Tube bundle supporting structure of shell-and-tube heat exchanger

Abstract

The utility model provides a tube bundle supporting structure of a shell-and-tube heat exchanger, and belongs to the technical field of shell-and-tube heat exchangers. The tube bundle supporting structure of the shell-and-tube heat exchanger comprises a shell, a fixing plate, a supporting plate and an adjusting mechanism, the adjusting mechanism comprises a first lead screw, a first limiting rod, a sliding block and a rotating rod, and the first lead screw is rotationally connected with the fixing plate through a bearing; the first limiting rod is fixedly connected between the inner walls of the fixing plates; the sliding block is in threaded connection with the first lead screw, and the sliding block is in sliding connection with the first limiting rod; the rotary rod is rotationally connected with the sliding block and the supporting plate, the rotary knob drives the first lead screw to rotate by rotating the rotary knob, the sliding block slides along the first limiting rod under the limitation of the first limiting rod, the sliding block drives the supporting plate to descend through the rotary rod, and then the tube bundle is installed on the supporting plate. And then the knob is rotated reversely to drive the supporting plate to ascend to lift the tube bundle to a mounting position, the shell is prevented from being collided, and the heat exchange tube bundle is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of shell and tube heat exchangers, in particular to a tube bundle supporting structure of a shell and tube heat exchanger. Background Art

[0002] The shell and tube heat exchanger consists of a shell, a heat exchange tube bundle, a tube sheet, a baffle (baffle) and a tube box. The shell is mostly cylindrical with a tube bundle inside. Both ends of the tube bundle are fixed on the tube sheet. One of the hot and cold fluids for heat exchange flows inside the tube, called the tube-side fluid; the other flows outside the tube, called the shell-side fluid. In order to increase the heat transfer coefficient of the fluid outside the tube, several baffles are usually installed in the shell. The baffles can increase the shell-side fluid velocity, forcing the fluid to pass through the tube bundle horizontally for multiple times along a specified distance, thereby enhancing the turbulence of the fluid. The heat exchange tubes can be arranged in an equilateral triangle or square on the tube sheet. The equilateral triangle arrangement is more compact, the turbulence of the fluid outside the tube is high, and the heat transfer coefficient is large; the square arrangement is convenient for cleaning the outside of the tube, and is suitable for fluids that are prone to scaling.

[0003] However, since the heat exchange tube bundle is generally long, the heat exchange tube bundle needs to be supported when assembling the heat exchange tube bundle and the outer shell. The installation position of the heat exchange tube bundle is fixed and relatively compact. It is easy to collide with the shell during installation, causing damage to the heat exchange tube bundle. Therefore, we propose a tube bundle support structure for a shell and tube heat exchanger to solve the above problem. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a tube bundle support structure of a shell and tube heat exchanger which overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model provides a tube bundle supporting structure of a shell and tube heat exchanger, comprising

[0006] The housing, the fixing plate and the supporting plate are provided with an adjusting mechanism between the fixing plate and the supporting plate. The adjusting mechanism includes

[0007] A first screw rod, wherein the first screw rod is rotatably connected to the fixed plate via a bearing;

[0008] A first limiting rod, wherein the first limiting rod is fixedly connected between inner walls of the fixing plate;

[0009] A slider, wherein the slider is threadedly connected to the first screw rod, and the slider is slidably connected to the first limit rod;

[0010] A rotating rod is rotatably connected to the slider and the support plate.

[0011] In a preferred solution, one end of the first screw rod is fixedly connected to a knob, and the knob is provided with an anti-slip protrusion.

[0012] In a preferred solution, a sleeve is fixedly connected to the top of the fixing plate, a support rod is fixedly connected to the bottom of the support plate, and the support rod is slidably connected to the inner wall of the sleeve.

[0013] In a preferred solution, a mounting plate is fixedly connected to the inner wall of the shell, two mounting plates are provided, the mounting plate is rotatably connected to a second screw rod via a bearing, and a second limiting rod is fixedly connected between the two mounting plates.

[0014] In a preferred solution, the second screw rod is threadedly connected to a sliding block, the sliding block is slidably connected to the second limiting rod, and the top of the sliding block is fixedly connected to the bottom of the fixed plate.

[0015] In a preferred solution, one end of the second screw rod is fixedly connected to a turntable, and a side of the turntable away from the second screw rod is fixedly connected to a turning handle.

[0016] In a preferred solution, a limiting mechanism is provided on the top of the support plate, and two limiting mechanisms are provided, and the two limiting mechanisms are symmetrically arranged front to back.

[0017] In a preferred solution, the limiting mechanism comprises a connecting plate, a rectangular plate and a limiting block are fixedly connected to the top of the connecting plate, and a connecting rod is slidably connected to the rectangular plate.

[0018] In a preferred solution, one end of the connecting rod is fixedly connected to a limit plate, a spring is fixedly connected between the limit plate and the rectangular plate, and the connecting rod is rotatably connected to a handle.

[0019] The utility model provides a tube bundle support structure for a shell and tube heat exchanger, and its beneficial effects include:

[0020] 1. By turning the knob, the knob drives the first screw rod to rotate. Under the restriction of the first limit rod, the slider slides along the first limit rod, the slider drives the rotating rod to rotate, and the rotating rod drives the support plate to descend. After the tube bundle is installed on the support plate, the knob is reversed to drive the support plate to rise and lift the tube bundle to the installation position to prevent collision with the shell and avoid damage to the heat exchange tube bundle.

[0021] 2. Pull the handle outward, the handle drives the connecting rod to slide outward, the connecting rod drives the limit plate to slide outward and compress the spring, then turn the handle to clamp the handle on the limit block, and then install the tube bundle on the support plate, contact the limit of the handle and release the handle, the spring resets, so that the limit plate approaches the tube bundle, limits the tube bundle, and prevents the tube bundle from moving when installing it. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present 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 creative work.

[0023] Figure 1 It is a three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0024] Figure 2 A schematic diagram of a cross-sectional structure of a housing provided in an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the structure of the fixing plate and the supporting plate provided in the embodiment of the utility model;

[0026] Figure 4 A schematic diagram of the structure of the limiting mechanism provided in the embodiment of the utility model;

[0027] In the figure: 1. shell; 2. adjustment mechanism; 201. first screw rod; 202. first limiting rod; 203. slider; 204. rotating rod; 205. knob; 3. limiting mechanism; 301. connecting plate; 302. rectangular plate; 303. connecting rod; 304. limiting plate; 305. spring; 306. handle; 307. limiting block; 4. fixing plate; 5. supporting plate; 6. mounting plate; 7. second screw rod; 8. second limiting rod; 9. sliding block; 10. turntable; 11. turning handle; 12. sleeve; 13. supporting rod. DETAILED DESCRIPTION

[0028] 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.

[0029] Reference Figure 1-Figure 4The utility model provides a technical solution: a tube bundle support structure of a shell and tube heat exchanger, comprising a shell 1, a fixed plate 4 and a support plate 5, an adjustment mechanism 2 is arranged between the fixed plate 4 and the support plate 5, the adjustment mechanism 2 comprises a first screw rod 201, a first limit rod 202, a slider 203 and a rotating rod 204, the first screw rod 201 is rotatably connected to the fixed plate 4 through a bearing; the first limit rod 202 is fixedly connected between the inner walls of the fixed plate 4; the slider 203 is threadedly connected to the first screw rod 201, and the slider 203 is slidably connected to the first limit rod 202; the rotating rod 204 is connected to the slider 203 and The support plates 5 are all rotatably connected, and one end of the first screw rod 201 is fixedly connected with a knob 205, and an anti-skid protrusion is arranged on the knob 205. By rotating the knob 205, the knob 205 drives the first screw rod 201 to rotate, and under the restriction of the first limit rod 202, the slider 203 slides along the first limit rod 202, and the slider 203 drives the rotating rod 204 to rotate, and the rotating rod 204 drives the support plate 5 to descend, and then the tube bundle is installed on the support plate 5, and then the knob 205 is reversed to drive the support plate 5 to rise and raise the tube bundle to the installation position, so as to prevent collision with the shell 1 and avoid damage to the heat exchange tube bundle;

[0030] The top of the fixed plate 4 is fixedly connected with a sleeve 12, and the bottom of the support plate 5 is fixedly connected with a support rod 13, and the support rod 13 is slidably connected to the inner wall of the sleeve 12. The sleeve 12 and the support rod 13 are provided to support and limit the support plate 5 and assist the movement of the support plate 5;

[0031] The inner wall of the shell 1 is fixedly connected with a mounting plate 6, and two mounting plates 6 are provided. The mounting plate 6 is rotatably connected with a second screw rod 7 through a bearing. A second limiting rod 8 is fixedly connected between the two mounting plates 6. The second screw rod 7 is threadedly connected with a sliding block 9. The sliding block 9 is slidably connected with the second limiting rod 8. The top of the sliding block 9 is fixedly connected with the bottom of the fixed plate 4. A turntable 10 is fixedly connected to one end of the second screw rod 7. A turning handle 11 is fixedly connected to the side of the turntable 10 away from the second screw rod 7. By turning the turning handle 11, the turning handle 11 drives the turntable 10 to rotate, and the turntable 10 drives the second screw rod 7 to rotate. Under the restriction of the second limiting rod 8, the sliding block 9 slides along the second limiting rod 8, and the sliding block 9 drives the support plate 5 to move. When installing the tube bundle, the support plate 5 is moved to the opening of the shell 1. After the installation is closed, the support plate 5 is moved to the inside of the shell 1, so as to facilitate the installation and disassembly of the tube bundle.

[0032] A limiting mechanism 3 is provided on the top of the support plate 5. Two limiting mechanisms 3 are provided. The two limiting mechanisms 3 are symmetrically arranged front and back. The limiting mechanism 3 includes a connecting plate 301. A rectangular plate 302 and a limiting block 307 are fixedly connected to the top of the connecting plate 301. The rectangular plate 302 is slidably connected to a connecting rod 303. One end of the connecting rod 303 is fixedly connected to a limiting plate 304. A spring 305 is fixedly connected between the limiting plate 304 and the rectangular plate 302. The connecting rod 303 is rotatably connected to a handle 30 6. By pulling the handle 306 outward, the handle 306 drives the connecting rod 303 to slide outward, and the connecting rod 303 drives the limiting plate 304 to slide outward and compress the spring 305. Then, the handle 306 is turned to clamp the handle 306 on the limiting block 307. After the tube bundle is installed on the support plate 5, the limit of the handle 306 is contacted and the handle 306 is released. The spring 305 is reset, so that the limiting plate 304 is close to the tube bundle, and the tube bundle is limited to prevent the tube bundle from moving when the tube bundle is installed.

[0033] Specifically, the working process or working principle of the tube bundle support structure of the shell and tube heat exchanger is as follows: the staff turns the handle 11, the handle 11 drives the turntable 10 to rotate, the turntable 10 drives the second screw rod 7 to rotate, and under the restriction of the second limit rod 8, the sliding block 9 slides along the second limit rod 8, the sliding block 9 drives the support plate 5 to move, and when installing the tube bundle, the support plate 5 is moved to the opening of the shell 1, and then the knob 205 is turned, the knob 205 drives the first screw rod 201 to rotate, and under the restriction of the first limit rod 202, the slider 203 slides along the first limit rod 202, the slider 203 drives the rotating rod 204 to rotate, and the rotating rod 204 drives the support plate 5 to descend.

[0034] Then pull the handle 306 outward, the handle 306 drives the connecting rod 303 to slide outward, the connecting rod 303 drives the limit plate 304 to slide outward and compress the spring 305, and then turn the handle 306 to clamp the handle 306 on the limit block 307, and then after the tube bundle is installed on the support plate 5, contact the limit of the handle 306 and release the handle 306, the spring 305 is reset, so that the limit plate 304 is close to the tube bundle, and the tube bundle is limited, and then the reverse knob 205 drives the support plate 5 to rise and lift the tube bundle to the installation position, and finally reverse the handle 11 to move the support plate 5 to the inside of the shell 1.

Claims

1. A tube bundle support structure for a shell and tube heat exchanger, characterized in that: The invention comprises a housing (1), a fixing plate (4) and a supporting plate (5), wherein an adjusting mechanism (2) is arranged between the fixing plate (4) and the supporting plate (5), and the adjusting mechanism (2) comprises A first screw rod (201), the first screw rod (201) being rotatably connected to the fixing plate (4) via a bearing; A first limiting rod (202), the first limiting rod (202) being fixedly connected between the inner walls of the fixing plate (4); A slider (203), wherein the slider (203) is threadedly connected to the first screw rod (201), and the slider (203) is slidably connected to the first limit rod (202); A rotating rod (204) is rotatably connected to the slider (203) and the support plate (5).

2. The tube bundle support structure of a shell and tube heat exchanger according to claim 1, characterized in that: One end of the first screw rod (201) is fixedly connected to a knob (205), and an anti-slip protrusion is provided on the knob (205).

3. The tube bundle support structure of a shell and tube heat exchanger according to claim 2, characterized in that: The top of the fixed plate (4) is fixedly connected to a sleeve (12), the bottom of the support plate (5) is fixedly connected to a support rod (13), and the support rod (13) is slidably connected to the inner wall of the sleeve (12).

4. The tube bundle support structure of a shell and tube heat exchanger according to claim 3, characterized in that: A mounting plate (6) is fixedly connected to the inner wall of the housing (1), two mounting plates (6) are provided, the mounting plate (6) is rotatably connected to a second screw rod (7) via a bearing, and a second limiting rod (8) is fixedly connected between the two mounting plates (6).

5. The tube bundle support structure of a shell and tube heat exchanger according to claim 4, characterized in that: The second screw rod (7) is threadedly connected to a sliding block (9), the sliding block (9) is slidably connected to the second limiting rod (8), and the top of the sliding block (9) is fixedly connected to the bottom of the fixed plate (4).

6. The tube bundle support structure of a shell and tube heat exchanger according to claim 5, characterized in that: One end of the second screw rod (7) is fixedly connected to a rotating disk (10), and a side of the rotating disk (10) away from the second screw rod (7) is fixedly connected to a turning handle (11).

7. The tube bundle support structure of a shell and tube heat exchanger according to claim 6, characterized in that: A limiting mechanism (3) is arranged on the top of the support plate (5), and two limiting mechanisms (3) are arranged, and the two limiting mechanisms (3) are symmetrically arranged front and back.

8. The tube bundle support structure of a shell and tube heat exchanger according to claim 7, characterized in that: The limiting mechanism (3) comprises a connecting plate (301), the top of which is fixedly connected to a rectangular plate (302) and a limiting block (307), and the rectangular plate (302) is slidably connected to a connecting rod (303).

9. The tube bundle support structure of a shell and tube heat exchanger according to claim 8, characterized in that: One end of the connecting rod (303) is fixedly connected to a limiting plate (304), a spring (305) is fixedly connected between the limiting plate (304) and the rectangular plate (302), and the connecting rod (303) is rotatably connected to a handle (306).

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