Tube bundle supporting structure of tube type heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and particularly discloses a tube bundle supporting structure of a tube type heat exchanger, which comprises two supporting plates, and U-shaped frames are fixedly mounted on the outer walls of the tops of the two supporting plates; the multiple buffering and damping mechanisms are distributed at equal intervals and fixedly installed on the inner wall of the bottom of the U-shaped frame, supporting blocks are fixed to the outer walls of the tops of the buffering and damping mechanisms, and the surfaces of the supporting blocks are in an arc shape; after the tube bundle is impacted, kinetic energy brought by impact is converted into elastic potential energy for compression of the buffer spring, then damping force formed by the damping liquid counteracts the elastic potential energy, the elastic potential energy is converted into heat energy to be dissipated, the amplitude of the buffer spring is rapidly attenuated, and the buffer rod rapidly tends to be stable in the buffer cylinder. Therefore, the stability of the tube bundle is ensured, the tube bundle is prevented from being damaged, and the normal use of the tube bundle is ensured.

Description

Technical Field

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

[0002] The shell-and-tube heat exchanger is the most widely used heat exchanger in chemical and alcohol production. It is mainly composed of an outer shell, tube sheet, heat exchange tubes, heads, baffles, etc. The tube bundle of the shell-and-tube heat exchanger is placed inside the heat exchanger, and its outer side is wrapped by the outer shell, and then a shell-and-tube heat exchanger tube bundle support structure is needed to provide support.

[0003] However, the existing support structure has some problems when in use. The support structure provides support for the tube bundle, but cannot buffer and reduce the force applied to the tube bundle. As a result, after the tube bundle is impacted by external force, the impact force cannot be quickly removed, causing damage to the tube bundle and affecting the subsequent use of the tube bundle.

[0004] To this end, those skilled in the art have proposed a tube bundle support structure for a shell-and-tube heat exchanger to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a tube bundle supporting structure of a shell-and-tube heat exchanger to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tube bundle support structure for a shell-and-tube heat exchanger, comprising:

[0008] Two support plates, each of which has a U-shaped frame fixedly mounted on its top outer wall;

[0009] A buffer and shock absorbing mechanism, wherein a plurality of the buffer and shock absorbing mechanisms are equidistantly distributed and fixedly installed on the bottom inner wall of the U-shaped frame, and a support block is fixed on the top outer wall of the buffer and shock absorbing mechanism, and the surface of the support block is arc-shaped;

[0010] The outer shell is fixedly mounted on the top outer walls of the two support blocks, and the interior of the outer shell is wrapped with a tube bundle.

[0011] Preferably, a strip groove is opened upward in the middle of the outer walls on both sides of the U-shaped frame, baffles are fixedly installed on the other two outer walls of the U-shaped frame, and the support block is slidably connected to the inner walls on both sides of the U-shaped frame and one inner wall of the two baffles.

[0012] Preferably, limiting mechanisms are fixedly installed on both side outer walls of the support block, the limiting mechanisms are located inside the strip groove, and limiting plates are fixedly installed on both sides of the top outer wall of the U-shaped frame.

[0013] Preferably, the limiting mechanism includes a slider, which is fixedly mounted on an outer wall of one side of the support block, and an outer wall of one side of the slider is slidably clamped on the inner wall of the strip groove, and a card plate is fixedly mounted on one end of the slider, and the card plate is attached to the outer wall of the U-shaped frame, and the limiting plate is located above the card plate and the slider.

[0014] Preferably, the buffer shock-absorbing mechanism includes a second pad, which is fixedly mounted on the bottom inner wall of the U-shaped frame, a buffer cylinder is fixedly mounted on the top outer wall of the second pad, an oil chamber 1 is arranged inside the top outer wall of the buffer cylinder, a buffer rod is movably inserted on the top outer wall of the buffer cylinder, a piston valve is installed at the bottom of the buffer rod, the piston valve is located inside the oil chamber 1, an oil chamber 2 is arranged inside the buffer rod near the piston valve, the oil chamber 1 and the oil chamber 2 are connected through the piston valve, the interiors of the oil chamber 1 and the oil chamber 2 are both filled with damping fluid, a pad is fixedly mounted on the top outer wall of the buffer rod, the top end of the pad is fixedly mounted on the bottom outer wall of the support block, a buffer spring is fixedly mounted on the top end of the second pad, one end of the buffer spring is fixedly mounted on the bottom outer wall of the pad 1, and the buffer spring is wound around the circumferential outer wall of the buffer cylinder and the buffer rod.

[0015] Preferably, a same connecting plate is fixedly mounted on the outer walls on one side opposite to the two supporting plates, and a same rubber pad is bonded to the bottom outer walls of the connecting plate and the two supporting plates.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The utility model is provided with a buffer shock absorbing mechanism. After the outer shell wraps the tube bundle, the bottom is supported by the support block and the buffer shock absorbing mechanism. The buffer shock absorbing mechanism itself can play a role of stable support. After the tube bundle is impacted, the impact exceeds the normal bearing capacity of the buffer shock absorbing mechanism, which will cause the buffer shock absorbing mechanism to deform, the buffer spring is compressed, the buffer rod is pressed downward, the buffer rod is pressed into the buffer cylinder, the piston valve opens, and the damping fluid in the oil chamber 1 and the oil chamber 2 begins to flow, converting the kinetic energy brought by the impact into the elastic potential energy of the compression of the buffer spring, and then the damping force formed by the damping fluid offsets the elastic potential energy and converts it into heat energy dissipation, thereby causing the amplitude of the buffer spring to decay rapidly, the buffer rod quickly tends to be stable in the buffer cylinder, and then the entire buffer shock absorbing mechanism quickly returns to normal, thereby ensuring the stability of the tube bundle, avoiding the loss of the tube bundle, and ensuring the normal use of the tube bundle.

[0018] (2) The utility model is provided with a slider and a clamping plate. The sliders are located on both sides of the support block. After the tube bundle is impacted, the sliders slide in the strip grooves and the clamping plates slide on the surface of the U-shaped frame, so that the support block, the outer shell and the tube bundle can move downward stably after being impacted, thereby reducing the shaking of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the support structure and outer shell structure of the first embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the support structure of the first embodiment of the utility model;

[0021] Figure 3 This is an exploded view of the support structure of the first embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the support structure and outer shell structure of the second embodiment of the present utility model;

[0023] In the figure: 1, support plate; 2, U-shaped frame; 3, buffer shock absorption mechanism; 4, strip groove; 5, limit mechanism; 6, outer shell; 7, limit plate; 8, support block; 9, baffle; 10, connecting plate; 11, rubber pad;

[0024] 301, buffer cylinder; 302, buffer rod; 303, pad 1; 304, pad 2; 305, buffer spring;

[0025] 501. Pallet; 502. Slider. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 3 As shown, a tube bundle support structure of a shell-and-tube heat exchanger comprises:

[0029] Two support plates 1, with U-shaped frames 2 fixedly mounted on the top outer walls of the two support plates 1;

[0030] A buffering and shock absorbing mechanism 3, wherein a plurality of buffering and shock absorbing mechanisms 3 are equidistantly distributed and fixedly installed on the bottom inner wall of the U-shaped frame 2, and a support block 8 is fixed on the top outer wall of the buffering and shock absorbing mechanism 3, and the surface of the support block 8 is arc-shaped;

[0031] The outer shell 6 is fixedly mounted on the top outer walls of the two support blocks 8 , and the interior of the outer shell 6 is wrapped with a tube bundle.

[0032] As can be seen from the above, the tube bundle is wrapped by the outer shell 6, and the outer shell 6 is supported by the support block 8, the buffer shock absorbing mechanism 3, the U-shaped frame 2 and the support plate 1. After the device is impacted, the buffer shock absorbing mechanism 3 buffers and absorbs the shock for the device, and removes the impact on the tube bundle to protect the device.

[0033] Specifically, a strip groove 4 is opened upward in the middle of the outer walls on both sides of the U-shaped frame 2, and baffles 9 are fixedly installed on the other two outer walls of the U-shaped frame 2. The support block 8 is slidably connected to the inner walls on both sides of the U-shaped frame 2 and one inner wall of the two baffles 9.

[0034] As can be seen from the above, after receiving the impact force, the support block 8 slides downward on the inner walls of the U-shaped frame 2 and the two baffles 9 to reduce the shaking of the device.

[0035] Specifically, the limiting mechanisms 5 are fixedly installed on the outer walls on both sides of the support block 8 , the limiting mechanisms 5 are located inside the strip groove 4 , and the limiting plates 7 are fixedly installed on both sides of the outer wall on the top of the U-shaped frame 2 .

[0036] It can be seen from the above that the limiting plate 7 is provided to prevent the limiting mechanism 5 from escaping from the strip groove 4 .

[0037] Specifically, the limiting mechanism 5 includes a slider 502, which is fixedly mounted on an outer wall of one side of the support block 8. The outer wall of one side of the slider 502 is slidably clamped on the inner wall of the strip groove 4. A clamping plate 501 is fixedly mounted on one end of the slider 502. The clamping plate 501 is attached to the outer wall of the U-shaped frame 2. The limiting plate 7 is located above the clamping plate 501 and the slider 502.

[0038] As can be seen from the above, the sliders 502 are located on both sides of the support block 8. After the tube bundle is impacted, the sliders 502 slide in the strip grooves 4, and the clamping plates 501 slide on the surface of the U-shaped frame 2, so that the support block 8, the outer shell 6 and the tube bundle move downward stably after being impacted, reducing the shaking of the device.

[0039] Specifically, the buffer shock absorbing mechanism 3 includes a second pad 304, which is fixedly mounted on the bottom inner wall of the U-shaped frame 2, a buffer cylinder 301 is fixedly mounted on the top outer wall of the second pad 304, an oil chamber 1 is arranged inside the top outer wall of the buffer cylinder 301, a buffer rod 302 is movably inserted on the top outer wall of the buffer cylinder 301, a piston valve is installed at the bottom of the buffer rod 302, the piston valve is located inside the oil chamber 1, and an oil chamber 2 is arranged inside the buffer rod 302 near the piston valve. The oil chamber 1 and the oil chamber 2 are connected through a piston valve, and the interiors of the oil chamber 1 and the oil chamber 2 are both filled with damping liquid. A pad 1 303 is fixedly installed on the top outer wall of the buffer rod 302, and the top end of the pad 1 303 is fixedly installed on the bottom outer wall of the support block 8. A buffer spring 305 is fixedly installed on the top of the pad 2 304, and one end of the buffer spring 305 is fixedly installed on the bottom outer wall of the pad 1 303. The buffer spring 305 is wrapped around the circumferential outer wall of the buffer tube 301 and the buffer rod 302.

[0040] It can be seen from the above that the buffer shock absorbing mechanism 3 itself can play a role of stable support. After the tube bundle is impacted, if it exceeds the normal bearing capacity of the buffer shock absorbing mechanism 3, the buffer shock absorbing mechanism 3 will be deformed, the buffer spring 305 will be compressed, the buffer rod 302 will be pressed down by force, the buffer rod 302 will be pressed into the buffer cylinder 301, the piston valve will open, and the damping fluid in the oil chamber 1 and the oil chamber 2 will begin to circulate. The kinetic energy brought by the impact is converted into the elastic potential energy of the compression of the buffer spring 305, and then the damping force formed by the damping fluid will offset the elastic potential energy and convert it into heat energy dissipation, thereby causing the amplitude of the buffer spring 305 to decay rapidly, and the buffer rod 302 will quickly stabilize in the buffer cylinder 301, thereby causing the entire buffer shock absorbing mechanism 3 to quickly return to normal, thereby ensuring the stability of the tube bundle, avoiding the loss of the tube bundle, and ensuring the normal use of the tube bundle.

[0041] Working principle: the tube bundle is wrapped by the outer shell 6, and the outer shell 6 is supported by the support block 8, the buffer shock-absorbing mechanism 3, the U-shaped frame 2 and the support plate 1. After the device is impacted, the buffer shock-absorbing mechanism 3 buffers and damps the device, and the kinetic energy brought by the impact is converted into the elastic potential energy of the compression of the buffer spring 305, and then the damping force formed by the damping fluid offsets the elastic potential energy and converts it into heat energy dissipation, thereby causing the amplitude of the buffer spring 305 to decay rapidly, and the buffer rod 302 quickly tends to stabilize in the buffer cylinder 301, thereby causing the entire buffer shock-absorbing mechanism 3 to quickly return to normal, thereby ensuring the stability of the tube bundle, avoiding the loss of the tube bundle, and ensuring the normal use of the tube bundle.

[0042] Embodiment 2:

[0043] refer to Figure 4As shown, this embodiment is basically the same as the previous embodiment, except that a same connecting plate 10 is fixedly mounted on the outer walls of the two supporting plates 1 on one side opposite to each other, and a same rubber pad 11 is bonded to the connecting plate 10 and the bottom outer walls of the two supporting plates 1 .

[0044] As can be seen from the above, the two support plates 1 are connected into a whole through the connecting plate 10, and the contact surface with the ground is larger, thereby making the device support more stable, and the rubber pad 11 has the effect of preventing slipping and increasing friction with the ground.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tube bundle support structure for a shell-and-tube heat exchanger, characterized in that: include: Two support plates (1), with U-shaped frames (2) fixedly mounted on top outer walls of the two support plates (1); A buffering and shock absorbing mechanism (3), wherein a plurality of the buffering and shock absorbing mechanisms (3) are equidistantly distributed and fixedly mounted on the bottom inner wall of the U-shaped frame (2), a support block (8) is fixed on the top outer wall of the buffering and shock absorbing mechanism (3), and the surface of the support block (8) is arc-shaped; An outer shell (6), wherein the outer shell (6) is fixedly mounted on the top outer walls of the two support blocks (8), and a tube bundle is wrapped inside the outer shell (6).

2. The tube bundle support structure of a shell-and-tube heat exchanger according to claim 1, characterized in that: A strip groove (4) is formed upwardly in the middle of the outer walls on both sides of the U-shaped frame (2); baffles (9) are fixedly mounted on the outer walls on the other two sides of the U-shaped frame (2); and the support block (8) is slidably connected to the inner walls on both sides of the U-shaped frame (2) and the inner walls on one side of the two baffles (9).

3. The tube bundle support structure of a shell-and-tube heat exchanger according to claim 2, characterized in that: Limiting mechanisms (5) are fixedly installed on both side outer walls of the support block (8), and the limiting mechanisms (5) are located inside the strip groove (4). Limiting plates (7) are fixedly installed on both sides of the top outer wall of the U-shaped frame (2).

4. The tube bundle support structure of a shell-and-tube heat exchanger according to claim 3, characterized in that: The limiting mechanism (5) comprises a slider (502), the slider (502) being fixedly mounted on an outer wall of one side of the support block (8), the outer wall of one side of the slider (502) being slidably clamped on the inner wall of the strip groove (4), a clamping plate (501) being fixedly mounted on one end of the slider (502), the clamping plate (501) being attached to the outer wall of the U-shaped frame (2), and the limiting plate (7) being located above the clamping plate (501) and the slider (502).

5. The tube bundle support structure of a shell-and-tube heat exchanger according to claim 1, characterized in that: The buffer shock absorbing mechanism (3) comprises a second pad (304), the second pad (304) being fixedly mounted on the bottom inner wall of the U-shaped frame (2), a buffer cylinder (301) being fixedly mounted on the top outer wall of the second pad (304), an oil chamber (1) being arranged inside the top outer wall of the buffer cylinder (301), a buffer rod (302) being movably inserted on the top outer wall of the buffer cylinder (301), a piston valve being mounted at the bottom of the buffer rod (302), the piston valve being located inside the oil chamber (1), and an oil chamber (2) being arranged inside the buffer rod (302) near the piston valve. The oil chamber 1 and the oil chamber 2 are connected through a piston valve, and the interiors of the oil chamber 1 and the oil chamber 2 are filled with damping liquid. A pad 1 (303) is fixedly installed on the top outer wall of the buffer rod (302), and the top end of the pad 1 (303) is fixedly installed on the bottom outer wall of the support block (8). A buffer spring (305) is fixedly installed on the top of the pad 2 (304), and one end of the buffer spring (305) is fixedly installed on the bottom outer wall of the pad 1 (303). The buffer spring (305) is wound around the circumferential outer wall of the buffer cylinder (301) and the buffer rod (302).

6. The tube bundle support structure of a shell-and-tube heat exchanger according to claim 1, characterized in that: A common connecting plate (10) is fixedly mounted on the outer walls of one side opposite to the two supporting plates (1), and a common rubber pad (11) is bonded to the bottom outer walls of the connecting plate (10) and the two supporting plates (1).

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