Shell-and-tube heat exchanger with isolation protective film

Abstract

The utility model discloses a shell-and-tube heat exchanger with an isolation protective film, which comprises a shell and an end part, paint films are fixedly connected to the inner walls of the shell and the end part, and each paint film comprises a waterproof coating; the inner side face of the waterproof coating is fixedly connected with an organic silicon modified epoxy anti-corrosion coating. According to the shell-and-tube heat exchanger with the isolation protective film, the waterproof coating, the organic silicon modified epoxy anticorrosive coating, the polyurethane coating, the phenolic aldehyde acid-resistant coating, the high-density polyethylene coating and the polypropylene coating are arranged, so that the phenomenon of internal corrosion is avoided through the waterproof coating; the organic silicon modified epoxy anticorrosive coating has good durability and protection performance on corrosion of chloride ion components in high-temperature sewage, the polyurethane coating and the phenolic aldehyde acid-resistant coating can resist acid gas, and the high-density polyethylene coating and the polypropylene coating are matched for use, so that the influence of the high-temperature sewage on equipment can be reduced, and the service life of the equipment is prolonged. Therefore, the use effect is improved, and good durability and protection performance are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a shell and tube heat exchanger with an isolation protective film. Background Art

[0002] A shell-and-tube heat exchanger, also known as a tubular heat exchanger, consists of a shell, heat transfer tube bundles, tube sheets, baffles, and a tube box. The shell is typically cylindrical, housing the tube bundles, which are secured to the tube sheets at both ends. The two fluids involved in the heat exchange are: one flows inside the tubes, known as the tube-side fluid; the other flows outside the tubes, known as the shell-side fluid.

[0003] After searching, Chinese patent publication (announcement) No. CN217929900U discloses a shell and tube heat exchanger, which includes an outer shell; a clamping mechanism, the clamping mechanism is provided with two groups, each group of clamping mechanisms includes a clamping seat, a clamping claw, a limiting slide rod, and a bidirectional screw, and there are two clamping claws and two limiting slide rods. The clamping seat is fixedly connected to the circumferential surface of the outer shell, and the two limiting slide rods are fixedly connected to the clamping seat, and the two clamping claws are slidably connected to the clamping seat, and the two clamping claws are slidably connected to the circumferential surface of the two limiting slide rods. Through this device, when the device is lifted by a crane, the columnar wall or steel is clamped by the clamping mechanism to prevent the device from shaking during installation, and then the device is installed through the U-shaped mounting plate, which effectively improves the installation efficiency.

[0004] Although the heat exchanger of the above patent is convenient for lifting and installation, it does not have the effect of corrosion resistance. Due to the influence of environmental factors, the inner wall of the heat exchanger is easily corroded after long-term use, resulting in damage to the heat exchanger, reducing the service life and causing great losses to the user. Therefore, it is necessary to design a shell and tube heat exchanger with an isolation protective film to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a shell and tube heat exchanger with an isolation protective film, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A shell and tube heat exchanger with an isolation protective film includes a shell and an end portion, wherein the inner walls of the shell and the end portion are fixedly connected with a paint film, and the paint film includes a waterproof coating; the inner side surface of the waterproof coating is fixedly connected with an organosilicon-modified epoxy anti-corrosion coating, the inner side surface of the organosilicon-modified epoxy anti-corrosion coating is fixedly connected with a polyurethane coating, the inner side surface of the polyurethane coating is fixedly connected with a phenolic acid-resistant coating, the inner side surface of the phenolic acid-resistant coating is fixedly connected with a high-density polyethylene coating, and the inner side surface of the high-density polyethylene coating is fixedly connected with a polypropylene coating.

[0008] In order to facilitate the support of the heat exchange tube, the utility model provides a shell and tube heat exchanger with an isolation protective film. A fixing ring is fixedly connected to one side of the inner side of the shell, and a first connecting plate is movably connected to the outer surface of the fixing ring. The heat exchange tube is inserted into the interior of the first connecting plate, and a second connecting plate is sleeved on one side of the outer surface of the heat exchange tube.

[0009] In order to facilitate the connection of heat exchange tubes, as a shell and tube heat exchanger with an isolation protective film of the utility model, the outer surface of the heat exchange tube is provided with a tube clamp on one side close to the first connecting plate and the second connecting plate, and the outer surface of the tube clamp is threadedly connected with a first bolt.

[0010] In order to achieve the effect of enhancing the connection sealing, as a shell and tube heat exchanger with an isolation protective film of the utility model, a partition is fixedly connected to the middle of the inner side surface of the end, the outer surface of the partition is fixedly connected to a baffle, the edge of the outer surface of the baffle is fixedly connected to a first sealing ring, and the outer surface of the baffle is fixedly connected to a second sealing ring on the side close to the heat exchange tube.

[0011] In order to facilitate the connection of the ends, as a shell and tube heat exchanger with an isolation protective film of the present invention, the shell and one end of the end are fixedly connected with a flange, and the outer surface of the flange is threaded with a second bolt.

[0012] In order to facilitate the entry and exit of the medium, the utility model is a shell and tube heat exchanger with an isolation protective film. One side of the upper surface of the shell is fixedly connected to the first delivery pipe, the upper surface of the end is fixedly connected to the second delivery pipe, one side of the lower surface of the shell is fixedly connected to the first output pipe, and the lower surface of the end is fixedly connected to the second output pipe.

[0013] In order to facilitate the support of the shell, as a shell and tube heat exchanger with an isolation protective film of the utility model, both sides of the lower surface of the shell are fixedly connected with arc plates, the lower surface of the arc plates is fixedly connected with a support plate, and the lower surface of the support plate is fixedly connected with a bottom plate.

[0014] In order to achieve the effect of enhancing structural stability, as a shell and tube heat exchanger with an isolation protective film of the utility model, both sides of the outer surface of the support plate are fixedly connected with reinforcing ribs, the reinforcing ribs are fixedly connected to the base plate, and mounting holes are opened at the four corners of the upper surface of the base plate, and the mounting holes pass through the base plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by setting up a waterproof coating, a silicone-modified epoxy anti-corrosion coating, a polyurethane coating, a phenolic acid-resistant coating, a high-density polyethylene coating and a polypropylene coating, the waterproof coating makes it difficult for water to enter the inside of the heat exchanger, thereby avoiding the phenomenon of internal corrosion. The silicone-modified epoxy anti-corrosion coating has excellent heat resistance, corrosion resistance, oil resistance, hydrophobicity, moisture resistance and good electrical insulation properties, and has good durability and protection against the corrosion of chloride ion components in high-temperature sewage. The polyurethane coating and the phenolic acid-resistant coating can resist acidic gases. The high-density polyethylene coating and the polypropylene coating are used in combination to reduce the impact of high-temperature sewage on the equipment, thereby improving the use effect and having good durability and protection.

[0017] 2. In the utility model, through the arrangement of the first connecting plate, the second connecting plate, the heat exchange tube, the tube clamp, the first sealing ring and the second sealing ring, the first connecting plate and the second connecting plate and the tube clamp are used in conjunction with each other to connect multiple heat exchange tubes, saving installation time and steps, improving people's maintenance and replacement efficiency of parts, ensuring stability during use, reducing the impact of the medium on the heat exchange tube, preventing deformation of the pipeline, and increasing service life. The first sealing ring strengthens the sealing of the connection between the end and the inner side of the shell, and at the same time can limit the right side of the second connecting plate to ensure the stability of the heat exchange tube. The second sealing ring increases the sealing of the connection between the heat exchange tube and the baffle to avoid leakage, and the sealing effect is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the paint film structure of an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the housing according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the end portion of an embodiment of the present utility model.

[0023] In the figure: 1. Shell; 2. End; 3. Paint film; 4. Waterproof coating; 5. Silicone-modified epoxy anti-corrosion coating; 6. Polyurethane coating; 7. Phenolic acid-resistant coating; 8. High-density polyethylene coating; 9. Polypropylene coating; 10. Fixing ring; 11. First connecting plate; 12. Heat exchange tube; 13. Second connecting plate; 14. Pipe clamp; 15. First bolt; 16. Partition; 17. Baffle; 18. First sealing ring; 19. Second sealing ring; 20. Flange; 21. Second bolt; 22. First delivery pipe; 23. Second delivery pipe; 24. First output pipe; 25. Second output pipe; 26. Arc plate; 27. Support plate; 28. Bottom plate; 29. ​​Reinforcement rib; 30. Mounting hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example

[0026] like Figure 1-5 As shown, a shell and tube heat exchanger with an isolation protective film includes a shell 1 and an end 2. The inner walls of the shell 1 and the end 2 are fixedly connected with a paint film 3, and the paint film 3 includes a waterproof coating 4; the inner side surface of the waterproof coating 4 is fixedly connected with an organosilicon-modified epoxy anti-corrosion coating 5, the inner side surface of the organosilicon-modified epoxy anti-corrosion coating 5 is fixedly connected with a polyurethane coating 6, the inner side surface of the polyurethane coating 6 is fixedly connected with a phenolic acid-resistant coating 7, the inner side surface of the phenolic acid-resistant coating 7 is fixedly connected with a high-density polyethylene coating 8, and the inner side surface of the high-density polyethylene coating 8 is fixedly connected with a polypropylene coating 9.

[0027] When used specifically, the paint film 3 is composed of a plurality of coatings and is arranged on the inner wall of the shell 1 and the end 2 by spraying or other means through the arrangement of the waterproof coating 4, the silicone modified epoxy anti-corrosion coating 5, the polyurethane coating 6, the phenolic acid-resistant coating 7, the high-density polyethylene coating 8 and the polypropylene coating 9. The protective property of the inner side of the heat exchanger can be enhanced. The waterproof coating 4 makes it difficult for water to enter the heat exchanger, avoids the phenomenon of internal corrosion, improves the performance and makes it more durable. The silicone modified epoxy anti-corrosion coating 5 is a special composite material with excellent heat resistance, corrosion resistance, oil resistance, It is hydrophobic, moisture-proof and has good electrical insulation properties. It has good durability and protective performance against the corrosion of chloride ion components in high-temperature sewage, improves the safety and stability of the equipment, and effectively protects the equipment from heat and corrosion. The polyurethane coating 6 and the phenolic acid-resistant coating 7 have certain resistance to dilute acid and acidic salt solutions, can resist acidic gases, and greatly increase the service life of the equipment. The high-density polyethylene coating 8 has excellent heat resistance and cold resistance, good chemical stability, and is used in conjunction with the polypropylene coating 9 to reduce the impact of high-temperature sewage on the equipment, thereby improving the use effect.

[0028] In this embodiment, a fixing ring 10 is fixedly connected to one side of the inner side of the shell 1, and a first connecting plate 11 is movably connected to the outer surface of the fixing ring 10. A heat exchange tube 12 is inserted into the inside of the first connecting plate 11, and a second connecting plate 13 is sleeved on one side of the outer surface of the heat exchange tube 12.

[0029] During specific use, through the setting of the heat exchange tube 12, the first connecting plate 11 and the second connecting plate 13 are sleeved on both sides of the heat exchange tube 12, and multiple heat exchange tubes 12 can be connected to ensure stability during use, reduce the impact of the medium on the heat exchange tube 12, prevent the deformation of the pipeline, and improve the service life. The bent end of the heat exchange tube 12 limits the right side of the first connecting plate 11, and the fixing ring 10 and the first sealing ring 18 can fully press and fix the installed first connecting plate 11 and the second connecting plate 13, saving installation time and steps, and improving people's maintenance and replacement efficiency. Multiple heat exchange tubes 12 can extend the residence time of the medium, thereby further improving the heat exchange effect.

[0030] In this embodiment, a tube clamp 14 is sleeved on one side of the outer surface of the heat exchange tube 12 close to the first connecting plate 11 and the second connecting plate 13 , and a first bolt 15 is threadedly connected to the outer surface of the tube clamp 14 .

[0031] During specific use, the pipe clamp 14 is set and the first bolt 15 is used to facilitate the installation of the pipe clamp 14. The pipe clamp 14 limits the right side of the first connecting plate 11 and the left side of the second connecting plate 13 to avoid left and right shaking during use, and at the same time facilitates the later replacement and maintenance of the heat exchange tube 12.

[0032] In this embodiment, a partition 16 is fixedly connected to the middle of the inner side surface of the end portion 2, a baffle 17 is fixedly connected to the outer surface of the partition 16, a first sealing ring 18 is fixedly connected to the edge of the outer surface of the baffle 17, and a second sealing ring 19 is fixedly connected to the side of the outer surface of the baffle 17 close to the heat exchange tube 12.

[0033] During specific use, through the setting of the first sealing ring 18 and the second sealing ring 19, the partition 16 and the baffle 17 cooperate with each other to divide the interior of the end 2 into two use spaces to prevent the medium from being discharged without heat exchange. The baffle 17 is used to support the first sealing ring 18. The first sealing ring 18 can strengthen the sealing of the connection between the end 2 and the inner side of the shell 1, and at the same time limit the right side of the second connecting plate 13 to ensure the stability of the use of the heat exchange tube 12. The second sealing ring 19 increases the sealing of the connection between the heat exchange tube 12 and the baffle 17 to avoid leakage, and the sealing effect is enhanced.

[0034] In this embodiment, a flange 20 is fixedly connected to one end of the housing 1 and the end portion 2 , and a second bolt 21 is threadedly connected to the outer surface of the flange 20 .

[0035] During specific use, by setting the flange 20, the shell 1 and the end 2 are fixed by two sets of flanges 20 and the second bolts 21, which facilitates the installation of the two and facilitates disassembly and maintenance when damaged.

[0036] In this embodiment, a first delivery pipe 22 is fixedly connected to one side of the upper surface of the shell 1, a second delivery pipe 23 is fixedly connected to the upper surface of the end 2, a first output pipe 24 is fixedly connected to one side of the lower surface of the shell 1, and a second output pipe 25 is fixedly connected to the lower surface of the end 2.

[0037] During specific use, through the arrangement of the first delivery pipe 22 and the second delivery pipe 23, the first delivery pipe 22 and the second delivery pipe 23 facilitate the delivery of the two media to be heat exchanged externally into the interior of the device, and the first output pipe 24 and the second output pipe 25 can output the two media after heat exchange to the outside.

[0038] In this embodiment, arc-shaped plates 26 are fixedly connected to both sides of the lower surface of the housing 1 , a support plate 27 is fixedly connected to the lower surface of the arc-shaped plate 26 , and a bottom plate 28 is fixedly connected to the lower surface of the support plate 27 .

[0039] During specific use, by setting the support plate 27, the arc plate 26 and the support plate 27 cooperate with each other to support the shell 1 and raise the height of the shell 1 to facilitate the connection of the pipeline at the bottom of the device.

[0040] In this embodiment, reinforcing ribs 29 are fixedly connected to both sides of the outer surface of the support plate 27, and the reinforcing ribs 29 are fixedly connected to the bottom plate 28. Mounting holes 30 are opened at the four corners of the upper surface of the bottom plate 28, and the mounting holes 30 pass through the bottom plate 28.

[0041] During specific use, through the provision of reinforcing ribs 29 and mounting holes 30, multiple reinforcing ribs 29 further strengthen the connection between the support plate 27 and the base plate 28, thereby strengthening the strength of the structure and enhancing its supporting effect. The mounting holes 30 cooperate with external screws to fix the base plate 28 and ensure the stability of the device during use.

[0042] Working principle: During use, the first connecting plate 11 and the second connecting plate 13 are sleeved on both sides of the heat exchange tube 12, and the tube clamp 14 is installed using the first bolt 15. The tube clamp 14 limits the right side of the first connecting plate 11 and the left side of the second connecting plate 13. The bent end of the heat exchange tube 12 limits the right side of the first connecting plate 11. The shell 1 and the end 2 are fixed by two sets of flanges 20 and the second bolts 21. The fixing ring 10 and the first sealing ring 18 press and fix the installed first connecting plate 11 and the second connecting plate 13 in all directions. The first sealing ring 18 strengthens the sealing of the connection between the end 2 and the inner side of the shell 1, and the second sealing ring 19 increases the heat exchange. The sealing connection between the tube 12 and the baffle 17 avoids leakage. The first delivery pipe 22 and the second delivery pipe 23 transport the two media to be heat exchanged outside into the interior of the device. The first output pipe 24 and the second output pipe 25 can output the two media after heat exchange to the outside. The waterproof coating 4 prevents internal rust. The silicone modified epoxy anti-corrosion coating 5 has good durability and protective performance against the corrosion of chloride ion components in high-temperature sewage. The polyurethane coating 6 and the phenolic acid-resistant coating 7 can resist acidic gases. The high-density polyethylene coating 8 and the polypropylene coating 9 are used in combination to reduce the impact of high-temperature sewage on the equipment, thereby improving the use effect.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A shell and tube heat exchanger with an isolation protective film, comprising a shell (1) and an end portion (2), characterized in that: The inner walls of the housing (1) and the end portion (2) are both fixedly connected with a paint film (3), and the paint film (3) includes a waterproof coating (4); The inner side surface of the waterproof coating (4) is fixedly connected to an organosilicon-modified epoxy anti-corrosion coating (5), the inner side surface of the organosilicon-modified epoxy anti-corrosion coating (5) is fixedly connected to a polyurethane coating (6), the inner side surface of the polyurethane coating (6) is fixedly connected to a phenolic acid-resistant coating (7), the inner side surface of the phenolic acid-resistant coating (7) is fixedly connected to a high-density polyethylene coating (8), and the inner side surface of the high-density polyethylene coating (8) is fixedly connected to a polypropylene coating (9).

2. The shell and tube heat exchanger with an isolation protective film according to claim 1, characterized in that: A fixing ring (10) is fixedly connected to one side of the inner side of the shell (1), a first connecting plate (11) is movably connected to the outer surface of the fixing ring (10), a heat exchange tube (12) is inserted into the interior of the first connecting plate (11), and a second connecting plate (13) is sleeved on one side of the outer surface of the heat exchange tube (12).

3. The shell and tube heat exchanger with an isolation protective film according to claim 2, characterized in that: A tube clamp (14) is sleeved on one side of the outer surface of the heat exchange tube (12) close to the first connecting plate (11) and the second connecting plate (13), and a first bolt (15) is threadedly connected to the outer surface of the tube clamp (14).

4. The shell and tube heat exchanger with an isolation protective film according to claim 2, characterized in that: A partition (16) is fixedly connected to the middle of the inner side surface of the end portion (2), a baffle (17) is fixedly connected to the outer surface of the partition (16), a first sealing ring (18) is fixedly connected to the edge of the outer surface of the baffle (17), and a second sealing ring (19) is fixedly connected to the side of the outer surface of the baffle (17) close to the heat exchange tube (12).

5. The shell and tube heat exchanger with an isolation protective film according to claim 1, characterized in that: The housing (1) and one end of the end portion (2) are both fixedly connected with a flange (20), and the outer surface of the flange (20) is threadedly connected with a second bolt (21).

6. The shell and tube heat exchanger with an isolation protective film according to claim 1, characterized in that: A first delivery pipe (22) is fixedly connected to one side of the upper surface of the shell (1), a second delivery pipe (23) is fixedly connected to the upper surface of the end portion (2), a first output pipe (24) is fixedly connected to one side of the lower surface of the shell (1), and a second output pipe (25) is fixedly connected to the lower surface of the end portion (2).

7. The shell and tube heat exchanger with an isolation protective film according to claim 1, characterized in that: Both sides of the lower surface of the shell (1) are fixedly connected with an arc-shaped plate (26), the lower surface of the arc-shaped plate (26) is fixedly connected with a support plate (27), and the lower surface of the support plate (27) is fixedly connected with a bottom plate (28).

8. The shell and tube heat exchanger with an isolation protective film according to claim 7, characterized in that: Both sides of the outer surface of the support plate (27) are fixedly connected with reinforcing ribs (29), and the reinforcing ribs (29) are fixedly connected to the bottom plate (28). The four corners of the upper surface of the bottom plate (28) are provided with mounting holes (30), and the mounting holes (30) pass through the bottom plate (28).

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