A gas pipeline transport inert medium explosion suppressor and use method thereof

Abstract

The present invention proposes an explosion suppressor for inert medium transported by a gas pipeline and a method for using the same. The explosion suppressor comprises an inert medium storage tank and a valve group. The valve group comprises a valve body. A discharge channel is arranged in the valve body. One end of the discharge channel is connected to the inert medium storage tank, and the other end is provided with an injection head. An explosion relief plate is arranged between the discharge channel and the injection head. The explosion relief plate is used to close the discharge channel. An excitation tube is arranged on the valve body. The excitation tube is used to break the explosion relief plate. After the explosion relief plate is broken, the discharge channel is opened. The present invention facilitates the safe and efficient ejection of the inert medium in the storage tank at a millisecond response speed through the cooperation of the excitation tube and the explosion relief plate.

Description

Technical Field

[0001] The invention relates to the technical field of explosion suppressors, and in particular to an explosion suppressor for transporting inert media in a gas pipeline and a use method thereof. Background Art

[0002] Gas is a flammable and explosive gas. Once it leaks or accumulates during transportation, it is very likely to cause an explosion, posing a huge threat to people's lives and property. In order to improve the safety level of coal mine production and effectively reduce the incidence of gas explosion accidents, explosion prevention and suppression methods are used during gas pipeline transportation to ensure gas transportation safety and improve energy utilization efficiency.

[0003] In the existing gas pipeline explosion suppressor, such as patent document CN114832262B, the piston divides the accommodating chamber into an upper chamber and a lower chamber. When the gas generator in the upper chamber is triggered, it will instantly generate a large amount of high-energy gas, thereby pushing the piston to slide toward the opening. The piston will push the explosion suppression medium in the lower chamber to break the sealing membrane, which is prone to the following problems: the sealing membrane breaks slowly, which is not conducive to efficient explosion suppression and fire extinguishing; the structure of the accommodating chamber is complex, which increases the preparation cost. Summary of the invention

[0004] The present invention provides a gas pipeline transport inert medium explosion suppressor and a use method thereof, which facilitates safe and efficient ejection of the inert medium in the storage tank at a millisecond response speed through the cooperation of an excitation tube and an explosion relief plate.

[0005] The technical solution of the present invention is achieved as follows: a gas pipeline transport inert medium explosion suppressor, including an inert medium storage tank and a valve group, the valve group including a valve body, a discharge channel is arranged in the valve body, one end of the discharge channel is connected to the inert medium storage tank, and the other end is provided with an injection head, an explosion relief plate is arranged between the discharge channel and the injection head, the explosion relief plate is used to close the discharge channel, an excitation tube is arranged on the valve body, the excitation tube is used to break the explosion relief plate, and after the explosion relief plate is broken, the discharge channel is opened.

[0006] Furthermore, a pressure switch connected to the discharge channel is provided on the valve body, and the angle ɑ between the pressure switch and the axis of the discharge channel is an acute angle. The pressure switch is used to monitor the pressure in the inert medium storage tank.

[0007] Furthermore, a pressure gauge connected to the discharge channel is provided on the valve body. The pressure gauge is perpendicular to the axis of the discharge channel. The pressure gauge is used to display the pressure in the inert medium storage tank. A window is provided on the valve body at a position corresponding to the pressure gauge.

[0008] Furthermore, the excitation tube is located on the side of the explosion venting plate away from the injection head, the excitation tube is connected to the discharge channel, and the angle β between the excitation tube and the axis of the discharge channel is an acute angle, and the excitation tube faces the center of the explosion venting plate.

[0009] Furthermore, a sink is provided between the discharge channel and the injection head, and the explosion relief piece is placed in the sink. A gasket is provided at one end of the explosion relief piece close to the discharge channel, and a hollow compression block is provided at the other end.

[0010] Furthermore, a protective cover is arranged on the outside of the valve body, a sealing ring is arranged at the joint between the protective cover and the valve body, an injection channel communicating with the discharge channel is arranged on the protective cover, and the injection head is connected to the injection channel.

[0011] Furthermore, a waterproof aviation socket is provided on the protective cover, and the pressure switch and the excitation tube are both connected to the waterproof aviation socket.

[0012] Furthermore, a window is provided on the valve body of the shield at a position corresponding to the pressure gauge.

[0013] Furthermore, the explosion relief piece is an arched structure, and the opening end faces the discharge channel.

[0014] Furthermore, the inert medium stored in the inert medium storage tank is perfluorohexanone, which is used for fire extinguishing and has the characteristics of being green, environmentally friendly, pollution-free, convenient to store and transport, and safer for human body.

[0015] A method for using an explosion suppressor for transporting inert medium in a gas pipeline comprises the following steps:

[0016] The valve group is installed in the gas pipeline. When the gas in the pipeline explodes, the excitation tube is activated to break the explosion venting disc, open the discharge channel, and spray out the inert medium in the inert medium storage tank.

[0017] Beneficial effects of the present invention:

[0018] When gas combustion and explosion occur during gas transportation due to accidents such as lightning and equipment failure, the excitation tube of the present invention breaks the explosion vent plate in milliseconds, so that the inert medium in the storage tank is sprayed out safely and efficiently with a response speed of milliseconds, thereby blocking the further propagation of the explosion shock wave, suppressing the spread of flames, ensuring the safety and reliability of the low-concentration gas extraction and utilization system, and avoiding major and serious accidents that may cause mine destruction and loss of life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the explosion suppressor of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the valve group;

[0022] Figure 3 for Figure 2 A top view of

[0023] Figure 4 for Figure 3 Sectional view of AA. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1-4 As shown, a gas pipeline conveying inert medium explosion suppressor includes an inert medium storage tank 1 and a valve group, the valve group includes a valve body 2, a protective cover 4 is fixed to the outer side of the valve body 2 by a first screw 3, an intermediate disc 5 is fixed to the valve body 2, the intermediate disc 5 is butted with the upper end of the protective cover 4, and a first sealing ring 19 is installed at the junction of the protective cover 4 and the intermediate disc 5. A discharge channel 6 is arranged in the valve body 2, and an injection channel 7 communicating with the discharge channel 6 is arranged on the protective cover 4. The injection channel 7 is threadedly connected to the injection head 8, and the discharge channel 6, the injection channel 7 and the injection head 8 are coaxially arranged. The injection head 8 is a hemispherical structure, and the hemispherical structure has densely arranged conical divergent holes perpendicularly and evenly distributed to the arc surface, so as to evenly spray the inert medium. The middle is a hexagonal structure, and the tail is provided with a connecting thread matching the protective cover 4. One end of the discharge channel 6 away from the injection head 8 is connected to the inert medium storage tank 1, and the inert medium is perfluorohexanone or the like. The top of the valve body 2 is provided with an external thread section, and is connected to the inert medium storage tank 1 through the external thread section. The valve body 2 on the lower side of the external thread section is a quadrilateral structure, which is convenient for tightening with a wrench.

[0026] like Figure 2 and 4As shown, a sink is provided between the discharge channel 6 and the injection head 8. The sink is an inverted T-shaped groove, and the inner diameter is larger than the discharge channel 6. An explosion relief piece 9 is provided in the sink. The explosion relief piece 9 is an arched structure, and the open end faces the discharge channel 6. A gasket 10 is provided at one end of the explosion relief piece 9 close to the discharge channel 6. The gasket 10 is made of red copper gasket, and the red copper gasket has good sealing and high pressure resistance. A hollow pressing block 11 is provided at the other end of the explosion relief piece 9. The pressing block 11 presses the edge of the explosion relief piece 9, so that the explosion relief piece 9 is used to close the discharge channel 6. The pressing block 11 is fixedly connected to the valve body 2 by the second screw 12. Two second sealing rings 20 are installed between the bottom of the valve body 2 and the shield 4, respectively located on the inner and outer sides of the first screw 3, to ensure the sealing of the valve group. The valve body 2 adopts the carbon steel chrome plating process, and the explosion relief piece 9 is made of stainless steel. Its explosion relief pressure can reach 20Mpa, and it has excellent corrosion resistance and high pressure resistance.

[0027] An excitation tube 13 connected to the discharge channel 6 is provided on the valve body 2. The excitation tube 13 is located on the side of the explosion-proof plate 9 away from the injection head 8, and the angle β between the excitation tube 13 and the axis of the discharge channel 6 is an acute angle. The excitation tube 13 faces the center of the explosion-proof plate 9. The excitation tube 13 is used to break the explosion-proof plate 9. After the explosion-proof plate 9 is broken, the discharge channel 6 is opened. The excitation tube 13 is an existing device and can be purchased on the market. It is triggered and controlled by outputting a current signal. The excitation tube 13 can be a blasting tube, an instantaneous detonator, etc. Through the coordination of the excitation tube 13 and the position of the explosion-proof plate 9, the response time of breaking the explosion-proof plate 9 can be within 5ms, which is convenient for spraying inert medium to extinguish the fire in a very short time.

[0028] A pressure switch 14 connected to the discharge channel 6 is provided on the valve body 2. The angle ɑ between the pressure switch 14 and the axis of the discharge channel 6 is an acute angle. The pressure switch 14 is used to monitor the pressure in the inert medium storage tank 1. The pressure switch 14 is a mechanical pressure switch, and the model is PS20-QD. It is an existing device and can be purchased on the market. It can output a dry node opening and closing signal. When the pressure of the inert medium storage tank 1 is higher than the set value, the positive and negative electrodes are connected; when the pressure of the inert medium storage tank 1 is lower than the set value, the positive and negative electrodes are disconnected, so that the pressure state of the tank can be remotely monitored.

[0029] A pressure gauge 15 connected to the discharge channel 6 is also provided on the valve body 2. The pressure gauge 15 is perpendicular to the axis of the discharge channel 6. The pressure gauge 15 is used to display the pressure in the inert medium storage tank 1 in real time. A window 16 is provided at a position corresponding to the pressure gauge 15 on the shield 4. A tempered glass 17 is fixed to the window 16 with polymer AB glue. The center of the window 16 is directly opposite to the pressure gauge 15. The data of the pressure gauge 15 can be easily viewed through the window 16. The pressure gauge 15 is an axially seismic-resistant pressure gauge.

[0030] A waterproof aviation socket 18 is fixed on the shield 4 . The waterproof aviation socket 18 and the viewing window 16 are respectively located on both sides of the shield 4 . The pressure switch 14 and the excitation tube 13 are both connected to the waterproof aviation socket 18 through a signal line.

[0031] The method for using the gas pipeline transport inert medium explosion suppressor comprises the following steps:

[0032] The valve group is installed in the gas pipeline. When the gas in the pipeline explodes, the monitoring sensor sends a signal to the control controller, and the controller sends an electrical signal to the excitation tube 13. After the excitation tube 13 receives the electrical signal, the excitation tube 13 is activated to break the explosion relief plate 9, the discharge channel 6 is opened, and the inert medium in the inert medium storage tank 1 is sprayed out, which suppresses the flame of the explosion and combustion and blocks the generation and propagation of the explosion shock wave.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas pipeline transport inert medium explosion suppressor, characterized in that: The utility model comprises an inert medium storage tank and a valve group, wherein the valve group comprises a valve body, a discharge channel is arranged in the valve body, one end of the discharge channel is connected to the inert medium storage tank, and an injection head is arranged at the other end, an explosion relief plate is arranged between the discharge channel and the injection head, and the explosion relief plate is used to close the discharge channel, an excitation tube is arranged on the valve body, and the excitation tube is used to break the explosion relief plate, after the explosion relief plate is broken, the discharge channel is opened.

2. The explosion suppressor for inert medium transported in a gas pipeline according to claim 1, characterized in that: A protective cover is arranged on the outer side of the valve body, a sealing ring is arranged at the joint between the protective cover and the valve body, an injection channel communicating with the discharge channel is arranged on the protective cover, and the injection head is connected with the injection channel.

3. The explosion suppressor for inert medium transported in a gas pipeline according to claim 2, characterized in that: A pressure switch connected to the discharge channel is arranged on the valve body. The angle ɑ between the pressure switch and the axis of the discharge channel is an acute angle. The pressure switch is used to monitor the pressure in the inert medium storage tank.

4. The explosion suppressor for inert medium transported in a gas pipeline according to claim 2 or 3, characterized in that: A pressure gauge connected to the discharge channel is also provided on the valve body. The pressure gauge is perpendicular to the axis of the discharge channel and is used to display the pressure in the inert medium storage tank.

5. The explosion suppressor for inert medium transported in a gas pipeline according to claim 1 or 2, characterized in that: The excitation tube is located on the side of the explosion venting piece away from the injection head. The excitation tube is connected to the discharge channel, and the angle β between the excitation tube and the axis of the discharge channel is an acute angle. The excitation tube faces the center of the explosion venting piece. The explosion venting piece is an arched structure with its open end facing the discharge channel.

6. An explosion suppressor for inert medium transported in a gas pipeline according to claim 1, 2 or 5, characterized in that: A sink is arranged between the discharge channel and the injection head, and the explosion relief piece is placed in the sink. A gasket is arranged at one end of the explosion relief piece close to the discharge channel, and a hollow pressing block is arranged at the other end.

7. The explosion suppressor for inert medium transported in a gas pipeline according to claim 3, characterized in that: A waterproof aviation socket is arranged on the protective cover, and the pressure switch and the excitation tube are both connected to the waterproof aviation socket.

8. The explosion suppressor for inert medium transported in a gas pipeline according to claim 4, characterized in that: A window is arranged on the valve body on the protective cover at a position corresponding to the pressure gauge.

9. The explosion suppressor for inert medium transported in a gas pipeline according to claim 1, characterized in that: The inert medium stored in the inert medium storage tank is perfluorohexanone.

10. A method for using the explosion suppressor for transporting inert medium in a gas pipeline according to any one of claims 1 to 9, comprising the following steps: The valve group is installed in the gas pipeline. When the gas in the pipeline explodes, the excitation tube is activated to break the explosion venting disc, open the discharge channel, and spray out the inert medium in the inert medium storage tank.

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