CN209416956U - Metal material inhibits the experimental provision of flammable explosive gas explosion - Google Patents
Metal material inhibits the experimental provision of flammable explosive gas explosion Download PDFInfo
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- CN209416956U CN209416956U CN201821966311.3U CN201821966311U CN209416956U CN 209416956 U CN209416956 U CN 209416956U CN 201821966311 U CN201821966311 U CN 201821966311U CN 209416956 U CN209416956 U CN 209416956U
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Abstract
The utility model discloses the experimental provisions that a kind of metal material inhibits flammable explosive gas explosion, and wire is filled in flammable explosive gas container and inhibits flammable gas explosion.Experimental provision includes flammable explosive gas explosive container, flammable explosive gas explosive container is connected with fuel gas flammable and explosive device, transient pressure acquisition system and ignition energy testing stand, the packing material of filling experiment in flammable explosive gas explosive container, learning gas explosion synthesis explosive characteristic is calculated to flammable explosive gas explosion transient pressure acquisition and rate of pressure rise by installing the realization of transient pressure sensor on test tank body, easy-to-use, gained test data is reliable, accurate.Convenient for being applied in the experimental study that different materials influence flammable explosive gas explosive characteristic.
Description
Technical field
The utility model relates to a kind of technologies of inhibition flammable explosive gas explosion more particularly to a kind of metal material to inhibit
The experimental provision of flammable explosive gas explosion.
Background technique
Flammable explosive gas explosion is sufficiently complex and extremely quick physics, a chemical reaction process, blast process
Flame is propagated rapidly and energy abrupt release, while can also generate many intermediate products and moment product, such as molecule, freedom
Base, ion, electronics etc..The packing material in the container of storage flammable and combustible liquids, packing material can obstruct the rapid of flame
Propagate the abrupt release with energy.When flame and material surface contact, heat is by material Quick diffusing, if the heat of material
Hold and thermal conductivity is much higher than fuel gas, when aperture is sufficiently small, the speed of heat dissipation is more than the speed that heat generates, and destroys Jie
Matter fires condition, to prevent the generation of explosion, ensure that the storing and transporting security of inflammable and explosive air-liquid state hazardous chemical.
After World War II, American-European countries begins to the application study of block blast-proof materials, mainly studies military aircraft
The fire-proof and explosion-proof material of fuel tank, and obtained Rapid Popularization in civilian gas station's buried tank, back-fire relief equipment, facility and answered
With.Block blast-proof materials is currently on the market with the in the majority of aluminium alloy block blast-proof materials and polyurethane foam type material, but real
In the application process of border, the datonation-inhibition function and effect of the barrier that these materials fire flammable explosive gas are had nothing in common with each other.
It is current studies have shown that in tank body the physics of packing material, chemical property (packed density, planform, material
Material) have a significant impact to its Separated explosion-proof performance (firing superpressure value), domestic and foreign scholars to inflammable gas-liquid (gas,
Hydrogen) detonation propagation rule, the researchs such as dynamic characteristics and influence factor are more deep, but for having dosed of different nature fill out
Fill material be how to influence inflammable and explosive flammable gas explosion and its propagate aspect research it is then less, even without experimental rig
Feature can be fired definitely to flammable explosive gas for the block blast-proof materials different applied to research physics, chemical property influences.
Utility model content
The purpose of the utility model is to provide the experimental provisions that a kind of metal material inhibits flammable explosive gas explosion.
The purpose of this utility model is achieved through the following technical solutions:
The experimental provision that the metal material of the utility model inhibits flammable explosive gas to explode, including flammable explosive gas are quick-fried
Fried container, the flammable explosive gas explosive container be connected with fuel gas flammable and explosive device, transient pressure acquisition system and
Ignition energy testing stand, the packing material of the interior filling experiment of the flammable explosive gas explosive container.
The metal material provided by the embodiment of the utility model it can be seen from above-mentioned technical solution provided by the utility model
The experimental provision of inhibition flammable explosive gas explosion is realized by installing transient pressure sensor on test tank body to inflammable easy
The acquisition of quick-fried gas burst transient pressure and rate of pressure rise calculate learning gas and explode comprehensive explosive characteristic, and obtain preferably but
The magnetic metal for being not limited only to Fe, Ni, Co inhibits effect the best way of flammable explosive gas explosion.It is easy-to-use, gained
Test data is reliable, accurate.Convenient for being applied in the experimental study that different materials influence flammable explosive gas explosive characteristic.
Detailed description of the invention
Fig. 1 is the experimental provision structure that metal material provided by the embodiment of the utility model inhibits flammable explosive gas explosion
Schematic diagram.
Fig. 2 is filling aluminium wire and 8% Propane-air flammable explosive gas of slack tank explosion transient state in the utility model embodiment
Pressure curve.
Fig. 3 is that filling 8% Propane-air flammable explosive gas of different metal material explodes wink in the utility model embodiment
State pressure curve.
In figure:
1, flammable explosive gas explosion pipeline, 2, air inlet valve, 3, air compressor, 4, triple valve, 5, spinner
Meter, 6, valve, 7, exhaust collection processing unit, 8, gas flammable and explosive device, 9, air gas cylinder, 10- fuel gas gas cylinder,
The gas outlet 11- valve, the right side 12- end cap, 13- explosion rupture disk, 14- packing material, 15- transient pressure sensor, the acquisition of 16- data
Computer, 17- transient pressure acquire host, 18- high-energy ignition head, the left side 19- end cap, 20- ignition energy testing stand.
Specific embodiment
The utility model embodiment will be described in further detail below.Do not make in the utility model embodiment in detail
The content of description belongs to the prior art well known to professional and technical personnel in the field.
The metal material of the utility model inhibits the experimental provision of flammable explosive gas explosion, preferable specific embodiment party
Formula is:
Including flammable explosive gas explosive container, it is inflammable easily that the flammable explosive gas explosive container is connected with fuel gas
Quick-fried device, transient pressure acquisition system and ignition energy testing stand, the interior filling experiment of the flammable explosive gas explosive container are used
Packing material.
The transient pressure acquisition system includes the transient pressure for being mounted on flammable explosive gas explosive container side
Sensor；
The end cap installation gasket and explosion rupture disk at flammable explosive gas explosive container both ends, the flammable explosive gas
Explosive container is also connected with pumped vacuum systems, air distribution system, and the ignition energy testing stand is connected by cable and high-energy ignition head
It connects.
The method for inhibiting flammable explosive gas explosion using the metal material of the utility model, in flammable explosive gas container
Interior filling magnetic metal silk inhibits flammable gas explosion, the magnetic metal include iron, cobalt, nickel, manganese, lanthanide series or they from
At least one of the alloy of formation between oneself metal oxide.
The test procedure of the experimental rig includes:
A, filling material: the packing material in test tank body can fill variety classes as needed, different structure shape,
The material of different densities, unlike material, igniting head end leave a blank 5%, and complementary space filling is full；
B, airtight test: the airtightness of check device.Air is injected to pipeline, smears interface with suds, if
The phenomenon that being bubbled illustrates air-tightness imprecision, finds out Gas leak position and takes containment measures, until the entire dress of confirmation
It is intact to set air-tightness, can be tested；
C, it vacuumizes: checking that confirmation device air inlet is in close state before vacuumizing, tank body small volume is extracted out manually
100-200ml air can reach requirement, close valve；
D, distribution: the volume of gas burst pipeline be 1130ml, according in required flammable explosive gas fuel gas it is dense
Degree, the distribution in flammable explosive gas air distributing device；
E, start pressure acquisition system: the sample frequency of pressure acquisition system is adjustable, is 6,000 times/second --- 15,000 times/
Second；
F, it lights a fire: opening igniting power test rig and ignition energy class, discharge igniting are set；
G, data acquisition and procession is analyzed: after the test, being handled the transient state blast pressure data collected
Analysis, to obtain transient state detonation peak pressure and rate of pressure rise；
H, blowing pipeline: closing distribution end valve door, opens air compressor end valve door, opens air compressor, purging five
Minute.If do not needed to change material, then it can meet step B and carry out lower battery of tests.
The metal material of the utility model inhibits the experimental provision of flammable explosive gas explosion, can be convenient for filling heterogeneity
Material, while transient state blast pressure can be acquired, pass through and change experimental condition, acquisition time/pressure data realizes analysis and research
The transient state blast pressure feature of flammable explosive gas, obtains what these materials exploded to flammable explosive gas after filling different materials
The affecting laws of transient state blast pressure and rate of pressure rise facilitate the real datonation-inhibition essence for understanding block blast-proof materials, ram
The basic test data of real current material, further research and develop novel separation explosion-proof material, have very important significance of scientific research and
Economic value.
The utility model experiments have shown that:
1, after filling wire, detonation pressure peak is greatly reduced, and shows effectively inhibit flammable after filling wire
Gas burst.
2, it can be seen that the detonation pressure peak of filling Ni, Fe significantly lower than filling Al, Cu from explosion transient pressure curve
's.Prove magnetic metal Fe, Ni than nonmagnetic metal Al, Cu datonation-inhibition function more preferably.
3, with the increase of fuel gas molecular weight, influence of the magnetic metal to explosion transient pressure is more obvious, magnetic
It is more obvious that metal datonation-inhibition function is better than the phenomenon that nonmagnetic metal.
4, the influence that magnetic metal moves free radical has evident regularity: with the increase and explosion of fuel gas molecular weight
The free radical volume that reaction generates increases, and influence of the magnetic metal to the free radical characteristics of motion is more obvious, can effectively hinder
Only gas burst free chain reaction achievees the effect that significantly inhibit flammable gas explosion.
The utility model convenient for probing into different condition to the experimental rig of flammable explosive gas blast pressure affecting laws
Include:
1, the purpose of this utility model is to provide one kind convenient at different conditions, research and analyse these conditions to inflammable
The experimental rig and method that explosion hazard gases blast pressure influences.It is special to flammable explosive gas blast pressure convenient for probing into different condition
Sign influences.Versatile, repeatable test.
2, for the utility model method mainly by filling different kind of material in pipeline (tank body), cooperation changes filling material
The packed density of material, shape, Material texture, in pipeline (tank body) side, installation transient pressure sensor is realized to inflammable and explosive gas
The research of the explosive characteristics such as the acquisition of body explosion transient pressure, rate of pressure rise calculating.
3, the utility model device, which can be used for carrying out respectively, is not filled with any material and fills the inflammable of certain certain material
The Separated explosion-proof performance of the packing material is evaluated in explosion hazard gases explosive test, is probed into packing material and is exploded to flammable explosive gas
Feature influences.
4, the experimental rig that flammable explosive gas blast pressure is influenced convenient for research different condition of the utility model, dress
Set main pipeline (tank body) side installation transient pressure sensor, both ends sealing cover and flammable explosive gas explosive test pipeline (tank
Body) between gasket is installed, explosion rupture disk is to contact sealing firmly with explosion rupture disk interface, and pumped vacuum systems, air distribution system pass through pipeline
It is connect with flammable explosive gas explosive test tank body, ignition energy testing stand is connect by cable with high-energy ignition head.
Specific embodiment, as shown in Figure 1 to Figure 3:
Main implementation steps:
(1) (material is not limited to the metal material filled in specific embodiment to filling metal material, other metals, nonmetallic
Material)
The copper wire of same diameter, aluminium wire, nickel wire and iron wire are rolled into the cylinder that diameter is suitble to explosion internal diameter of the pipeline respectively
Shape.Copper wire, aluminium wire are nonmagnetic material, and nickel wire and iron wire are ferromagnetic metal material.Before filling metal material, metal
Material should be clean using ultrasonic cleaning, avoids influencing test result.Being filled with surface area respectively is 0.12m2、0.24m2With
0.36m2Wire
(2) distribution (experimental gas and composition ratio are not limited to the gas filled in specific embodiment, other concentration it is inflammable
Explosion hazard gases)
A, percent by volume is 8% propane/air flammable explosive gas.
B, percent by volume is 5% normal butane/air flammable explosive gas.
C, percent by volume is 5% pentane/air flammable explosive gas.
C, percent by volume is 2% benzene vapor/air flammable explosive gas.
D, percent by volume is 4% benzene vapor/air flammable explosive gas.
(any flammable flammable explosive gas/steam of configurable arbitrary volume ratio)
(3) point, which is fought, acquires data
After flammable explosive gas stands 5min, pressure testing system is opened, pressure sensor is connected, acquires number
According to setting igniting captive firing energy clicks discharge switch, observes the deformation of test software upper ripple.
Wire surface product is 0.12m2Experiment case study:
Specific embodiment 1, filling different metal material, wire surface product is 0.12m2Under conditions of, 8% propane-
Air flammable explosive gas explosive test.
Table 1 fills different metal material and 8% Propane-air flammable explosive gas detonation pressure peak of slack tank
Specific embodiment 2, filling different metal material, wire surface product is 0.12m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 5% normal butane/air.
Table 2 fills different metal material and 5% normal butane of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 350.86 |
| Aluminium wire | 89.34 |
| Copper wire | 93.68 |
| Nickel wire | 39.47 |
| Iron wire | 34.32 |
Specific embodiment 3, filling different metal material, wire surface product is 0.12m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 5% pentane/air.
Table 3 fills different metal material and 5% pentane of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 320.46 |
| Aluminium wire | 89.47 |
| Copper wire | 88.83 |
| Nickel wire | 32.37 |
| Iron wire | 29.32 |
Specific embodiment 4, filling different metal material, wire surface product is 0.12m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 2% benzene vapor/air.
Table 4 fills different metal material and 2% benzene vapor of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 230.43 |
| Aluminium wire | 60.23 |
| Copper wire | 57.34 |
| Nickel wire | 23.82 |
| Iron wire | 25.38 |
Specific embodiment 5, filling different metal material, wire surface product is 0.12m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 4% benzene vapor/air.
Table 5 fills different metal material and 4% benzene vapor of slack tank -- air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 320.34 |
| Aluminium wire | 70.63 |
| Copper wire | 60.37 |
| Nickel wire | 22.53 |
| Iron wire | 16.00 |
Wire surface product is 0.24m2Experiment case study
Specific embodiment 6, filling different metal material, wire surface product is 0.24m2Under conditions of, 8% propane-
Air flammable explosive gas explosive test.
Table 6 fills different metal material and 8% Propane-air flammable explosive gas detonation pressure peak of slack tank
| Packing material | Surge pressure/kPa |
| Slack tank | 398.62 |
| Aluminium wire | 59.49 |
| Copper wire | 93.35 |
| Nickel wire | 27.36 |
| Iron wire | 15.83 |
Specific embodiment 7, filling different metal material, wire surface product is 0.24m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 5% normal butane/air.
Table 7 fills different metal material and 5% normal butane of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 350.86 |
| Aluminium wire | 74.29 |
| Copper wire | 83.50 |
| Nickel wire | 32.34 |
| Iron wire | 31.15 |
Specific embodiment 8, filling different metal material, wire surface product is 0.24m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 5% pentane/air.
Table 8 fills different metal material and 5% pentane of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 320.46 |
| Aluminium wire | 79.32 |
| Copper wire | 78.28 |
| Nickel wire | 28.39 |
| Iron wire | 25.29 |
Specific embodiment 9, filling different metal material, wire surface product is 0.24m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 2% benzene vapor/air.
Table 9 fills different metal material and 2% benzene vapor of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 230.43 |
| Aluminium wire | 57.34 |
| Copper wire | 59.23 |
| Nickel wire | 21.35 |
| Iron wire | 20.73 |
Wire surface product is 0.36m2Experiment case study
Specific embodiment 10, filling different metal material, wire surface product is 0.36m2Under conditions of, 8% propane-
Air flammable explosive gas explosive test.
Table 10 fills different metal material and 8% Propane-air flammable explosive gas detonation pressure peak of slack tank
| Packing material | Surge pressure/kPa |
| Slack tank | 398.62 |
| Aluminium wire | 62.34 |
| Copper wire | 84.29 |
| Nickel wire | 23.57 |
| Iron wire | 14.29 |
Specific embodiment 11, filling different metal material, wire surface product is 0.36m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 5% normal butane/air.
Table 11 fills different metal material and 5% normal butane of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 350.86 |
| Aluminium wire | 68.34 |
| Copper wire | 80.23 |
| Nickel wire | 30.67 |
| Iron wire | 28.35 |
Specific embodiment 12, filling different metal material, wire surface product is 0.36m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 5% pentane/air.
Table 12 fills different metal material and 5% pentane of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 320.46 |
| Aluminium wire | 74.36 |
| Copper wire | 69.36 |
| Nickel wire | 25.38 |
| Iron wire | 23.95 |
Specific embodiment 13, filling different metal material, wire surface product is 0.36m2Under conditions of, volume basis
Than for the flammable explosive gas explosive test of 2% benzene vapor/air.
Table 13 fills different metal material and 2% benzene vapor of slack tank-air flammable explosive gas detonation pressure peak
| Packing material | Surge pressure/kPa |
| Slack tank | 230.43 |
| Aluminium wire | 53.46 |
| Copper wire | 51.28 |
| Nickel wire | 19.36 |
| Iron wire | 17.56 |
Specific embodiment result
The utility model device and method are easy-to-use, and gained test data is reliable, accurate.Convenient for being applied to different materials
In the experimental study influenced on flammable explosive gas explosive characteristic.
1, after filling wire, detonation pressure peak is greatly reduced, and shows effectively inhibit flammable after filling wire
Gas burst.
2, it can be seen that the detonation pressure peak of filling Ni, Fe significantly lower than filling Al, Cu from explosion transient pressure curve
's.Prove magnetic metal Fe, Ni than nonmagnetic metal Al, Cu datonation-inhibition function more preferably.
3, with the increase of fuel gas molecular weight, influence of the magnetic metal to explosion transient pressure is more obvious, magnetic
It is more obvious that metal datonation-inhibition function is better than the phenomenon that nonmagnetic metal.
4, the influence that magnetic metal moves free radical has evident regularity: with the increase and explosion of fuel gas molecular weight
The free radical volume that reaction generates increases, and influence of the magnetic metal to the free radical characteristics of motion is more obvious, can effectively hinder
Only gas burst free chain reaction achievees the effect that significantly inhibit flammable gas explosion.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (2)
1. the experimental provision that a kind of metal material inhibits flammable explosive gas explosion, which is characterized in that including inflammable and explosive inflammable
Explosion hazard gases explosive container, the inflammable and explosive flammable explosive gas explosive container be connected with fuel gas flammable and explosive device,
Transient pressure acquisition system and ignition energy testing stand, the filling material of the interior filling experiment of the flammable explosive gas explosive container
Material.
2. the experimental provision that metal material according to claim 1 inhibits flammable explosive gas explosion, which is characterized in that institute
Stating transient pressure acquisition system includes the transient pressure sensor for being mounted on flammable explosive gas explosive container side；
The end cap installation gasket and explosion rupture disk at flammable explosive gas explosive container both ends, the flammable explosive gas explosion
Container is also connected with pumped vacuum systems, air distribution system, and the ignition energy testing stand is connect by cable with high-energy ignition head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821966311.3U CN209416956U (en) | 2018-11-27 | 2018-11-27 | Metal material inhibits the experimental provision of flammable explosive gas explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821966311.3U CN209416956U (en) | 2018-11-27 | 2018-11-27 | Metal material inhibits the experimental provision of flammable explosive gas explosion |
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| Publication Number | Publication Date |
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| CN209416956U true CN209416956U (en) | 2019-09-20 |
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ID=67935413
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307863A (en) * | 2020-03-17 | 2020-06-19 | 南京工业大学 | Combustible gas hot surface ignition experimental device and method in flowing state |
| CN112798647A (en) * | 2020-12-25 | 2021-05-14 | 西安科技大学 | Quantitative analysis method for inhibition efficiency of explosion suppressant on gas explosion |
-
2018
- 2018-11-27 CN CN201821966311.3U patent/CN209416956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307863A (en) * | 2020-03-17 | 2020-06-19 | 南京工业大学 | Combustible gas hot surface ignition experimental device and method in flowing state |
| CN112798647A (en) * | 2020-12-25 | 2021-05-14 | 西安科技大学 | Quantitative analysis method for inhibition efficiency of explosion suppressant on gas explosion |
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