Easily-cleaned fixed bed hydrogenation reactor equipment

Abstract

The utility model relates to the technical field of petroleum refining and chemical equipment, and discloses easy-to-clean fixed bed hydrogenation reactor equipment which comprises a supporting frame, a lower half shell is fixedly connected to the top of the supporting frame, the bottom of the lower half shell extends to the bottom of the supporting frame, a flange is welded to the top of the lower half shell, and a fixed bed is arranged on the flange. A sealing ring is arranged at the top of the flange, an upper half shell is arranged at the top of the flange, a second flange is welded to the bottom of the upper half shell, and the bottom of the second flange and the top of the sealing ring are in tight press fit. The functions of rapid locking and unlocking, efficient sealing and leakage prevention and convenient cleaning and maintenance of the upper shell and the lower shell of the reactor are achieved, due to the unique locking mechanism and sealing design, the structural stability and operation convenience of equipment are improved, the medium leakage risk and maintenance cost are remarkably reduced, and the service life of the equipment is prolonged. Safer and more efficient equipment support is provided for petroleum refining and chemical production, and the device is more practical.

Description

Technical Field

[0001] This utility model relates to the field of petroleum refining and chemical equipment technology, specifically to an easy-to-clean fixed-bed hydrogenation reactor. Background Technology

[0002] Fixed-bed hydrotreating reactors, as one of the core pieces of equipment in the petrochemical industry, utilize hydrogen in the presence of a catalyst to react with impurities such as sulfur, nitrogen, and oxygen in the feedstock, significantly improving oil quality and meeting increasingly stringent environmental regulations. This equipment is widely used in key processes such as reforming, cracking, and hydrorefining in refineries, and is an indispensable technological means to achieve efficient conversion and clean utilization of crude oil. With the continuous growth of global energy demand and increasingly stringent environmental standards, the role of fixed-bed hydrotreating reactors in improving oil quality and reducing pollutant emissions is becoming increasingly prominent. Their stable operation and high efficiency are crucial for ensuring energy security and promoting the development of green chemistry. Therefore, developing a high-efficiency and reliable fixed-bed hydrotreating reactor has become a critical issue that urgently needs to be addressed in the petrochemical industry.

[0003] Traditional fixed-bed hydrogenation reactors have revealed numerous drawbacks in their design and application, severely restricting their performance improvement and long-term stable operation. The primary problem lies in the difficulty of cleaning and maintenance. The complex internal structure of traditional reactors makes it difficult to disassemble key components such as the catalyst bed and distributors, leading to the accumulation of deposits like scale and coke inside the reactor. This not only increases bed pressure drop and reduces reaction efficiency but may also cause catalyst poisoning, deactivation, and shorten catalyst lifespan. Secondly, traditional reactors are deficient in sealing, corrosion resistance, and thermal stability, making it difficult to meet the long-term operational requirements under harsh conditions such as high temperature, high pressure, and strong corrosion, increasing equipment failure rates and maintenance costs. Furthermore, traditional designs often neglect operator safety considerations, such as the lack of effective emergency pressure relief devices and overheat protection mechanisms, posing potential threats to production safety. These technical bottlenecks not only affect the overall performance of fixed-bed hydrogenation reactors but also limit the sustainable development of the petrochemical industry. Therefore, developing an easy-to-clean fixed-bed hydrogenation reactor is particularly urgent. To this end, we propose an easy-to-clean fixed-bed hydrogenation reactor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an easy-to-clean fixed-bed hydrogenation reactor, solving the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an easy-to-clean fixed-bed hydrogenation reactor device, including a support frame, a lower half-shell fixedly connected to the top of the support frame, the bottom of the lower half-shell extending to the bottom of the support frame, a flange welded to the top of the lower half-shell, a sealing ring provided on the top of the flange, an upper half-shell provided on the top of the flange, a second flange welded to the bottom of the upper half-shell, the bottom of the second flange and the top of the sealing ring being tightly pressed together.

[0006] Preferably, four locking seats are embedded in the top of the flange in a ring and are evenly distributed. A locking post is welded to the top of the second flange. The bottom output end of the locking post extends to the bottom of the second flange. The bottom output end of the locking post is inserted into one end of the inner wall of the locking seat.

[0007] Preferably, a threaded rod is threaded to one end of the inner wall of the locking post, and a compression ball is welded to the bottom of the threaded rod. Three locking balls are placed at equal intervals in a ring at the bottom of the inner wall of the locking post, and three locking holes are opened at equal intervals in a ring on the outer wall of the end of the locking post near the locking balls.

[0008] Preferably, the outer wall of the locking ball is in frictional contact with the inner wall of the locking hole, and the bottom of the squeezing ball is in contact with the top of the locking ball.

[0009] Preferably, a locking chamber is provided at one end of the inner wall of the locking seat, the outer wall of one end of the locking ball is engaged with the inner side wall of the locking chamber, and the top end of the locking ball is engaged with the top of the inner wall of the locking chamber.

[0010] Preferably, the top output end of the threaded rod extends to the top of the locking post, and a handle is fixedly connected to the top output end of the threaded rod.

[0011] Preferably, the top of the second flange is provided with four fixing bolts that are equidistantly distributed in a ring at one end near the locking post, and the bottom output end of the fixing bolts extends to the bottom of the flange.

[0012] Compared with the prior art, this utility model provides an easy-to-clean fixed-bed hydrogenation reactor device, which has the following beneficial effects:

[0013] 1. This easy-to-clean fixed-bed hydrogenation reactor, compared to traditional fixed-bed hydrogenation reactors, achieves rapid and efficient cleaning of the reactor interior through an innovative mechanical structure design. Traditional reactors, due to their complex internal structure and the difficulty in disassembling key components such as the catalyst bed and distributor, result in cumbersome and time-consuming cleaning and maintenance processes, often requiring shutdowns for days or even weeks for deep cleaning. This unit, however, employs a quick-disassembly upper and lower shell design, coupled with a unique locking and unlocking mechanism, allowing operators to quickly start and stop the reactor and easily perform thorough internal cleaning. This design not only significantly reduces downtime and improves production efficiency but also reduces economic losses caused by prolonged downtime. Furthermore, the more thorough cleaning effectively prevents the accumulation of deposits such as scale and coke inside the reactor, extending the catalyst's lifespan and further reducing operating costs.

[0014] 2. This easy-to-clean fixed-bed hydrogenation reactor utilizes a clever combination of a threaded rod, extrusion ball, locking ball, and locking hole to achieve rapid locking and unlocking of the upper and lower shells. The handle design allows operators to easily rotate the threaded rod, thereby controlling the locking and unlocking process, greatly improving operational convenience and efficiency. This design not only simplifies maintenance procedures but also reduces the workload of operators.

[0015] 3. This easy-to-clean fixed-bed hydrogenation reactor is designed with ease of cleaning in mind. A quick-locking and unlocking mechanism allows operators to easily open the reactor for internal cleaning and maintenance. This design reduces downtime, improves production efficiency, and lowers maintenance costs. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the locking post of this utility model;

[0019] Figure 4 This is a schematic diagram of the locking pin of this utility model.

[0020] In the diagram: 1. Support frame; 2. Lower shell; 3. Flange; 4. Sealing ring; 5. Upper shell; 6. Second flange; 7. Locking seat; 8. Locking pin; 9. Threaded rod; 10. Extrusion ball; 11. Locking ball; 12. Locking hole; 13. Locking chamber; 14. Handle; 15. Fixing bolt. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 An easy-to-clean fixed-bed hydrogenation reactor includes a support frame 1, a lower shell 2 fixedly connected to the top of the support frame 1, the bottom of the lower shell 2 extending to the bottom of the support frame 1, a flange 3 welded to the top of the lower shell 2, a sealing ring 4 provided on the top of the flange 3, an upper shell 5 provided on the top of the flange 3, a second flange 6 welded to the bottom of the upper shell 5, the bottom of the second flange 6 and the top of the sealing ring 4 are tightly pressed together, ensuring the sealing between the upper and lower shells of the reactor, preventing media leakage during the reaction process, and ensuring the safety and efficiency of the reaction.

[0023] Furthermore, four locking seats 7 are embedded in the top of the flange 3 in a ring and are evenly distributed. A locking pin 8 is welded to the top of the second flange 6. The bottom output end of the locking pin 8 extends to the bottom of the second flange 6. The bottom output end of the locking pin 8 is plugged into one end of the inner wall of the locking seat 7. The plugging and fitting design of the locking seat 7 and the locking pin 8 enables the upper and lower shells to be accurately positioned during assembly, improving the accuracy and efficiency of assembly, and enhancing the structural stability of the shell.

[0024] Furthermore, a threaded rod 9 is threadedly connected to one end of the inner wall of the locking pin 8. A compression ball 10 is welded to the bottom of the threaded rod 9. Three locking balls 11 are placed at equal intervals in a ring on the bottom of the inner wall of the locking pin 8. Three locking holes 12 are formed at equal intervals in a ring on the outer wall of the end of the locking pin 8 near the locking balls 11. The threaded connection between the threaded rod 9 and the locking pin 8 allows the threaded rod 9 to rotate and move up and down, thereby compressing the locking balls 11 through the compression balls 10, achieving the function of locking and unlocking. The cooperation between the locking balls 11 and the locking holes 12 further enhances the stability of the locking.

[0025] Furthermore, the outer wall of the locking ball 11 is in frictional contact with the inner wall of the locking hole 12, and the bottom of the extrusion ball 10 is in contact with the top of the locking ball 11, so that the locking ball 11 can be tightly inserted into the locking hole 12 when it is extruded, thereby ensuring the secure locking of the upper and lower housings. At the same time, the contact between the extrusion ball 10 and the locking ball 11 realizes the transmission of force, so that the rotation of the threaded rod 9 can be converted into the radial movement of the locking ball 11.

[0026] Furthermore, a locking chamber 13 is provided at one end of the inner wall of the locking seat 7. The outer wall of one end of the locking ball 11 is engaged with the inner wall of the locking chamber 13, and the top end of the locking ball 11 is engaged with the top of the inner wall of the locking chamber 13. The design of the locking chamber 13 provides a stable engagement space for the locking ball 11, so that the locking ball 11 can be accurately engaged in the locking chamber 13 when it is squeezed, thereby enhancing the reliability of locking. At the same time, the sliding engagement ensures the smoothness of the locking ball 11 during movement.

[0027] Furthermore, the top output end of the threaded rod 9 extends to the top of the locking post 8, and a handle 14 is fixedly connected to the top output end of the threaded rod 9. The design of the handle 14 allows the operator to easily rotate the threaded rod 9, thereby realizing the locking and unlocking functions. This design improves the convenience and efficiency of operation.

[0028] Furthermore, the top of the second flange 6 is provided with four equidistantly distributed fixing bolts 15 in a ring at one end near the locking post 8. The bottom output end of the fixing bolts 15 extends to the bottom of the flange 3. The design of the fixing bolts 15 further enhances the connection stability between the upper and lower shells and prevents the shells from separating due to vibration or pressure changes during the reaction process.

[0029] Instructions for use

[0030] Structural Description: 1. Support Frame 1: Supports the entire reactor equipment and provides a fixed foundation for the lower shell 2. The positional relationship is that the lower shell 2 is fixedly connected to its top.

[0031] 2. Lower shell 2: One of the main parts of the reactor, which carries the reactants. Its position is such that a flange 3 is welded to the top and extends to the bottom of the support frame 1.

[0032] 3. Flange 3: Connects the lower half-shell 2 and the upper half-shell 5, provides a sealing surface, and is located at the top of the lower half-shell 2, with a sealing ring 4 at the top;

[0033] 4. Sealing ring 4: Ensures the sealing between the upper and lower shells and prevents media leakage. It is positioned on the top of flange 3 and is tightly pressed against the bottom of the second flange 6.

[0034] 5. Upper shell 5: This constitutes another part of the reactor and together with the lower shell 2, forms the reaction space. The positional relationship is that a second flange 6 is welded to the bottom and is located on top of flange 3.

[0035] 6. Second flange 6: It mates with flange 3 to achieve the connection and sealing of the upper and lower shells. The positional relationship is that it is welded to the bottom of the upper shell 5, and the bottom is tightly pressed against the top of the sealing ring 4.

[0036] 7. Locking seat 7: Provides a locking mechanism to ensure the stability of the upper and lower housings after assembly. It is positioned on the top of flange 3 and is distributed in a ring at equal intervals.

[0037] 8. Locking pin 8: It cooperates with the locking seat 7 to lock the upper and lower shells. The positional relationship is that it is welded to the top of the second flange 6, and the bottom output end is inserted into one end of the inner wall of the locking seat 7.

[0038] 9. Threaded rod 9: Locking and unlocking functions are achieved by rotation. The positional relationship is that it is threadedly connected to one end of the inner wall of the locking post 8, and the top output end extends to the top of the locking post 8 and is fixedly connected to the handle 14.

[0039] 10. Extrusion ball 10: transmits the rotational force of the threaded rod 9 and extrudes the locking ball 11 to achieve locking. The positional relationship is that it is welded to the bottom of the threaded rod 9 and contacts the top of the locking ball 11.

[0040] 11. Locking ball 11: Under the action of compression, it is inserted into the locking hole 12 and the locking chamber 13 to lock the upper and lower shells. The positional relationship is that it is placed at the bottom of the inner wall of the locking column 8, and is distributed in a ring at equal intervals. The outer wall is in frictional contact with the inner wall of the locking hole 12.

[0041] 12. Locking hole 12: It cooperates with the locking ball 11 to realize the locking function. The positional relationship is that it is opened on the outer wall of the locking post 8 near the locking ball 11, and is distributed in a ring at equal intervals.

[0042] 13. Locking chamber 13: Provides a locking space for the locking ball 11 to enhance locking stability. It is located at one end of the inner wall of the locking seat 7 and engages with the outer wall of one end of the locking ball 11.

[0043] 14. Handle 14: Allows the operator to rotate the threaded rod 9 to lock and unlock it. It is fixedly connected to the top output end of the threaded rod 9.

[0044] 15. Fixing bolt 15: Further enhances the connection stability between the upper and lower shells. Its position is set at the top of the second flange 6 near the locking post 8, and is distributed in a ring at equal intervals. The bottom output end extends to the bottom of the flange 3.

[0045] Working principle: First, the lower shell 2 is fixed by the support frame 1. The flange 3 welded to its top and the second flange 6 welded to the bottom of the upper shell 5 are tightly pressed together by the sealing ring 4 to ensure the reactor's airtightness. At this time, four locking seats 7 distributed in a ring at equal intervals are embedded in the top of the flange 3, while the locking pin 8 is welded to the bottom of the second flange 6 and is inserted into one end of the inner wall of the locking seat 7, initially achieving the positioning of the upper and lower shells. Further, by rotating the handle 14, the threaded rod 9 is driven to rotate on the inner wall of the locking pin 8. Since the bottom of the threaded rod 9 is welded with a compression ball 10, as the threaded rod 9 rotates, the compression ball 10 will move downwards, thereby compressing the three locking balls 11 distributed in a ring at equal intervals at the bottom of the inner wall of the locking pin 8. Under the pressure, the locking ball 11 moves outward until its outer wall comes into frictional contact with the inner wall of the locking hole 12 on the outer wall of the locking post 8, and simultaneously engages with the locking chamber 13 at one end of the inner wall of the locking seat 7, thus achieving a secure lock between the upper and lower shells. When cleaning the reactor is required, the handle 14 is rotated in the opposite direction, and the threaded rod 9 drives the compression ball 10 upward, releasing the pressure on the locking ball 11. At this time, the locking ball 11 moves inward under its own elasticity and the sliding action of the inner wall of the locking chamber 13, disengaging from the locking hole 12 and the locking chamber 13, thereby releasing the lock between the upper and lower shells. Subsequently, the upper shell 5 can be easily disassembled for thorough cleaning of the reactor interior. In addition, the fixing bolt 15 further enhances the connection stability of the upper and lower shells, preventing the shells from separating due to pressure or vibration during the reaction process.

[0046] 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. An easy-to-clean fixed-bed hydrogenation reactor device, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the top of the lower half shell (2), the bottom of the lower half shell (2) extends to the bottom of the support frame (1), the top of the lower half shell (2) is welded with a flange (3), the top of the flange (3) is provided with a sealing ring (4), the top of the flange (3) is provided with an upper half shell (5), the bottom of the upper half shell (5) is welded with a second flange (6), the bottom of the second flange (6) and the top of the sealing ring (4) are tightly pressed together.

2. The easy-to-clean fixed-bed hydrogenation reactor equipment according to claim 1, characterized in that: The flange (3) is fitted with four locking seats (7) arranged in a ring at equal intervals. The second flange (6) is welded with a locking post (8). The bottom output end of the locking post (8) extends to the bottom of the second flange (6). The bottom output end of the locking post (8) is inserted into one end of the inner wall of the locking seat (7).

3. The easy-to-clean fixed-bed hydrogenation reactor equipment according to claim 2, characterized in that: One end of the inner wall of the locking post (8) is threaded with a threaded rod (9), and a compression ball (10) is welded to the bottom of the threaded rod (9). Three locking balls (11) are placed at the bottom of the inner wall of the locking post (8) in a ring. Three locking holes (12) are opened on the outer wall of the locking post (8) near the locking balls (11).

4. The easy-to-clean fixed-bed hydrogenation reactor equipment according to claim 3, characterized in that: The outer wall of the locking ball (11) is in frictional contact with the inner wall of the locking hole (12), and the bottom of the squeezing ball (10) is in contact with the top of the locking ball (11).

5. The easy-to-clean fixed-bed hydrogenation reactor equipment according to claim 3, characterized in that: The locking seat (7) has a locking chamber (13) at one end of its inner wall. The outer wall of one end of the locking ball (11) is engaged with the inner wall of the locking chamber (13). The top end of the locking ball (11) is engaged with the top of the inner wall of the locking chamber (13).

6. The easy-to-clean fixed-bed hydrogenation reactor equipment according to claim 3, characterized in that: The top output end of the threaded rod (9) extends to the top of the locking post (8), and a handle (14) is fixedly connected to the top output end of the threaded rod (9).

7. The easy-to-clean fixed-bed hydrogenation reactor equipment according to claim 2, characterized in that: The second flange (6) has four fixing bolts (15) arranged in a ring at equal intervals at one end near the locking post (8), and the bottom output end of the fixing bolts (15) extends to the bottom of the flange (3).

Images