Heat exchanger for chemical engineering

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a heat exchanger for chemical engineering, which comprises a pipe body, one side of the pipe body is fixedly connected with a connecting block, the outer surface of the connecting block is fixedly connected with a first flange, one side of the first flange is movably connected with a second flange, and the second flange is fixedly connected with the pipe body. A tube box is fixedly connected to the inner surface of the second flange, supporting legs are fixedly connected to the bottom of one side of the tube box, and a heat preservation sleeve is movably connected to the outer surface of the tube body, so that heat loss in the heat exchange process is reduced, and the efficiency of the heat exchanger can be improved by reducing the heat loss and the heat preservation sleeve; meanwhile, workers can be prevented from being scalded by the high-temperature pipe body, heat is prevented from being dissipated from a seam by conducting sealing treatment on the pipe body and the pipe box, and therefore the efficiency of the heat exchanger is improved, the maintenance frequency of equipment can be reduced, the frequency of replacing parts can be reduced, and the downtime can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and more specifically to a heat exchanger for chemical engineering. Background Art

[0002] A heat exchanger, also known as a heat exchanger or heat exchange equipment, is an energy-saving device that realizes heat transfer between two or more fluids at different temperatures. It transfers part of the heat of the hot fluid to the cold fluid so that the fluid temperature reaches the specified index of the process to meet the needs of process conditions. It is also one of the main equipment for improving energy utilization. Heat exchangers occupy an important position in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] During use, the existing heat exchangers for chemical engineering have a relatively harsh operating environment. The temperature of the working environment is quite different from the temperature of the heat exchanger. When the temperature of the hot air flow is high, the temperature of the surface of the pipe is high, which may cause scalding accidents during production operations and pose a safety hazard. In addition, the surface of the heat exchanger is not insulated during the heat exchange process, and heat may be lost to the environment through the surface, resulting in energy waste. When cleaning the cold flow pipe, the existing heat exchangers for chemical engineering separate the pipe box from the pipe body, but this creates a gap between the pipe body and the pipe box, which makes it easy to leak during heat exchange, thereby reducing the thermal efficiency of the device, resulting in energy waste and increased operating costs. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a heat exchanger for chemical engineering to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a heat exchanger for chemical engineering, comprising a pipe body, one side of the pipe body is fixedly connected to a connection block, the outer surface of the connection block is fixedly connected to a first flange, one side of the first flange is movably connected to a second flange, the inner surface of the second flange is fixedly connected to a pipe box, the bottom of one side of the pipe box is fixedly connected to a support foot, and the outer surface of the pipe body is movably connected to a heat preservation sleeve;

[0006] Furthermore, a warm flow inlet is fixedly connected to one side of the top of the outer surface of the tube body, a warm flow outlet is fixedly connected to the other side of the bottom of the outer surface of the tube body, a deflector is fixedly connected to the inner surface of the tube body, a cover plate is fixedly connected to both sides of the tube body, circular holes are opened on both sides of the cover plate, a cold flow pipe is movably connected to the surface of the circular hole, and the gap between the cold flow pipes is a warm flow channel.

[0007] Furthermore, the baffles are staggered up and down on the inner wall of the tube body, the baffles are semicircular and their diameter is the same as the inner diameter of the tube body, and the outer surface of the cover plate is fixedly connected with a connecting block.

[0008] Furthermore, a connecting block is fixedly connected to the inner surface of the first flange, a limiting block is fixedly connected to one side of the first flange, a sealing gasket is fixedly connected to the outer surface of the limiting block, a limiting groove is opened in the middle of the other side of the second flange, the inner surface of the limiting groove is movably connected to the limiting block, a sealing groove is opened on the outside of the limiting groove, and the inner surface of the sealing groove is movably connected to the sealing gasket.

[0009] Furthermore, a partition plate is fixedly connected to the middle of the inner surface of the pipe box, a cover plate is fixedly connected to the other side of the partition plate, a cold flow inlet is fixedly connected to the bottom of the outer surface of the pipe box, and a cold flow outlet is fixedly connected to the top of the outer surface of the pipe box.

[0010] Furthermore, the inner surface of the thermal insulation sleeve is provided with a cylindrical sleeve inner wall, the cylindrical sleeve inner wall is movably connected to a tube body, the outer surface of the thermal insulation sleeve is movably connected to a cylindrical sleeve outer wall, two places on the front side of the cylindrical sleeve outer wall are fixedly connected to straps, the back side of the straps is fixedly connected to a Velcro hook surface, and the bottom of the outer surface of the cylindrical sleeve outer wall is fixedly connected to a Velcro fleece surface.

[0011] Furthermore, the fiber cloth attached to the surface of the thermal insulation sleeve is glass fiber cloth or carbon fiber cloth.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model allows the cold fluid to enter the pipe box through the cold flow inlet and then enter the cold flow pipe and be discharged through the cold flow outlet. At this time, the warm air passes through the warm flow inlet, the warm flow channel and then the warm flow outlet. The temperature is increased and decreased through the mutual exchange of the temperatures of the cold and hot fluids. At this time, the inner wall of the cylindrical sleeve in the insulation sleeve is wrapped around the pipe body. Since fiber cloth is attached to the surface of the insulation sleeve, the glass fiber cloth can reduce heat conduction and block the transfer of heat energy, thereby preventing heat loss or entry. At this time, the strap is folded down to make the Velcro hook surface fit with the Velcro hair surface, so as to fix the insulation sleeve on the surface of the pipe body, which is beneficial to reduce heat loss during the heat exchange process. By reducing heat loss, the insulation sleeve can improve the efficiency of the heat exchanger and prevent the staff from being scalded by the high-temperature pipe body.

[0014] 2. In order to avoid leakage during heat exchange, the utility model connects the first flange and the second flange to each other. At this time, the limit block is aligned with the limit groove and then pushed into the limit groove. At this time, the sealing gasket and the sealing groove are connected to each other, and then the first flange and the second flange are connected with bolts. This is beneficial to seal the pipe body and the pipe box to avoid heat loss from the joints, thereby improving the efficiency of the heat exchanger. At the same time, it can also reduce the number of equipment maintenance times, reduce the frequency of component replacement and reduce downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the tube body of the utility model.

[0017] Figure 3 It is a schematic diagram of the planed surface structure of the pipe box of the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the thermal insulation sleeve of the utility model.

[0019] The accompanying drawings are marked as follows: 1. tube body; 101. warm current inlet; 102. warm current outlet; 103. warm current flow channel; 104. deflector; 105. cold current tube; 106. cover plate; 107. round hole; 2. connecting block; 201. first flange; 202. limit block; 203. sealing gasket; 204. second flange; 205. limit groove; 206. sealing groove; 3. pipe box; 301. partition plate; 302. cold current inlet; 303. cold current outlet; 304. support foot; 4. insulation cover; 401. inner wall of cylindrical cover; 402. outer wall of cylindrical cover; 403. binding strap; 404. Velcro hook surface; 405. Velcro fleece surface. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The heat exchanger for chemical engineering involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] Reference Figure 1-4The utility model provides a heat exchanger for chemical engineering, including a pipe body 1, a connecting block 2 is fixedly connected to one side of the pipe body 1, a first flange 201 is fixedly connected to the outer surface of the connecting block 2, a second flange 204 is movably connected to one side of the first flange 201, a pipe box 3 is fixedly connected to the inner surface of the second flange 204, a support leg 304 is fixedly connected to the bottom of one side of the pipe box 3, and an insulation sleeve 4 is movably connected to the outer surface of the pipe body 1.

[0022] In a preferred embodiment, a warm flow inlet 101 is fixedly connected to one side of the top of the outer surface of the tube body 1, a warm flow outlet 102 is fixedly connected to the other side of the bottom of the outer surface of the tube body 1, a baffle 104 is fixedly connected to the inner surface of the tube body 1, and a cover plate 106 is fixedly connected to both sides of the tube body 1. Circular holes 107 are provided on both sides of the cover plate 106, and a cold flow tube 105 is movably connected to the surface of the circular hole 107, and the gap between the cold flow tubes 105 is a warm flow channel 103.

[0023] In a preferred embodiment, the baffles 104 are staggered up and down on the inner wall of the tube body 1 , the baffles 104 are semicircular and their diameter is the same as the inner diameter of the tube body 1 , and the outer surface of the cover plate 106 is fixedly connected to the connecting block 2 .

[0024] In a preferred embodiment, the inner surface of the first flange 201 is fixedly connected to the connecting block 2, one side of the first flange 201 is fixedly connected to the limiting block 202, the outer surface of the limiting block 202 is fixedly connected to the sealing gasket 203, a limiting groove 205 is opened in the middle of the other side of the second flange 204, the inner surface of the limiting groove 205 is movably connected to the limiting block 202, a sealing groove 206 is opened on the outside of the limiting groove 205, and the inner surface of the sealing groove 206 is movably connected to the sealing gasket 203.

[0025] In a preferred embodiment, a partition plate 301 is fixedly connected to the middle of the inner surface of the pipe box 3, a cover plate 106 is fixedly connected to the other side of the partition plate 301, a cold flow inlet 302 is fixedly connected to the bottom of the outer surface of the pipe box 3, and a cold flow outlet 303 is fixedly connected to the top of the outer surface of the pipe box 3.

[0026] In a preferred embodiment, the inner surface of the insulation sleeve 4 is provided with a cylindrical sleeve inner wall 401, the cylindrical sleeve inner wall 401 is movably connected to the tube body 1, the outer surface of the insulation sleeve 4 is movably connected to the cylindrical sleeve outer wall 402, two places on the front of the cylindrical sleeve outer wall 402 are fixedly connected to straps 403, the back of the straps 403 is fixedly connected to a Velcro hook surface 404, and the bottom of the outer surface of the cylindrical sleeve outer wall 402 is fixedly connected to a Velcro fur surface 405.

[0027] In a preferred embodiment, the fiber cloth attached to the surface of the thermal insulation sleeve 4 is glass fiber cloth or carbon fiber cloth.

[0028] The working principle of the utility model is as follows: the cold fluid enters the pipe box 3 through the cold flow inlet 302 and then enters the cold flow pipe 105 and is discharged through the cold flow outlet 303. At this time, the warm air passes through the warm flow inlet 101, the warm flow channel 103 and then the warm flow outlet 102. The temperature increase and decrease are achieved through the mutual exchange of the temperatures of the cold and hot fluids. At this time, the inner wall 401 of the cylindrical sleeve in the insulation sleeve 4 is wrapped around the pipe body 1. Since the surface of the insulation sleeve 4 is attached with fiber cloth, and the glass fiber cloth can reduce heat conduction and block the transfer of heat energy, thereby preventing heat loss or entry, at this time, the binding strap 403 is folded downward to make the Velcro hook surface 404 and the Velcro fur surface 405 fit together, thereby fixing the insulation sleeve 4 on the surface of the pipe body 1, which is beneficial to reduce heat exchange. Heat loss during the process, by reducing heat loss, the insulation sleeve 4 can improve the efficiency of the heat exchanger, and at the same time can prevent the staff from being scalded by the high-temperature pipe body 1; in order to avoid leakage during heat exchange, the first flange 201 and the second flange 204 are connected to each other, at this time, the limit block 202 is aligned with the limit groove 205 and the limit block 202 is pushed into the limit groove 205, at this time, the sealing gasket 203 and the sealing groove 206 are connected to each other, and then the first flange 201 and the second flange 204 are connected with bolts, which is beneficial to seal the pipe body 1 and the pipe box 3 to avoid heat loss from the joint, thereby improving the efficiency of the heat exchanger, and at the same time it can also reduce the number of equipment maintenance times, reduce the frequency of replacing parts and reduce downtime.

Claims

1. A heat exchanger for chemical engineering, comprising a tube body (1), characterized in that: A connection block (2) is fixedly connected to one side of the pipe body (1); a first flange (201) is fixedly connected to the outer surface of the connection block (2); a second flange (204) is movably connected to one side of the first flange (201); a pipe box (3) is fixedly connected to the inner surface of the second flange (204); a support foot (304) is fixedly connected to the bottom of one side of the pipe box (3); and a thermal insulation sleeve (4) is movably connected to the outer surface of the pipe body (1).

2. A heat exchanger for chemical engineering according to claim 1, characterized in that: A warm flow inlet (101) is fixedly connected to one side of the top of the outer surface of the tube body (1), a warm flow outlet (102) is fixedly connected to the other side of the bottom of the outer surface of the tube body (1), a baffle (104) is fixedly connected to the inner surface of the tube body (1), a cover plate (106) is fixedly connected to both sides of the tube body (1), circular holes (107) are provided on both sides of the cover plate (106), a cold flow tube (105) is movably connected to the surface of the circular hole (107), and the gap between the cold flow tubes (105) is a warm flow channel (103).

3. A heat exchanger for chemical engineering according to claim 2, characterized in that: The baffles (104) are staggered up and down on the inner wall of the tube body (1); the baffles (104) are semicircular and have a diameter that is the same as the inner diameter of the tube body (1); and a connecting block (2) is fixedly connected to the outer surface of the cover plate (106).

4. A heat exchanger for chemical engineering according to claim 1, characterized in that: The inner surface of the first flange (201) is fixedly connected to a connecting block (2), one side of the first flange (201) is fixedly connected to a limiting block (202), the outer surface of the limiting block (202) is fixedly connected to a sealing gasket (203), a limiting groove (205) is provided in the middle of the other side of the second flange (204), the inner surface of the limiting groove (205) is movably connected to the limiting block (202), a sealing groove (206) is provided on the outside of the limiting groove (205), and the inner surface of the sealing groove (206) is movably connected to the sealing gasket (203).

5. A heat exchanger for chemical engineering according to claim 1, characterized in that: A partition plate (301) is fixedly connected to the middle of the inner surface of the pipe box (3), a cover plate (106) is fixedly connected to the other side of the partition plate (301), a cold flow inlet (302) is fixedly connected to the bottom of the outer surface of the pipe box (3), and a cold flow outlet (303) is fixedly connected to the top of the outer surface of the pipe box (3).

6. A heat exchanger for chemical engineering according to claim 1, characterized in that: The inner surface of the thermal insulation sleeve (4) is provided with a cylindrical sleeve inner wall (401), the cylindrical sleeve inner wall (401) is movably connected to the tube body (1), the outer surface of the thermal insulation sleeve (4) is movably connected to the cylindrical sleeve outer wall (402), two places on the front of the cylindrical sleeve outer wall (402) are fixedly connected to straps (403), the back of the straps (403) is fixedly connected to a Velcro hook surface (404), and the bottom of the outer surface of the cylindrical sleeve outer wall (402) is fixedly connected to a Velcro fleece surface (405).

7. A heat exchanger for chemical engineering according to claim 6, characterized in that: The fiber cloth attached to the surface of the thermal insulation sleeve (4) is glass fiber cloth or carbon fiber cloth.

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