A rotary drum molten salt heat exchanger

Abstract

The application discloses a roller type molten salt heat exchanger and relates to the technical field of heat exchangers, which comprises a heat exchanger body and a support structure matched for bearing the heat exchanger body, the bottom plate top surface of the support structure is provided with a plurality of sets of support mechanisms, and the plurality of sets of support mechanisms are uniformly distributed at the bottom of the heat exchanger body; two sets of pressure sensors and inclined wedge lifting assemblies are arranged in each set of support mechanisms, the bearing load of two supporting wheels in the mechanism can be collected in real time, the controller drives the hydraulic rod to drive the adjusting plate and the adjusting inclined block to act, the dynamic balance of the load of the double supporting wheels in the single set of support mechanisms is realized, manual leveling is not needed during shutdown, the problem of uneven load distribution caused by high-temperature thermal deflection is effectively solved, the overloading wear of the supporting wheels and the damage of bearings are avoided, the precision of the rotary axis of the cylinder body is ensured, the misplacement leakage of the end rotary seal is reduced, and the operation reliability of the equipment is improved.

Description

Technical Field

[0001] This invention belongs to the field of heat exchanger technology, specifically a drum-type molten salt heat exchanger. Background Technology

[0002] A drum-type molten salt heat exchanger is an indirect heat exchange device that uses a rotating drum as the heat exchange substrate and molten salt as the heat transfer medium. A drive mechanism rotates the drum at a constant speed. The drum's interior is arranged with heat exchange channels and a header structure. The molten salt circulates within the heat exchange pipes on the drum wall, while the high-temperature medium to be exchanged is introduced into the drum space, achieving heat transfer through the drum wall. The drum's rotation enhances convective heat transfer, reduces molten salt solidification and scaling, and improves heat exchange efficiency. It is widely used in high-temperature waste heat recovery and solar thermal storage, enabling efficient recovery of high-temperature heat, adapting to large temperature difference conditions, and featuring a compact structure, resistance to clogging, and stable operation.

[0003] Most existing drum-type molten salt heat exchangers adopt a rigid roller support structure. After the double-layer jacketed cylinder is filled with high-temperature molten salt, the overall load is large. Under high-temperature conditions, the cylinder is prone to thermal bending deformation, resulting in uneven load distribution among multiple sets of rollers under the same cylinder. This leads to problems such as roller overload wear and bearing failure. At the same time, the support structure can only be manually leveled after the machine is stopped, and it is impossible to achieve dynamic load balance when the equipment is running under load. Long-term uneven stress can also cause misalignment and leakage of the end rotary seal, reducing the stability and reliability of the equipment operation. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention proposes a drum-type molten salt heat exchanger.

[0005] The objective of this invention can be achieved through the following technical solutions: A drum-type molten salt heat exchanger includes a heat exchanger body and a support structure for supporting the heat exchanger body. The top surface of the bottom plate of the support structure is provided with multiple sets of support mechanisms, which are evenly distributed at the bottom of the heat exchanger body. The support mechanism includes a base plate that can be detachably installed on the top surface of the bracket structure base plate. A control box is fixedly connected to the top surface of the base plate. Lifting blocks are slidably connected to the inner walls of the two mutually distant sides of the control box. A fixing block is detachably installed on the top of each lifting block. A pressure sensor is provided between the lifting block and the fixing block. A mounting frame is detachably installed on the top of each fixing block. A support roller is rotatably connected to the top of the mounting frame through a bearing. The control box also includes a hydraulic rod, an adjusting plate, and a controller. The hydraulic rod is electrically connected to the controller and is controlled by the controller to start and stop. The hydraulic rod is used to drive the adjusting plate to slide horizontally. Both ends of the adjusting plate are fixedly connected to adjusting blocks. The inclined top surfaces of the two adjusting blocks slide against the inclined bottom surfaces of the two lifting blocks, respectively. Each of the aforementioned adjusting blocks is provided with a lubrication assembly for lubricating the lifting and adjusting blocks; Each of the aforementioned fixing blocks is equipped with a cleaning component for cleaning the support rollers.

[0006] As a further preferred embodiment of this technical solution: each of the lifting inclined blocks has a connecting plate 1 fixedly connected to its top surface, and a connecting plate 2 is detachably connected to the top surface of the connecting plate 1. The connecting plate 1, its top surface, and the bottom surface of the connecting plate 2 are all provided with mounting grooves, and the pressure sensor is detachably installed in the two mounting grooves.

[0007] As a further preferred embodiment of this technical solution: the hydraulic rod is detachably mounted on the bottom surface of the inner cavity of the control box, and the telescopic end of the hydraulic rod is detachably connected to the bottom end of the adjustment plate.

[0008] As a further preferred embodiment of this technical solution: the lubrication assembly includes an oil pump and an oil storage tank that are detachably mounted on the side wall of the adjusting swashplate. The oil pump has an oil inlet pipe that is detachably mounted on its oil inlet end, and the oil inlet end of the oil inlet pipe is detachably connected to the oil outlet end of the oil storage tank. The top surface of the adjusting inclined block is provided with multiple oil outlet holes, and the side wall of the adjusting inclined block is provided with an oil supply channel communicating with the multiple oil outlet holes. The oil inlet end of the oil supply channel is fixedly connected to an oil inlet pipe, and the oil outlet end of the oil pump is detachably connected to an oil outlet pipe. The oil outlet end of the oil outlet pipe is detachably connected to the oil inlet end of the oil inlet pipe.

[0009] As a further preferred embodiment of this technical solution, the top surface of each of the adjusting inclined blocks is also provided with multiple oil guide grooves.

[0010] As a further preferred embodiment of this technical solution: the cleaning component includes a collection groove and an installation groove formed on the top surface of the fixed block, and a scraper is provided above the collection groove, with the top of the scraper abutting against the surface of the support roller.

[0011] As a further preferred embodiment of this technical solution: an installation plate is detachably installed on the bottom surface of the inner cavity of the installation groove, and uprights are fixedly connected to both sides of the top surface of the installation plate. Circular holes are opened on the side walls of the two uprights that are close to each other. A rotating shaft is rotatably connected to the two circular holes through a torsion spring. A connecting plate is fixedly connected to the surface of the rotating shaft, and the surface of the connecting plate is detachably connected to the bottom of the scraper.

[0012] As a further preferred embodiment of this technical solution: the rotation of the heat exchanger body cylinder is used to drive multiple support rollers to rotate synchronously.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, each set of support mechanisms is equipped with two sets of pressure sensors and wedge lifting components, which can collect the load on the two support rollers of the mechanism in real time. The controller drives the hydraulic rod to drive the adjustment plate and the adjustment block to achieve dynamic balance of the load on the two support rollers inside a single set of support mechanisms. There is no need to stop the machine for manual leveling, which effectively solves the problem of uneven load distribution caused by high temperature thermal deflection, avoids overload wear of the support rollers and damage to the bearings, ensures the accuracy of the cylinder rotation axis, reduces end rotation seal misalignment and leakage, and improves the reliability of equipment operation.

[0014] 2. The present invention is equipped with a lubrication component on the adjusting wedge block. The high-temperature resistant lubricating oil in the oil tank is evenly distributed on the inclined mating surface of the adjusting wedge block and the lifting wedge block through the oil outlet and oil guide groove by the oil pump. This can reduce the sliding friction resistance of the wedge pair, reduce dry friction and abrasive wear in high temperature and dust environment, maintain the adjustment sensitivity and height control accuracy of the wedge mechanism, delay the failure of transmission components, extend the overall service life of the support mechanism, and ensure the long-term stable operation of the dynamic leveling function under load.

[0015] 3. The present invention sets an elastic pre-tightening cleaning component on the fixed block. The torsion spring keeps the scraper in contact with the outer surface of the support roller. When the cylinder rotates and drives the support roller to rotate synchronously, the scraper scrapes off the dust and oxide scale adhering to the surface of the support roller. Impurities fall into the collection tank for centralized collection. It can automatically compensate for the wear of the scraper, prevent hard impurities from entering the contact surface between the support roller and the cylinder, avoid poor contact that causes load fluctuations, further ensure the load distribution accuracy of the support mechanism, and reduce the probability of equipment failure. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the support mechanism of the present invention; Figure 3 This is a structural schematic diagram of the support mechanism of the present invention from another perspective; Figure 4 This is a schematic diagram of the lubrication assembly of the present invention; Figure 5 This is a schematic diagram of the cleaning component of the present invention.

[0017] Legend: 2. Heat exchanger body; 3. Support mechanism; 31. Base plate; 32. Control box; 33. Lifting ramp; 34. Connecting plate one; 35. Connecting plate two; 36. Fixing block; 37. Mounting bracket; 38. Support roller; 39. Cleaning assembly; 301. Hydraulic rod; 302. Adjusting plate; 303. Adjusting ramp; 304. Lubrication assembly; 391. Collection trough; 392. Mounting trough; 393. Mounting plate; 394. Upright pole; 395. Rotating shaft; 396. Connecting plate; 397. Scraper; 3041, Oil outlet; 3042, Oil pump; 3043, Oil inlet pipe; 3044, Oil storage tank; 3045, Oil drain pipe; 3046, Oil guide groove. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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. Example 1

[0019] Please see Figures 1-5 This application provides a drum-type molten salt heat exchanger, including a heat exchanger body 2 and a supporting structure for supporting the heat exchanger body 2. The top surface of the bottom plate of the supporting structure is provided with multiple sets of support mechanisms 3, which are evenly distributed at the bottom of the heat exchanger body 2. The multiple sets of support mechanisms 3 are arranged in pairs along the axial direction of the heat exchanger body 2 corresponding to the position of the cylinder. Each set of support mechanisms 3 has independent height adjustment capability, which can adapt to the axial deflection changes caused by the high temperature thermal deflection of the cylinder, and structurally eliminate the load distribution deviation of the rigid support. The rotation of the cylinder of the heat exchanger body 2 is used to drive multiple support rollers 38 distributed on both sides of the bottom of the cylinder to rotate synchronously.

[0020] The support mechanism 3 includes a base plate 31 detachably mounted on the top surface of the support structure base plate. The base plate 31 is made of Q235B steel plate, cut and formed, and the surface is precision machined for flatness. It is rigidly connected to the support structure base plate by 8 sets of high-strength anchor bolts to ensure the structural rigidity and anti-overturning capacity of the support base. A control box 32 is fixedly connected to the top surface of the base plate 31. One side wall and the top wall of the control box 32 are detachable for easy maintenance or replacement of internal components. Vertical guide rail grooves are provided on both sides of the inner cavity of the control box 32 to provide stable vertical sliding guidance for the lifting inclined blocks 33. At the same time, the cast iron material can absorb operating vibration and improve operating stability. Lifting inclined blocks 33 are slidably connected to the inner walls of the two opposite sides of the control box 32. The top of each lifting inclined block 33 is detachably mounted with a fixed... A pressure sensor is provided between the fixed block 36 and the lifting inclined block 33 and the fixed block 36. The pressure sensor is a column-type load cell with a high-temperature resistant silicone rubber encapsulation structure, which can work stably for a long time in high-temperature environments and is suitable for the high-temperature radiation environment around the heat exchanger. The pressure sensor can collect the vertical load of the corresponding support roller 38 in real time and transmit it to the controller, accurately identify the load deviation of each support roller under the same cylinder, and provide closed-loop feedback basis for dynamic leveling. The top of each fixed block 36 can be detachably installed with a mounting bracket 37, and the top of the mounting bracket 37 is rotatably connected to the support roller 38 through a bearing. The support roller 38 is made of cast steel and the wheel surface is treated with medium frequency quenching. It is equipped with double row self-aligning roller bearings, and the rated dynamic load meets the long-term rotation requirements under heavy load conditions. The control box 32 also includes a hydraulic rod 301, an adjusting plate 302, and a controller. The controller is a PLC programmable controller with analog signal acquisition and proportional output control functions. It can simultaneously connect to multiple pressure sensor signals and synchronously control multiple hydraulic actuators. The hydraulic rod 301 is used to drive the adjusting plate 302 to slide horizontally. The hydraulic rod 301 is a double-acting engineering hydraulic cylinder with a built-in magnetostrictive displacement sensor, which can accurately control the extension stroke and realize the micro-precision adjustment of the support height of the support roller. Both ends of the adjusting plate 302 are fixedly connected to adjusting blocks 303. The inclined top surfaces of the two adjusting blocks 303 slide against the inclined bottom surfaces of the two lifting blocks 33 respectively. The lifting blocks 33 and adjusting blocks 303 are both forged from 40Cr alloy steel. The inclined mating surfaces are integrally quenched, with excellent wear resistance. They can stably maintain the support height under heavy loads without the risk of slippage and fall. The horizontal driving force is converted into vertical lifting force through the wedge transmission. The transmission is smooth and the load-bearing capacity is strong, which can be adapted to the large load cylinder after filling with molten salt. Each lifting inclined block 33 has a connecting plate 34 fixedly connected to its top surface. The connecting plate 34 has a connecting plate 35 detachably connected to its top surface. The connecting plate 34 and its top surface, as well as the connecting plate 35, have mounting slots. The pressure sensor can be detachably installed in the two mounting slots. The split-type embedded structure facilitates the disassembly, calibration, maintenance, and replacement of the pressure sensor. The closed mounting slot can isolate high-temperature radiation and dust intrusion, ensuring detection accuracy and long-term operational reliability. The hydraulic rod 301 is detachably mounted on the bottom surface of the inner cavity of the control box 32, and the telescopic end of the hydraulic rod 301 is detachably connected to the bottom end of the adjusting plate 302.

[0021] In practice, during equipment operation, two sets of pressure sensors inside the same support mechanism 3 detect the load-bearing capacity of the two support rollers 38 in real time and transmit the data to the controller. When the cylinder is subjected to high-temperature molten salt load and undergoes thermal flexural deformation, it will cause an imbalance in the load distribution between the two support rollers 38 inside the same support mechanism 3. After receiving and comparing the two pressure signals, the controller sends an adjustment command to the hydraulic rod 301 of the support mechanism 3. The hydraulic rod 301 extends and retracts, driving the adjustment plate 302 to slide horizontally, which in turn drives the adjustment blocks 303 at both ends of the adjustment plate 302 to move synchronously towards or away from each other horizontally. The adjustment blocks 303 on both sides slide and cooperate with the inclined surfaces of their respective lifting blocks 33, respectively. The two lifting blocks 33 on the left and right sides are driven to make independent vertical lifting and lowering movements along the inner wall of the control box 32, thereby adjusting the support height of the two support rollers 38 on the support mechanism 3 respectively. By lowering the overloaded support rollers 38 and raising the underloaded support rollers 38 inside the support mechanism 3, the load balance between the two support rollers 38 inside the single support mechanism 3 is achieved, realizing in-situ dynamic leveling under the load condition of the equipment. This avoids wheel surface wear and bearing failure caused by long-term overload of a single support roller 38 in the same support mechanism 3. At the same time, it ensures uniform force on the cylinder, maintains the position accuracy of the cylinder rotation axis, suppresses the phenomenon of misalignment and leakage of the end rotation seal, and improves the reliability of the entire drum-type molten salt heat exchanger for continuous high-temperature operation. Example 2

[0022] Based on Embodiment 1, each adjusting wedge 303 is provided with a lubrication component 304 for lubricating the lifting wedge 33 and the adjusting wedge 303. In order to address the problem that the sliding surface of the wedge is prone to dry friction and increased wear under high temperature conditions, which leads to a decrease in adjustment accuracy, an integrated lubrication component 304 is added to continuously lubricate the wedge mating surface, reduce frictional resistance and wear, and ensure the smoothness and accuracy of height adjustment. The lubrication assembly 304 includes an oil pump 3042 and an oil tank 3044 detachably mounted on the side wall of the adjusting ramp 303. The oil pump 3042 is a miniature DC gear oil pump with intermittent oil supply control function, which can be used with the controller to achieve timed and quantitative lubrication to avoid oil waste. The oil tank 3044 is welded from 304 stainless steel plate. The tank body is equipped with a sealed end cover and a visual oil level observation window. It stores high-temperature resistant synthetic gear oil to meet the oil storage and use requirements under high-temperature conditions. The oil inlet end of the oil pump 3042 is detachably mounted with an oil inlet pipe 3043. Both the oil inlet pipe 3043 and the oil outlet pipe 3045 are made of high-temperature resistant fluororubber hoses, which can bend and move synchronously with the adjusting ramp 303 without the risk of pipeline interference. The oil inlet end of the oil inlet pipe 3043 is detachably connected to the oil outlet end of the oil tank 3044. The top surface of the adjusting wedge 303 is provided with multiple oil outlet holes 3041, each with a diameter of 2mm. Six sets of these holes are evenly distributed along the longitudinal direction of the inclined surface of the adjusting wedge 303. The openings of the holes are chamfered to prevent clogging by impurities. The side wall of the adjusting wedge 303 is provided with an oil supply channel that communicates with the multiple oil outlet holes 3041. The oil inlet end of the oil supply channel is fixedly connected to an oil inlet pipe. The oil outlet end of the oil pump 3042 is detachably connected to an oil outlet pipe 3045. The oil outlet end of the oil outlet pipe 3045 is detachably connected to the oil inlet end of the oil inlet pipe. The multi-point oil outlet layout allows the lubricating oil to evenly cover the entire wedge sliding surface, avoiding uneven wear caused by local oil shortage. The built-in oil supply channel has no external leakage pipelines and can be adapted to the high-temperature and dusty operating environment inside the equipment. The top surface of the adjusting wedge block 303 is also provided with multiple oil guide grooves 3046. The oil guide grooves 3046 can extend the residence time of lubricating oil on the sliding surface, help form a stable and continuous lubricating oil film, and at the same time accommodate a small amount of wear debris, reducing the impact of abrasive wear on the accuracy of the mating surface.

[0023] In practice, during equipment operation, the oil pump 3042 starts at set intervals, drawing lubricating oil from the oil storage tank 3044 through the oil inlet pipe 3043, and delivering it to the oil supply channel inside the adjusting wedge 303 through the oil outlet pipe 3045. Finally, the lubricating oil flows evenly from each oil outlet hole 3041 to the wedge mating surface. The lubricating oil spreads along the oil guide groove 3046 to cover the entire sliding contact surface, forming a continuous lubricating film between the adjusting wedge 303 and the lifting wedge 33. This reduces the friction coefficient when the inclined surfaces slide relative to each other, reduces structural wear and adjustment resistance, ensures the response speed and adjustment accuracy of dynamic leveling actions, and effectively extends the service life of the wedge transmission structure. Example 3

[0024] Based on the above embodiments, each fixed block 36 is provided with a cleaning component 39 for cleaning the support roller 38. The elastic follow-up cleaning component 39 is provided to continuously scrape and clean the working surface of the support roller 38 to maintain the contact accuracy between the cylinder and the support roller 38.

[0025] The cleaning component 39 includes a collection groove 391 and an installation groove 392 on the top surface of the fixed block 36. The collection groove 391 can collect the dust and shavings that are scraped off, and can be cleaned regularly to prevent impurities from scattering and accumulating and affecting the operation of surrounding components. A scraper 397 is provided above the collection groove 391. The top of the scraper 397 abuts against the surface of the support roller 38. The scraper 397 is made of tin bronze-based alloy material to ensure the effect of scraping off impurities while reducing its own wear rate.

[0026] The mounting plate 393 is detachably mounted on the bottom surface of the inner cavity of the mounting slot 392. The mounting plate 393 is fixed to the bottom of the mounting slot 392 by four sets of internal hex bolts, making it easy to disassemble and assemble, and facilitating the overall replacement of the cleaning component 39. Uprights 394 are fixedly connected to both sides of the top surface of the mounting plate 393. Both the uprights 394 and the rotating shaft 395 are made of 304 stainless steel, possessing excellent high-temperature resistance and rust resistance. The clearance between the rotating shaft and the round hole of the upright is 0.1mm, ensuring smooth rotation without jamming. Round holes are opened on the side walls of the two uprights 394 that are close to each other, and torsion springs connect the two round holes for joint rotation. The device is equipped with a rotating shaft 395. The torsion spring is made of 65Mn spring steel, cold-wound and tempered. The preload torque is 5 N·m, which can provide stable contact pressure and stable elastic performance. It is suitable for high-temperature environments around the equipment. A connecting plate 396 is fixedly connected to the surface of the rotating shaft 395. The surface of the connecting plate 396 is detachably connected to the bottom of the scraper 397. The torsion spring preload structure can ensure that the scraper 397 always contacts the surface of the support roller 38 with constant pressure, automatically compensates for the wear of the scraper 397, and ensures a long-term stable cleaning effect. The detachable scraper 397 is easy to replace after wear, reducing maintenance costs.

[0027] In practice, when the heat exchanger body 2 rotates, it drives the support roller 38 to rotate synchronously. Under the elastic force of the torsion spring, the scraper 397 is always in close contact with the outer circumferential working surface of the support roller 38. During the rotation of the support roller 38, the scraper 397 scrapes off the dust, scale, and wear debris adhering to its surface. The fallen impurities fall into the collection tank 391 below and are collected in a concentrated manner, preventing impurities from entering the contact surface between the shell and the support roller 38 and causing abnormal wear and load fluctuations. After the scraper 397 wears, the torsion spring drives the connecting plate 396 to rotate slightly through the rotating shaft 395, automatically compensating for the wear, maintaining the contact pressure between the scraper 397 and the support roller 38, ensuring the cleaning effect in the long term, improving the contact accuracy between the support roller 38 and the shell, and further ensuring the uniformity of load distribution and the stability of equipment operation.

[0028] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A drum-type molten salt heat exchanger, comprising a heat exchanger body (2) and a supporting structure for supporting the heat exchanger body (2), characterized in that: The top surface of the base plate of the support structure is provided with multiple sets of support mechanisms (3), which are evenly distributed at the bottom of the heat exchanger body (2). The support mechanism (3) includes a base plate (31) that can be detachably installed on the top surface of the support structure base plate. A control box (32) is fixedly connected to the top surface of the base plate (31). Lifting blocks (33) are slidably connected to the inner walls of the two sides of the control box (32) that are far apart from each other. A fixing block (36) is detachably installed on the top of each lifting block (33). A pressure sensor is provided between the lifting block (33) and the fixing block (36). A mounting bracket (37) is detachably installed on the top of each fixing block (36). A support roller (38) is rotatably connected to the top of the mounting bracket (37) through a bearing. The control box (32) is also equipped with a hydraulic rod (301), an adjusting plate (302) and a controller. The hydraulic rod (301) is electrically connected to the controller and is controlled by the controller to start and stop. The hydraulic rod (301) is used to drive the adjusting plate (302) to slide horizontally. Both ends of the adjusting plate (302) are fixedly connected with adjusting blocks (303). The inclined top surfaces of the two adjusting blocks (303) slide against the inclined bottom surfaces of the two lifting blocks (33). Each of the aforementioned adjusting blocks (303) is provided with a lubrication assembly (304) for lubricating the lifting blocks (33) and the adjusting blocks (303). Each of the fixed blocks (36) is provided with a cleaning component (39) for cleaning the support roller (38).

2. A drum-type molten salt heat exchanger according to claim 1, characterized in that, Each of the lifting inclined blocks (33) has a connecting plate 1 (34) fixedly connected to its top surface. The connecting plate 1 (34) has a connecting plate 2 (35) detachably connected to its top surface. The connecting plate 1 (34), its top surface, and the bottom surface of the connecting plate 2 (35) are all provided with mounting grooves. The pressure sensor can be detachably installed in the two mounting grooves.

3. A drum-type molten salt heat exchanger according to claim 1, characterized in that, The hydraulic rod (301) is detachably mounted on the bottom surface of the inner cavity of the control box (32), and the telescopic end of the hydraulic rod (301) is detachably connected to the bottom end of the adjusting plate (302).

4. A drum-type molten salt heat exchanger according to claim 1, characterized in that, The lubrication assembly (304) includes an oil pump (3042) and an oil reservoir (3044) detachably mounted on the side wall of the adjusting ramp (303). The oil pump (3042) has an oil inlet pipe (3043) detachably mounted on its oil inlet end. The oil inlet end of the oil inlet pipe (3043) is detachably connected to the oil outlet end of the oil reservoir (3044). The top surface of the adjusting inclined block (303) is provided with multiple oil outlet holes (3041), and the side wall of the adjusting inclined block (303) is provided with an oil supply channel communicating with the multiple oil outlet holes (3041). The oil inlet end of the oil supply channel is fixedly connected with an oil inlet pipe, and the oil discharge end of the oil pump (3042) is detachably connected to the oil inlet end of the oil inlet pipe through an oil discharge pipe (3045).

5. A drum-type molten salt heat exchanger according to claim 4, characterized in that, The top surface of the adjusting inclined block (303) is also provided with multiple oil guide grooves (3046).

6. A drum-type molten salt heat exchanger according to claim 1, characterized in that, The cleaning component (39) includes a collection groove (391) and a mounting groove (392) formed on the top surface of the fixing block (36). A scraper (397) is provided above the collection groove (391), and the top of the scraper (397) abuts against the surface of the roller (38).

7. A drum-type molten salt heat exchanger according to claim 6, characterized in that, The mounting plate (393) is detachably mounted on the bottom surface of the inner cavity of the mounting groove (392). The top surface of the mounting plate (393) is fixedly connected to both sides of the top surface of the mounting plate (393). The two uprights (394) have round holes on their adjacent side walls. The two round holes are connected to a rotating shaft (395) by a torsion spring. The surface of the rotating shaft (395) is fixedly connected to a connecting plate (396). The surface of the connecting plate (396) is detachably connected to the bottom of the scraper (397).

8. A drum-type molten salt heat exchanger according to claim 1, characterized in that, The rotation of the heat exchanger body (2) is used to drive multiple rollers (38) to rotate synchronously.

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