CN206804567U - Hot loose coal body induces flammable explosion hazard gases blast coupling test device - Google Patents
Hot loose coal body induces flammable explosion hazard gases blast coupling test device Download PDFInfo
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- CN206804567U CN206804567U CN201720672841.6U CN201720672841U CN206804567U CN 206804567 U CN206804567 U CN 206804567U CN 201720672841 U CN201720672841 U CN 201720672841U CN 206804567 U CN206804567 U CN 206804567U
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Abstract
The utility model discloses a kind of hot loose coal body to induce flammable explosion hazard gases blast coupling test device, including coal body reactor, heated for controlling temperature subsystem, distribution subsystem, data acquisition subsystem and host computer, coal body reactor includes the transparent vessel of both ends open, block the insulation plug of transparent vessel, the fastener of fixed insulation plug and the basket being arranged in transparent vessel, venting of dust explosion hole is provided with the side wall of transparent vessel, venting of dust explosion is provided with detonating fusee on hole, heated for controlling temperature subsystem includes temperature control modules, heating wire, temperature measurer, temperature control thermocouple wire, distribution subsystem includes automatic distributing instrument, unisexuality combustion gas bottle and air bottle, data acquisition subsystem includes image dynamic acquisition instrument, gas analysis unit, flame sensor, temperature sensor and pressure sensor.The utility model can be used for accurately testing flammable explosion hazard gases and hot loose coal body explosivity and mutually promote relation, and reusable, determine respectively it is a variety of under the conditions of each parameter Evolution.
Description
Technical field
The utility model belongs to loose coal induction flammable gas explosion technical field, and in particular to a kind of hot loose coal
Body induces flammable explosion hazard gases blast coupling test device.
Background technology
In recent years, as seam mining technique, technology are constantly progressive and depth increases, caused by mine heat power disaster thing
Therefore generation is extremely frequent, wherein gas explosion and coal spontaneous combustion accident are with disguise is strong, prediction is inaccurate, difficulty of governance
The distinguishing features such as greatly, consequence is serious.In the heat power disaster accident that colliery occurs, in most cases there is loose coal to have
Close, wherein death toll caused by the gas explosion relevant with loose coal accounts for more than 80%, but when hidden high temperature pine
When scattered coal body can not be completely oxidized, CO, C can be generated2H4、C2H2Deng flammable explosive gas, this has aggravated blast to a certain extent
Dangerous and consequence.Although other flammable explosive gas and the feature of loose coal mixed explosion are not yet clear and definite, after mixing
Brisance is more stronger than the blast of flammable explosive gas or loose coal single factors, when goaf or tunnel even coal
A variety of physical-chemical reactions can occur under the influence of flammable explosive gas detonation for layer internal high temperature loose coal, and generation is substantial amounts of
Poisonous and harmful product simultaneously produces stronger shock wave, the safety of life and property of serious threat miner.So in Coal Mine Disasters thing
In therefore, flammable explosive gas explosion accident existing for loose coal can cause to have a strong impact on to Safety of Coal Mine Production, while also pole
The paces of coal industry advance are constrained in big degree.Flammable explosive gas, loose coal mixed explosion characteristic are studied to grasping
Its failure law and the particularly serious Coal Mine Disasters of prevention and control are significant；But the research at present on this respect is seldom,
Therefore, particle size of loose coal, temperature, flammable explosive gas concentration can be carried out to loose coal by inflammable easy by nowadays lacking one kind
The influence of quick-fried gas explosion limit, and the pressure of flammable explosive gas loose coal mixed explosion, temperature, gaseous product, fire
Flame, the hot loose coal body of evolution properties of flue gas cloud induce flammable explosion hazard gases blast coupling test device, are underground coal mine
The prevention and control and rescue of particularly serious heat power disaster accident provide underlying parameter.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of high temperature
Loose coal induces flammable explosion hazard gases blast coupling test device, and it is novel in design rationally, flammable easy available for accurately testing
Gas explosion body and hot loose coal body explosivity are mutually promoted relation, and reusable, determine respectively it is a variety of under the conditions of each parameter
Evolution, to mine coal burning hot dynamic disaster preventing and treating there is great directive significance.
In order to solve the above technical problems, the technical solution adopted in the utility model is：The induction of hot loose coal body is flammable easily
Quick-fried gas burst coupling test device, it is characterised in that：Coal body reactor, control experiment including holding loose experiment coal grain
The heated for controlling temperature subsystem of coal grain temperature, the distribution subsystem to the flammable explosion hazard gases of coal body reactor conveying, collection institute
State the data acquisition subsystem of coal body reactor test data and the host computer for test data analysis, the coal body reactor
The transparent vessel placed including both ends open and vertically, the insulation plug for blocking transparent vessel opening, the fixed insulation plug it is tight
Firmware and the basket being arranged in transparent vessel, experiment coal grain are arranged in basket, and basket inside bottom is provided with insulating paper, thoroughly
Venting of dust explosion hole is provided with the side wall of bright container, detonating fusee is provided with venting of dust explosion hole, the heated for controlling temperature subsystem includes being arranged on
Temperature control modules outside transparent vessel and connect with temperature control modules and stretch to and be used for Heating Experiment coal in basket
The heating wire of grain, the temperature measurer for gathering the heating-up temperature for testing coal grain, test heat caused by coal grain after being heated for collection
The temperature control thermocouple wire of electromotive force data, temperature detect switch (TDS), temperature control are provided with the thermocouple wire section that temperature control thermocouple wire is located at outside basket
Molding block is connected with host computer, and the distribution subsystem includes automatic distributing instrument and connected with automatic distributing instrument gas inlet tube
Unisexuality combustion gas bottle and air bottle, automatic distributing instrument connected by gas outlet tube with transparent vessel bottom, and the data are adopted
Subsystem, which includes being arranged on image dynamic acquisition instrument on the outside of transparent vessel, stretches into transparent vessel takes gas and detects transparent vessel
The gas analysis unit of interior gaseous product composition, the flame sensor being arranged on basket lateral surface, it is arranged on outside transparent vessel
Temperature sensor and pressure sensor in side wall, image dynamic acquisition instrument and automatic distributing instrument are by isochronous controller by upper
Machine controls.
Above-mentioned hot loose coal body induces flammable explosion hazard gases blast coupling test device, it is characterised in that：The guarantor
Wen Sai includes the second insulation plug at the top of the first insulation plug and closure transparent vessel of closure transparent vessel bottom, the fastener
The first pressing plate of the first insulation plug and being arranged at the top of the second insulation plug is fixed including being arranged on the first insulation plug bottom and fixes the
Second pressing plate of two insulation plugs, and for fastening the screw rod of the first pressing plate and the second pressing plate, screw rod fasten the first pressing plate and the
The both ends of two pressing plates are mounted on nut, and basket is suspended in the second insulation plug bottom by adiabatic silk.
Above-mentioned hot loose coal body induces flammable explosion hazard gases blast coupling test device, it is characterised in that：The fire
Flame sensor is connected by flame data collecting instrument with host computer, and temperature sensor is connected by temperature polling instrument with host computer,
Pressure sensor with pressure logging with host computer by being connected.
Above-mentioned hot loose coal body induces flammable explosion hazard gases blast coupling test device, it is characterised in that：The temperature
The quantity of degree sensor and pressure sensor is multiple, between multiple temperature sensors wait along transparent vessel length direction is linear
Away from being arranged on transparent vessel lateral wall, multiple pressure sensors are linearly set in qually spaced in along transparent vessel length direction
In bright container outside wall, transparent vessel is cylindric transparent vessel, and multiple temperature sensors are symmetrically set with multiple pressure sensors
Put the pressure gauge being provided with the axis both sides of transparent vessel, transparent vessel for gathering transparent vessel internal pressure value.
Above-mentioned hot loose coal body induces flammable explosion hazard gases blast coupling test device, it is characterised in that：The list
Property combustion gas bottle quantity to be multiple, the unisexuality fuel gas of storage is different in multiple unisexuality combustion gas bottles.
Above-mentioned hot loose coal body induces flammable explosion hazard gases blast coupling test device, it is characterised in that：The gas
Body analytic unit includes vacuum gas cylinder, four-way valve and the gas chromatographicanalyzer for detecting vacuum gas cylinder composition of gases within, vacuum gas
On the pipeline that connect with transparent vessel of bottle, on the pipeline that unisexuality combustion gas bottle connects with automatic distributing instrument, air bottle and automatically
Flowmeter is provided with the pipeline of distributing instrument connection, the signal output part of flowmeter connects with the input of host computer, automatically
Be provided with the pipeline that distributing instrument connects with transparent vessel and on pipeline that transparent vessel connects with vacuum gas cylinder non-return valve,
For controlling gas stream to open up the magnetic valve of pass and triple valve for controlling air venting, the triple valve does not access pipeline
One end is provided with relief tube, and the first port of four-way valve connects with vacuum gas cylinder, and the second port of four-way valve is with being connected vacuum gas
The pipeline connection of bottle and transparent vessel, the 3rd port of four-way valve connect with gas chromatographicanalyzer, the 4th port of four-way valve
Connected with by the aspiration pump of PC control, be mounted on unisexuality combustion gas bottle and air bottle pressure-reducing valve, pressure tester,
Gas cylinder switchs and sealing ring.
Above-mentioned hot loose coal body induces flammable explosion hazard gases blast coupling test device, it is characterised in that：The figure
Picture dynamic collecting instrument is high-speed camera, and the high-speed camera is arranged on adjustable for height A-frame.
The utility model has advantages below compared with prior art：
1st, image dynamic acquisition instrument can be achieved by setting adiabatic silk that basket is suspended in transparent vessel in the utility model
The comprehensive flammable explosion hazard gases explosive view picture of observation loose coal high temperature induction, flame sensor is arranged on the outside of basket and adopted
Collect loose coal high-temp solid particulate constituent, temperature sensor and pressure sensor are arranged on transparent vessel lateral wall
The harm power that explosion hazard gases blast that collection loose coal high temperature induction is flammable is brought to surrounding environment, is easy to promote the use of.
2nd, the utility model in the side wall of transparent vessel by setting venting of dust explosion hole and detonating fusee, when the pressure in transparent vessel
When power is not up to the pressure threshold that transparent vessel can be born, detonating fusee closure venting of dust explosion hole makes transparent vessel closed；Work as transparent vessel
When interior pressure reaches the pressure threshold that transparent vessel can be born, detonating fusee is released to pressure in transparent vessel, is avoided quick-fried
The fried damage brought to transparent vessel, it is reusable, input cost is reduced, reliable and stable, using effect is good.
3rd, the utility model is by setting distribution subsystem to prepare flammable explosion hazard gases in transparent vessel, using matching somebody with somebody automatically
Gas instrument avoids the desired amount of mixed gas delivery of required concentration to transparent vessel straight using unisexuality combustion gas bottle and air bottle
The problem of connecing the concentration from mixed gas to transparent vessel conveying mixed gas and unmanageable dosage that cause；In addition, gas is set
Analysis of the analytic unit to the flammable explosion hazard gases explosion product of loose coal high temperature induction, complete function.
In summary, the utility model is novel in design rationally, available for accurately testing flammable explosion hazard gases and hot loose
Coal body explosivity is mutually promoted relation, and reusable, determine respectively it is a variety of under the conditions of each parameter Evolution, to mine
Coal fire heat power diaster prevention and control has great directive significance.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is schematic block circuit diagram of the present utility model.
Description of reference numerals:
1-transparent vessel；The insulation plugs of 2-1-first；The insulation plugs of 2-2-second；
The pressing plates of 3-1-first；The pressing plates of 3-2-second；4-screw rod；
5-nut；6-adiabatic silk；7-basket；
8-experiment coal grain；9-temperature control modules；11-temperature control thermocouple wire；
12-temperature detect switch (TDS)；13-temperature measurer；14-heating wire；
15-insulating paper；16-pressure gauge；17-venting of dust explosion hole；
18-detonating fusee；The non-return valves of 19-1-first；The non-return valves of 19-2-second；
The triple valves of 20-1-first；The triple valves of 20-2-second；The relief tubes of 21-1-first；
The relief tubes of 21-2-second；22-flowmeter；22-1-first flowmeter；
22-2-second flowmeter；The magnetic valves of 23-1-first；The electromagnetism of 23-2-second；
24-four-way valve；25-gas cylinder switchs；26-vacuum gas cylinder；
27-aspiration pump；28-gas chromatographicanalyzer；29-flame sensor；
30-flame data collecting instrument；31-temperature sensor；32-temperature polling instrument；
33-pressure sensor；34-pressure logging；35-unisexuality combustion gas bottle；
36-air bottle；37-pressure tester；38-automatic distributing instrument；
39-isochronous controller；40-A-frame；41-high-speed camera；
42-host computer；44-sealing ring；50-valve group.
Embodiment
As depicted in figs. 1 and 2, hot loose coal body described in the utility model induces flammable explosion hazard gases blast coupling to survey
Trial assembly is put, including hold the coal body reactor of loose experiment coal grain 8, the temperature of control experiment coal grain 8 heated for controlling temperature subsystem,
The distribution subsystem of flammable explosion hazard gases is conveyed to the coal body reactor, gathers the data of the coal body reactor test data
Acquisition subsystem and the host computer 42 for test data analysis, what the coal body reactor included both ends open and vertically placed
Insulation plug that transparent vessel 1, closure transparent vessel 1 are open, the fastener of the fixed insulation plug and it is arranged in transparent vessel 1
Basket 7, experiment coal grain 8 is arranged in basket 7, and the inside bottom of basket 7 is provided with insulating paper 15, in the side wall of transparent vessel 1
Venting of dust explosion hole 17 is provided with, detonating fusee 18 is provided with venting of dust explosion hole 17, the heated for controlling temperature subsystem includes being arranged on transparent vessel 1
Outer temperature control modules 9 and connect with temperature control modules 9 and stretch in basket 7 for Heating Experiment coal grain 8
Heating wire 14, the temperature measurer 13 for gathering the heating-up temperature for testing coal grain 8, tested after being heated for collection caused by coal grain 8
The temperature control thermocouple wire 11 of thermo-electromotive force data, temperature detect switch (TDS) is provided with the thermocouple wire section that temperature control thermocouple wire 11 is located at outside basket 7
12, temperature control modules 9 are connected with host computer 42, and the distribution subsystem includes automatic distributing instrument 38 and and automatic distributing
The unisexuality combustion gas bottle 35 and air bottle 36 of the gas inlet tube of instrument 38 connection, automatic distributing instrument 38 pass through gas outlet tube and transparent appearance
The bottom of device 1 connects, and the data acquisition subsystem includes being arranged on the image dynamic acquisition instrument in the outside of transparent vessel 1, stretched into
Bright container 1 takes gas and detects the gas analysis unit of gaseous product composition in transparent vessel 1, is arranged on the lateral surface of basket 7
Flame sensor 29, the temperature sensor 31 and pressure sensor 33 being arranged on the lateral wall of transparent vessel 1, image dynamic acquisition
Instrument and automatic distributing instrument 38 are controlled by isochronous controller 39 by host computer 42.
In the present embodiment, the insulation plug includes the first insulation plug 2-1 of closure transparent vessel 1 bottom and blocks transparent appearance
The second insulation plug 2-2 at the top of device 1, the fastener fix the first insulation plug 2-1 including being arranged on the first insulation plug 2-1 bottoms
The first pressing plate 3-1 and be arranged at the top of the second insulation plug 2-2 and fix the second insulation plug 2-2 the second pressing plate 3-2, and be used for
The first pressing plate 3-1 and the second pressing plate 3-2 screw rod 4 are fastened, the both ends that screw rod 4 fastens the first pressing plate 3-1 and the second pressing plate 3-2 are equal
Nut 5 is installed, basket 7 is suspended in the second insulation plug 2-2 bottoms by adiabatic silk 6.
It should be noted that the sealed transparent container 1 by the way of both ends clamp, in actual use, using 3~6 spiral shells
The the first pressing plate 3-1 of centrosymmetric fastening of bar 4 and the second pressing plate 3-2, the position that each screw rod 4 stretches out pressing plate is respectively mounted nut 5
For fastening transparent vessel 1.
It should be noted that the setting of transparent vessel 1 is to accommodate experiment coal grain 8, a reality is provided for experiment coal grain 8
The confined space tested, the setting one of adiabatic silk 6 is in order to which basket 7 is suspended in transparent vessel 1, is easy to implement image dynamic and adopts
Collect the comprehensive flammable explosion hazard gases explosive view picture of observation loose coal high temperature induction of instrument；Second, in order to reduce the heat of experiment coal grain 8
The loss of amount, reduce experimental error；Preferable transparent vessel 1 uses cylinder barrel shaped suprasil safety glass, and upper and lower ends are opened
Mouth is detachable, and preferable insulation plug uses alumina silicate felt insulation plug；Uncovered cube is made by common diameter 0.5mm steel wires in basket 7
Body, length, width and height are respectively：10cm, 8cm, 6cm, the side aperture of basket 7 are 0.1mm, and the bottom surface aperture of basket 7 is 1mm, basket
It is for the heat-insulated error for reducing experiment that 7 inside bottoms, which set insulating paper 15 1, second, in order to hold experiment coal grain 8, avoids reality
It is unrestrained to test coal grain 8, third, simply square in order to repeat processing basket 7 when hot loose coal body induces flammable explosion hazard gases explosion test
Just；In actual use, experiment coal grain 8 is dried using strainer filtering and through electric drying oven with forced convection, is set in the side wall of transparent vessel 1
The aperture of venting of dust explosion hole 17 put is 4cm, and detonating fusee 18 is provided with venting of dust explosion hole 17, when the pressure in transparent vessel is not up to transparent appearance
During the pressure threshold that device can be born, detonating fusee closure venting of dust explosion hole makes transparent vessel closed；When the pressure in transparent vessel reaches
During the pressure threshold that bright container can be born, detonating fusee is released to pressure in transparent vessel, avoid blast to transparent vessel with
And personal injury brings injury.
The setting of heated for controlling temperature subsystem is that temperature control modules 9 use in order to provide high-temperature heating to experiment coal grain 8
ND8000 temperature controllers, in actual use, ND8000 temperature controllers will test coal by Fluke2635T Temperature samplers
8 real time temperature data of grain and thermo-electromotive force are transmitted to host computer 42, Fluke 2635T Temperature sampler self-carried USBs data and passed
The USB jack of defeated module access host computer 42；ND8000 temperature controllers are connected with heating wire 14 and provide high temperature to experiment coal grain 8
Heating, and connect temperature measurer 13 and the temperature for testing coal grain 8 is acquired, ND8000 temperature controllers connection temperature control galvanic couple
Temperature detect switch (TDS) 12 is connected with the circuit of silk 11, when the heating-up temperature for testing coal grain 8 reaches the conduction value of temperature detect switch (TDS) 12, temperature
The thermo-electromotive force of the degree control measurement experiment coal grain 8 of thermocouple wire 11, otherwise, temperature control thermocouple wire 11 does not work.
The setting of distribution subsystem is in order to which the experiment coal grain 8 to hot loose provides flammable explosion hazard gases, using automatic
The desired amount of mixed gas delivery of required concentration to transparent vessel 1 is avoided using the He of unisexuality combustion gas bottle 35 by distributing instrument 38
Air bottle 36 directly conveys the problem of mixed gas causes the concentration and unmanageable dosage of mixed gas to transparent vessel 1.
It is to directly gather loose coal height that flame sensor 29 is arranged on into the outside of basket 7 in data acquisition subsystem
Warm solia particle constituent, it is low to avoid installing the flame data precision brought at a distance, and temperature sensor 31 and pressure are passed
It is to induce flammable explosive gas using transparent vessel 1 as hot loose coal body that sensor 33, which is arranged on the lateral wall of transparent vessel 1,
The region that body blast influences, the data that temperature sensor 31 and pressure sensor 33 gather can as loose coal high temperature induction
The harm power that combustion explosion hazard gases blast is brought to surrounding environment, using effect is good, and preferable temperature sensor 31 is using platinum tungsten electricity
Thermo wires, the platinum tungsten thermocouple wire range are 3000 DEG C, and measurement range is wide, and preferable pressure sensor 33 senses using without cavity pressure
Device CX-TJP3, the range of the no cavity pressure sensor CX-TJP3 is 5Mpa.
The setting of isochronous controller 39 be in order to control image dynamic collecting instrument and the working time of automatic distributing instrument 38, due to
Automatic distributing instrument 38 start for 1 distribution of transparent vessel when, mixed gas does not couple completely with hot loose coal body, reaction it is endless
Entirely, therefore, for the view data of image dynamic acquisition instrument collection without reference to meaning, setting automatic distributing instrument 38 is transparent vessel 1
The time of distribution, at the end of the distribution time, isochronous controller 39 controls the work of image dynamic collecting instrument, image dynamic acquisition instrument
The image information of collection is transmitted to host computer 42.
In the present embodiment, the flame sensor 29 is connected by flame data collecting instrument 30 with host computer 42, and temperature passes
Sensor 31 is connected by temperature polling instrument 32 with host computer 42, pressure sensor 33 by with pressure logging 34 and host computer 42
Connection.
In the present embodiment, the quantity of the temperature sensor 31 and pressure sensor 33 is multiple, multiple TEMPs
Device 31 is linearly set in qually spaced on the lateral wall of transparent vessel 1 along the length direction of transparent vessel 1, multiple edges of pressure sensor 33
The length direction of transparent vessel 1 is linearly set in qually spaced on the lateral wall of transparent vessel 1, and transparent vessel 1 is cylindric transparent appearance
Device, multiple temperature sensors 31 are symmetricly set on the axis both sides of transparent vessel 1, transparent vessel with multiple pressure sensors 33
The pressure gauge 16 for gathering the internal pressure value of transparent vessel 1 is provided with 1.
It should be noted that flame data collecting instrument 30 can receive the flame number that multiple flame sensors 29 gather simultaneously
According to simultaneously temperature polling instrument 32 can receive the temperature data that multiple temperature sensors 31 gather simultaneously, and pressure logging 34 can connect
The pressure data that multiple pressure sensors 33 gather is received, in actual use, temperature sensor 31 and pressure sensor 33 use
Four, the temperature value and pressure value of different height are gathered, measuring accuracy is high, and test is comprehensive.
In the present embodiment, the quantity of the unisexuality combustion gas bottle 35 is multiple, multiple internal memories of unisexuality combustion gas bottle 35
The unisexuality fuel gas put is different.
In the present embodiment, the gas analysis unit is included in vacuum gas cylinder 26, four-way valve 24 and detection vacuum gas cylinder 26
The gas chromatographicanalyzer 28 of gas componant, on the pipeline that vacuum gas cylinder 26 connects with transparent vessel 1, unisexuality combustion gas bottle 35
Flowmeter is provided with the pipeline connected with automatic distributing instrument 38, on the pipeline that air bottle 36 connects with automatic distributing instrument 38
22, the signal output part of flowmeter 22 connects with the input of host computer 42, the pipe that automatic distributing instrument 38 connects with transparent vessel 1
Non-return valve is provided with road and on pipeline that transparent vessel 1 connects with vacuum gas cylinder 26, for controlling gas stream to open up pass
Magnetic valve and triple valve for controlling air venting, one end that the triple valve does not access pipeline relief tube is installed, four
The first port of port valve 24 connects with vacuum gas cylinder 26, and the second port of four-way valve 24 is with being connected vacuum gas cylinder 26 and transparent vessel
1 pipeline connection, the 3rd port of four-way valve 24 connect with gas chromatographicanalyzer 28, the 4th port of four-way valve 24 with by upper
The aspiration pump 27 that position machine 42 controls is connected, and pressure-reducing valve, pressure test are mounted on unisexuality combustion gas bottle 35 and air bottle 36
Instrument 37, gas cylinder switch 25 and sealing ring 44.
It should be noted that flowmeter 22 includes first flowmeter 22-1, second flowmeter 22-2 and the 3rd flowmeter,
First flowmeter 22-1 is arranged on the pipeline that vacuum gas cylinder 26 connects with transparent vessel 1 and takes throughput for collection, and second
Flowmeter 22-2 is arranged on the pipeline that air bottle 36 connects with automatic distributing instrument 38 and for gathering air mass flow, the 3rd flow
Meter is arranged on the pipeline that unisexuality combustion gas bottle 35 connects with automatic distributing instrument 38 and for gathering unisexuality fuel gas flow；
Non-return valve includes the first non-return valve 19-1 and the second non-return valve 19-2, and magnetic valve includes the first magnetic valve 23-1 and second solenoid valve
23-2, triple valve include the first triple valve 20-1 and the second triple valve 20-2, the pipeline that transparent vessel 1 connects with vacuum gas cylinder 26
Upper setting prevents the first non-return valve 19-1 of the output gas of transparent vessel 1 backflow, for controlling the output gas of transparent vessel 1 to circulate
First magnetic valve 23-1 of switch and the first triple valve 20-1 for controlling the output gas pressure release of transparent vessel 1；Automatic distributing
The the second non-return valve 19-2 for preventing transparent vessel 1 from inputting gas backstreaming is set on the pipeline that instrument 38 connects with transparent vessel 1, is used for
Control transparent vessel 1 inputs gas stream and opens up the second solenoid valve 23-2 of pass and for controlling the output gas mistake of automatic distributing instrument 38
Amount, and then the second triple valve 20-2 of pressure release；Relief tube includes the first relief tube 21-1 and the second relief tube 21-2, the first threeway
One end that valve 20-1 does not access the pipeline that transparent vessel 1 connects with vacuum gas cylinder 26 is provided with the first relief tube 21-1, and the two or three
One end that port valve 20-2 does not access the pipeline that automatic distributing instrument 38 connects with transparent vessel 1 is provided with the second relief tube 21-2, the
One non-return valve 19-1, the second non-return valve 19-2, the first triple valve 20-1, the second triple valve 20-2, the first magnetic valve 23-1, second
Magnetic valve 23-2 and four-way valve 24 form valve group 50, and the valve group 50 is controlled by host computer 42.
In the present embodiment, described image dynamic collecting instrument is high-speed camera 41, and the high-speed camera 41 is arranged on height
Spend on adjustable A-frame 40.
Application method of the present utility model：Using strainer filtering experiment coal grain 8, place into basket 7 and done through electric heating air blast
Dry case is dry and with the experiment coal grain 8 after the filtering of the good weight of electronic balance weighing, installs coal body reactor；Then, coal is examined
The air-tightness of reactor according, it is provided for gathering the pressure gauge 16 of the internal pressure value of transparent vessel 1 on transparent vessel 1, works as pressure
Air pressure shakiness then illustrates that the sealing of transparent vessel 1 is not complete enough in the transparent vessel 1 that power table 16 gathers, and should check coal body reactor
Installation, until stable gas pressure；In the present embodiment, the mesh number of the filter screen is not less than 200 mesh；
Four-way valve 24 is started by host computer 42 and aspiration pump 27 works, by the first port of four-way valve 24 and the 4th port
Conducting, the vacuum gas that the aspiration pump 27 connected by the 4th port with four-way valve 24 connects the first port with four-way valve 24
Bottle 26 is evacuated to vacuum state；
Temperature control modules 9 control the heating wire 14 stretched in basket 7 to work, and experiment coal grain 8 is heated at high temperature
To temperature T；Then, the actual heating-up temperature of coal grain 8 is tested by the collection in real time of temperature measurer 13, and the reality of coal grain 8 will be tested
Heating-up temperature is transmitted to temperature control modules 9, when the actual heating-up temperature of experiment coal grain 8 reaches the closed temperature of temperature detect switch (TDS) 12
When, temperature control thermocouple wire 11 obtains the thermo-electromotive force of experiment coal grain 8, and the thermo-electromotive force for testing coal grain 8 is transported into temperature control mould
Block 9；In the present embodiment, the T is not less than 300 DEG C；
Automatic distributing instrument 38 is opened, is conveyed and contained into automatic distributing instrument 38 by unisexuality combustion gas bottle 35 and air bottle 36
There is the mixed gas of fuel gas, transparent vessel 1 be delivered to after preparing satisfactory mixed gas using automatic distributing instrument 38,
When the mixture pressure in transparent vessel 1 exceedes the carrying pressure threshold of transparent vessel 1, letting out on venting of dust explosion hole 17 is arranged on
The releasing pressure automatically of booster 18 regulation coal body reactor pressure balance；
The heating process Flame data of coal grain 8 are tested using the collection in real time of flame sensor 29, using temperature sensor 31
With the temperature and pressure that collection transparent vessel 1 is born in real time respectively of pressure sensor 33；Then, described image dynamic acquisition is adjusted
Blast coupling view data in instrument position preparation for acquiring transparent vessel 1, using isochronous controller 39 control automatic distributing instrument 38 to
After transparent vessel 1 conveys the mixed gas t periods, open described image dynamic collecting instrument and gather blast coupling in transparent vessel 1
View data is closed to transmit to host computer 42, meanwhile, four-way valve 24 can be started by host computer 42 and worked, by the first of four-way valve 24
Port and second port conducting carry out vacuum gas cylinder 26 and take gas；In the present embodiment, the t meets：3min≤t≤8min；Flame
Sensor 29 is passed by flame data collecting instrument 30 to the heating process Flame data of 42 transmission experiment coal grain of host computer 8, temperature
The temperature data that sensor 31 is born by temperature polling instrument 32 to the transmission transparent vessel 1 of host computer 42, pressure sensor 33 pass through
The pressure data born with pressure logging 34 to the transmission transparent vessel 1 of host computer 42；
After vacuum gas cylinder 26 takes depressed beam, the first port of four-way valve 24 and the 3rd port are turned on, utilize gas-chromatography
Analyzer 28 carries out constituent analysis to gas in vacuum gas cylinder 26 and transmits analysis result to host computer 42, meanwhile, host computer
The data of 42 pairs of collections carry out comprehensive analysis and pretreatment, and obtaining, which influences hot loose coal body, induces flammable explosion hazard gases blast coupling
The data and data storage of conjunction.
In actual use, operator can be according to the experiment dosage of coal grain 8, heated for controlling temperature subsystem heating-up temperature, distribution subsystem
The mixed gas concentration of system under unified central planning is different with dosage, is tested respectively in transparent vessel 1, obtains flammable explosion hazard gases and high temperature pine
Dissipate coal body explosivity to mutually promote the Evolutions of relation and explosive parameters, there is weight to the preventing and treating of mine coal burning hot dynamic disaster
Big directive significance.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. hot loose coal body induces flammable explosion hazard gases blast coupling test device, it is characterised in that：It is loose including holding
Test the coal body reactor of coal grain (8), the heated for controlling temperature subsystem of control experiment coal grain (8) temperature, to the coal body reactor
Convey the distribution subsystem of flammable explosion hazard gases, the data acquisition subsystem of the collection coal body reactor test data and be used for
The host computer (42) of test data analysis, the coal body reactor include both ends open and the transparent vessel (1) vertically placed, envelope
The insulation plug of stifled transparent vessel (1) opening, the fastener of the fixed insulation plug and the basket being arranged in transparent vessel (1)
(7), test coal grain (8) to be arranged in basket (7), basket (7) inside bottom is provided with insulating paper (15), transparent vessel (1)
Venting of dust explosion hole (17) is provided with side wall, detonating fusee (18) is provided with venting of dust explosion hole (17), the heated for controlling temperature subsystem includes setting
Put in the outer temperature control modules (9) of transparent vessel (1) and connect with temperature control modules (9) and stretch to basket (7)
The temperature measurer (13) of the interior heating-up temperature for the heating wire (14) of Heating Experiment coal grain (8), for gathering experiment coal grain (8),
The temperature control thermocouple wire (11) of thermo-electromotive force data caused by coal grain (8), temperature control thermocouple wire (11) position are tested after being heated for collection
In being provided with temperature detect switch (TDS) (12) in the thermocouple wire section of basket (7) outside, temperature control modules (9) are connected with host computer (42), institute
Stating distribution subsystem includes automatic distributing instrument (38) and the unisexuality combustible gas connected with automatic distributing instrument (38) gas inlet tube
Body bottle (35) and air bottle (36), automatic distributing instrument (38) are connected by gas outlet tube with transparent vessel (1) bottom, the data
Acquisition subsystem, which includes being arranged on image dynamic acquisition instrument on the outside of transparent vessel (1), stretches into transparent vessel (1) takes gas and detects
The gas analysis unit of the interior gaseous product composition of transparent vessel (1), the flame sensor being arranged on basket (7) lateral surface
(29) temperature sensor (31) and pressure sensor (33), being arranged on transparent vessel (1) lateral wall, image dynamic acquisition instrument
Controlled with automatic distributing instrument (38) by isochronous controller (39) by host computer (42).
2. induce flammable explosion hazard gases blast coupling test device, its feature according to the hot loose coal body described in claim 1
It is：The insulation plug is included at the top of first insulation plug (2-1) and closure transparent vessel (1) of closure transparent vessel (1) bottom
The second insulation plug (2-2), the fastener includes being arranged on the first insulation plug (2-1) bottom and fixing the first insulation plug (2-1)
The first pressing plate (3-1) and be arranged on the second pressing plate (3-2) that the second insulation plug (2-2) is fixed at the top of the second insulation plug (2-2),
And for fasten the first pressing plate (3-1) and the second pressing plate (3-2) screw rod (4), screw rod (4) fastening the first pressing plate (3-1) and
The both ends of second pressing plate (3-2) are mounted on nut (5), and basket (7) is suspended in the second insulation plug (2-2) by adiabatic silk (6)
Bottom.
3. induce flammable explosion hazard gases blast coupling test device, its feature according to the hot loose coal body described in claim 1
It is：The flame sensor (29) is connected by flame data collecting instrument (30) with host computer (42), temperature sensor (31)
Be connected by temperature polling instrument (32) with host computer (42), pressure sensor (33) by with pressure logging (34) and host computer
(42) connect.
4. induce flammable explosion hazard gases blast coupling test device, its feature according to the hot loose coal body described in claim 3
It is：The quantity of the temperature sensor (31) and pressure sensor (33) is multiple, and multiple temperature sensors (31) are along saturating
Bright container (1) length direction is linearly set in qually spaced on transparent vessel (1) lateral wall, and multiple pressure sensors (33) are along saturating
Bright container (1) length direction is linearly set in qually spaced on transparent vessel (1) lateral wall, and transparent vessel (1) is cylindric
Bright container, multiple temperature sensors (31) are symmetricly set on the axis two of transparent vessel (1) with multiple pressure sensors (33)
Side, the pressure gauge (16) for gathering transparent vessel (1) internal pressure value is provided with transparent vessel (1).
5. induce flammable explosion hazard gases blast coupling test device, its feature according to the hot loose coal body described in claim 1
It is：The quantity of the unisexuality combustion gas bottle (35) is multiple, and the unisexuality of storage can in multiple unisexuality combustion gas bottles (35)
Combustion gas body is different.
6. induce flammable explosion hazard gases blast coupling test device, its feature according to the hot loose coal body described in claim 1
It is：The gas analysis unit includes vacuum gas cylinder (26), four-way valve (24) and detection vacuum gas cylinder (26) composition of gases within
Gas chromatographicanalyzer (28), on the pipeline that vacuum gas cylinder (26) connects with transparent vessel (1), unisexuality combustion gas bottle (35)
Stream is provided with the pipeline connected with automatic distributing instrument (38), on the pipeline that air bottle (36) connects with automatic distributing instrument (38)
Gauge (22), the signal output part of flowmeter (22) connect with the input of host computer (42), automatic distributing instrument (38) with it is transparent
Non-return valve, use are provided with the pipeline of container (1) connection and on the pipeline that is connected with vacuum gas cylinder (26) of transparent vessel (1)
The magnetic valve of pass and triple valve for controlling air venting are opened up in control gas stream, the triple valve does not access the one of pipeline
End relief tube is installed, the first port of four-way valve (24) connects with vacuum gas cylinder (26), the second port of four-way valve (24) and
Connect the pipeline connection of vacuum gas cylinder (26) and transparent vessel (1), the 3rd port of four-way valve (24) and gas chromatographicanalyzer
(28) connect, the 4th port of four-way valve (24) connects with the aspiration pump (27) controlled by host computer (42), unisexuality fuel gas
Pressure-reducing valve, pressure tester (37), gas cylinder switch (25) and sealing ring (44) are mounted on bottle (35) and air bottle (36).
7. induce flammable explosion hazard gases blast coupling test device, its feature according to the hot loose coal body described in claim 1
It is：Described image dynamic collecting instrument is high-speed camera (41), and the high-speed camera (41) is arranged on adjustable for height three
In angle support (40).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108627404A (en) * | 2018-08-03 | 2018-10-09 | 南京工业大学 | Venting of dust explosion flame induces the test system and its test method of vaporous cloud explosion |
| CN109085271A (en) * | 2018-09-07 | 2018-12-25 | 中国工程物理研究院化工材料研究所 | A kind of small pit goaf thermal explosion gas collector and analysis method for gases |
| CN109975354A (en) * | 2019-04-11 | 2019-07-05 | 中国矿业大学(北京) | Visualize combustible explosion chemical looping reaction process test device and method |
| CN110243861A (en) * | 2019-02-19 | 2019-09-17 | 中煤科工集团淮北爆破技术研究院有限公司 | Toxic gas explosion case test device and its test method |
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2017
- 2017-06-09 CN CN201720672841.6U patent/CN206804567U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627404A (en) * | 2018-08-03 | 2018-10-09 | 南京工业大学 | Venting of dust explosion flame induces the test system and its test method of vaporous cloud explosion |
| CN108627404B (en) * | 2018-08-03 | 2023-08-22 | 南京工业大学 | System and method for testing explosion venting flame induced vapor cloud explosion |
| CN109085271A (en) * | 2018-09-07 | 2018-12-25 | 中国工程物理研究院化工材料研究所 | A kind of small pit goaf thermal explosion gas collector and analysis method for gases |
| CN109085271B (en) * | 2018-09-07 | 2021-06-22 | 中国工程物理研究院化工材料研究所 | Small-dose thermal explosion gas collecting device and gas analysis method |
| CN110243861A (en) * | 2019-02-19 | 2019-09-17 | 中煤科工集团淮北爆破技术研究院有限公司 | Toxic gas explosion case test device and its test method |
| CN110243861B (en) * | 2019-02-19 | 2022-02-25 | 中煤科工集团淮北爆破技术研究院有限公司 | Testing method of toxic gas explosion box testing device |
| CN109975354A (en) * | 2019-04-11 | 2019-07-05 | 中国矿业大学(北京) | Visualize combustible explosion chemical looping reaction process test device and method |
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Granted publication date: 20171226 Termination date: 20210609 |