Shell-and-tube heat exchanger with split structure

Abstract

The utility model belongs to the technical field of shell-and-tube heat exchangers, and relates to a shell-and-tube heat exchanger with a split structure, which comprises a support seat, a heat exchanger fixedly connected onto the support seat, an input port arranged on the heat exchanger, and protective covers connected at two ends of the heat exchanger, and is characterized in that the heat exchanger is fixedly connected with the protective covers through fixing rings; the fixing ring comprises an upper fixing ring body and a lower fixing ring body, the upper fixing ring body and the lower fixing ring body are movably connected through a rotating shaft, an adjusting mechanism and a fixing mechanism are arranged on the lower fixing ring body, and a fixing groove matched with the fixing mechanism is formed in the upper fixing ring body. When the protecting cover and the heat exchanger are fixed, the protecting cover and the heat exchanger are stably fixed through the fixing ring, looseness is prevented in the using process, meanwhile, the adjusting mechanism and the fixing mechanism are used for controlling the fixing ring so that the protecting cover can be conveniently detached, and the cleaning efficiency of the interior of the heat exchanger can be improved.

Description

Technical Field

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

[0002] Shell and tube heat exchanger, also known as shell and tube heat exchanger, is a wall heat exchanger that uses the wall of the tube bundle enclosed in the shell as the heat transfer surface. This type of 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 footprint is large. It can be made of various structural materials (mainly metal materials) and can be used under high temperature and high pressure. It is the most widely used type. Due to long-term use, water stains generated by water vapor will adhere to the inner wall of the device, which will corrode the inner wall for a long time and cause damage to the heat exchanger. Since most traditional heat exchangers are one-piece castings, it is impossible to remove the internal structure for cleaning, which is easy to cause Its internal corrosion, the existing patent number is CN219607786U utility model patent, a split tube heat exchanger includes a tube body, a tube bundle, a baffle, a partition, an expansion joint, a head group and an insulation layer; the tube body is a cylindrical tubular structure; there are several baffles, which are vertically arranged on the inner wall of the tube body; there are several tube bundles, which are horizontally arranged inside the tube body; there are two tube sheets, which are vertically arranged at both ends of the tube body, and the expansion joint is vertically arranged outside the tube body, and its interior is connected with the tube body; the head group is horizontally arranged at the port of the tube body; the insulation layer is horizontally arranged on the outer wall outside the tube body. It is convenient to disassemble the protective cover and speed up the efficiency of cleaning the inside of the heat exchanger.

[0003] The prior art has the following technical defects:

[0004] In the above technical solution, the head assembly and the pipe body are connected by a plurality of bolts, which is very cumbersome and inconvenient during disassembly and assembly, resulting in a long cleaning time and low efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a split-structure shell-and-tube heat exchanger.

[0006] The split-structure shell and tube heat exchanger described in the utility model includes a support base, a heat exchanger is fixedly connected to the support base, an input port is provided on the heat exchanger, and protective covers are connected to both ends of the heat exchanger. The heat exchanger and the protective cover are fixedly connected via a fixing ring; the fixing ring includes an upper fixing ring and a lower fixing ring, the upper fixing ring and the lower fixing ring are movably connected via a rotating shaft, the lower fixing ring is provided with an adjusting mechanism and a fixing mechanism, and the upper fixing ring is provided with a fixing groove adapted to the fixing mechanism.

[0007] Working process or working principle:

[0008] When in use, pull the adjusting mechanism downward to drive the fixing mechanism to separate from the fixing groove, thereby separating the upper fixing ring and the lower fixing ring, and then separating the protective cover fixed by the fixing ring from the heat exchanger, realizing the disassembly of the heat exchanger, and facilitating the staff to clean the inside of the heat exchanger. After cleaning, clamp the protective cover and the heat exchanger together through the lower fixing ring, pull the adjusting mechanism downward and rotate the upper fixing ring to align the fixing groove with the fixing mechanism, release the adjusting mechanism, and complete the cleaning and assembly.

[0009] The lower fixing ring is provided with a positioning cavity, and the adjusting mechanism and the fixing mechanism are both arranged in the positioning cavity, so there is no need to arrange other structures on the fixing ring to protect the adjusting mechanism and the fixing mechanism.

[0010] The fixing mechanism includes a compression spring and a bent rod. The bent rod is rotatably connected in the positioning cavity. The compression spring is fixedly connected to the inner wall of the positioning cavity. The other end of the compression spring is fixedly connected to a positioning rod adapted to the fixing groove. The positioning rod contacts one side of the bent rod, and the other side of the bent rod is movably connected to the adjustment mechanism. The movement of the positioning rod is controlled by the adjustment mechanism so that it can be separated from the positioning groove.

[0011] The positioning cavity is provided with a limiting groove matched with the positioning rod, through which the positioning rod can achieve a guiding effect of moving left and right, providing a moving track for the positioning rod to move, and ensuring the normal use of the structure.

[0012] The adjustment mechanism includes a connecting rod movably connected to the bending rod, and a moving rod is fixedly connected to the bottom of the connecting rod. The moving rod passes through the front surface of the lower fixed ring. The moving rod passes through the outer surface of the lower fixed ring, and the staff can directly control the rotation of the bending rod outside the fixed ring, thereby controlling the movement of the positioning rod, and further realizing the separation and fixation of the upper fixed ring and the lower fixed ring.

[0013] The connecting rod is provided with a fixed column, and the bent rod is provided with a travel groove corresponding to the fixed column. The fixed column is slidably connected in the travel groove. By setting the travel groove, the moving direction and travel of the fixed column can be limited to prevent exceeding the travel during use and causing structural damage.

[0014] The inner surfaces of the upper fixing ring and the lower fixing ring are both provided with cushions, which are in close contact with the surfaces of the protective cover and the heat exchanger. By providing the cushions, the sealing of the joint can be increased when the protective cover and the heat exchanger are butt-fixed to prevent leakage.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] When the protective cover is fixed to the heat exchanger, the utility model uses a fixing ring to stably fix it to prevent loosening during use. At the same time, the fixing ring is controlled by an adjusting mechanism and a fixing mechanism to facilitate disassembly of the protective cover, thereby accelerating the cleaning efficiency of the inside of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of an embodiment of the utility model.

[0018] Figure 2 This is the second structural diagram of an embodiment of the utility model.

[0019] Figure 3 This is a schematic diagram of the structure of a fixing ring in one embodiment of the utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in .

[0021] In the figure: 1. support seat; 2. heat exchanger; 3. protective cover; 4. input port; 5. fixing ring; 501. upper fixing ring; 502. lower fixing ring; 6. positioning cavity; 7. adjustment mechanism; 701. moving rod; 702. connecting rod; 703. fixing column; 8. fixing mechanism; 801. bending rod; 802. positioning rod; 803. compression spring; 9. fixing groove; 10. limiting groove; 11. travel groove; 12. cushion. DETAILED DESCRIPTION

[0022] Example 1

[0023] like Figure 1 to Figure 4As shown, the split-structure shell-and-tube heat exchanger 2 described in the utility model comprises a support base 1, a heat exchanger 2 is fixedly connected to the support base 1, an input port 4 is provided on the heat exchanger 2, and protective covers 3 are connected to both ends of the heat exchanger 2. The heat exchanger 2 and the protective cover 3 are fixedly connected through a fixing ring 5; the fixing ring 5 comprises an upper fixing ring 501 and a lower fixing ring 502, the upper fixing ring 501 and the lower fixing ring 502 are movably connected through a rotating shaft, the lower fixing ring 502 is provided with an adjusting mechanism 7 and a fixing mechanism 8, and the upper fixing ring 501 is provided with a fixing groove 9 adapted to the fixing mechanism 8; the lower fixing ring 502 is provided with a positioning cavity 6, the adjusting mechanism 7 and The fixing mechanism 8 is arranged in the positioning cavity 6, and there is no need to arrange other structures on the fixing ring 5 to protect the adjusting mechanism 7 and the fixing mechanism 8; the fixing mechanism 8 comprises a compression spring 803 and a bent rod 801, the bent rod 801 is rotatably connected in the positioning cavity 6, the compression spring 803 is fixedly connected to the inner wall of the positioning cavity 6, the other end of the compression spring 803 is fixedly connected to a positioning rod 802 adapted to the fixing groove 9, the positioning rod 802 contacts one side of the bent rod 801, and the other side of the bent rod 801 is movably connected to the adjusting mechanism 7, and the movement of the positioning rod 802 is controlled by the adjusting mechanism 7 so that it can be separated from the positioning groove; the positioning cavity 6 is provided with a fixing groove 9 adapted to the fixing groove 9. The limiting groove 10 adapted to the positioning rod 802 can guide the positioning rod 802 to move left and right through the limiting groove 10, providing a moving trajectory for the positioning rod 802 to move, thereby ensuring the normal use of the structure; the adjusting mechanism 7 includes a connecting rod 702 movably connected to the bending rod 801, and a moving rod 701 is fixedly connected to the bottom of the connecting rod 702. The moving rod 701 passes through the front surface of the lower fixed ring 502. The moving rod 701 that passes through the outer surface of the lower fixed ring 502 allows the staff to directly control the rotation of the bending rod 801 outside the fixed ring 5, thereby controlling the movement of the positioning rod 802, and then realizing the upper and lower fixed rings 501 and 502. Separation and fixation; the connecting rod 702 is provided with a fixing column 703, and the bent rod 801 is provided with a travel groove 11 corresponding to the fixing column 703, and the fixing column 703 is slidably connected in the travel groove 11. By setting the travel groove 11, the moving direction and travel of the fixing column 703 can be limited to prevent exceeding the travel during use and causing structural damage; the inner surfaces of the upper fixing ring 501 and the lower fixing ring 502 are both provided with soft pads 12, and the soft pads 12 are in close contact with the surfaces of the protective cover 3 and the heat exchanger 2. By setting the soft pads 12, when the protective cover 3 and the heat exchanger 2 are docked and fixed, the sealing of the docking point can be increased to prevent leakage.

[0024] Working process or working principle:

[0025] When in use, the moving rod 701 is pulled downward, and the moving rod 701 drives the connecting rod 702 to move downward, and the connecting rod 702 drives the fixing column 703 to move downward, and the fixing column 703 squeezes the inner wall of the travel groove 11 to make the two bent rods 801 rotate with the rotation axis as the center. During the rotation, the bent rod 801 squeezes the positioning rod 802 to make the two positioning rods 802 move forward, and the positioning rod 802 moves along the moving trajectory provided by the limiting groove 10, while compressing the compression spring 803, so that the positioning rod 802 moves away from the fixing groove 9, so that the upper fixing ring 5 01 and the lower fixing ring 502 are separated, thereby realizing the separation of the protective cover 3 and the heat exchanger 2 connected and fixed by the fixing ring 5, realizing the disassembly of the heat exchanger 2, and facilitating the staff to clean the inside of the heat exchanger 2. After the cleaning is completed, the protective cover 3 and the heat exchanger 2 are clamped together by the lower fixing ring 502, and then the moving rod 701 is pulled downward and the upper fixing ring 501 is rotated to combine the fixing groove 9 with the positioning rod 802. After completion, the moving rod 701 is released, and the positioning rod 802 is reinserted into the fixing groove 9 by the rebound force of the compression spring 803, completing the assembly and fixation of the protective cover 3 and the heat exchanger 2 by the fixing ring 5.

[0026] When the protective cover 3 is fixed to the heat exchanger 2, the fixing ring 5 is used to stably fix it to prevent loosening during use. At the same time, the adjusting mechanism 7 and the fixing mechanism 8 are used to control the fixing ring 5 to facilitate the removal of the protective cover 3, thereby accelerating the cleaning efficiency of the inside of the heat exchanger 2.

[0027] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A split-structure shell-and-tube heat exchanger, comprising a support base (1), a heat exchanger (2) fixedly connected to the support base (1), an input port (4) provided on the heat exchanger (2), and protective covers (3) connected to both ends of the heat exchanger (2), characterized in that: The heat exchanger (2) and the protective cover (3) are fixedly connected via a fixing ring (5); The fixing ring (5) comprises an upper fixing ring (501) and a lower fixing ring (502); the upper fixing ring (501) and the lower fixing ring (502) are movably connected via a rotating shaft; the lower fixing ring (502) is provided with an adjusting mechanism (7) and a fixing mechanism (8); and the upper fixing ring (501) is provided with a fixing groove (9) matched with the fixing mechanism (8).

2. The split-structure shell and tube heat exchanger according to claim 1, characterized in that: A positioning cavity (6) is provided in the lower fixing ring (502), and the adjusting mechanism (7) and the fixing mechanism (8) are both arranged in the positioning cavity (6).

3. The split-structure shell and tube heat exchanger according to claim 2 is characterized in that: The fixing mechanism (8) comprises a compression spring (803) and a bent rod (801), wherein the bent rod (801) is rotatably connected in the positioning cavity (6), the compression spring (803) is fixedly connected to the inner wall of the positioning cavity (6), the other end of the compression spring (803) is fixedly connected to a positioning rod (802) adapted to the fixing groove (9), the positioning rod (802) is in contact with one side of the bent rod (801), and the other side of the bent rod (801) is movably connected to the adjustment mechanism (7).

4. The split-structure shell and tube heat exchanger according to claim 3 is characterized in that: The positioning cavity (6) is provided with a limiting groove (10) adapted to the positioning rod (802).

5. The split-structure shell and tube heat exchanger according to claim 3 is characterized in that: The adjusting mechanism (7) comprises a connecting rod (702) movably connected to the bending rod (801), wherein the connecting rod (702) The bottom is fixedly connected with a moving rod (701), and the moving rod (701) passes through the front surface of the lower fixing ring (502).

6. The split-structure shell and tube heat exchanger according to claim 5, characterized in that: The connecting rod (702) is provided with a fixing column (703), and the bent rod (801) is provided with a Corresponding to the travel groove (11), the fixed column (703) is slidably connected in the travel groove (11).

7. The split-structure shell and tube heat exchanger according to any one of claims 1 to 6, characterized in that: The inner surfaces of the upper fixing ring (501) and the lower fixing ring (502) are both provided with soft pads (12), and the soft pads (12) are in close contact with the surfaces of the protective cover (3) and the heat exchanger (2).

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