CN108548895A - The experimental provision and test method of mechanical collision spark initiation fuel gas or steam - Google Patents
The experimental provision and test method of mechanical collision spark initiation fuel gas or steam Download PDFInfo
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- CN108548895A CN108548895A CN201810276065.7A CN201810276065A CN108548895A CN 108548895 A CN108548895 A CN 108548895A CN 201810276065 A CN201810276065 A CN 201810276065A CN 108548895 A CN108548895 A CN 108548895A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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Abstract
The present invention provides the experimental provision and test method of a kind of mechanical collision spark initiation fuel gas or steam, including explosion ball main body, and the explosion ball main body is hollow structure；The ball main body upper outer that explodes is equipped with connecting rod controller, and the rod end of connecting rod controller gos deep into the hollow cavity of the explosion ball main body and connect with one end of torsiometer, and the other end of the torsiometer is hingedly connected with articulated linkage and swing connecting bar successively；Terminal pad is equipped in the middle part of the explosion ball main body, the terminal pad can be rotated around own central axis, and the terminal pad is articulated and connected with the swing connecting bar, and articulated connection position is located at the non-central location of the terminal pad；The swing connecting bar bottom is removably connected with collision stick, is equipped with bottom plate below the collision stick, the collision stick can collide under the drive of swing connecting bar with the bottom plate.The present invention can simulate mechanical collision spark common in industry as ignition source, study the characteristic rule of mechanical collision spark initiation fuel gas.
Description
Technical field
The invention belongs to mechanical detection equipment technical fields, and in particular to a kind of mechanical collision spark initiation fuel gas or
The experimental provision and test method of steam.
Background technology
It is easy to generate collision spark because of mechanical collision in industrial production, red-hot spark particle releases one within a very short time
Fixed heat, when the energy for colliding spark is more than the minimum ignition energy of gas, the combustible gas in the ambient enviroment that can ignite
Body.For mechanical collision spark as one of ignition source common in industrial production, danger is self-evident, so research machinery is hit
The characteristic rule for hitting spark initiation fuel gas is particularly significant.The experimental facilities main Types that analog mechanical strikes spark at present have
Weight percussion device, ballistic impact device and side-swipe device are fallen, in contrast, side-swipe device is easier to ignite flammable
Gas.The experiment for simulating side-swipe spark initiation fuel gas is hit seldom, and substantially belongs to illustrative experimental provision, existing
Experimental provision the degree of automation it is relatively low, and the energy size of mechanical impact spark cannot be weighed, for research mechanical spark fire
The value of calamity danger is limited.
Invention content
The present invention is the combustion characteristics and rule for research mechanical collision spark initiation imflammable gas or steam, it is proposed that
Can the spark device that a kind of analog mechanical side-swipe generates, the mechanical spark for testing certain energy ignite explosion cavity
Interior fuel gas or steam, and compared with the minimum ignition energy of the gas, it can be derived that flammable in the explosion chamber body that ignites
The least energy of mechanical impact spark and its probability that ignites needed for gas.
The mechanical collision spark initiation fuel gas of the present invention or the experimental provision of steam, including explosion ball main body, it is described
Explosion ball main body is hollow structure；The explosion ball main body upper outer is equipped with connecting rod controller, the bar of the connecting rod controller
End is goed deep into the hollow cavity of the explosion ball main body and is connect with one end of torsiometer, and the other end of the torsiometer is cut with scissors successively
It is connected to articulated linkage and swing connecting bar in succession；Terminal pad is equipped in the middle part of the explosion ball main body, the terminal pad can be around itself
Central axis, the terminal pad are articulated and connected with the swing connecting bar, and articulated connection position is located at the non-central of the terminal pad
Position；The swing connecting bar bottom is removably connected with collision stick, is equipped with bottom plate below the collision stick, the collision stick can
It collides with the bottom plate under the drive of swing connecting bar.
Wherein, the explosion ball main body is exploded cavity using general 20L in explosion research in the world, material be it is double-deck not
Become rusty steel construction.The quartz glass window of an a diameter of 110mm is configured in the explosion ball main body.
Wherein, it is equipped with sealing cover above the explosion ball main body, the connecting rod controller enters institute by the sealing cover
The hollow cavity of explosion ball main body is stated, the connecting rod controller is connect with the junction high pressure sealing of the sealing cover.
Wherein, the articulated connection position of the terminal pad and the swing connecting bar be located at the swing connecting bar with it is described hinged
The lower section of the articulated connection position of connecting rod.It is furthermore preferred that articulated connection position and institute of the terminal pad with the swing connecting bar
State that swing connecting bar is close to each other at a distance from the articulated connection position of the articulated linkage, the 1/ of the about described swing connecting bar length
20~1/3.
Wherein, the bottom base plate is equipped with lifting gear.
Wherein, connecting detection device, such as Shock inductor, contact pressure sensor etc. are additionally provided on the bottom plate.
Wherein, the explosion ball main body is connected with pumped vacuum systems, and the pumped vacuum systems includes vacuum pump and solenoid valve,
The explosion ball main body vacuumizes interface equipped with what is be connected to hollow cavity, and the interface that vacuumizes passes through pipeline and vacuum pump
Connection, solenoid valve are set to the unlatching of control piper and closure on pipeline.The vacuum pump uses rotary-vane vaccum pump, and configures
Filter.
Wherein, the explosion ball main body is connected with air distribution system, and the air distribution system includes fuel gas gas cylinders group, described
Explosion ball main body is equipped with the distribution interface being connected to hollow cavity, and the distribution interface passes through pipeline and fuel gas gas cylinders group
Connection.The fuel gas gas cylinders group is made of several gas cylinders for holding different fuel gas, and each gas cylinder is independent
Configure solenoid valve.
Wherein, the explosion ball main body is connected with gas-circulating system, and the gas-circulating system includes air pump, described quick-fried
Fried ball main body is equipped with the circulating air interface being connected to hollow cavity, and the circulating air interface is connect by pipeline with air pump.
Further, the explosion ball main body vacuumize interface, distribution interface and any two in circulating air interface or
Three can share.
Wherein, temperature sensor and/or pressure sensor are also set up in the explosion ball main body.
The present invention also provides the test sides that mechanical collision spark initiation fuel gas or steam are carried out using above-mentioned apparatus
Method includes the following steps：
The first step determines the type of collision metal, and the collision stick of the material is mounted on swing connecting bar bottom end；
Second step passes through the position of lifting gear regulating base board, it is ensured that with bottom plate effective collision can occur for collision stick；
Third walks, the gas needed for filling test into explosion ball main body；
4th step, during primary collision, setting torsional moment and operator link controller make collision stick be sent out with bottom plate
Raw effective collision；It is observed when explosion phenomenon generates；
5th step, the gas in explosion chamber if primary collision cannot ignite, repeatedly the 4th step carry out impact test again,
If collision frequency reaches the fuel gas that time cannot still ignite, repeatedly the 4th step and increases torque and carry out that next energy level is other to touch
Hit experiment；
6th step after the test restores gas in explosion ball main body to conventional sense.
Compared with prior art, the present invention has the advantage that：
1, mechanical collision spark common in simulation industry studies mechanical collision spark initiation fuel gas as ignition source
Characteristic rule.
2, the explosion ball main body explosive risk of apparatus of the present invention is high, and is provided with the form convenient for observation, convenient for experiment
Person observes phenomenon.
3, apparatus of the present invention measure the torque magnitude of swing connecting bar using torsiometer, and whether test under the energy can ignite
Fuel gas in explosion chamber body, and compared with the minimum ignition energy of fuel gas, show that the machinery needed for fuel gas that ignites is hit
Hit the least energy of spark and its probability that ignites, it is as a result accurate reliable.
4, the collision stick and bottom plate of apparatus of the present invention can be changed, and can measure different metal and hit to different combustible gases
Body ignites the influence of situation.
5, the present apparatus is provided with connecting detection device, for detecting whether bottom plate contacts with collision stick, if not in contact with good,
Experimenter is then prompted, ensures the validity tested every time.
6, the present apparatus is except using temperature and pressure sensor in addition to visually observing phenomenon, is added, record mechanical collision is fiery in real time
Flower ignite fuel gas temperature and pressure variation.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of explosion ball body interior；
Fig. 2 is overall structure diagram.
Specific implementation mode
In order to better understand the present invention, the present invention is further described with reference to specific attached drawing.
The mechanical collision spark initiation fuel gas of the present invention or the experimental provision of steam, including 100 (figure of explosion ball main body
1), the explosion ball main body 100 is hollow structure；100 upper outer of explosion ball main body is equipped with connecting rod controller 101, institute
The rod end for stating connecting rod controller 101 gos deep into the hollow cavity of the explosion ball main body 100 and is connect with one end of torsiometer 108,
The other end of the torsiometer 108 is hingedly connected with articulated linkage 109 and swing connecting bar 111 successively；The explosion ball main body 100
Middle part is equipped with terminal pad 110, and the terminal pad 110 can be rotated around own central axis, the terminal pad 110 and the swing connecting bar
111 articulated connections, articulated connection position are located at the non-central location of the terminal pad 110；111 bottom of the swing connecting bar is removable
It unloads and is connected with collision stick 104,104 lower section of the collision stick is equipped with bottom plate 106, and the collision stick 104 can be in swing connecting bar 111
Drive under collide with the bottom plate 106.
Wherein, the ball main body 100 of exploding 20L explosion cavitys more general in preferentially being studied using explosion in the world,
Material is double-layer stainless steel structure (304 stainless steel), can bear the blast impulse pressure of 2.0MPa.The explosion ball main body 100
On can also configure the quartz glass window of an a diameter of 110mm, convenient for observing experimentation.
Wherein, 100 top of the explosion ball main body is equipped with sealing cover 102, and the connecting rod controller 101 passes through the sealing
Lid 102 enters the hollow cavity of the explosion ball main body 100, the junction of the connecting rod controller 101 and the sealing cover 102
High pressure sealing connects, can bear explosion overpressure as standard.
Wherein, it is preferred that the terminal pad 110 and the articulated connection position of the swing connecting bar 111 are located at the swing
The lower section of connecting rod 111 and the articulated connection position of the articulated linkage 109.It is furthermore preferred that the terminal pad 110 and the swing
Articulated connection position and the swing connecting bar 111 phase at a distance from the articulated connection position of the articulated linkage 109 of connecting rod 111
It is mutually close, the 1/20~1/3 of about described 111 length of swing connecting bar so that the amplitude of fluctuation and torque of swing connecting bar 111 are convenient for
Amplification and control.
Wherein, 106 bottom of the bottom plate is equipped with lifting gear 105, can adjust the position of bottom plate 106 as needed, real
Existing effective collision.
Wherein, connecting detection device, such as Shock inductor, contact pressure sensor are additionally provided on the bottom plate 106
Deng whether capable of colliding and contact with bottom plate 106 for accurately incuding collision stick 104, and prompt experimenter, compared to passing through
The naked-eye observation of quartz glass window is more accurate.
Wherein, the explosion ball main body 100 is connected with pumped vacuum systems 200 (Fig. 2), and the pumped vacuum systems 200 includes
Vacuum pump 201 and solenoid valve 202, the explosion ball main body 100 vacuumize interface 103, institute equipped with what is be connected to hollow cavity
State and vacuumize interface 103 and connect with vacuum pump 201 by pipeline, solenoid valve 202 be set on pipeline the unlatching of control piper and
It is closed.Rotary-vane vaccum pump, and the configurating filtered device may be used in the vacuum pump 201.
Wherein, the explosion ball main body 100 is connected with air distribution system 300 (Fig. 2), and the air distribution system 300 includes flammable
Gas cylinders group 301, the explosion ball main body 100 are equipped with the distribution interface 107 being connected to hollow cavity, the distribution interface
107 are connect by pipeline with fuel gas gas cylinders group 301.The fuel gas gas cylinders group 301 holds different combustible gases by several
The gas cylinder of body forms, and solenoid valve is separately configured in each gas cylinder, different for being inputted into explosion ball main body 100
Combustible gas.
Wherein, the explosion ball main body 100 is connected with gas-circulating system 400 (Fig. 2), the gas-circulating system 400
Including air pump 401, the explosion ball main body 100 is equipped with the circulating air interface being connected to hollow cavity, the circulating air interface
It is connect with air pump 401 by pipeline.Gas-circulating system 400, which is used to realize the gas in explosion ball main body 100, stirs purpose,
After the completion of air distribution system 300 is to distribution in explosion ball main body 100, constantly gas is extracted and is pumped into out by air pump 401, to reach
To mixing effect.
Further, times of the explosion ball main body 100 vacuumized in interface 103, distribution interface 107 and circulating air interface
Anticipating, two or three can be shared, and can carry out the switching of gas circuit when shared by configuring triple valve or four-way valve etc..Institute in Fig. 2
Show that circulating air interface is shared interface with distribution interface 107.
Wherein, temperature sensor and/or pressure sensor can also be set in the explosion ball main body 100, detects in real time
The variation of temperature and pressure in hollow cavity.Preferably, temperature sensor is located at the bottom plate of the hollow cavity of explosion ball main body 100
Top is at outer wall, quantity 1, and temperature-measuring range is -70~400 DEG C, and precision is 0.1 DEG C；Pressure sensor is located at explosion ball
The centre position of the hollow cavity of main body 100 is at outer wall, quantity 1, pressure test ranging from -0.1~2MPa, and precision is
0.001MPa。
The method and step that device using the present invention carries out experimental implementation is as follows：
The first step determines the type of collision metal, and the collision stick 104 of the material is mounted on 111 bottom end of swing connecting bar；
Second step is visually observed or by the position of 105 regulating base board 106 of lifting gear by connecting detection device
Ensure that effective collision can be occurred with bottom plate 106 by colliding stick 104；
Third walks, and the air to explode in ball main body 100 is evacuated to vacuum by pumped vacuum systems 200, to be about that 0kPa is
It is excellent；Imflammable gas or steam is added into explosion ball main body 100 by air distribution system 300, is calculated according to intrinsic standoff ratio, makes addition
Imflammable gas or steam a concentration of aimed concn；Air is added into explosion ball main body 100 by air distribution system 300,
The pressure of explosion ball main body 100 is set to reach normal pressure；Gas-circulating system 400 is opened, the Gas Stirring in explosion ball main body 100 is made
Uniformly；
4th step starts connecting rod controller 101 during primary collision, and active force passes sequentially through torsiometer 108 and hinge
Connective pole 109 is transferred to swing connecting bar 111, and swing connecting bar 111 is made to be lifted by upward swings, drives the collision stick of its bottom
104 are lifted up, and leave bottom plate 106, while torsiometer 108 can measure torsional moment；Then operator link controller 101 is released
Swing connecting bar 111 to be put, so that collision stick 104 is fallen and collides with bottom plate 106, collision can generate collision spark, if spark
Energy is sufficiently large, the fuel gas that can be ignited in hollow cavity, generates blast pressure and flame, explosion phenomenon can be by regarding
Window is observed, and can also be reacted by temperature sensor and pressure sensor；
5th step, the gas in explosion chamber if primary collision cannot ignite, repeatedly the 4th step carry out impact test again,
If collision frequency reaches 200 fuel gas that cannot still ignite, repeatedly the 4th step and increases torque and carry out next energy rank
Impact test；
6th step is extracted out by the gas in ball main body 100 that will explode of pumped vacuum systems 200, then is passed through after the test
Air is added to normal pressure in air distribution system 300, repeats the step 3 time.
The present apparatus can accurately control and measure the concentration and collision torque of fuel gas, by connecting rod controller 101, turn round
The linkage design of power meter 108, articulated linkage 109, swing connecting bar 111 etc. so that the amplitude of fluctuation of swing connecting bar 111 down to small
And it is accurate, pyrophoric process is produced in accurate analog mechanical side-swipe, to study the spy of mechanical collision spark initiation fuel gas
Sign rule provides guarantee.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. the experimental provision of a kind of mechanical collision spark initiation fuel gas or steam, including explosion ball main body (100), described quick-fried
Fried ball main body (100) is hollow structure；Explosion ball main body (100) upper outer is equipped with connecting rod controller (101), the company
The rod end of rod controller (101) gos deep into the hollow cavity of the explosion ball main body (100) and connects with one end of torsiometer (108)
It connects, the other end of the torsiometer (108) is hingedly connected with articulated linkage (109) and swing connecting bar (111) successively；The explosion
Terminal pad (110) is equipped in the middle part of ball main body (100), the terminal pad (110) can rotate around own central axis, the terminal pad
(110) it is articulated and connected with the swing connecting bar (111), articulated connection position is located at the non-central location of the terminal pad (110)；
Swing connecting bar (111) bottom is removably connected with collision stick (104), and bottom plate is equipped with below the collision stick (104)
(106), the collision stick (104) can collide under the drive of swing connecting bar (111) with the bottom plate (106).
2. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
The explosion ball main body (100) is double-layer stainless steel structure using 20L explosion cavitys, material；On the explosion ball main body (100)
Configure the quartz glass window of an a diameter of 110mm.
3. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
Sealing cover (102) is equipped with above the explosion ball main body (100), the connecting rod controller (101) passes through the sealing cover (102)
Into the hollow cavity of the explosion ball main body (100), the connection of the connecting rod controller (101) and the sealing cover (102)
Locate high pressure sealing connection.
4. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
The terminal pad (110) and the articulated connection position of the swing connecting bar (111) are located at the swing connecting bar (111) and the hinge
The lower section of the articulated connection position of connective pole (109)；Preferably, the hinge of the terminal pad (110) and the swing connecting bar (111)
It is close to each other at a distance from the articulated connection position of the articulated linkage (109) to connect link position and the swing connecting bar (111),
The 1/20~1/3 of about described swing connecting bar (111) length.
5. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
Bottom plate (106) bottom is equipped with lifting gear (10)；It is additionally provided with connecting detection device on the bottom plate (106).
6. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
The explosion ball main body (100) is connected with pumped vacuum systems (200), the pumped vacuum systems (200) include vacuum pump (201) and
Solenoid valve (202), the explosion ball main body (100) vacuumize interface (103) equipped with what is be connected to hollow cavity, and the pumping is true
Null interface (103) is connect by pipeline with vacuum pump (201), solenoid valve (202) be set on pipeline the unlatching of control piper and
It is closed；The vacuum pump (201) uses rotary-vane vaccum pump, and the configurating filtered device.
7. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
The explosion ball main body (100) is connected with air distribution system (300), and the air distribution system (300) includes fuel gas gas cylinders group
(301), the explosion ball main body (100) is equipped with the distribution interface (107) being connected to hollow cavity, the distribution interface
(107) it is connect with fuel gas gas cylinders group (301) by pipeline；The fuel gas gas cylinders group (301) holds difference by several
The gas cylinder of fuel gas forms, and solenoid valve is separately configured in each gas cylinder.
8. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
The explosion ball main body (100) is connected with gas-circulating system (400), and the gas-circulating system (400) includes air pump
(401), the explosion ball main body (100) is equipped with the circulating air interface being connected to hollow cavity, and the circulating air interface passes through
Pipeline is connect with air pump (401).
9. the experimental provision of mechanical collision spark initiation fuel gas according to claim 1 or steam, which is characterized in that
Temperature sensor and/or pressure sensor are also set up in the explosion ball main body (100).
10. using claim 1-9 any one of them mechanical collision spark initiation fuel gas or steam experimental provision into
The method of row test, includes the following steps：
The first step determines the type of collision metal, and the collision stick (104) of the material is mounted on swing connecting bar (111) bottom end；
Second step passes through the position of lifting gear (105) regulating base board (106), it is ensured that collision stick (104) can be with bottom plate
(106) effective collision occurs；
Third walks, the gas needed for filling test into explosion ball main body (100)；
4th step, during primary collision, setting torsional moment and operator link controller (101), make collision stick (104) with
Effective collision occurs for bottom plate (106)；It is observed when explosion phenomenon generates；
5th step, the gas in explosion chamber if primary collision cannot ignite, repeatedly the 4th step carries out impact test again, if touching
It hits number and reaches (200) secondary fuel gas that cannot still ignite, then repeatedly the 4th step and increase torque to carry out next energy level other
Impact test；
6th step after the test restores explosion ball main body (100) interior gas to conventional sense.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276065.7A CN108548895B (en) | 2018-03-29 | 2018-03-29 | Experimental device and test method for igniting combustible gas or steam through mechanical collision spark |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276065.7A CN108548895B (en) | 2018-03-29 | 2018-03-29 | Experimental device and test method for igniting combustible gas or steam through mechanical collision spark |
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| Publication Number | Publication Date |
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| CN108548895A true CN108548895A (en) | 2018-09-18 |
| CN108548895B CN108548895B (en) | 2021-08-20 |
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| CN201810276065.7A Active CN108548895B (en) | 2018-03-29 | 2018-03-29 | Experimental device and test method for igniting combustible gas or steam through mechanical collision spark |
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| CN111999244A (en) * | 2020-09-03 | 2020-11-27 | 应急管理部天津消防研究所 | Mechanical spark ignition probability test simulation device capable of automatically adjusting torsion |
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| CN111025123A (en) * | 2019-11-21 | 2020-04-17 | 南阳防爆电气研究所有限公司 | Spark test equipment and use method thereof, and method for optimizing non-intrinsic safety circuit into intrinsic safety circuit |
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| CN111999244B (en) * | 2020-09-03 | 2023-09-22 | 应急管理部天津消防研究所 | Mechanical spark ignition probability test simulation device capable of automatically adjusting torsion |
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| Publication number | Publication date |
|---|---|
| CN108548895B (en) | 2021-08-20 |
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