Closure structure for a pressure vessel

Abstract

The utility model discloses a kind of capping structures of pressure vessel, it is related to pressure vessel capping technical field, including cabin, the outside of cabin is provided with dismounting mechanism, the top of dismounting mechanism is fixedly connected with multiple support blocks, the top of multiple support blocks is provided with sealing mechanism, the sealing mechanism includes maintenance frame, the inside of support block is fixedly connected in the outside of maintenance frame, the top of maintenance frame is fixedly connected with pneumatic cylinder in both sides, the output end of pneumatic cylinder is fixedly connected with pressing plate, the top of cabin, i.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel sealing technology, and in particular to a sealing structure for a pressure vessel. Background Technology

[0002] A pressure vessel is a sealed device used to hold gases or liquids under pressure, and is widely used in petrochemical, pharmaceutical, food, nuclear facilities, aerospace and other fields. The sealing structure of a pressure vessel is one of its key components, mainly used to seal the open end of the vessel to ensure that the vessel does not leak during operation, while also facilitating the maintenance and repair of the vessel.

[0003] A search revealed Chinese Patent Publication No. CN202807380U, which discloses a sealing structure for a liquid container. The structure includes a container body with an opening and an accessory cap. The accessory cap covers the opening of the container body, and a main sealing ring is provided between the accessory cap and the opening. The accessory cap also has a vent hole and an accessory vent plug that seals it. This invention uses a main sealing ring to seal the perimeter of the opening, and the vent hole releases compressed air / liquid generated inside the liquid container due to the pressure of the accessory cap, preventing the accumulation of internal pressure. This invention is applicable to the field of sealing and packaging liquid containers.

[0004] Although the aforementioned patent is approved, the sealing ring completes the sealing of the perimeter of the opening, and the vent can release the compressed air / liquid generated in the liquid container due to the pressing of the accessory cap, the sealing ring inevitably suffers from aging and irreversible deformation after long-term use. In the long run, the sealing performance of the pressure vessel is still difficult to guarantee. Therefore, a pressure vessel cap structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a sealing structure for a pressure vessel, aiming to improve the problem that the sealing performance of some devices in the prior art is difficult to guarantee.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pressure vessel sealing structure includes a chamber, a disassembly mechanism is provided on the outside of the chamber, a plurality of support blocks are fixedly connected to the top of the disassembly mechanism, and a sealing mechanism is provided on the top of the plurality of support blocks. The sealing mechanism includes a maintenance frame, the outside of which is fixedly connected to the inside of the support block. Cylinders are fixedly connected to both sides of the top of the maintenance frame. A pressure plate is fixedly connected to the output end of the cylinder. A bottom cylinder is fixedly connected to the top of the chamber, i.e., the side near the pressure plate. A top cover is fixedly connected to the bottom of the pressure plate. A top cylinder is fixedly connected to the bottom of the pressure plate, and the outside of the top cylinder is located inside the top cover. A connecting component is provided at the bottom of the top cover. The above technical solution utilizes the telescopic movement of a cylinder to drive the pressure plate, top cover, and top cylinder in coordinated operation, enabling rapid sealing of the pressure vessel. The tight fit between the flexible sealing ring and the mating groove, along with the close engagement between the top and bottom cylinders, ensures the stability and reliability of the sealing effect, effectively preventing internal leakage.

[0007] Preferably, the connecting assembly includes a sealing ring, the bottom of which is fixedly connected to the bottom of the top cover, and a docking groove is fixedly connected to the top of the cabin. By adopting the above technical solution, the sealing ring and the mating groove fit tightly together, forming a highly efficient sealing effect, effectively preventing leakage of the medium inside the pressure vessel and ensuring the safe operation of the equipment. The sealing ring is made of a soft material, which can adapt to different surface shapes and minor unevenness, improving the adaptability and stability of the sealing mechanism and extending the service life of the equipment.

[0008] Preferably, the disassembly mechanism includes multiple support rings, the outer surfaces of which are rotatably connected to the outside of the cabin, and the bottom of the multiple support blocks are fixedly connected to the top of the support rings; By adopting the above technical solution, the support ring is fixed to the outside of the cabin through a rotating connection, making the disassembly operation more flexible and enabling it to be quickly removed from the cabin.

[0009] Preferably, a connecting block is fixedly connected to the outer side of each pair of support rings, and a rotating column is rotatably connected inside the connecting block; By adopting the above technical solution, the connecting blocks link adjacent support rings together, enhancing the stability of the entire disassembly mechanism and ensuring that the structure does not loosen or deform during disassembly and installation. The rotating column design allows the support rings to rotate flexibly around the hull, greatly improving the efficiency of disassembly and installation and reducing the complexity and time required for operation.

[0010] Preferably, a connecting plate is fixedly connected to the other side of each pair of support rings, and the connecting plate is internally threaded with two bolts; By adopting the above technical solution, adjacent support rings are tightly fixed together by threaded bolts, which significantly enhances the connection strength between the support rings.

[0011] Preferably, the support ring located at the bottom of the cabin is equipped with multiple support rods; By adopting the above technical solution, the support rod provides additional stability to the entire disassembly mechanism.

[0012] Preferably, the sidewalls of the cabin are made of the same material as the top cover and the top cylinder, surrounding the outer periphery of the top cover; By adopting the above technical solution, this design ensures the sealing contact surface between the components, significantly improving the reliability of the seal.

[0013] Preferably, the top cylinder is slidably connected to the inside of the bottom cylinder, and the inside of the top cover is in close contact with the outside of the bottom cylinder; By adopting the above technical solution, the sliding connection between the top cylinder and the bottom cylinder and the fitting design between the top cover and the bottom cylinder form a double sealing mechanism, which significantly improves the reliability and stability of the seal and effectively prevents leakage of the internal medium.

[0014] In summary, this utility model has the following beneficial effects: 1. In this utility model, the telescopic movement of the cylinder drives the pressure plate, the top cover and the top cylinder to move downward, so that the sealing ring fits tightly with the mating groove. At the same time, the top cylinder slides into the bottom cylinder to achieve a stable seal. This design improves the sealing efficiency through the automated operation of the cylinder. The soft material of the sealing ring and the tightly fitted top and bottom cylinders enhance the stability and reliability of the seal.

[0015] 2. In this utility model, the connecting plate is separated by rotating the bolt, the fixing of the support ring is released, and then the rotational connection characteristics of the support ring are used to remove it from the cabin. At the same time, the support rod provides stable support for the support ring. This design significantly improves the disassembly efficiency and reduces the complexity of operation and the time required by quickly releasing the fixing and convenient rotational connection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a pressure vessel sealing structure proposed in this utility model; Figure 2 This is a schematic diagram of the top cover of a pressure vessel sealing structure proposed in this utility model; Figure 3 This is a schematic diagram of the sealing ring structure of a pressure vessel cover structure proposed in this utility model; Figure 4 This is a schematic diagram of the connecting block of the sealing structure of a pressure vessel proposed in this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Cabin; 2. Disassembly mechanism; 21. Support ring; 22. Connecting plate; 23. Bolt; 24. Connecting block; 25. Rotating column; 3. Support block; 4. Sealing mechanism; 41. Maintenance frame; 42. Bottom cylinder; 43. Cylinder; 44. Pressure plate; 45. Top cover; 46. Top cylinder; 47. Connecting assembly; 471. Sealing ring; 472. Docking groove. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1 to 3 The present invention provides an embodiment of a pressure vessel sealing structure, including a chamber 1, a disassembly mechanism 2 provided on the outside of the chamber 1, a plurality of support blocks 3 fixedly connected to the top of the disassembly mechanism 2, and a sealing mechanism 4 provided on the top of the plurality of support blocks 3. The sealing mechanism 4 includes a maintenance frame 41, designed to provide support. The maintenance frame 41 is externally fixedly connected to the inside of the support block 3. Cylinders 43 are fixedly connected to both sides of the top of the maintenance frame 41, designed to provide telescopic capability. The output end of the cylinders 43 is located at the top of the chamber 1, and a pressure plate 44 is fixedly connected to the output end of the cylinders 43, designed to provide connection and sealing capability. When the output end of the cylinders 43 telescopically extends, it can drive the pressure plate 44 to move together. A bottom cylinder 42 is fixedly connected to the top of the chamber 1, near the side of the pressure plate 44, designed to provide connection capability, enabling the pipe to transport objects from the inner wall of the chamber 1. A top cover 45 is fixedly connected to the bottom of the pressure plate 44, designed to provide sealing capability. When the output end of the cylinders 43 drives the pressure plate 44 to move towards the bottom cylinder 42, the top cover 45 moves accordingly, so as to surround the output port of the bottom cylinder 42. A top cylinder 46 is fixedly connected to the bottom of the pressure plate 44, designed to provide sealing capability. When the top cover 45 surrounds the bottom cylinder 42, the outside of the top cylinder 46 can slide to the pipe inside the bottom cylinder 42, so that it can stably seal the outlet of the bottom cylinder 42. The outside of the top cylinder 46 is located inside the top cover 45. The bottom of the top cover 45 is provided with a connecting component 47, which includes a sealing ring 471. Its design can provide connection capability, and it is made of soft material, including but not limited to rubber, silicone and other materials. The bottom of the sealing ring 471 is fixedly connected to the bottom of the top cover 45. The top of the chamber 1 is fixedly connected with a docking groove 472, which is designed to provide good docking space. At the same time, the material of the docking groove 472 is the same as that of the sealing ring 471, so that when the two are in contact, they can provide good sealing at the interface and enhance the sealing performance. The side wall of the chamber 1 is provided with the same material as the top cover 45 and the top cylinder 46 around the outer periphery of the top cover 45. The outside of the top cylinder 46 is slidably connected to the inside of the bottom cylinder 42, and the inside of the top cover 45 and the outside of the bottom cylinder 42 fit together. Specifically, when sealing the pressure vessel is required, cylinder 43 is first activated, and its output end begins to extend and retract. As the output end of cylinder 43 moves downward, it drives the pressure plate 44, which is fixedly connected to it, to move downward as well. A top cover 45 and a top cylinder 46 are fixedly connected to the bottom of the pressure plate 44, so the top cover 45 and the top cylinder 46 also move downward. A connecting assembly 47 is provided at the bottom of the top cover 45, in which a sealing ring 471 is made of a soft material (such as rubber or silicone), and its bottom is fixedly connected to the bottom of the top cover 45. The mating groove 472 is made of the same material as the sealing ring 471. When the top cover 45 moves downward, the sealing ring 471 comes into close contact with the mating groove 472 at the top of the chamber 1. Because both are made of the same soft material, a good sealing interface can be formed, thereby enhancing the sealing performance. Simultaneously, the outside of the top cylinder 46 is slidably connected to the inside of the bottom cylinder 42. The bottom cylinder 42 is fixedly connected to the top of the chamber 1, and its interior is equipped with pipes for transporting objects from the inner wall of the chamber 1 out. When the top cover 45 surrounds the bottom cylinder 42, the outer part of the top cylinder 46 can slide to the pipe inside the bottom cylinder 42, making the top cylinder 46 and the bottom cylinder 42 fit tightly together, thereby providing a stable seal for the outlet of the bottom cylinder 42. The inner part of the top cover 45 fits tightly with the outer part of the bottom cylinder 42, further enhancing the sealing effect. Throughout the process, the extension and retraction of the cylinder 43 drives the pressure plate 44, the top cover 45, and the top cylinder 46 to work together. Through the tight contact between the sealing ring 471 and the mating groove 472, and the fit between the top cylinder 46 and the bottom cylinder 42, the pressure vessel is sealed.

[0020] Reference Figure 1 and Figure 4 The disassembly mechanism 2 includes multiple support rings 21, designed to provide connectivity. The outer surfaces of the support rings 21 are rotatably connected to the outside of the cabin 1. The bottoms of multiple support blocks 3 are fixedly connected to the tops of the support rings 21. A connecting block 24 is fixedly connected to one side of the outer surfaces of every two support rings 21, also designed to provide connectivity. A rotating column 25 is rotatably connected inside the connecting block 24, designed to provide limiting capabilities and allow the two connecting blocks 24 located outside the rotating column 25 to rotate. The other side of every two support rings 21 is fixedly connected to... There is a connecting plate 22, which is designed to have good connection capability. The internal thread of the connecting plate 22 has two bolts 23. The threaded connection of the bolts 23 allows the two connecting plates 22 to fit together and clamp, so that the support ring 21 can be fixed to the outside of the cabin 1, achieving stable support for the support block 3. By rotating the bolts 23, the support ring 21 can be disassembled, so that the sealing mechanism 4 can be disassembled and maintained. The support ring 21 located at the bottom of the cabin 1 is equipped with multiple support rods, which are designed to provide stable support for the support ring 21. Specifically, when the pressure vessel's sealing structure needs to be disassembled and maintained, the bolt 23 is first rotated in a certain direction. Utilizing the threaded connection of the bolt 23, the two connecting plates 22 are gradually separated, thus releasing the fixation on the support ring 21. At this point, the support ring 21 is no longer tightly fixed to the outside of the chamber 1, allowing for disassembly. Because the support ring 21 is rotatably connected to the outside of the chamber 1, this rotatable connection design allows the support ring 21 to be easily removed from the chamber 1. The support ring 21, located at the bottom of the chamber 1, is equipped with multiple support rods. These support rods provide stable support for the support ring 21 during disassembly. After the support ring 21 is removed, the support block 3, which is fixedly connected to the top of the support ring 21, is also moved. As a key component connecting the support ring 21 and the sealing mechanism 4, the support block 3 allows for the disassembly and maintenance of the sealing mechanism 4 after the support ring 21 is removed. Through this design, the disassembly mechanism 2 can achieve rapid disassembly of the pressure vessel's sealing structure, facilitating the maintenance and repair of the sealing mechanism 4.

[0021] Working Principle: When a sealing operation is required on the pressure vessel, cylinder 43 is first activated, causing its output end to extend or retract. As the output end of cylinder 43 moves downward, it drives the pressure plate 44, which is fixedly connected to it, to move downward as well. Since the bottom of the pressure plate 44 is fixedly connected to the top cover 45 and the top cylinder 46, the top cover 45 and the top cylinder 46 also move downward. The bottom of the top cover 45 is equipped with a connecting assembly 47, in which the sealing ring 471 is made of a soft material (such as rubber or silicone), and its bottom is fixedly connected to the bottom of the top cover 45. The mating groove 472 is made of the same material as the sealing ring 471. When the top cover 45 moves downward, the sealing ring 471 will fit tightly with the mating groove 472 on the top of the chamber 1. Since the two are made of the same material and are soft, they can form a good sealing contact, thereby improving the sealing performance. At the same time, the outside of the top cylinder 46 and the inside of the bottom cylinder 42 form a sliding connection. The bottom cylinder 42 is fixedly connected to the top of the chamber 1 and is used to transport objects from the inner wall of the chamber 1 out. When the top cover 45 moves above and surrounds the bottom cylinder 42, the outside of the top cylinder 46 can slide into the pipe inside the bottom cylinder 42, making the top cylinder 46 and the bottom cylinder 42 fit tightly together, thereby achieving a stable seal on the outlet of the bottom cylinder 42. The inside of the top cover 45 fits tightly against the outside of the bottom cylinder 42, further enhancing the sealing effect. When the pressure vessel's sealing structure needs to be disassembled and maintained, the operator first rotates bolt 23. Due to the threaded connection of bolt 23, the two connecting plates 22 gradually separate, thus releasing the fixing of the support ring 21. At this point, the support ring 21 is no longer tightly fixed to the outside of the chamber 1, making it ready for disassembly. Because the support ring 21 is rotatably connected to the outside of the chamber 1, it can be easily removed from the chamber 1. During disassembly, multiple support rods installed on the support ring 21 at the bottom of the chamber 1 provide stable support. After the support ring 21 is removed, the support block 3, which is fixedly connected to the top of the support ring 21, is also moved. As a key component connecting the support ring 21 and the sealing mechanism 4, the disassembly of the support block 3 allows for the smooth disassembly and maintenance of the sealing mechanism 4. Through this design, the disassembly mechanism 2 can efficiently and quickly disassemble the pressure vessel's sealing structure, facilitating the maintenance and repair of the sealing mechanism 4.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing structure for a pressure vessel, comprising a chamber (1), characterized in that: The exterior of the cabin (1) is provided with a disassembly mechanism (2), and the top of the disassembly mechanism (2) is fixedly connected with multiple support blocks (3), and the top of the multiple support blocks (3) is provided with a sealing mechanism (4). The sealing mechanism (4) includes a maintenance frame (41), the outside of which is fixedly connected to the inside of the support block (3). Cylinders (43) are fixedly connected to the top two sides of the maintenance frame (41). A pressure plate (44) is fixedly connected to the output end of the cylinder (43). A bottom cylinder (42) is fixedly connected to the top of the cabin (1), i.e., the side near the pressure plate (44). A top cover (45) is fixedly connected to the bottom of the pressure plate (44). A top cylinder (46) is fixedly connected to the bottom of the pressure plate (44), and the outside of the top cylinder (46) is located inside the top cover (45). A connecting component (47) is provided at the bottom of the top cover (45).

2. A closure structure for a pressure vessel according to claim 1, wherein: The connecting assembly (47) includes a sealing ring (471), the bottom of which is fixedly connected to the bottom of the top cover (45), and the top of the cabin (1) is fixedly connected to a docking groove (472).

3. A closure structure for a pressure vessel according to claim 1, wherein: The disassembly mechanism (2) includes multiple support rings (21), the outside of which is rotatably connected to the outside of the cabin (1), and the bottom of multiple support blocks (3) is fixedly connected to the top of the support rings (21).

4. A closure structure for a pressure vessel according to claim 3, wherein: Each pair of support rings (21) is fixedly connected to a connecting block (24) on its outer side, and the connecting block (24) is rotatably connected to a rotating column (25).

5. A closure structure for a pressure vessel according to claim 4, wherein: Each pair of support rings (21) is fixedly connected to the other side of the outside of a connecting plate (22), and the connecting plate (22) is internally threaded with two bolts (23).

6. A closure structure for a pressure vessel according to claim 5, wherein: The support ring (21) located at the bottom of the cabin (1) is equipped with multiple support rods.

7. The closure structure for a pressure vessel according to claim 1, wherein: The side walls of the cabin (1) are made of the same material as the top cover (45) and the top cylinder (46) around the outer periphery of the top cover (45).

8. The closure structure for a pressure vessel according to claim 1, wherein: The top cylinder (46) is slidably connected to the inside of the bottom cylinder (42), and the inside of the top cover (45) is in contact with the outside of the bottom cylinder (42).

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