A tubular heat exchanger with adjustable heat exchange area

Abstract

The application discloses a tube-shell heat exchanger with adjustable heat exchange area and relates to the technical field of heat exchangers. The tube-shell heat exchanger with adjustable heat exchange area comprises a heat exchange mechanism. The cold medium enters the front pipe box from the cold inflow pipe, enters the rear pipe box from the upper half of the composite mechanism, enters the lower half of the composite mechanism from the rear pipe box, and finally flows out from the cold outflow pipe. The hot medium enters from the hot inflow pipe and flows to the hot outflow pipe through the adjusting mechanism. The heat exchange effect is achieved. The middle part of the heat exchange mechanism is horizontally stretched and contracted through the adjusting mechanism, so that the heat exchange area is adjusted, different working requirements are met, the adjusting is facilitated, the equipment applicability is improved, and the stability of the equipment during operation is maintained through the support of the frame when the adjusting mechanism is stretched and contracted, so that the normal operation of the equipment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchangers, in particular to a tube-shell heat exchanger with adjustable heat exchange area. BACKGROUND

[0002] The tube-shell heat exchanger is the most widely used heat exchanger in the industry, which is mainly composed of a shell, a tube sheet, a heat exchange tube, a head, a baffle plate and the like. Stainless steel, ordinary carbon steel, red copper or other non-ferrous metals can be used as the material. During operation, one fluid enters through a pipe connected to one end of the head, passes through the heat exchange tube, and flows out from the pipe connected to the other end of the head, which is called the tube pass. Another fluid enters through a pipe connected to the shell and flows out from another pipe connected to the shell, which is called the shell pass. The heat exchange tube is the key component for heat transfer between cold and hot fluids, and its structure and type are constantly optimized.

[0003] However, the heat exchange area of the current tube-shell heat exchanger is fixed, and if different heat exchange areas are required, multiple tube-shell heat exchangers with different heat exchange areas need to be purchased, which undoubtedly greatly increases the use cost. Therefore, a new design is made for this situation. SUMMARY

[0004] To achieve the above purpose, the present application is realized by the following technical scheme: a tube-shell heat exchanger with adjustable heat exchange area, comprising a heat exchange mechanism, the outer side of the heat exchange mechanism is fixedly connected with a frame body, the middle of the inside of the heat exchange mechanism is fixedly connected with a composite mechanism, one side of the inside of the heat exchange mechanism is fixedly connected with a processing mechanism.

[0005] The heat exchange mechanism includes a front tube box, one side of the outer side of the front tube box is fixedly connected with an adjusting mechanism, one side of the inner wall of the adjusting mechanism is fixedly connected with a closing plate, one side of the outer side of the closing plate is fixedly connected with the outer side of the composite mechanism, both sides of the inner wall of the adjusting mechanism are fixedly connected with baffle plates, the middle part of the heat exchange mechanism is transversely expanded and contracted by the adjusting mechanism, so as to adjust the heat exchange area, so as to meet different working requirements, facilitate adjustment, improve the applicability of the equipment, and improve the heat transfer efficiency by contacting the baffle plates when the medium passes through the adjusting mechanism, increase the disturbance of the medium fluid, prolong the fluid path, the outer side of the adjusting mechanism away from the front tube box is fixedly connected with a rear tube box, the inner side of the rear tube box is fixedly connected with the outer side of the processing mechanism, one side of the outer side of the front tube box is fixedly connected with a cold inflow pipe, cold medium enters the inside of the front tube box from the cold inflow pipe, enters the inside of the rear tube box from the upper half composite mechanism, enters the inside of the lower half composite mechanism from the rear tube box, and finally flows out from the cold outflow pipe, hot medium enters from the hot inflow pipe, flows to the hot outflow pipe through the adjusting mechanism, so as to achieve the effect of heat exchange, one side of the outer side of the front tube box away from the cold inflow pipe is fixedly connected with a cold outflow pipe, one side of the outer side of the adjusting mechanism close to the cold inflow pipe is fixedly connected with a hot inflow pipe, and one side of the outer side of the adjusting mechanism close to the rear tube box is fixedly connected with a hot outflow pipe, which supports the composite mechanism and has a certain protection effect, reduces the vibration of the parts, supports the heat exchange mechanism through the frame, and the inner support of the frame slides on the track when the adjusting mechanism expands and contracts, so as to maintain the stability of the equipment during operation, thereby ensuring the normal operation of the equipment.

[0006] Preferably, the adjusting mechanism includes an adjusting shell, one side of the outer side of the adjusting shell is fixedly connected with an electric push rod, the cylindrical shell slides in the inner side of the adjusting shell by the electric push rod, so as to adjust the heat exchange area, one side of the outer side of the electric push rod away from the adjusting shell is fixedly connected with an external terminal, one side of the outer side of the external terminal is fixedly connected with a cylindrical shell, when the cylindrical shell slides in the inner side of the adjusting shell, the composite mechanism expands and contracts with the operation of the equipment, so as to meet the adjustment requirements of the equipment and maintain the normal operation of the equipment, by adjusting the heat exchange area, the running cost is reduced, if the heating area is unreasonable, it may cause local overheating or overcooling, cause thermal stress and deformation of the equipment, and accelerate the wear of the equipment. By adjusting the heating area, the temperature distribution of the equipment is uniform, the maintenance and replacement frequency of the equipment is reduced, the equipment maintenance cost is reduced, and the service life of the equipment is prolonged.

[0007] Preferably, the cylindrical shell is fixedly connected with an external plate outside the side close to the adjusting shell, the external plate slides with the cylindrical shell, thereby improving the sealing between components, avoiding leakage in subsequent operation, maintaining the integrity of the equipment, the middle of the inner wall of the adjusting shell is fixedly connected with a docking mechanism, when the cylindrical shell moves to the middle of the adjusting shell, the docking mechanism plays a role in shock absorption and buffering, thereby reducing wear and tear between components, preventing excessive wear and tear of components, thereby prolonging the service life of components, a groove is formed in the side of the external plate close to the docking mechanism, when the external plate is attached to the docking mechanism, the groove on the surface of the external plate is inserted into the docking mechanism, thereby improving the sealing between components, reducing the flow of medium in the gap, thereby reducing fluid impurities, and maintaining the smoothness of the equipment interior.

[0008] Preferably, the docking mechanism includes an annular frame, the outer side of the annular frame is fixedly connected with the inner wall of the adjusting shell, the inner side of the annular frame is fixedly connected with a cylindrical shell, the inner side of the cylindrical shell is fixedly connected with a spring strip, the reaction force of the spring strip avoids excessive sliding of the cylindrical shell, thereby playing a certain limiting role, the outer side of the spring strip away from the cylindrical shell is fixedly connected with a sliding block, when the cylindrical shell contacts the annular baffle, the annular baffle drives the sliding block to extrude the spring strip, thereby achieving the role of shock absorption and buffering, reducing the vibration amplitude during docking, improving the stability of the equipment, thereby maintaining continuous operation of the equipment, the outer side of the sliding block away from the cylindrical shell is fixedly connected with an annular baffle, when the annular baffle contacts the external plate, the insertion block is inserted into the groove of the external plate, thereby improving the sealing between components, reducing the gap between components, and preventing leakage.

[0009] Preferably, the composite mechanism includes a barrel, a closure plate is arranged on both sides of the barrel and the sliding tube, when the adjusting mechanism expands laterally, the barrel and the sliding tube are driven to slide and contract, thereby satisfying the adjustment of components, the inner wall of the barrel is slidably connected with a sliding tube, when the sliding tube slides to the inner side of the barrel, the impurities inside the barrel are stripped by friction, thereby avoiding blockage, the inner wall of the sliding tube is fixedly connected with a spiral plate on the side close to the front pipe box, the spiral plate is arranged inside the sliding tube, the flow of fluid is adjusted by the spiral structure, thereby rotating the fluid in a spiral manner, thereby increasing the turbulent effect, improving the heat exchange efficiency, reducing the size and energy consumption of the equipment, and improving the conveying efficiency and reducing the flow resistance.

[0010] Preferably, the rotating mechanism comprises a fixed frame, the outer side of the fixed frame is fixedly connected with the inner wall of the sliding pipe, the opposite sides of the fixed frame are fixedly connected with a connecting rod, the outer side of the connecting rod is fixedly connected with a first bearing, the outer side of the first bearing is fixedly connected with a square knob, the fluid impacts the square knob through the spiral plate to drive the square knob to rotate, thereby achieving the effect of rubbing the inner wall of the pipe, so as to scrape the inner wall of the pipe, and the rotational motion of the fluid can produce a scouring effect on the inner wall of the pipe, so that impurities and particles in the fluid are not easily deposited on the pipe wall, the rotating fluid continuously impacts the pipe wall, preventing the accumulation of impurities and keeping the inner wall of the pipe clean, thereby prolonging the service life of the pipe.

[0011] Preferably, the processing mechanism comprises a processing base, one side of the outer side of the processing base is fixedly connected with the inner wall of the rear pipe box, the side of the outer side of the processing base away from the rear pipe box is fixedly connected with a second bearing, the inner side of the second bearing is fixedly connected with a connecting column, the side of the outer side of the connecting column away from the processing base is fixedly connected with a processing end block, the outer side of the processing end block is insertedly connected with a square paddle frame, the square paddle frame is inserted with the processing end block, so as to facilitate subsequent replacement and reduce maintenance difficulty, the inner side of the square paddle frame is fixedly connected with a paddle plate, and the middle of the outer side of the connecting column is fixedly connected with a friction mechanism. The fluid enters the inside of the rear pipe box, and the square paddle frame and the paddle plate are impacted by the fluid, so as to increase the stress area of the fluid, thereby driving the connecting column to rotate and driving the friction mechanism to rotate, and the inner wall of the rear pipe box is rubbed, so as to achieve the effect of cleaning the inner wall of the equipment, preventing the fluid from being washed on the inner wall of the equipment for a long time, causing impurities to accumulate on the inner wall of the equipment, avoiding affecting the subsequent fluid flow effect, and the inner side of the friction mechanism is fixedly connected with a cleaning mechanism.

[0012] Preferably, the friction mechanism comprises a connecting column, the inner side of the connecting column is fixedly connected with the outer side of the connecting column, the outer side of the connecting column is fixedly connected with a trapezoidal support, the opposite sides of the trapezoidal support are rotatably connected with a friction column, the connecting column is rotated to drive the connecting column to rotate, so that the friction column rubs the inside of the equipment, thereby achieving the effect of cleaning the impurities on the inner wall of the equipment, reducing the impurities on the inner wall of the equipment through friction, reducing the accumulation of impurities, avoiding caking after long-term accumulation, preventing the increase of subsequent cleaning difficulty, avoiding blockage, and affecting the subsequent fluid flow efficiency, the outer side of the friction column is fixedly connected with a connecting scraping block, the contact area is increased through the connecting scraping block, thereby improving the friction performance, further improving the cleaning effect, improving the cleaning efficiency, and the inner side of the trapezoidal support is fixedly connected with the outer side of the cleaning mechanism.

[0013] Preferably, the cleaning mechanism comprises a cleaning support, the outer side of the cleaning support is fixedly connected with a receiving frame, the outer side of the receiving frame is fixedly connected with a cylindrical block, the cylindrical block is frictionally matched with the friction column, so as to clean the surface of the component, avoid excessive accumulation of impurities, prevent the subsequent friction effect, the outer side of the cylindrical block is provided with a cylindrical groove, the cylindrical groove is provided, the groove is provided to enhance the chip removal effect, reduce the adsorption of debris, so as to keep the surface of the component clean, prevent the corrosion of the component caused by the accumulation of impurities, thereby prolonging the service life of the component.

[0014] The application provides a tubular heat exchanger with adjustable heat exchange area.

[0015] I. The tubular heat exchanger with adjustable heat exchange area is designed through a composite mechanism, cold medium enters the front pipe box from the cold inflow pipe, enters the rear pipe box from the upper half composite mechanism, enters the lower half composite mechanism from the rear pipe box, and finally flows out from the cold outflow pipe, hot medium enters from the hot inflow pipe, flows to the hot outflow pipe through the adjusting mechanism, so as to achieve the heat exchange effect, the adjusting mechanism is used for transverse expansion and contraction of the middle part of the heat exchange mechanism, so as to adjust the heat exchange area, meet different working requirements, facilitate adjustment, improve the applicability of the equipment, the medium contacts with the baffle when passing through the adjusting mechanism, so as to improve the heat transfer efficiency, increase the disturbance of the medium fluid, prolong the fluid path, support the composite mechanism, and have a certain protection effect, reduce the vibration of the component, the frame supports the heat exchange mechanism, when the adjusting mechanism expands and contracts, the inner support of the frame slides on the track, so as to keep the stability of the equipment during operation, and ensure the normal operation of the equipment.

[0016] II. The heat exchange area adjustable tube shell heat exchanger, through the adjustment mechanism design, the cylindrical shell slides in the adjustment shell, and the composite mechanism expands and contracts with the operation of the equipment, so as to meet the demand of adjustment operation, keep the normal operation of the equipment, reduce the operation cost by adjusting the heat exchange area, if the heating area is unreasonable, it may cause local overheating or overcooling, cause thermal stress and deformation of the equipment, and accelerate the wear of the equipment. By adjusting the heating area, the temperature distribution of the equipment is uniform, the maintenance and replacement frequency of the equipment is reduced, the equipment maintenance cost is reduced, the service life of the equipment is prolonged, the sealing between parts is improved by sliding the external plate with the cylindrical shell, so as to avoid leakage in subsequent operation and keep the integrity of the equipment. When the cylindrical shell moves to the middle of the adjustment shell, the abutting mechanism plays a role in shock absorption and buffering, so as to reduce the wear between parts and prevent excessive wear of parts, thereby prolonging the service life of parts. At the same time, when the external plate is attached to the abutting mechanism, the groove on the surface of the external plate is inserted into the abutting mechanism, so as to improve the sealing between parts and reduce the flow of medium in the gap, thereby reducing impurities in the fluid and keeping the equipment internal unobstructed.

[0017] III. The heat exchange area adjustable tube shell heat exchanger, through the abutting mechanism design, when the cylindrical shell contacts with the annular baffle, the annular baffle drives the sliding block to extrude the spring strip, so as to achieve the role of shock absorption and buffering, reduce the vibration amplitude during abutting, improve the stability of the equipment, so as to keep the equipment continuous operation. At the same time, through the reaction force of the spring strip, the excessive sliding of the cylindrical shell is avoided, and a certain limiting effect is achieved. When the annular baffle contacts with the external plate, the insertion block is inserted into the groove of the external plate, so as to improve the sealing between parts and reduce the gap between parts to prevent leakage.

[0018] IV. The heat exchange area adjustable tube shell heat exchanger, through the composite mechanism design, the closure plate is arranged on both sides of the cylinder tube and the sliding tube, when the adjustment mechanism expands and contracts horizontally, the cylinder tube and the sliding tube slide and contract, so as to meet the adjustment of parts. When the sliding tube slides to the inside of the cylinder tube, the impurities inside the cylinder tube are stripped by friction, so as to avoid blockage. The spiral plate is arranged in the inside of the sliding tube, and the flow mode of the fluid is adjusted by the spiral structure, so as to rotate the fluid in the form of spiral, thereby increasing the turbulent effect, improving the heat exchange efficiency, reducing the size and energy consumption of the equipment, improving the conveying efficiency, reducing the flow resistance, and rotating the rotating mechanism by turbulent flow, so as to achieve the effect of cleaning the impurities on the inner wall and preventing dirt deposition.

[0019] Five, the heat exchange area adjustable tube heat exchanger, through the processing mechanism design, fluid enters to the rear pipe box inside, through the fluid drive square frame and paddle impact, so as to increase the fluid stress area, so as to drive the connecting column through the part rotation, drive the friction mechanism rotation, the rear pipe box inner wall friction, so as to achieve the effect of cleaning the inner wall of the equipment, prevent the fluid from washing in the equipment inner wall for a long time, cause the impurities to accumulate in the equipment inner wall, avoid affecting the subsequent fluid flow effect, square frame and processing end block are inserted, so as to facilitate subsequent replacement, reduce the maintenance difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is external structure schematic diagram of the heat exchange area adjustable tube heat exchanger of the application;

[0021] Figure 2 It is tube heat exchanger structure schematic diagram of the application;

[0022] Figure 3 It is heat exchange mechanism section structure schematic diagram of the application;

[0023] Figure 4 It is adjusting mechanism section structure schematic diagram of the application;

[0024] Figure 5 It is docking mechanism structure schematic diagram of the application;

[0025] Figure 6 It is composite mechanism section structure schematic diagram of the application;

[0026] Figure 7 It is rotating mechanism structure schematic diagram of the application;

[0027] Figure 8 It is processing mechanism structure schematic diagram of the application;

[0028] Figure 9 It is friction mechanism structure schematic diagram of the application.

[0029] In the diagram: 1. Heat exchange mechanism; 2. Composite mechanism; 3. Processing mechanism; 4. Frame; 11. Front tube box; 12. Enclosure plate; 13. Baffle plate; 14. Adjustment mechanism; 15. Rear tube box; 16. Cold inlet pipe; 17. Cold outlet pipe; 18. Hot inlet pipe; 19. Hot outlet pipe; 141. Adjustment shell; 142. Electric push rod; 143. External connection end; 144. Cylindrical shell; 145. External plate; 146. Docking mechanism; 1461. Annular frame; 1462. Cylindrical shell; 1463. Spring bar; 1464. Sliding block; 1465. Annular baffle; 14 66. Insertion block; 21. Tube; 22. Sliding tube; 23. Spiral plate; 24. Rotating mechanism; 241. Fixing frame; 242. Connecting rod; 243. First bearing; 244. Square lever; 31. Processing base; 32. Second bearing; 33. Connecting column; 34. Processing end block; 35. Square paddle frame; 36. Paddle plate; 37. Friction mechanism; 38. Cleaning mechanism; 371. Connecting column; 372. Trapezoidal support; 373. Friction column; 374. Connecting scraper; 381. Cleaning support; 382. Receiving frame; 383. Columnar block; 384. Columnar groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution: a shell-and-tube heat exchanger with adjustable heat exchange area, including a heat exchange mechanism 1, a frame 4 fixedly connected to the outside of the heat exchange mechanism 1, a composite mechanism 2 fixedly connected to the middle of the inside of the heat exchange mechanism 1, and a processing mechanism 3 fixedly connected to one side of the inside of the heat exchange mechanism 1.

[0032] The heat exchange mechanism 1 comprises a front pipe box 11, one side of the outer part of the front pipe box 11 is fixedly connected with an adjusting mechanism 14, one side of the inner wall of the adjusting mechanism 14 is fixedly connected with a closing plate 12, one side of the outer part of the closing plate 12 is fixedly connected with the outer side of the composite mechanism 2, both sides of the inner wall of the adjusting mechanism 14 are fixedly connected with baffles 13, one side of the outer part of the adjusting mechanism 14 away from the front pipe box 11 is fixedly connected with a rear pipe box 15, the inner side of the rear pipe box 15 is fixedly connected with the outer side of the processing mechanism 3, one side of the outer part of the front pipe box 11 is fixedly connected with a cold flow inlet pipe 16, one side of the outer part of the front pipe box 11 away from the cold flow inlet pipe 16 is fixedly connected with a cold flow outlet pipe 17, one side of the outer part of the adjusting mechanism 14 close to the cold flow inlet pipe 16 is fixedly connected with a hot flow inlet pipe 18, and one side of the outer part of the adjusting mechanism 14 close to the rear pipe box 15 is fixedly connected with a hot flow outlet pipe 19. The cold medium enters the inside of the front pipe box 11 from the cold flow inlet pipe 16, enters the inside of the rear pipe box 15 from the upper half composite mechanism 2, enters the inside of the lower half composite mechanism 2 from the rear pipe box 15, and finally flows out from the cold flow outlet pipe 17. The hot medium enters from the hot flow inlet pipe 18, flows to the hot flow outlet pipe 19 through the adjusting mechanism 14, so as to achieve the heat exchange effect. The adjusting mechanism 14 is used for horizontal expansion and contraction operation in the middle of the heat exchange mechanism 1, so as to achieve the effect of adjusting the heat exchange area, meet different working requirements, facilitate adjustment, improve the equipment applicability, and improve the heat transfer efficiency by the contact between the medium and the baffle 13 when the medium passes through the adjusting mechanism 14, increase the medium fluid disturbance, prolong the fluid path, support the composite mechanism 2, and have a certain protection effect, reduce the part vibration, support the heat exchange mechanism 1 by the frame body 4, and the inner support of the frame body 4 slides on the track when the adjusting mechanism 14 expands and contracts, so as to maintain the stability of the equipment operation, and ensure the normal operation of the equipment.

[0033] The adjusting mechanism 14 comprises an adjusting shell 141, one side of the outer part of the adjusting shell 141 is fixedly connected with an electric push rod 142, one side of the outer part of the electric push rod 142 away from the adjusting shell 141 is fixedly connected with an external terminal 143, and one side of the outer part of the external terminal 143 is fixedly connected with a cylindrical shell 144. The cylindrical shell 144 slides in the inside of the adjusting shell 141 by the electric push rod 142, so as to achieve the effect of adjusting the heat exchange area. When the cylindrical shell 144 slides in the inside of the adjusting shell 141, the composite mechanism 2 expands and contracts with the equipment operation, so as to meet the adjustment requirement, maintain the normal operation of the equipment, reduce the operation cost by adjusting the heat exchange area, and if the heating area is unreasonable, local overheating or overcooling may occur, the equipment may generate thermal stress and deformation, and the equipment wear is accelerated. The temperature distribution of the equipment is uniform by adjusting the heating area, the equipment maintenance and replacement frequency is reduced, the equipment maintenance cost is reduced, and the service life of the equipment is prolonged.

[0034] The outer side of the cylindrical shell 144 is fixedly connected with an outer connecting plate 145 near one side of the adjusting shell 141, the middle of the inner wall of the adjusting shell 141 is fixedly connected with a docking mechanism 146, and a groove is formed in the outer side of the outer connecting plate 145 near the docking mechanism 146. The outer connecting plate 145 slides with the cylindrical shell 144, thereby improving the sealing between the components, avoiding leakage in subsequent operations, and maintaining the integrity of the equipment. When the cylindrical shell 144 moves to the middle of the adjusting shell 141, the docking mechanism 146 plays a role in shock absorption and buffering, thereby reducing the wear between the components, preventing excessive wear of the components, thereby prolonging the service life of the components. When the outer connecting plate 145 is attached to the docking mechanism 146, the surface groove of the outer connecting plate 145 is inserted into the docking mechanism 146, thereby improving the sealing between the components, reducing the flow of medium in the gap, thereby reducing impurities in the fluid, and maintaining smooth flow inside the equipment.

[0035] The docking mechanism 146 includes an annular frame 1461, the outer side of the annular frame 1461 is fixedly connected with the inner wall of the adjusting shell 141, the inner side of the annular frame 1461 is fixedly connected with a cylindrical shell 1462, the inner side of the cylindrical shell 1462 is fixedly connected with a spring strip 1463, the outer side of the spring strip 1463 away from the cylindrical shell 1462 is fixedly connected with a sliding block 1464, the outer side of the sliding block 1464 away from the cylindrical shell 1462 is fixedly connected with an annular baffle 1465, and the outer side of the annular baffle 1465 away from the sliding block 1464 is fixedly connected with an insertion block 1466. When the cylindrical shell 144 contacts the annular baffle 1465, the annular baffle 1465 drives the sliding block 1464 to press the spring strip 1463, thereby achieving the effect of shock absorption and buffering, reducing the vibration amplitude during docking, improving the stability of the equipment, thereby maintaining continuous operation of the equipment. The spring strip 1463 has a counterforce, thereby avoiding excessive sliding of the cylindrical shell 144 and playing a certain limiting role. When the annular baffle 1465 contacts the outer connecting plate 145, the insertion block 1466 is inserted into the groove of the outer connecting plate 145, thereby improving the sealing between the components and reducing the gap between the components to prevent leakage.

[0036] The second embodiment is based on the first embodiment, please refer to Figures 6 to 7As shown, the composite mechanism 2 comprises a cylinder tube 21, the inner wall of the cylinder tube 21 is slidingly connected with a sliding tube 22, the inner wall of the sliding tube 22 is fixedly connected with a spiral plate 23 near one side of the front tube box 11, and the inner wall of the sliding tube 22 is fixedly connected with a rotating mechanism 24. The closing plate 12 is arranged on both sides of the cylinder tube 21 and the sliding tube 22. When the adjusting mechanism 14 is horizontally expanded and contracted, the cylinder tube 21 and the sliding tube 22 are driven to slide and contract, so as to satisfy the part adjusting effect. When the sliding tube 22 slides to the inside of the cylinder tube 21, the impurities inside the cylinder tube 21 are stripped by friction, so as to avoid blockage. The spiral plate 23 is arranged inside the sliding tube 22. The flow of the fluid is adjusted by the spiral structure. The fluid is rotated by the spiral structure, so as to increase the turbulent effect, improve the heat exchange efficiency, reduce the equipment size and energy consumption, improve the conveying efficiency, reduce the flow resistance, drive the rotating mechanism 24 to rotate by the turbulent flow, so as to achieve the effect of cleaning the impurities on the inner wall and preventing dirt deposition.

[0037] The rotating mechanism 24 comprises a fixed frame 241, the outer side of the fixed frame 241 is fixedly connected with the inner wall of the sliding tube 22, the opposite surfaces of the fixed frame 241 are fixedly connected with a connecting rod 242, the outer side of the connecting rod 242 is fixedly connected with a first bearing 243, and the outer side of the first bearing 243 is fixedly connected with a square-shaped push piece 244. The fluid is impacted on the square-shaped push piece 244 by the spiral plate 23, so as to drive the square-shaped push piece 244 to rotate, so as to scrape the inner wall of the pipeline, the rotating motion of the fluid can produce a scouring effect on the inner wall of the pipeline, so that the impurities and particles in the fluid are not easy to deposit on the pipe wall. The rotating fluid continuously impacts the pipe wall, prevents the accumulation of impurities, maintains the cleanliness of the inner wall of the pipeline, and prolongs the service life of the pipeline.

[0038] In the third embodiment, on the basis of the first and second embodiments, please refer to Figures 8 to 9As shown, the processing mechanism 3 comprises a processing base 31, one side of the processing base 31 is fixedly connected with the inner wall of the rear pipe box 15, the side of the processing base 31 away from the rear pipe box 15 is fixedly connected with a second bearing 32, the inner side of the second bearing 32 is fixedly connected with a connecting column 33, the side of the connecting column 33 away from the processing base 31 is fixedly connected with a processing end block 34, the outer side of the processing end block 34 is insertedly connected with a square paddle frame 35, the inner side of the square paddle frame 35 is fixedly connected with a paddle plate 36, the middle of the outer side of the connecting column 33 is fixedly connected with a friction mechanism 37, and the inner side of the friction mechanism 37 is fixedly connected with a cleaning mechanism 38. Fluid enters the inside of the rear pipe box 15, and the square paddle frame 35 and the paddle plate 36 are impacted by the fluid to increase the fluid force area, so that the connecting column 33 is driven to rotate by the parts, and the friction mechanism 37 is driven to rotate, and the inner wall of the rear pipe box 15 is rubbed, so as to achieve the effect of cleaning the inner wall of the equipment, preventing the fluid from washing the inner wall of the equipment for a long time, causing impurities to accumulate on the inner wall of the equipment, avoiding affecting the subsequent fluid flow effect, and the square paddle frame 35 is inserted with the processing end block 34, so that the subsequent replacement is facilitated, and the maintenance difficulty is reduced.

[0039] The friction mechanism 37 comprises a connecting column 371, the inner side of the connecting column 371 is fixedly connected with the outer side of the connecting column 33, the outer side of the connecting column 371 is fixedly connected with a trapezoidal support 372, the opposite surfaces of the trapezoidal support 372 are rotatably connected with a friction column 373, the outer side of the friction column 373 is fixedly connected with a connecting scraping block 374, and the inner side of the trapezoidal support 372 is fixedly connected with the outer side of the cleaning mechanism 38. The connecting column 33 is rotated to drive the connecting column 371 to rotate, so that the friction column 373 rubs the inside of the equipment, so as to achieve the effect of cleaning the impurities on the inner wall of the equipment, reducing the impurities on the inner wall of the equipment by friction, reducing the accumulation of impurities, avoiding caking after long-term accumulation, preventing the subsequent cleaning difficulty from being improved, avoiding blockage, affecting the subsequent fluid flow efficiency, increasing the contact area by the connecting scraping block 374, so as to improve the friction performance, further improve the cleaning effect, and improve the cleaning efficiency.

[0040] The cleaning mechanism 38 comprises a cleaning support 381, the side of the cleaning support 381 away from the connecting column 371 is fixedly connected with a receiving frame 382, the outer side of the receiving frame 382 is fixedly connected with a cylindrical block 383, and the outer side of the cylindrical block 383 is provided with a cylindrical groove 384. The friction column 373 is rotated and frictionally matched with the cylindrical block 383, so as to achieve the effect of cleaning the impurities on the surface of the parts, avoiding excessive accumulation of impurities, preventing the subsequent friction effect from being affected, and the cylindrical groove 384 is provided, the groove is provided to enhance the chip removal effect and reduce the adsorption of debris, so as to keep the surface of the parts clean, prevent the impurities from causing corrosion to the parts, thereby prolonging the service life of the parts.

[0041] In use, the hot medium enters from the hot inflow pipe 18, the cold medium enters from the cold inflow pipe 16, the cold medium and the hot medium are connected at the adjusting mechanism 14 to complete the heat exchange of the medium, thereby meeting the heat exchange requirement, the cold medium enters from the upper half of the composite mechanism 2, enters the lower half of the composite mechanism 2 at the rear pipe box 15, and finally is discharged from the cold outflow pipe 17, and the hot medium is discharged from the hot outflow pipe 19 after being connected with the composite mechanism 2 inside the adjusting mechanism 14, thereby achieving reciprocating circulation to keep the device continuously operating, the heat exchange area of the device can be adjusted by the adjusting mechanism 14 to adjust the heat exchange area to meet the process requirement, in the chemical industry, petroleum industry and other industries, different production processes and working conditions have great differences in heat transfer requirements, for example, in some petroleum cracking processes, different cracking stages require different heat supply, by adjusting the heating area of the tubular heat exchanger, a larger heating area can be provided in the temperature rising stage to quickly raise the temperature, and the heating area is reduced in the later reaction stage to accurately control the reaction progress, ensure the product quality and yield, and improve the heat exchange efficiency, meanwhile, the butt joint mechanism 146 is arranged inside the adjusting mechanism 14, which buffers the expansion and contraction of the parts to reduce the wear between the parts, thereby prolonging the service life of the parts, secondly, the butt joint mechanism 146 limits the sliding of the parts to avoid damage caused by excessive contraction, thereby keeping the device intact, the spiral plate 23 is arranged inside the composite mechanism 2, which changes the flow mode of the medium by the spiral plate 23 to make the liquid rotate, increases the turbulence degree by rotation, improves the heat exchange efficiency, prevents dirt accumulation, and flushes the pipe wall surface to reduce impurity accumulation, the rotating fluid constantly impacts the pipe wall to prevent dirt accumulation, keeps the inner wall of the pipe clean, and prolongs the service life of the pipe, finally, the medium flows from the composite mechanism 2 to the rear pipe box 15 and is connected with the treatment mechanism 3, which cleans the impurities on the inner wall of the device to reduce impurity accumulation and keep the device smooth.

[0042] Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art and related fields without creative labor shall fall within the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless otherwise specified and limited.

Claims

1. A shell-and-tube heat exchanger with adjustable heat exchange area, characterized in that, It includes a heat exchange mechanism (1), a frame (4) is fixedly connected to the outside of the heat exchange mechanism (1), a composite mechanism (2) is fixedly connected to the middle of the inside of the heat exchange mechanism (1), and a processing mechanism (3) is fixedly connected to one side of the inside of the heat exchange mechanism (1). The heat exchange mechanism (1) includes a front tube box (11), an adjustment mechanism (14) is fixedly connected to one side of the outside of the front tube box (11), a sealing plate (12) is fixedly connected to one side of the inner wall of the adjustment mechanism (14), one side of the outside of the sealing plate (12) is fixedly connected to the outside of the composite mechanism (2), baffles (13) are fixedly connected to both sides of the inner wall of the adjustment mechanism (14), and a rear tube box (15) is fixedly connected to the side of the adjustment mechanism (14) away from the front tube box (11). The inner side of the rear pipe box (15) is fixedly connected to the outer side of the processing mechanism (3). A cold inflow pipe (16) is fixedly connected to one side of the front pipe box (11). A cold outflow pipe (17) is fixedly connected to the side of the front pipe box (11) away from the cold inflow pipe (16). A hot inflow pipe (18) is fixedly connected to the side of the adjustment mechanism (14) near the cold inflow pipe (16). A hot outflow pipe (19) is fixedly connected to the side of the adjustment mechanism (14) near the rear pipe box (15). The adjustment mechanism (14) includes an adjustment housing (141), an electric push rod (142) is fixedly connected to one side of the adjustment housing (141), an external end (143) is fixedly connected to the side of the electric push rod (142) away from the adjustment housing (141), and a cylindrical housing (144) is fixedly connected to the side of the external end (143). The composite mechanism (2) includes a cylindrical tube (21), a sliding tube (22) is slidably connected to the inner wall of the cylindrical tube (21), a spiral plate (23) is fixedly connected to the inner wall of the sliding tube (22) on the side near the front tube box (11), and a rotating mechanism (24) is fixedly connected to the inner wall of the sliding tube (22). The processing mechanism (3) includes a processing base (31), one side of the processing base (31) is fixedly connected to the inner wall of the rear tube box (15), a second bearing (32) is fixedly connected to the side of the processing base (31) away from the rear tube box (15), a connecting column (33) is fixedly connected to the inner side of the second bearing (32), a processing end block (34) is fixedly connected to the side of the connecting column (33) away from the processing base (31), a square paddle frame (35) is inserted and connected to the outer side of the processing end block (34), a paddle plate (36) is fixedly connected to the inner side of the square paddle frame (35), a friction mechanism (37) is fixedly connected to the middle of the outer side of the connecting column (33), and a cleaning mechanism (38) is fixedly connected to the inner side of the friction mechanism (37).

2. A shell-and-tube heat exchanger with adjustable heat exchange area according to claim 1, characterized in that: An outer plate (145) is fixedly connected to the side of the cylindrical shell (144) near the adjusting shell (141). A docking mechanism (146) is fixedly connected to the middle of the inner wall of the adjusting shell (141). A groove is opened on the side of the outer plate (145) near the docking mechanism (146).

3. A shell-and-tube heat exchanger with adjustable heat exchange area according to claim 2, characterized in that: The docking mechanism (146) includes an annular frame (1461), the outer side of which is fixedly connected to the inner wall of the adjusting housing (141), a cylindrical housing (1462) is fixedly connected to the inner side of the annular frame (1461), a spring strip (1463) is fixedly connected to the inner side of the cylindrical housing (1462), a sliding block (1464) is fixedly connected to the outer side of the spring strip (1463) away from the cylindrical housing (1462), an annular baffle (1465) is fixedly connected to the outer side of the sliding block (1464) away from the cylindrical housing (1462), and a plug-in block (1466) is fixedly connected to the outer side of the annular baffle (1465) away from the sliding block (1464).

4. A shell-and-tube heat exchanger with adjustable heat exchange area according to claim 1, characterized in that: The rotating mechanism (24) includes a fixed frame (241), the outer side of the fixed frame (241) is fixedly connected to the inner wall of the sliding tube (22), a connecting rod (242) is fixedly connected between opposite faces of the fixed frame (241), a first bearing (243) is fixedly connected to the outer side of the connecting rod (242), and a square paddle (244) is fixedly connected to the outer side of the first bearing (243).

5. A shell-and-tube heat exchanger with adjustable heat exchange area according to claim 1, characterized in that: The friction mechanism (37) includes a connecting column (371), the inner side of which is fixedly connected to the outer side of the connecting column (33), a trapezoidal bracket (372) is fixedly connected to the outer side of the connecting column (371), a friction column (373) is rotatably connected between the opposite surfaces of the trapezoidal bracket (372), a connecting scraper (374) is fixedly connected to the outer side of the friction column (373), and the inner side of the trapezoidal bracket (372) is fixedly connected to the outer side of the cleaning mechanism (38).

6. A shell-and-tube heat exchanger with adjustable heat exchange area according to claim 5, characterized in that: The cleaning mechanism (38) includes a cleaning bracket (381), and a receiving frame (382) is fixedly connected to the side of the cleaning bracket (381) away from the connecting column (371). A columnar block (383) is fixedly connected to the outside of the receiving frame (382), and a columnar groove (384) is opened on the outside of the columnar block (383).

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