Filter screen cleaning structure of plate heat exchanger

Abstract

The utility model belongs to the technical field of plate heat exchangers, and particularly relates to a filter screen cleaning structure of a plate heat exchanger, which comprises a plate heat exchanger body. The right side of the plate heat exchanger body is communicated with the water inlet pipe; the right side of the water inlet pipe is communicated with the filter box; the right side of the filter box is communicated with the connecting pipe; the filter screen is arranged in an inner cavity of the filter box; the installation mechanisms are located on the front side and the rear side of the filter box, the installation mechanisms are used for rapidly disassembling and assembling the filter screen, and each installation mechanism comprises a sealing plate, an installation plate, a handle, a positioning box, a clamping plate, a positioning pin, an inclined block, a reset block, a tension spring, a guide block, a transmission plate, a box body, a button, a limiting plate, a first spring, a connecting rod, a hook and a positioning frame. According to the utility model, through the cooperative use of the mounting mechanism, the filter plate can be quickly cleaned, and the filter plate is prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and in particular to a filter cleaning structure for plate heat exchangers. Background Technology

[0002] A plate heat exchanger is a heat exchange device that uses multiple parallel thin plates (usually made of metal) to transfer heat through the flow channels between the plates. These plates are connected by sealing gaskets or welding to form multiple parallel heat exchange channels in which different fluids (such as hot fluids and cold fluids) flow and exchange heat. Due to its compact structure and high heat exchange efficiency, plate heat exchangers are widely used in various industrial fields that require heat exchange.

[0003] Existing plate heat exchanger filters are usually designed as fixed or embedded structures, which makes disassembly of the filters relatively complicated and time-consuming when cleaning or maintenance is required. Therefore, this utility model proposes a filter cleaning structure for plate heat exchangers to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing plate heat exchanger filters are usually designed as fixed or embedded structures, which makes disassembly of the filters relatively complex and time-consuming when cleaning or maintenance is required. Therefore, this invention proposes a filter cleaning structure for plate heat exchangers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A filter cleaning structure for a plate heat exchanger includes:

[0007] Plate heat exchanger body;

[0008] The inlet pipe is connected to the right side of the plate heat exchanger body;

[0009] The filter box is connected to the right side of the water inlet pipe;

[0010] A connecting pipe is provided, and the right side of the filter box is connected to the connecting pipe;

[0011] A filter screen, the filter screen being disposed within the cavity of the filter cartridge;

[0012] The mounting mechanism is located on the front and rear sides of the filter box and is used for quick installation and removal of the filter screen.

[0013] As a preferred embodiment of this utility model, the installation mechanism includes: a sealing plate, an installation plate, a handle, a positioning box, a clamping plate, a positioning pin, an inclined block, a reset block, a tension spring, a guide block, a transmission plate, a box body, a button, a limit plate, a first spring, a connecting rod, a hook, a positioning frame, a second spring, and a third spring.

[0014] The top of the filter screen is fixedly connected to the sealing plate. The top of the sealing plate passes through the filter box and is fixedly connected to the mounting plate. The top of the mounting plate is fixedly connected to the handle. The front and rear sides of the filter box are fixedly connected to the positioning box. The front and rear sides of the bottom of the mounting plate are fixedly connected to the clamping plate. The bottom of the clamping plate passes through the inner cavity of the positioning box. A positioning hole is provided on the right side of the clamping plate. The inner cavity of the positioning hole is connected to a positioning pin. There are two positioning pins. The right side of the positioning pin is fixedly connected to an inclined block. There are two inclined blocks. The bottom of the inclined blocks is slidably connected to the positioning box. The front and rear sides of the inclined blocks are fixedly connected to a reset block. The right side of the reset block is fixedly connected to a tension spring. The right side of the tension spring is fixedly connected to the inner wall of the positioning box. There are two guide blocks. The two guide blocks are set on the right side of the inner cavities of the two positioning boxes. The top of the guide blocks passes through the positioning box. The front and rear sides of the bottom of the transmission plate are connected to the top of the guide blocks. The filter box is fixedly connected to the top of the transmission plate. The button is located on the top of the filter box, and its bottom extends through the inner cavity of the filter box and is fixedly connected to the limiting plate. The bottom of the limiting plate is fixedly connected to the first spring, and the bottom of the first spring is fixedly connected to the bottom of the inner cavity of the filter box. The front and rear sides of the bottom of the limiting plate are fixedly connected to the connecting rods. The ends of the two connecting rods away from the limiting plate are fixedly connected to the hooks. The positioning frame is fixedly installed on the top of the filter box and located at the bottom of the transmission plate. The front and rear sides of the top of the positioning frame have limiting openings. The bottom of the hook extends through the inner cavity of the positioning frame and cooperates with the limiting openings. The ends of the two hooks away from each other are fixedly connected to the second spring. The ends of the two second springs away from each other are fixedly connected to the inner wall of the filter box. The front and rear sides of the bottom of the transmission plate are fixedly connected to the third spring, and the bottom of the third spring is fixedly connected to the top of the filter box.

[0015] As a preferred embodiment of this utility model, the top of the filter box is provided with a first opening, which is adapted to the sealing plate.

[0016] As a preferred embodiment of this utility model, a sliding groove is provided at the bottom right side of the positioning box cavity, and a sliding rail is provided at the bottom of the inclined block. The sliding groove and the sliding rail are adapted to each other. A second opening is provided on both sides of the top of the positioning box, and the second opening is used in conjunction with the card plate and the guide block, respectively.

[0017] As a preferred embodiment of this utility model, a third opening is provided on both the front and rear sides of the top of the transmission plate, and the third opening is adapted to the hook.

[0018] As a preferred embodiment of this utility model, a fourth opening is provided on both the front and rear sides of the bottom of the box, the fourth opening being adapted to the hook, and a round hole is provided on the top of the box, the round hole being adapted to the button.

[0019] Beneficial effects:

[0020] 1. When the filter screen needs to be disassembled, first, press the button. The button will move the limit plate, connecting rod and hook. When the hook moves, it will move out of the limit hole at the top of the positioning frame. Then, the third spring will move the transmission plate and guide block. When the guide block moves, it will release the limit of the inclined block. Then, the reset block and tension spring will move the inclined block and positioning pin. When the positioning pin moves, it will move out of the positioning hole. Then, the worker can pull the handle to take out the sealing plate and filter screen from the filter box, which is convenient and quick to clean the filter screen and prevent the filter screen from clogging.

[0021] In this invention, the filter screen can be cleaned quickly and clogged by using the installation mechanism. Attached Figure Description

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

[0023] Figure 2 This is a cross-sectional view of the filter box of this utility model;

[0024] Figure 3 This is a schematic diagram of the filter box and handle structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the guide block and the third spring structure of this utility model;

[0026] Figure 5 For the present utility model Figure 2 A magnified view of A in the middle.

[0027] In the diagram: 1. Plate heat exchanger body; 2. Inlet pipe; 3. Filter box; 4. Connecting pipe; 5. Filter screen; 6. Sealing plate; 7. Mounting plate; 8. Handle; 9. Positioning box; 10. Clamping plate; 11. Positioning pin; 12. Inclined block; 13. Reset block; 14. Tension spring; 15. Guide block; 16. Transmission plate; 17. Box body; 18. Button; 19. Limiting plate; 20. First spring; 21. Connecting rod; 22. Hook; 23. Positioning frame; 24. Second spring; 25. Third spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example

[0030] Reference Figures 1-5 A filter cleaning structure for a plate heat exchanger, comprising:

[0031] Plate heat exchanger body 1;

[0032] Water inlet pipe 2 is connected to the right side of plate heat exchanger body 1;

[0033] The right side of the inlet pipe 2 is connected to the filter box 3;

[0034] Connecting pipe 4, the right side of filter box 3 is connected to connecting pipe 4;

[0035] Filter screen 5, filter screen 5 is provided for the inner cavity of filter box 3;

[0036] The installation mechanism is located on the front and rear sides of the filter box 3. The installation mechanism is used for quick installation and removal of the filter screen 5.

[0037] As a preferred embodiment of this utility model, the installation mechanism includes: a sealing plate 6, an installation plate 7, a handle 8, a positioning box 9, a clamping plate 10, a positioning pin 11, an inclined block 12, a reset block 13, a tension spring 14, a guide block 15, a transmission plate 16, a box body 17, a button 18, a limiting plate 19, a first spring 20, a connecting rod 21, a hook 22, a positioning frame 23, a second spring 24, and a third spring 25;

[0038] The top of filter screen 5 is fixedly connected to sealing plate 6. The top of sealing plate 6 passes through filter box 3 and is fixedly connected to mounting plate 7. The top of mounting plate 7 is fixedly connected to handle 8. The front and rear sides of filter box 3 are fixedly connected to positioning box 9. The front and rear sides of the bottom of mounting plate 7 are fixedly connected to clamping plate 10. The bottom of clamping plate 10 extends into the inner cavity of positioning box 9. A positioning hole is provided on the right side of clamping plate 10. The inner cavity of the positioning hole is inserted into positioning pin 11. There are two positioning pins 11. The right side of positioning pin 11 is fixedly connected to inclined block 12. There are two inclined blocks 12. The bottom of inclined block 12 is slidably connected to positioning box 9. The front and rear sides of inclined block 12 are fixedly connected to reset... Block 13 is fixedly connected. The right side of reset block 13 is fixedly connected to tension spring 14. The right side of tension spring 14 is fixedly connected to the inner wall of positioning box 9. There are two guide blocks 15, both of which are located on the right side of the inner cavity of the two positioning boxes 9. The top of the guide block 15 penetrates through the positioning box 9. The front and rear sides of the bottom of transmission plate 16 are fixedly connected to the top of guide block 15. Box body 17 is fixedly installed on the top of transmission plate 16. Button 18 is located on the top of box body 17. The bottom of button 18 penetrates through the inner cavity of box body 17 and is fixedly connected to limiting plate 19. The bottom of limiting plate 19 is fixedly connected to first spring 20. The bottom of first spring 20 is fixedly connected to the bottom of the inner cavity of box body 17. The front and rear sides of the bottom of the positioning plate 19 are fixedly connected to the connecting rods 21. The ends of the two connecting rods 21 away from the limiting plate 19 are fixedly connected to the hooks 22. The positioning frame 23 is fixedly installed on the top of the filter box 3 and located at the bottom of the transmission plate 16. The front and rear sides of the top of the positioning frame 23 are provided with limiting openings. The bottom of the hooks 22 penetrates into the inner cavity of the positioning frame 23 and cooperates with the limiting openings. The ends of the two hooks 22 away from each other are fixedly connected to the second springs 24. The ends of the two second springs 24 away from each other are fixedly connected to the inner wall of the box body 17. The front and rear sides of the bottom of the transmission plate 16 are fixedly connected to the third springs 25. The bottom of the third springs 25 is fixedly connected to the top of the filter box 3. When the filter screen 5 needs to be disassembled according to the specified connection, firstly, press button 18. Button 18 moves the limiting plate 19, connecting rod 21 and hook 22. When hook 22 moves, it moves out of the limiting hole at the top of positioning frame 23. Then, the transmission plate 16 and guide block 15 move through the third spring 25. When guide block 15 moves, it releases the limit of inclined block 12. Then, the inclined block 12 and positioning pin 11 move through the cooperation of reset block 13 and tension spring 14. When positioning pin 11 moves, it moves out of positioning hole. Then, the worker can pull handle 8 to remove sealing plate 6 and filter screen 5 from filter box 3, which facilitates quick cleaning of filter screen 5 and prevents filter screen 5 from clogging.

[0039] As a preferred embodiment of this utility model, the top of the filter box 3 is provided with a first opening, which is adapted to the sealing plate 6. By providing the first opening, the sealing plate 6 can be installed conveniently, thereby improving the sealing performance of the filter box 3.

[0040] As a preferred embodiment of this utility model, a sliding groove is provided at the bottom right side of the inner cavity of the positioning box 9, and a sliding rail is provided at the bottom of the inclined block 12. The sliding groove and the sliding rail are adapted to each other. A second opening is provided on both sides of the top of the positioning box 9. The second opening is used in conjunction with the card plate 10 and the guide block 15 respectively. The stability of the inclined block 12 when it moves can be improved by the cooperation of the sliding groove and the sliding rail. The second opening can facilitate the movement of the card plate 10 and the guide block 15.

[0041] As a preferred embodiment of this utility model, a third opening is provided on both the front and rear sides of the top of the transmission plate 16. The third opening is adapted to the hook 22, and the hook 22 can be moved conveniently by providing the third opening.

[0042] As a preferred embodiment of this utility model, a fourth opening is provided on the front and rear sides of the bottom of the box body 17. The fourth opening is adapted to the hook 22. A round hole is provided on the top of the box body 17. The round hole is adapted to the button 18. By providing the round hole, the button 18 can be moved easily.

[0043] With the above structure, the filter screen 5 can be cleaned quickly and clogged by using the installation mechanism.

[0044] It should be noted that all electrical equipment used in this application is powered by an external power source. The specific type of plate heat exchanger body 1 used can be selected by those skilled in the art. Furthermore, the plate heat exchanger body 1 and the like are all existing technologies and will not be described in detail in this solution.

[0045] The working principle of this utility model is as follows: When the filter screen 5 needs to be disassembled during use, firstly, press button 18. Button 18 drives the limiting plate 19, connecting rod 21 and hook 22 to move. When hook 22 moves, it moves out of the limiting hole at the top of positioning frame 23. Then, the transmission plate 16 and guide block 15 are driven to move through the third spring 25. When guide block 15 moves, it releases the limit of inclined block 12. Then, the inclined block 12 and positioning pin 11 are driven to move through the cooperation of reset block 13 and tension spring 14. When positioning pin 11 moves, it moves out of positioning hole. Then, the worker can pull handle 8 to take out sealing plate 6 and filter screen 5 from filter box 3, which facilitates quick cleaning of filter screen 5 and prevents filter screen 5 from clogging.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A filter screen cleaning structure for a plate heat exchanger, characterized in that, include: Plate heat exchanger body (1); Water inlet pipe (2), the right side of the plate heat exchanger body (1) is connected to the water inlet pipe (2); The filter box (3) is connected to the right side of the water inlet pipe (2); Connecting pipe (4), the right side of the filter box (3) is connected to the connecting pipe (4); A filter screen (5) is provided for the inner cavity of the filter box (3); The installation mechanism is located on the front and rear sides of the filter box (3) and is used for quick installation and removal of the filter screen (5).

2. The filter cleaning structure for a plate heat exchanger according to claim 1, characterized in that, The installation mechanism includes: a sealing plate (6), an installation plate (7), a handle (8), a positioning box (9), a clamping plate (10), a positioning pin (11), an inclined block (12), a reset block (13), a tension spring (14), a guide block (15), a transmission plate (16), a box body (17), a button (18), a limiting plate (19), a first spring (20), a connecting rod (21), a hook (22), a positioning frame (23), a second spring (24), and a third spring (25); The top of the filter screen (5) is fixedly connected to the sealing plate (6). The top of the sealing plate (6) passes through the filter box (3) and is fixedly connected to the mounting plate (7). The top of the mounting plate (7) is fixedly connected to the handle (8). The front and rear sides of the filter box (3) are fixedly connected to the positioning box (9). The front and rear sides of the bottom of the mounting plate (7) are fixedly connected to the clamping plate (10). The bottom of the clamping plate (10) passes through the inner cavity of the positioning box (9). A positioning hole is provided on the right side of the clamping plate (10). The inner cavity of the positioning hole is connected to the positioning pin (11). There are two positioning pins (11). The right side of the transmission plate (16) is fixedly connected to the inclined block (12). There are two inclined blocks (12). The bottom of the inclined block (12) is slidably connected to the positioning box (9). The front and rear sides of the inclined block (12) are fixedly connected to the reset block (13). The right side of the reset block (13) is fixedly connected to the tension spring (14). The right side of the tension spring (14) is fixedly connected to the inner wall of the positioning box (9). There are two guide blocks (15). The two guide blocks (15) are both located on the right side of the inner cavity of the two positioning boxes (9). The top of the guide block (15) penetrates the positioning box (9). The front and rear sides of the bottom of the transmission plate (16) are both connected to the guide blocks (15). The top is fixedly connected, the box (17) is fixedly installed on the top of the transmission plate (16), the button (18) is set on the top of the box (17), the bottom of the button (18) penetrates into the inner cavity of the box (17) and is fixedly connected to the limiting plate (19), the bottom of the limiting plate (19) is fixedly connected to the first spring (20), the bottom of the first spring (20) is fixedly connected to the bottom of the inner cavity of the box (17), the front and rear sides of the bottom of the limiting plate (19) are fixedly connected to the connecting rod (21), and the ends of the two connecting rods (21) away from the limiting plate (19) are fixedly connected to the hook (22), the positioning frame ( 23) Fixedly installed on the top of the filter box (3) and located at the bottom of the transmission plate (16), the positioning frame (23) has limit openings on the front and rear sides of the top, the bottom of the hook (22) penetrates into the inner cavity of the positioning frame (23) and cooperates with the limit opening, the ends of the two hooks (22) that are far apart from each other are fixedly connected to the second spring (24), the ends of the two second springs (24) that are far apart from each other are fixedly connected to the inner wall of the box body (17), the front and rear sides of the bottom of the transmission plate (16) are fixedly connected to the third spring (25), and the bottom of the third spring (25) is fixedly connected to the top of the filter box (3).

3. The filter cleaning structure for a plate heat exchanger according to claim 1, characterized in that, The top of the filter box (3) has a first opening, which is adapted to the sealing plate (6).

4. The filter cleaning structure for a plate heat exchanger according to claim 2, characterized in that, The bottom right side of the positioning box (9) has a sliding groove, and the bottom of the inclined block (12) has a slide rail. The sliding groove and the slide rail are compatible. The top of the positioning box (9) has a second opening on both sides. The second opening is used in conjunction with the card plate (10) and the guide block (15).

5. The filter cleaning structure for a plate heat exchanger according to claim 2, characterized in that, The transmission plate (16) has a third opening on both the front and rear sides of the top, and the third opening is adapted to the hook (22).

6. The filter cleaning structure for a plate heat exchanger according to claim 2, characterized in that, The bottom of the box (17) has a fourth opening on the front and back sides, which is compatible with the hook (22). The top of the box (17) has a round hole, which is compatible with the button (18).

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