Metal explosion relief valve

Abstract

This utility model discloses a metal explosion-proof valve, belonging to the field of explosion-proof valve technology. It includes a base with several mounting holes, a pressure cap fitted onto the base, several brackets fixedly mounted on the side of the base, and an electric actuator fixedly mounted between the brackets. The piston rod end of the electric actuator engages with the pressure cap. Several elastic units are provided on the side of the base, and these elastic units also engage with the pressure cap. Several fixing rods are fixedly mounted on the side of the base. By configuring the base in conjunction with the pressure cap, electric actuator, and spring, when flammable and explosive gases are generated inside the sealed equipment enclosure, causing excessive pressure, the electric actuator is activated. The electric actuator drives the pressure cap to open, achieving rapid venting and pressure relief. When thermal runaway further deteriorates, causing the electric actuator to lose power, the pressure increases to exceed the spring force, which in turn drives the pressure cap to open passively, thus achieving both active and passive dual safety protection functions.

Description

Technical Field

[0001] This utility model belongs to the field of explosion-proof valve technology, and specifically relates to a metal explosion-proof valve. Background Technology

[0002] Explosion-proof valves are used in dust removal systems containing flammable gases or substances and can serve as pressure relief devices for easily explosive pipelines or equipment.

[0003] Existing metal explosion-proof valves can only perform active pressure relief during use, but cannot perform passive pressure relief in the event of a sudden power outage, making it difficult to guarantee safety performance. Therefore, we propose a metal explosion-proof valve... Utility Model Content

[0004] The purpose of this utility model is to provide a metal explosion-proof valve to solve the problem mentioned in the background art that the existing metal explosion-proof valves can only perform active pressure relief during use, but cannot perform passive pressure relief in the event of a sudden power outage, making it difficult to guarantee safety protection performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal explosion-proof valve, including a base, a plurality of mounting holes on the base, a pressure cap attached to the base, a plurality of brackets fixedly mounted on the side of the base, an electric actuator fixedly mounted between the plurality of brackets, the piston rod end of the electric actuator cooperating with the pressure cap, a plurality of elastic units provided on the side of the base, and the elastic units cooperating with the pressure cap, a plurality of fixing rods fixedly mounted on the side of the base, the ends of the plurality of fixing rods fixedly mounted with the same mounting shell, and an exhaust unit provided inside the mounting shell.

[0006] The above solution utilizes a base in conjunction with a pressure cap, electric actuator, and spring. When flammable and explosive gases are generated inside the sealed equipment enclosure, causing excessive pressure, the electric actuator activates, driving the pressure cap to open for rapid venting and pressure relief. When thermal runaway worsens and the electric actuator loses power, the pressure increases beyond the spring force, causing the pressure cap to open passively as well. This achieves both active and passive safety protection. A fan is also included to accelerate gas discharge during the pressure relief process, improving depressurization efficiency.

[0007] In the above scheme, it should be noted that both the electric actuator and the exhaust unit are electrically connected to an external power source.

[0008] In a preferred embodiment, a sealing groove is provided on the side of the base, and a sealing ring is embedded inside the sealing groove.

[0009] By adopting the above solution, the setting of sealing ring one can ensure good sealing characteristics between the base and the mounting surface, and prevent gas leakage between the base and the mounting surface.

[0010] In a preferred embodiment, a sealing groove 2 is provided on one side of the pressure cap facing the base, and a sealing ring 2 is embedded in the inner wall of the sealing groove 2, and the sealing ring 2 is fitted and arranged on the side of the base.

[0011] By adopting the above solution, the setting of sealing ring two can ensure a good seal between the gland and the base when the gland is in the closed state, thereby preventing gas leakage.

[0012] In a preferred embodiment, a plurality of guide rods are fixedly installed on the side of the pressure cap, the guide rods slide through the base, and a limit plate is fixedly installed at the end of the guide rod away from the pressure cap.

[0013] By adopting the above scheme, the guide rod can support and guide the movement of the cap, improve the stability of the movement, and prevent the cap from shaking. The limit plate can play a limiting role to prevent the guide rod from sliding off the base.

[0014] In a preferred embodiment, the elastic unit includes a spring, which is sleeved on the outer surface of the guide rod, and one end of the spring is fixedly connected to the limiting plate.

[0015] By employing the above solution, the elastic force of the spring is used in conjunction to achieve a rapid reset effect.

[0016] In a preferred embodiment, the exhaust unit includes a fan, which is fixedly mounted on the inner wall of the mounting housing.

[0017] By using the above solution and utilizing the fan-operated exhaust unit, the exhaust process can be accelerated.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This metal explosion-proof valve is designed to work with a base, pressure cap, electric actuator, and spring. When flammable and explosive gases are generated inside the sealed equipment enclosure, causing excessive pressure, the electric actuator is activated. The electric actuator drives the pressure cap to open, achieving rapid venting and pressure relief. When thermal runaway worsens and the electric actuator is de-energized, the pressure increases to a level greater than the spring force, which will also drive the pressure cap to open passively, thus achieving both active and passive safety protection functions.

[0020] This metal explosion-proof valve is used in conjunction with a fan. During the pressure relief and exhaust process, the fan accelerates the discharge of gas, thereby improving the pressure relief efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0023] Figure 3 This is a structural schematic diagram of the cross-section of the base of this utility model.

[0024] In the diagram: 1. Base; 2. Pressure cap; 3. Bracket; 4. Electric actuator; 5. Spring; 6. Fixing rod; 7. Mounting shell; 8. Fan; 9. Sealing ring one; 10. Sealing ring two; 11. Guide rod; 12. Limiting plate. Detailed Implementation

[0025] Please see Figure 1-3 This utility model provides a metal explosion-proof valve, including a base 1, a plurality of mounting holes on the base 1, a pressure cover 2 attached to the base 1, a plurality of brackets 3 fixedly mounted on the side of the base 1, an electric actuator 4 fixedly mounted between the plurality of brackets 3, the piston rod end of the electric actuator 4 cooperating with the pressure cover 2, a plurality of elastic units provided on the side of the base 1, and the elastic units cooperating with the pressure cover 2, a plurality of fixing rods 6 fixedly mounted on the side of the base 1, the ends of the plurality of fixing rods 6 fixedly mounted with the same mounting shell 7, and an exhaust unit provided inside the mounting shell 7.

[0026] By using the base 1 in conjunction with the pressure cap 2, electric push rod 4, and spring 5, when flammable and explosive gases are generated inside the sealed equipment chamber, causing excessive pressure, the electric push rod 4 is activated. The electric push rod 4 drives the pressure cap 2 to open, achieving a rapid venting and pressure relief effect. When thermal runaway further deteriorates and the electric push rod 4 is de-energized, the pressure increases to a level greater than the elastic force of spring 5, which will also drive the pressure cap 2 to open passively, thus achieving a dual safety protection function of active and passive. By using a fan 8 in conjunction, the fan 8 accelerates the discharge of gas during the pressure relief and venting process, improving the pressure relief efficiency.

[0027] A sealing groove is provided on the side of the base 1, and a sealing ring 9 is embedded inside the sealing groove. The sealing ring 9 can ensure good sealing characteristics between the base 1 and the mounting surface and prevent gas leakage between the base 1 and the mounting surface.

[0028] The pressure cap 2 has a sealing groove 2 on one side facing the base 1, and a sealing ring 2 10 is embedded in the inner wall of the sealing groove 2. The sealing ring 2 10 is fitted and arranged on the side of the base 1. The setting of the sealing ring 2 10 can ensure a good seal between the pressure cap 2 and the base 1 when the pressure cap 2 is in the closed state, thereby preventing gas leakage.

[0029] Several guide rods 11 are fixedly installed on the side of the pressure cover 2. The guide rods 11 slide through the base 1. A limit plate 12 is fixedly installed at the end of the guide rod 11 away from the pressure cover 2. The guide rods 11 can support and guide the movement of the pressure cover 2, improve the stability of the movement, and prevent the pressure cover 2 from shaking. The limit plate 12 can play a limiting role to prevent the guide rods 11 from sliding off the base 1.

[0030] The elastic unit includes a spring 5, which is sleeved on the outer surface of the guide rod 11. One end of the spring 5 is fixedly connected to the limiting plate 12. The elastic force of the spring 5 is used to achieve a quick reset effect.

[0031] The exhaust unit includes a fan 8, which is fixedly installed on the inner wall of the mounting housing 7. The exhaust unit is operated by the fan 8, which can accelerate the exhaust effect.

[0032] In use, the base 1 can be installed on the sealed housing of the equipment using the mounting holes and mounting bolts. When the equipment housing is working normally, the pressure cover 2 is in the closed state. When a situation occurs inside the equipment housing that causes the pressure to increase, the electric push rod 4 and the fan 8 are activated. The electric push rod 4 drives the pressure cover 2 to open, achieving a rapid venting and pressure relief effect. When thermal runaway further deteriorates and the electric push rod 4 is de-energized, the pressure increases to a level greater than the spring force of the spring 5, which will also drive the pressure cover 2 to open passively, thus achieving a dual safety protection function of active and passive. By setting the fan 8 to work in conjunction, the fan 8 accelerates the discharge of gas during the pressure relief and venting process, improving the pressure relief efficiency.

Claims

1. A metal explosion-proof valve, characterized in that: The device includes a base (1) with several mounting holes, a pressure cap (2) attached to the base (1), several brackets (3) fixedly mounted on the side of the base (1), electric push rods (4) fixedly mounted between the brackets (3), the piston rod end of the electric push rod (4) working with the pressure cap (2), several elastic units provided on the side of the base (1), and the elastic units working with the pressure cap (2), several fixing rods (6) fixedly mounted on the side of the base (1), the ends of the several fixing rods (6) fixedly mounted with the same mounting shell (7), and an exhaust unit provided inside the mounting shell (7).

2. The metal explosion-proof valve according to claim 1, characterized in that: The base (1) has a sealing groove on its side, and a sealing ring (9) is embedded inside the sealing groove.

3. The metal explosion-proof valve according to claim 1, characterized in that: The pressure cap (2) has a sealing groove 2 on one side facing the base (1), and a sealing ring 2 (10) is embedded in the inner wall of the sealing groove 2. The sealing ring 2 (10) is attached to the side of the base (1).

4. The metal explosion-proof valve according to claim 1, characterized in that: Several guide rods (11) are fixedly installed on the side of the pressure cover (2). The guide rods (11) slide through the base (1). A limit plate (12) is fixedly installed at the end of the guide rod (11) away from the pressure cover (2).

5. The metal explosion-proof valve according to claim 4, characterized in that: The elastic unit includes a spring (5), which is sleeved on the outer surface of the guide rod (11), and one end of the spring (5) is fixedly connected to the limiting plate (12).

6. The metal explosion-proof valve according to claim 1, characterized in that: The exhaust unit includes a fan (8), which is fixedly installed on the inner wall of the mounting housing (7).

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