Reaction kettle pressure rupture disc quick replacement assembly

Abstract

The utility model discloses a reaction kettle pressure bursting disc quick replacement subassembly relates to the technical field of bursting disc, this reaction kettle pressure bursting disc quick replacement subassembly includes the explosion -proof cylinder, the outer wall of the middle part of explosion -proof cylinder is installed with third fixed ring, the inside of third fixed ring is provided with second recess, the inside of second recess is installed with first clamping pipe, the top of first clamping pipe is installed with first fixed ring, the inside of first fixed ring is provided with first recess, the inside of first recess is installed with bursting disc, the upper portion of first clamping pipe is installed with second clamping pipe, the bottom of second clamping pipe is installed with second fixed ring, the bottom of second fixed ring is installed with annular pressure block, and the scheme has solved the problem that the flange and sleeve are welded fixed in the installation process in the process of using the existing reaction kettle bursting device, resulting in the need to replace the overall structure for replacing the bursting disc subsequently, and the use cost is increased significantly.

Description

Technical Field

[0001] This utility model relates to the field of rupture disc technology, specifically a quick-change component for pressure rupture discs in reaction vessels. Background Technology

[0002] A rupture disc is a pressure relief device widely used in chemical, energy, and power industries as a safety device for various pressure vessels and pipelines. In equipment prone to severe pressure fluctuations or containing flammable or explosive media, where extremely high dynamic response and sufficient relief capacity are required, or in situations where equipment temperatures are high and safety valves cannot meet the demands, rupture discs are necessary as safety relief devices to ensure that production equipment and facilities do not suffer serious damage.

[0003] For example, the announcement number CN213286777U is titled "Explosion-proof Device for a Reactor". The device includes a reactor, a sleeve is fixedly inserted through the side of the reactor, and a base plate is fixedly mounted on both sides of the inner wall of the sleeve. One end of a spring is fixedly mounted on the side of the base plate near the reactor, and a frame is fixedly mounted on the other end of the two springs. The frame is tightly fitted to the inner wall of the sleeve.

[0004] During the use of the above-mentioned device, the flange and sleeve are welded and fixed during installation, which means that the entire structure needs to be replaced when the rupture disc is replaced, which significantly increases the cost of use. Therefore, we proposed a quick replacement component for the pressure rupture disc of the reactor to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a quick-replacement component for pressure rupture discs in reaction vessels, in order to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-change assembly for a pressure rupture disc in a reactor, comprising an explosion-proof cylinder, a third fixing ring installed on the outer wall of the middle part of the explosion-proof cylinder, a second groove provided inside the third fixing ring, a first clamping tube installed inside the second groove, a first fixing ring installed at the top of the first clamping tube, a first groove provided inside the first fixing ring, a rupture disc installed inside the first groove, a second clamping tube installed at the upper part of the first clamping tube, a second fixing ring installed at the bottom of the second clamping tube, an annular pressure block installed at the bottom of the second fixing ring, multiple sets of circular grooves provided at the top of the first fixing ring, a third threaded groove provided on the inner wall of the circular grooves, multiple sets of second through holes provided inside the second fixing ring, a fourth threaded groove provided on the inner wall of the second through holes, the circular grooves and the second through holes corresponding to each other and respectively annularly distributed inside the first fixing ring and the second fixing ring.

[0007] Preferably, an annular gasket is installed on the inner top of the second groove.

[0008] Preferably, positioning springs are installed on both sides of the upper outer wall of the explosion-proof cylinder, a locking block is installed at the other end of the positioning spring, a telescopic rod is installed inside the positioning spring, and a first locking groove is provided on both sides of the middle inner wall of the first clamping tube.

[0009] Preferably, the outer wall of the third fixing ring is provided with a first through hole around its perimeter, the inner wall of the first through hole is provided with a first threaded groove, the lower outer wall of the first clamping tube is provided with a second slot around its perimeter, the inner wall of the second slot is provided with a second threaded groove, the first through hole and the second slot correspond to each other, and the first threaded rod is internally engaged with the first through hole and the second slot. The third fixing ring is threadedly connected to the first clamping tube through multiple sets of the first threaded rods, and a cross-shaped rubber block is installed at one end of the first threaded rod.

[0010] Preferably, a through groove is provided on one side of the top of the first fixing ring, the through groove being connected to the first groove, and an identification plate is installed on one side of the rupture disc.

[0011] Preferably, the top of the first fixing ring is provided with multiple sets of positioning grooves, and the bottom of the second fixing ring is provided with multiple sets of positioning posts. Both the positioning grooves and the positioning posts are cylindrical. The positioning grooves and the positioning posts correspond to each other and are distributed in a ring on the first fixing ring and the second fixing ring, respectively. The positioning grooves and the circular grooves are staggered from each other.

[0012] Preferably, the circular groove and the second through hole are internally engaged with a second threaded rod, the first fixing ring and the second fixing ring are fixedly connected by multiple sets of second threaded rods, and a rocker arm is installed on the top of the second threaded rod.

[0013] Preferably, the outer wall of the upper part of the second clamping tube is provided with an external thread groove, the top of the second clamping tube is threaded with a top cover, the inner wall of the top cover is provided with an internal thread, and the external thread groove is engaged with the internal thread.

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

[0015] (1) In this utility model, the threads on the outer wall of the second threaded rod mesh with the third and fourth threaded grooves. By rotating the second threaded rod in the forward direction, the circular groove and the second through hole can be connected, thereby connecting the first and second fixing rings. By bringing the first and second fixing rings closer together, the annular pressure block can squeeze and fix the rupture disc inside the first groove, thus realizing the installation of the rupture disc. By rotating the second threaded rod in the reverse direction, the first and second fixing rings can be disassembled, which facilitates the replacement of the rupture disc. This solves the problem that in the existing reactor rupture device, the flange and sleeve are welded and fixed during the installation process, which requires replacing the entire structure to replace the rupture disc, significantly increasing the cost of use.

[0016] (2) The positioning spring can be used to engage the card block in the first slot, which can fix the explosion-proof cylinder and the first clamping tube. The telescopic rod can keep the positioning spring in a horizontal state, thereby limiting the vertical displacement of the first clamping tube. The ring gasket can make the connection between the first clamping tube and the third fixing ring tighter, thereby ensuring the sealing of the explosion-proof cylinder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the front cross-sectional structure of the present invention. Figure 2 ;

[0021] Figure 5 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0022] In the diagram: 1. Explosion-proof cylinder; 2. Third fixing ring; 3. Second groove; 4. Annular gasket; 5. Positioning spring; 6. Locking block; 7. Telescopic rod; 8. First clamping tube; 9. First slot; 10. First through hole; 11. First threaded groove; 12. Second slot; 13. Second threaded groove; 14. First threaded rod; 15. Cross-shaped rubber block; 16. First fixing ring; 17. First groove; 18. Rupture disc; 19. Through groove; 20. Sign; 21. Second clamping tube; 22. Second fixing ring; 23. Annular pressure block; 24. Positioning groove; 25. Positioning post; 26. Circular groove; 27. Third threaded groove; 28. Second through hole; 29. ​​Fourth threaded groove; 30. Second threaded rod; 31. Rocker arm; 32. External threaded groove; 33. Top cover; 34. Internal thread. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5 This utility model provides an embodiment of a quick-replacement assembly for a reactor pressure rupture disc, including an explosion-proof cylinder 1. The explosion-proof cylinder 1 is installed on the top of the reactor. A third fixing ring 2 is installed on the outer wall of the middle part of the explosion-proof cylinder 1. A second groove 3 is provided inside the third fixing ring 2. Please refer to [link to relevant documentation]. Figure 5 An annular gasket 4 is installed at the top inner surface of the second groove 3. A first clamping tube 8 is installed inside the second groove 3. (See attached image.) Figure 3 Positioning springs 5 ​​are installed on both sides of the upper outer wall of the explosion-proof cylinder 1. A locking block 6 is installed at the other end of each positioning spring 5. A telescopic rod 7 is installed inside the positioning spring 5. First slots 9 are provided on both sides of the inner wall of the first clamping tube 8. When the first clamping tube 8 is placed inside the second groove 3, the locking block 6 can be engaged with the first slot 9 by the elastic force of the positioning spring 5. The telescopic rod 7 ensures that the positioning spring 5 remains horizontal, thus limiting the vertical displacement of the first clamping tube 8. The annular gasket 4 ensures a tighter connection between the first clamping tube 8 and the third fixing ring 2, thereby ensuring the internal sealing of the explosion-proof cylinder 1. Please refer to [link to relevant documentation]. Figure 5The outer wall of the third fixing ring 2 is provided with a first through hole 10 around its perimeter, and the inner wall of the first through hole 10 is provided with a first threaded groove 11. The lower outer wall of the first clamping tube 8 is provided with a second slot 12 around its perimeter, and the inner wall of the second slot 12 is provided with a second threaded groove 13. The first through hole 10 and the second slot 12 correspond to each other. The first threaded rod 14 is internally engaged with the first through hole 10 and the second slot 12. The third fixing ring 2 is threadedly connected to the first clamping tube 8 through multiple sets of first threaded rods 14. A cross-shaped rubber block 15 is installed at one end of the first threaded rod 14. Since the threads on the outer wall of the first threaded rod 14 mesh with the first threaded groove 11 and the second threaded groove 13, the first through hole 10 and the second slot 12 can be connected by rotating the first threaded rod 14 in the forward direction, and the rod is installed inside the first through hole 10 and the second slot 12, thereby realizing the fixed connection between the third fixing ring 2 and the first clamping tube 8. The third fixing ring 2 and the first clamping tube 8 can be disassembled by rotating the first threaded rod 14 in the reverse direction. The cross-shaped rubber block 15 simplifies the installation and disassembly process of the third fixing ring 2 and the first clamping tube 8, eliminating the need for other installation tools and making installation simple and convenient. A first fixing ring 16 is installed at the top of the first clamping tube 8. A first groove 17 is provided inside the first fixing ring 16, and a rupture disc 18 is installed inside the first groove 17. A second clamping tube 21 is installed at the upper part of the first clamping tube 8. A second fixing ring 22 is installed at the bottom of the second clamping tube 21, and an annular pressure block 23 is installed at the bottom of the second fixing ring 22. Multiple sets of circular grooves 26 are provided at the top of the first fixing ring 16, and a third threaded groove 27 is provided on the inner wall of each circular groove 26. Multiple sets of second through holes 28 are provided inside the second fixing ring 22, and a fourth threaded groove 29 is provided on the inner wall of each second through hole 28. The circular grooves 26 and the second through holes 28 correspond to each other and are respectively annularly distributed inside the first fixing ring 16 and the second fixing ring 22. Please refer to [link / reference]. Figure 1 and Figure 3 A second threaded rod 30 is internally engaged with the circular groove 26 and the second through hole 28. The first retaining ring 16 and the second retaining ring 22 are fixedly connected by multiple sets of second threaded rods 30. A rocker arm 31 is mounted on the top of each second threaded rod 30. (See also...) Figure 2 and Figure 4The top of the first fixing ring 16 is provided with multiple sets of positioning grooves 24, and the bottom of the second fixing ring 22 is provided with multiple sets of positioning posts 25. The positioning grooves 24 and the positioning posts 25 are both cylinders. The positioning grooves 24 and the positioning posts 25 correspond to each other and are distributed in a ring on the first fixing ring 16 and the second fixing ring 22 respectively. The positioning grooves 24 and the circular grooves 26 are staggered. When installing the rupture disc 18, the rupture disc 18 is placed inside the first groove 17, and the first fixing ring 16 and the second fixing ring 22 are initially positioned by the cooperation of the positioning groove 24 and the positioning post 25. At this time, the circular groove 26 and the second through hole 28 can be aligned. Since the threads on the outer wall of the second threaded rod 30 mesh with the third threaded groove 27 and the fourth threaded groove 29, the circular groove 26 and the second through hole 28 can be connected by rotating the second threaded rod 30 in the forward direction, thereby connecting the first fixing ring 16 and the second fixing ring 22. By bringing the first fixing ring 16 and the second fixing ring 22 closer together, the annular pressure block 23 can squeeze and fix the rupture disc 18 inside the first groove 17, thereby realizing the installation of the rupture disc 18. The first fixing ring 16 and the second fixing ring 22 can be disassembled by rotating the second threaded rod 30 in the reverse direction, thereby facilitating the replacement of the rupture disc 18.

[0025] Please see Figure 2 and Figure 3 A through groove 19 is provided on one side of the top of the first fixing ring 16, which is connected to the first groove 17. A sign 20 is installed on one side of the rupture disc 18. The through groove 19 facilitates the connection between the rupture disc 18 and the external sign 20. The sign 20 usually indicates important information such as the specifications, model and replacement date of the rupture disc 18 to ensure the safe operation of the equipment.

[0026] Please see Figure 3 The outer wall of the upper part of the second clamping tube 21 is provided with an external threaded groove 32, and a top cover 33 is threadedly installed on the top of the second clamping tube 21. The inner wall of the top cover 33 is provided with an internal thread 34, and the external threaded groove 32 and the internal thread 34 are engaged. The engagement of the external threaded groove 32 and the internal thread 34 makes the connection between the second clamping tube 21 and the top cover 33 more secure, and facilitates disassembly and maintenance. The tight connection between the top cover 33 and the second clamping tube 21 can seal the top of the explosion-proof cylinder 1, prevent the medium inside the reactor from leaking out, and maintain the system pressure balance.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-change assembly for pressure rupture discs in a reactor, including an explosion-proof cylinder (1), characterized in that: A third fixing ring (2) is installed on the outer wall of the middle part of the explosion-proof cylinder (1). A second groove (3) is provided inside the third fixing ring (2). A first clamping tube (8) is installed inside the second groove (3). A first fixing ring (16) is installed on the top of the first clamping tube (8). A first groove (17) is provided inside the first fixing ring (16). A rupture disc (18) is installed inside the first groove (17). A second clamping tube (21) is installed on the upper part of the first clamping tube (8). A second fixing ring (21) is installed on the bottom of the second clamping tube (21). The bottom of the second fixing ring (22) is equipped with an annular pressure block (23). The top of the first fixing ring (16) is provided with multiple sets of circular grooves (26). The inner wall of the circular groove (26) is provided with a third threaded groove (27). The interior of the second fixing ring (22) is provided with multiple sets of second through holes (28). The inner wall of the second through hole (28) is provided with a fourth threaded groove (29). The circular grooves (26) and the second through holes (28) correspond to each other and are respectively distributed in annular shape inside the first fixing ring (16) and the second fixing ring (22).

2. The quick-change assembly for the pressure rupture disc of the reactor according to claim 1, characterized in that: An annular gasket (4) is installed on the inner top of the second groove (3).

3. The quick-change assembly for the pressure rupture disc of the reactor according to claim 1, characterized in that: Positioning springs (5) are installed on both sides of the upper outer wall of the explosion-proof cylinder (1). A locking block (6) is installed at the other end of the positioning spring (5). A telescopic rod (7) is installed inside the positioning spring (5). A first slot (9) is provided on both sides of the middle inner wall of the first clamping tube (8).

4. The quick-change assembly for the pressure rupture disc of the reactor according to claim 1, characterized in that: The outer wall of the third fixing ring (2) is provided with a first through hole (10) around its perimeter. The inner wall of the first through hole (10) is provided with a first threaded groove (11). The lower outer wall of the first clamping tube (8) is provided with a second slot (12) around its perimeter. The inner wall of the second slot (12) is provided with a second threaded groove (13). The first through hole (10) and the second slot (12) correspond to each other. The first through hole (10) and the second slot (12) are internally meshed with a first threaded rod (14). The third fixing ring (2) is threadedly connected to the first clamping tube (8) through multiple sets of the first threaded rods (14). A cross-shaped rubber block (15) is installed at one end of the first threaded rod (14).

5. The quick-change assembly for the pressure rupture disc of the reactor according to claim 1, characterized in that: A through groove (19) is provided on one side of the top of the first fixing ring (16), the through groove (19) is connected to the first groove (17), and an identification plate (20) is installed on one side of the rupture disc (18).

6. The quick-change assembly for the pressure rupture disc of the reactor according to claim 1, characterized in that: The top of the first fixing ring (16) is provided with multiple sets of positioning grooves (24), and the bottom of the second fixing ring (22) is provided with multiple sets of positioning posts (25). The positioning grooves (24) and the positioning posts (25) are both cylinders. The positioning grooves (24) and the positioning posts (25) correspond to each other and are distributed in a ring on the first fixing ring (16) and the second fixing ring (22), respectively. The positioning grooves (24) and the circular grooves (26) are staggered.

7. The quick-change assembly for the pressure rupture disc of the reactor according to claim 1, characterized in that: The circular groove (26) and the second through hole (28) are internally meshed with a second threaded rod (30), the first fixing ring (16) and the second fixing ring (22) are fixedly connected by multiple sets of second threaded rods (30), and a rocker arm (31) is installed on the top of the second threaded rod (30).

8. The quick-change assembly for the pressure rupture disc of the reactor according to claim 1, characterized in that: The outer wall of the upper part of the second clamping tube (21) is provided with an external thread groove (32), and a top cover (33) is threadedly installed on the top of the second clamping tube (21). An internal thread (34) is installed on the inner wall of the top cover (33), and the external thread groove (32) and the internal thread (34) are engaged and connected.

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