Plate heat exchanger assembling and disassembling device

Abstract

The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger assembling and disassembling device. Comprising a base, lifting mechanisms, a bolt clamping device and a tightening device, the bolt clamping device and the tightening device are installed on the lifting mechanisms on the two sides respectively, the bolt clamping device is used for fixing a bolt, and the tightening device is used for tightening or loosening the bolt; the bolt clamping device comprises a three-jaw chuck, a chuck supporting frame and a chuck base, the three-jaw chuck is installed on the chuck supporting frame, the chuck supporting frame is installed on the chuck base, the chuck base is installed on the lifting mechanism, and the three-jaw chuck is used for clamping a bolt; the tightening device comprises a tightener and a sleeve, the sleeve is connected with the tightener in a matched mode, the tightener can drive the sleeve to rotate, and the sleeve is used for being matched with a nut. The utility model provides a loading and unloading device for a plate heat exchanger, which is used for solving the problem that the installation screwing force of a clamping nut is inconsistent.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and in particular to a plate heat exchanger loading and unloading device. Background Technology

[0002] Plate heat exchangers are used for heat exchange between hot and cold media. They offer advantages such as high heat transfer coefficient, high heat exchange efficiency, high heat recovery rate, low heat loss, compact and lightweight structure, small footprint, wide application range, and long service life. The overall structure of a plate heat exchanger mainly consists of heat exchange plates, fixed clamping plates, movable clamping plates, and clamping bolts and nuts. Currently, the assembly and disassembly of plate heat exchangers are mostly done manually. During installation, tightening the clamping bolts requires multiple symmetrical tightening and measurements by hand, making the installation process complex and time-consuming. Because the tightening force applied to each clamping nut varies manually, operational errors can easily cause plate deformation, resulting in the plate heat exchanger failing to achieve the expected sealing effect.

[0003] Therefore, existing technologies urgently need to solve the problem of inconsistent tightening force during the installation of clamping nuts. Utility Model Content

[0004] This utility model provides a plate heat exchanger loading and unloading device to solve the problem of inconsistent tightening force of clamping nuts during installation.

[0005] To achieve the above objectives, this utility model provides a plate heat exchanger disassembly device, including a base, a lifting mechanism, a bolt clamping device, and a tightening device. The lifting mechanism is symmetrically arranged on both sides of the base. The bolt clamping device and the tightening device are respectively installed on the lifting mechanism on both sides. The bolt clamping device is used to fix the bolt, and the tightening device is used to tighten or loosen the bolt.

[0006] The bolt clamping device includes a three-jaw chuck, a chuck support frame, and a chuck base. The three-jaw chuck is mounted on the chuck support frame, the chuck support frame is mounted on the chuck base, and the chuck base is mounted on the lifting mechanism. The three-jaw chuck is used to clamp bolts.

[0007] The tightening device includes a tightener and a sleeve. The sleeve is connected to the tightener and the tightener can drive the sleeve to rotate. The sleeve is used to engage with a nut.

[0008] In this design, the base and lifting mechanism symmetrically arrange the bolt clamping device and tightening device on both sides, for engaging with the bolt nuts and bolt caps respectively. When tightening is required, the bolt clamping device secures the bolt, and then the tightening device applies the same torque to tighten the bolts uniformly. This design, through the cooperation of the bolt clamping device and the tightening device, ensures that each bolt is secured by the tightening device, which applies the same torque, thus solving the problem of inconsistent torque caused by manual installation in existing technologies.

[0009] Furthermore, since there are bolts on both sides of the plate heat exchanger, in order to tighten the bolts on both sides, this solution provides at least two lifting mechanisms on each side, and each lifting mechanism is equipped with a tightening device or a bolt clamping device.

[0010] In this design, at least two lifting mechanisms are provided on each side. Each lifting mechanism is equipped with a tightening device or a bolt clamping device. Therefore, tightening devices and bolt clamping devices are provided on both the left and right sides of the plate heat exchanger. The tightening devices and bolt clamping devices on the left and right sides respectively tighten the bolts on the left and right sides of the plate heat exchanger, satisfying the tightening requirements of the bolts on both sides.

[0011] Furthermore, since the bolts used in different models of plate heat exchangers are located at different heights, in order to meet the needs of different models of plate heat exchangers, the lifting mechanism described in this solution includes a lifting slide rail, a lifting slider, and a mounting plate. The lifting slide rail is vertically arranged, the lifting slider is installed on the lifting slide rail, and the lifting slider can be lifted and lowered along the lifting slide rail. The mounting plate is installed on the lifting slider, and the mounting plate is used for installing the bolt clamping device or the tightening device.

[0012] This solution includes a lifting mechanism to adjust the height of the bolt clamping or tightening device, ensuring that the height of the bolt clamping or tightening device matches the height of the bolt, thus guaranteeing that the bolt clamping and tightening devices can work together to tighten the bolt.

[0013] Furthermore, in order to lock the height of the bolt clamping device or tightening device, the lifting mechanism in this solution includes a limit screw, which is installed in conjunction with the lifting slider. The limit screw is used to lock or release the lifting slider.

[0014] In this design, the limit screw is installed in conjunction with the lifting slider. When the limit screw is tightened, the lifting slider is locked in place, thus stopping the lifting slider within the lifting rail. Once the lifting slider stops, its position is fixed because the bolt clamping or tightening device is connected to the lifting slider.

[0015] Furthermore, since the bolts used in different models of plate heat exchangers are located in different installation positions, in order to meet the needs of different models of plate heat exchangers, this solution also includes a first slide rail and a second slide rail. The first slide rail and the second slide rail are located on both sides of the base and are respectively installed in conjunction with the lifting mechanism located on both sides of the base. The lifting mechanism on both sides can slide along the corresponding first slide rail or second slide rail.

[0016] In this design, the lifting mechanisms on both sides can slide along the first or second slide rail. When the lifting mechanism slides, the position of the bolt clamping device or tightening device can be changed, so that the position of the bolt clamping device or tightening device matches the position of the bolt.

[0017] Furthermore, since the bolt lengths of different models of plate heat exchangers are not consistent, in order to meet the needs of different models of plate heat exchangers, this solution also includes a translation mechanism. The first slide rail or the second slide rail is installed on the translation mechanism, which is used to drive the lifting mechanisms on both sides to move closer or further apart.

[0018] This design uses a translation mechanism to move the lifting mechanisms on both sides closer together or further apart. Since bolt clamping or tightening devices are mounted on the lifting mechanisms on both sides, the distance between the bolt clamping and tightening devices changes as the lifting mechanisms move closer or further apart, thus accommodating bolts of different lengths.

[0019] Furthermore, to achieve the goal of moving the lifting mechanisms on both sides closer together or further apart, the translation mechanism described in this solution includes a linear guide rail and a ball bearing slider. The ball bearing slider is mounted on the linear guide rail and can slide along the linear guide rail. The ball bearing slider is used to connect with the first slide rail or the second slide rail.

[0020] In this design, the ball-bearing slider is connected to either the first or second slide rail. When the ball-bearing slider slides along the linear guide rail, the first and second slide rails located on both sides can move closer to each other. Furthermore, since the lifting mechanism is installed on the first and second slide rails, and the bolt clamping and tightening devices are installed on the lifting mechanism, the bolt clamping and tightening devices on both sides can ultimately move closer to or further away from each other.

[0021] The beneficial effects of this utility model are as follows: This solution uses a bolt clamping device and a tightening device working together. The bolt clamping device fixes the bolt, and the tightening device tightens the bolt using the same torque. Therefore, this solution ensures that each bolt is tightened with the same torque by the tightening device, thus solving the problem of inconsistent tightening force caused by manual tightening. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the base, translation mechanism, first slide rail, and second slide rail structure of this utility model;

[0024] Figure 3 This is a utility model Figure 2 A magnified view of detail I in the middle section;

[0025] Figure 4 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the bolt clamping device and tightening device of this utility model;

[0027] Figure 6 This is a schematic diagram of an embodiment of the present utility model;

[0028] In the diagram: 1. Base, 101. Base, 102. Boss, 2. Translation mechanism, 201. Spring cover, 202. Linear guide rail, 203. Ball slider, 204. Ball slider limit screw, 205. Lifting ring, 206. Hooked spring, 3. First slide rail, 4. Second slide rail, 5. Lifting mechanism, 501. Bottom slider, 502. Bottom slider limit screw, 503. Angle bracket, 504. Lifting slide rail, 505. Lifting... 506. Lifting slider limit screw; 507. Mounting plate; 6. Bolt clamping device; 601. Three-jaw chuck; 602. Chuck support frame; 603. Chuck base; 7. Tightening device; 701. Tightener; 702. Socket hex socket; 8. Plate heat exchanger; 801. Fixed clamping plate; 802. Heat exchange plates; 803. Movable clamping plate; 804. Guide rod; 805. Clamping bolt; 806. Clamping nut. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0030] The basic implementation examples are as follows: Figure 1 To be continued Figure 2 As shown, a plate heat exchanger loading and unloading device includes a base 1, a translation mechanism 2, a first slide rail 3, a second slide rail 4, a lifting mechanism 5, a bolt clamping device 6, and a tightening device 7.

[0031] Reference Figure 1 The base 1 includes a base 101 and a boss 102. The base 1 is located at the lowest end. The boss 102 is provided on the upper left side of the base 101. The boss 102 is used to hold the plate heat exchanger.

[0032] Reference Figure 1-3 The translation mechanism 2 specifically includes a spring cover 201, a linear guide rail 202, a ball slider 203, a ball slider limiting screw 204, a lifting ring 205, and a hook spring 206. Two translation mechanisms 2 are provided, located at the front and rear ends of the base 2 respectively, making the movement of the first slide rail 3 or the second slide rail 4 more stable. The linear guide rail 202 is specifically installed on the front and rear sides of the base 101, and the left end of the linear guide rail 202 on both sides contacts the boss 102. The ball slider 203 is fitted onto the linear guide rail 202 and can slide along the linear guide rail 202. The ball slider limiting screw 204 is installed on the outer side of the ball slider 203, which can lock the ball slider 203, thereby limiting its sliding. Figure 2 and Figure 3 As shown, the hook spring 206 is horizontally positioned above the linear guide rail 202. Both ends of the hook spring 206 are connected to the lifting rings 205. The lifting ring 205 at the left end of the hook spring 206 is mounted on the boss 102, and the lifting ring 205 at the right end is mounted on the ball slider 203. A spring cover 201 is provided above the hook spring 206. The spring cover 201 is used to cover the hook spring 206 to prevent external impurities from entering the hook spring 206 or the linear guide rail 202.

[0033] Reference Figure 1-2 The first slide rail 3 and the second slide rail 4 are respectively disposed at the left and right ends of the base 101, and the first slide rail 3 and the second slide rail 4 can move closer to or further away from each other through the translation mechanism 2. Specifically, in this embodiment, the two ends of the first slide rail 3 are respectively mounted on two translation mechanisms 2, while the second slide rail 4 is fixedly mounted on the boss 102. The first slide rail 3 can move closer to the second slide rail 4 under the drive of the translation mechanism 2. In some embodiments, the two ends of the second slide rail 4 can also be mounted on two translation mechanisms 2, while the first slide rail 3 is fixedly mounted on the boss 102.

[0034] In this embodiment, two lifting mechanisms 5 are provided on the first slide rail 3, and a tightening device 7 is installed on the lifting mechanism 5; two lifting mechanisms 5 are also provided on the second slide rail 4, and a bolt clamping device 6 is installed on the lifting mechanism 5.

[0035] Reference Figure 1 and Figure 4The lifting mechanism 5 includes a bottom slider 501, a bottom slider limiting screw 502, a bracket 503, a lifting slide rail 504, a lifting slider 505, a lifting slider limiting screw 506, and a mounting plate 507. The bottom slider 501 is mounted on either the first slide rail 3 or the second slide rail 4, and can move along either rail. The bottom slider 501 is fitted with a bottom slider limiting screw 502, which can stop the bottom slider 501 from sliding by locking it in place. The lifting slide rail 504 is fixed to the bottom slider 501 by the bracket 503. In this embodiment, two lifting sliders 505 are mounted on the lifting slide rail 504, and each lifting slider 505 is connected to the mounting plate 507. The two lifting sliders 505 are used to engage with bolts at the upper and lower ends, respectively. Meanwhile, a lifting slider limit screw 506 is also provided on the lifting slider 505. The lifting slider limit screw 506 can stop the lifting slider 505 on the lifting slide rail 504 by locking the lifting slider 505, so that the position of the lifting slider 505 matches the position of the bolt.

[0036] Reference Figure 1 , Figure 5 and Figure 6 The bolt clamping device 6 specifically includes a three-jaw chuck 601, a chuck support frame 602, and a chuck base 603. The chuck base 603 is fixedly mounted on the mounting plate 507, and the chuck support frame 602 can slide on the chuck base 603, specifically through a slide groove or slide rail. The three-jaw chuck 601 is mounted on the chuck support frame 602, and the three-jaw chuck 601 clamps the head of the clamping bolt 805 in the plate heat exchanger 8 to restrict the circumferential rotation of the clamping bolt 805. The tightening device 7 specifically includes a tightener 701 and a sleeve 702. The tightener 701 is fixedly mounted on the mounting plate 507, and the front end of the tightener 701 is provided with a sleeve 702, which can be replaced according to the size of the clamping nut 806. The tightener 701 is an electric wrench tool, which can tighten the bolt with a certain torque by rotation.

[0037] The specific working process of this embodiment is as follows:

[0038] (1) For the installation process of plate heat exchangers, please refer to Figure 6 :

[0039] Place the fixed clamping plate 801 of the plate heat exchanger 8 against the right side of the boss 102, and assemble the guide rod 804, heat exchange plates 802, and movable clamping plate 803 in sequence, while pre-installing the clamping bolts 805 and clamping nuts 806. Manually slide the lifting mechanism 5, bolt clamping device 6, and tightening device 7 to align the axes of the three-jaw chuck 601 and tightener 701 with the axes of the clamping bolts 805 and clamping nuts 806. Then tighten the bottom slider limit screw 502 and the lifting slider limit screw 506. Next, push the chuck support frame 602 to fix the head of the clamping bolt 805 in place with the three-jaw chuck 601. Then loosen the ball slider limit screw 204, and the hook spring 206 uses its spring force to pull the first slide rail 3 closer to the second slide rail 4, while the lifting mechanism 5 brings the tightening device 7 into contact with the clamping nut 806. Finally, the tightening device 701 is activated to tighten the clamping nut 806, thereby clamping the heat exchange plate 802. Once the tightening force of each tightening device 7 reaches the set value, the tightening device 7 stops working. The plate heat exchanger 8 is now installed. The translation mechanism 2, lifting mechanism 5, bolt clamping device 6, and tightening device 7 are then manually reset.

[0040] (2) For the disassembly process of plate heat exchangers, please refer to... Figure 6 :

[0041] Place the plate heat exchanger 8 to be disassembled on the base 101, close to the right side of the boss 102. Manually slide the lifting mechanism 5, bolt clamping device 6, and tightening device 7 to align the axes of the three-jaw chuck 601 and tightener 701 with the axes of the clamping bolt 805 and clamping nut 806. Then tighten the bottom slider limit screw 502 and the lifting slider limit screw 506; push the chuck support frame 602 so that the three-jaw chuck 601 fixes the head of the clamping bolt 805. Next, loosen the ball slider limit screw 204, and the hook spring 206 uses its spring force to pull the first slide rail 3 closer to the second slide rail 4, while the lifting mechanism 5 makes the tightening device 7 contact the clamping nut 806. Finally, activate the tightener 701 to loosen the clamping nut 806, thus releasing the heat exchange plates 802. After the clamping nut 806 is completely disengaged from the clamping bolt 805, the tightening device 7 stops working, and the plate heat exchanger 8 is disassembled. The manual reset mechanism includes the translation mechanism 2, the lifting mechanism 5, the bolt clamping device 6, and the tightening device 7.

[0042] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A plate heat exchanger loading and unloading device, characterized in that: It includes a base (1), a lifting mechanism (5), a bolt clamping device (6) and a tightening device (7). The lifting mechanism (5) is symmetrically arranged on both sides of the base (1). The bolt clamping device (6) and the tightening device (7) are respectively installed on the lifting mechanism (5) on both sides. The bolt clamping device (6) is used to fix the bolt, and the tightening device (7) is used to tighten or loosen the bolt. The bolt clamping device (6) includes a three-jaw chuck (601), a chuck support frame (602), and a chuck base (603). The three-jaw chuck (601) is mounted on the chuck support frame (602), the chuck support frame (602) is mounted on the chuck base (603), and the chuck base (603) is mounted on the lifting mechanism (5). The three-jaw chuck (601) is used to clamp bolts. The tightening device (7) includes a tightener (701) and a sleeve (702). The sleeve (702) is connected to the tightener (701). The tightener (701) can drive the sleeve (702) to rotate. The sleeve (702) is used to cooperate with the nut.

2. The plate heat exchanger loading and unloading device according to claim 1, characterized in that: Each of the lifting mechanisms (5) on each side is provided with at least two, and each lifting mechanism (5) is provided with a tightening device (7) or a bolt clamping device (6).

3. The plate heat exchanger loading and unloading device according to claim 1, characterized in that: The lifting mechanism (5) includes a lifting slide rail (504), a lifting slider (505), and a mounting plate (507). The lifting slide rail (504) is vertically arranged, and the lifting slider (505) is installed on the lifting slide rail (504). The lifting slider (505) can be lifted and lowered along the lifting slide rail (504). The mounting plate (507) is installed on the lifting slider (505) and is used for mounting the bolt clamping device (6) or the tightening device (7).

4. The plate heat exchanger loading and unloading device according to claim 3, characterized in that: The lifting mechanism (5) includes a limiting screw (506), which is installed in conjunction with the lifting slider (505). The limiting screw (506) is used to lock or release the lifting slider (505).

5. A plate heat exchanger loading and unloading device according to claim 1, characterized in that: It also includes a first slide rail (3) and a second slide rail (4), the first slide rail (3) and the second slide rail (4) are located on both sides of the base (1) and are respectively installed in cooperation with the lifting mechanism (5) located on both sides of the base (1). The lifting mechanism (5) on both sides can slide along the corresponding first slide rail (3) or second slide rail (4).

6. A plate heat exchanger loading and unloading device according to claim 5, characterized in that: Includes a translation mechanism (2), with the first slide rail (3) or the second slide rail (4) mounted on the translation mechanism (2), and the translation mechanism (2) is used to drive the lifting mechanisms (5) on both sides to move closer to or further away from each other.

7. A plate heat exchanger loading and unloading device according to claim 6, characterized in that: The translation mechanism (2) includes a linear guide rail (202) and a ball slider (203). The ball slider (203) is mounted on the linear guide rail (202) and can slide along the linear guide rail (202). The ball slider (203) is used to connect with the first slide rail (3) or the second slide rail (4).

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