Explosion suppression testing device

Abstract

The invention belongs to the technical field of explosion suppression experiments, and particularly relates to an explosion suppression testing device which comprises an ignition electrode arranged in an explosion area and electrically connected with an ignition controller, the ignition controller is electrically connected with a control computer, and the ignition electrode is controlled by the control computer and the ignition controller to ignite an explosion source; the explosion suppression device is arranged at the top of the explosion area and is used for suppressing explosion after the explosion source is detonated; the explosion suppression device is filled with a water-based explosion suppression material, a powder explosion suppression material or a gas explosion suppression material; the explosion source is one of a solid explosive, a liquid explosive or a dust explosive. The control computer can control the ignition controller to control the ignition electrode to ignite the explosion source, after explosion occurs, the explosion suppression device is started to spray the explosion suppression material to extinguish the explosion source, and data analysis equipment such as a high-speed camera is erected on one side of the device, so that the test process is completely recorded, and performance analysis of the explosion suppression material on the explosion source is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of explosion suppression experiments, and in particular relates to an explosion suppression test device. Background Art

[0002] In scientific research, for dangerous chemicals with high risks and fast burning speed (explosives, solid and liquid flammable materials, lithium-ion batteries, etc.), it is necessary to conduct experiments to study the inhibitory effects of different types of inhibitors and different dosages on various types of explosions, eliminate possible explosions in the bud, prevent the expansion of harmful consequences, ensure the safety of personnel and property, and improve the inherent safety of production.

[0003] In explosion tests, a rapid explosion suppression device is required to quickly suppress the initial fire of materials such as flat, piled, dust, and explosive columns in open spaces. At the same time, due to the large differences in the properties of different inhibitors and the extremely fast reaction speed of the explosion field, the response time of the same explosion suppression device will cause a large error. In summary, we propose an explosion suppression test device. Summary of the invention

[0004] The object of the present invention is to provide an explosion suppression testing device to solve the above problems.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] An explosion suppression test device, comprising:

[0007] An ignition electrode is arranged in the explosion area, the ignition electrode is electrically connected to an ignition controller, the ignition controller is electrically connected to a control computer, and the ignition electrode is controlled by the control computer and the ignition controller to ignite the explosion source;

[0008] An explosion suppression device is arranged at the top of the explosion area and is used to suppress explosion after the explosion source is detonated; the explosion suppression device is filled with water-based explosion suppressants, powder explosion suppressants or gas explosion suppressants;

[0009] The explosion source is one of solid explosives, liquid explosives or dust explosives.

[0010] Optionally, the explosion suppression device includes:

[0011] A storage tank, fixed on a bracket and placed in the explosion area;

[0012] A high-pressure supply unit is connected to the middle of the storage tank and is used to generate high pressure to drive the explosion-suppressing material in the storage tank to move;

[0013] A material temporary storage component, the feed end of which is connected to the discharge end of the storage tank, and the explosion suppression material in the storage tank is moved to the discharge end of the material temporary storage component by the pressure increase of the high-pressure supply part;

[0014] A pressure relief pipe is connected and arranged on one side of the material temporary storage component, and an outlet of the pressure relief pipe is connected to a pressure relief valve;

[0015] A discharge pipe, the feed end of which is connected to the discharge end of the material temporary storage assembly, the discharge pipe is connected to a nozzle through a quick release valve, the nozzle faces the explosion source, and the opening and closing of the quick release valve is used to release the explosion suppressant;

[0016] An infrared sensor is fixed on the outer wall of the discharge pipe and arranged close to the nozzle. The infrared sensor is used to determine whether the fluid passes through. The infrared sensor is connected to the quick release valve signal.

[0017] Optionally, the material temporary storage assembly includes a shell, the feed end at the top of the shell is connected to the discharge end of the storage tank, the discharge end at the bottom of the shell is connected to the feed end of the discharge pipe, and one side of the top of the shell is connected to the inlet of the pressure relief pipe;

[0018] The shell body is provided with a temporary storage part for water-based explosion suppressants or a temporary storage part for powder explosion suppressants according to the type of the explosion suppressants.

[0019] Optionally, the temporary storage part of the water-based explosion suppressant includes a plurality of vertically arranged connecting branch pipes, the plurality of connecting branch pipes are arranged in a matrix, the inlets of the plurality of connecting branch pipes are connected to the discharge end of the same storage tank, the bottoms of the plurality of connecting branch pipes are connected to the liquid inlet end of the same cache cavity, the cache cavity is arranged at the bottom of the shell, and the liquid outlet end of the cache cavity is connected to the feed end of the discharge pipe.

[0020] Optionally, the powder explosion suppression material temporary storage unit includes a vibration bin, the feed end of the vibration bin is located directly below the discharge end of the storage tank, and the feed end of the vibration bin is connected to the discharge end of the storage tank;

[0021] The vibration bin is vertically slidably disposed in the shell;

[0022] The vibration bin is transmission-connected with a driving part, and the driving part is used to move the vibration bin up and down;

[0023] The vibration bin is connected to a vibration part in a transmission manner, and the vibration part is used for vibrating and mixing the powder explosion suppression material in the vibration bin;

[0024] A bin door is provided at the discharge end at the bottom of the vibration bin, and the bin door is communicated with the feed end of the discharge pipe. The opening and closing of the bin door is used to control the movement of the material in the vibration bin toward the discharge pipe.

[0025] Optionally, the driving unit includes sliders fixed on both sides of the vibration bin, one of the sliders is provided with a sliding rod for vertical sliding, the sliding rod is fixed in the shell, and the other slider is threadedly connected with a threaded rod, the threaded rod is rotatably arranged in the shell, and one end of the threaded rod is transmission-connected to a rotating unit.

[0026] Optionally, the rotating part includes a motor, a fixed end of the motor is fixedly connected to the inner wall of the shell, and an output shaft of the motor is axially connected to one end of the threaded rod.

[0027] Optionally, the vibration part includes an ultrasonic generator fixed on both sides of the vibration bin, the ultrasonic generator is a piezoelectric ceramic, and the ultrasonic generator vibrates to drive the vibration bin to resonate after being energized.

[0028] Optionally, when the explosion source is a dust explosion, the explosion area is wrapped in a closed space formed by a plastic film, the plastic film is supported by a metal bracket to form a cubic structure, and the ignition electrode is arranged in the closed space;

[0029] One side of the bottom of the enclosed space is connected to the discharge end of the powder spraying valve, the feed end of the powder spraying valve is connected to the discharge end of the powder storage bin, and the feed end of the powder storage bin is connected to the exhaust end of the air compressor;

[0030] The other side of the bottom of the enclosed space is connected to a vacuum pumping part.

[0031] Optionally, the vacuum pumping part includes one end of a vacuum pumping valve connected to the bottom of the enclosed space, and the other end of the vacuum pumping valve is connected to a vacuum pump.

[0032] Compared with the prior art, the present invention has the following advantages and technical effects:

[0033] When in use, place the explosion source in the explosion area. The control computer can control the ignition controller to control the ignition electrode to ignite the explosion source. After the explosion occurs, the explosion suppression device is started to spray explosion suppression materials to extinguish the explosion source. By setting up high-speed cameras and other data analysis equipment on one side of the device, the test process can be fully recorded to achieve performance analysis of the explosion source by the explosion suppression materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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 are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0035] Figure 1 It is a schematic diagram of the structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the present invention during dust explosion;

[0037] Figure 3 It is a schematic diagram of the structure of the explosion suppression device of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the temporary storage unit of water-based explosion suppression material of the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of the temporary storage part of the powder explosion suppression material of the present invention;

[0040] Figure 6 For the present invention Figure 5 A partial enlarged view of the middle part;

[0041] Among them, 1. explosion area; 2. explosion suppression device; 3. powder spray valve; 4. ignition electrode; 5. ignition controller; 6. control computer; 7. vacuum pump; 8. vacuum valve; 9. powder storage bin; 10. air compressor; 201. storage tank; 202. connecting pipe; 203. inert gas cylinder; 204. solenoid valve; 205. air pressure sensor; 206. connecting flange; 207. material temporary storage component; 208. pressure relief pipe; 209. pressure relief valve; 210. discharge pipe; 211. quick release valve; 212. nozzle; 213. infrared sensor; 2071. shell; 2072. connecting branch pipe; 2073. slide rod; 2074. bin door; 2075. threaded rod; 2076. slider; 2077. ultrasonic generator; 2078. vibration bin; 2079. jacking pipe. DETAILED DESCRIPTION

[0042] 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.

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Reference Figures 1 to 6 The present invention discloses an explosion suppression test device, comprising:

[0045] An ignition electrode 4 is arranged in the explosion area 1. The ignition electrode 4 is electrically connected to an ignition controller 5. The ignition controller 5 is electrically connected to a control computer 6. The ignition electrode 4 is controlled by the control computer 6 and the ignition controller 5 to ignite the explosion source.

[0046] The explosion suppression device 2 is arranged at the top of the explosion area 1 and is used to suppress explosion after the explosion source is detonated; the explosion suppression device 2 is filled with water-based explosion suppressants, powder explosion suppressants or gas explosion suppressants;

[0047] The explosion source is one of solid explosives, liquid explosives or dust explosives.

[0048] When in use, the explosion source is placed in the explosion area 1. The ignition controller 5 can be controlled by the control computer 6 to control the ignition electrode 4 to ignite the explosion source. After the explosion occurs, the explosion source is extinguished by starting the explosion suppression device 2 to spray the explosion suppressant. By setting up data analysis equipment such as high-speed cameras on one side of the device, the test process is completely recorded to achieve performance analysis of the explosion source by the explosion suppressant.

[0049] As an optional implementation, the explosion suppression device 2 includes:

[0050] The storage tank 201 is fixed on a bracket and placed in the explosion area 1;

[0051] A high-pressure supply unit is connected to the middle of the storage tank 201 and is used to generate high pressure to drive the explosion-suppressing material in the storage tank 201 to move;

[0052] The material temporary storage component 207 has a feed end connected to the discharge end of the storage tank 201, and the explosion suppression material in the storage tank 201 is moved to the discharge end of the material temporary storage component 207 through the pressure increase of the high-pressure supply part;

[0053] A pressure relief pipe 208 is connected to one side of the material temporary storage component 207, and the outlet of the pressure relief pipe 208 is connected to a pressure relief valve 209;

[0054] The discharge pipe 210, the feed end of which is connected to the discharge end of the material temporary storage assembly 207, is connected to a nozzle 212 through a quick release valve 211, and the nozzle 212 faces the explosion source. The opening and closing of the quick release valve 211 is used to release the explosion suppressant;

[0055] The infrared sensor 213 is fixed on the outer wall of the discharge pipe 210 and is arranged close to the nozzle 212. The infrared sensor 213 is used to determine whether the fluid passes through; the infrared sensor 213 is connected to the quick release valve 211 by signal.

[0056] As an optional embodiment, the material temporary storage component 207 includes a shell 2071, the feed end at the top of the shell 2071 is connected to the discharge end of the storage tank 201, the discharge end at the bottom of the shell 2071 is connected to the feed end of the discharge pipe 210, and one side of the top of the shell 2071 is connected to the inlet of the pressure relief pipe 208;

[0057] The housing 2071 is provided with a temporary storage portion for water-based explosion suppressants or a temporary storage portion for powder explosion suppressants according to the type of the explosion suppressants.

[0058] When in use, the storage tank 201 is fixed on the bracket through the connecting flange 206, and the bracket is placed in the explosion area 1; the storage tank 201 is filled with one of the water-based explosion suppressants, powder explosion suppressants or gas explosion suppressants required for explosion suppression.

[0059] When the explosion suppressant is a gas explosion suppressant, the storage tank 201 is sealed, its feed end is connected to the gas explosion suppressant storage tank, and the discharge end of the storage tank 201 is connected to the discharge pipe 210 .

[0060] When the explosion suppressant is a water-based explosion suppressant or a powder explosion suppressant, it is necessary to select a suitable water-based explosion suppressant temporary storage unit or a powder explosion suppressant temporary storage unit.

[0061] The high-pressure supply part includes a connecting pipe 202, the middle part of the connecting pipe 202 is connected to the middle part of the storage tank 201, one end of the connecting pipe 202 is connected to the outlet end of the solenoid valve 204, and the inlet end of the solenoid valve 204 is connected to the inert gas cylinder 203, and the injection pressure can be provided by the inert gas cylinder 203. The other end of the connecting pipe 202 is connected to the air pressure sensor 205 for monitoring the injection pressure.

[0062] The pressure relief pipe 208 and the pressure relief valve 209 are used to release the pressure in the shell 2071 after the experiment is completed.

[0063] The infrared sensor 213 is used to determine whether the fluid passes through, and feeds back the data to the controller, which controls the opening and closing of the quick release valve 211.

[0064] Specifically, when the infrared sensor 213 detects the passage of fluid, it feeds back the data to the controller, which is preferably a computer. The controller records and adjusts the opening time of the quick release valve 211.

[0065] As an optional embodiment, the temporary storage part of the water-based explosion suppressant includes a plurality of vertically arranged connecting branch pipes 2072, and the plurality of connecting branch pipes 2072 are arranged in a matrix. The inlets of the plurality of connecting branch pipes 2072 are connected to the discharge end of the same storage tank 201, and the bottoms of the plurality of connecting branch pipes 2072 are connected to the liquid inlet end of the same cache cavity. The cache cavity is arranged at the bottom of the shell 2071, and the liquid outlet end of the cache cavity is connected to the feed end of the discharge pipe 210.

[0066] When water-based explosion suppressants are selected, a plurality of connecting branch pipes 2072 arranged in a matrix are provided in the shell 2071, the tops of the plurality of connecting branch pipes 2072 are connected to the storage tank 201, the bottoms of the plurality of connecting branch pipes 2072 are connected to the liquid inlet end of the same buffer chamber, the buffer chamber is provided at the bottom of the shell 2071, the liquid outlet end of the buffer chamber is connected to the feed end of the discharge pipe 210, and the communicating vessel principle is utilized to make the liquid level height of the water-based explosion suppressants in the plurality of connecting branch pipes 2072 consistent. By such an arrangement, the high pressure at the tops of the plurality of connecting branch pipes 2072 can be evenly distributed, so that the water-based explosion suppressants in each connecting branch pipe 2072 can move quickly to the discharge pipe 210 under the action of high pressure, and can be released through the quick release valve 211.

[0067] As an optional embodiment, the powder explosion suppression material temporary storage unit includes a vibration bin 2078, the feed end of the vibration bin 2078 is located directly below the discharge end of the storage tank 201, and the feed end of the vibration bin 2078 is connected to the discharge end of the storage tank 201;

[0068] The vibration bin 2078 is vertically slidably disposed in the housing 2071;

[0069] The vibration bin 2078 is connected to a driving unit for moving the vibration bin 2078 up and down;

[0070] The vibration bin 2078 is connected to a vibration unit for vibrating and mixing the powder explosion suppressants in the vibration bin 2078;

[0071] A bin door 2074 is provided at the bottom discharge end of the vibration bin 2078 , and the bin door 2074 is connected to the feed end of the discharge pipe 210 . The opening and closing of the bin door 2074 is used to control the movement of the material in the vibration bin 2078 toward the discharge pipe 210 .

[0072] When powder explosion suppressants are selected, firstly, the vibration bin 2078 is located directly below the discharge end of the storage tank 201 and connected to the discharge end of the storage tank 201 through the driving unit, so that all the powder explosion suppressants are moved into the vibration bin 2078, and then the vibration bin 2078 is moved downward through the driving unit, so that the discharge end of the vibration bin 2078 is connected to the discharge pipe 210.

[0073] During the movement, the vibration part causes the powder explosion suppressant in the vibration bin 2078 to vibrate and mix evenly and maintain a stable bulk density.

[0074] A top pipe 2079 is coaxially fixed to the top of the feed end of the discharge pipe 210, and the bin door 2074 is hinged to the discharge end of the vibration bin 2078 by a torsion spring. When the vibration bin 2078 moves to the bottom, the top pipe 2079 lifts the bin door 2074 and extends into the vibration bin 2078, so that the vibration bin 2078 is connected with the discharge pipe 210. When the vibration bin 2078 is separated from the discharge pipe 210, the bin door 2074 is automatically closed under the action of the torsion spring.

[0075] As an optional embodiment, the driving part includes sliders 2076 fixed on both sides of the vibration chamber 2078, one of the sliders 2076 is vertically slid with a slide rod 2073, the slide rod 2073 is fixed in the shell 2071, and the other slider 2076 is threadedly connected with a threaded rod 2075, the threaded rod 2075 is rotatably set in the shell 2071, and one end of the threaded rod 2075 is transmission-connected to a rotating part.

[0076] As an optional implementation, the rotating part includes a motor, a fixed end of the motor is fixedly connected to the inner wall of the housing 2071 , and an output shaft of the motor is axially connected to one end of the threaded rod 2075 .

[0077] The threaded rod 2075 is driven to rotate by a motor, and one of the sliders 2076 can be driven to move up and down under the action of the thread, while the other slider 2076 slides on the slide rod 2073.

[0078] As an optional implementation, the vibration part includes ultrasonic generators 2077 fixed on both sides of the vibration bin 2078. The ultrasonic generator 2077 is a piezoelectric ceramic. When the ultrasonic generator 2077 is powered on, the vibration drives the vibration bin 2078 to resonate.

[0079] By energizing the ultrasonic generator 2077 to generate vibration, the vibration bin 2078 is made to resonate, thereby continuously mixing the powder explosion suppression material inside the vibration bin 2078 and maintaining a stable bulk density.

[0080] As an optional embodiment, when the explosion source is a dust explosion, the explosion area 1 is wrapped in a closed space formed by a plastic film, the plastic film is supported by a metal bracket to form a cubic structure, and the ignition electrode 4 is arranged in the closed space;

[0081] One side of the bottom of the enclosed space is connected to the discharge end of the powder spraying valve 3, the feed end of the powder spraying valve 3 is connected to the discharge end of the powder storage bin 9, and the feed end of the powder storage bin 9 is connected to the exhaust end of the air compressor 10;

[0082] The other side of the bottom of the enclosed space is connected to a vacuum pumping part.

[0083] As an optional implementation, the vacuum pumping part includes one end of a vacuum pumping valve 8 connected to the bottom of the enclosed space, and the other end of the vacuum pumping valve 8 is connected to the vacuum pump 7.

[0084] When dealing with dust explosion, firstly, the enclosed space is evacuated through the vacuum pump 7 and the vacuum valve 8, and at the same time, the air compressor 10 is turned on to pressurize the dust in the powder storage bin 9. After closing the air compressor 10, the powder spraying valve 3 is opened. Under the dual effects of the pressure in the powder storage bin 9 and the negative pressure in the enclosed space, the dust in the powder storage bin 9 is quickly and evenly distributed, forming an environment for dust explosion.

[0085] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 therefore should not be understood as a limitation on the present invention.

[0086] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An explosion suppression test device, characterized in that: include: An ignition electrode (4) is arranged in the explosion area (1), the ignition electrode (4) is electrically connected to an ignition controller (5), the ignition controller (5) is electrically connected to a control computer (6), and the ignition electrode (4) is controlled by the control computer (6) and the ignition controller (5) to ignite the explosion source; An explosion suppression device (2) is arranged at the top of the explosion area (1) and is used to suppress explosion after the explosion source is detonated; the explosion suppression device (2) is filled with a water-based explosion suppressant, a powder explosion suppressant or a gas explosion suppressant; The explosion source is one of solid explosives, liquid explosives or dust explosives.

2. An explosion suppression test device according to claim 1, characterized in that: The explosion suppression device (2) comprises: A material storage tank (201) is fixed on a bracket and placed in the explosion area (1); A high-pressure supply unit, connected to the middle of the storage tank (201), and used to generate high pressure to drive the explosion-suppressing material in the storage tank (201) to move; A material temporary storage component (207), the feed end of which is connected to the discharge end of the storage tank (201), and the explosion-suppressing material in the storage tank (201) is moved to the discharge end of the material temporary storage component (207) through the pressurization of the high-pressure supply unit; A pressure relief pipe (208) is connected to one side of the material temporary storage component (207), and the outlet of the pressure relief pipe (208) is connected to a pressure relief valve (209); A discharge pipe (210), the feed end of which is connected to the discharge end of the material temporary storage component (207), the discharge pipe (210) is connected to a nozzle (212) via a quick release valve (211), the nozzle (212) faces the explosion source, and the opening and closing of the quick release valve (211) is used to release the explosion suppressant; An infrared sensor (213) is fixed on the outer wall of the discharge pipe (210) and is arranged close to the nozzle (212). The infrared sensor (213) is used to determine whether the fluid passes through. The infrared sensor (213) is connected to the quick release valve (211) by signal.

3. An explosion suppression test device according to claim 2, characterized in that: The material temporary storage component (207) comprises a shell (2071), the feed end at the top of the shell (2071) is connected to the discharge end of the storage tank (201), the discharge end at the bottom of the shell (2071) is connected to the feed end of the discharge pipe (210), and one side of the top of the shell (2071) is connected to the inlet of the pressure relief pipe (208); The housing (2071) is provided with a temporary storage portion for water-based explosion suppressants or a temporary storage portion for powdered explosion suppressants according to the type of the explosion suppressants.

4. An explosion suppression test device according to claim 3, characterized in that: The temporary storage section for water-based explosion suppressants comprises a plurality of vertically arranged connecting branch pipes (2072), wherein the connecting branch pipes (2072) are arranged in a matrix, wherein the inlets of the connecting branch pipes (2072) are connected to the discharge end of the same storage tank (201), and the bottoms of the connecting branch pipes (2072) are connected to the liquid inlet end of the same buffer cavity, wherein the buffer cavity is arranged at the bottom of the shell (2071), and the liquid outlet end of the buffer cavity is connected to the feed end of the discharge pipe (210).

5. An explosion suppression test device according to claim 3, characterized in that: The powder explosion suppression material temporary storage unit comprises a vibration bin (2078), the feed end of the vibration bin (2078) is located directly below the discharge end of the storage tank (201), and the feed end of the vibration bin (2078) is connected to the discharge end of the storage tank (201); The vibration bin (2078) is vertically slidably disposed in the housing (2071); The vibration bin (2078) is transmission-connected to a driving unit, and the driving unit is used to move the vibration bin (2078) up and down; The vibration bin (2078) is transmission-connected with a vibration unit, and the vibration unit is used for vibrating and mixing the powder explosion-suppressing material in the vibration bin (2078); The bottom discharge end of the vibration bin (2078) is provided with a bin door (2074), and the bin door (2074) is connected to the feed end of the discharge pipe (210). The opening and closing of the bin door (2074) is used to control the movement of the material in the vibration bin (2078) toward the discharge pipe (210).

6. An explosion suppression test device according to claim 5, characterized in that: The driving part comprises sliders (2076) fixed on both sides of the vibration bin (2078), wherein one of the sliders (2076) is provided with a vertically sliding slide bar (2073), wherein the slide bar (2073) is fixedly connected in the shell (2071), and the other slider (2076) is threadedly connected with a threaded rod (2075), wherein the threaded rod (2075) is rotatably arranged in the shell (2071), and one end of the threaded rod (2075) is transmission-connected with a rotating part.

7. An explosion suppression test device according to claim 6, characterized in that: The rotating part comprises a motor, the fixed end of the motor is fixedly connected to the inner wall of the housing (2071), and the output shaft of the motor is axially connected to one end of the threaded rod (2075).

8. An explosion suppression test device according to claim 5, characterized in that: The vibration part comprises an ultrasonic generator (2077) fixed on both sides of the vibration bin (2078); the ultrasonic generator (2077) is a piezoelectric ceramic; when the ultrasonic generator (2077) is energized, the vibration drives the vibration bin (2078) to resonate.

9. An explosion suppression test device according to claim 1, characterized in that: When the explosion source is a dust explosion, the explosion area (1) is wrapped in a closed space formed by a plastic film, the plastic film is supported by a metal bracket to form a cubic structure, and the ignition electrode (4) is arranged in the closed space; One side of the bottom of the enclosed space is connected to the discharge end of the powder spraying valve (3), the feed end of the powder spraying valve (3) is connected to the discharge end of the powder storage bin (9), and the feed end of the powder storage bin (9) is connected to the exhaust end of the air compressor (10); The other side of the bottom of the enclosed space is connected to a vacuum pumping part.

10. An explosion suppression test device according to claim 9, characterized in that: The vacuum pumping part comprises one end of a vacuum pumping valve (8) connected to the bottom of the enclosed space, and the other end of the vacuum pumping valve (8) is connected to a vacuum pump (7).

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