CN109870374A - Explosion wave loading device - Google Patents
Explosion wave loading device Download PDFInfo
- Publication number
- CN109870374A CN109870374A CN201910064837.5A CN201910064837A CN109870374A CN 109870374 A CN109870374 A CN 109870374A CN 201910064837 A CN201910064837 A CN 201910064837A CN 109870374 A CN109870374 A CN 109870374A
- Authority
- CN
- China
- Prior art keywords
- explosion
- baffle
- loading device
- pipeline
- wave loading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The present invention provides a kind of explosion wave loading device, including the pipeline that explodes, diaphragm, spark plug, air accumulator, pedestal, baffle and multiple sensors, diaphragm is located at the open at one end of explosion pipeline and being capable of contained explosion pipeline, spark plug is located at the explosion one end of pipeline far from diaphragm and can generate spark, air accumulator is for configuring, store the mixed gas with preset ratio, air accumulator can be connected with explosion pipeline and mixed gas is filled with explosion pipeline, baffle interval is set to the wherein side of pedestal, explosion pipeline is fixedly connected on the other side of pedestal and sets chaffy one end close to baffle plate setting, the mixed gas for being filled with explosion pipeline, which can be easily ignited by the spark plug and break through diaphragm and enter, forms Mach reflection between pedestal and baffle, multiple sensors are installed on baffle for measuring the impact force that baffle is subject to.The explosion wave loading device can generate quasi- two-dimensional radial explosion wave, shed suitable for experiment simulation particle and particle jet phenomenon.
Description
Technical field
The present invention relates to explosion wave technical field more particularly to a kind of explosion wave loading devices.
Background technique
Volcanic eruption in nature, the dry-chemical fire extinguishing, dust explosion in civil field and the cloud in military field are quick-fried
Phenomenon is shed and there is particle in the explosion of bullet, warm induction.Study section unstability of the granular materials under impact loading and
The problem in science such as grain jet stream growth evolution, shed phenomenon to particle has in the exploration of nature, civil field and military field
Significance.Therefore, it is really necessary to provide a kind of explosion wave loading device, to generate quasi- two-dimensional radial blast impulse
Wave is shed and particle jet phenomenon to test simulation particle.
Summary of the invention
The object of the present invention is to provide the explosion wave loads that one kind can generate quasi- two-dimensional radial explosion wave
Device.
A kind of explosion wave loading device, including explosion pipeline, diaphragm, spark plug, air accumulator, pedestal, baffle and more
A sensor, the diaphragm are located at the open at one end of the explosion pipeline and can seal the explosion pipeline, the spark plug
Positioned at the described explosion one end of pipeline far from the diaphragm and spark can be generated, the air accumulator has for configuring, storing
The mixed gas of preset ratio, the air accumulator can be connected with the explosion pipeline and mixed gas are filled with the explosion
Pipeline, the baffle interval are set to the wherein side of the pedestal, and the explosion pipeline is fixedly connected on the another of the pedestal
The side and one end for being equipped with the diaphragm is close to the baffle plate setting, the mixed gas for being filled with the explosion pipeline can be described
Spark ignitor and break through the diaphragm enter Mach reflection, multiple sensors are formed between the pedestal and the baffle
It is installed on the baffle for measuring the impact force that the baffle is subject to.
Explosion wave loading device provided by the invention is configured by air accumulator, storage has the gaseous mixture of preset ratio
Body, and by spark ignitor mixed gas to generate quasi- two-dimensional radial explosion wave between pedestal and baffle, in addition,
The impact force that can also be subject to by sensor measurement baffle is shed and particle jet phenomenon suitable for experiment simulation particle.This
The explosion wave loading device that invention provides advantages such as simple, safe, easy to operate with structure.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the part-structure for the explosion wave loading device that one embodiment of the invention provides.
Fig. 2 is the stereoscopic schematic diagram of another angle of the part-structure of explosion wave loading device shown in FIG. 1.
Fig. 3 is the decomposition diagram of the part-structure of explosion wave loading device shown in FIG. 1.
Fig. 4 is the decomposition diagram of the part-structure of explosion wave loading device shown in Fig. 2.
Fig. 5 is the structural schematic diagram of the air accumulator for the explosion wave loading device that one embodiment of the invention provides.
Main element symbol description
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, all other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element may be simultaneously present the element being centrally located.When an element is considered as " setting exists " another element,
It, which can be, is set up directly on another element or may be simultaneously present the element being centrally located.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
Body embodiment purpose, it is not intended that in limitation the present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Fig. 1, Fig. 3 and Fig. 5 are please referred to, the present invention provides a kind of explosion wave loading device, can generate quasi- two-dimensional
Radial explosion wave can be used for testing simulation particle and shed and particle jet phenomenon.The explosion wave loading device packet
Include explosion pipeline 10, diaphragm 20, spark plug 30, air accumulator 40, pedestal 50, baffle 60 and multiple sensors 70.
Diaphragm 20 be located at the open at one end of explosion pipeline 10 and can contained explosion pipeline 10, spark plug 30 is located at blasting cartridge
The one end of road far from diaphragm 20 simultaneously can generate spark.Air accumulator 40 is used to configure, stores the mixed gas with preset ratio,
Air accumulator 40 can be connected with explosion pipeline 10 and mixed gas is filled with explosion pipeline 10.Baffle 60 is arranged at intervals at pedestal
50 wherein side, explosion pipeline 10 are fixedly connected on the other side of pedestal 50 and one end equipped with diaphragm 20 and set close to baffle 60
It sets.Be filled with explosion pipeline 10 mixed gas can be lighted by spark plug 30 and break through diaphragm 20 enter pedestal 50 and baffle 60 it
Between form Mach reflection.Multiple sensors 70 are installed on baffle 60 for measuring the impact force that baffle 60 is subject to.
Explosion pipeline 10 is equipped with the air valve 12 for connecing port 11 and connecing port 11 including that can be closed referring to FIG. 1 to FIG. 4,
Exploding pipeline 10 can be detachably connected by connecing port 11 and air accumulator 40.When air accumulator 40 with connect port 11 be connected and
When air valve 12 is in the open state, the mixed gas in air accumulator 40 is filled with explosion pipeline 10.When what is be filled in explosion pipeline 10
After mixed gas meet demand, air valve 12 is closed, and air accumulator 40 is detachable to connect port 11.
Please referring to Fig. 3 and Fig. 4, diaphragm 20 can be aluminium film, copper film or plastic foil, and the thickness of diaphragm 20 is about 5~
10mm.It should be noted that material and the thickness selection of diaphragm 20 need to combine actual demand, so that 30 igniting of spark plug
Before, the mixed gas being sealed in explosion pipeline 10 has certain initial pressure, without breaking through diaphragm 20.For example, can set
Surely the initial pressure to explode in pipeline 10 is 1bar, 4bar, 6.5bar, 9bar etc..
Pedestal 50 include a platform 51 and multiple support legs 52, multiple support legs 52 be fixedly connected on the side of platform 51 with
Support platform 51, baffle 60 are located at platform 51 and are spaced and are arranged in parallel in the side of support leg 52 and with platform 51 opposite to each other.One
In a embodiment, platform 51 is in the form of a circular plate with baffle 60 and diameter is identical, and platform 51 and baffle 60 are coaxially disposed and put down
Row is arranged in horizontal plane.
It should be noted that granular materials is placed on platform 51, the mixed gas exploded in pipeline 10 is by spark plug
30, which light backlash rupture of membranes piece 20, which enters the explosion wave formed between platform 51 and baffle 60, can act on platform 51
Granular materials is shed and particle jet phenomenon to simulate particle.
In one embodiment, the quantity of support leg 52 is four and is spaced apart along the even circumferential of baffle 60.Into
One step, pedestal 50 can also include multiple connection straps 53, the both ends of each connection strap 53 respectively with two neighboring support leg 52
It is fixedly connected, to enhance the stability of support leg 52.
Further, explosion wave loading device further includes multiple pads 80, and multiple pads 80 are located at baffle 60 and put down
It is evenly spaced between platform 51 and along the edge of baffle 60.It should be noted that the distance between baffle 60 and platform 51 take
Certainly in the height of gasket 80, multiple pads 80, which are evenly spaced on, to be conducive to baffle 60 and is arranged in parallel with platform 51.Furthermore, it is possible to
By adjusting the distance between the height regulating fender 60 of gasket 80 and platform 51.The distance between platform 51 and baffle 60 are more
It is small, be more conducive to generate quasi- two-dimensional radial explosion wave, and the distance between baffle 60 and platform 51 are by granular materials
Grain diameter influence, particle is bigger, and the distance between baffle 60 and platform 51 should also become larger therewith.
In one embodiment, baffle 60 offers multiple fixation holes 61, and platform 51 offers multiple threaded holes 511,
Multiple fixation holes 61 and multiple threaded holes 511 are corresponded with multiple pads 80 respectively to be distributed.Baffle 60 can lead to platform 51
The corresponding fixation hole 61 of screw bolt passes, gasket 80 and threaded hole 511 is crossed to be fixedly connected.
Further, explosion wave loading device further includes folder membrane 90, and the open at one end of explosion pipeline 10 is convexly equipped with
Film matching piece 13 is pressed from both sides, folder membrane 90 and folder film matching piece 13 are located at the two sides of diaphragm 20 to clamp diaphragm 20.
In one embodiment, folder membrane 90 includes an arrived tableting 91 and the receiving cartridge protruded outward from arrived tableting 91
92, arrived tableting 91 is resisted against diaphragm 20 or folder film matching piece 13 to clamp diaphragm 20.Specifically, receiving cartridge 92 is in hollow circle
Column, explosion pipeline 10 also correspond to the diameter of receiving cartridge 92, receiving cartridge 92 and explosion pipeline in hollow cylindric and diameter
10 are arranged and are coaxially disposed along the vertical direction.When diaphragm 20 is broken through, receiving cartridge 92 is connected with explosion pipeline 10.
More specifically, platform 51 offers the accepting hole 512 through two sides, accepting hole 512 it is rounded and with platform 51
Concentric setting.The diameter of accepting hole 512 corresponds to the outer diameter of receiving cartridge 92, thus, receiving cartridge 92 can extend into accepting hole 512
And with 512 location fit of accepting hole.So the mixed gas in explosion pipeline 10 is lighted backlash rupture of membranes piece 20 by spark plug 30 and is passed through
The gap being able to enter between platform 51 and baffle 60 is crossed after receiving cartridge 92.
Further tool, explosion wave loading device further include multiple fixing seats 100, and each fixing seat 100 is for installing
One sensor 70, i.e., each sensor 70 pass through a corresponding fixing seat 100 and are installed on baffle 60.In an embodiment
In, baffle 60 offers multiple mounting holes 62, and multiple fixing seats 100 are respectively accommodated in corresponding mounting hole 62.
Multiple sensors 70 are located at one of baffle 60 diametrically, and are symmetric centered on the center of circle of baffle 60.
In one embodiment, the quantity of sensor 70 is 5, and 5 sensors 70 are arranged in a row and equidistantly distributed, adjacent two
The distance between a sensor 70 is preferably 30mm, and a sensor 70 for being located at 5 70 middle positions of sensor is set to
On the center of circle of baffle 60.In other embodiments, the quantity of sensor 70 is adjustable, such as the quantity of sensor 70 can be with
As the diameter of baffle 60 increases and increase.Sensor 70 on 60 center of circle of baffle can be omitted, because of 60 center of circle of baffle
The impact force at place is too big, is easily damaged sensor 70.
Referring to Fig. 5, air accumulator 40 includes tank body 41, multiple tube bodies 42 and control assembly 43, multiple tube bodies 42 and tank body
41, which are connected, enters the channel of tank body 41 as gas.Control assembly 43 can control respectively multiple tube bodies 42 whether with tank body 41
It is connected, and different gas can be successively filled with to tank body 41 by the air pressure in control tank body 41 according to Dalton's law (of partial pressures)
Body is to configure the mixed gas of preset ratio.
Specifically, control assembly 43 may include multiple valves 431 and pressure gauge 432, and multiple valves 431 are respectively used to control
Make whether corresponding tube body 42 is connected with tank body 41, pressure gauge 432 is used to show the air pressure in tank body 41.
For example, using the mixed gas for the methane and oxygen that the configuration air pressure of air accumulator 40 is 1:2 for 300kPa, molar ratio
When being stored in tank body 41, according to Dalton's law (of partial pressures), the stagnation pressure of mixed gas is equal to each component gas in mixed gas
The sum of partial pressure, therefore, first can be evacuated to 0kPa for tank body 41 by control assembly 43, then be filled with into tank body 41
The methane of 100kPa is re-filled with the oxygen of 200kPa, makes the total gas pressure 300kPa in tank body 41.It is appreciated that methane and oxygen
Being filled with for gas can sequentially be exchanged.
Valve 431 can be needle-valve, be also possible to ball valve.In one embodiment, pass through ball valve and tank body 41 respectively
Three tube bodies 42 being connected are arranged to vacuum orifice, drain and gas outlet far from one end of tank body 41.Wherein, it vacuumizes
Mouth can be with external vaccum-pumping equipment, the extraction when vacuumizing for the gas in tank body 41.Drain can make tank body 41 idle
When air pressure inside be consistent with external atmosphere pressure.Gas outlet can removably connect with the port 11 that connects of explosion pipeline 10
It connects, so that the gas in tank body 41 is filled with explosion pipeline 10.
In one embodiment, pressure gauge 432 includes one for showing the first pressure gauge of positive pressure in tank body 41
4321 and one for showing the second pressure gauge 4322 of negative pressure in tank body 41.
It should be noted that the methane and oxygen of configuration mixed gas are very likely from high pressure methane tank and high pressure oxygen
In tank, to make methane and oxygen safely enter tank body 41, control assembly 43 further includes two pressure reducing valves 433, one of them subtracts
Pressure valve 433 is set on the tube body 42 between connection high pressure methane tank and tank body 41, and it is high that another pressure reducing valve 433 is set to connection
It presses on the tube body 42 between oxygen tank and tank body 41.In addition, pressure gauge 432 further includes two high pressure gauges 4323 and two low-pressure meters
4324, one of high pressure gauge 4323 is set on the tube body 42 between high pressure methane tank and a corresponding pressure reducing valve 433, another
A high pressure gauge 4323 is set on the tube body 42 between hyperbaric oxygen gas tank and a corresponding pressure reducing valve 433.Two low-pressure meters 4324
It is respectively arranged on the tube body 42 between tank body 41 and two pressure reducing valves 433.
It is connected it is appreciated that high pressure methane tank is passed through pressure reducing valve 433 with hyperbaric oxygen gas tank respectively with tank body 41, and leads to
It is safer to cross the process that corresponding high pressure gauge 4323 and low-pressure meter 4324 make gas enter tank body 41.
In addition, those skilled in the art can also do other variations in spirit of that invention, certainly, these are smart according to the present invention
The variation that mind is done, should all be included in scope of the present invention.
Claims (10)
1. a kind of explosion wave loading device, for generating quasi- two-dimensional radial explosion wave, it is characterised in that: described quick-fried
Fried shock wave loading device includes explosion pipeline, diaphragm, spark plug, air accumulator, pedestal, baffle and multiple sensors, the film
Piece is located at the open at one end of the explosion pipeline and can seal the explosion pipeline, and the spark plug is located at the explosion pipeline
One end far from the diaphragm simultaneously can generate spark, and the air accumulator is used to configure, stores the gaseous mixture with preset ratio
Body, the air accumulator can be connected with the explosion pipeline and mixed gas is filled with the explosion pipeline, between the baffle
Every the wherein side for being set to the pedestal, the explosion pipeline is fixedly connected on the other side of the pedestal and is equipped with the film
Close to the baffle plate setting, the mixed gas for being filled with the explosion pipeline by the spark ignitor and can be broken through for one end of piece
The diaphragm, which enters, forms Mach reflection between the pedestal and the baffle, multiple sensors are installed on the baffle
The impact force being subject to for measuring the baffle.
2. explosion wave loading device as described in claim 1, it is characterised in that: the pedestal includes a platform and multiple
Support leg, multiple support legs are fixedly connected on the side of the platform to support the platform, and the baffle is located at described
Platform opposite to each other in the side of the support leg and with the platform interval and be arranged in parallel.
3. explosion wave loading device as claimed in claim 2, it is characterised in that: the explosion wave loading device is also
Including pressing from both sides membrane, the open at one end of the explosion pipeline is convexly equipped with folder film matching piece, the folder membrane and the folder film matching piece
The two sides of the diaphragm are located to clamp the diaphragm.
4. explosion wave loading device as claimed in claim 3, it is characterised in that: the platform is offered through opposite two
The accepting hole of side, the receiving cartridge that the folder membrane includes the arrived tableting of sheet and protrudes out from the arrived tableting extroversion are described to compress
Piece is resisted against the diaphragm or the folder film matching piece, and the receiving cartridge protrudes into the accepting hole and positions with the accepting hole
Cooperation.
5. explosion wave loading device as claimed in claim 2, it is characterised in that: the explosion wave loading device is also
Including multiple pads, edge uniform intervals of multiple gaskets between the baffle and the platform and along the baffle
Distribution.
6. explosion wave loading device as claimed in claim 5, it is characterised in that: the baffle offers multiple fixations
Hole, the platform offer multiple threaded holes, multiple fixation holes and multiple threaded holes respectively with multiple gaskets
Correspond distribution, the baffle and the platform pass through the corresponding fixation hole of screw bolt passes, the gasket and institute
Threaded hole is stated to be fixedly connected.
7. explosion wave loading device as described in claim 1, it is characterised in that: the explosion wave loading device is also
Including multiple fixing seats, each fixing seat is for installing a sensor；The baffle offers multiple mounting holes,
Multiple fixing seats are respectively accommodated in the corresponding mounting hole.
8. explosion wave loading device as described in claim 1, it is characterised in that: the baffle is rounded, multiple described
Sensor is located at one of the baffle diametrically, and is symmetric centered on the center of circle of the baffle.
9. explosion wave loading device as described in claim 1, it is characterised in that: the air accumulator includes tank body, multiple
Tube body and control assembly, multiple tube bodies, which are connected as gas with the tank body, passes in and out the channel of the tank body；The control
Component processed can control whether multiple tube bodies are connected with the tank body respectively, and can be logical according to Dalton's law (of partial pressures)
It crosses and controls the air pressure in the tank body and be successively filled with different gas to the tank body to configure the mixed gas of preset ratio.
10. explosion wave loading device as claimed in claim 9, it is characterised in that: the control assembly includes multiple valves
Door and pressure gauge, multiple valves are respectively used to control whether the corresponding tube body is connected with the tank body, the pressure
Power table is used to show the air pressure in the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064837.5A CN109870374A (en) | 2019-01-23 | 2019-01-23 | Explosion wave loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064837.5A CN109870374A (en) | 2019-01-23 | 2019-01-23 | Explosion wave loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109870374A true CN109870374A (en) | 2019-06-11 |
Family
ID=66917894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910064837.5A Pending CN109870374A (en) | 2019-01-23 | 2019-01-23 | Explosion wave loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109870374A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044862A (en) * | 2019-12-23 | 2020-04-21 | 南通大学 | Device for testing volume of gas capable of penetrating through fabric under action of simulated arc deflagration shock wave |
| CN111982760A (en) * | 2020-08-21 | 2020-11-24 | 北京理工大学 | Detonation wave loading experimental device |
| CN111982759A (en) * | 2020-08-21 | 2020-11-24 | 北京理工大学 | Explosive wave loading experimental device |
| CN117250109A (en) * | 2023-09-21 | 2023-12-19 | 中山大学 | Underwater explosive soil layer damage test energy gathering device, system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216396A (en) * | 2007-12-26 | 2008-07-09 | 江苏大学 | Agricultural material impacting characteristic test apparatus and method |
| CN104390892A (en) * | 2014-11-19 | 2015-03-04 | 黄河勘测规划设计有限公司 | Tester and method for testing soft particles in coarse aggregate |
| CN109001055A (en) * | 2018-07-27 | 2018-12-14 | 北京理工大学 | impact loading experiment device |
-
2019
- 2019-01-23 CN CN201910064837.5A patent/CN109870374A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216396A (en) * | 2007-12-26 | 2008-07-09 | 江苏大学 | Agricultural material impacting characteristic test apparatus and method |
| CN104390892A (en) * | 2014-11-19 | 2015-03-04 | 黄河勘测规划设计有限公司 | Tester and method for testing soft particles in coarse aggregate |
| CN109001055A (en) * | 2018-07-27 | 2018-12-14 | 北京理工大学 | impact loading experiment device |
Non-Patent Citations (1)
| Title |
|---|
| KUN XUE等: "Dual hierarchical particle jetting of particle ring undergoing a radial explosion", 《SOFT MATTER》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044862A (en) * | 2019-12-23 | 2020-04-21 | 南通大学 | Device for testing volume of gas capable of penetrating through fabric under action of simulated arc deflagration shock wave |
| CN111982760A (en) * | 2020-08-21 | 2020-11-24 | 北京理工大学 | Detonation wave loading experimental device |
| CN111982759A (en) * | 2020-08-21 | 2020-11-24 | 北京理工大学 | Explosive wave loading experimental device |
| CN111982759B (en) * | 2020-08-21 | 2023-08-22 | 北京理工大学 | Explosive wave loading experimental device |
| CN117250109A (en) * | 2023-09-21 | 2023-12-19 | 中山大学 | Underwater explosive soil layer damage test energy gathering device, system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109870374A (en) | Explosion wave loading device | |
| CN104407013B (en) | Measure the gas burst experimental provision to structure influence | |
| CN202614465U (en) | Full automatic pressure checking table of high hydrostatic pressure differential pressure transmitter | |
| CN101477094B (en) | Experimental device for restraining gas and dust explosion by water mist | |
| MY151535A (en) | Compressed air regulator apparatus situated in canister and method for regulating compressed air therof | |
| KR102070948B1 (en) | Movable hydrogen evaluation facility device | |
| CN104458490A (en) | True-triaxial coal and gas adsorption-desorption and outburst test device system and test method | |
| CN101316639A (en) | Method and device for free-standing support of objects in space | |
| CN109708982A (en) | Oil storage tank breaking test platform and method under fire, explosion and its coupling | |
| Cui et al. | Influential factors of gas explosion venting in linked vessels | |
| CN108627404B (en) | System and method for testing explosion venting flame induced vapor cloud explosion | |
| CN104422713A (en) | Underground coal mine gas explosion reaction test device | |
| CN101876655A (en) | Gas inflammability tester | |
| CN114813405A (en) | Petrochemical device rupture disk failure form and bursting performance detection test device and method under dynamic load | |
| CN108732046A (en) | A kind of steel oil storage tank wall surface breaking test platform under disaster-ridden kind of coupling and its experimental method | |
| CN108426917A (en) | A kind of wide open space vaporous cloud explosion chain reaction test system and its test method | |
| JP6131428B2 (en) | Gas explosion experience device | |
| CN206930440U (en) | A kind of test device of safety valve | |
| CN114252344B (en) | Low-temperature hydraulic testing device and method for pressure container without heat insulation layer | |
| CN106338443B (en) | Performance testing device and method for blasting equipment in simulated underwater environment | |
| CN103616250B (en) | Industrial building structure and parts are explosion-proof, pressure release and datonation-inhibition function evaluating apparatus and method | |
| CN204679261U (en) | A kind of reduction valve, pressure governor pilot system | |
| CN103983445B (en) | A kind of Fire Test device of high-speed ventilation valve | |
| CN210873881U (en) | Fire-fighting cannonball launching module | |
| CN209432383U (en) | A kind of bogie tightness test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190611 |
|
| RJ01 | Rejection of invention patent application after publication |