A high-pressure reactor sealing structure

Abstract

This utility model discloses a high-pressure reactor sealing structure, relating to the field of reactor sealing technology. It includes an upper flange and a lower flange. The lower flange has a sealing groove on its inner side, and a sealing gasket is installed inside the sealing groove. A fixing ring is located above the upper flange, and a rotating seat is located around the outer perimeter of the fixing ring. A fixing hook is rotatably connected to the rotating seat via a rotating shaft. The lower end of the fixing hook hooks onto the outer surface of the lower flange. A hydraulic cylinder is located at the center of the lower surface of the fixing ring, and the lower end of the hydraulic cylinder abuts against the upper flange. Hydraulic oil distributors are located on both sides above the upper flange. The two hydraulic oil distributors are connected to the hydraulic cylinders on both sides via pipes. This design delays the aging and deformation cycle of the sealing gasket structure and provides a fixing method where the hydraulic cylinder and the fixing hook cooperate, ensuring the pressure inside the tank while facilitating the opening of the end cap.

Description

Technical Field

[0001] This utility model relates to the field of reactor sealing technology, specifically to a high-pressure reactor sealing structure. Background Technology

[0002] High-pressure reactors are sealed reaction vessels resistant to high temperatures and pressures. They are made of high-quality stainless steel or special alloys, with working pressures up to 35 MPa and a temperature range of -80℃ to 500℃. Widely used in chemical, pharmaceutical, and new materials research and development fields, they feature high sealing performance, corrosion resistance, and customizability. Traditional high-pressure reactors use bolts through a flange structure and gaskets for sealing between the end cover and the vessel body. However, the sealing performance decreases as the gaskets age and deform. Opening the end cover requires removing the bolts on the flange, making the overall operation cumbersome. Utility Model Content

[0003] The purpose of this utility model is to provide a sealing structure for a high-pressure reactor to solve the problems mentioned in the background art, such as the traditional high-pressure reactor end cover being sealed by bolts through a flange structure and a sealing gasket, the sealing performance of which decreases after the sealing gasket structure ages and deforms, and the need to remove the bolts on the flange when opening the end cover, resulting in a cumbersome overall operation process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure reactor sealing structure, including an upper flange and a lower flange. The lower flange has a sealing groove on its inner side, and a sealing gasket is provided inside the sealing groove. A fixing ring is provided above the upper flange, and a rotating seat is provided around the outer side of the fixing ring. A fixing hook is rotatably connected inside the rotating seat via a rotating shaft. The lower end of the fixing hook is hooked to the outer surface of the lower flange. A hydraulic cylinder is provided at the middle position of the lower surface of the fixing ring, and the lower end of the hydraulic cylinder abuts against the upper flange. Hydraulic oil distributors are provided on both sides above the upper flange, and the two hydraulic oil distributors are connected to the hydraulic cylinders on both sides through pipes.

[0005] Preferably, there are twelve hydraulic cylinders, which are evenly arranged around the fixed ring. The fixed hooks are correspondingly arranged with the hydraulic cylinders. The lower surface of the fixed ring has a fixed groove at the position corresponding to the hydraulic cylinder. The hydraulic cylinders are spliced ​​and connected to the fixed grooves and fixed with bolts.

[0006] Preferably, a sealing edge is provided on the inner side of the upper flange at a position corresponding to the sealing groove. The sealing edge abuts against the inner side of the sealing groove, and the sealing groove and the sealing edge clamp and fix the sealing gasket.

[0007] Preferably, a pressure gap is left between the lower end of the fixing ring and the upper flange, and the lower end of the hydraulic cylinder extends into the interior of the pressure gap.

[0008] Preferably, one side of each of the two hydraulic oil distributors is connected to a hydraulic oil pipe.

[0009] Compared with the prior art, the beneficial effects of this utility model are: it replaces the traditional sealing method of sealing the end cover and the vessel body by bolting through the flange structure and setting a sealing gasket, and sets a sealing groove for the sealing gasket to protect the sealing gasket, delaying the aging and deformation cycle of the sealing gasket structure. It also sets a fixing method of hydraulic cylinder and fixing hook to ensure the pressure inside the tank while facilitating the opening operation of the end cover. Attached Figure Description

[0010] Figure 1 This is a front sectional view of the main structure of this utility model;

[0011] Figure 2 This is a front view schematic diagram of the main structure of this utility model;

[0012] Figure 3 This is a top view of the main structure of this utility model.

[0013] In the diagram: 1-Upper flange, 2-Lower flange, 3-Sealing groove, 4-Sealing gasket, 5-Fixing ring, 6-Rotating seat, 7-Fixing hook, 8-Hydraulic cylinder, 9-Hydraulic oil distributor, 10-Pipeline, 11-Fixing groove, 12-Sealing edge, 13-Pressure seam, 14-Hydraulic oil pipe. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-3This utility model provides a high-pressure reactor sealing structure, including an upper flange 1 and a lower flange 2. The lower flange 2 has a sealing groove 3 on its inner side, and a sealing gasket 4 is provided inside the sealing groove 3. A fixing ring 5 is provided above the upper flange 1. A rotating seat 6 is provided around the outer side of the fixing ring 5. A fixing hook 7 is rotatably connected inside the rotating seat 6 via a rotating shaft. The lower end of the fixing hook 7 is hooked to the outer surface of the lower flange 2. A hydraulic cylinder 8 is provided at the middle position of the lower surface of the fixing ring 5. The lower end of the hydraulic cylinder 8 abuts against the upper flange 1. Hydraulic oil distributors 9 are provided on both sides above the upper flange 1. The two hydraulic oil distributors 9 are connected to the hydraulic cylinders 8 on both sides through pipes 10.

[0016] In use, the upper flange 1 is fixedly connected to the end cover and ensures a tight seal, and the lower flange 2 is fixedly connected to the tank body and ensures a tight seal. A sealing groove 3 is set on the inner side of the lower flange 2, and a sealing gasket 4 is set inside the sealing groove 3 to ensure the tightness between the upper flange 1 and the lower flange 2. A fixing ring 5 is set above the upper flange 1, and a rotating seat 6 rotates the fixing ring 5 to connect the fixing hook 7. The lower end of the fixing hook 7 hooks with the lower flange 2, so that the upper flange 1 and the lower flange 2 are hooked and fixed. A hydraulic cylinder 8 is set at the lower end of the fixing ring 5. The hydraulic oil distributor 9 distributes the hydraulic oil pressure of the external hydraulic station evenly to each hydraulic cylinder 8 through the pipeline 10. The lower end of the hydraulic cylinder 8 abuts against the upper flange 1. The connection between the upper flange 1 and the lower flange 2 is ensured by the hook between the fixing hook 7 and the lower flange 2. When it is necessary to open the end cover, the hydraulic cylinder 8 retracts, so that the fixing hook 7 disengages from the lower flange 2, and the end cover can be separated from the tank body.

[0017] The number of hydraulic cylinders 8 is twelve, and the twelve hydraulic cylinders 8 are evenly arranged around the fixed ring 5. The fixed hooks 7 are correspondingly arranged with the hydraulic cylinders 8. The lower surface of the fixed ring 5 has a fixed groove 11 at the position corresponding to the hydraulic cylinder 8. The hydraulic cylinder 8 is spliced ​​and connected to the fixed groove 11 and fixed with bolts. The fixed groove 11 is provided on the fixed ring 5. The connection between the hydraulic cylinder 8 and the fixed ring 5 is ensured by the fixed connection between the hydraulic cylinder 8 and the fixed groove 11.

[0018] A sealing edge 12 is provided on the inner side of the upper flange 1 at a position corresponding to the sealing groove 3. The sealing edge 12 abuts against the inner side of the sealing groove 3. The sealing groove 3 and the sealing edge 12 clamp and fix the sealing gasket 4. The sealing edge 12 and the sealing groove 3 clamp and fix the sealing gasket 4 to ensure the sealing between the upper flange 1 and the lower flange 2.

[0019] A pressure gap 13 is left between the lower end of the fixing ring 5 and the upper flange 1, and the lower end of the hydraulic cylinder 8 extends into the interior of the pressure gap 13, leaving room for the fixing ring 5 to move up and down.

[0020] One side of each of the two hydraulic oil distributors 9 is connected to a hydraulic oil pipe 14, which connects the two hydraulic oil distributors 9 to an external hydraulic station.

[0021] 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 high-pressure autoclave sealing structure, characterized by: The assembly includes an upper flange (1) and a lower flange (2). The lower flange (2) has a sealing groove (3) on its inner side and a sealing gasket (4) inside the sealing groove (3). The upper flange (1) has a fixing ring (5) above it. The fixing ring (5) has a rotating seat (6) around its outer perimeter. The rotating seat (6) has a fixing hook (7) rotatably connected to it via a rotating shaft. The lower end of the fixing hook (7) is hooked to the outer surface of the lower flange (2). A hydraulic cylinder (8) is located in the middle of the lower surface of the fixing ring (5). The lower end of the hydraulic cylinder (8) abuts against the upper flange (1). The upper flange (1) has hydraulic oil distributors (9) on both sides. The two hydraulic oil distributors (9) are connected to the hydraulic cylinders (8) on both sides via pipes (10).

2. The high-pressure reactor sealing structure according to claim 1, characterized in that: The number of hydraulic cylinders (8) is twelve. The twelve hydraulic cylinders (8) are evenly arranged around the fixed ring (5). The fixed hook (7) is arranged corresponding to the hydraulic cylinder (8). The lower surface of the fixed ring (5) is provided with a fixed groove (11) at the position corresponding to the hydraulic cylinder (8). The hydraulic cylinder (8) is spliced ​​and connected to the fixed groove (11) and fixed by bolts.

3. The high-pressure reactor sealing structure according to claim 1, characterized in that: A sealing edge (12) is provided on the inner side of the upper flange (1) at a position corresponding to the sealing groove (3). The sealing edge (12) abuts against the inner side of the sealing groove (3), and the sealing groove (3) and the sealing edge (12) clamp and fix the sealing gasket (4).

4. The high-pressure reactor sealing structure according to claim 1, characterized in that: A pressure gap (13) is left between the lower end of the fixing ring (5) and the upper flange (1), and the lower end of the hydraulic cylinder (8) extends into the interior of the pressure gap (13).

5. The high-pressure reactor sealing structure according to claim 1, characterized in that: Hydraulic oil pipes (14) are connected to one side of each of the two hydraulic oil distributors (9).

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