A pipe sealing device for a negative pressure chamber in a hydrogenation reactor
By designing a pipeline sealing device in the negative pressure chamber of the hydrogenation reactor, which includes components such as a fixed column, a chute, a spring, a fixed plate, and a collar, the problem of poor pipeline sealing in the negative pressure chamber was solved. This achieved reliable sealing under negative pressure and simplified operation, thereby improving equipment safety and operational efficiency.
Patent Information
- Application Number
- CN202521496936.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-30
- Estimated Expiration
- 2035-07-17
AI Technical Summary
The existing hydrogenation reactor has poor sealing of the negative pressure chamber pipeline, which may cause outside air to be drawn back into the reactor, forming an explosive mixture and endangering equipment safety.
A pipe sealing device was designed, comprising a fixed column, a sliding groove, a spring, a fixed plate, a collar, a spring groove, a fixed block, a sliding roller, a clamping plate, a groove, a sealing groove, and a rubber sealing ring. The cooperation of the clamping plate and the rubber sealing ring ensures reliable sealing of the pipe under negative pressure.
It effectively prevents material leakage from pipeline connections, improves the operational safety and stability of the hydrogenation reactor, simplifies the pipeline installation and disassembly process, and improves operational efficiency.
Smart Images
Figure CN224433799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydrogenation reactor technology, specifically to a pipe sealing device for a negative pressure chamber in a hydrogenation reactor. Background Technology
[0002] Circulating hydrogenation equipment is a type of equipment widely used in chemical, petroleum refining and other fields. It is mainly used to process raw materials through hydrogenation reactions in order to improve their quality, modify their properties or produce specific products.
[0003] The negative pressure chamber should maintain a certain negative pressure state. If the pipeline is not properly sealed, outside air may be drawn back into the reactor. The oxygen in the air will mix with hydrogen to form an explosive mixture. At the same time, oxygen may participate in the reaction, leading to catalyst deactivation or runaway reaction temperature, or even violent combustion. In view of this, a pipeline sealing device for the negative pressure chamber of a hydrogenation reactor is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a pipe sealing device for a negative pressure chamber in a hydrogenation reactor, which solves the problem of poor pipe sealing in the negative pressure chamber.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a pipe sealing device for a negative pressure chamber of a hydrogenation reactor, comprising a batch reactor, wherein a conveying pipe is provided on the upper surface of the batch reactor, and an electric shut-off valve is provided on the conveying pipe;
[0008] The batch reactor is equipped with a pipe sealing mechanism, which includes a fixed column, a sliding groove, a first spring, a fixed plate, a collar, a spring groove, a second spring, a fixed block, a sliding roller, a clamping plate, a groove, a sealing groove, and a rubber sealing ring.
[0009] Preferably, the fixing column is fixedly installed on the upper surface of the top plate of the batch reactor, and the sliding groove is formed on the outer surface of the fixing column;
[0010] Both spring grooves are located on the inner wall of the slide.
[0011] Preferably, the groove is formed on the upper surface of the fixed column, and the two sealing grooves are formed in the inner wall of the groove.
[0012] Preferably, both first springs are fixedly installed in the inner wall of the slide groove, and two fixing plates are respectively fixedly installed at the lower ends of the two first springs, with the opposite surfaces of the two fixing plates being inclined.
[0013] The collar is fixedly sleeved on the outer surface of the two fixed plates, and the collar is slidably sleeved in the inner wall of the groove.
[0014] Preferably, the two second springs are respectively fixedly installed in the inner walls of the two spring grooves, and the two fixing blocks are respectively fixedly installed at opposite ends of the two second springs, with the upper surfaces of the two fixing blocks being inclined.
[0015] Preferably, the two sliding rollers are respectively fixedly installed on the opposite sides of the two fixed blocks, the two sliding rollers slide through the inner wall of the groove, and the two clamping plates are respectively fixedly installed on the opposite ends of the two sliding rollers.
[0016] Preferably, the rubber sealing ring is fixedly installed in the inner wall of the conveying pipeline.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, this utility model provides a pipe sealing device for a negative pressure chamber in a hydrogenation reactor, which has the following advantages:
[0019] 1. The pipeline sealing device of the hydrogenation reactor uses a negative pressure chamber. Under the action of the fixed plate, fixed block and other structures, the clamping plate applies a counter-pushing force to the conveying pipeline to ensure the pipeline is stable. At the same time, the rubber sealing ring on the inner wall of the pipeline is precisely aligned with the sealing groove. The compression of the clamping plate makes the rubber sealing ring fully fill the gap and form a tight sealing layer. This design effectively prevents material from leaking from the pipeline connection. Even in a negative pressure environment, it can ensure the reliability of the seal and improve the safety and stability of the hydrogenation reactor operation.
[0020] 2. The pipeline sealing device of the hydrogenation reactor with negative pressure chamber is installed. After the thrust on the collar is removed, the first spring returns to its original position and pushes the fixing plate. The inclined structure is used to clamp the pipeline. The whole process does not require complicated tools. A single person can quickly complete the installation and disassembly of the pipeline, which greatly improves the operating efficiency and facilitates equipment maintenance and repair. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the pipe sealing device for a negative pressure chamber in a hydrogenation reactor according to the present invention.
[0022] Figure 2 This is a schematic diagram of the structure of the reactor with added vessel in this utility model;
[0023] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;
[0024] Figure 4 This is a schematic diagram of the top plate structure of the reactor of this utility model;
[0025] Figure 5This utility model Figure 4 Enlarged view of the structure at point B in the middle.
[0026] In the diagram: 1. Stirred reactor; 2. Conveying pipeline; 3. Electric shut-off valve; 4. Fixed column; 5. Slide groove; 6. First spring; 7. Fixed plate; 8. Collar; 9. Spring groove; 10. Second spring; 11. Fixed block; 12. Sliding roller; 13. Clamping plate; 14. Groove; 15. Sealing groove; 16. Rubber sealing ring. Detailed Implementation
[0027] 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.
[0028] Please see Figure 1-5 This utility model provides a new technical solution: a pipeline sealing device for a negative pressure chamber of a hydrogenation reactor, including a batch reactor 1, a conveying pipeline 2 provided on the upper surface of the batch reactor 1, and an electric shut-off valve 3 provided on the conveying pipeline 2.
[0029] The batch reactor 1 is equipped with a pipe sealing mechanism, which includes a fixed column 4, a sliding groove 5, a first spring 6, a fixed plate 7, a collar 8, a spring groove 9, a second spring 10, a fixed block 11, a sliding roller 12, a clamping plate 13, a groove 14, a sealing groove 15, and a rubber sealing ring 16.
[0030] Furthermore, the fixed column 4 is fixedly installed on the upper surface of the top plate of the batch reactor 1, and the sliding groove 5 is opened on the outer surface of the fixed column 4;
[0031] Both spring grooves 9 are formed on the inner wall of the slide groove 5.
[0032] Furthermore, the groove 14 is formed on the upper surface of the fixed post 4, and two sealing grooves 15 are formed in the inner wall of the groove 14.
[0033] Furthermore, both first springs 6 are fixedly installed in the inner wall of the slide groove 5, and two fixing plates 7 are respectively fixedly installed at the lower ends of the two first springs 6, with the opposite surfaces of the two fixing plates 7 being inclined.
[0034] Among them, the collar 8 is fixedly sleeved on the outer surface of the two fixed plates 7, and the collar 8 is slidably sleeved in the inner wall of the groove 5.
[0035] Furthermore, two second springs 10 are respectively fixedly installed in the inner walls of two spring grooves 9, and two fixing blocks 11 are respectively fixedly installed at opposite ends of the two second springs 10. The upper surfaces of the two fixing blocks 11 are both inclined.
[0036] Furthermore, two sliding rollers 12 are respectively fixedly installed on the opposite sides of two fixed blocks 11, and the two sliding rollers 12 slide through the inner wall of the groove 14. Two clamping plates 13 are respectively fixedly installed on the opposite ends of the two sliding rollers 12.
[0037] Furthermore, two rubber sealing rings 16 are fixedly installed in the inner wall of the conveying pipe 2;
[0038] When the pipeline sealing device of the negative pressure chamber of the hydrogenation reactor is in use, by applying an upward thrust to the collar 8, the collar 8 drives the fixed plate 7 fixedly sleeved on the inner surface to move upward. At this time, the fixed plate 7 no longer applies pressure to the fixed block 11, and the second spring 10 is no longer under force. At this time, the second spring 10 expands and applies an opposite thrust to the fixed block 11 fixedly installed on the opposite side. The fixed block 11 drives the two sliding rollers 12 fixedly installed on the opposite side to move in opposite directions. The two sliding rollers 12 drive the two clamping plates 13 fixedly installed on the opposite side to move in opposite directions. At this time, the conveying pipe 2 is inserted into the inner wall of the groove 14, and the two rubber sealing rings 16 fixedly installed on the inner wall of the conveying pipe 2 are in contact with the two sealing grooves 14. Correspondingly, no upward thrust is applied to the collar 8 at this time. At this time, the two first springs 6 expand and apply downward thrust to the fixed plate 7 fixedly installed at the lower end. The inclined surface of the fixed plate 7 hits the inclined surface of the fixed block 11. The fixed plate 7 applies a relative thrust to the fixed block 11. The fixed block 11 applies a relative thrust to the sliding roller 12 fixedly installed on the opposite surface. The sliding roller 12 applies a relative thrust to the two clamping plates 13 fixedly installed on the opposite surface. The two clamping plates 13 apply a relative thrust to the conveying pipe 2. At this time, the rubber sealing ring 16 fixedly installed on the inner wall of the conveying pipe 2 fills into the sealing groove 15, and the clamping plates 13 squeeze the rubber sealing ring to fill the gap and prevent the material from leaking from the pipe connection.
[0039] The hydrogenation reactor uses a negative pressure chamber pipe sealing device. Under the action of the fixed plate 7, fixed block 11 and other structures, the clamping plate 13 applies a counter-pushing force to the conveying pipe 2 to ensure the stability of the pipe. At the same time, the rubber sealing ring 16 on the inner wall of the pipe corresponds precisely to the sealing groove 15. The compression of the clamping plate 13 makes the rubber sealing ring fully fill the gap, forming a tight sealing layer. This design effectively prevents material from leaking from the pipe connection. Even in a negative pressure environment, it can ensure the reliability of the seal, improving the safety and stability of the hydrogenation reactor operation. After the installation of the negative pressure chamber pipe sealing device of the hydrogenation reactor, the thrust on the collar 8 is removed, the first spring 6 returns to its original position and pushes the fixed plate 7. The inclined structure makes the clamping plate 13 clamp the pipe. The whole process does not require complicated tools. A single person can quickly complete the installation and disassembly of the pipe, which greatly improves the operating efficiency and facilitates equipment maintenance and repair.
[0040] Structural Description:
[0041] Stirred reactor 1: As the core of the entire unit, it provides a site for the hydrogenation reaction, withstands the pressure and temperature changes during the reaction process, and its top plate is used to install other components to ensure that the reaction can be carried out in a stable environment.
[0042] Transport pipe 2: Connects to the batch reactor 1 and undertakes the task of material transport, transporting the materials required for the reaction into the batch reactor 1, or transporting the products after the reaction out. It is the channel for materials to enter and exit the reactor.
[0043] Electric shut-off valve 3: Installed on the conveying pipeline 2, it can be electrically controlled to open and close the pipeline, precisely control the conveying of materials, and ensure that the pipeline can be cut off or connected when needed to prevent material leakage or accidental flow.
[0044] Fixed column 4: It is fixedly installed on the top surface of the top plate of the batch reactor 1 to provide a mounting base for other components. The groove 5 on its outer surface and the groove 14 on its upper surface are important structures for the subsequent components to function.
[0045] Slide groove 5: It is formed on the outer surface of the fixed column 4 to provide a sliding track for components such as collar 8 and fixed plate 7, so that these components can move along the slide groove 5 to realize position adjustment and action during the sealing process.
[0046] First spring 6: Fixedly installed on the inner wall of the slide groove 5, it provides an upward elastic force to the fixed plate 7 through its own elastic deformation, pushing the fixed plate 7 and the collar 8 to move and participate in the sealing action.
[0047] Fixed plate 7: Fixed to the lower end of the first spring 6, with the opposite surface set at an angle, cooperating with the angle of the fixed block 11. Under the action of the first spring 6, the fixed block 11 is pushed to move through the interaction of the angles.
[0048] The collar 8 is fixedly sleeved on the outer surface of the two fixed plates 7 and slidably sleeved on the inner wall of the slide groove 5. It serves to connect and guide the movement of the fixed plates 7, ensuring that the fixed plates 7 slide stably within the slide groove 5.
[0049] Spring groove 9: It is formed in the inner wall of the slide groove 5 and is used to install the second spring 10 and the fixing block 11, providing them with installation space and range of motion so that they can move in and out of the spring groove 9.
[0050] The second spring 10 is installed on the inner wall of the spring groove 9. Through the action of elastic force, it provides the power for the fixed block 11 to reset, so that the fixed block 11 returns to the initial position after the sealing action is completed.
[0051] Fixed block 11: Installed on the opposite end of the second spring 10, with an inclined upper surface that cooperates with the inclined surface of the fixed plate 7. It moves under the push of the fixed plate 7, thereby driving the sliding roller 12 and the clamping plate 13 to move.
[0052] Sliding roller 12: Fixed on the opposite side of the fixed block 11, it slides through the inner wall of the groove 14, and plays the role of transmitting force and reducing friction, converting the movement of the fixed block 11 into the action of the clamping plate 13.
[0053] Clamping plate 13: Fixed to the opposite end of sliding roller 12, clamping conveying pipe 2 under the drive of fixing block 11 and sliding roller 12, thereby fixing and sealing the pipe and preventing material leakage.
[0054] Groove 14: It is formed on the upper surface of the fixed column 4 to provide moving space for components such as sliding roller 12 and clamping plate 13, so that they can perform clamping and loosening actions in the groove 14.
[0055] Sealing groove 15: It is formed in the inner wall of the groove 14 and is used to install the rubber sealing ring 16. It cooperates with the rubber sealing ring 16 to form a sealing structure and enhance the sealing effect on the conveying pipeline 2.
[0056] Rubber sealing ring 16: It is fixedly installed on the inner wall of the conveying pipe 2 and fits tightly with the sealing groove 15. It uses the elasticity of rubber to fill the gaps and prevent material from leaking from the pipe connection, thus achieving good sealing performance.
[0057] 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 pipe sealing device for a negative pressure chamber in a hydrogenation reactor, comprising a batch reactor (1), characterized in that: The upper surface of the batch reactor (1) is provided with a conveying pipe (2), and an electric shut-off valve (3) is provided on the conveying pipe (2). The batch reactor (1) is equipped with a pipe sealing mechanism, which includes a fixed column (4), a sliding groove (5), a first spring (6), a fixed plate (7), a collar (8), a spring groove (9), a second spring (10), a fixed block (11), a sliding roller (12), a clamping plate (13), a groove (14), a sealing groove (15), and a rubber sealing ring (16).
2. The pipe sealing device for a negative pressure chamber in a hydrogenation reactor according to claim 1, characterized in that: The fixed column (4) is fixedly installed on the upper surface of the top plate of the batch reactor (1), and the chute (5) is opened on the outer surface of the fixed column (4); Both spring grooves (9) are located on the inner wall of the slide groove (5).
3. The pipe sealing device for a negative pressure chamber in a hydrogenation reactor according to claim 1, characterized in that: The groove (14) is formed on the upper surface of the fixed column (4), and two sealing grooves (15) are formed in the inner wall of the groove (14).
4. The pipe sealing device for a negative pressure chamber in a hydrogenation reactor according to claim 1, characterized in that: Both first springs (6) are fixedly installed in the inner wall of the slide groove (5), and two fixing plates (7) are fixedly installed at the lower ends of the two first springs (6) respectively. The opposite surfaces of the two fixing plates (7) are both set as inclined surfaces. Among them, the collar (8) is fixedly sleeved on the outer surface of the two fixed plates (7), and the collar (8) is slidably sleeved in the inner wall of the groove (5).
5. The pipe sealing device for a negative pressure chamber in a hydrogenation reactor according to claim 1, characterized in that: The two second springs (10) are respectively fixedly installed in the inner walls of the two spring grooves (9), and the two fixing blocks (11) are respectively fixedly installed at opposite ends of the two second springs (10). The upper surfaces of the two fixing blocks (11) are both set as inclined surfaces.
6. The pipe sealing device for a negative pressure chamber of a hydrogenation reactor according to claim 1, characterized in that: The two sliding rollers (12) are respectively fixedly installed on the opposite sides of the two fixed blocks (11), and the two sliding rollers (12) slide through the inner wall of the groove (14). The two clamping plates (13) are respectively fixedly installed on the opposite ends of the two sliding rollers (12).
7. The pipe sealing device for a negative pressure chamber in a hydrogenation reactor according to claim 1, characterized in that: The rubber sealing ring (16) is fixedly installed in the inner wall of the conveying pipe (2).