mounting frame; A support structure, located outside the fixed frame, is used for disassembling the heat exchanger. The support structure includes an mounting frame, a movable frame, and a connecting frame. The mounting frame is located outside the fixed frame and is used to support the movable frame. The movable frame is located outside the mounting frame and is used to move the movable frame. The connecting frame is located outside the movable frame and is used to clamp the heat exchanger. The mounting frame, movable frame, and connecting frame work together to move the heat exchanger.

2. The disassembly and relocation fixture for a large plate heat exchanger according to claim 1, characterized in that, The mounting bracket includes multiple connecting rods distributed on the outside of the fixed bracket. A first connecting block and a second connecting block are respectively provided on the outside of the connecting rods. A telescopic rod and a baffle are respectively provided on the opposite side of the first connecting block and the second connecting block. A rotating sleeve is threaded between the telescopic rods, and the second connecting block slides on the outside of the connecting rod.

3. The disassembly and relocation fixture for a large plate heat exchanger according to claim 2, characterized in that, The second connecting block is also equipped with a pin, and one end of the pin abuts against the connecting rod.

4. The disassembly and relocation fixture for a large plate heat exchanger according to claim 2, characterized in that, The movable frame includes a sliding rod, which is long and narrow. Both ends of the sliding rod are provided with sliding plates. The sliding plates have connecting grooves inside, and the connecting rod slides inside the connecting grooves.

5. The disassembly and relocation fixture for a large plate heat exchanger according to claim 4, characterized in that, The connecting frame includes a fixed block, and there are multiple fixed blocks. The fixed blocks are connected to the sliding rod. The fixed blocks are equipped with gears inside, and there are multiple gears that mesh with each other. A swing rod, an adjusting rod, and a fixed plate are arranged in sequence outside the gears. The adjusting rod slides inside the swing rod. A control rod is arranged inside the fixed plate. One end of the control rod is equipped with a pressure plate.

6. The disassembly and relocation fixture for a large plate heat exchanger according to claim 5, characterized in that, The swing rod has a guide groove on its outer side, and a limiting component is slidably connected inside the guide groove. The limiting component is connected to the adjusting rod.