Efficient shell-and-tube heat exchanger

Abstract

The utility model relates to the technical field of heating ventilation air conditioners, and discloses an efficient shell-and-tube heat exchanger which comprises a shell, protective shells are fixedly connected to the front side and the rear side of the shell, moving rods are slidably connected to the left sides of the two protective shells, and pushing blocks are fixedly connected to the right sides of the moving rods. A first moving plate is fixedly connected to the right side of the pushing block, limiting blocks are slidably connected to the upper side and the lower side of the right side of the first moving plate, second moving plates are fixedly connected to the sides, away from each other, of the two limiting blocks, a protective cover is slidably connected to the outer portion of the first moving plate, and a force application block is fixedly connected to the front side of the protective cover. The rear side of the protective cover is fixedly connected with a sealing assembly used for the interior. According to the device, the moving rod moves, so that the pushing block moves, the limiting plate is fixed opposite to the first moving plate, the connecting shell and the outer shell are fixed, and therefore the header and the main shell are rapidly fixed.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning technology, and in particular to a high-efficiency shell-and-tube heat exchanger. Background Technology

[0002] Shell-and-tube heat exchangers in central air conditioning systems are key components consisting of a shell, tube bundles, and tube sheets. They contain two fluids at different temperatures: one flowing through the tubes and the other through the shell. The pursuit of high efficiency in shell-and-tube heat exchangers is crucial because it allows for rapid and thorough heat exchange during cooling or heating. Essentially, a heat exchanger is a device that transfers heat from a hot fluid to a cold fluid. In central air conditioning, its role is to regulate refrigerant temperature through heat transfer. Working in conjunction with the compressor and throttling devices, it creates a complete cycle, thereby efficiently controlling indoor temperature and humidity to create a comfortable indoor environment for users, reduce energy consumption, and improve operational economy.

[0003] In high-efficiency shell-and-tube heat exchangers, fluids at different temperatures flow in the tube side and shell side respectively. Relying on the temperature difference between the two, heat is conducted from the high-temperature fluid to the low-temperature fluid through the tube wall, which has good thermal conductivity. When the fluids inside and outside the tubes flow, due to the temperature difference with the tube wall, heat transfer is mainly by conduction in the boundary layer and mainly by convection outside the layer. At the same time, by setting baffles, adding fins and other special structures and technologies, the heat transfer process is enhanced, greatly improving the heat exchange efficiency.

[0004] In existing technologies, high-efficiency shell-and-tube heat exchangers use bolts to fix and disassemble the manifold and main shell. The bolts need to be tightened one by one during installation and loosened one by one during disassembly. This process is particularly time-consuming and labor-intensive for large shell-and-tube heat exchangers, which reduces the efficiency of equipment maintenance and repair. Therefore, a high-efficiency shell-and-tube heat exchanger is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency shell-and-tube heat exchanger, aiming to improve the existing technology that uses bolts to fix and disassemble the manifold and main shell. The bolt connections need to be tightened one by one during installation and loosened one by one during disassembly. Especially for large shell-and-tube heat exchangers with a large number of bolts, this process consumes a lot of time and labor costs, reducing the efficiency of equipment maintenance and repair.

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

[0007] A high-efficiency shell-and-tube heat exchanger includes an outer shell, with protective shells fixedly connected to both the front and rear sides of the outer shell. A movable rod is slidably connected to the left side of each of the two protective shells. A pushing block is fixedly connected to the right side of each movable rod. A movable plate is fixedly connected to the right side of each pushing block. Limiting blocks are slidably connected to the upper and lower sides of the right side of the movable plate. A movable plate is fixedly connected to the far side of each of the two limiting blocks. A protective cover is slidably connected to the outside of the movable plate. A force-applying block is fixedly connected to the front side of the protective cover. An internal sealing assembly is fixedly connected to the rear side of the protective cover.

[0008] As a further description of the above technical solution:

[0009] The sealing assembly includes a connecting shell, the front side of which is fixedly connected to the rear side of the protective cover. A fixing plate 1 is fixedly connected to the inner wall of the connecting shell. Fixing plates 2 are fixedly connected to both the front and rear sides of the fixing plate 1. A force-applying plate is fixedly connected to the left side of each of the two fixing plates 2. A base plate is fixedly connected to the inner wall of the outer shell. An outer ring is fixedly connected to the outside of the base plate. A sealing ring is fixedly connected to the inner wall of the outer shell.

[0010] As a further description of the above technical solution:

[0011] A fixing block 1 is fixedly connected to the left side of the movable rod, and the right side of the fixing block 1 contacts the left side of the protective shell as the movable rod moves. Two fixing blocks 2 are fixedly connected to the bottom of the shell.

[0012] As a further description of the above technical solution:

[0013] The upper and lower sides of the push block are fixedly connected to the fixing plate three, and the right side of the two fixing plates three is fixedly connected to the spring two. The right side of the spring two is fixedly connected to the inner wall of the right side of the protective shell.

[0014] As a further description of the above technical solution:

[0015] A guide plate is slidably connected to the rear side of the push block, and the rear side of the guide plate is fixedly connected to the rear inner wall of the protective shell.

[0016] As a further description of the above technical solution:

[0017] The left and right sides of the force-applying block are fixedly connected to movable plates three, the inner wall of the protective cover is fixedly connected to guide plates two, and the outside of the movable plates two is slidably connected to the inside of the guide plates two.

[0018] As a further description of the above technical solution:

[0019] A spring is fixedly connected to the rear side of each of the two movable plates three, and the rear side of the spring is fixedly connected to the front side of the guide plate.

[0020] As a further description of the above technical solution:

[0021] The right side of the substrate is in contact with the left side of the force-applying plate, and the left side of the outer ring is in contact with the right side of the sealing ring.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the moving rod moves, thereby moving the pushing block, which in turn moves the moving plate, thereby fixing the limiting plate against the moving plate, thus fixing the connecting shell and the outer shell, thereby achieving rapid fixing of the manifold and the main shell. In addition, it can significantly shorten the installation time of the high-efficiency shell-and-tube heat exchanger, thereby improving installation efficiency and accelerating the overall project progress.

[0024] 2. In this utility model, the fixed plate moves, thereby driving the force plate to move, which in turn drives the outer ring to move, thereby squeezing the sealing ring, thus achieving a seal between the manifold and the main shell. In addition, it can effectively prevent media leakage, avoid resource waste and environmental pollution, and thus ensure the operating efficiency and safety of the heat exchanger. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency shell-and-tube heat exchanger proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the fixing plate structure of a high-efficiency shell-and-tube heat exchanger proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the moving plate structure of a high-efficiency shell-and-tube heat exchanger proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the substrate structure of a high-efficiency shell-and-tube heat exchanger proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Protective shell; 3. Moving rod; 4. Pushing block; 5. Moving plate one; 6. Protective cover; 7. Guide plate one; 8. Limiting block; 9. Moving plate two; 10. Force-applying block; 11. Moving plate three; 12. Spring one; 13. Connecting shell; 14. Fixing plate one; 15. Fixing plate two; 16. Force-applying plate; 17. Base plate; 18. Outer ring; 19. Sealing ring; 20. Fixing plate three; 21. Spring two; 22. Fixing block one; 23. Fixing block two. Detailed Implementation

[0031] 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.

[0032] Reference Figure 2 and Figure 3 This utility model provides an embodiment of a high-efficiency shell-and-tube heat exchanger, including an outer shell 1, which protects the internal heat exchanger. Protective shells 2 are fixedly connected to both the front and rear sides of the outer shell 1, protecting the internal disassembly components. Moving rods 3 are slidably connected to the left sides of both protective shells 2, receiving external force and thus moving. A pushing block 4 is fixedly connected to the right side of the moving rod 3, and a moving plate 5 is fixedly connected to the right side of the pushing block 4. Limiting blocks 8 are slidably connected to the upper and lower sides of the right side of the moving plate 5, with the two limiting blocks 8 being spaced apart. A movable plate 2 9 is fixedly connected to each side. A protective cover 6 is slidably connected to the outside of the movable plate 1 5. A force-applying block 10 is fixedly connected to the front side of the protective cover 6. The pushing block 4 receives the moving force of the movable rod 3 and moves accordingly, thereby driving the movable plate 1 5 to move. The limiting plate limits the movable plate 1 5 to make it stable. The movable plate 2 9 is fixed with the limiting block 8. The protective cover 6 is a protective and internal disassembly component. The force-applying block 10 applies force to the movable plate 2 9, thereby driving the limiting block 8 to disengage from the movable plate 1 5. A sealing component for the inside is fixedly connected to the rear side of the protective cover 6.

[0033] Reference Figure 2 and Figure 4 The sealing assembly includes a connecting shell 13, the front side of which is fixedly connected to the rear side of the protective cover 6. The connecting shell 13 is connected to the outer shell 1. A fixing plate 14 is fixedly connected to the inner wall of the connecting shell 13. The fixing plate 14 separates the inlet pipe and the outlet pipe. Fixing plates 15 are fixedly connected to both the front and rear sides of the fixing plate 14. A force-applying plate 16 is fixedly connected to the left side of each of the two fixing plates 15. A base plate 17 is fixedly connected to the inner wall of the outer shell 1. An outer ring 18 is fixedly connected to the outside of the base plate 17. A sealing ring 19 is fixedly connected to the inner wall of the outer shell 1. The fixing plate 15 receives the movement of the fixing plate 14. The force-applying plate 16 applies force to the base plate 17, thereby moving it and driving the outer ring 18 to move. The sealing ring 19 reduces the gap.

[0034] Reference Figures 1 to 3A fixed block 22 is fixedly connected to the left side of the moving rod 3. The right side of the fixed block 22 contacts the left side of the protective shell 2 as the moving rod 3 moves. The fixed block 22 receives external force, thereby driving the moving rod 3 to move. Two fixed blocks 23 are fixedly connected to the bottom of the outer shell 1. The fixed blocks 23 support the outer shell 1 and make it stable. Fixed plates 30 are fixedly connected to the upper and lower sides of the pushing block 4. The fixed plates 30 receive the moving force of the pushing block 4 and thus move. Springs 21 are fixedly connected to the right side of the two fixed plates 30. The right side of the springs 21 is fixedly connected to the right inner wall of the protective shell 2. The springs 21 receive the force of the fixed plates 30 and thus move. A guide plate 7 is slidably connected to the rear side of the pushing block 4. The rear side of the guide plate 7 is fixedly connected to the rear inner wall of the protective shell 2. The push block 4 is limited to linear motion. Movable plates 3 11 are fixedly connected to both sides of the force-applying block 10. The movable plates 3 11 move with the force of the force-applying block 10. The inner wall of the protective cover 6 is fixedly connected to the guide plate 2. The outer side of the movable plate 2 9 is slidably connected to the inside of the guide plate 2. The guide plate 2 moves linearly toward the movable plate 2 9. Spring 1 12 is fixedly connected to the rear side of both movable plates 3 11. The rear side of spring 1 12 is fixedly connected to the front side of the guide plate. Spring 1 12 receives the force of the movable plates 3 11 and stores elastic force. The right side of the base plate 17 is in contact with the left side of the force-applying plate 16. The left side of the outer ring 18 is in contact with the right side of the sealing ring 19. The force-applying plate 16 drives the base plate 17 to move. The outer ring 18 receives the force of the base plate 17 and thus drives the sealing ring 19 to move.

[0035] Working principle: The operator moves the fixed block 22, which in turn moves the moving rod 3, which in turn moves the pushing block 4, which in turn moves the moving plate 5. This causes the spring 21 to compress, thus limiting the limit plate against the moving plate 9. At this time, the outer shell 1 and the connecting shell 13 are fixed. When disassembly is required, the operator pushes the force-applying block 10, which moves the moving plate 11, causing the spring 12 to compress, thus moving the moving plate 9. This causes the limit block 8 to disengage from the moving plate 5. At this time, the spring 21 releases its elasticity, causing the moving plate 5 to return to its original position. This achieves rapid fixing of the manifold and the main shell. In addition, it can significantly shorten the installation time of the high-efficiency shell-and-tube heat exchanger, thereby improving installation efficiency and accelerating the overall project progress.

[0036] When the connecting shell 13 and the outer shell 1 are fixed, the fixing plate 14 moves, which in turn moves the force-applying plate 16, which in turn moves the base plate 17, which in turn pressurizes the outer ring 18 and the sealing ring 19, thus sealing the sealing ring 19 against the sealing opening. This achieves a seal between the manifold and the main shell, effectively preventing media leakage, avoiding resource waste and environmental pollution, and ensuring the operating efficiency and safety of the heat exchanger.

[0037] 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 high-efficiency shell-and-tube heat exchanger, comprising a shell (1), characterized in that: Protective shells (2) are fixedly connected to both the front and rear sides of the outer shell (1). Moving rods (3) are slidably connected to the left sides of the two protective shells (2). Pushing blocks (4) are fixedly connected to the right side of the moving rods (3). Moving plate one (5) is fixedly connected to the right side of the pushing blocks (4). Limiting blocks (8) are slidably connected to the upper and lower sides of the right side of the moving plate one (5). Moving plate two (9) is fixedly connected to the far side of the two limiting blocks (8). Protective cover (6) is slidably connected to the outside of the moving plate one (5). Force block (10) is fixedly connected to the front side of the protective cover (6). Sealing components for the interior are fixedly connected to the rear side of the protective cover (6).

2. The high-efficiency shell-and-tube heat exchanger according to claim 1, characterized in that: The sealing assembly includes a connecting shell (13), the front side of which is fixedly connected to the rear side of the protective cover (6), a fixing plate (14) is fixedly connected to the inner wall of the connecting shell (13), a fixing plate (15) is fixedly connected to both the front and rear sides of the fixing plate (14), a force-applying plate (16) is fixedly connected to the left side of both fixing plates (15), a base plate (17) is fixedly connected to the inner wall of the outer shell (1), an outer ring (18) is fixedly connected to the outside of the base plate (17), and a sealing ring (19) is fixedly connected to the inner wall of the outer shell (1).

3. The high-efficiency shell-and-tube heat exchanger according to claim 1, characterized in that: A fixing block 1 (22) is fixedly connected to the left side of the moving rod (3). The right side of the fixing block 1 (22) contacts the left side of the protective shell (2) under the movement of the moving rod (3). Two fixing blocks 2 (24) are fixedly connected to the bottom of the outer shell (1).

4. The high-efficiency shell-and-tube heat exchanger according to claim 1, characterized in that: The upper and lower sides of the push block (4) are fixedly connected to the fixing plate three (20), and the right side of the two fixing plates three (20) is fixedly connected to the spring two (21). The right side of the spring two (21) is fixedly connected to the inner wall of the right side of the protective shell (2).

5. A high-efficiency shell-and-tube heat exchanger according to claim 1, characterized in that: The rear side of the push block (4) is slidably connected to a guide plate (7), and the rear side of the guide plate (7) is fixedly connected to the rear inner wall of the protective shell (2).

6. A high-efficiency shell-and-tube heat exchanger according to claim 1, characterized in that: The force-applying block (10) is fixedly connected to the left and right sides of the movable plate three (11), and the inner wall of the protective cover (6) is fixedly connected to the guide plate two. The outer side of the movable plate two (9) is slidably connected to the inside of the guide plate two.

7. A high-efficiency shell-and-tube heat exchanger according to claim 6, characterized in that: Spring 1 (12) is fixedly connected to the rear side of each of the two movable plates 3 (11), and the rear side of spring 1 (12) is fixedly connected to the front side of the guide plate.

8. A high-efficiency shell-and-tube heat exchanger according to claim 2, characterized in that: The right side of the substrate (17) is in contact with the left side of the force-applying plate (16), and the left side of the outer ring (18) is in contact with the right side of the sealing ring (19).

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