Connection protection mechanism for shell-and-tube heat exchanger

Abstract

The utility model provides a connection protection mechanism for a shell-and-tube heat exchanger, and belongs to the technical field of shell-and-tube heat exchangers. The connecting protection mechanism for the shell-and-tube heat exchanger comprises a shell and a clamping protection mechanism, end sockets are installed on the two sides of the shell, flange plates are installed on the two sides of the shell and the surfaces of the end sockets, bolts are installed in the flange plates, a supporting frame is movably connected to the left side of the shell, and movable wheels are fixedly connected to the bottom of the supporting frame; the protection frame is movably connected to the left sides of the top and the bottom of the end socket, and the outer side of the protection frame is movably connected with a sliding frame through a sliding rail. External liquid and moisture are prevented from being in direct contact with the flange plate and the bolt, so that the bolt and the flange plate are prevented from being rusted and loosened, and the mounting and connecting stability of the flange plate and the bolt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shell and tube heat exchangers, in particular to a connection protection mechanism for shell and tube heat exchangers. Background Art

[0002] Shell and tube heat exchanger is a common heat exchange equipment, widely used in chemical, petroleum, pharmaceutical, food processing and other industrial fields. Its main function is to transfer heat between two media, usually transferring heat from high-temperature medium to low-temperature medium, or transferring heat from one medium to another. Shell and tube heat exchanger consists of shell, head and tube bundle. Shell: The shell is a closed container that wraps the internal tube bundle, which is used to load heat source fluid and cooling fluid and maintain the stability of the heat exchange process between the two. Head: The tube bundle is usually connected to both sides of the shell through the head, which is used to support and fix the tube bundle and ensure that the medium can effectively exchange heat between the inside and outside of the tube bundle. Tube bundle: The tube bundle is a series of tubes in the shell for the flow of heat source fluid or cooling fluid. The tube bundle is usually made of stainless steel, copper alloy or other corrosion-resistant materials to ensure safe and effective heat conduction to the fluid. Since the head and the shell are mainly connected by flange and bolts, it is necessary to protect the connection between the head and the shell.

[0003] In the related art, during the use of a shell and tube heat exchanger, a heat source fluid flows in a tube bundle, and a cooled medium flows in a shell. Heat transfer between the two media is completed through the tube wall, thereby performing heat exchange.

[0004] However, during the current use of shell and tube heat exchangers, since the flanges and bolts at the connection between the head and the shell are directly exposed to the outside, they are easily corroded by external liquids and moisture, causing looseness between the head and the shell, affecting the stability of the connection between the head and the shell. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a connection protection mechanism for a shell and tube heat exchanger that overcomes the above technical problems or at least partially solves the above problems.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a connection protection mechanism for a shell and tube heat exchanger, comprising a shell, both sides of the shell are equipped with heads, both sides of the shell and the surface of the heads are equipped with flanges, and bolts are installed inside the flanges;

[0008] A clamping and protection mechanism, the clamping and protection mechanism comprising:

[0009] Support frame; the support frame is movably connected to the left side of the shell, and the bottom of the support frame is fixedly connected with a movable wheel;

[0010] Protection frame; the protection frame is movably connected to the left side of the top and bottom of the head, the outer side of the protection frame is movably connected to the sliding frame through a sliding rail, and the inner sides of the protection frame and the sliding frame are fixedly connected with rubber strips;

[0011] Connecting seat; the connecting seat is movably connected to both sides of the sliding frame, a connecting groove is provided on the inner side of the connecting seat, and both sides of the sliding frame are fixedly connected with connecting blocks located inside the connecting groove;

[0012] Lifting and pre-positioning mechanism; the lifting and positioning mechanism is arranged on the inner side of the support frame.

[0013] In a preferred embodiment, the lifting pre-positioning mechanism includes a lifting slot, a lifting seat, a magnetic strip and a fixed strip. The lifting slot is opened on the inner side of the support frame. The sliding connection of the lifting seat is inside the lifting slot. The inner side of the lifting seat is fixedly connected to the outer side of the connecting seat. The magnetic strip is embedded in both sides of the lifting slot. The fixed strip is embedded in both sides of the lifting seat. The outer side of the fixed strip is magnetically connected to the inner side of the magnetic strip.

[0014] In a preferred solution, a clamping plate is movably connected to the outer side of the support frame, a rotating hole is provided on the inner side of the clamping plate, and a rotating handle is rotatably connected to the inner side of the rotating hole.

[0015] In a preferred solution, a screw groove is provided on the outer side of the lifting seat, a screw rod is connected to the inner thread of the screw groove, and the outer side of the screw rod is fixedly connected to the inner side of the rotating handle.

[0016] In a preferred solution, a movable opening located outside the lifting seat is opened on the inner side of the lifting slot, and the screw rod passes through the supporting frame through the movable opening.

[0017] In a preferred solution, the top and bottom of both sides of the support frame are movably connected to a translation seat located outside the connection seat, the inner side of the translation seat is fixedly connected to a rubber seat, and the inner side of the rubber seat contacts the outer side of the slide frame.

[0018] In a preferred embodiment, the movable opening is internally movably connected to a synchronization rod, the inner side of the synchronization rod is fixedly connected to the outer side of the translation seat, the outer side of the top of the synchronization rod is fixedly connected to a triangular seat, and the outer side of the triangular seat is fixedly connected to the inner side of the clamping plate.

[0019] In a preferred solution, a stabilizing groove is formed on the inner wall of the rotating hole, a stabilizing ring is rotatably connected inside the stabilizing groove, and the inner side of the stabilizing ring is fixedly connected to the surface of the rotating handle.

[0020] The utility model provides a connection protection mechanism for a shell and tube heat exchanger, and its beneficial effects include:

[0021] 1. By setting up a clamping protection mechanism, when the flange works with the head and the shell through bolts, the flange and the bolts can be clamped and surrounded for protection, preventing external liquid and moisture from directly contacting the flange and the bolts, causing the bolts and the flange to rust and loosen, thereby improving the installation and connection stability of the flange and the bolts.

[0022] 2. By setting up a lifting and pre-positioning mechanism, when the connecting seat is used with the sliding frame, the lifting and magnetic pre-positioning work between the support frame and the sliding frame can be performed through the connecting seat, so as to avoid the situation where it is difficult to pre-position the sliding frame when using it, resulting in a more cumbersome installation and use of the sliding frame, thereby improving the convenience of using the sliding frame.

[0023] 3. By providing a clamping plate and a turning handle, when the lifting seat is used in conjunction with the sliding frame through the connecting seat, the connecting seat can be clamped and positioned by the lifting seat to avoid the situation where the connecting seat is difficult to position when used, thereby improving the convenience of positioning the connecting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is an overall stereogram provided by the embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a protection frame provided in an embodiment of the utility model;

[0027] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a support frame provided in an embodiment of the utility model;

[0028] Figure 4 A schematic diagram of a three-dimensional cross-sectional structure of a connecting seat provided in an embodiment of the utility model;

[0029] In the figure: 1. Shell; 2. Head; 3. Flange; 4. Bolt; 5. Support frame; 6. Movable wheel; 7. Protection frame; 8. Sliding frame; 9. Rubber strip; 10. Connecting seat; 11. Connecting groove; 12. Connecting block; 13. Lifting groove; 14. Lifting seat; 15. Magnetic strip; 16. Fixing strip; 17. Clamping plate; 18. Rotating hole; 19. Rotating handle; 20. Screw groove; 21. Screw; 22. Movable opening; 23. Translation seat; 24. Rubber seat; 25. Synchronous rod; 26. Triangular seat; 27. Stable groove; 28. Stable ring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example

[0032] Reference Figure 1-Figure 4 The utility model provides a technical solution: a connection protection mechanism for a shell and tube heat exchanger, including a shell 1 and a clamping protection mechanism, a head 2 is installed on both sides of the shell 1, a flange 3 is installed on both sides of the shell 1 and the surface of the head 2, a bolt 4 is installed inside the flange 3, and after the flange 3 cooperates with the bolt 4 to install and connect the head 2 and the shell 1, the flange 3 and the bolt 4 can be surrounded and clamped for protection, so as to avoid the flange 3 and the bolt 4 being exposed to the outside and rusted and loosened due to the influence of liquid and moisture during the working process, thereby improving the installation and connection stability of the Farah plate and the bolt 4 to the head 2 and the shell 1.

[0033] Reference Figure 1-Figure 4In a preferred embodiment, the clamping protection mechanism includes a support frame 5, which is movably connected to the left side of the shell 1, and a movable wheel 6 is fixedly connected to the bottom of the support frame 5. The protection frame 7 is movably connected to the left side of the top and bottom of the head 2. The outer side of the protection frame 7 is movably connected to a sliding frame 8 through a slide rail. The inner sides of the protection frame 7 and the sliding frame 8 are fixedly connected with rubber strips 9. The connecting seat 10 is movably connected to both sides of the sliding frame 8. A connecting groove 11 is provided on the inner side of the connecting seat 10. Both sides of the sliding frame 8 are fixedly connected with connecting blocks 12 located inside the connecting groove 11. The lifting and positioning mechanism is arranged on the inner side of the support frame 5. When the flange 3 cooperates with the bolts 4 to install and connect the head 2 and the shell 1, the support frame 5 cooperates with the movable wheel 6 to push the sliding frame 8 and the protection frame 7 to move to the outside of the flange 3, and then push the sliding frame 8 to drive the protection frame 7 to move to the outside of the farad plate. At this time, the rubber strips 9 on the inner sides of the protection frame 7 and the sliding frame 8 are respectively connected to the shell 1 and the surface of the head 2. The lifting and lowering pre-positioning mechanism comprises a lifting and lowering groove 13, a lifting and lowering seat 14, a magnetic strip 15 and a fixing strip 16. The lifting and lowering groove 13 is arranged on the inner side of the supporting frame 5. The sliding connection of the lifting and lowering seat 14 is arranged inside the lifting and lowering groove 13. The inner side of the lifting and lowering seat 14 is fixedly connected with the outer side of the connecting seat 10. The magnetic strip 15 is embedded in both sides of the lifting and lowering groove 13. The fixing strip 16 is embedded in both sides of the lifting and lowering seat 14. The outer side of the fixing strip 16 is magnetically connected with the inner side of the magnetic strip 15. When the connecting seat 10 is used in conjunction with the sliding frame 8, the lifting and lowering magnetic suction pre-positioning work can be performed between the supporting frame 5 and the sliding frame 8 through the connecting seat 10, so as to avoid the difficulty in pre-positioning and determining the position of the sliding frame 8 when the sliding frame 8 is used, which makes the installation and use of the sliding frame 8 more complicated, thereby improving the convenience of using the sliding frame 8.

[0034] Reference Figure 3-Figure 4 In a preferred embodiment, a clamping plate 17 is movably connected to the outer side of the support frame 5, a rotating hole 18 is provided on the inner side of the clamping plate 17, and a rotating handle 19 is rotatably connected to the inner side of the rotating hole 18. When the lifting seat 14 is used in conjunction with the sliding frame 8 through the connecting seat 10, the connecting seat 10 can be clamped and positioned through the lifting seat 14 to avoid the situation where the connecting seat 10 is difficult to position when in use, thereby improving the convenience of positioning the connecting seat 10. A screw groove 20 is provided on the outer side of the lifting seat 14, and a screw rod 21 is connected to the inner thread of the screw groove 20. The outer side of the screw rod 21 is fixedly connected to the inner side of the rotating handle 19, which can provide translation force and clamping force for the clamping plate 17 when the clamping plate 17 is used in conjunction with the connecting seat 10, thereby avoiding the situation where the clamping plate 17 is difficult to clamp and position when in use, thereby improving the clamping positioning effect of the clamping plate 17.

[0035] Reference Figure 3-Figure 4In a preferred embodiment, an active opening 22 located on the outer side of the lifting seat 14 is opened on the inner side of the lifting groove 13, and the screw rod 21 passes through the support frame 5 through the active opening 22. When the screw rod 21 is used in conjunction with the clamping plate 17, a movable space for the screw rod 21 to pass through the support frame 5 is provided, thereby avoiding the situation where the screw rod 21 is difficult to follow the movement of the lifting seat 14 to cooperate with the clamping plate 17 when in use, thereby improving the flexibility of the use of the screw rod 21. The top and bottom of both sides of the support frame 5 are movably connected with a translation seat 23 located on the outer side of the connecting seat 10, and the inner side of the translation seat 23 is fixedly connected with a rubber seat 24. The inner side of the rubber seat 24 contacts the outer side of the sliding frame 8. When the clamping plate 17 is used in conjunction with the connecting seat 10, the sliding frame 8 can be pressed and positioned with the help of the clamping force of the clamping plate 17, thereby avoiding the situation where the sliding frame 8 is difficult to position when in use, thereby improving the convenience of positioning the sliding frame 8.

[0036] Reference Figure 3-Figure 4 In a preferred embodiment, a synchronization rod 25 is movably connected inside the movable opening 22, the inner side of the synchronization rod 25 is fixedly connected to the outer side of the translation seat 23, the outer side of the top of the synchronization rod 25 is fixedly connected to a triangular seat 26, and the outer side of the triangular seat 26 is fixedly connected to the inner side of the clamping plate 17. When the clamping plate 17 is used in conjunction with the translation seat 23, the connection between the clamping seat and the translation seat 23 can be synchronized to avoid the situation where the clamping plate 17 is difficult to cooperate with the translation seat 23 when working. This improves the synchronization in the use of the clamping plate 17 and the translation seat 23. A stabilizing groove 27 is opened on the inner wall of the rotating hole 18. A stabilizing ring 28 is rotatably connected inside the stabilizing groove 27. The inner side of the stabilizing ring 28 is fixedly connected to the surface of the rotating handle 19. When the rotating handle 19 is used in conjunction with the clamping plate 17 and the screw rod 21, stabilization work can be performed between the rotating handle 19 and the clamping plate 17 to avoid sliding of the rotating handle 19 and the screw rod 21 when the clamping plate 17 is used. Therefore, the stability of the use of the clamping plate 17 is improved.

[0037] Specifically, the working process or working principle of the connection protection mechanism for the shell and tube heat exchanger is as follows: when in use, the protection frame 7 and the sliding frame 8 are moved to the outside of the Farah plate by the support frame 5 in cooperation with the movable wheel 6, and then the protection frame 7 is moved toward the flange 3 by the sliding frame 8. At this time, the rubber strip 9 follows the movement of the protection frame 7 and the sliding frame 8 and contacts the surface of the head 2 and the shell 1. At the same time, the protection frame 7 and the sliding frame 8 above and below the Farah plate are closed to form a circular ring surrounding the Farah plate and the outside of the bolt 4. At this time, the connection seat 10 drives the lifting The lowering seat 14 moves inside the lifting groove 13. When the protective frame 7 and the sliding frame 8 are closed, the magnetic strip 15 cooperates with the fixing strip 16 to magnetically pre-position the sliding frame 8 through the lifting seat 14 and the connecting seat 10. At the same time, the connecting seat 10 drives the clamping plate 17 to follow the sliding frame 8 to move outside the support frame 5 through the screw groove 20, the screw rod 21 and the rotating handle 19. Subsequently, according to the actual thickness of the Farah disc and the bolt 4 after the connection between the head 2 and the shell 1 is installed, the protective frame 7 and the sliding frame 8 are pushed toward the bolt 4 respectively, so that the protective frame 7 contacts the inner side of the slide frame 8 and the outer side of the bolt 4, and clamps and surrounds the Farah disk and the bolt 4. During this process, the connecting block 12 follows the slide frame 8 to move inside the connecting groove 11, and performs a sliding connection between the slide frame 8 and the connecting seat 10. Subsequently, the hand-held turning handle 19 drives the screw rod 21 to rotate and cooperate with the screw groove 20 to apply a translational pressing force to the pressing plate 17, so that the pressing plate 17 performs a pressing and positioning work between the lifting seat 14, the connecting seat 10 and the support frame 5, so that the slide frame 8 and the protective frame 7 are located between the flange 3 and the screw. The bolt 4 remains in a closed and surrounded state. At this time, the stabilizing ring 28 rotates inside the stabilizing groove 27 following the turning handle 19, and performs stabilizing work between the clamping plate 17 and the turning handle 19. At the same time, the clamping plate 17 drives the translation seat 23 and the rubber seat 24 to move synchronously with the surface of the sliding frame 8 through the synchronization rod 25 and the triangular seat 26 to contact and tighten with the surface of the sliding frame 8, and performs a clamping and positioning work on the sliding frame 8, so that the sliding frame 8 cooperates with the protective frame 7 and the rubber strip 9 to clamp and surround the Farah and the bolt 4 for protection, thereby ensuring the connection stability of the connection between the head 2 and the shell 1.

Claims

1. A connection protection mechanism for a shell and tube heat exchanger, comprising a shell (1), a head (2) installed on both sides of the shell (1), flanges (3) installed on both sides of the shell (1) and the surface of the head (2), bolts (4) installed inside the flange (3), characterized in that ； A clamping and protection mechanism, the clamping and protection mechanism comprising: A support frame (5); the support frame (5) is movably connected to the left side of the housing (1), and a movable wheel (6) is fixedly connected to the bottom of the support frame (5); A protective frame (7); the protective frame (7) is movably connected to the left side of the top and bottom of the head (2); the outer side of the protective frame (7) is movably connected to a sliding frame (8) via a sliding rail; the inner sides of the protective frame (7) and the sliding frame (8) are fixedly connected to a rubber strip (9); A connecting seat (10); the connecting seat (10) is movably connected to two sides of the sliding frame (8); a connecting groove (11) is provided on the inner side of the connecting seat (10); and connecting blocks (12) located inside the connecting groove (11) are fixedly connected to both sides of the sliding frame (8); A lifting and pre-positioning mechanism; the lifting and pre-positioning mechanism is arranged on the inner side of the support frame (5).

2. A connection protection mechanism for a shell and tube heat exchanger according to claim 1, characterized in that: The lifting pre-positioning mechanism comprises a lifting groove (13), a lifting seat (14), a magnetic strip (15) and a fixed strip (16); the lifting groove (13) is arranged on the inner side of the support frame (5); the lifting seat (14) is slidably connected to the inside of the lifting groove (13); the inner side of the lifting seat (14) is fixedly connected to the outer side of the connecting seat (10); the magnetic strip (15) is embedded in both sides of the lifting groove (13); the fixed strip (16) is embedded in both sides of the lifting seat (14); the outer side of the fixed strip (16) is magnetically connected to the inner side of the magnetic strip (15).

3. A connection protection mechanism for a shell and tube heat exchanger according to claim 2, characterized in that: The outer side of the support frame (5) is movably connected to a clamping plate (17), the inner side of the clamping plate (17) is provided with a rotating hole (18), and the interior of the rotating hole (18) is rotatably connected to a rotating handle (19).

4. A connection protection mechanism for a shell and tube heat exchanger according to claim 3, characterized in that: A screw groove (20) is provided on the outer side of the lifting seat (14), a screw rod (21) is connected to the inner thread of the screw groove (20), and the outer side of the screw rod (21) is fixedly connected to the inner side of the rotating handle (19).

5. A connection protection mechanism for a shell and tube heat exchanger according to claim 4, characterized in that: The inner side of the lifting groove (13) is provided with a movable opening (22) located outside the lifting seat (14), and the screw rod (21) passes through the movable opening (22) and penetrates the support frame (5).

6. A connection protection mechanism for a shell and tube heat exchanger according to claim 5, characterized in that: The top and bottom of both sides of the support frame (5) are movably connected to a translation seat (23) located outside the connection seat (10), and the inner side of the translation seat (23) is fixedly connected to a rubber seat (24), and the inner side of the rubber seat (24) is in contact with the outer side of the slide frame (8).

7. A connection protection mechanism for a shell and tube heat exchanger according to claim 6, characterized in that: The movable opening (22) is movably connected to a synchronous rod (25) inside, the inner side of the synchronous rod (25) is fixedly connected to the outer side of the translation seat (23), the outer side of the top of the synchronous rod (25) is fixedly connected to a triangular seat (26), and the outer side of the triangular seat (26) is fixedly connected to the inner side of the clamping plate (17).

8. A connection protection mechanism for a shell and tube heat exchanger according to claim 7, characterized in that: The inner wall of the rotating hole (18) is provided with a stabilizing groove (27), the interior of the stabilizing groove (27) is rotatably connected with a stabilizing ring (28), and the inner side of the stabilizing ring (28) is fixedly connected to the surface of the rotating handle (19).

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