A tube bundle support structure for shell and tube heat exchanger

Abstract

The present application discloses a tube bundle support structure for a shell and tube heat exchanger, which belongs to the field of shell and tube heat exchangers, and includes a mounting plate, a support plate, a support block, a telescopic mechanism, and a tooth plate; a plurality of evenly distributed mounting holes are provided on one side of the mounting plate for installing the heat exchanger tube bundle, the support plate is installed on the back of the mounting plate through an elastic telescopic structure, there are a plurality of support blocks, and the support blocks are distributed in a circular array outside the circumference of the mounting plate, there are a plurality of telescopic mechanisms, and the telescopic mechanisms are respectively installed between the mounting plate and the support blocks, there are a plurality of tooth plates, and the tooth plates are distributed in a circular array and fixed to one end of the support plate. The entire disassembly and assembly process of the present application is very convenient, and there is no need to disassemble and assemble a large number of bolts. At the same time, the tube bundle is more stable inside the heat exchanger shell through the fixation of the support blocks and the support plates.

Description

Technical Field

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

[0002] Shell and tube heat exchanger is also called shell and tube heat exchanger. It is a wall heat exchanger that uses the wall of the tube bundle enclosed in the shell as the heat transfer surface. This heat exchanger has a simple structure, low cost, wide flow cross section, and is easy to clean scale; but the heat transfer coefficient is low and the floor space is large. It can be made of various structural materials (mainly metal materials), can be used under high temperature and high pressure, and is the most widely used type.

[0003] In the existing shell and tube heat exchanger, the internal tube bundle is generally fixedly installed on the inner wall of the heat exchanger shell through a supporting structure, and the installation method is to fix the connection by bolts. During the process of disassembly, cleaning and maintenance, a large number of bolts need to be disassembled and installed, and the operation is very cumbersome. Utility Model Content

[0004] One of the purposes of the present application is to provide a tube bundle support structure for a shell and tube heat exchanger to improve the convenience of disassembly and assembly of the tube bundle.

[0005] In order to achieve the above purpose, the technical solution adopted in the present application is: a tube bundle support structure of a shell and tube heat exchanger, comprising a mounting plate, a support plate, a support block, a telescopic mechanism and a tooth plate; a plurality of evenly distributed mounting holes are opened on one side of the mounting plate for mounting the tube bundle of the heat exchanger, the support plate is mounted on the back side of the mounting plate through an elastic telescopic structure, there are a plurality of support blocks, and the support blocks are distributed in an annular array outside the circumference of the mounting plate, there are a plurality of telescopic mechanisms, and the telescopic mechanisms are respectively mounted between the mounting plate and the support blocks, there are a plurality of tooth plates, and the tooth plates are in an annular array The support plate is distributed and fixed at one end of the support plate. In the installed state, the mounting plate and the support plate are inserted into the interior of the heat exchanger shell from one end of the heat exchanger shell, the support plate is against the inner wall of one end of the heat exchanger shell, the mounting plate approaches the support plate, the tooth plate drives the telescopic mechanism to extend through the linkage structure, and the support block is against the inner wall of the heat exchanger shell. In the disassembled state, the mounting plate and the support plate are pulled out from one end of the heat exchanger shell, the mounting plate is away from the support plate through the action of the telescopic mechanism, the tooth plate drives the telescopic mechanism to shrink through the linkage structure, and the support block is detached from the heat exchanger shell.

[0006] Preferably, the telescopic mechanism includes a cannula, a threaded rod and a gear. The cannula is installed in a circular array outside the circumference of the mounting plate. The cannula is rotatably connected to the mounting plate. The gear is fixedly installed on the top of the cannula. The threaded rod is threadedly connected to the inner wall of the cannula. The tooth plate and the gear are meshed with each other. A limiting mechanism is installed between the support block and the mounting plate.

[0007] Preferably, there are two groups of the limiting mechanisms, and the two groups of the limiting mechanisms are respectively installed on both sides of the bottom of the support block, the limiting mechanism includes a limiting tube and a limiting rod, the limiting rod is inserted into the limiting tube, one end of the limiting rod is fixedly connected to the support block, and one end of the limiting tube is fixedly connected to the mounting plate.

[0008] Preferably, the elastic telescopic structure includes a sleeve, an insertion rod and a buffer spring, the insertion rod is inserted into the sleeve, the buffer spring is fixedly installed between the insertion rod and the sleeve, one end of the insertion rod is fixedly connected to the support plate, and one end of the sleeve is fixedly connected to the mounting plate.

[0009] Preferably, a plurality of mounting grooves are provided outside the circumference of the support plate, and rollers are rotatably mounted in the mounting grooves.

[0010] Preferably, a first rubber pad is installed on a side of the support block away from the mounting plate, and a second rubber pad is installed on a side of the support plate away from the mounting plate.

[0011] Preferably, connecting rods distributed in a ring array are fixedly mounted on a side of the mounting plate away from the support plate.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] The utility model is provided with a mounting plate, a support plate and a telescopic mechanism. First, the tube bundle is inserted into the mounting hole respectively, and then the entire mounting plate and the support plate are inserted into the heat exchanger shell from one end of the heat exchanger shell until the support plate is against the inner wall of the other end of the heat exchanger shell, and then the sealing cover at one end of the heat exchanger shell is covered. The sealing cover continues to push the tube bundle toward the inside of the heat exchanger shell. In the process of tightening the sealing cover, the mounting plate will approach the support plate, and the gear will roll on the gear plate, thereby driving the plug to rotate, so that the threaded rod extends from the plug, thereby driving the support block to move, so that the support block is against the inner wall of the heat exchanger shell, and then the mounting plate is fixed; on the contrary, when the sealing cover at one end of the heat exchanger shell is removed, the support block is separated from the inner wall of the heat exchanger shell, and the entire tube bundle is pulled out from one end of the heat exchanger shell. The entire disassembly and assembly process is very convenient, and there is no need to disassemble and assemble a large number of bolts. At the same time, through the fixation of the support block and the support plate, the tube bundle is more stable inside the heat exchanger shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a partial enlarged view of the utility model.

[0016] Figure 3 It is a schematic diagram of the back structure of the support plate of the utility model.

[0017] Figure 4 It is a schematic diagram of the telescopic mechanism of the utility model.

[0018] Figure 5 It is a cross-sectional view of the cannula and the gear of the utility model.

[0019] Figure 6 It is a cross-sectional view of the sleeve of the utility model.

[0020] In the figure: 1. mounting plate; 101. mounting hole; 2. support plate; 201. roller; 3. sleeve; 301. insertion rod; 302. buffer spring; 4. support block; 401. first rubber pad; 5. connecting rod; 6. insertion tube; 601. threaded rod; 602. gear; 603. tooth plate; 604. limit tube; 605. limit rod; 7. second rubber pad. DETAILED DESCRIPTION

[0021] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0024] One of the preferred embodiments of the present application is as follows: Figures 1 to 6As shown, a tube bundle support structure of a shell and tube heat exchanger includes a mounting plate 1, a support plate 2, a support block 4, a telescopic mechanism and a tooth plate 603; a plurality of evenly distributed mounting holes 101 are opened on one side of the mounting plate 1 for mounting the tube bundle of the heat exchanger, the support plate 2 is mounted on the back of the mounting plate 1 through an elastic telescopic structure, there are a plurality of support blocks 4, and the support blocks 4 are distributed in a circular array outside the circumference of the mounting plate 1, there are a plurality of telescopic mechanisms, and the telescopic mechanisms are respectively mounted between the mounting plate 1 and the support block 4, there are a plurality of tooth plates 603, and the tooth plates 603 are in a circular array Distributed and fixed at one end of the support plate 2, installed state: the mounting plate 1 and the support plate 2 are inserted into the interior of the heat exchanger shell from one end of the heat exchanger shell, the support plate 2 is against the inner wall of one end of the heat exchanger shell, the mounting plate 1 approaches the support plate 2, the tooth plate 603 drives the telescopic mechanism to extend through the linkage structure, and the support block 4 is against the inner wall of the heat exchanger shell, disassembled state: the mounting plate 1 and the support plate 2 are pulled out from one end of the heat exchanger shell, the mounting plate 1 is away from the support plate 2 through the action of the telescopic mechanism, the tooth plate 603 drives the telescopic mechanism to shrink through the linkage structure, and the support block 4 is separated from the heat exchanger shell.

[0025] It can be understood that the tube bundles are first inserted into the mounting holes 101 respectively, and then the entire mounting plate 1 and the support plate 2 are inserted into the heat exchanger shell from one end of the heat exchanger shell until the support plate 2 is against the inner wall of the other end of the heat exchanger shell, and then the sealing cover at one end of the heat exchanger shell is covered, and the sealing cover continues to push the tube bundle toward the inside of the heat exchanger shell. In the process of tightening the sealing cover, the mounting plate 1 will approach the support plate 2. At this time, the tooth plate 603 drives the telescopic mechanism to extend through the linkage structure, and the support block 4 is against the inner wall of the heat exchanger shell. After the sealing cover of the heat exchanger is tightened, the mounting plate 1 is also fixed by the support block 4.

[0026] In this embodiment, Figures 1 to 6 As shown, the telescopic mechanism includes an insert tube 6, a threaded rod 601 and a gear 602. The insert tube 6 is installed outside the circumference of the mounting plate 1 in an annular array. The insert tube 6 is rotatably connected to the mounting plate 1. The gear 602 is fixedly installed on the top of the insert tube 6. The threaded rod 601 is threadedly connected to the inner wall of the insert tube 6. The tooth plate 603 and the gear 602 are meshed with each other. A limiting mechanism is installed between the support block 4 and the mounting plate 1. There are two groups of limiting mechanisms, and the two groups of limiting mechanisms are respectively installed on both sides of the bottom of the support block 4. The limiting mechanism includes a limiting tube 604 and a limiting rod 605. The limiting rod 605 is inserted into the limiting tube 604. One end of the limiting rod 605 is fixedly connected to the support block 4, and one end of the limiting tube 604 is fixedly connected to the mounting plate 1. The elastic telescopic structure includes a sleeve 3, an insertion rod 301 and a buffer spring 302. The insertion rod 301 is inserted into the sleeve 3, and the buffer spring 302 is fixedly installed between the insertion rod 301 and the sleeve 3. One end of the insertion rod 301 is fixedly connected to the support plate 2, and one end of the sleeve 3 is fixedly connected to the mounting plate 1.

[0027] It can be understood that, in the process of the mounting plate 1 approaching the support plate 2, the gear 602 will roll on the tooth plate 603, thereby driving the insert tube 6 to rotate, causing the threaded rod 601 to extend from the insert tube 6, thereby driving the support block 4 to move, causing the support block 4 to rest against the inner wall of the heat exchanger shell, thereby fixing the mounting plate 1.

[0028] In this embodiment, Figures 1 to 3 As shown, a first rubber pad 401 is installed on the side of the support block 4 away from the mounting plate 1, and a second rubber pad 7 is installed on the side of the support plate 2 away from the mounting plate 1; the first rubber pad 401 and the second rubber pad 7 respectively provide buffer protection for the support block 4 and the support plate 2 to prevent the support block 4 and the support plate 2 from causing wear to the inner wall of the heat exchanger shell.

[0029] In this embodiment, Figure 1 As shown, connecting rods 5 distributed in a circular array are fixedly installed on one side of the mounting plate 1 away from the supporting plate 2; one end of the connecting rod 5 is connected to a sealing cover at one end of the heat exchanger shell, and when the sealing cover is opened, the entire heat exchanger tube bundle can be pulled out.

[0030] In this embodiment, Figure 3 As shown, a plurality of mounting grooves are provided outside the circumference of the support plate 2, and rollers 201 are rotatably installed in the mounting grooves. When the support plate 2 is inserted and pulled into the heat exchanger shell, the rollers 201 will roll on the inner wall of the heat exchanger shell, thereby improving the convenience of inserting and pulling the support plate 2 and the mounting plate 1.

[0031] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A tube bundle support structure for a shell and tube heat exchanger, characterized in that: include: A mounting plate (1); a plurality of evenly distributed mounting holes (101) are provided on one side of the mounting plate (1) for mounting a heat exchanger tube bundle; A support plate (2); the support plate (2) is mounted on the back side of the mounting plate (1) via an elastic telescopic structure; Support block (4); there are a plurality of support blocks (4), and the support blocks (4) are distributed in a circular array outside the circumference of the mounting plate (1); Telescopic mechanism; There are multiple groups of telescopic mechanisms, and the telescopic mechanisms are respectively installed between the mounting plate (1) and the support block (4); and Tooth plate (603); the tooth plates (603) are multiple, and the tooth plates (603) are distributed in a ring array and fixed on one end of the support plate (2); Installation state: the installation plate (1) and the support plate (2) are inserted into the interior of the heat exchanger shell from one end of the heat exchanger shell, the support plate (2) abuts against the inner wall of one end of the heat exchanger shell, the installation plate (1) approaches the support plate (2), the tooth plate (603) drives the telescopic mechanism to extend through the linkage structure, and the support block (4) abuts against the inner wall of the heat exchanger shell; Disassembled state: the mounting plate (1) and the support plate (2) are pulled out from one end of the heat exchanger shell, the mounting plate (1) is moved away from the support plate (2) by the action of the telescopic mechanism, the tooth plate (603) drives the telescopic mechanism to contract through the linkage structure, and the support block (4) is detached from the heat exchanger shell.

2. The tube bundle support structure of a shell and tube heat exchanger according to claim 1, characterized in that: The telescopic mechanism comprises a plug (6), a threaded rod (601) and a gear (602); the plug (6) is installed in a circular array outside the circumference of the mounting plate (1); the plug (6) is rotatably connected to the mounting plate (1); the gear (602) is fixedly installed on the top of the plug (6); the threaded rod (601) is connected to the inner wall of the plug (6) by threads; the tooth plate (603) and the gear (602) are meshed with each other; and a limiting mechanism is installed between the support block (4) and the mounting plate (1).

3. The tube bundle support structure of a shell and tube heat exchanger according to claim 2, characterized in that: There are two groups of the limiting mechanisms, and the two groups of the limiting mechanisms are respectively installed on both sides of the bottom of the support block (4), and the limiting mechanisms include a limiting tube (604) and a limiting rod (605), the limiting rod (605) is inserted into the limiting tube (604), one end of the limiting rod (605) is fixedly connected to the support block (4), and one end of the limiting tube (604) is fixedly connected to the mounting plate (1).

4. The tube bundle support structure of a shell and tube heat exchanger according to claim 3, characterized in that: The elastic telescopic structure comprises a sleeve (3), an insertion rod (301) and a buffer spring (302); the insertion rod (301) is inserted into the sleeve (3); the buffer spring (302) is fixedly installed between the insertion rod (301) and the sleeve (3); one end of the insertion rod (301) is fixedly connected to the support plate (2); and one end of the sleeve (3) is fixedly connected to the mounting plate (1).

5. The tube bundle support structure of a shell and tube heat exchanger according to claim 1, characterized in that: A plurality of mounting grooves are provided outside the circumference of the support plate (2), and rollers (201) are rotatably mounted in the mounting grooves.

6. The tube bundle support structure of a shell and tube heat exchanger according to claim 1, characterized in that: A first rubber pad (401) is installed on a side of the support block (4) away from the mounting plate (1), and a second rubber pad (7) is installed on a side of the support plate (2) away from the mounting plate (1).

7. The tube bundle support structure of a shell and tube heat exchanger according to claim 1, characterized in that: Connecting rods (5) distributed in a ring array are fixedly mounted on one side of the mounting plate (1) away from the support plate (2).

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