Disassembling structure of high-pressure gas tank

Abstract

The utility model discloses a kind of dismounting structure of high-pressure gas tank, including high-pressure gas tank body and tank cover body, the top edge of high-pressure gas tank body is provided with tank body flange, the bottom edge of tank cover body is provided with interface flange, coaxial butt joint between tank body flange and interface flange, the end face of interface flange is provided with sealing ring groove;Tank body flange is circumferentially distributed with positioning groove, the bottom of interface flange is circumferentially provided with positioning block, limiting hole is opened in positioning block, the circumferential distribution of tank body flange has locking assembly, and it is radially slidably arranged along tank body flange outer edge;The utility model is through the ingenious combination of stepped sealing structure, sliding insertion rod type locking assembly and the limiting structure of driving ring, realize fast, even locking, avoid traditional bolt fastening mode operation complex, time-consuming and labor-consuming, pre-tightening force uneven problem, the design simplifies dismounting process, improve work efficiency, and enhance the reliability of sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of gas storage tank equipment, in particular to a disassembly and assembly structure of a high-pressure gas storage tank. Background Technique

[0002] At present, the flange connection structure of high-pressure gas storage tanks generally adopts the design of multiple groups of bolts evenly distributed along the circumference of the flange. The bolts are tightened or disassembled one by one manually or with tools to meet the sealing requirements under high-pressure environments. Although such a structure can ensure the pressing effect of the flange end face through the bolt pre-tightening force, there are significant defects in practical applications:

[0003] The traditional bolt tightening method requires operators to apply force one by one in a specific order, such as diagonal or symmetrical order, and multiple cycles of adjustment are required to achieve the goal of uniform pre-tightening force. Although this method can achieve sealing, its dependence on manual operation results in a time-consuming and laborious disassembly and assembly process, and after long-term use, it is prone to sealing failure due to uneven bolt pre-tightening force. Summary of the Invention

[0004] The purpose of the present utility model is to provide a disassembly and assembly structure of a high-pressure gas storage tank to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A disassembly and assembly structure of a high-pressure gas storage tank, including a high-pressure gas storage tank body and a tank cover body. A tank body flange is provided at the top edge of the high-pressure gas storage tank body, and an interface flange is provided at the bottom edge of the tank cover body. The tank body flange and the interface flange are coaxially docked, and a sealing ring groove is opened on the end face of the interface flange;

[0006] Positioning grooves are circumferentially distributed on the tank body flange, positioning blocks are circumferentially arranged at the bottom of the interface flange, limiting holes are opened on the positioning blocks, and locking components are circumferentially distributed on the tank body flange and are slidably arranged radially along the outer edge of the tank body flange. The locking components include sliding insertion rods and grooves penetrating through their interiors, and wedge-shaped blocks are provided at the ends of the sliding insertion rods;

[0007] A driving ring is lapped on the tank body flange and sleeved on the outside of the tank body flange. The driving ring rotates axially around the tank body flange, and abutting blocks are provided on the inner side of the driving ring. The driving ring pushes the wedge-shaped blocks to move radially along the grooves through the inclined surfaces of the abutting blocks, so that the ends of the sliding insertion rods in the locking components are inserted into the limiting holes.

[0008] Preferably, insertion holes are opened on the driving ring, and limiting frames are symmetrically arranged on both sides of the tank body flange. The ends of the limiting frames are in a "U" - shaped structure to form radial limitation on the driving ring.

[0009] Preferably, the limiting frame has a movable groove, a limiting rod is slidably inserted into the limiting frame, the end of the limiting rod passes through the movable groove and matches the insertion hole, a fixing block is provided on the limiting rod, and an abutment spring is sleeved on the limiting rod between the movable groove and the fixing block.

[0010] Preferably, the sliding rod is slidably inserted into the groove, a guide block is provided on the sliding rod, a support spring is sleeved on the sliding rod, and a mounting plate is provided at the opening of the groove.

[0011] Preferably, a first sealing ring is provided in the sealing ring groove, and a second sealing ring is provided at the bottom of the can lid. The second sealing ring and the first sealing ring are alternately fitted in the sealing ring groove to form a stepped sealing structure.

[0012] Preferably, the supporting spring abuts against the guide block, causing the sliding rod to move a distance greater than the depth of the limiting hole, and a limiting block is provided at the end of the mounting plate.

[0013] Preferably, the positioning block and the positioning slot are connected in a corresponding insertion manner.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention achieves rapid and uniform locking through a clever combination of a stepped sealing structure, a sliding plug-in locking assembly, and a limiting structure for the drive ring. It avoids the problems of complex operation, time-consuming and labor-intensive operation, and uneven pre-tightening force of traditional bolt fastening methods. This design simplifies the disassembly and assembly process, reduces maintenance costs, and enhances the reliability of the seal. It is particularly suitable for high-pressure gas storage tanks that require frequent disassembly and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the high-pressure gas storage tank of this utility model.

[0017] Figure 2 This is a schematic diagram of the bottom of the can lid of this utility model.

[0018] Figure 3 This is a schematic diagram of the top structure of the high-pressure gas storage tank of this utility model.

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

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

[0021] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B.

[0022] Figure 7 This is a schematic diagram of the drive ring of this utility model.

[0023] In the diagram: 1. High-pressure gas storage tank; 2. Tank cover; 3. Tank flange; 31. Sealing ring groove; 32. First sealing ring; 33. Positioning groove; 34. Groove; 4. Interface flange; 41. Second sealing ring; 42. Positioning block; 43. Limiting hole; 5. Drive ring; 51. Insertion hole; 52. Abutment block; 6. Limiting frame; 61. Movable groove; 62. Limiting rod; 63. Fixing block; 64. Abutment spring; 7. Mounting plate; 71. Sliding insert rod; 72. Support spring; 73. Guide block; 74. Limiting block; 75. Wedge block. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 7 This utility model provides a technical solution: a disassembly and assembly structure for a high-pressure gas storage tank, including a high-pressure gas storage tank body 1 and a tank cover body 2. A tank body flange 3 is fixedly connected to the top edge of the high-pressure gas storage tank body 1, and an interface flange 4 is fixedly connected to the bottom edge of the tank cover body 2. The tank body flange 3 and the interface flange 4 are coaxially connected, and a sealing ring groove 31 is provided on the end face of the interface flange 4.

[0026] A first sealing ring 32 is bonded inside the sealing ring groove 31, and a second sealing ring 41 is bonded to the bottom of the can lid 2. The second sealing ring 41 and the first sealing ring 32 are alternately bonded inside the sealing ring groove 31 to form a stepped sealing structure. The stepped sealing structure provides a reliable seal and prevents gas leakage. The alternate bonding design enhances the sealing effect.

[0027] The tank flange 3 has circumferentially distributed positioning grooves 33, and the bottom of the interface flange 4 has a circumferentially welded positioning block 42. The positioning block 42 has a limit hole 43. The positioning block 42 and the positioning groove 33 are correspondingly inserted to ensure accurate positioning between the tank cover 2 and the high-pressure gas storage tank 1 and avoid misalignment, while ensuring the fit of the sealing ring.

[0028] Locking components are distributed circumferentially on the tank flange 3 and are slidably arranged along the outer edge of the tank flange 3. The locking components include a sliding rod 71 and a groove 34 that passes through it. A wedge block 75 is fixedly connected to the end of the sliding rod 71.

[0029] The sliding plug rod 71 is slidably inserted into the groove 34. A guiding block 73 is welded on the sliding plug rod 71. A supporting spring 72 is sleeved on the sliding plug rod 71. The model of the supporting spring 72 can be selected according to the actual working conditions. Under the elastic force of the supporting spring 72, the guiding block 73 can be pushed to move radially outwards. An installation plate 7 is arranged at the opening of the groove 34. The installation plate 7 is fixed on the tank body flange 3 by bolts.

[0030] The end of the installation plate 7 is fixedly connected with a limiting block 74. The position of the limiting block 74 allows the minimum contact area between the abutting block 52 and the wedge-shaped block 75, ensuring that when the abutting block 52 rotates, it can abut against the inclined surface of the wedge-shaped block 75 to make the wedge-shaped block 75 move radially.

[0031] A driving ring 5 is lapped on the tank body flange 3 and sleeved on the outside of the tank body flange 3. The driving ring 5 rotates axially around the tank body flange 3. An abutting block 52 is fixedly connected to the inner side of the driving ring 5. The driving ring 5 pushes the wedge-shaped block 75 to move radially along the groove 34 through the inclined surface of the abutting block 52, so that the end of the sliding plug rod 71 in the locking assembly is inserted into the limiting hole 43. The abutting block 52 converts the rotational movement of the driving ring 5 into the radial movement of the wedge-shaped block 75.

[0032] A jack 51 is opened on the driving ring 5. Limiting frames 6 are symmetrically and fixedly connected to both sides of the tank body flange 3. The end of the limiting frame 6 is in a "U" shape structure, forming a radial limit for the driving ring 5. The supporting spring 72 abuts against the guiding block 73 to make the moving distance of the sliding plug rod 7 more than the depth of the limiting hole 43, facilitating that when the driving ring 5 rotates in the reverse direction, under the elastic force of the supporting spring 72, the end of the sliding plug rod 71 moves away from the limiting hole 43 to unlock.

[0033] An activity groove is opened on the limiting frame 6. A limiting rod 62 is slidably inserted into the limiting frame 6. The end of the limiting rod 62 passes through the activity groove 61 and matches with the jack 51. A fixing block 63 is fixedly sleeved on the limiting rod 62. Abutting springs 64 are sleeved between the activity groove 61 and the fixing block 63 on the limiting rod 62. The model of the abutting springs 64 can be selected according to the actual working conditions. The depth of the jack 51 can be specifically designed according to the actual working conditions and is vertically arranged with the limiting hole 43, ensuring that under the elastic force of the abutting springs 64, the end of the limiting rod 62 is always inserted into the jack 51.

[0034] During actual installation, the tank cover 2 is coaxially aligned with the tank flange 3. Precise positioning is achieved using the positioning groove 33 and positioning block 42, ensuring that the second sealing ring 41 and the first sealing ring 32 are staggered and fitted within the sealing ring groove 31, forming a stepped sealing structure. Pulling the limiting rod 62 upwards and rotating the drive ring 5 causes the abutment block 52 inside the drive ring 5 to push the wedge-shaped block 75 at the end of the sliding rod 71 to move radially along the groove 34. The sliding rod 71 slides along the groove 34, and its end eventually inserts into the limiting hole 43 on the interface flange 4, achieving uniform circumferential locking. The limiting rod is then released. Under the elastic force of the abutment spring 64, the end of the limiting rod 62 is inserted into the insertion hole 51 to prevent the drive ring 5 from rotating. This ensures that the abutment block 52 always abuts against the wedge block 75, while the end of the sliding rod 71 is inserted into the limiting hole 43, achieving stable locking. When disassembling, the limiting rod 62 is pulled upward again to disengage it from the insertion hole 51, releasing the drive ring 5. The drive ring 5 is then rotated in the opposite direction, reducing the contact area between the abutment block 52 and the wedge block 75. Under the elastic force of the support spring 72, the end of the sliding rod 71 moves away from the limiting hole 43, thus unlocking the device.

[0035] 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 disassembly and assembly structure for a high-pressure gas storage tank, comprising a high-pressure gas storage tank body (1) and a tank cover body (2), characterized in that: At the top edge of the high-pressure gas storage tank body (1), a tank body flange (3) is provided. At the bottom edge of the tank cover body (2), an interface flange (4) is provided. The tank body flange (3) and the interface flange (4) are coaxially butted, and a sealing ring groove (31) is formed on the end face of the interface flange (4). Circumferentially distributed positioning grooves (33) are provided on the tank body flange (3). Circumferentially arranged positioning blocks (42) are provided at the bottom of the interface flange (4). A limiting hole (43) is formed in the positioning block (42). A locking component is circumferentially distributed on the tank body flange (3) and is arranged to slide radially along the outer edge of the tank body flange (3). The locking component includes a sliding insertion rod (71) and a groove (34) penetrating through its interior. A wedge-shaped block (75) is provided at the end of the sliding insertion rod (71). A driving ring (5) is lapped on the tank body flange (3) and sleeved outside the tank body flange (3). The driving ring (5) rotates axially around the tank body flange (3). An abutting block (52) is provided on the inner side of the driving ring (5). The driving ring (5) pushes the wedge-shaped block (75) to move radially along the groove (34) through the inclined surface of the abutting block (52), so that the end of the sliding insertion rod (71) in the locking component is inserted into the limiting hole (43).

2. The disassembly and assembly structure of a high-pressure gas storage tank according to claim 1, characterized in that: A jack (51) is formed on the driving ring (5). Limiting frames (6) are symmetrically provided on both sides of the tank body flange (3). The end of the limiting frame (6) is in a "C" - shaped structure to form radial limitation on the driving ring (5).

3. The disassembly and assembly structure of a high-pressure gas storage tank according to claim 2, characterized in that: An activity groove (61) is formed on the limiting frame (6). A limiting rod (62) is slidably inserted into the limiting frame (6). The end of the limiting rod (62) passes through the activity groove (61) and matches with the jack (51). A fixing block (63) is provided on the limiting rod (62). Abutting springs (64) are sleeved on the limiting rod (62) between the activity groove (61) and the fixing block (63).

4. The disassembly and assembly structure of a high-pressure gas storage tank according to claim 1, characterized in that: The sliding insertion rod (71) is slidably inserted into the groove (34). A guiding block (73) is provided on the sliding insertion rod (71). A supporting spring (72) is sleeved on the sliding insertion rod (71). An installation plate (7) is provided at the opening of the groove (34).

5. The disassembly and assembly structure of a high-pressure gas storage tank according to claim 1, characterized in that: A first sealing ring (32) is provided in the sealing ring groove (31). A second sealing ring (41) is provided at the bottom of the tank cover body (2). The second sealing ring (41) and the first sealing ring (32) are alternately fitted in the sealing ring groove (31) to form a stepped sealing structure.

6. The disassembly and assembly structure of a high-pressure gas storage tank according to claim 4, characterized in that: The supporting spring (72) abuts against the guiding block (73) to make the moving distance of the sliding insertion rod (71) greater than the depth of the limiting hole (43). A limiting block (74) is provided at the end of the installation plate (7).

7. The disassembly and assembly structure of a high-pressure gas storage tank according to claim 1, characterized in that: The positioning block (42) and the positioning groove (33) are correspondingly inserted and arranged.

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