Triggering type internal pressure storage rapid explosion suppression equipment based on electric explosion pressure gathering and striking diaphragm

Abstract

The invention belongs to the technical field of rapid explosion suppression equipment, and provides internal pressure storage rapid explosion suppression equipment based on triggering of an electric explosion gathering and pressing membrane, the internal pressure storage rapid explosion suppression equipment comprises an explosion suppression tank body, and the explosion suppression tank body is filled with an explosion suppressant and high-pressure gas; the electric explosion pressure-gathering percussion type opening mechanism comprises an explosion diaphragm and a pressure-gathering percussion part, the explosion diaphragm is connected to the opening of the explosion suppression tank body in a sealed mode, the pressure-gathering percussion part comprises a pressure-gathering cavity, the two ends of the pressure-gathering cavity are provided with a jet flow opening and an electric explosion pipe respectively, and the pressure-gathering cavity is used for enabling high-pressure fuel gas generated by the electric explosion pipe to impact the explosion diaphragm. Electric explosion triggering and pressure gathering cavity focusing are adopted, membrane breaking can be conducted in milliseconds, instant release of the explosion suppressant is achieved, the response speed is high, meanwhile, no mechanical moving part exists, the problems of jamming and rusting are solved, no external air source exists in the design of internal pressure storage, the system integration degree is high, and the installation and maintenance cost and difficulty are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rapid explosion suppression equipment, and particularly relates to an internal pressure storage rapid explosion suppression equipment based on an electric explosion and pressure accumulation film piece triggering type. BACKGROUND

[0002] In the production, storage and use of explosives, accidental explosion accidents are prone to occur due to factors such as friction, impact and static electricity, and the energy released by the combustion and decomposition of explosives is large, and the combustion-to-explosion time is short, so it is necessary to start the explosion suppression device in a very short time to quickly suppress the explosion of explosives.

[0003] The prior art has the following problems: slow response: the traditional mechanical or electromagnetic valve opening mode has a long action time and cannot effectively intervene in the early stage of explosion. Reliability problem: mechanical structures may have problems such as jamming and rust, which affect the start at critical moments. Complex system: the external pressure storage system requires an additional high-pressure gas source and pipeline, increasing the complexity and maintenance cost of the system. Low membrane breaking efficiency: the traditional steel needle breaking membrane mode driven by gas generating agent cannot guarantee that the explosion suppression agent channel is completely and reliably opened in a very short time, and the overlarge gas pressure may cause damage to the steel needle, knife and other components, causing secondary damage to the accident site and increasing the risk of explosion. SUMMARY

[0004] The purpose of the present application is to provide an internal pressure storage rapid explosion suppression equipment based on an electric explosion and pressure accumulation film piece triggering type to solve the problems of slow response, poor reliability, complex structure, low membrane breaking efficiency and secondary damage risk of the existing explosion suppression equipment.

[0005] To achieve the above-mentioned purpose, the present application provides the following solution: an internal pressure storage rapid explosion suppression equipment based on an electric explosion and pressure accumulation film piece triggering type, comprising:

[0006] An explosion suppression tank body filled with explosion suppression agent and high-pressure gas;

[0007] An electric explosion and pressure accumulation firing opening mechanism, comprising a bursting diaphragm and a pressure accumulation firing component, the bursting diaphragm is sealingly connected to the opening of the explosion suppression tank body, and the pressure accumulation firing component comprises a pressure accumulation cavity, both ends of the pressure accumulation cavity are respectively provided with a jet opening and an electric explosion tube, and the pressure accumulation cavity is used to make high-pressure gas generated by the electric explosion tube impact the bursting diaphragm.

[0008] Preferably, the pressure accumulation firing component further comprises a stainless steel shell, the electric explosion tube is arranged in the stainless steel shell, the top of the pressure accumulation cavity is provided with an incident port and is communicated with the bottom of the stainless steel shell, and the end of the pressure accumulation cavity away from the jet opening is arranged close to the electric explosion tube.

[0009] Preferably, the jet flow opening of the poly-pressure cavity has a smaller inner diameter than the incident opening, and a curved surface is arranged between the jet flow opening and the incident opening, and a plurality of flow guide ribs are fixedly connected to the curved surface along the axis of the poly-pressure cavity at equal intervals.

[0010] Preferably, a tank connecting flange is fixedly connected to the opening of the explosion suppression tank, a channel is arranged in the tank connecting flange, and the burst diaphragm is fixedly connected in the channel of the tank connecting flange.

[0011] Preferably, the middle part of the burst diaphragm is arranged as a convex structure, the convex structure faces away from the explosion suppression tank, a fixing ring is fixedly connected to the outer side of the burst diaphragm, a placing groove is arranged at the end of the channel of the tank connecting flange away from the explosion suppression tank, and the fixing ring is arranged in the placing groove.

[0012] Preferably, a sealing gasket for improving sealing is arranged between the fixing ring and the placing groove.

[0013] Preferably, a poly-pressure firing component fixing flange is fixedly connected to the side of the tank connecting flange away from the explosion suppression tank, the poly-pressure firing component fixing flange abuts against the fixing ring, the stainless steel shell is fixedly connected to the middle part of the poly-pressure firing component fixing flange, and the poly-pressure cavity is in contact with the top end of the convex structure of the burst diaphragm.

[0014] Preferably, a threaded sleeve is fixedly connected to the middle part of the poly-pressure firing component fixing flange through a connecting rod, a threaded structure is arranged on the outer side of the stainless steel shell, and the stainless steel shell is fixedly connected in the threaded sleeve through the threaded structure.

[0015] Preferably, a plurality of preset cracks are arranged in the middle part of the burst diaphragm, and the plurality of preset cracks are distributed in a radial manner.

[0016] Preferably, a shower head connecting flange is fixedly connected to the side of the poly-pressure firing component fixing flange away from the tank connecting flange, a shower head is communicated to the side of the shower head connecting flange away from the poly-pressure firing component fixing flange, and the shower head is arranged corresponding to the burst diaphragm through the shower head connecting flange.

[0017] Compared with the prior art, the present application has the following advantages and technical effects:

[0018] 1. The electric detonation tube is used as a trigger source in the present application, which can be detonated in an extreme time, and the design of internal pressure storage and the focusing and pressurizing effect of the poly-pressure cavity on the gas can rapidly break the diaphragm in the extremely early stage of explosion, so that the instantaneous release of the explosion suppression agent is realized, and the initial explosion is effectively intervened.

[0019] 2. The application discards the traditional mechanical moving parts and the environment-affected electromagnetic valve, eliminates the failure risks such as jamming and rust, and simultaneously adopts the internal pressure storage mode, fills the high-pressure driving gas in the explosion suppression tank body in advance, does not need external high-pressure gas source and complex pipeline, and the electric explosion tube and the pressure aggregation firing mechanism are full-sealed solid structures, have strong anti-interference ability, and are reliable in action. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 It is a schematic diagram of the explosion suppression equipment of the present application.

[0022] Figure 2 It is an explosion diagram of the electric explosion pressure aggregation firing opening mechanism of the present application.

[0023] Figure 3 It is a sectional view of the pressure aggregation firing component of the present application.

[0024] Figure 4 It is a top view of the pressure aggregation cavity of the present application.

[0025] Figure 5 It is a schematic diagram of the preset crack on the bursting diaphragm of the present application.

[0026] 1, explosion suppression tank body; 2, electric explosion pressure aggregation firing opening mechanism; 201, nozzle connecting flange; 202, pressure aggregation firing component; 301, stainless steel shell; 302, electric explosion tube; 303, pressure aggregation cavity; 304, flow guide rib; 203, pressure aggregation firing component fixing flange; 204, bursting diaphragm; 205, tank body connecting flange; 401, preset crack. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0029] REFERENCE Figures 1-5The application provides an internal pressure storage rapid explosion suppression equipment based on an electric explosion and pressure accumulation film piece trigger type, which comprises

[0030] An explosion suppression tank body 1 is filled with explosion suppression agents and high-pressure gas;

[0031] An electric explosion and pressure accumulation firing type opening mechanism 2 comprises a burst diaphragm 204 and a pressure accumulation firing component 202, the burst diaphragm 204 is sealingly connected at an opening of the explosion suppression tank body 1, and the pressure accumulation firing component 202 comprises a pressure accumulation cavity 303, both ends of the pressure accumulation cavity 303 are respectively provided with a jet opening and an electric explosion tube 302, and the pressure accumulation cavity 303 is used for making high-pressure gas generated by the electric explosion tube 302 impact the burst diaphragm 204.

[0032] The explosion suppression tank body 1 is mainly used as a storage container, is filled with explosion suppression agents in advance, is filled with high-pressure gas, uses the high-pressure gas as a driving medium, forms an internal pressure storage environment, and is used for rapidly driving the explosion suppression agents to release when triggered; the burst diaphragm 204 is mainly used for plugging the explosion suppression tank body 1 in a non-triggered state; and the pressure accumulation cavity 303 is mainly used for making high-pressure gas generated by the electric explosion tube 302 directly act on a local area of the burst diaphragm 204 after being gathered, integrating the high-speed and turbulent jet flow generated by the electric explosion tube 302 into a concentrated, faster and more directional collimated impact jet flow, and making the burst diaphragm 204 break. Overall, the application has a fast response speed, the electric explosion triggering and the pressure accumulation cavity focusing can break the film in milliseconds, realize instantaneous release of the explosion suppression agents, has a reliable structure, has no mechanical moving parts, avoids the problems of jamming and rust, the internal pressure storage design has no external gas source, the system has high integration, and the installation and maintenance costs and difficulties are reduced.

[0033] In the embodiment, the explosion suppression tank body 1 has a preliminary design volume of 10-20L, the explosion suppression agents have a filling amount of 4-8kg, the internal pressure storage driving is 2.5-4.2MPa, and the explosion suppression agents can adopt dry powder extinguishing agents.

[0034] In a further optimization scheme, the pressure accumulation firing component 202 further comprises a stainless steel shell 301, the electric explosion tube 302 is arranged in the stainless steel shell 301, the top of the pressure accumulation cavity 303 is provided with an incident port and is communicated with the bottom of the stainless steel shell 301, and the end of the pressure accumulation cavity 303, which is away from the jet opening, is arranged close to the electric explosion tube 302.

[0035] In a further optimization scheme, the jet opening of the pressure accumulation cavity 303 has a smaller inner diameter than the incident port, the jet opening and the incident port are connected through a curved surface, and a plurality of flow guide ribs 304 are fixedly connected on the curved surface along the axis of the pressure accumulation cavity 303 at equal intervals.

[0036] As Figures 2-4As shown, the electric detonation tube 302 is installed inside the stainless steel shell 301, and its electric lead is led out through the line guide hole (not shown in the figure) on the side of the poly-pressure firing component fixing flange 203, connected with the external explosion detection controller, while ensuring that the electric detonation tube line does not affect the release effect of the explosion suppression equipment. The poly-pressure cavity 303 is a key focusing and pressurizing element, and its upper part is provided with an incident port, which can be fixed on the bottom of the stainless steel shell 301 by welding, so that the internal cavity thereof is adjacent to the gas production end of the electric detonation tube 302. The lower end of the poly-pressure cavity 303 is a jet opening. The inner cavity is designed as a variable cross-section structure, and the inner diameter of the jet opening is significantly smaller than that of the incident port, and the two are connected through a smooth aerodynamic curved surface. On the inner wall curved surface, a plurality of guide ribs 304 are arranged at equal intervals along the axis direction.

[0037] Further optimization scheme, the opening of the explosion suppression tank body 1 is fixedly connected with the tank body connecting flange 205, and the tank body connecting flange 205 is provided with a channel, and the bursting diaphragm 204 is fixedly connected in the channel of the tank body connecting flange 205.

[0038] Further optimization scheme, the tank body connecting flange 205 is externally provided with a pressure gauge, which can display the internal pressure of the explosion suppression tank body in real time, facilitating inspection and maintenance.

[0039] Further optimization scheme, the middle part of the bursting diaphragm 204 is provided as a convex structure, and the convex part faces away from the explosion suppression tank body 1, and the outer side of the bursting diaphragm 204 is fixedly connected with a fixing ring, and the end of the channel of the tank body connecting flange 205 away from the explosion suppression tank body 1 is provided with a placing groove, and the fixing ring is arranged in the placing groove.

[0040] Further optimization scheme, a sealing gasket for improving sealing is arranged between the fixing ring and the placing groove.

[0041] Further optimization scheme, the side of the tank body connecting flange 205 away from the explosion suppression tank body 1 is fixedly connected with the poly-pressure firing component fixing flange 203, the poly-pressure firing component fixing flange 203 abuts against the fixing ring, the stainless steel shell 301 is fixedly connected at the middle part of the poly-pressure firing component fixing flange 203, and the poly-pressure cavity 303 is in contact with the top end of the convex part of the bursting diaphragm 204.

[0042] In this embodiment, after the explosion suppression equipment is installed, the jet opening end face of the poly-pressure cavity 303 slightly contacts or maintains a very small gap with the top end of the convex part of the bursting diaphragm 204.

[0043] Further optimization scheme, the middle part of the poly-pressure firing component fixing flange 203 is fixedly connected with a threaded sleeve through a connecting rod, and the outside of the stainless steel shell 301 is provided with a threaded structure, and the stainless steel shell 301 is fixedly connected in the threaded sleeve through the threaded structure.

[0044] As Figure 2As shown, in this embodiment, a tank connecting flange 205 is welded or connected by threads at the outlet end of the explosion suppression tank body 1. The tank connecting flange 205 is internally provided with a passage, and the top end is processed with a placing groove. The bursting diaphragm 204 is integrally formed by a stainless steel pressure-bearing diaphragm in the middle and a stainless steel fixing ring along the outer edge, and the middle is processed into a convex structure facing the outside of the explosion suppression tank body 1. The bursting diaphragm 204 is positioned by embedding its fixing ring into the placing groove of the tank connecting flange 205, and a sealing washer such as a rubber O-ring or a metal washer is arranged between the fixing ring and the placing groove to ensure high-pressure sealing.

[0045] As shown in the Figure 2 above, above the tank connecting flange 205, a pressure accumulation firing component fixing flange 203 is fixedly connected by bolts. The inner diameter of the pressure accumulation firing component fixing flange 203 matches the inner diameter of the fixing ring of the bursting diaphragm 204, and after installation, the lower end face of the pressure accumulation firing component fixing flange 203 presses the fixing ring and the sealing washer, further enhancing the sealing.

[0046] Further optimization scheme, the middle part of the bursting diaphragm 204 is processed with a plurality of preset cracks 401, and the plurality of preset cracks 401 are distributed in a radial manner.

[0047] As shown in the Figure 5 above, in the central area of the convex structure of the bursting diaphragm 204, a radial pattern, i.e. a preset crack 401, is pre-made by using precise machining techniques such as laser. When the pressure pulse acts, the bursting diaphragm 204 will preferentially expand along the path of the preset crack 401, forming a regular opening without debris falling off, thereby achieving uniform blasting and achieving the effect of rapid release of the explosion suppression agent.

[0048] Further optimization scheme, the pressure accumulation firing component fixing flange 203 is fixedly connected with a nozzle connecting flange 201 away from the tank connecting flange 205, the nozzle connecting flange 201 is communicated with a nozzle away from the pressure accumulation firing component fixing flange 203, and the nozzle is correspondingly arranged with the bursting diaphragm 204 through the nozzle connecting flange 201.

[0049] As shown in the Figure 2 above, the nozzle connecting flange 201 is fixedly connected to the pressure accumulation firing component fixing flange 203 by bolts, and is used to install a nozzle at a specific angle (such as a modified open-type stainless steel spiral nozzle, with a spraying angle of 15-30 degrees at the center, a total coverage angle of 120-150 degrees, an interface specification of DN25, and a stainless steel material). The nozzle passes through the central passage of the nozzle connecting flange 201 and is opposite to the broken opening of the bursting diaphragm 204 below, and is used to further atomize the sprayed explosion suppression agent and guide it to the predetermined protection area.

[0050] The working process of this embodiment is as follows:

[0051] When the external explosion detection controller detects the initial explosion signal, it immediately sends a signal to the controller. The controller immediately outputs a high-energy pulse current to the electric detonation tube 302. The electric detonation tube 302 is excited to explode in milliseconds, generating a high-temperature and high-pressure gas jet. The initial jet enters the pressure accumulation chamber 303. In the special and narrow space of the pressure accumulation chamber 303, through the effects of cross-section contraction, curved flow guide and combing of the flow guide ribs 304, the turbulent gas jet is integrated, accelerated, focused and pressurized, forming a highly concentrated and highly directional impact jet that is ejected from the jet opening. This high-energy jet precisely acts on the convex center area of the bursting diaphragm 204, and the huge dynamic pressure instantly causes the material to fail. At the same time, due to the presence of the central pre-crack 401, the rupture preferentially expands along these predetermined paths, forming a regular and complete flower-shaped break in the diaphragm in a very short time, and no debris is generated.

[0052] After the bursting diaphragm 204 is broken, the high-pressure gas inside the explosion suppression tank 1 rapidly drives the explosion suppression agent, which is ejected from the nozzle at high speed through the channel of the tank connecting flange 205, the regular break of the bursting diaphragm 204, the central channel of the nozzle connecting flange 201 and the nozzle connecting flange 201. The nozzle forms a large area and high concentration of explosion suppression agent cloud, which quickly covers and suppresses the developing initial explosion flame and pressure wave, thereby achieving rapid and efficient explosion suppression.

[0053] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0054] The above-described embodiments are only preferred modes of the present application and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. An internal pressure storage rapid explosion suppression equipment based on electric explosion polymerization pressure film piece trigger, characterized in that, Include: Explosion suppression tank (1), filled with explosion suppression agent and high pressure gas; Electric explosion poly pressure firing type opening mechanism (2), including burst diaphragm (204) and poly pressure firing component (202), the burst diaphragm (204) is sealedly connected at the opening of the explosion suppression tank (1), and the poly pressure firing component (202) includes poly pressure cavity (303), both ends of the poly pressure cavity (303) are respectively provided with jet opening and electric explosion tube (302), and the poly pressure cavity (303) is used to make high pressure gas produced by the electric explosion tube (302) impact the burst diaphragm (204).

2. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 1, characterized in that: The poly pressure firing component (202) further includes a stainless steel shell (301), the electric explosion tube (302) is arranged in the stainless steel shell (301), the top of the poly pressure cavity (303) is provided with an incident port and is communicated with the bottom of the stainless steel shell (301), and the end of the poly pressure cavity (303) away from the jet opening is arranged close to the electric explosion tube (302).

3. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 2, characterized in that: The jet opening of the poly pressure cavity (303) has a smaller inner diameter than the incident port, and the jet opening and the incident port are connected by a curved surface, and a plurality of flow guide ribs (304) are fixedly connected on the curved surface along the axis of the poly pressure cavity (303).

4. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 2, characterized in that: The opening of the explosion suppression tank (1) is fixedly connected with a tank connecting flange (205), the tank connecting flange (205) is provided with a channel, and the burst diaphragm (204) is fixedly connected in the channel of the tank connecting flange (205).

5. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 4, characterized in that: The middle part of the burst diaphragm (204) is provided as a convex structure, the convex structure faces away from the explosion suppression tank (1), the outer side of the burst diaphragm (204) is fixedly connected with a fixing ring, and the end of the channel of the tank connecting flange (205) away from the explosion suppression tank (1) is provided with a placing groove, and the fixing ring is arranged in the placing groove.

6. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 5, characterized in that: A sealing gasket for improving the sealing performance is arranged between the fixing ring and the placing groove.

7. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 5, characterized in that: The side of the tank connecting flange (205) away from the explosion suppression tank (1) is fixedly connected with a poly pressure firing component fixing flange (203), the poly pressure firing component fixing flange (203) abuts against the fixing ring, the stainless steel shell (301) is fixedly connected to the middle part of the poly pressure firing component fixing flange (203), and the poly pressure cavity (303) is in contact with the convex top end of the burst diaphragm (204).

8. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 7, characterized in that: The middle part of the poly pressure firing component fixing flange (203) is fixedly connected with a threaded sleeve through a connecting rod, the outside of the stainless steel shell (301) is provided with a threaded structure, and the stainless steel shell (301) is fixedly connected in the threaded sleeve through the threaded structure.

9. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 1, characterized in that: A plurality of preset cracks (401) are processed in the middle part of the burst diaphragm (204), and the plurality of preset cracks (401) are distributed in a radial manner.

10. The rapid explosion suppression equipment based on the electric explosion pressure wave film piece trigger according to claim 7, characterized in that: The poly pressure firing component fixed flange (203) is fixedly connected with a nozzle connecting flange (201) on the side away from the tank body connecting flange (205), the nozzle connecting flange (201) is communicated with a nozzle on the side away from the poly pressure firing component fixed flange (203), and the nozzle is correspondingly arranged with the bursting diaphragm (204) through the nozzle connecting flange (201).

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