Leak-tight fixed bed hydrogenation reactor apparatus

Abstract

The utility model relates to hydrogenation reactor field, and disclose a kind of leakage-proof fixed bed hydrogenation reactor equipment, including hydrogenation reactor, the top of hydrogenation reactor is fixed with the material port for taking or charging, one end of hydrogenation reactor is fixed with sealing cover A, the other end of hydrogenation reactor is slidably installed with sealing cover B, the outside of sealing cover A is fixedly installed with component board, the top of component board is fixedly installed with drive cylinder, the both sides outer wall of hydrogenation reactor is all fixedly connected with fixed plate, and sliding rod is slidably installed on two groups of fixed plate, further include material scraping and cleaning component, the telescopic movement of drive cylinder piston rod, drive scraping ring to slide in reactor inner wall, effectively scrape and remove the impurities such as reaction product, catalyst particle etc. remaining in inner wall, this kind of automatic cleaning mode not only improves cleaning efficiency, significantly improves overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hydrogenation reactors, specifically a leak-proof fixed-bed hydrogenation reactor device. Background Technology

[0002] In the petrochemical and coal chemical industries, hydrogenation is a crucial chemical reaction process, widely used in oil upgrading, heavy oil refining, and coal liquefaction. The hydrogenation reactor, as the core equipment in the hydrogenation reaction, directly impacts the efficiency and product quality of the entire production process due to its stability and safety. In actual production, the interior of the hydrogenation reactor operates under high temperature, high pressure, and strong corrosive conditions, easily leading to the accumulation of reaction products, catalyst particles, or other impurities on the reactor's inner wall. These residues not only affect the reactor's heat transfer efficiency and reduce reaction selectivity but can also accelerate equipment corrosion, shorten its lifespan, and even cause safety accidents in extreme cases. Traditional methods to address these issues often involve periodic shutdowns for maintenance and manual or mechanical cleaning of the reactor interior. However, this approach is complex, costly, inefficient, and difficult to completely remove residues. Cleaning is particularly challenging when handling high-viscosity, coking-prone materials. Therefore, we propose a leak-proof fixed-bed hydrogenation reactor. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a leak-proof fixed-bed hydrogenation reactor, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a leak-proof fixed-bed hydrogenation reactor device, comprising a hydrogenation reactor, wherein a material inlet for feeding or loading is fixedly provided at the top of the hydrogenation reactor, a sealing cover A is fixedly provided at one end of the hydrogenation reactor, a sealing cover B is slidably installed at the other end of the hydrogenation reactor, a component plate is fixedly installed on the outer side of the sealing cover A, a drive cylinder is fixedly installed on the top of the component plate, and fixed plates are fixedly connected to both outer walls of the hydrogenation reactor, and sliding rods are slidably installed on both sets of fixed plates, further comprising:

[0005] The scraping and cleaning assembly is installed inside the hydrogenation reactor and is used to scrape off residual substances from the inner wall of the hydrogenation reactor.

[0006] Preferably, the scraping and cleaning assembly includes a protruding rod, a scraper ring, and a retainer. The piston rod on the drive cylinder slides into the hydrogenation reactor. Four sets of retainers arranged in a cross shape are fixedly connected to the piston rod on the outer wall of the hydrogenation reactor. A scraper ring for scraping off residual substances on the inner wall of the hydrogenation reactor is slidably installed on the inner wall of the hydrogenation reactor. A protruding rod is fixedly connected to the end of the piston rod. The ends of the four sets of retainers opposite to the piston rod are all fixedly connected to the inner wall of the scraper ring.

[0007] Preferably, the scraper ring is circular, and the outer wall of the scraper ring is in close contact with the inner wall of the hydrogenation reactor.

[0008] Preferably, the outer wall of the sealing cover B has an annular groove near the inner side, and a rubber sealing ring for sealing is fitted on the outer wall of the groove.

[0009] Preferably, a linkage plate is fixedly connected between the ends of the two sets of sliding rods corresponding to the outer side of the sealing cover B, and a connecting rod is fixedly connected to the middle position on one side of the linkage plate, with the end of the connecting rod away from the linkage plate fixedly connected to the center position on one side of the sealing cover B.

[0010] Preferably, the two sets of sliding rods extend out of the two sets of fixed plates from one end away from the linkage plate and are fitted with limiting covers. A return spring is fitted between the fixed plate and the limiting cover on the outer wall of the sliding rod.

[0011] Preferably, the top of the two sets of fixing plates is slidably mounted with a plug rod, the top of the plug rod is fitted with a round cover, and the top outer wall of the sliding rod is provided with a round hole that matches the plug rod at the middle position. The ends of the two sets of plug rods are slidably inserted into the two sets of round holes respectively.

[0012] Compared with the prior art, this utility model provides a leak-proof fixed-bed hydrogenation reactor device, which has the following beneficial effects:

[0013] 1. This leak-proof fixed-bed hydrogenation reactor equipment uses the extension and retraction of the piston rod of the drive cylinder to drive the scraper ring to slide on the inner wall of the reactor, effectively scraping and removing residual reaction products, catalyst particles and other impurities on the inner wall. This automated cleaning method not only improves cleaning efficiency, but also significantly enhances overall production efficiency.

[0014] 2. This leak-proof fixed-bed hydrogenation reactor features a specially reinforced sealing structure. It employs a combination of a rubber sealing ring and a limiting cap to form a double sealing barrier between the sealing cap B and the reactor end. This design not only enhances the sealing effect, effectively preventing the leakage of flammable and explosive gases such as hydrogen, but also ensures the stable position of the sealing cap during cleaning and normal production processes through the rebound force of the return spring, further improving the safety performance of the equipment.

[0015] 3. This leak-proof fixed-bed hydrogenation reactor equipment allows for more thorough cleaning of the scraper ring by pushing it out for cleaning, thereby improving the efficiency of subsequent scraper ring operations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the hydrogenation reactor of this utility model;

[0018] Figure 3 This is a schematic diagram of the protruding rod and scraper ring of this utility model;

[0019] Figure 4 This is a schematic diagram of the rubber sealing ring of this utility model;

[0020] Figure 5 This is a schematic diagram of the insertion rod of this utility model.

[0021] In the diagram: 1. Hydrogenation reactor; 2. Feed port; 3. Sealing cover A; 4. Component plate; 5. Drive cylinder; 6. Sealing cover B; 7. Protruding rod; 8. Scraper ring; 9. Frame; 10. Round hole; 11. Fixing plate; 12. Sliding rod; 13. Linkage plate; 14. Connecting rod; 15. Notch; 16. Rubber sealing ring; 17. Restriction cover; 18. Return spring; 19. Round cover; 20. Insert rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 A leak-proof fixed-bed hydrogenation reactor device includes a hydrogenation reactor 1, a feed inlet 2 for feeding or loading material fixedly provided on the top of the hydrogenation reactor 1, a sealing cover A3 fixedly provided at one end of the hydrogenation reactor 1, a sealing cover B6 slidably installed at the other end of the hydrogenation reactor 1, a component plate 4 fixedly installed on the outer side of the sealing cover A3, a drive cylinder 5 fixedly installed on the top of the component plate 4, and fixed plates 11 fixedly connected to both outer walls of the hydrogenation reactor 1, with sliding rods 12 slidably installed on both sets of fixed plates 11, and further includes:

[0024] The scraping and cleaning assembly is installed inside the hydrogenation reactor 1 and is used to scrape off the residual substances on the inner wall of the hydrogenation reactor 1.

[0025] The scraping and cleaning assembly includes a protruding rod 7, a scraper ring 8, and a retainer 9. The piston rod on the drive cylinder 5 slides into the hydrogenation reactor 1. Four sets of retainers 9 arranged in a cross shape are fixed to the piston rod corresponding to the outer wall of the hydrogenation reactor 1. A scraper ring 8 for scraping off residual material on the inner wall of the hydrogenation reactor 1 is slidably installed on the inner wall of the hydrogenation reactor 1. The end of the piston rod is fixed to the protruding rod 7. The ends of the four sets of retainers 9 opposite to the piston rod are fixed to the inner wall of the scraper ring 8.

[0026] The scraper ring 8 is circular, and its outer wall is tightly fitted to the inner wall of the hydrogenation reactor 1.

[0027] The outer wall of the sealing cap B6 has an annular groove 15 near the inner side, and a rubber sealing ring 16 for sealing is fitted on the outer wall of the groove 15.

[0028] A linkage plate 13 is fixedly connected between the ends of the two sets of sliding rods 12 and the outer side of the sealing cover B6. A connecting rod 14 is fixedly connected to the middle position on one side of the linkage plate 13. The end of the connecting rod 14 away from the linkage plate 13 is fixedly connected to the center position on one side of the sealing cover B6.

[0029] Two sets of sliding rods 12 extend out of the two sets of fixed plates 11 from one end away from the linkage plate 13 and are fitted with limiting covers 17. A return spring 18 is fitted between the outer wall of the sliding rod 12 and the fixed plate 11 and the limiting cover 17.

[0030] Two sets of fixing plates 11 are slidably mounted on the top of the insert rods 20. The top of the insert rods 20 is fitted with a round cover 19. The top outer wall of the sliding rod 12 is provided with a round hole 10 that matches the insert rod 20 at the middle position. The ends of the two sets of insert rods 20 are slidably inserted into the two sets of round holes 10 respectively.

[0031] Structural Description: Hydrogenation Reactor 1: The main structure of the overall equipment, used to support the reaction process and provide a stable spatial environment for the hydrogenation reaction;

[0032] Feed port 2: Fixed at the top of hydrogenation reactor 1, used to realize material feeding or loading operations, facilitating the entry and exit of materials;

[0033] Sealing cap A3: Fixed at one end of hydrogenation reactor 1 to seal that end of the reactor and prevent leakage of internal reaction gases or materials;

[0034] Component plate 4: It is fixedly installed on the outside of the sealing cover A3 and can be used as a support platform for installing other components, which facilitates the integration of related functional components;

[0035] Drive cylinder 5: Fixedly installed on the top of component plate 4, its piston rod can extend and retract to provide power source for scraping and cleaning component;

[0036] Sealing cover B6: It is slidably installed at the other end of the hydrogenation reactor 1 and can be opened or closed when needed to achieve sealing control at both ends of the reactor. It also facilitates internal cleaning and maintenance operations. The outer wall of the sealing cover B6 has an annular notch 15 near the inner side. The outer wall of the notch 15 is fitted with a rubber sealing ring 16 for sealing to enhance the sealing effect.

[0037] Protruding rod 7: It is fixed to the end of the piston rod of the drive cylinder 5 and moves with the extension and retraction of the piston rod, participating in the work as part of the scraping and cleaning assembly;

[0038] Scraper ring 8: It is circular and is slidably installed on the inner wall of hydrogenation reactor 1. Its outer wall is in close contact with the inner wall of hydrogenation reactor 1. It is used to scrape off the residual substances on the inner wall of hydrogenation reactor 1 to ensure the cleanliness of the reactor interior.

[0039] The four sets of fixed frames 9 are arranged in a cross shape and are fixed to the outer wall of the hydrogenation reactor 1 corresponding to the piston rod of the drive cylinder 5. The ends of the four sets of fixed frames 9 that are away from the piston rod are fixed to the inner wall of the scraper ring 8. The movement of the piston rod drives the scraper ring 8 to perform scraping action.

[0040] Round hole 10: It is opened at the middle position of the top outer wall of the two sets of sliding rods 12, and is adapted to the insertion rod 20 to fix the position of the sliding rod 12;

[0041] Fixed plates 11: There are two sets, which are fixed to the outer walls of both sides of the hydrogenation reactor 1 respectively, providing sliding support for the sliding rod 12;

[0042] Sliding rod 12: There are two sets, which are slidably installed on two sets of fixed plates 11 respectively, and realize linkage control through connection with related components;

[0043] Linkage plate 13: It is fixed between the ends of the two sets of sliding rods 12 and corresponds to the outer side of the sealing cover B6. It is used to link the movement of the two sets of sliding rods 12 to achieve synchronous action.

[0044] Connecting rod 14: It is fixed to the middle position on one side of the linkage plate 13, and its end opposite to the linkage plate 13 is fixed to the center position on one side of the sealing cover B6. The movement of the linkage plate 13 drives the sealing cover B6 to slide.

[0045] Notch 15: Opened on the outer wall of the sealing cover B6 near the inner side, for installing the rubber sealing ring 16 to enhance the sealing performance;

[0046] Rubber sealing ring 16: It is fitted onto the notch 15 on the outer wall of the sealing cover B6 to seal the connection between the sealing cover B6 and the hydrogenation reactor 1 to prevent gas leakage.

[0047] Limiting cover 17: It is sleeved on one end of the two sets of sliding rods 12 away from the linkage plate 13, and moves as the sliding rods 12 slide, playing a limiting and guiding role;

[0048] Return spring 18: It is sleeved on the outer wall of the sliding rod 12 between the fixed plate 11 and the limiting cover 17. When the limiting cover 17 moves, the return spring 18 is squeezed and deformed, and the limiting cover 17 drives the sliding rod 12 to slide to the initial position through its own rebound force.

[0049] Round cap 19: Sleeve over the top of the two sets of insert rods 20, providing some protection and fixation for the insert rods 20;

[0050] Insert rods 20: Two sets are provided, slidably mounted on the top of the two sets of fixing plates 11. The ends of the two sets of insert rods 20 are slidably inserted into the two sets of round holes 10, respectively, to fix the position of the sliding rod 12 and prevent the sealing cover B6 from being squeezed out due to too much liquid in the hydrogenation reactor 1. When it is necessary to move the sliding rod 12, the two sets of insert rods 20 can be pulled out from the two sets of round holes 10.

[0051] Working principle: When it is necessary to scrape off the residual material on the inner wall of the hydrogenation reactor 1, the material inside the hydrogenation reactor 1 is first emptied. Then, the two sets of round covers 19 are pulled upward on the two sets of fixed plates 11, so that the bottom ends of the two sets of insert rods 20 are respectively disengaged from the two sets of round holes 10. Next, the drive cylinder 5 is started, and the piston rod on the drive cylinder 5 extends into the hydrogenation reactor 1. The piston rod slides on the sealing cover A3 and pushes the four sets of fixed frames 9. The scraping ring 8 scrapes off the residual material on the inner wall of the hydrogenation reactor 1 through the movement of the four sets of fixed frames 9. When the protruding rod 7 slides to fit against the inner side of the sealing cover B6, the sealing cover B6 is squeezed and pushes the linkage plate 13 outward through the connecting rod 14. The two sets of sliding rods 12 are pulled by the linkage plate 13 and slide on the two sets of fixed plates 11 respectively. The two sets of limiting covers 17 slide along with the sliding rods 12. The sliding action compresses the return spring 18, causing it to deform and shorten. It then disengages from the end of the hydrogenation reactor 1 through the sealing cover B6, allowing the scraper ring 8 to discharge residual substances from the hydrogenation reactor 1 and to perform manual cleaning. After cleaning, the piston rod on the drive cylinder 5 retracts, and the two sets of return springs 18, through their own rebound force, cause the limiting cover 17 to slide towards the fixed plate 11, resealing the end of the hydrogenation reactor 1 with the sealing cover B6. The rubber sealing ring 16 enhances the sealing effect of the sealing cover B6. The two sets of insert rods 20 are then reinserted into the two sets of round holes 10, fixing the position of the two sets of sliding rods 12 to prevent the sealing cover B6 from being squeezed out due to excessive liquid in the hydrogenation reactor 1.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof fixed-bed hydrogenation reactor device, comprising a hydrogenation reactor (1), wherein a feed inlet (2) for discharging or loading is fixedly provided at the top of the hydrogenation reactor (1), characterized in that: One end of the hydrogenation reactor (1) is fixedly provided with a sealing cover A (3), and the other end of the hydrogenation reactor (1) is slidably provided with a sealing cover B (6). A component plate (4) is fixedly installed on the outside of the sealing cover A (3), and a driving cylinder (5) is fixedly installed on the top of the component plate (4). Fixed plates (11) are fixedly connected to both outer walls of the hydrogenation reactor (1), and sliding rods (12) are slidably installed on both sets of fixed plates (11). The reactor also includes: The scraping and cleaning assembly is installed inside the hydrogenation reactor (1) and is used to scrape off the residual substances on the inner wall of the hydrogenation reactor (1). The scraping and cleaning assembly includes a protruding rod (7), a scraping ring (8), and a fixing frame (9). The piston rod on the driving cylinder (5) slides into the hydrogenation reactor (1). Four sets of fixing frames (9) are fixedly connected to the outer wall of the hydrogenation reactor (1) in a cross shape. The inner wall of the hydrogenation reactor (1) is slidably installed with a scraping ring (8) for scraping off the residual substances on the inner wall of the hydrogenation reactor (1). The end of the piston rod is fixedly connected with a protruding rod (7). The ends of the four sets of fixing frames (9) away from the piston rod are all fixedly connected to the inner wall of the scraping ring (8). The scraping ring (8) is circular and the outer wall of the scraping ring (8) is tightly attached to the inner wall of the hydrogenation reactor (1).

2. The leak-proof fixed-bed hydrogenation reactor equipment according to claim 1, characterized in that: The outer wall of the sealing cap B (6) is provided with an annular groove (15) near the inner side, and a rubber sealing ring (16) for sealing is fitted on the outer wall of the groove (15).

3. The leak-proof fixed-bed hydrogenation reactor equipment according to claim 1, characterized in that: A linkage plate (13) is fixedly connected between the ends of the two sets of sliding rods (12) to the outer side of the sealing cover B (6). A connecting rod (14) is fixedly connected to the middle position on one side of the linkage plate (13). The end of the connecting rod (14) away from the linkage plate (13) is fixedly connected to the center position on one side of the sealing cover B (6).

4. The leak-proof fixed-bed hydrogenation reactor equipment according to claim 3, characterized in that: The two sets of sliding rods (12) extend out of the two sets of fixed plates (11) respectively from one end away from the linkage plate (13) and are fitted with a limiting cover (17). A return spring (18) is fitted between the outer wall of the sliding rod (12) and the fixed plate (11) and the limiting cover (17).

5. The leak-proof fixed-bed hydrogenation reactor equipment according to claim 4, characterized in that: The top of the two sets of fixing plates (11) are slidably mounted with insert rods (20), and the top of the insert rods (20) is fitted with round caps (19). The top outer wall of the sliding rod (12) is provided with round holes (10) that are adapted to the insert rods (20) at the middle position. The ends of the two sets of insert rods (20) are slidably inserted into the two sets of round holes (10) respectively.

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