CN113916050A

CN113916050A - Arc discharge energized gas driven two-stage light gas gun

Info

Publication number: CN113916050A
Application number: CN202111216745.8A
Authority: CN
Inventors: 张修路; 胡汉鹏; 何杰; 赵建洲; 刘成安; 伍春; 肖定军; 尤晓建; 袁长迎
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-01-11
Anticipated expiration: 2041-10-19
Also published as: CN113916050B

Abstract

The invention discloses an arc discharge energized gas driven two-stage light gas gun, which comprises: the inside of the detonation cabin is provided with an insulating layer; the left end of the insulating layer is provided with a high-voltage electrode, and the right end of the insulating layer is provided with a diaphragm; and a plurality of detonation tungsten filaments are arranged on the high-voltage electrode. In the invention, the detonation cabin is used as a primary driving device of the whole secondary light gas gun, the high-voltage electrode is arranged in the detonation cabin and matched with a plurality of detonation tungsten filaments, and the key parameter of the detonation pressure of the detonation cabin can be adjusted in multiple and abundant ways by combining with the current regulation and control of the high-voltage electrode, so that the controllability is strong. The detonation pressure of the detonation cabin directly influences the launching speed of the follow-up shot, and the detonation mode provided by the invention not only solves the problems of the detonation modes such as gunpowder detonation, oxyhydrogen detonation, electromagnetic detonation and the like, but also facilitates the speed matching of the follow-up launched shot, and meets various experimental requirements.

Description

Arc discharge energized gas driven two-stage light gas gun

Technical Field

The invention relates to the technical field of ultra-high-speed collision loading experiments, in particular to an arc discharge energized gas driven secondary light gas gun.

Background

The light gas gun is important experimental equipment for simulating an ultra-high-speed impact phenomenon or obtaining a high-temperature and high-pressure state in a high-speed impact mode in a laboratory. Wherein, the secondary light gas gun can emit bullets with various shapes and sizes, and can realize the loading speed of 2 km/s-7 km/s. The common two-stage light gas gun accelerates a piston by high-pressure gas generated by gunpowder combustion, the piston moves at a high speed to compress light gas such as hydrogen or helium in a pump pipe, and then the high-pressure light gas pushes a bullet to reach a preset high speed. The traditional second-level light gas gun drives a piston to move forwards by explosive combustion of gunpowder to compress gas in a pump pipe to a high-temperature and high-pressure state, but the use of the gunpowder makes the auxiliary conditions of a laboratory become complex, special conditions and qualities such as storage, transportation, assembly and fire fighting are needed, and the problems of safety, pollution (explosive detonation products), cleaning of the gun (explosive detonation products pollute the gun pipe and each experiment needs to be cleaned up) and the like are caused, so that the traditional second-level light gas gun has low operating efficiency and high experimental cost. In addition, gunpowder is a strictly regulated material and is difficult to use in many locations.

At present, the second-stage light gas cannon which takes high-pressure gas, hydrogen-oxygen detonation and an electromagnetic cannon as the first-stage drive is developed in China, but the cannons also have respective defects and influence the popularization of the cannons; firstly, a large amount of high-pressure gas is needed to be used for a secondary light gas gun which takes high-pressure gas as primary drive, a high-pressure gas station is needed to be built, the problems of land occupation, noise, safety and the like are caused, the working capacity of the high-pressure gas at normal temperature is not strong, and the final loading bullet speed is not high; secondly, the hydrogen and oxygen detonation secondary light gas cannon takes the mixed gas of hydrogen and oxygen as a driving source, needs a relatively complex gas distribution system, is extremely explosive as fuel, needs strict training and supervision for the use of the gas cannon and limits the popularization of the gas cannon; finally, the electromagnetic gun drives the second-stage light gas gun and is driven by an electromagnetic coil, and the electromagnetic gun is mainly characterized in that a multistage coil is sleeved on the periphery of a pump pipe, and a propelling piece serving as an electromagnetic gun projectile is arranged at the rear end of a piston, so that the electromagnetic gun is complex in structure and expensive in manufacturing cost; because the coil is sleeved on the periphery of the metal pump pipe, the shielding effect of the pump pipe on the electromagnetic field of the coil can cause great waste of energy, meanwhile, the existence of the metal propelling part behind the piston can cause that the gravity center of the piston/propelling part is difficult to maintain on the central line of the pump pipe, and the risk of scratching the inner wall of the pump pipe can be brought in the high-speed movement of the metal propelling part; under the induction of the electromagnetic field of the driving coil, a corresponding electromagnetic field can be induced on the metal gun body including the pump tube, and great interference is brought to the electromagnetic measurement of the projectile speed, the material impact property and the like in the loading process of the air gun.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter. To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an arc discharge energized gas driven two stage light gas cannon, comprising:

the butt-jointed detonating cabin, the secondary driving pump pipe and the launching pipe are sequentially communicated from left to right; an insulating layer is arranged inside the detonation cabin; the left end of the insulating layer is provided with a high-voltage electrode, and the right end of the insulating layer is provided with a diaphragm; a plurality of detonation tungsten filaments are arranged on the high-voltage electrode; a piston is arranged at the left end in the secondary driving pump pipe, and a secondary diaphragm is arranged at the right end; the projectile is arranged at the left end inside the launching tube, and the launching port is arranged at the right end inside the launching tube.

Preferably, an input end of the high-voltage electrode is connected with an impact high-current power supply assembly.

Wherein, preferably, also include a control system; and a plurality of control ports of the control system are in signal connection with the high-impact current power supply assembly.

Preferably, a high-pressure conical section is arranged at the right end of the detonation cabin, and a flange plate II is integrally arranged on the outer wall of the detonation cabin; the flange II is butted with a flange III at the left end of the secondary driving pump pipe through a plurality of bolts; a circular groove I is formed in the end part of the flange plate III; a circular groove II corresponding to the circular groove I is formed in the end part of the conical section of the insulating layer; a diaphragm lantern ring is embedded between the circular groove I and the circular groove II; a plurality of limiting grooves are formed in the inner ring of the diaphragm lantern ring; a plurality of limiting blocks corresponding to the limiting grooves are arranged on the outer wall of the diaphragm in a surrounding manner; the limiting blocks are clamped and embedded into the diaphragm lantern rings to realize detachable connection.

Preferably, the left end of the detonating cabin is provided with a heat insulation blind plate, and the outer wall of the detonating cabin is integrally provided with a flange plate I; a plurality of cable interfaces are arranged on the flange plate I; a base with the size corresponding to that of the flange plate I is arranged at the left end of the insulating layer; the end surface of the base is provided with a T-shaped groove; an insulating tube is arranged at the smaller end of the T-shaped groove, and a junction box is fixedly arranged in the insulating tube; a junction box is arranged in the junction box; the bus bar is fixedly connected with a binding post at the left end of the high-voltage electrode; the bus bar sheet is connected with a plurality of wiring terminals; the wiring terminals are fixedly connected with the cable interfaces through a plurality of cables which are arranged in the insulating layer respectively; an insulating flange is integrally arranged outside the right end of the high-voltage electrode; the insulating flange is embedded in the larger end of the T-shaped groove, and a sealing sleeve is welded in the gap.

Preferably, an electrode rod with external threads is arranged at the right end of the high-voltage electrode and extends out of the base; the end part of the electrode rod is in threaded connection with an assembling ring; a plurality of L-shaped bulges I for hanging the left end of the detonation tungsten filament are arranged on the assembling ring; the inner ring of the assembly ring is provided with an internal thread matched with the external thread; the threaded connection is realized through the screwing of the internal thread and the external thread.

Wherein, preferably, a plurality of staggered blasting grooves are arranged on the diaphragm; a plurality of L-shaped bulges II for hanging the right end of the detonation tungsten filament are arranged on the diaphragm; the plurality of L-shaped bulges II are arranged among the plurality of blasting grooves.

Wherein, preferably, also include a gas distribution device; the detonation cabin and the insulating layer are provided with gas injection holes which penetrate through each other; the gas distribution device comprises a gas storage bin integrally arranged outside the detonation bin; the output end of the gas storage bin is in butt joint with the gas injection port through an electronic exhaust valve; the electronic exhaust valve is in signal connection with a control system.

Wherein, preferably, the outer side of the detonation cabin is provided with a containing box capable of coiling and exploding tungsten wires; a plurality of winding posts are rotatably arranged in the accommodating box; tungsten wire coils with different specifications are respectively wound and configured on the winding posts; the outer part of the containing box is provided with a plurality of wire outlets corresponding to the plurality of winding posts, and the upper ends of the wire outlets are provided with knife switches for cutting off tungsten filaments.

The invention at least comprises the following beneficial effects:

according to the invention, the detonation cabin is used as a primary driving device of the whole secondary light gas gun, the high-voltage electrode is arranged in the detonation cabin to be matched with a plurality of detonation tungsten filaments, and then the current regulation and control of the high-voltage electrode are matched, so that the key parameter of the detonation pressure of the detonation cabin can be adjusted in multiple and rich ways, the controllability is strong, the detonation pressure of the detonation cabin directly influences the initial speed of subsequent shot launching, and the detonation mode of the high-voltage electrode matched with the detonation tungsten filaments not only solves the problems of the detonation modes such as gunpowder detonation, oxyhydrogen detonation, electromagnetic detonation and the like, but also facilitates the speed matching of the subsequently launched shots, and meets various experimental requirements. The device has the advantages of easily obtained required parts, low cost, easy processing and assembly, obvious advantage of taking the detonation mode as the primary driving detonation mode of the light gas gun, applicability and strong practicability, and is suitable for replacing primary driving detonation devices of multi-stage light gas guns with other specifications. Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a general block diagram of the present invention;

FIG. 2 is a control flow diagram of the present invention;

FIG. 3 is a diagram of the high voltage electrode on the left side of the insulating layer and its connection structure according to the present invention;

FIG. 4 is a diagram of the diaphragm and its connection structure at the right end of the insulating layer according to the present invention;

FIG. 5 is a view showing the connection structure of the diaphragm and the diaphragm sleeve ring according to the present invention;

FIG. 6 is a view of the mounting ring of the present invention;

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof. It is to be understood that in the description of the present invention, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are used only for convenience in describing the present invention and for simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically. Further, in the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature.

Fig. 1-6 illustrate one implementation of the present invention, including:

the detonation cabin 1, the secondary driving pump pipe 6 and the launching pipe 7 which are butted are sequentially communicated from left to right; an insulating layer 2 is arranged inside the detonation cabin 1; the left end of the insulating layer 2 is provided with a high-voltage electrode 3, and the right end of the insulating layer is provided with a diaphragm 4; a plurality of detonation tungsten filaments 5 are arranged on the high-voltage electrode 3; a piston 61 is arranged at the left end in the secondary driving pump pipe 6, and a secondary diaphragm 62 is arranged at the right end; the left end inside the launching tube 7 is provided with a projectile 71, and the right end is provided with a launching port 72;

the working principle is as follows:

when a second-stage light gas gun is used for carrying out an ultra-high-speed collision loading experiment, gas with certain pressure is injected into a detonation cabin 1 serving as a first-stage driving device; the high-voltage electrode 3 is connected through an external power supply, then the high-voltage electrode 3 supplies power to the plurality of detonation tungsten filaments 5, the detonation tungsten filaments are enabled to generate ultrahigh temperature until the detonation tungsten filaments explode due to arc discharge, huge energy is given to gas in the whole detonation cabin 1 during explosion, so that the temperature and the pressure of the gas in the whole detonation cabin 1 rise instantly, after the rupture pressure of the diaphragm 4 is reached, the diaphragm 4 is crushed, high-temperature and high-pressure gas is released into the secondary driving pump pipe 6 immediately, the piston 61 is pushed to continuously compress light gas in the secondary driving pump pipe 6 until the secondary diaphragm 62 is ruptured, and then the projectile 71 in the launching pipe 7 accelerates to move rightwards under the driving of the high-temperature and high-pressure light gas released after the secondary diaphragm 62 is ruptured, so that the projectile reaches a preset high speed and is ejected from the launching port 72.

In the technical scheme, the high-voltage electrode 3 is arranged in the detonation cabin 1 and matched with a plurality of detonation tungsten wires 5, so that the detonation pressure in the detonation cabin 1 is easier to regulate and control: firstly, different numbers and diameters of the detonation tungsten filaments 5 can be installed according to different experimental requirements, when a high peak pressure capable of instantly blasting is required to be obtained, a plurality of detonation tungsten filaments 5 with the same diameter can be configured, and the plurality of detonation tungsten filaments 5 can be blasted at the same time, so that the required high peak pressure is obtained; when the time requirement for maintaining the detonation pressure of the detonation cabin 1 exists, the pressure of the whole detonation cabin 1 can be maintained within a certain time by configuring a plurality of detonation tungsten filaments 5 with different diameters and sequentially exploding the detonation tungsten filaments according to a certain time sequence; and the current regulation and control of the high-voltage electrode 3 are matched, so that the key parameter of the detonation pressure of the detonation cabin 1 can be adjusted in multiple and abundant ways, and the controllability is strong. Because the initiation pressure of the initiation chamber 1 directly influences the initial velocity of the subsequent shot 71, the initiation mode of the high-voltage electrode 3 matched with the initiation tungsten wire 5 solves the problems of initiation modes such as gunpowder initiation, oxyhydrogen detonation initiation, electromagnetic initiation and the like, and simultaneously facilitates the velocity matching of the subsequently launched shots, thereby meeting various experimental requirements. The device has the advantages of easily obtained required parts, low cost, easy processing and assembly, obvious advantage of taking the detonation mode as the primary driving detonation mode of the light gas gun, applicability and strong practicability, and is suitable for replacing the primary driving detonation device of multi-stage light gas guns with other specifications.

In the above technical solution, the input end of the high voltage electrode 3 is connected to an impulse high current power supply assembly 31. The benefit that sets up like this is that the high current power supply module 31 modularization degree of strikeing is high, can assemble according to the demand of different detonating energies to supply power to one or many detonating tungsten filaments 5, in order to satisfy the experiment demand.

In the above technical solution, the system further comprises a control system 14; a plurality of control ports of the control system 14 are in signal communication with a high amperage power supply assembly 31. The advantage of this arrangement is that the control system 14 can regulate and control the current energy loaded on the high voltage electrode 3 by the impact large current power supply assembly 31 more stably and accurately, so as to regulate and control the energy of the plurality of detonation tungsten filaments 5, thereby achieving the purpose of regulating and controlling the initial detonation pressure in the detonation chamber 1.

In the technical scheme, a high-pressure conical section 41 is arranged at the right end of the detonation cabin 1, and a flange plate II 42 is integrally arranged on the outer wall of the detonation cabin; the flange II 42 is butted with a flange III 63 at the left end of the secondary driving pump pipe 6 through a plurality of bolts; a circular groove I64 is formed in the end part of the flange plate III 63; a circular groove II 43 corresponding to the circular groove I64 is arranged at the end part of the conical section of the insulating layer 2; a diaphragm lantern ring 44 is embedded between the circular groove I64 and the circular groove II 43; a plurality of limiting grooves 441 are formed in the inner ring of the diaphragm lantern ring 44; a plurality of limiting blocks 442 corresponding to the limiting grooves are arranged on the outer wall of the diaphragm 4 in a surrounding manner; the stop blocks 442 are snap-fit into the diaphragm collar 44 to provide a releasable connection. The benefit that sets up like this is that, the gomphosis can be stabilized to the diaphragm lantern ring 44 and install between I64 of circular slot and II 43 of circular slot, can regard as the base of diaphragm 4, and is firm stable, has guaranteed the stability in the experimentation, through the gomphosis of a plurality of spacing grooves 441 and a plurality of stopper 442, has realized filling fast and changing of diaphragm 4, improves the assembly efficiency of device.

In the technical scheme, the left end of the detonating cabin 1 is provided with a heat insulation blind plate 32, and the outer wall of the detonating cabin is integrally provided with a flange plate I33; a plurality of cable interfaces 34 are arranged on the flange plate I33; the left end of the insulating layer is provided with a base 35 corresponding to the size of the flange plate I33; a T-shaped groove 36 is formed in the end face of the base 35; an insulating tube 37 is arranged at the smaller end of the T-shaped groove 36, and a junction box 38 is fixedly arranged in the insulating tube 37; a junction plate 381 is arranged inside the junction box 38; the bus bar 381 is fixedly connected with a binding post at the left end of the high-voltage electrode 3; the bus bar 381 is connected with a plurality of terminals 382; the plurality of terminals 382 are fixedly connected to the plurality of cable ports 34 via a plurality of cables 21 embedded in the insulating layer 2, respectively; an insulating flange 39 is integrally arranged outside the right end of the high-voltage electrode 3; the insulating flange 39 is embedded in the larger end of the T-shaped groove 36, and a sealing sleeve 391 is welded in the gap. The advantage of this arrangement is that the heat-insulating blind plate 32 can ensure the sealing performance of the left end of the whole detonating cabin 1; the high-voltage electrode 3 is used for butting the junction box 38, and then a plurality of cable interfaces 34 which can be rapidly plugged are matched, so that an external power supply can be conveniently connected and pulled out, the modularization degree is high, and the assembly is easier; the insulating flange 39 at the right end of the high-voltage electrode 3 is welded with the sealing sleeve 391 to enable the connection to be more stable and stronger in sealing performance, and leakage of high-voltage gas in the experimental process can be prevented.

In the above technical solution, the right end of the high voltage electrode 3 is provided with an electrode rod 301 with external threads, and extends out of the base 35; the end part of the electrode rod 301 is connected with an assembling ring 302 in a threaded manner; a plurality of L-shaped bulges I51 used for hanging the left end of the initiation tungsten wire 5 are arranged on the assembling ring 302; an inner ring of the assembling ring 302 is provided with an inner thread matched with the outer thread; the threaded connection is realized through the screwing of the internal thread and the external thread. The advantage that sets up like this is through assembling many tungsten filaments 5 on L type is protruding I51 of collar in advance, and direct threaded connection is at the tip of electrode rod 301 again, and it is more convenient to load and unload and adjust, has improved experiment assembly efficiency.

In the above technical solution, a plurality of staggered blasting slots 401 are arranged on the diaphragm 4; a plurality of L-shaped bulges II 402 used for hanging the right end of the initiating tungsten wire 5 are arranged on the membrane 401; the plurality of L-shaped protrusions II 402 are arranged among the plurality of blasting grooves 401. The arrangement has the advantages that in the operation process, the L-shaped protrusions II are more convenient to butt-joint the right ends of the detonation tungsten filaments 5, the stretching and extending effects are achieved, and the detonation effect is prevented from being influenced due to the fact that the detonation tungsten filaments 5 are mutually wound in the assembling process; when the membrane 4 is broken, the plurality of rupture grooves 401 make the membrane 4 easier to break from the center, then a plurality of membrane flaps are formed to bend towards the outer side, and the integrity of the whole membrane is better.

In the above technical solution, the device further comprises a gas distribution device; the detonation cabin 1 and the insulating layer 2 are provided with gas injection holes 11 which penetrate through each other; the gas distribution device comprises a gas storage bin 12 integrally arranged outside the detonation bin 1; the output end of the gas storage bin 12 is in butt joint with the gas injection port 11 through an electronic exhaust valve 13; the electronic exhaust valve 13 is in signal connection with a control system 14. The benefit that sets up like this is, before the experiment begins, through electron discharge valve 13 with the gas injection hole 11 in the gas storage bin 12 in, the realization carries out more accurate safe automatic control to the gas of preinjection in the initial explosion storehouse 1, and, the gas quantity of preinjection in the initial explosion storehouse 1 also is one of the factors that influence detonation pressure, according to our different experimental demands, after confirming the quantity and the specification of detonating tungsten filament 5, control system 14 can be to the current energy of loading on high voltage electrode 3, the gas injection volume is carried out the automatic matching through the procedure and is predetermineeing in the initial explosion storehouse 1, let whole device degree of automation higher, the functionality and the expansibility of device have been improved.

In the technical scheme, the outer side of the detonation cabin is provided with a containing box capable of coiling and exploding tungsten wires 5; a plurality of winding posts are rotatably arranged in the accommodating box; tungsten wire coils with different specifications are respectively wound and configured on the winding posts; the outer part of the containing box is provided with a plurality of wire outlets corresponding to the plurality of winding posts, and the upper ends of the wire outlets are provided with knife switches for cutting off tungsten filaments. The benefit that sets up like this is, through holding many wrapping posts and a plurality of plug-in strip on the case, realizes freely taking and tailor multiple specification tungsten filament, has promoted the operating efficiency of experiment preparation operation.

The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art. While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. An arc discharge energized gas driven two stage light gas gun comprising:

2. The arc discharge energized gas driven two stage light gas gun of claim 1, wherein said high voltage electrode has a surge current power supply connected to its input.

3. An arc discharge energized gas driven two stage light gas cannon of claim 1 further comprising a control system; and a plurality of control ports of the control system are in signal connection with the high-impact current power supply assembly.

4. The arc discharge energized gas driven two-stage light gas gun as claimed in claim 1, wherein a high-voltage conical section is arranged at the right end of the detonation chamber, and a flange II is integrally arranged on the outer wall; the flange II is butted with a flange III at the left end of the secondary driving pump pipe through a plurality of bolts; a circular groove I is formed in the end part of the flange plate III; a circular groove II corresponding to the circular groove I is formed in the end part of the conical section of the insulating layer; a diaphragm lantern ring is embedded between the circular groove I and the circular groove II; a plurality of limiting grooves are formed in the inner ring of the diaphragm lantern ring; a plurality of limiting blocks corresponding to the limiting grooves are arranged on the outer wall of the diaphragm in a surrounding manner; the limiting blocks are clamped and embedded into the diaphragm lantern rings to realize detachable connection.

5. The arc discharge energized gas driven two-stage light gas gun as claimed in claim 1, wherein the left end of the detonation chamber is provided with a heat insulation blind plate, and the outer wall is integrally provided with a flange I; a plurality of cable interfaces are arranged on the flange plate I; a base with the size corresponding to that of the flange plate I is arranged at the left end of the insulating layer; the end surface of the base is provided with a T-shaped groove; an insulating tube is arranged at the smaller end of the T-shaped groove, and a junction box is fixedly arranged in the insulating tube; a junction box is arranged in the junction box; the bus bar is fixedly connected with a binding post at the left end of the high-voltage electrode; the bus bar sheet is connected with a plurality of wiring terminals; the wiring terminals are fixedly connected with the cable interfaces through a plurality of cables which are arranged in the insulating layer respectively; an insulating flange is integrally arranged outside the right end of the high-voltage electrode; the insulating flange is embedded in the larger end of the T-shaped groove, and a sealing sleeve is welded in the gap.

6. The arc discharge energized gas driven two stage light gas cannon of claim 5 in which the right end of the high voltage electrode is provided with an externally threaded electrode stem extending from the base; the end part of the electrode rod is in threaded connection with an assembling ring; a plurality of L-shaped bulges I for hanging the left end of the detonation tungsten filament are arranged on the assembling ring; the inner ring of the assembly ring is provided with an internal thread matched with the external thread; the threaded connection is realized through the screwing of the internal thread and the external thread.

7. An arc discharge energized gas driven two stage light gas cannon of claim 1 in which a plurality of staggered burst slots are provided in the diaphragm; a plurality of L-shaped bulges II for hanging the right end of the detonation tungsten filament are arranged on the diaphragm; the plurality of L-shaped bulges II are arranged among the plurality of blasting grooves.

8. An arc discharge energized gas driven two stage light gas cannon of claim 1 further comprising a gas distribution means; the detonation cabin and the insulating layer are provided with gas injection holes which penetrate through each other; the gas distribution device comprises a gas storage bin integrally arranged outside the detonation bin; the output end of the gas storage bin is in butt joint with the gas injection port through an electronic exhaust valve; the electronic exhaust valve is in signal connection with a control system.

9. An arc discharge energized gas driven two stage light gas cannon of claim 1 in which the outside of the popping chamber is provided with a containment box that can wind up a bursting tungsten wire; a plurality of winding posts are rotatably arranged in the accommodating box; tungsten wire coils with different specifications are respectively wound and configured on the winding posts; the outer part of the containing box is provided with a plurality of wire outlets corresponding to the plurality of winding posts, and the upper ends of the wire outlets are provided with knife switches for cutting off tungsten filaments.