A high-temperature tube heat exchanger

Abstract

The application discloses a high-temperature tubular heat exchanger, which realizes rapid cleaning. A cleaning assembly composed of a rotating mechanism, a socket mechanism and a pump liquid mechanism realizes targeted cleaning of a single heat exchange tube. The rotating mechanism is used in cooperation with the socket mechanism, so that the socket can be accurately aligned with the pipe opening of any heat exchange tube needing cleaning. When the water pump is started, the cleaning liquid is pumped into the heat exchange tube through the hose and the socket. The whole process can be automatically performed in sequence without stopping the machine and disassembling the equipment, so that the cleaning efficiency is high and the influence on production continuity is small. When the fluid flowing through the second outlet pipe and the second inlet pipe is gas, namely, the heating fluid is gas, an outlet liquid pipe is arranged and communicated on the outlet side of the side shell. During work, the cleaning liquid flows through the corresponding heat exchange tube and is discharged to the outlet side or the inlet side of the side shell, and then is discharged through the second inlet pipe or the outlet liquid pipe, so that the cleaning operation can be performed during work, and non-stop cleaning is realized.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, and more particularly to a high-temperature tubular heat exchanger. Background Technology

[0002] Tubular heat exchangers are widely used heat exchange devices in industrial fields. Their core function is to transfer heat between two fluids while ensuring their separation. They typically consist of a cylindrical shell containing a bundle of tubes. During operation, one fluid flows inside the tubes, while the other flows outside the tubes, i.e., inside the shell. Heat is transferred from the hotter fluid to the cooler fluid through the tube walls. This design provides a large heat transfer area, and the turbulence often generated during fluid flow enhances the heat transfer process, resulting in high heat transfer efficiency. Due to their robust structure, resistance to high temperatures and pressures, and strong adaptability, tubular heat exchangers are commonly found in industries such as chemical, petroleum, and pharmaceutical manufacturing, where high heat transfer efficiency is required.

[0003] However, during long-term operation, impurities, minerals, or chemical reaction products in the fluid gradually deposit on the inner and outer walls of the heat exchange tubes, forming a scale layer. This scale layer has poor thermal conductivity, significantly increasing thermal resistance, leading to decreased heat transfer efficiency, increased energy consumption, and potentially even equipment corrosion and insufficient flow. Thorough cleaning of tubular heat exchangers is usually difficult, especially when the inside of the tubes is blocked or severely scaled. For types with removable tube bundles, although the tube bundles can be pulled out of the shell for mechanical cleaning, this process is cumbersome, labor-intensive, and carries the risk of damaging the tube bundles or sealing structures during disassembly and cleaning. This is especially true for heat exchangers with a large number of tubes, long and thin tubes, or complex structures, where cleaning is even more troublesome. Cleaning operations usually result in longer equipment downtime and increased maintenance costs. Summary of the Invention

[0004] One object of the present invention is to provide a high-temperature tubular heat exchanger, comprising a heat exchange assembly and a cleaning assembly, wherein the cleaning assembly is mounted on the heat exchange assembly: The heat exchange assembly is used for heat exchange treatment. The heat exchange assembly includes a shell and a heat exchange tube. Both sides of the shell are equipped with a closed plate with evenly distributed circular holes. Both ends of the heat exchange tube are inserted into the circular holes and fixedly connected to the closed plate. A connecting pipe is fixedly connected to one side of the shell, and a fixed shell is rotatably connected to one side of the connecting pipe. The cleaning assembly includes a rotating mechanism, an insertion mechanism, and a pumping mechanism. The rotating mechanism is used to drive the fixed shell to rotate, the pumping mechanism is used to pump in cleaning fluid, and the insertion mechanism is used to automatically connect the discharge end of the pumping mechanism to one end of the heat exchange tube that needs to be cleaned. The rotating mechanism is installed on the connecting pipe, and the insertion mechanism and the pumping mechanism are installed on the fixed shell. The insertion mechanism includes a second motor, a first pin, a lead screw, a moving block, and an insertion tube. The second motor is mounted on the outer wall of the fixed housing. The output shaft of the second motor is inserted into the fixed housing and fixedly connected to the first pin. The lead screw is slidably connected to the fixed housing. The moving block is threadedly connected to the lead screw. The insertion tube is fixedly connected to the moving block.

[0005] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, one end of the moving block is rotatably connected to a connecting rod, a slide rail is installed on the inner side wall of the fixed shell, and the other end of the connecting rod is slidably connected to the slide rail.

[0006] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, a push-pull rod is slidably connected through one side of the fixed shell, a push plate is fixedly connected to one end of the push-pull rod, an offset block is fixedly connected to the other end of the push-pull rod, a second pin is fixedly connected to the inner side wall of the offset block, a protective shell is also fixedly connected to the inner side wall of the offset block, and a pin hole is opened on the lead screw, the pin hole matching the second pin.

[0007] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, one end of the lead screw is integrally formed with a notched disc, and the lead screw and the notched disc are provided with a common groove, and the first pin is matched with the groove.

[0008] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, the pump mechanism includes a hose and a water pump. The outer wall of the insert is connected to the hose, the discharge end of the water pump is connected to the hose through a rigid pipe, and the inlet end of the water pump is connected to the water tank.

[0009] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, the rotating mechanism includes a first motor, a drive gear, and gear teeth. The first motor is fixedly connected to the connecting pipe, and the output shaft of the first motor passes through the flange of the connecting pipe and is fixedly connected to the drive gear. Gear teeth are integrally formed on the outer wall of the fixed shell, and the drive gear meshes with the gear teeth.

[0010] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, a protective shell is bolted to the outer wall of the fixed shell near the gear teeth, and one side of the protective shell is bolted to the flange of the connecting pipe.

[0011] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, the top end of the tube shell is connected to a first outlet pipe, and the bottom end of the tube shell is connected to a first inlet pipe.

[0012] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, a side shell is fixedly connected to one side of the tube shell via a flange, a second outlet pipe is connected to the top side of the side shell, a second inlet pipe is connected to the bottom side of the side shell, a partition plate is fixedly connected to the inner wall of the side shell, and one side of the partition plate is fixedly connected to the sealing plate.

[0013] As a preferred embodiment of the high-temperature tubular heat exchanger of the present invention, a semi-circular partition is fixedly connected to the inner wall of the tube shell, and the heat exchange tube is inserted into the partition.

[0014] The beneficial effects of this invention are: 1. This invention achieves rapid cleaning by installing a cleaning component on one side of the heat exchanger. Traditional heat exchanger tube cleaning often requires equipment shutdown and disassembly, which is cumbersome and time-consuming. The cleaning component, consisting of a rotating mechanism, an insertion mechanism, and a pumping mechanism, enables targeted cleaning of individual heat exchanger tubes. The rotating mechanism works in conjunction with the insertion mechanism to ensure that the insertion tube can be precisely aligned with the opening of any heat exchanger tube that needs cleaning. The water pump starts and pumps the cleaning solution into the heat exchanger tube through the hose and the insertion tube. The entire process can be carried out automatically and sequentially without stopping or disassembling the equipment. This results in high cleaning efficiency and minimal impact on production continuity. 2. When the fluid flowing through the second outlet pipe and the second inlet pipe is gas, that is, the heating fluid is gas, an outlet pipe is opened and connected to the outlet side of the side shell. During operation, the cleaning fluid flows through the corresponding heat exchange tube and is discharged into the outlet side or inlet side of the side shell, and then discharged through the second inlet pipe or outlet pipe. The cleaning operation can be carried out during operation, realizing cleaning without stopping the machine. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a perspective view of a high-temperature tubular heat exchanger proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of a high-temperature tubular heat exchanger proposed in this invention. Figure 3 This is a schematic diagram of the structure of a high-temperature tubular heat exchanger proposed in this invention; Figure 4 This is a diagram of a high-temperature tubular heat exchanger cleaning assembly proposed in this invention. Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure in area A; Figure 6 This is a partial structural schematic diagram of the lead screw proposed in this invention; Figure 7 This is one of the perspective views of the offset block of a high-temperature tubular heat exchanger proposed in this invention; Figure 8 This is a second perspective view of the offset block of a high-temperature tubular heat exchanger proposed in this invention. Figure 9 This is a schematic diagram of the mating structure of the first pin and the notch plate of the present invention.

[0016] In the diagram: 11. Shell; 12. First outlet pipe; 13. First inlet pipe; 14. Side shell; 15. Second outlet pipe; 16. Second inlet pipe; 17. Partition plate; 18. Heat exchange tube; 19. Partition plate; 21. Connecting pipe; 22. Fixed shell; 23. First motor; 24. Drive gear; 25. Gear teeth; 26. Protective shell; 28. Second motor; 29. ​​First pin; 210. Lead screw; 211. Notched disc; 212. Pin hole; 213. Offset block; 214. Second pin; 215. Protective shell; 216. Push-pull rod; 217. Push plate; 218. Moving block; 219. Inserted pipe; 220. Connecting rod; 221. Slide rail; 223. Hose; 224. Water pump. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example refer to Figure 1-9 The present invention provides a high-temperature tubular heat exchanger, including a heat exchange component and a cleaning component. The cleaning component is installed on the heat exchange component. The heat exchange component is used to perform heat exchange treatment and transfer heat through heat exchange tubes 18. The cleaning component is used to clean the heat exchange tubes 18 in real time. In particular, for heat exchange in the form of gas-liquid or gas-gas, the cleaning component can perform cleaning operation while the heat exchanger is working, without affecting its normal use.

[0020] The heat exchange assembly includes a shell 11 and heat exchange tubes 18. Both sides of the shell 11 are fitted with a sealing plate with evenly distributed circular holes. The two ends of the heat exchange tubes 18 are inserted into the circular holes and fixedly connected to the sealing plate. A connecting pipe 21 is fixedly connected to one side of the shell 11, and a fixed shell 22 is rotatably connected to one side of the connecting pipe 21. The shell 11 constitutes the main outer shell of the heat exchanger, and a medium flow space is formed inside. The heat exchange tubes 18 are the main heat exchange surfaces used for heat exchange between two fluids. The sealing plate is used to seal both ends of the shell 11 and fix the heat exchange tubes 18. The connecting pipe 21 serves as the connection channel between the shell 11 and the fixed shell 22. The fixed shell 22 serves as the mounting base of the cleaning assembly and can rotate relative to the connecting pipe 21.

[0021] The cleaning assembly includes a rotating mechanism, an insertion mechanism, and a pumping mechanism. The rotating mechanism drives the fixed housing 22 to rotate, the pumping mechanism pumps in cleaning fluid, and the insertion mechanism automatically connects the discharge end of the pumping mechanism to one end of the heat exchange tube 18 that needs to be cleaned. The rotating mechanism is mounted on the connecting pipe 21, and the insertion mechanism and the pumping mechanism are mounted on the fixed housing 22. The cleaning assembly is used to automatically clean the heat exchange tube 18 to remove scale. The rotating mechanism drives the fixed housing 22 to rotate, thereby adjusting the angle and position of the insertion mechanism so that it can be aligned with different heat exchange tubes 18. The insertion mechanism is used to perform the insertion action to connect the cleaning fluid pipeline to the target heat exchange tube 18. The pumping mechanism is responsible for providing and transporting the cleaning fluid.

[0022] The insertion mechanism includes a second motor 28, a first pin 29, a lead screw 210, a moving block 218, and an insertion tube 219. The second motor 28 is mounted on the outer wall of the fixed housing 22. The output shaft of the second motor 28 is inserted into the fixed housing 22 and fixedly connected to the first pin 29. The lead screw 210 is slidably connected to the fixed housing 22. The moving block 218 is threadedly connected to the lead screw 210. The insertion tube 219 is fixedly connected to the moving block 218. The insertion mechanism is the core actuator of the cleaning assembly. The second motor 28 provides power, and the first pin 29 serves as the transmission component between the motor output shaft and the lead screw 210. The lead screw 210 converts the rotational motion into linear motion. The moving block 218 moves along the lead screw 210. The insertion tube 219 is used to connect to the port of the heat exchange tube 18. The end of the insertion tube 219 is tapered to facilitate insertion into the heat exchange tube 18. During operation, the second motor 28 drives the lead screw 210 to rotate through the first pin 29, which in turn drives the moving block 218 and the insertion tube 219 fixed thereon to move axially along the lead screw 210, thereby translating the insertion tube 219 and aligning it with the target heat exchange tube 18.

[0023] One end of the movable block 218 is rotatably connected to a connecting rod 220, and a slide rail 221 is installed on the inner wall of the fixed housing 22. The other end of the connecting rod 220 is slidably connected to the slide rail 221. The connecting rod 220 and the slide rail 221 serve as auxiliary guiding and supporting structures for the movable block 218. One end of the connecting rod 220 is hinged to the movable block 218, and the other end slides along the slide rail 221 to ensure that the movable block 218 moves smoothly and prevents it from rotating with the lead screw 210.

[0024] A push-pull rod 216 is slidably connected through one side of the fixed shell 22. A push plate 217 is fixedly connected to one end of the push-pull rod 216, and an offset block 213 is fixedly connected to the other end of the push-pull rod 216. A second pin 214 is fixedly connected to the inner side wall of the offset block 213. A protective shell 215 is also fixedly connected to the inner side wall of the offset block 213. A pin hole 212 is opened on the lead screw 210, and the pin hole 212 matches the second pin 214. The push-pull rod 216, push plate 217, offset block 213, second pin 214, and protective shell 215 constitute the locking mechanism of the lead screw 210. Pushing the push-pull rod 216 can make the offset block 213 and the second pin 214 approach or move away from the lead screw 210. When the second pin 214 is pushed into the pin hole 212 of the lead screw 210 by the push-pull rod 216, the lead screw 210 is locked and cannot rotate. Pushing it again can move the lead screw 210 and the insertion tube 219, and then the insertion tube 219 can be inserted into the corresponding heat exchange tube 18. At this time, the insertion mechanism is in a fixed state. When the second pin 214 is withdrawn from the pin hole 212, the lead screw 210 can rotate freely, and when pulled back, it can drive the lead screw 210 and the insertion tube 219 to retract. The protective shell 215 is used to protect the rotating lead screw 210, and the push plate 217 facilitates external operation of the push-pull rod 216.

[0025] One end of the lead screw 210 has an integrally formed notched disc 211. The lead screw 210 and the notched disc 211 have a common slot, and the first pin 29 matches the slot. The notched disc 211 and the slot thereon constitute the clutch transmission structure between the first pin 29 and the lead screw 210. The first pin 29 can be inserted into the slot. When it is necessary to drive the lead screw 210 to rotate, the lead screw 210 and the insertion tube 219 retract, the first pin 29 is inserted into the slot, and the second motor 28 drives the notched disc 211 and the lead screw 210 to rotate together through the first pin 29.

[0026] The pumping mechanism includes a hose 223 and a water pump 224. The outer wall of the insertion tube 219 is connected to the hose 223. The discharge end of the water pump 224 is connected to the hose 223 via a rigid pipe, and the inlet end of the water pump 224 is connected to the water tank. The pumping mechanism is responsible for providing the cleaning fluid flow. The water pump 224 serves as the power source, pumping the cleaning fluid from the water tank. The hose 223 connects the water pump 224 and the insertion tube 219 and has a certain degree of flexibility to accommodate the movement of the insertion tube 219. The cleaning fluid is finally injected into the heat exchange tube 18 that needs to be cleaned through the insertion tube 219.

[0027] The rotating mechanism includes a first motor 23, a drive gear 24, and gear teeth 25. The first motor 23 is fixedly connected to the connecting pipe 21. The output shaft of the first motor 23 passes through the flange of the connecting pipe 21 and is fixedly connected to the drive gear 24. Gear teeth 25 are integrally formed on the outer wall of the fixed housing 22, and the drive gear 24 meshes with the gear teeth 25. The rotating mechanism is used to adjust the circumferential angle of the fixed housing 22 and the cleaning components mounted on it. The first motor 23 provides power, the drive gear 24 is fixed to the output shaft of the first motor 23, and the gear teeth 25 are an integral structure with the fixed housing 22. The first motor 23 drives the drive gear 24 to rotate, and through meshing with the gear teeth 25, it drives the entire fixed housing 22 to rotate relative to the connecting pipe 21, thereby enabling the insertion tube 219 to be aligned with different heat exchange tubes 18 in the circumferential direction and adjusting the position of the insertion tube 219.

[0028] A protective shell 26 is bolted to the outer wall of the fixed shell 22 near the gear tooth 25. One side of the protective shell 26 is bolted to the flange of the connecting pipe 21. The protective shell 26 is used to cover the meshing part of the drive gear 24 and the gear tooth 25, and serves to prevent dust, foreign objects, and provide safety protection.

[0029] The top end of the shell 11 is connected to the first outlet pipe 12, and the bottom end of the shell 11 is connected to the first inlet pipe 13. The first outlet pipe 12 and the first inlet pipe 13 are the channels for the first type of fluid to enter and exit the shell 11. The fluid passing through the first outlet pipe 12 and the first inlet pipe 13 is a fluid that requires heat.

[0030] A side shell 14 is fixedly connected to one side of the shell 11 via a flange. A second outlet pipe 15 is connected to the top side of the side shell 14, and a second inlet pipe 16 is connected to the bottom side of the side shell 14. A partition plate 17 is fixedly connected to the inner wall of the side shell 14, and one side of the partition plate 17 is fixedly connected to the sealing plate. The side shell 14, the second outlet pipe 15, the second inlet pipe 16, and the partition plate 17 together constitute the flow channel system for the second type of fluid. The side shell 14 is connected to the shell 11 through the heat exchange pipe 18. The second outlet pipe 15 and the second inlet pipe 16 are used for the inlet and outlet of the second type of fluid. The partition plate 17 is used to separate the fluid outlet and inlet. In particular, when the fluid flowing through the second outlet pipe 15 and the second inlet pipe 16 is gas, that is, the heating fluid is gas, an outlet pipe is opened and connected to the outlet side of the side shell 14. During operation, the cleaning fluid flows through the corresponding heat exchange pipe 18 and is discharged into the outlet side or inlet side of the side shell 14, and then discharged through the second inlet pipe 16 or the outlet pipe. Cleaning operations can be performed during operation. In this case, a bend needs to be installed on the bottom side of the second inlet pipe 16, and a drain port needs to be opened under the bend to prevent the cleaning fluid from entering the heat source.

[0031] A semi-circular baffle 19 is fixedly connected to the inner wall of the shell 11, and the heat exchange tube 18 is inserted into the baffle 19. The baffle 19 is installed inside the shell 11 and is mainly used to support the heat exchange tube 18 and prevent it from vibrating due to its excessive length. It can also guide the flow of the shell-side fluid, increase turbulence, and improve heat exchange efficiency.

[0032] Working principle: In heat exchange mode, two fluids flow through the inside of heat exchange tube 18 and the inside of tube shell 11, and the outside of heat exchange tube 18 respectively for heat exchange. When cleaning is required, the first motor 23 of the rotating mechanism works, driving the fixed shell 22 to rotate, adjusting the circumferential position of the insertion tube 219, and pulling back the push-pull rod 216, which can drive the lead screw 210 and the insertion tube 219 to retract. The notch plate 211 and the slot on it constitute the clutch transmission structure between the first pin 29 and the lead screw 210. The first pin 29 is inserted into the slot, and the second motor 28 drives the notch plate 211 and the lead screw 210 to rotate together through the first pin 29, adjusting the translation of the insertion tube 219. After the insertion tube 219 is aligned with the corresponding heat exchange tube 18, pushing the push-pull rod 216 can move the offset block 213 and the first When the second pin 214 approaches or moves away from the lead screw 210, and is inserted into the pin hole 212 of the lead screw 210 under the push of the push-pull rod 216, the lead screw 210 is locked and cannot rotate. Pushing it further can move the lead screw 210 and the insertion tube 219, and then insert the insertion tube 219 into the corresponding heat exchange tube 18 until the front end of the insertion tube 219 is tightly inserted into the opening of the heat exchange tube 18 to achieve a sealed connection. The water pump 224 of the pumping mechanism starts and pumps the cleaning fluid into the target heat exchange tube 18 through the hose 223 and the insertion tube 219 for rinsing. After cleaning one heat exchange tube 18, the insertion tube 219 retracts, and the rotating mechanism adjusts the angle to align with the next heat exchange tube 18 that needs to be cleaned. The above process is repeated until the cleaning work of all designated heat exchange tubes 18 is completed. When the fluid flowing through the second outlet pipe 15 and the second inlet pipe 16 is gas, i.e. the heating fluid is gas, an outlet pipe is opened and connected to the outlet side of the side shell 14. During operation, the cleaning fluid flows through the corresponding heat exchange pipe 18 and is discharged into the outlet side or inlet side of the side shell 14, and then discharged through the second inlet pipe 16 or the outlet pipe. Cleaning operations can be performed during operation. In this case, a bend needs to be installed on the bottom side of the second inlet pipe 16, and a drain port needs to be opened under the bend to prevent the cleaning fluid from entering the heat source.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-temperature tubular heat exchanger, comprising a heat exchange assembly and a cleaning assembly, wherein the cleaning assembly is mounted on the heat exchange assembly, characterized in that: The heat exchange assembly is used for heat exchange treatment. The heat exchange assembly includes a shell (11) and a heat exchange tube (18). Both sides of the shell (11) are equipped with a closed plate with evenly distributed circular holes. The two ends of the heat exchange tube (18) are respectively inserted into the circular holes and fixedly connected to the closed plate. A connecting pipe (21) is fixedly connected to one side of the shell (11), and a fixed shell (22) is rotatably connected to one side of the connecting pipe (21). The cleaning assembly includes a rotating mechanism, an insertion mechanism, and a pumping mechanism. The rotating mechanism is used to drive the fixed shell (22) to rotate. The pumping mechanism is used to pump in cleaning fluid. The insertion mechanism is used to automatically connect the discharge end of the pumping mechanism to one end of the heat exchange tube (18) that needs to be cleaned. The rotating mechanism is installed on the connecting pipe (21). The insertion mechanism and the pumping mechanism are installed on the fixed shell (22). The insertion mechanism includes a second motor (28), a first pin (29), a lead screw (210), a moving block (218), and an insertion tube (219). The second motor (28) is installed on the outer wall of the fixed housing (22). The output shaft of the second motor (28) is inserted into the fixed housing (22) and fixedly connected to the first pin (29). The lead screw (210) is slidably connected to the fixed housing (22). The moving block (218) is threadedly connected to the lead screw (210). The insertion tube (219) is fixedly connected to the moving block (218).

2. A high-temperature tubular heat exchanger according to claim 1, characterized in that, One end of the movable block (218) is rotatably connected to a connecting rod (220), and a slide rail (221) is installed on the inner side wall of the fixed shell (22). The other end of the connecting rod (220) is slidably connected to the slide rail (221).

3. A high-temperature tubular heat exchanger according to claim 1, characterized in that, A push-pull rod (216) is slidably connected through one side of the fixed shell (22). A push plate (217) is fixedly connected to one end of the push-pull rod (216), and an offset block (213) is fixedly connected to the other end of the push-pull rod (216). A second pin (214) is fixedly connected to the inner wall of the offset block (213). A protective shell (215) is also fixedly connected to the inner wall of the offset block (213). A pin hole (212) is opened on the lead screw (210), and the pin hole (212) matches the second pin (214).

4. A high-temperature tubular heat exchanger according to claim 1, characterized in that, One end of the lead screw (210) is integrally formed with a notched disc (211), and the lead screw (210) and the notched disc (211) are provided with a common slot, and the first pin (29) matches the slot.

5. A high-temperature tubular heat exchanger according to claim 1, characterized in that, The pump mechanism includes a hose (223) and a water pump (224). The outer wall of the insertion tube (219) is connected to the hose (223). The discharge end of the water pump (224) is connected to the hose (223) through a hard pipe. The inlet end of the water pump (224) is connected to the water tank.

6. A high-temperature tubular heat exchanger according to claim 1, characterized in that, The rotating mechanism includes a first motor (23), a drive gear (24), and gear teeth (25). The first motor (23) is fixedly connected to the connecting pipe (21). The output shaft of the first motor (23) passes through the flange of the connecting pipe (21) and is fixedly connected to the drive gear (24). Gear teeth (25) are integrally formed on the outer side wall of the fixed shell (22). The drive gear (24) meshes with the gear teeth (25).

7. A high-temperature tubular heat exchanger according to claim 6, characterized in that, A protective shell (26) is bolted to the outer wall of the fixed shell (22) near the gear tooth (25), and one side of the protective shell (26) is bolted to the flange of the connecting pipe (21).

8. A high-temperature tubular heat exchanger according to claim 1, characterized in that, The top end of the shell (11) is connected to a first outlet pipe (12), and the bottom end of the shell (11) is connected to a first inlet pipe (13).

9. A high-temperature tubular heat exchanger according to claim 1, characterized in that, A side shell (14) is fixedly connected to one side of the shell (11) via a flange. A second outlet pipe (15) is connected to the top side of the side shell (14). A second inlet pipe (16) is connected to the bottom side of the side shell (14). A partition plate (17) is fixedly connected to the inner wall of the side shell (14). One side of the partition plate (17) is fixedly connected to the sealing plate.

10. A high-temperature tubular heat exchanger according to claim 9, characterized in that, A semi-circular partition (19) is fixedly connected to the inner wall of the shell (11), and the heat exchange tube (18) is inserted into the partition (19).

Images