Micro-differential pressure explosion valve

Abstract

The utility model relates to the technical field of industrial safety equipment, and discloses a micro-differential pressure explosion valve which comprises an explosion valve body in a cylindrical shape. The fixing structure comprises a first fixing part and a second fixing part, the first fixing part comprises a first fixing ring plate fixedly installed at the top of the explosion valve body, a first connecting ring plate is fixedly installed at the top of the first fixing ring plate, and four sets of first threaded grooves are formed in the first connecting ring plate; a second fixing ring plate is arranged at the top of the explosion valve body, and the bottom of the second fixing ring plate is tightly attached to the top of the first fixing ring plate; the second fixing part comprises a third fixing ring plate fixedly installed at the top of the second fixing ring plate, and four sets of second threaded grooves are formed in the third fixing ring plate and the second fixing ring plate, so that the purpose of limiting and fixing the explosion-proof membrane is achieved, the connecting strength between the devices is improved, and the fixing effect between the devices is enhanced; and the use safety of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of industrial safety equipment technology, specifically, it relates to a micro differential pressure rupture valve. Background Technology

[0002] In industrial production and processing, especially in systems involving compressed gases and flammable or explosive media, overpressure is a common safety hazard. Once the internal pressure of a system exceeds its design limits, it can lead to equipment rupture, leakage, or even explosion, seriously threatening personnel safety and causing environmental pollution. Therefore, rupture valves, as important safety devices, are widely used in various pressure systems to automatically open when the system is overpressured, rapidly releasing excess pressure and ensuring stable system operation.

[0003] Utility model CN218883098U discloses a novel explosion relief valve, comprising a rupture tube, a bracket, a small shaft, a swing arm, a cover plate, and a counterweight. The rupture tube is bent upwards and equipped with an explosion-proof membrane. The bracket is connected to the outer side of the top opening of the rupture tube. One end of the swing arm is pivotally connected to the bracket via the small shaft. The cover plate is connected to the bottom surface of the swing arm, and the cover plate mates with the top opening of the rupture tube. The other end of the swing arm is detachably connected to the counterweight. This novel explosion relief valve ensures proper closure and can normally open the cover plate in the event of danger.

[0004] However, the aforementioned patent still has the following problems: gaps are prone to appear at key connection points such as the explosion-proof membrane and flanges during installation. This may not only weaken the sealing effect of the device but also become a source of safety hazards. To ensure the safe use of the device, these connections must be reinforced to eliminate potential leakage risks. As a core component of the explosion relief valve, the fixing effect of the explosion-proof membrane during installation is also crucial. If the explosion-proof membrane is not securely fixed or improperly installed, it may not be able to rupture in a timely and effective manner when the pressure rises abnormally, thus delaying the pressure relief opportunity and increasing the possibility of system damage and accidents.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the aforementioned technical problem of poor fixing effect of explosion-proof film, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A differential pressure rupture valve, comprising:

[0008] The blast valve body is cylindrical.

[0009] The fixing structure includes a first fixing part and a second fixing part. The first fixing part includes a first fixing ring plate fixedly installed on the top of the rupture valve body. A first connecting ring plate is fixedly installed on the top of the first fixing ring plate. The interior of the first connecting ring plate has four sets of first threaded grooves. A second fixing ring plate is provided on the top of the rupture valve body, and the bottom of the second fixing ring plate is in close contact with the top of the first fixing ring plate. The second fixing part includes a third fixing ring plate fixedly installed on the top of the second fixing ring plate. The interior of the third fixing ring plate and the second fixing ring plate has four sets of second threaded grooves. A valve cover is provided on the top of the rupture valve body. A fourth fixing ring plate is fixedly installed on the bottom of the valve cover. The interior of the fourth fixing ring plate has a snap-fit ​​groove, and the second threaded groove is snap-fitted into the snap-fit ​​groove.

[0010] In a preferred embodiment of the present invention, the second fixing part further includes a swing arm fixedly installed on the top of the valve cover. Two sets of first fixing plates are fixedly installed on the top of the swing arm, a push rod is provided between the two sets of first fixing plates, and a first fixing rod is fixedly installed at the bottom of the push rod.

[0011] In a preferred embodiment of the present invention, the second fixing part further includes a second fixing plate fixedly installed on the outer wall of one side of the rupture valve body, a third fixing plate fixedly installed on the top of the second fixing plate, a second fixing rod fixedly installed inside the third fixing plate, and a tethering rope sleeved between the first fixing rod and the second fixing rod.

[0012] In a preferred embodiment of this utility model, a first connecting flange is fixedly installed at the bottom of the rupture valve body, and sixteen sets of first hexagonal bolts are provided inside the first connecting flange. A connecting sleeve is provided at the bottom of the rupture valve body, a first connecting flange is fixedly installed at the top of the connecting sleeve, and a second connecting flange is fixedly installed at the bottom of the connecting sleeve. Twelve sets of second hexagonal bolts are provided at the bottom of the second connecting flange.

[0013] In a preferred embodiment of this utility model, a seventh fixing plate is fixedly installed on the outer wall of the connecting sleeve, an eighth fixing plate is fixedly installed on the top of the seventh fixing plate, a sixth fixing plate is fixedly installed on the outer wall of the rupture valve body, a fourth fixing plate is fixedly installed on one side of the outer wall of the sixth fixing plate, two sets of fifth fixing plates are fixedly installed on the top of the fourth fixing plate, a set of rotating rods is provided between the eighth fixing plate and the sixth fixing plate, and a set of rotating rods is provided between the fifth fixing plate and the push rod.

[0014] In a preferred embodiment of this utility model, a counterweight is fixedly installed on one side of the outer wall of the push rod, and an explosion-proof membrane is fixedly installed inside the second fixing ring plate.

[0015] In a preferred embodiment of this utility model, two sets of connecting plates are fixedly installed on the outer wall of the connecting sleeve, and a supporting base plate is fixedly installed on one side of the outer wall of the connecting plate. Four sets of third threaded grooves are opened at the bottom of the supporting base plate, and third hexagonal bolts are spirally installed inside the third threaded grooves.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. To achieve the purpose of limiting and fixing the explosion-proof membrane, improve the connection strength between devices, enhance the fixing effect between devices, and improve the safety of device use.

[0018] 2. To achieve the purpose of connecting and fixing the device, facilitating its normal use, relieving internal pressure, and improving the ease of use of the device.

[0019] 3. To achieve the purpose of auxiliary fixation of the device, enhance the stability of the device, facilitate the installation and fixation of the device, improve the flexibility of the device's use, and optimize the user experience of the device.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the fourth fixing ring plate structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the first connecting ring plate structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the second fixing ring plate structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the supporting base plate structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the second fixing plate structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the swing arm structure of this utility model.

[0029] In the diagram: 10. Rupture valve body; 11. First connecting flange; 12. First hex bolt; 13. Connecting sleeve; 14. Second connecting flange; 15. Second hex bolt; 16. First fixing ring plate; 17. First connecting ring plate; 18. First threaded groove; 19. Second fixing ring plate; 20. Third fixing ring plate; 21. Second threaded groove; 22. Explosion-proof membrane; 23. Valve cover; 24. Fourth fixing ring plate; 25. Snap-fit ​​groove; 26. Swing arm; 27. First fixing plate; 28. Push rod; 29. ​​Counterweight; 30. First fixing rod; 31. Second fixing plate; 32. Third fixing plate; 33. Second fixing rod; 34. Tie rope; 35. Fourth fixing plate; 36. Fifth fixing plate; 37. Sixth fixing plate; 38. Seventh fixing plate; 39. Eighth fixing plate; 40. Support base plate; 41. Connecting plate; 42. Third threaded groove; 43. Third hex bolt. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0031] Example 1: A differential pressure rupture valve, specifically as follows Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a rupture valve body 10, which is cylindrical in shape; a fixing structure, which includes a first fixing part and a second fixing part. The first fixing part includes a first fixing ring plate 16 fixedly installed on the top of the rupture valve body 10, a first connecting ring plate 17 fixedly installed on the top of the first fixing ring plate 16, and four sets of first threaded grooves 18 opened inside the first connecting ring plate 17. A second fixing ring plate 19 is provided on the top of the rupture valve body 10, and the bottom of the second fixing ring plate 19 is in close contact with the top of the first fixing ring plate 16. The second fixing part includes a third fixing ring plate 20 fixedly installed on the top of the second fixing ring plate 19, and four sets of second threaded grooves 21 opened inside the third fixing ring plate 20 and the second fixing ring plate 19. A valve cover 23 is provided on the top of the rupture valve body 10, and a fourth fixing ring plate 24 is fixedly installed on the bottom of the valve cover 23. A snap-fit ​​groove 25 is opened inside the fourth fixing ring plate 24, and the second threaded groove 21 is snap-fitted into the snap-fit ​​groove 25. The explosion-proof membrane is fixed by a fixed structure. The second fixing ring plate 19 is placed inside the explosion valve body 10, so that the bottom of the second fixing ring plate 19 is in close contact with the top of the first fixing ring plate 16. The external bolt is rotated and screwed into the inside of the second thread groove 21 and the first thread groove 18. The second fixing ring plate 19 is fixedly installed on the top of the first connecting ring plate 17. The valve cover 23 is placed on the top of the second fixing ring plate 19, so that the third fixing ring plate 20 is snapped into the inside of the snap-fit ​​groove 25, so that the valve cover 23 and the first fixing ring plate 16 clamp and fix the second fixing ring plate 19.

[0032] Specifically, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the second fixing part also includes a swing arm 26 fixedly installed on the top of the valve cover 23. Two sets of first fixing plates 27 are fixedly installed on the top of the swing arm 26, and a push rod 28 is arranged between the two sets of first fixing plates 27. A first fixing rod 30 is fixedly installed on the bottom of the push rod 28. The push rod 28 is limited by the swing arm 26 and the first fixing plates 27.

[0033] Specifically, such as Figure 1 and Figure 6 As shown, the second fixing part also includes a second fixing plate 31 fixedly installed on the outer wall of one side of the rupture valve body 10. A third fixing plate 32 is fixedly installed on the top of the second fixing plate 31. A second fixing rod 33 is fixedly installed inside the third fixing plate 32. A tie rope 34 is sleeved between the first fixing rod 30 and the second fixing rod 33. The second fixing rod 33 is limited and fixed by the second fixing plate 31 and the third fixing plate 32, and the second fixing rod 33 and the first fixing rod 30 are connected by the tie rope 34.

[0034] Based on the above, the structure of the rupture valve body 10, the first fixing ring plate 16, the first connecting ring plate 17, the first threaded groove 18, the second fixing ring plate 19, the third fixing ring plate 20, the second threaded groove 21, the valve cover 23, the fourth fixing ring plate 24, the snap-fit ​​groove 25, the swing arm 26, the first fixing plate 27, the push rod 28, the counterweight 29, the first fixing rod 30, the second fixing plate 31, the third fixing plate 32, the second fixing rod 33, and the tie rope 34 achieves the purpose of limiting and fixing the explosion-proof membrane, improving the connection strength between devices, enhancing the fixing effect between devices, and improving the safety of device use.

[0035] Example 2: Based on Example 1, specifically as follows... Figure 1 and Figure 3 As shown, a first connecting flange 11 is fixedly installed at the bottom of the rupture valve body 10. Sixteen sets of first hexagonal bolts 12 are installed inside the first connecting flange 11. A connecting sleeve 13 is installed at the bottom of the rupture valve body 10. The first connecting flange 11 is fixedly installed at the top of the connecting sleeve 13. A second connecting flange 14 is fixedly installed at the bottom of the connecting sleeve 13. Twelve sets of second hexagonal bolts 15 are installed at the bottom of the second connecting flange 14. The rupture valve body 10 and the connecting sleeve 13 are connected and fixed by the first connecting flange 11 and the first hexagonal bolts 12, and the connecting sleeve 13 is fixed by the second connecting flange 14 and the second hexagonal bolts 15.

[0036] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, a seventh fixing plate 38 is fixedly installed on the outer wall of the connecting sleeve 13, and an eighth fixing plate 39 is fixedly installed on the top of the seventh fixing plate 38. A sixth fixing plate 37 is fixedly installed on the outer wall of the rupture valve body 10, and a fourth fixing plate 35 is fixedly installed on one side of the outer wall of the sixth fixing plate 37. Two sets of fifth fixing plates 36 are fixedly installed on the top of the fourth fixing plate 35. A set of rotating rods is provided between the eighth fixing plate 39 and the sixth fixing plate 37, and a set of rotating rods is provided between the fifth fixing plate 36 and the push rod 28. The eighth fixing plate 39 is fixed by the seventh fixing plate 38, and the push rod 28 and the eighth fixing plate 39 are connected and fixed by the fourth fixing plate 35, the fifth fixing plate 36, and the sixth fixing plate 37.

[0037] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, a counterweight 29 is fixedly installed on one outer wall of the push rod 28, and an explosion-proof membrane 22 is fixedly installed inside the second fixing ring plate 19. The counterweight 29 is fixed by the push rod 28.

[0038] Based on the above, the structure of the rupture valve body 10, the first connecting flange 11, the first hexagonal bolt 12, the connecting sleeve 13, the second connecting flange 14, the second hexagonal bolt 15, the fourth fixing plate 35, the fifth fixing plate 36, the sixth fixing plate 37, the seventh fixing plate 38 and the eighth fixing plate 39 achieves the purpose of connecting and fixing the device, facilitating the normal use of the device, relieving the pressure inside the device, and improving the convenience of using the device.

[0039] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1 and Figure 5 As shown, two sets of connecting plates 41 are fixedly installed on the outer wall of the connecting sleeve 13. A support base plate 40 is fixedly installed on one side of the outer wall of the connecting plate 41. Four sets of third threaded grooves 42 are opened at the bottom of the support base plate 40. Third hexagonal bolts 43 are screwed into the interior of the third threaded grooves 42. By rotating the third hexagonal bolts 43, the third hexagonal bolts 43 are screwed into the interior of the third threaded grooves 42, and the connecting sleeve 13 is further fixed by the support base plate 40 and the connecting plates 41.

[0040] In summary, the structure of the supporting base plate 40, connecting plate 41, third threaded groove 42, and third hexagonal bolt 43 achieves the purpose of auxiliary fixation of the device, enhances the stability of the device, facilitates the installation and fixation of the device, improves the flexibility of the device's use, and optimizes the user experience of the device.

[0041] Working principle: The first fixing part includes a first fixing ring plate 16 and a first connecting ring plate 17. The first fixing ring plate 16 is fixedly installed on the top of the rupture valve body 10. The first connecting ring plate 17 has four sets of first threaded grooves 18 inside. The bottom of the second fixing ring plate 19 is tightly attached to the top of the first fixing ring plate 16. The second fixing part includes a third fixing ring plate 20, which, together with the second fixing ring plate 19, has four sets of second threaded grooves 21 inside. The bottom of the valve cover 23 has a fourth fixing ring plate 24, which has a snap-fit ​​groove 25 inside. The second threaded grooves 21 snap into the snap-fit ​​groove 25. The components are fixed by bolts screwed into the first and second threaded grooves. The swing arm 26 is fixed to the top of the valve cover 23. The push rod 28 is limited by the first fixing plate 27. The bottom of the push rod 28 has a first fixing rod 30. The second fixing rod 33 is fixed by the second fixing plate 31 and the third fixing plate 32. A tie rope 34 is sleeved between the first fixing rod 30 and the second fixing plate 32. The bottom of the rupture valve body 10 has a first connecting flange 11. The connecting sleeve 13 is connected by sixteen sets of first hexagonal bolts 12. The bottom of the connecting sleeve 13 has a second connecting flange 14, which is fixed by twelve sets of second hexagonal bolts 15. The outer wall of the connecting sleeve 13 has a seventh fixing plate 38 and an eighth fixing plate 39. The outer wall of the rupture valve body 10 has a sixth fixing plate 37, a fourth fixing plate 35 and a fifth fixing plate 36. These fixed plates are connected to the push rod 28 and the eighth fixed plate 39 via a rotating rod. A counterweight 29 is fixed to the side wall of the push rod 28. An explosion-proof membrane 22 is fixed inside the second fixed ring plate 19. Two sets of connecting plates 41 are located on the outer wall of the connecting sleeve 13, connecting to the supporting base plate 40. The bottom of the supporting base plate 40 has four sets of third threaded grooves 42, which are screwed in by third hexagonal bolts 43 for auxiliary fixation. The fixing structure limits and fixes the explosion-proof membrane 22 within the rupture valve body 10. When needed, the explosion-proof membrane 22 ruptures under pressure, allowing gas or liquid to pass through. The push rod 28 and counterweight 29 structure may be used to trigger or assist the rupture process under specific pressure. Connecting flanges and bolts ensure the overall structural stability, while the supporting base plate and connecting plates provide additional fixing support. The entire design aims to ensure reliable operation of the rupture valve under specific pressure differentials.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A differential pressure rupture valve, characterized in that, include: The rupture valve body (10) is cylindrical; The fixing structure includes a first fixing part and a second fixing part. The first fixing part includes a first fixing ring plate (16) fixedly installed on the top of the rupture valve body (10). A first connecting ring plate (17) is fixedly installed on the top of the first fixing ring plate (16). Four sets of first threaded grooves (18) are opened inside the first connecting ring plate (17). A second fixing ring plate (19) is provided on the top of the rupture valve body (10). The bottom of the second fixing ring plate (19) is in close contact with the top of the first fixing ring plate (16). The second fixing part includes a third fixing ring plate (20) fixedly installed on the top of the second fixing ring plate (19). The third fixing ring plate (20) and the second fixing ring plate (19) have four sets of second threaded grooves (21) inside. The top of the rupture valve body (10) is provided with a valve cover (23). The bottom of the valve cover (23) is fixedly installed with a fourth fixing ring plate (24). The fourth fixing ring plate (24) has a snap-fit ​​groove (25) inside. The second threaded groove (21) is snap-fitted into the inside of the snap-fit ​​groove (25).

2. The differential pressure rupture valve according to claim 1, characterized in that, The second fixing part also includes a swing arm (26) fixedly installed on the top of the valve cover (23). Two sets of first fixing plates (27) are fixedly installed on the top of the swing arm (26). A push rod (28) is provided between the two sets of first fixing plates (27). A first fixing rod (30) is fixedly installed at the bottom of the push rod (28).

3. The differential pressure rupture valve according to claim 1, characterized in that, The second fixing part also includes a second fixing plate (31) fixedly installed on the outer wall of one side of the rupture valve body (10), a third fixing plate (32) fixedly installed on the top of the second fixing plate (31), a second fixing rod (33) fixedly installed inside the third fixing plate (32), and a tethering rope (34) sleeved between the first fixing rod (30) and the second fixing rod (33).

4. The differential pressure rupture valve according to claim 1, characterized in that, The bottom of the rupture valve body (10) is fixedly installed with a first connecting flange (11), and sixteen sets of first hexagonal bolts (12) are provided inside the first connecting flange (11). The bottom of the rupture valve body (10) is provided with a connecting sleeve (13), the top of the connecting sleeve (13) is fixedly installed with the first connecting flange (11), and the bottom of the connecting sleeve (13) is fixedly installed with a second connecting flange (14), and the bottom of the second connecting flange (14) is provided with twelve sets of second hexagonal bolts (15).

5. The differential pressure rupture valve according to claim 4, characterized in that, A seventh fixing plate (38) is fixedly installed on the outer wall of the connecting sleeve (13), an eighth fixing plate (39) is fixedly installed on the top of the seventh fixing plate (38), a sixth fixing plate (37) is fixedly installed on the outer wall of the rupture valve body (10), a fourth fixing plate (35) is fixedly installed on one side of the outer wall of the sixth fixing plate (37), two sets of fifth fixing plates (36) are fixedly installed on the top of the fourth fixing plate (35), a set of rotating rods is provided between the eighth fixing plate (39) and the sixth fixing plate (37), and a set of rotating rods is provided between the fifth fixing plate (36) and the push rod (28).

6. The differential pressure rupture valve according to claim 2, characterized in that, A counterweight (29) is fixedly installed on one side of the outer wall of the push rod (28), and an explosion-proof membrane (22) is fixedly installed inside the second fixed ring plate (19).

7. The differential pressure rupture valve according to claim 4, characterized in that, Two sets of connecting plates (41) are fixedly installed on the outer wall of the connecting sleeve (13). A support base plate (40) is fixedly installed on one side of the outer wall of the connecting plate (41). Four sets of third thread grooves (42) are opened at the bottom of the support base plate (40). A third hexagonal bolt (43) is spirally installed inside the third thread groove (42).

Images