Efficient energy-saving plate heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses an efficient energy-saving plate heat exchanger which comprises a workbench, the inner walls of the lower portions of the front side and the rear side of the left end of the workbench are fixedly connected with shelving frames, the opposite sides of the inner walls of the shelving frames are slidably connected with pressing plates, and the opposite sides of the inner walls of the shelving frames are located at the left ends of the pressing plates and provided with a plurality of plate sheets. A displacement groove is formed in the inner wall of the middle of the right end of the workbench, a third motor is fixedly connected to the bottom end of the inner wall of the displacement groove, movable blocks are slidably connected to the front side and the rear side of the inner wall of the passing groove, first brush plates are fixedly connected to the left ends of the movable blocks, and placement grooves are formed in the left portions of the lower sides of the front end and the rear end of the workbench. And exhaust fans are fixedly connected to the inner walls of the placement grooves. According to the utility model, after dust at the edge of the plate is swept, the scattered dust can be sucked by negative pressure airflow near the air inlet, so that the dust is prevented from being attached to the edge of the plate again, and the cleaning effect is improved.

Description

High-efficiency and energy-saving plate heat exchanger Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a high-efficiency and energy-saving plate heat exchanger. Background Technology

[0002] Plate heat exchangers are made of corrugated metal plates stacked together, forming rectangular thin channels between the plates. Heat transfer is achieved through the plates, making them the preferred equipment for liquid-liquid and liquid-vapor heat exchange. They combine the advantages of high-efficiency heat exchange, low energy consumption, small footprint, and wide application, playing an important role in industrial and civil fields.

[0003] When plate heat exchangers are stacked and left undisturbed, dust will accumulate on their edges, requiring regular cleaning. However, some existing technologies use brushes to clean the edges of the plate heat exchangers, but the dust swept away by the brushes will scatter near the plate heat exchangers and easily re-adhere to the edges of the plate heat exchangers with airflow. Therefore, this cleaning method is generally ineffective and needs to be improved.

[0004] In order to improve the cleaning effect of the edges of plate heat exchangers when they are stacked, this application proposes a new high-efficiency and energy-saving plate heat exchanger. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency and energy-saving plate heat exchanger that prevents swept-off dust from re-adhering to the edges of the plates, thus improving the cleaning effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving plate heat exchanger, comprising a workbench, with a support frame fixedly connected to the lower inner wall of both the front and rear sides of the left end of the workbench; a pressure plate slidably connected to the inner wall of the support frame on opposite sides; several plates are arranged on the inner wall of the support frame on opposite sides at the left end of the pressure plate; a displacement groove is formed in the middle inner wall of the right end of the workbench; a motor is fixedly connected to the bottom of the inner wall of the displacement groove; a bidirectional screw is fixedly connected to the drive end of the motor; the top end of the bidirectional screw is rotatably connected to the top of the inner wall of the displacement groove; and the upper and lower sides of the outer wall of the bidirectional screw are... A retaining block is threadedly connected, and the outer wall of the retaining block is slidably connected to the inner wall of the displacement groove. A transition rod is rotatably connected to the left end of each retaining block, and a force-applying plate is rotatably connected to the other end of each transition rod. Support rods are fixedly connected to the four sides of the left end of each force-applying plate, and the other ends of each support rod are fixedly connected to the four sides of the right end of each pressure plate. A passage groove is opened on the inner wall of the worktable above the displacement groove. Movable blocks are slidably connected to the front and rear sides of the inner wall of the passage groove. A brush plate is fixedly connected to the left end of each movable block. A placement groove is opened on the lower left side of both the front and rear ends of the worktable, and an exhaust fan is fixedly connected to the inner wall of each placement groove.

[0007] Further description: Each exhaust fan input end is fixedly connected to an exhaust pipe, and the other end of each exhaust pipe passes through the left side of the workbench and is fixedly connected to a filter cylinder. Each filter cylinder is fixedly connected to an air inlet pipe, and the outer wall of each air inlet pipe has an air inlet corresponding to the upper side of the workbench. Here, the exhaust fan input end will generate a high-intensity negative pressure effect, which, through the extension of the pipe, causes airflow to enter the pipe from the air inlet far away from the exhaust fan.

[0008] Further description: An arc plate is provided on the inner wall of the middle part of the left end of the filter cylinder, and a filter plate is fixedly connected to the right side of the outer wall of the arc plate. The outer wall of the filter plate is in contact with the inner wall of the filter cylinder. Here, the curvature of the inner and outer walls of the arc plate is consistent with the curvature of the inner and outer walls of the filter cylinder.

[0009] Further description: A bidirectional screw is rotatably connected to the rear end of the inner wall of the passageway. The outer walls of the bidirectional screw are threaded to the inner walls of the movable blocks on the front and rear sides respectively. Here, the inner wall of the movable block is provided with a threaded surface, which matches the thread shape of the outer wall of the bidirectional screw.

[0010] Further description: A motor is fixedly connected to the front side of the workbench at the front of the passageway. The driving end of the motor penetrates the inner wall of the passageway and is fixedly connected to the front end of the bidirectional screw. Here, the threads on both sides of the outer wall of the bidirectional screw are in opposite directions, and the motor provides the driving force for the rotation of the bidirectional screw.

[0011] Further description: The inner wall of the workbench is provided with sliding grooves on both the front and rear sides below the passage groove. Connecting blocks are slidably connected to the inner wall of each sliding groove. A second brush plate is fixedly connected to the left end of each connecting block, and a linkage frame is fixedly connected to the right end of each connecting block. Here, one end of the second brush plate is respectively attached to the front and rear edges of the plate. Through the linkage frame, the connecting blocks on both sides can be kept moving up and down synchronously.

[0012] Further description: A threaded rod is rotatably connected to the top of the inner wall of the sliding groove on the front side, and the outer wall of the threaded rod is threadedly connected to the inner wall of the front connecting block; here, the inner wall of the front connecting block is provided with a threaded surface, which matches the thread shape of the outer wall of the threaded rod.

[0013] Further description: A second motor is fixedly connected to the bottom end of the inner wall of the sliding groove on the front side, and the driving end of the second motor is fixedly connected to the bottom end of the threaded rod; here, the second motor provides power for the rotation of the threaded rod.

[0014] Beneficial effects:

[0015] 1. In this utility model, through the cooperation of the passage groove, movable block, brush plate one, bidirectional screw one, motor one, sliding groove, connecting block, linkage frame, threaded rod, motor two, as well as the exhaust fan, exhaust pipe, filter cylinder, air inlet pipe, air inlet, arc plate, and filter plate, the dust on the edge of the plate is swept away and the scattered dust is sucked in by the negative pressure airflow near the air inlet. When the airflow carrying dust passes through the filter plate, the dust is filtered onto the surface of the filter plate, and the airflow continues to be discharged into the exhaust fan through the exhaust pipe and then discharged from the exhaust fan. This completes the cleaning of the edge of the plate and prevents dust from re-adhering to the edge of the plate, thus improving the cleaning effect.

[0016] 2. In this utility model, through the cooperation of motor three, bidirectional screw two, fixing block, adapter rod, force plate, support rod and pressure plate, the thrust applied by the adapter rod to the force plate can be evenly distributed on the four sides of the pressure plate surface, avoiding the pressure applied by the pressure plate to the plate being concentrated in one place, thereby ensuring that the force between the plates is more uniform, and thus effectively improving the service life of the plates. Attached Figure Description

[0017] Figure 1 is a front perspective view of the high-efficiency and energy-saving plate heat exchanger of this utility model;

[0018] Figure 2 is a rear perspective view of the high-efficiency and energy-saving plate heat exchanger of this utility model.

[0019] Figure 3 is a half-sectional view of the workbench of the high-efficiency energy-saving plate heat exchanger of this utility model.

[0020] Figure 4 is a cross-sectional view of the workbench of the high-efficiency and energy-saving plate heat exchanger of this utility model.

[0021] Figure 5 is a cross-sectional view of the filter cylinder of the high-efficiency energy-saving plate heat exchanger of this utility model.

[0022] In the diagram: 1. Workbench; 2. Sliding groove; 3. Displacement groove; 4. Passage groove; 5. Placement groove; 6. Exhaust fan; 7. Exhaust pipe; 8. Filter cartridge; 9. Air inlet pipe; 10. Arc plate; 11. Movable block; 12. Brush plate one; 13. Brush plate two; 14. Shelf; 15. Plate; 16. Pressure plate; 17. Double-direction screw one; 18. Motor one; 19. Connecting block; 20. Linkage frame; 21. Motor two; 22. Threaded rod; 23. Air inlet; 24. Motor three; 25. Double-direction screw two; 26. Fixing block; 27. Adapter rod; 28. Force plate; 29. ​​Support rod; 30. Filter plate. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] Please refer to Figures 1-2 and 4. The high-efficiency, energy-saving plate heat exchanger includes a workbench 1. A support frame 14 is fixedly connected to the lower inner wall of both the front and rear sides of the left end of the workbench 1. A pressure plate 16 is slidably connected to the opposite side of the inner wall of the support frame 14. Several plates 15 are arranged on the opposite side of the inner wall of the support frame 14 at the left end of the pressure plate 16. A displacement groove 3 is formed in the middle of the inner wall of the right end of the workbench 1. A motor 24 is fixedly connected to the bottom of the inner wall of the displacement groove 3. A bidirectional screw 25 is fixedly connected to the drive end of the motor 24. The top end of the bidirectional screw 25 is rotatably connected to the top of the inner wall of the displacement groove 3. A retaining block 26 is threadedly connected to both the upper and lower sides of the outer wall of the bidirectional screw 25. The outer wall of the retaining block 26 is slidably connected to the inner wall of the displacement groove 3. A transition rod 27 is rotatably connected to the left end of each retaining block 26. The other end of the transition rod 27 is rotatably connected to... There is a force-applying plate 28, and support rods 29 are fixedly connected to the four sides of the left end of the force-applying plate 28. The other end of the support rods 29 is fixedly connected to the four sides of the right end of the pressure plate 16. A passage groove 4 is opened on the inner wall of the worktable 1 above the displacement groove 3. Movable blocks 11 are slidably connected to the front and rear sides of the inner wall of the passage groove 4. A bidirectional screw 17 is rotatably connected to the rear end of the inner wall of the passage groove 4. The front and rear sides of the outer wall of the bidirectional screw 17 are threaded to the inner walls of the front and rear movable blocks 11. A motor 18 is fixedly connected to the front end of the worktable 1 at the front side of the passage groove 4. The drive end of the motor 18 passes through the inner wall of the passage groove 4 and is fixedly connected to the front end of the bidirectional screw 17. A brush plate 12 is fixedly connected to the left end of each movable block 11. A placement groove 5 is opened on the lower left side of both the front and rear ends of the worktable 1. A fan 6 is fixedly connected to the inner wall of each placement groove 5.

[0026] To further explain, firstly, the plates 15 are inserted sequentially between the two side shelves 14 to complete the basic placement. Then, the motor 24 is started, and its drive end drives the bidirectional screw 25 to rotate, causing the retaining blocks 26 on both sides of the outer wall of the bidirectional screw 25 to slide towards each other in the inner wall of the displacement groove 3. The retaining blocks 26 push the force plate 28 to move through the adapter rod 27. At the same time, multiple evenly distributed support rods 29 drive the pressure plate 16 to slide between the two side shelves 14 until the plates 15 are squeezed tightly and fit together. With the layout of the support rod 29, the thrust of the adapter rod 27 on the force-applying plate 28 can be evenly distributed to the four sides of the surface of the pressure plate 16, avoiding the pressure plate 16 from causing pressure concentration on the plate 15, ensuring that the plate 15 is subjected to uniform force, and effectively improving its service life. Then, the motor 18 is started, and its drive end drives the bidirectional screw 17 to rotate, causing the movable blocks 11 on both sides in the passage groove 4 to slide in opposite directions with the brush plate 12 until the opposite ends of the movable blocks 11 on both sides are in contact, and then the motor 18 stops running.

[0027] Example 2

[0028] Please refer to Figures 3 and 5. Based on Embodiment 1, the exhaust fan 6 is further equipped with an exhaust pipe 7 at its input end. The other end of the exhaust pipe 7 passes through the left side of the workbench 1 and is fixedly connected to a filter cylinder 8. The top of the filter cylinder 8 is fixedly connected to an air inlet pipe 9. The outer wall of the air inlet pipe 9 is provided with an air inlet 23 corresponding to the upper side of the workbench 1. The inner wall of the middle part of the left end of the filter cylinder 8 is provided with an arc plate 10. The right side of the outer wall of the arc plate 10 is fixedly connected to a filter plate 30. The outer wall of the filter plate 30 is in contact with the inner wall of the filter cylinder 8.

[0029] The inner wall of the workbench 1 is provided with sliding grooves 2 at both the front and rear sides below the passage groove 4. The inner wall of the sliding groove 2 is slidably connected with connecting blocks 19. The left end of the connecting block 19 is fixedly connected with a brush plate 23, and the right end of the connecting block 19 is fixedly connected with a linkage frame 20. The top of the inner wall of the front sliding groove 2 is rotatably connected with a threaded rod 22. The outer wall of the threaded rod 22 is threadedly connected to the inner wall of the front connecting block 19. The bottom end of the inner wall of the front sliding groove 2 is fixedly connected with a motor 21. The drive end of the motor 21 is fixedly connected to the bottom end of the threaded rod 22.

[0030] To further explain, when it is necessary to clean the dust on the outer edge of the plate 15, the motor 18 is restarted, causing its drive end to drive the bidirectional screw 17 to reverse. The movable blocks 11 on both sides slide the brush plate 12 in opposite directions. During the movement, the brush plate 12 sweeps the dust on the top of the plate 15 to both sides. At the same time, the exhaust fans 6 on both sides are started, and their input ends generate negative pressure airflow. This airflow is conducted through the exhaust pipe 7, filter cylinder 8, and air inlet pipe 9, so that the negative pressure airflow is distributed at the air inlet 23. Then, the dust swept out by the brush plate 12 falls near the air inlet 23 and is sucked into the air inlet pipe 9 by the negative pressure airflow. When the airflow passes through the filter plate 30, the filter screen filters and intercepts the dust. The airflow is then discharged by the exhaust fan 6 through the exhaust pipe 7.

[0031] Next, start motor 21, which drives the threaded rod 22 to rotate. The connecting block 19 with the threaded connection on its outer wall slides upward in the sliding groove 2. Through the linkage frame 20, it drives the connecting block 19 on the other side to move upward synchronously. The connecting blocks 19 on both sides drive the brush plate 2 13 to move upward, sweeping the dust on both sides of the plate 15 upward. When the brush plate 2 13 moves to the uppermost side of the plate 15, the dust falls to the vicinity of the air inlet 23 and is sucked in. When it passes through the filter plate 30 with the airflow, it is intercepted. The airflow is discharged through the exhaust pipe 7. After the cleaning work is completed, the arc plate 10 and the filter plate 30 are pulled out from the filter cylinder 8 and the dust on the surface of the filter plate 30 is cleaned to maintain the good flow effect of the filter screen.

[0032] Working principle: First, the plates 15 are inserted sequentially between the two side supports 14. Then, the motor 24 is started, causing its drive end to rotate the bidirectional screw 25. This causes the two retaining blocks 26 on the outer wall of the bidirectional screw 25 to slide in opposite directions within the inner wall of the displacement groove 3. Connected by the adapter rod 27, this pushes the force-applying plate 28 to move. Then, connected by multiple support rods 29, the pressure plate 16 slides between the two side supports 14 until the plates 15 are pressed together, making them tightly fitted. Furthermore, the even distribution of the support rods 29 ensures that the thrust applied by the adapter rod 27 to the force-applying plate 28 is evenly distributed across the four sides of the pressure plate 16 surface. To prevent the pressure applied by the pressure plate 16 to the plate 15 from concentrating in one place and to ensure more even force distribution between the plates 15, thus improving the service life of the plates 15, the motor 18 is then started, causing its drive end to rotate the bidirectional screw 17. This causes the movable blocks 11 on both sides of the passage groove 4 to slide threadedly with the brush plate 12 in opposite directions until the opposite ends of the movable blocks 11 are in contact. The motor 18 then stops. When it is necessary to clean the outer edge of the plate 15, the motor 18 is started again, causing its drive end to reverse the bidirectional screw 17. This causes the movable blocks 11 on both sides to slide threadedly with the brush plate 12 in opposite directions. As the brush plate 12 moves in opposite directions... This process sweeps the dust on the top of plate 15 to both sides. At the same time, the exhaust fans 6 on both sides are activated, generating negative pressure airflow at their input ends. Through the extension of the exhaust pipe 7, filter cylinder 8, and air inlet pipe 9, the negative pressure airflow is distributed at the air inlet 23, near the top of plate 15. At this time, the dust swept out by brush plate 12 will fall near the air inlet 23 and be sucked into the air inlet pipe 9 with the negative pressure airflow. Then, it will pass through the filter plate 30 along the airflow direction, and the dust in the airflow will be filtered by the filter screen inside the filter plate 30. After that, the airflow will be discharged through the exhaust pipe 7 and the exhaust fans 6. Then, the motor 21 is activated, causing its drive end to rotate with the threaded rod 22, which causes the connecting block with the threaded connection on its outer wall to rotate. 19 slides upward in the sliding groove 2, and moves upward synchronously with the connecting block 19 on the other side through the linkage frame 20. At this time, the connecting blocks 19 on both sides move upward with the brush plate 2 13. The brush plate 2 13 sweeps the dust on both sides of the plate 15 upward. When the brush plate 2 13 moves to the uppermost side of the plate 15, the dust will fall near the air inlet 23 and be sucked in. Then, when the dust continues to enter the filter plate 30 with the airflow, the dust is filtered on the surface of the filter plate 30. The airflow is discharged into the exhaust fan 6 through the exhaust pipe 7 and finally discharged. After the cleaning work is completed, the arc plate 10 and the filter plate 30 are pulled out from the filter cylinder 8 in order to clean the dust on the surface of the filter plate 30 and maintain the subsequent flow effect of the filter screen.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving plate heat exchanger, comprising a workbench (1), characterized in that: The workbench (1) has a shelf (14) fixedly connected to the lower inner wall of the front and rear sides on the left end. A pressure plate (16) is slidably connected to the inner wall of the shelf (14) on the opposite side. Several plates (15) are set on the opposite side of the inner wall of the shelf (14) at the left end of the pressure plate (16). The workbench (1) has a displacement groove (3) in the middle of the right end. A motor (24) is fixedly connected to the bottom of the inner wall of the displacement groove (3). A double-acting screw (25) is fixedly connected to the driving end of the motor (24). The top of the double-acting screw (25) is rotatably connected to the top of the inner wall of the displacement groove (3). The upper and lower sides of the outer wall of the double-acting screw (25) are threaded with retaining blocks (26). The outer wall of the retaining blocks (26) is slidably connected to the... The inner wall of the displacement groove (3) is rotatably connected to the left end of the fixed block (26) with a transition rod (27), and the other end of the transition rod (27) is rotatably connected to a force plate (28). The four sides of the left end of the force plate (28) are fixedly connected to support rods (29), and the other end of the support rods (29) is fixedly connected to the four sides of the right end of the pressure plate (16). The inner wall of the workbench (1) is provided with a passage groove (4) on the upper side of the displacement groove (3). The front and rear sides of the inner wall of the passage groove (4) are slidably connected to movable blocks (11). The left end of the movable blocks (11) is fixedly connected to a brush plate (12). The lower left side of the front and rear ends of the workbench (1) is provided with a placement groove (5), and the inner wall of the placement groove (5) is fixedly connected to an exhaust fan (6).

2. The high-efficiency energy-saving plate heat exchanger according to claim 1, characterized in that: The exhaust pipe (7) is fixedly connected to the input end of each exhaust fan (6). The other end of each exhaust pipe (7) passes through the left side of the workbench (1) and is fixedly connected to a filter cylinder (8). The top of each filter cylinder (8) is fixedly connected to an air inlet pipe (9). The outer wall of each air inlet pipe (9) is provided with an air inlet (23) corresponding to the upper side of the workbench (1).

3. The high-efficiency energy-saving plate heat exchanger according to claim 2, characterized in that: The inner wall of the left middle part of the filter cylinder (8) is provided with an arc plate (10), and the outer right side of the arc plate (10) is fixedly connected with a filter plate (30), and the outer wall of the filter plate (30) is in contact with the inner wall of the filter cylinder (8).

4. The high-efficiency energy-saving plate heat exchanger according to claim 1, characterized in that: The inner rear end of the passage groove (4) is rotatably connected to a bidirectional screw (17), and the outer sides of the bidirectional screw (17) are threaded to the inner walls of the front and rear movable blocks (11) on the front and rear sides respectively.

5. The high-efficiency energy-saving plate heat exchanger according to claim 1, characterized in that: The front end of the workbench (1) is fixedly connected to the front side of the passage groove (4) and the driving end of the motor (18) passes through the inner wall of the passage groove (4) and is fixedly connected to the front end of the bidirectional screw (17).

6. The high-efficiency energy-saving plate heat exchanger according to claim 1, characterized in that: The inner wall of the workbench (1) is provided with sliding grooves (2) on both the front and rear sides below the passage groove (4). The inner wall of the sliding groove (2) is slidably connected with connecting blocks (19). The left end of the connecting block (19) is fixedly connected with a brush plate (13), and the right end of the connecting block (19) is fixedly connected with a linkage frame (20).

7. The high-efficiency energy-saving plate heat exchanger according to claim 6, characterized in that: A threaded rod (22) is rotatably connected to the top of the inner wall of the sliding groove (2) on the front side, and the outer wall of the threaded rod (22) is threadedly connected to the inner wall of the connecting block (19) on the front side.

8. The high-efficiency energy-saving plate heat exchanger according to claim 6, characterized in that: The bottom of the inner wall of the sliding groove (2) on the front side is fixedly connected to a motor (21), and the driving end of the motor (21) is fixedly connected to the bottom of the threaded rod (22).

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