Corrosion-resistant and high-pressure-resistant shell-and-tube heat exchanger

Abstract

The invention relates to the technical field of heat exchanger equipment, and discloses an anti-corrosion and high-pressure-resistant shell-and-tube heat exchanger which comprises a shell, a front tube box is arranged on one side of the shell, a rear tube box is arranged on the other side of the shell, an inner cavity is formed in the middle of the inner side of the shell, and first connecting flanges are arranged at the two ends of the shell correspondingly; the adjacent sides of the front tube box and the rear tube box are each provided with a second connecting flange. By means of the baffle plates arranged in multiple stages, when the whole device is used, the baffle plates show unique self-adaptive capacity, the shapes of the baffle plates can be sensitively adjusted according to the flow in the device, and no matter which state the flow is in, the baffle plates can accurately achieve efficient guiding and disturbance on fluid; due to the characteristic, the heat exchanger is always kept in an efficient operation state under complex and changeable working conditions, the energy utilization efficiency is effectively improved, the energy consumption is reduced, and the problems of performance reduction and the like caused by frequent fluctuation of the working conditions can be powerfully reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchanger equipment, in particular to a corrosion-resistant and high-pressure resistant shell and tube heat exchanger. Background Art

[0002] Shell and tube heat exchanger, as a key equipment for heat exchange in the industrial field, is widely used. Its structure is mainly composed of shell, tube bundle, tube sheet and head. When working, two fluids of different temperatures flow through the tube side and shell side respectively. For example, in chemical production, hot reaction materials flow in the tube, while cooling medium flows in the outer tube side, and heat is transferred through the tube wall to achieve the purpose of cooling the hot fluid and heating the cold fluid. It has many advantages. First, the structure is strong, can withstand high pressure and temperature, and is suitable for a variety of complex working conditions. Secondly, it is easy to manufacture and maintain, and the cost is relatively low. Furthermore, the heat exchange area can be flexibly adjusted according to actual needs, and different heat exchange requirements can be met by increasing or decreasing the number of tube bundles. For this reason, shell and tube heat exchangers play an indispensable role in many industries such as petrochemical, electric power, refrigeration, etc., greatly improving energy utilization efficiency and promoting efficient operation of industrial production.

[0003] As one of the main structural parts of the shell and tube heat exchanger, the baffle can guide the flow direction of the shell-side fluid. The shell-side fluid usually has a complex flow state in the shell. If there is no baffle, short circuit and other conditions that are not conducive to heat exchange are prone to occur. The baffle can force the fluid to cross the tube bundle multiple times in a specific path, allowing the fluid to flow in a zigzag manner, increasing the degree of disturbance of the fluid, enhancing the heat transfer effect, and improving the heat exchange efficiency. However, the existing baffles are basically fixed. As the flow rate of the fluid in the equipment changes, the baffle will not change accordingly. Therefore, when the flow rate in the equipment is small, the baffle will have less disturbance to the fluid morphology, resulting in a certain flow dead zone in the equipment, and will also cause the overall equipment heat transfer effect to decrease. Therefore, technical personnel in this field have proposed a corrosion-resistant and high-pressure shell and tube heat exchanger to solve the above-mentioned technical problems. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a corrosion-resistant and high-pressure shell and tube heat exchanger, which solves the problem that the existing baffles cannot be changed with the change of the flow volume in the equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a corrosion-resistant and high-pressure shell and tube heat exchanger, comprising a shell, a front tube box is arranged on one side of the shell, a rear tube box is arranged on the other side of the shell, an inner cavity is opened in the middle of the inner side of the shell, connecting flange 1 is arranged at both ends of the shell, connecting flange 2 is arranged on the adjacent side of the front tube box and the rear tube box, and the connecting flange 1 and connecting flange 2 on the same side are connected by connecting bolts, a fluid inlet pipe is arranged in the middle of the top end of the front tube box, a fluid outlet pipe is arranged in the middle of the bottom end of the front tube box, the interiors of the fluid inlet pipe and the fluid outlet pipe are both connected with the interior of the front tube box, a coolant discharge pipe is arranged on the side of the middle of the top end of the shell close to the fluid inlet pipe, and a coolant inlet pipe is arranged on the side of the middle of the bottom end of the shell close to the rear tube box, and the interiors of the coolant discharge pipe and the coolant inlet pipe are both connected with the interior of the inner cavity.

[0006] Preferably, a partition plate is fixedly connected to one end of the shell near the front pipe box, a partition plate one is fixedly connected to the middle of the inner cavity, and one end of the partition plate one is connected to the middle of the partition plate, a partition plate two is fixedly connected to the inner middle of the front pipe box, a plurality of conveying pipes are equidistantly fixedly connected to the middle of the partition plate, and both ends of the conveying pipes pass through the partition plate and extend outward.

[0007] Preferably, an inlet cavity is provided at the upper portion of the partition plate 2, and an outlet cavity is provided at the lower portion of the partition plate 2, and a plurality of spoilers are fixedly connected in an equidistant and staggered manner inside the inlet cavity, and one side of the spoiler is respectively connected to the inner wall of the front pipe box or the corresponding position of one side of the partition plate.

[0008] Preferably, a plurality of sliding grooves are equidistantly provided on the upper and lower sides of the inner wall of the conveying pipe, the interior of the upper sliding grooves are slidably connected to the top wall baffles, and the interior of the lower sliding grooves are slidably connected to the bottom wall baffles, and the thickness of the bottom wall baffles is less than the thickness of the top wall baffles.

[0009] Preferably, a plurality of baffles are equidistantly fixedly connected to the upper and lower sides of the inner cavity, and the baffles are composed of an inner wall connecting plate, a horizontal spoiler and a vertical spoiler from top to bottom. The bottom end of the inner wall connecting plate is rotatably connected to the horizontal spoiler, and the middle part of the bottom end of the horizontal spoiler is equidistantly rotatably connected to a plurality of connecting rods, the bottom ends of the connecting rods are fixedly connected to the vertical spoilers, and a limited seat is provided in the middle part of the top end of the connecting rods.

[0010] Preferably, a plurality of outer ring seats are equidistantly and fixedly connected to the conveying pipe, a movable position is provided in the middle of the outer wall of the outer ring seat, protrusions are provided at both ends of the outer wall of the outer ring seat, a plurality of protruding columns are arranged in a circumferential array near the edge on one adjacent side of the protrusion, and an outer ring sleeve is slidably connected to the movable position.

[0011] Preferably, supporting seats are provided on both sides of the middle part of the bottom end of the shell, the middle part of the bottom end of the supporting seat is fixedly connected with a supporting seat, and the bottom of the supporting seat is provided with a rubber bottom pad.

[0012] Preferably, a silicone ring gasket is provided on the end of the fluid inlet pipe and the fluid outlet pipe away from the front pipe box, and a rubber ring gasket is provided on the end of the coolant discharge pipe and the coolant inlet pipe away from the shell.

[0013] Working principle: When the whole device is in use, the material that needs to be cooled enters the inlet cavity of the front tube box through the fluid inlet pipe on the front tube box. At this time, the coolant also enters the inner cavity through the coolant inlet pipe on the shell. Then, as the liquid in the cavity and the inner cavity continues to increase, the high-temperature liquid entering the cavity enters the delivery pipe on the partition plate. At the same time, as the cooling liquid at the bottom of the inner cavity is continuously injected, its cooling liquid also enters the upper part of the inner cavity through the rear tube box. At this time, the heat in the high-temperature liquid in the delivery pipe is transferred to the cooling liquid in the inner cavity through the delivery pipe, and the heat emitted by it is absorbed and cooled by the cooling liquid at the same time. Finally, the material in the delivery pipe after cooling is discharged into the discharge cavity in the front tube box, and then discharged through the fluid outlet pipe at the bottom of the front tube box. At the same time, the coolant that has absorbed a lot of heat and heated up in the inner cavity is discharged through the coolant discharge pipe on the shell. As the high-temperature liquid enters the cavity, the heat in the high-temperature liquid in the delivery pipe is transferred to the cooling liquid in the inner cavity through the delivery pipe. The liquid is continuously injected. When the high-temperature liquid enters the inlet chamber of the front tube box through the fluid inlet pipe on the front tube box, the high-temperature liquid is blocked by the multiple baffles in the inlet chamber, so that the high-temperature liquid entering the inlet chamber passes through the baffles at various positions in turn before flowing into the bottom of the inlet chamber, thereby increasing the residence time of the high-temperature liquid inside the device, so that the heat in the high-temperature liquid can be completely absorbed. Then, as the high-temperature liquid in the inlet chamber enters the delivery pipe, the liquid entering the delivery pipe pushes the bottom wall baffle and the top wall baffle in the sliding groove to move synchronously. When the bottom wall baffle and the top wall baffle move, the high-temperature liquid in the delivery pipe is blocked again, so that the residence time of the high-temperature liquid entering the delivery pipe is greatly increased. In addition, the bottom wall baffle and the top wall baffle can be used to synchronously block and reduce the pressure of the high-temperature liquid in the delivery pipe, thereby improving the high-pressure resistance of the overall equipment when in use.At the same time, when the cooling liquid enters the inner cavity through the cooling liquid inlet pipe on the shell, if the amount of liquid in the inner cavity is small and the liquid level is low, the liquid in the inner cavity will push the vertical spoiler at the bottom of the horizontal spoiler to rotate when it flows, and the vertical spoiler drives the connecting rod on it to rotate synchronously while rotating, thereby realizing the disturbing flow treatment of the cooling liquid in the inner cavity, so that the cooling liquid in the inner cavity can also have a disturbing effect when the liquid level is low. If the amount of liquid in the inner cavity is large, the upper layer of liquid in the inner cavity will push the horizontal spoiler at the bottom of the inner wall connecting plate to rotate horizontally when it flows, and the horizontal spoiler rotates to achieve the disturbing flow treatment of the upper layer of liquid, and when the horizontal spoiler rotates and tilts, the lower liquid in the inner cavity When the cooling liquid flows in the inner cavity, the cooling liquid flowing in the inner cavity synchronously drives the outer ring sleeve on the outer ring seat to move synchronously, so that the outer ring sleeve moves synchronously on the moving position of the outer ring seat, and when the outer ring sleeve moves, it collides with the protruding column on the protruding part, thereby generating vibration force, and the impurities remaining on the outer wall of the conveying pipe due to long-term use of the cooling liquid are vibrated and separated, and the liquid in the inner cavity is also affected by the baffles at different positions when flowing, so that the cooling liquid after the disturbance treatment is repeatedly circulated, thereby ensuring the normal heat exchange treatment of the high-temperature liquid in the conveying pipe. ;

[0014] The present invention provides a corrosion-resistant and high-pressure resistant shell and tube heat exchanger. It has the following beneficial effects:

[0015] 1. The baffles of the present invention are arranged in multiple stages. When the overall device is in use, the baffles show unique adaptive ability and can sensitively adjust their own shapes according to the flow rate in the device. No matter what state the flow rate is in, the baffles can accurately achieve efficient guidance and disturbance of the fluid. This feature enables the heat exchanger to always maintain an efficient operating state under complex and changeable working conditions, greatly broadening the scope of applicable working conditions. It not only effectively improves energy utilization efficiency and reduces energy consumption, but also can effectively reduce performance degradation caused by frequent fluctuations in working conditions, and provides a solid guarantee for the stable and efficient operation of related equipment.

[0016] 2. The present invention adds multiple flow-blocking settings inside the entrance cavity and the delivery pipe. When the entire device is in use, the multiple flow-blocking settings can greatly extend the residence time of the high-temperature liquid in the device, which means that the high-temperature liquid has more time to exchange heat with the heat exchange medium, thereby significantly improving the heat exchange efficiency and making better use of thermal energy. At the same time, the flow-blocking plates at different positions cooperate with each other to effectively weaken the impact force of the liquid entering the device. In this way, the device's ability to withstand high pressure is enhanced, reducing the risk of equipment damage due to high-pressure impact, extending the service life of the device, and ensuring that the equipment operates stably and reliably under high-pressure environments.

[0017] 3. The present invention adds a vibration conduction component to the outer wall of the conveying pipe. During actual operation, the vibration conduction component and the spoiler work in perfect harmony to exert a powerful synergistic effect. When the equipment is running, the precise vibration generated by the vibration conduction component can effectively shake off and separate the coolant impurities that have been attached to the outer wall surface of the conveying pipe for a long time. In this way, the outer wall of the conveying pipe can be kept clean, which greatly guarantees the heat exchange effect of the entire device and makes heat transfer smoother and more efficient. Moreover, the removal of impurities avoids the problem of poor heat dissipation of the coolant caused by the accumulation of impurities, thereby reducing the consumption of coolant, saving operating costs for users, and achieving the dual goals of energy saving and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front left side structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the front right side structure of the present invention;

[0020] Figure 3 It is a schematic cross-sectional view of the internal structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the internal structure of the housing of the present invention;

[0022] Figure 5 It is a schematic diagram of the baffle structure of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the vertical spoiler of the present invention;

[0024] Figure 7 It is a cross-sectional schematic diagram of the internal structure of the delivery pipe of the present invention;

[0025] Figure 8 It is a schematic diagram of the local structure of the outer sleeve ring seat of the present invention.

[0026] Among them, 1. front pipe box; 2. fluid inlet pipe; 3. coolant discharge pipe; 4. shell; 5. rear pipe box; 6. connecting flange 1; 7. supporting seat; 8. supporting seat; 9. connecting flange 2; 10. fluid outlet pipe; 11. coolant inlet pipe; 12. spoiler; 13. outer ring seat; 14. baffle; 15. partition plate 1; 16. inner cavity; 17. partition plate 2; 18. inner wall connecting plate; 19. horizontal spoiler; 20. vertical spoiler; 21. connecting rod; 22. limit seat; 23. conveying pipe; 24. step partition; 25. inlet cavity; 26. outlet cavity; 27. sliding groove; 28. bottom wall spoiler; 29. ​​top wall spoiler; 30. protruding column; 31. outer ring sleeve; 32. protruding part; 33. moving position. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] Please refer to the attached Figure 1 - Attachment Figure 8 The embodiment of the present invention provides a corrosion-resistant and high-pressure shell and tube heat exchanger, including a shell 4, a front tube box 1 is provided on one side of the shell 4, a rear tube box 5 is provided on the other side of the shell 4, an inner cavity 16 is opened in the middle of the inner side of the shell 4, and a connecting flange 1 6 is provided at both ends of the shell 4. A connecting flange 2 9 is provided on the adjacent side of the front tube box 1 and the rear tube box 5, and the connecting flange 1 6 and the connecting flange 2 9 on the same side are connected by connecting bolts. A fluid inlet pipe 2 is provided in the middle of the top end of the front tube box 1, and a fluid outlet pipe 10 is provided in the middle of the bottom end of the front tube box 1. The interiors of the fluid inlet pipe 2 and the fluid outlet pipe 10 are both connected to the interior of the front tube box 1. A coolant discharge pipe 3 is provided on the side of the middle of the top end of the shell 4 close to the fluid inlet pipe 2, and a coolant inlet pipe 11 is provided on the side of the middle of the bottom end of the shell 4 close to the rear tube box 5. The interiors of the coolant discharge pipe 3 and the coolant inlet pipe 11 are both connected to the interior of the inner cavity 16.

[0029] After the high-temperature material is processed, the material that needs to be cooled enters the inlet chamber 25 of the front tube box 1 through the fluid inlet pipe 2 on the front tube box 1. At this time, the coolant also enters the inner chamber 16 through the coolant inlet pipe 11 on the shell 4. Then, as the liquid in the inlet chamber 25 and the inner chamber 16 continues to increase, the high-temperature liquid in the inlet chamber 25 enters the delivery pipe 23 on the partition plate 24. At the same time, the cooling liquid at the bottom of the inner chamber 16 also enters the upper part of the inner chamber 16 through the rear tube box 5 as the liquid is continuously injected. At this time, the heat in the high-temperature liquid in the delivery pipe 23 is transferred to the cooling liquid in the inner chamber 16 through the delivery pipe 23, and the heat emitted by it is simultaneously absorbed and cooled by the cooling liquid.

[0030] A partition plate 24 is fixedly connected to one end of the shell 4 close to the front pipe box 1, a partition plate 15 is fixedly connected to the middle of the inner cavity 16, and one end of the partition plate 15 is connected to the middle of the partition plate 24, a partition plate 2 17 is fixedly connected to the middle of the inner side of the front pipe box 1, and a plurality of conveying pipes 23 are fixedly connected to the middle of the partition plate 24 at equal intervals, and both ends of the conveying pipes 23 pass through the partition plate 24 and extend outward.

[0031] Finally, the material in the conveying pipe 23 after cooling treatment is discharged into the discharge cavity 26 in the front pipe box 1, and then discharged through the fluid outlet pipe 10 at the bottom of the front pipe box 1. At the same time, the coolant in the inner cavity 16 that has absorbed a large amount of heat and heated up is discharged through the coolant discharge pipe 3 on the shell 4.

[0032] Please refer to the attached Figure 3 An inlet chamber 25 is provided at the upper part of the partition plate 17, and an outlet chamber 26 is provided at the lower part of the partition plate 17. A plurality of spoilers 12 are fixedly connected to the interior of the inlet chamber 25 at equal intervals and staggered, and one side of the spoiler 12 is respectively connected to the inner wall of the front pipe box 1 or the corresponding position of one side of the partition plate 24.

[0033] As the high-temperature liquid is continuously injected into the entrance chamber 25, when the high-temperature liquid enters the entrance chamber 25 in the front tube box 1 through the fluid inlet pipe 2 on the front tube box 1, the high-temperature liquid is blocked by the multiple baffles 12 in the entrance chamber 25, so that the high-temperature liquid entering the entrance chamber 25 passes through the baffles 12 at various positions in turn before flowing into the bottom of the entrance chamber 25, thereby increasing the residence time of the high-temperature liquid inside the device and allowing the heat in the high-temperature liquid to be completely absorbed.

[0034] Please refer to the attached Figure 7A plurality of sliding grooves 27 are evenly spaced apart on the upper and lower sides of the inner wall of the delivery pipe 23. The interior of the upper sliding grooves 27 is slidably connected to a top wall baffle 29, and the interior of the lower sliding grooves 27 is slidably connected to a bottom wall baffle 28. The thickness of the bottom wall baffle 28 is less than that of the top wall baffle 29.

[0035] Then, as the high-temperature liquid entering the cavity 25 enters the delivery pipe 23, the liquid entering the delivery pipe 23 pushes the bottom wall baffle 28 and the top wall baffle 29 in the sliding groove 27 to move synchronously. When the bottom wall baffle 28 and the top wall baffle 29 move, the high-temperature liquid in the delivery pipe 23 is blocked again, so that the residence time of the high-temperature liquid entering the delivery pipe 23 is greatly increased, and the high-temperature liquid in the delivery pipe 23 can also be blocked and depressurized synchronously by the bottom wall baffle 28 and the top wall baffle 29, thereby improving the high-pressure resistance of the overall equipment when in use.

[0036] Please refer to the attached Figure 5 - Attachment Figure 6 The upper and lower sides of the inner cavity 16 are evenly and fixedly connected with a plurality of baffles 14, which are composed of an inner wall connecting plate 18, a horizontal spoiler 19 and a vertical spoiler 20 from top to bottom. The bottom end of the inner wall connecting plate 18 is rotatably connected with the horizontal spoiler 19, and the middle part of the bottom end of the horizontal spoiler 19 is rotatably connected with a plurality of connecting rods 21, the bottom ends of the connecting rods 21 are fixedly connected with the vertical spoilers 20, and a limited position seat 22 is provided in the middle part of the top end of the connecting rods 21.

[0037] At the same time, when the cooling liquid enters the inner cavity 16 through the cooling liquid inlet pipe 11 on the shell 4, if the amount of liquid in the inner cavity 16 is small and the liquid level is low, the liquid in the inner cavity 16 will push the vertical spoiler 20 at the bottom of the horizontal spoiler 19 to rotate when it flows. The vertical spoiler 20 drives the connecting rod 21 thereon to rotate synchronously while rotating, thereby realizing the spoiler treatment of the cooling liquid in the inner cavity 16, so that the cooling liquid in the inner cavity 16 can also have a spoiler effect when the liquid level is low.

[0038] If the amount of liquid in the inner cavity 16 is large, the upper liquid in the inner cavity 16 will push the horizontal spoiler 19 at the bottom of the inner wall connecting plate 18 to rotate horizontally when flowing. The horizontal spoiler 19 rotates to achieve a disruptive treatment of the upper liquid. And when the horizontal spoiler 19 rotates and tilts, the lower liquid in the inner cavity 16 flows and synchronously drives the vertical spoiler 20 at the bottom of the horizontal spoiler 19 to rotate vertically, thereby achieving a disruptive treatment of the lower liquid in the delivery pipe 23.

[0039] Please refer to the attached Figure 8A plurality of outer ring seats 13 are fixedly connected to the conveying pipe 23 at equal intervals, a movable position 33 is arranged in the middle of the outer wall of the outer ring seat 13, protrusions 32 are arranged at both ends of the outer wall of the outer ring seat 13, a plurality of protruding columns 30 are arranged in a circular array near the edge on one side adjacent to the protruding portion 32, and an outer ring sleeve 31 is slidably connected to the movable position 33.

[0040] And when the cooling liquid flows in the inner cavity 16, the cooling liquid flowing in the inner cavity 16 synchronously drives the outer ring sleeve 31 on the outer ring seat 13 to move synchronously, so that the outer ring sleeve 31 moves synchronously on the moving position 33 of the outer ring seat 13, and when the outer ring sleeve 31 moves, it collides with the protruding column 30 on the protruding part 32, thereby generating a vibration force, and vibrating and separating the impurities remaining on the outer wall of the conveying pipe 23 due to long-term use of the cooling liquid, and the liquid in the inner cavity 16 will also be affected by the baffles 14 at different positions when flowing, so that the cooling liquid after the turbulence treatment will circulate repeatedly, thereby ensuring the normal heat exchange treatment of the high-temperature liquid in the conveying pipe 23.

[0041] Support seats 7 are provided on both sides of the middle part of the bottom end of the shell 4, and the middle part of the bottom end of the support seat 7 is fixedly connected with a support seat 8, and the bottom of the support seat 8 is provided with a rubber bottom pad.

[0042] When the entire device is in use, the bottom sides of the shell 4 are supported and fixed by the supporting seat 7, and then the entire device after support and fixation is supported as a whole by the supporting seat 8, and a rubber base pad is added to the bottom of the supporting seat 8 to ensure the stability of the entire device during use and avoid displacement of the entire device due to excessive pressure during use.

[0043] A silicone ring gasket is provided on the end of the fluid inlet pipe 2 and the fluid outlet pipe 10 away from the front pipe box 1 , and a rubber ring gasket is provided on the end of the coolant discharge pipe 3 and the coolant inlet pipe 11 away from the shell 4 .

[0044] A silicone ring gasket is added at the connection between the fluid inlet pipe 2 and the fluid outlet pipe 10. On the one hand, it is to improve the sealing of high-temperature materials during use of the entire device to prevent leakage of high-temperature materials. On the other hand, it is also to prevent high-temperature materials from corroding the connection and improve the service life of the entire device.

[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 corrosion-resistant and high-pressure shell and tube heat exchanger, comprising a shell (4), characterized in that: A front pipe box (1) is provided on one side of the shell (4), and a rear pipe box (5) is provided on the other side of the shell (4). An inner cavity (16) is provided in the middle of the inner side of the shell (4). Connecting flanges (1) (6) are provided at both ends of the shell (4). Connecting flanges (2) (9) are provided on the adjacent sides of the front pipe box (1) and the rear pipe box (5). The connecting flanges (1) (6) and (2) (9) on the same side are connected by connecting bolts. A fluid inlet pipe is provided in the middle of the top end of the front pipe box (1). (2), a fluid outlet pipe (10) is arranged in the middle of the bottom end of the front pipe box (1), the interiors of the fluid inlet pipe (2) and the fluid outlet pipe (10) are both connected to the interior of the front pipe box (1), a coolant discharge pipe (3) is arranged on the side of the middle of the top end of the shell (4) close to the fluid inlet pipe (2), and a coolant inlet pipe (11) is arranged on the side of the middle of the bottom end of the shell (4) close to the rear pipe box (5), and the interiors of the coolant discharge pipe (3) and the coolant inlet pipe (11) are both connected to the interior of the inner cavity (16).

2. The corrosion-resistant and high-pressure shell and tube heat exchanger according to claim 1, characterized in that: A partition plate (24) is fixedly connected to one end of the shell (4) close to the front pipe box (1), a partition plate 1 (15) is fixedly connected to the middle of the inner cavity (16), and one end of the partition plate 1 (15) is connected to the middle of the partition plate (24), a partition plate 2 (17) is fixedly connected to the middle of the inner side of the front pipe box (1), and a plurality of conveying pipes (23) are fixedly connected to the middle of the partition plate (24) at equal intervals, and both ends of the conveying pipes (23) penetrate the partition plate (24) and extend outward.

3. The corrosion-resistant and high-pressure shell and tube heat exchanger according to claim 2, characterized in that: An inlet chamber (25) is arranged at the upper part of the second partition plate (17), and an outlet chamber (26) is arranged at the lower part of the second partition plate (17). A plurality of spoilers (12) are fixedly connected to the interior of the inlet chamber (25) at equal intervals and in an interlaced manner, and one side of the spoiler (12) is respectively connected to the inner wall of the front pipe box (1) or a corresponding position on one side of the partition plate (24).

4. The corrosion-resistant and high-pressure shell and tube heat exchanger according to claim 2, characterized in that: A plurality of sliding grooves (27) are equidistantly provided on the upper and lower sides of the inner wall of the conveying pipe (23); the interior of the upper sliding grooves (27) is slidably connected to a top wall baffle (29); the interior of the lower sliding grooves (27) is slidably connected to a bottom wall baffle (28); the thickness of the bottom wall baffle (28) is less than the thickness of the top wall baffle (29).

5. The corrosion-resistant and high-pressure shell and tube heat exchanger according to claim 1, characterized in that: The upper and lower sides of the inner cavity (16) are fixedly connected with a plurality of baffles (14) at equal intervals. The baffles (14) are composed of an inner wall connecting plate (18), a horizontal spoiler (19) and a vertical spoiler (20) from top to bottom. The bottom end of the inner wall connecting plate (18) is rotatably connected with the horizontal spoiler (19). The middle of the bottom end of the horizontal spoiler (19) is rotatably connected with a plurality of connecting rods (21) at equal intervals. The bottom ends of the connecting rods (21) are fixedly connected with the vertical spoiler (20). A limit seat (22) is provided at the middle of the top end of the connecting rod (21).

6. The corrosion-resistant and high-pressure shell and tube heat exchanger according to claim 4, characterized in that: The conveying pipe (23) is fixedly connected with a plurality of outer ring seats (13) at equal intervals, and a moving position (33) is provided in the middle of the outer wall of the outer ring seat (13). Both ends of the outer wall of the outer ring seat (13) are provided with protrusions (32), and a plurality of protruding columns (30) are arranged in a circumferential array near the edge of the adjacent side of the protrusion (32), and the moving position (33) is slidably connected with an outer ring sleeve (31).

7. The corrosion-resistant and high-pressure shell and tube heat exchanger according to claim 1, characterized in that: Support seats (7) are provided on both sides of the middle part of the bottom end of the shell (4), the middle part of the bottom end of the support seat (7) is fixedly connected to a support seat (8), and the bottom of the support seat (8) is provided with a rubber base pad.

8. The corrosion-resistant and high-pressure shell and tube heat exchanger according to claim 1, characterized in that: A silicone ring gasket is provided on the end of the fluid inlet pipe (2) and the fluid outlet pipe (10) away from the front pipe box (1), and a rubber ring gasket is provided on the end of the coolant discharge pipe (3) and the coolant inlet pipe (11) away from the shell (4).

Images