Self-cleaning plate heat exchanger

Abstract

The utility model relates to the technical field of plate heat exchangers, and discloses a self-cleaning plate heat exchanger which comprises a heat exchanger body, one side of the heat exchanger body is fixedly connected with a plurality of input pipes and output pipes, one end of each input pipe is provided with a filtering assembly, and the outer wall of the heat exchanger body is provided with a cleaning assembly. The filtering assembly comprises a plurality of filtering pipes, each filtering pipe is slidably connected to the outer wall of the input pipe, one end of each filtering pipe is slidably connected with a connecting pipe, the outer walls of the input pipe and the connecting pipe are fixedly connected with fixing discs, the two sides of each filtering pipe are fixedly connected with first connecting discs, and the first connecting discs are fixedly connected with second connecting discs. First clamping blocks are fixedly connected to the two sides of each first connecting disc. According to the heat exchanger, water entering the heat exchanger is filtered through the filter screen in the filter pipe, meanwhile, the interior of the filter pipe is conveniently cleaned through clamping between the second clamping block and the first clamping block, and the effect of filtering water flow entering the heat exchanger is achieved.

Description

Technical Field

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

[0002] Among numerous heating and cooling components in industrial sectors and daily life, plate heat exchangers occupy an indispensable position due to their high-efficiency heat exchange capabilities. Whether it's material temperature control in chemical production, heat transfer in district heating systems, or temperature control in the food processing industry, plate heat exchangers can achieve efficient heat exchange between hot and cold fluids through heat transfer between the plates, accurately meeting the stringent temperature requirements of different scenarios and providing strong support for various production activities and comfortable living experiences.

[0003] Common plate heat exchangers primarily consist of a series of parallel, corrugated metal plates separated by gaskets, forming alternating channels for hot and cold fluids. During operation, the hot and cold fluids flow within their respective channels, utilizing the excellent thermal conductivity of the metal plates to transfer heat from the hot to the cold fluid. The heat from the hot fluid is transferred to the cold fluid through the plates, raising the temperature of the cold fluid and lowering the temperature of the hot fluid, thus completing the heat exchange process. The entire process relies on the pressure difference of the fluids to drive the flow, resulting in a relatively simple structure and high heat exchange efficiency.

[0004] However, existing plate heat exchangers have a prominent problem. In practical applications, the water entering the heat exchanger usually contains certain impurities. These impurities easily adhere to the surface of the internal pipes after entering the heat exchanger with the water flow. The accumulation of impurities not only gradually reduces the cross-sectional area of ​​the fluid channel, hindering normal water flow, but also reduces the thermal conductivity of the metal plates, thus seriously affecting the heat exchanger's heat exchange efficiency. This results in unstable and inefficient heat transfer, reduced overall equipment operating efficiency, and difficulty in meeting the high standards of heat exchange performance required in actual production and daily life. Therefore, a self-cleaning plate heat exchanger is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a self-cleaning plate heat exchanger, which aims to improve the problem that water entering the heat exchanger contains certain impurities, which easily adhere to the surface of the pipes inside the heat exchanger and affect the use of the equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A self-cleaning plate heat exchanger includes a heat exchanger, with multiple input pipes and output pipes fixedly connected to one side of the heat exchanger, a filter assembly provided at one end of the input pipe, and a cleaning assembly provided on the outer wall of the heat exchanger.

[0008] The filtering assembly includes multiple filter tubes, each of which is slidably connected to the outer wall of the input tube. A connecting tube is slidably connected to one end of each filter tube. A fixed plate is fixedly connected to the outer walls of both the input tube and the connecting tube. A connecting plate I is fixedly connected to both sides of each filter tube. A locking block I is fixedly connected to both sides of each connecting plate I. A connecting plate II is provided on the outer wall of each locking block I. Multiple locking blocks II are slidably connected inside each connecting plate II, and these locking blocks II engage with the outer wall of the locking block I. An angled sliding groove is provided inside each locking block II. An adjustment component is provided on the outer wall of each locking block II for adjusting its movement.

[0009] As a further description of the above technical solution:

[0010] The adjustment assembly includes multiple connecting rings located on one side of the second card block. A filter screen is fixedly connected inside the filter tube, and a fixing post is fixedly connected to both sides of each fixing plate.

[0011] As a further description of the above technical solution:

[0012] Each of the fixed columns is provided with a spring on its outer wall. One end of the spring is fixedly connected to a connecting ring, which is slidably connected to the outer wall of the fixed column. The other end of the spring is fixedly connected to the outer wall of the fixed column.

[0013] As a further description of the above technical solution:

[0014] Each of the connecting rings has multiple connecting posts fixedly connected to one end, and a slide bar is fixedly connected between two adjacent connecting posts. The slide bar is slidably connected to the inner wall of the angled slide groove. A protective cylinder is fixedly connected to the outer wall of each connecting ring, and a transmission plate is fixedly connected to the outer wall of each protective cylinder.

[0015] As a further description of the above technical solution:

[0016] The cleaning assembly includes a cleaning plate located on the outer wall of the heat exchanger. A fixing frame is fixedly connected to one side of the heat exchanger. Multiple fixing strips are fixedly connected to the inner wall of the fixing frame, and a sliding seat is slidably connected to the outer wall of the fixing frame.

[0017] As a further description of the above technical solution:

[0018] The slide block is slidably connected inside the slide base, and a motor is fixedly connected inside the slide block.

[0019] As a further description of the above technical solution:

[0020] The motor output end is fixedly connected to a wheel, and the wheel meshes with the fixed bar.

[0021] As a further description of the above technical solution:

[0022] The outer wall of the slide is fixedly connected to one side of the cleaning plate, and a fixing plate is slidably connected to the other side of the cleaning plate. The outer wall of the fixing plate is fixedly connected to the other side of the heat exchanger.

[0023] This utility model has the following beneficial effects:

[0024] In this invention, the water entering the heat exchanger is filtered through the filter screen inside the filter tube. At the same time, the engagement between the second and first locking blocks facilitates the cleaning of the inside of the filter tube, achieving the effect of filtering the water entering the heat exchanger. This solves the problem that the water entering the heat exchanger contains certain impurities, which easily adhere to the surface of the pipes inside the heat exchanger and affect the use of the equipment, thus enhancing the heat exchange efficiency of the heat exchanger.

[0025] In this invention, a motor drives a rotating wheel to rotate on the outer wall of a fixed strip, causing the cleaning plate to move back and forth in a straight line on the outer wall of the heat exchanger. This achieves the cleaning effect on the surface of the heat exchanger, solving the problem that a large amount of dust easily adheres to the surface of the equipment after long-term use, which can affect the use of the equipment and enhancing the heat transfer effect of the equipment. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a self-cleaning plate heat exchanger proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the exploded structure of the filter tube of a self-cleaning plate heat exchanger proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the two-section structure of the connecting plate of a self-cleaning plate heat exchanger proposed in this utility model.

[0029] Figure 4 This is an exploded view of the cleaning plate structure of a self-cleaning plate heat exchanger proposed in this utility model.

[0030] Legend:

[0031] 1. Heat exchanger; 2. Inlet pipe; 3. Filter pipe; 4. Connecting plate one; 5. Fixing plate; 6. Connecting pipe; 7. Locking block one; 8. Locking block two; 9. Angled slide groove; 10. Connecting column; 11. Sliding bar; 12. Connecting ring; 13. Spring; 14. Connecting plate two; 15. Fixing column; 16. Protective cylinder; 17. Transmission plate; 18. Fixing frame; 19. Slide seat; 20. Slider; 21. Motor; 22. Rotary wheel; 23. Fixing bar; 24. Cleaning plate; 25. Fixing plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3 The present invention provides an embodiment of a self-cleaning plate heat exchanger, comprising a heat exchanger 1, with multiple input pipes 2 and output pipes fixedly connected to one side of the heat exchanger 1, a filter assembly provided at one end of the input pipes 2, and a cleaning assembly provided on the outer wall of the heat exchanger 1.

[0034] The filter assembly includes multiple filter tubes 3, each slidably connected to the outer wall of the inlet pipe 2 to ensure smooth water flow into the filter assembly. Each filter tube 3 has a slidably connected connecting pipe 6 at one end, allowing for effective connection between the filter assembly and other pipe components. Fixing discs 5 are fixedly connected to the outer walls of both the inlet pipe 2 and the connecting pipe 6. The fixing discs 5 enhance the stability of the entire filter assembly, ensuring no loosening during operation. Connecting discs 1-4 are fixedly connected to both sides of each filter tube 3, providing additional support and connection points to ensure the robustness of the filter tube 3. Locking blocks 1-7 are fixedly connected to both sides of each connecting disc 1-4, allowing for secure connection between the filter tube 3 and other components. Connecting discs 2-14 are provided on the outer wall of each locking block 1-7, facilitating connection with other components. Multiple locking blocks 2-8 are slidably connected inside each connecting disc 2-14, engaging with the outer wall of locking block 1-7 for effective positioning and fixation. Each locking block 8 has an internal angled groove 9, which allows the locking block 8 to slide in a specific direction, facilitating subsequent adjustment and cleaning. An adjustment assembly is located on the outer wall of the locking block 8 to regulate its movement, optimizing the filtration effect and ensuring timely removal of impurities. The adjustment assembly includes multiple connecting rings 12, located on one side of the locking block 8, facilitating further adjustment. A filter screen is fixedly connected inside the filter tube 3, effectively filtering impurities in the water to ensure clean water entering subsequent pipes. Each fixed plate 5 has fixed posts 15 on both sides, providing additional support for the entire component. Each fixed post 15 has a spring 13 on its outer wall, with a connecting ring 12 fixedly connected to one end. The spring 13 allows the connecting ring 12 to move appropriately under force, enabling flexible adjustment. The connecting ring 12 slides on the outer wall of the fixed post 15, ensuring smooth movement. The other end of the spring 13 is fixedly connected to the outer wall of the fixed column 15, maintaining the stability of the assembly. Each connecting ring 12 has multiple connecting columns 10 fixedly connected to one end, which serve as both connections and supports in the overall structure. A slide bar 11 is fixedly connected between two adjacent connecting columns 10, and the slide bar 11 slides against the inner wall of the angled groove 9. This design allows the filter assembly to self-adjust during operation, ensuring optimal filtration. A protective cylinder 16 is fixedly connected to the outer wall of each connecting ring 12. The protective cylinder 16 effectively protects the internal components and extends the service life of the equipment. A transmission plate 17 is fixedly connected to the outer wall of each protective cylinder 16. The transmission plate 17 transmits operating force, ensuring stable operation of the filter assembly during work.

[0035] Specifically, during the water filtration process, the equipment uses the filter screen inside the filter tube 3 to filter and separate impurities in the water, thereby ensuring that the water entering the heat exchanger 1 remains clean. This process is crucial because the presence of impurities causes them to adhere to the surface of the pipes inside the heat exchanger 1, thus affecting the operating efficiency and heat exchange effect of the equipment. When impurities clog the filter screen inside the filter tube 3, the operator can troubleshoot by pulling the transmission plate 17. At this time, the movement of the transmission plate 17 will push the connecting ring 12 to move accordingly through the protective cylinder 16. During the movement of the connecting ring 12, the spring 13 will be stretched. The spring 13 is designed to store energy and release it in subsequent operations. As the connecting ring 12 moves, the connecting column 10 will push the slide bar 11 to slide on the inner wall of the angled slide groove 9. This process causes the second locking block 8 to separate from the outer wall of the first locking block 7, achieving effective separation between the filter tube 3 and the input pipe 2 and the connecting pipe 6. This design allows operators to easily clean impurities inside the filter tube 3, ensuring the durability and reliability of the filtration effect. After cleaning, the operator must reset the filter tube 3. Releasing the pressure on the transmission plate 17 will cause the spring 13 to rebound, pushing the second locking block 8 back to the outer wall of the first locking block 7. This reset mechanism ensures that the filter tube 3 can quickly and securely return to its original position after cleaning, effectively fixing the filter tube 3 and ensuring that the water flowing into the heat exchanger 1 continues to maintain a good filtration effect.

[0036] Reference Figure 1 and Figure 4The cleaning assembly includes a cleaning plate 24, located on the outer wall of the heat exchanger 1. The cleaning plate 24 is responsible for cleaning dust and impurities from the surface of the heat exchanger 1 to improve the heat transfer efficiency and overall performance of the equipment. A mounting bracket 18 is fixedly connected to one side of the heat exchanger 1. The mounting bracket 18 provides reliable support for the entire cleaning assembly, ensuring the stability of the components during operation. Multiple fixing strips 23 are fixedly connected to the inner wall of the mounting bracket 18, guiding the movement trajectory of the cleaning plate 24 and ensuring the effectiveness and precision of the cleaning process. A slide block 19 is slidably connected to the outer wall of the mounting bracket 18. The design of the slide block 19 allows the cleaning plate 24 to move up and down or left and right on the surface of the heat exchanger 1, achieving comprehensive cleaning. A slider 20 is slidably connected inside the slide block 19, allowing the slide block 19 to slide smoothly, contributing to the smoothness and efficiency of the cleaning process. A motor 21 is fixedly connected inside the slider 20. The motor 21 is the power source of the component and is responsible for driving the movement of the entire cleaning assembly. A rotating wheel 22 is fixedly connected to the output end of the motor 21. The rotating wheel 22 meshes with the fixing bar 23. The rotational motion of the rotating wheel 22 is effectively transmitted to the slide 19, pushing the slide 19 to move, thereby realizing the up-down or left-right movement of the cleaning plate 24. The outer wall of the slide 19 is fixedly connected to one side of the cleaning plate 24, so that the cleaning plate 24 can move with the slide 19. A fixing plate 25 is slidably connected to the other side of the cleaning plate 24. The design of the fixing plate 25 ensures that the cleaning plate 24 remains stable during the cleaning process and effectively transmits the cleaning force to the surface of the heat exchanger 1. The outer wall of the fixing plate 25 is fixedly connected to the other side of the heat exchanger 1, providing additional support for the cleaning assembly and ensuring that there is no loosening or displacement during the cleaning process.

[0037] Specifically, during the cleaning process of the heat exchanger 1 surface, the motor 21 needs to be started first. Starting the motor 21 will cause its output end to drive the rotating wheel 22 to rotate. The rotation of the wheel 22, fixed to the outer wall of the fixing strip 23, pushes the cleaning plate 24 on one side of the slide 19 upwards along the surface of the heat exchanger 1. This design not only optimizes the cleaning process but also effectively improves cleaning efficiency. When the wheel 22 completes its rotation and moves to the top of the fixing strip 23 group, it will rotate and move from one side of the fixing strip 23 group to the other side. During this process, the movement of the wheel 22 will push the slider 20 on the outer wall of the motor 21 to slide inside the slide 19, allowing the cleaning plate 24 on one side of the slide 19 to move downwards on the surface of the heat exchanger 1. This up-and-down motion mechanism allows the cleaning plate 24 to move back and forth linearly on the surface of the heat exchanger 1, fully utilizing the surface friction of the cleaning plate 24 to effectively clean dust and dirt from the surface of the heat exchanger 1. Through this up-and-down motion, the cleaning plate 24 can reach every corner of the heat exchanger 1 surface, ensuring that dust is thoroughly removed, thereby enhancing the heat transfer effect of the equipment. Ensuring the cleanliness of the heat exchanger 1 not only improves the working efficiency of the equipment but also extends its service life.

[0038] Working principle: During the water filtration process, the equipment uses the filter screen inside the filter tube 3 to filter and separate impurities in the water, ensuring that the water entering the heat exchanger 1 is clean and preventing impurities from adhering to the surface of the pipes inside the heat exchanger 1. When impurities clog the filter screen inside the filter tube 3, the transmission plate 17 is pulled, and the connecting ring 12 is moved through the protective cylinder 16. As the connecting ring 12 moves, it stretches the spring 13 and pushes the slide bar 11 to slide on the inner wall of the angled slide groove 9 through the connecting column 10, so that the second locking block 8 separates from the outer wall of the first locking block 7. In this way, the filter tube 3 can be separated from the input pipe 2 and the connecting pipe 6, which facilitates the cleaning of impurities inside the filter tube 3. After cleaning, the filter tube 3 is reset, the pressure on the transmission plate 17 is released, and the rebound force of the spring 13 pushes the second locking block 8 to move back to the outer wall of the first locking block 7, thereby fixing the position of the filter tube 3 and achieving the filtration effect of the water entering the heat exchanger 1.

[0039] During the cleaning process of the heat exchanger 1 surface, the motor 21 is started, and the output end of the motor 21 drives the rotating wheel 22 to rotate on the outer wall of the fixed bar 23, thereby pushing the cleaning plate 24 on one side of the slide 19 to move upward on the surface of the heat exchanger 1. When the rotating wheel 22 rotates and moves to the top of the fixed bar 23 group, the rotating wheel 22 will rotate and move from one side of the fixed bar 23 group to the other side, and push the slider 20 on the outer wall of the motor 21 to slide inside the slide 19, so that the cleaning plate 24 on one side of the slide 19 moves downward on the surface of the heat exchanger 1, thereby controlling the cleaning plate 24 to move up and down in a straight line on the surface of the heat exchanger 1, cleaning the dust on the surface of the heat exchanger 1, and enhancing the heat transfer effect of the equipment.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cleaning plate heat exchanger, comprising a heat exchanger (1), characterized in that: The heat exchanger (1) is fixedly connected to a plurality of input pipes (2) and output pipes on one side. A filter assembly is provided at one end of the input pipe (2), and a cleaning assembly is provided on the outer wall of the heat exchanger (1). The filter assembly includes multiple filter tubes (3), each filter tube (3) is slidably connected to the outer wall of the input tube (2), and each filter tube (3) is slidably connected to a connecting tube (6) at one end. The outer walls of the input tube (2) and the connecting tube (6) are fixedly connected to a fixing plate (5). Each filter tube (3) is fixedly connected to two sides of a connecting plate (4). Each connecting plate (4) is fixedly connected to two sides of a locking block (7). Each locking block (7) is provided with a connecting plate (14) on its outer wall. Each connecting plate (14) is slidably connected to multiple locking blocks (8) inside. The locking blocks (8) engage with the outer wall of the locking block (7). Each locking block (8) is provided with an angled sliding groove (9) inside. The outer wall of the locking block (8) is provided with an adjustment component, which is used to adjust the movement of the locking blocks (8).

2. The self-cleaning plate heat exchanger according to claim 1, characterized in that: The adjustment assembly includes multiple connecting rings (12), which are located on one side of the second card block (8). A filter screen is fixedly connected inside the filter tube (3), and a fixing post (15) is fixedly connected to both sides of each fixing plate (5).

3. A self-cleaning plate heat exchanger according to claim 2, characterized in that: Each of the fixed columns (15) is provided with a spring (13) on its outer wall. One end of the spring (13) is fixedly connected to a connecting ring (12), which is slidably connected to the outer wall of the fixed column (15). The other end of the spring (13) is fixedly connected to the outer wall of the fixed column (15).

4. A self-cleaning plate heat exchanger according to claim 3, characterized in that: Each of the connecting rings (12) is fixedly connected to one end of a plurality of connecting posts (10), and a slide bar (11) is fixedly connected between two adjacent connecting posts (10). The slide bar (11) is slidably connected to the inner wall of the oblique groove (9). Each of the connecting rings (12) is fixedly connected to the outer wall of a protective cylinder (16), and a transmission plate (17) is fixedly connected to the outer wall of the protective cylinder (16) on each side.

5. A self-cleaning plate heat exchanger according to claim 1, characterized in that: The cleaning assembly includes a cleaning plate (24) located on the outer wall of the heat exchanger (1). A fixing frame (18) is fixedly connected to one side of the heat exchanger (1). Multiple fixing strips (23) are fixedly connected to the inner wall of the fixing frame (18). A sliding seat (19) is slidably connected to the outer wall of the fixing frame (18).

6. A self-cleaning plate heat exchanger according to claim 5, characterized in that: The slide block (19) is slidably connected to a slider (20), and the slider (20) is fixedly connected to a motor (21).

7. A self-cleaning plate heat exchanger according to claim 6, characterized in that: The output end of the motor (21) is fixedly connected to a wheel (22), and the wheel (22) meshes with the fixing bar (23).

8. A self-cleaning plate heat exchanger according to claim 7, characterized in that: The outer wall of the slide (19) is fixedly connected to one side of the cleaning plate (24), and a fixing plate (25) is slidably connected to the other side of the cleaning plate (24). The outer wall of the fixing plate (25) is fixedly connected to the other side of the heat exchanger (1).

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