CN107219258A - A kind of restricted clearance fires simulation and elongnated building, datonation-inhibition experiment porch and method - Google Patents
A kind of restricted clearance fires simulation and elongnated building, datonation-inhibition experiment porch and method Download PDFInfo
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- CN107219258A CN107219258A CN201710610569.3A CN201710610569A CN107219258A CN 107219258 A CN107219258 A CN 107219258A CN 201710610569 A CN201710610569 A CN 201710610569A CN 107219258 A CN107219258 A CN 107219258A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 95
- 238000004088 simulation Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004880 explosion Methods 0.000 claims abstract description 110
- 239000000428 dust Substances 0.000 claims abstract description 101
- 238000013022 venting Methods 0.000 claims abstract description 101
- 230000001629 suppression Effects 0.000 claims abstract description 47
- 238000009826 distribution Methods 0.000 claims abstract description 37
- 239000003112 inhibitor Substances 0.000 claims abstract description 24
- 238000010304 firing Methods 0.000 claims abstract description 5
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- 238000012360 testing method Methods 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 29
- 230000005764 inhibitory process Effects 0.000 claims description 26
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
Abstract
Simulation and elongnated building, datonation-inhibition experiment porch and method are fired the invention discloses a kind of restricted clearance.The platform includes Laboratory Module, ignition system, suppression system, air distribution system, data collecting system, control system and computer, Laboratory Module is three-dimensional shelter, top surface reserves inhibitor spout and provided with window venting of dust explosion mouthful, window venting of dust explosion mouthful is formed by the pressure release film frame of several various sizes of Back Word type boss structures by high-strength bolt nesting, when firing experiment, Laboratory Module side wall sets window venting of dust explosion mouthful；Flash over and strile-back experiment when, Laboratory Module side wall is set to gate-type venting of dust explosion face, and realizes by way of high-strength bolt is nested the adjustable of hatch door width.Using this platform and method, carry out various concentrations distributions, different venting of dust explosion conditions, different ignition locations, it is different it is datonation-inhibition under the conditions of real yardstick building restricted clearance in fire, datonation-inhibition experiment, the proposition of foundation and efficient datonation-inhibition technology for venting of dust explosion parametric prediction model in Building class restricted clearance provides related experiment parameter.
Description
Technical field
Simulation and elongnated building, suppression are fired the present invention relates to anti-explosion fire safe practice, more particularly to a kind of restricted clearance
Quick-fried experiment porch and method.Specifically provide a kind of restricted clearance combustion explosion of combustible gas, gas phase strile-back and solid, liquid mutually flash over simulation with
Elongnated building, datonation-inhibition experiment porch, are that a kind of multifunctional comprehensive experiment for belonging to burning, explosion test simulation with suppressing is put down
Table apparatus.
Background technology
Flammable gas explosion accident in restricted clearance is the industrial production such as petrochemical industry place and people's daily life
In common disaster accident type, fire Evolution and its explosion-proof, datonation-inhibition technology in relevant restricted clearance are current fire
The focus of calamity blast Prevention Technique area research.At present, to combustion explosion of combustible gas characteristic in restricted clearance, pressure wave, fire hair
The correlative study of exhibition rule and explosion suppression is concentrated mainly in the experimental provisions such as pipeline, explosive container and tunnel, and research
Object mostly be the single Prevention Technique that fires, still lack can simulate fired in real yardstick Building class restricted clearance and can simultaneously mould
Intend the comprehensive experiment device and method of a variety of blast Prevention Techniques.In addition, flashing over, returning for common in building restricted clearance
Combustion accident, current research mainly uses the experimental provision of small yardstick, and the restricted clearance for lacking real yardstick flashes over, strile-backs and simulate and press down
Experimental method processed and device, and at present still without can fire, flash over, strile-back and explode and let out in comprehensive simulation building restricted clearance
Pressure, datonation-inhibition experimental provision and method.
The content of the invention
In view of prior art situation, simulation and elongnated building, suppression are fired it is an object of the invention to provide a kind of restricted clearance
Quick-fried experiment porch and method.Different fuel gas samples is directed to, development can meet various concentrations gradient, different ignition locations
And ignition energy, and different venting of dust explosion parameters（Venting of dust explosion mouthful type, quantity, position etc.）Under the conditions of, building restricted clearance fires spy
Levy parameter testing, the observation of venting of dust explosion dynamic process and the synthesis that inerting and explosion suppression are carried out using inhibitor such as water smoke, gases
Property experiment porch and method.Meanwhile, the experiment porch can be realized under the conditions of different fuel type, different fuel distribution etc., be limited
The repeatability simulation and the kidney-yang training of fire-fighting for flashing over, strile-bacing and its suppressing in space.
The present invention is adopted the technical scheme that：A kind of restricted clearance fires simulation and elongnated building, datonation-inhibition experiment porch, its
It is characterised by, the experiment porch includes Laboratory Module, ignition system, suppression system, air distribution system, data collecting system, control
System and main control computer, ignition system, suppression system, air distribution system, data collecting system are connected in Laboratory Module nacelle,
Control system respectively with ignition system, suppression system, air distribution system, data collecting system wireless connection；Control system and master control
Computer is connected；The Laboratory Module is three-dimensional shelter, and multiple inhibitor spouts are reserved in Laboratory Module top surface；In the top surface of Laboratory Module
Provided with window venting of dust explosion mouthful, window venting of dust explosion mouthful passes through high-strength bolt by the pressure release film frame of several various sizes of Back Word type boss structures
Nesting is formed, and realizes the adjustable of venting of dust explosion mouthful size；When carrying out firing experiment, in Laboratory Module side, wall sets window venting of dust explosion
Mouthful, or by dismantling half of opening seal and the bolt on half of openable panel, half of full-open type venting of dust explosion mouthful is set；Banged
Combustion experiment and strile-back experiment when, Laboratory Module side wall is set to quickly-opened gate-type venting of dust explosion face, and gate-type venting of dust explosion face is by can be fast
The nacelle connection of fast opening hinge and Laboratory Module, and realize by way of high-strength bolt is nested the adjustable of hatch door width.
A kind of use restricted clearance of the present invention fires simulation and tested with elongnated building, datonation-inhibition experiment porch
Method, it is characterised in that this method includes：Restricted clearance fires simulation and elongnated building, datonation-inhibition experiment；Restricted clearance flashes over mould
Intend and Inhibition test；Restricted clearance, which strile-backs, simulates and Inhibition test.
First, restricted clearance fires simulation and elongnated building, datonation-inhibition experiment
When progress restricted clearance fires simulation with elongnated building, datonation-inhibition experiment, selection is needed to use side wall window according to experiment
Venting of dust explosion mouthful or half of full-open type venting of dust explosion mouthful, first separately or concurrently using top surface and side wall venting of dust explosion mouthful, the chi of regulation venting of dust explosion mouthful
It is very little, and different type venting of dust explosion material is installed on venting of dust explosion mouthful, on the premise of the requirement of Laboratory Module seal is ensured, while realizing not
Venting of dust explosion with Rupture of Membrane pressure is simulated；According to experiment demand, separately or concurrently using different classes of suppression system；According to experiment need
Ask, fuel gas and air are filled with by Laboratory Module from two gas sampling interfaces by matched proportion density volume ratio by air distribution system
It is interior, realize the uniform or non-uniform Distribution of mixed gas in Laboratory Module；Then igniting is opened by control system synchronization or delay
System and suppression system, observe and record relevant feature parameters；By separately or concurrently using window venting of dust explosion mouthful and suppression system
System, can be achieved venting of dust explosion, the individually or simultaneously simulation of datonation-inhibition experiment in restricted clearance.
2nd, restricted clearance flashes over simulation and Inhibition test
When progress restricted clearance flashes over simulation with Inhibition test, the company between air distribution system and ignition system and Laboratory Module is released
Connect, and corresponding connector is closed；Needed to install wall surface material fixing device, laying melting or non-melt wall according to experiment
Material, band grid floor is laid in bottom surface, is provided for measuring the thermocouple of melted material oil sump area on grid floor；
Standard comburant is set in bottom surface by the quantity being pre-designed, position and disposing way, to control comburant to wall surface material
Radiation ignite efficiency, realize and flash over simulation under different fire load densities, different radiation ignition conditions；Artificially light standard
Comburant, observes and records temperature development situation of change and melted material in cabin and melt the fiery area in the pond to be formed, and then propose
Ignition source thermal discharge and the quantitative relationship for flashing over the time, and set up melted material prediction of flashover model；Suppress real when flash over
When testing, different classes of suppression system is selected according to experiment demand, and startup suppresses system after generation is flashed over by control system
System, observes and records related experiment parameter.
3rd, restricted clearance, which strile-backs, simulates and Inhibition test
When progress restricted clearance strile-backs simulation with Inhibition test, in Laboratory Module bottom surface placing burning device, and pass through default combustion
Burner is connected by burner air supply opening with air distribution system；First turn on air distribution system and supply fuel to burner, drive burner
Begin burning oxygen consumption, is then turned off gate-type venting of dust explosion face；Magnetic valve is closed in setting time and stops gas supply, therewith using control system
Unite quick opening door type venting of dust explosion face, observation experiment phenomenon simultaneously records temperature, pressure parameter；For the Inhibition test that strile-backs, first basis
Demand selects suppression system（4）, after burner, which opens burning, gate-type venting of dust explosion face, closes, open inhibitor shower nozzle and sprayed into cabin
Inhibitor is put, and record spurts quality, and gas supply is stopped in setting time, is let out therewith using the quick opening door type of control system
Quick-fried face, test evaluation is strile-backd inhibition.
The invention has the advantages that：
1st, by setting the pressure release film frame of Back Word type boss structure on different venting of dust explosion faces, different venting of dust explosion mouthful sizes, quantity are realized
Under vented explosion tests simulation.
2nd, by setting multiple inhibitor spouts in Laboratory Module top surface, diverse location, varying number, difference after blast are realized
The individually or simultaneously effect of type inhibitor, can also realize the essential safety inerting before blast.
3rd, by using venting of dust explosion mouthful and suppression system, realizing a variety of experiments fired under Prevention Technique of restricted clearance simultaneously
Simulation.
4th, by the arrangement of the standard comburant of design, arrangement method, to control ignition source to draw wall surface material heat radiation
Fuel efficiency rate, realizes that the restricted clearance under different fire load densities, different radiation ignition conditions flashes over simulation.By being marked in bottom surface
Grid lines is noted, and the ordered series of numbers thermocouple for being mutually and determining angle is set, the accurate measurement of the fiery area in melting wall surface material formation pond is realized, is
The foundation of melted material prediction of flashover model provides basic data.
5th, using adjustable width, quickly-opened gate-type venting of dust explosion face, and it is aided with component analysis instrument, realizes different ventilations
Under the conditions of strile-back occur critical condition DATA REASONING.
Experiment porch of the present invention, which can be realized, to be fired, flashes over, strile-bacing simulation and elongnated building, suppressions etc. are tested, with comprehensive
The characteristics of conjunction property and multifunctionality.Using the experiment porch and method of the present invention, various concentrations distribution, different venting of dust explosion bars are carried out
Part, different ignition location, it is different it is datonation-inhibition under the conditions of real yardstick building restricted clearance in fire, datonation-inhibition experiment, be Building class
The foundation of venting of dust explosion parametric prediction model and the proposition of efficient datonation-inhibition technology provide related experiment parameter in restricted clearance.Meanwhile,
Slightly transformed with device by the way that experiment will be fired, the simulation and suppression for flashing over, strile-bacing in real yardstick restricted clearance can be carried out
Experiment, the proposition for flash over, strile-back in building restricted clearance forecast model and emergence treating method provides basic data.
Brief description of the drawings
Fig. 1 is Each part connection diagram of the present invention；
Fig. 2, for the present invention carry out restricted clearance fire simulation with elongnated building, datonation-inhibition experiment when, Laboratory Module external structure is shown
It is intended to；
Fig. 3 is of the invention when progress restricted clearance fires simulation with elongnated building, datonation-inhibition experiment, and Laboratory Module internal structure is arranged
Schematic diagram；
Fig. 4 is of the invention when progress restricted clearance flashes over simulation with Inhibition test, and Laboratory Module arranges schematic diagram；
Fig. 5 is of the invention when progress restricted clearance strile-backs simulation with Inhibition test, and Laboratory Module arranges schematic diagram；
Fig. 6 is pressure release film mount structure schematic diagram on Laboratory Module of the present invention；
Fig. 7 is Fig. 6 A-A side views；
Fig. 8 is operation principle of the present invention and experiment flow figure.
In figure：1- Laboratory Modules, 2- ignition systems, the scalable ignitors of 201-, 3- window venting of dust explosion mouthful, 301- pressure release moulds
Frame, 4- suppression systems, 401- high speed pneumatic valves, 402- inhibitor shower nozzles, 403- inhibitor spouts, 404- magnetic valves, 405- suppressions
Formulation reservoir, 406- pressure-reducing valves, 407- high pressure tanks, 5- air distribution systems, 501- gas samplings mouthful, 502- flowmeters, 503-
Magnetic valve, 504- flash-back arrestors, 505- gas mixing ratio blenders, 506- pressure-reducing valves, 507- pressure gauges, 508- fuel gas bottle groups,
509- burner air supply openings, 6- data collecting systems, 601- gas samplers, 602- pressure sensors, 603- temperature sensors,
604- concentration sensors, 605- thermocouple trees, 606- component analysis instrument, 7- control systems, 701- programmable controllers, 702- without
Line router, 8- main control computers, 9- high-strength bolts, 10- one side of something opening seals, 11- one side of something openable panels, 12- reinforcements,
13- gate-type ventings of dust explosion face, 14- can quick opening hinge, 15- wall surface materials, 16- band grid floors, 17- standard comburants, 18- heat
Galvanic couple, 19- burners.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Reference picture 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, restricted clearance fires simulation to be included with elongnated building, datonation-inhibition experiment porch
Laboratory Module 1, ignition system 2, suppression system 4, air distribution system 5, data collecting system 6, control system 7 and main control computer 8,
Ignition system 2, suppression system 4, air distribution system 5, data collecting system 6 are connected in the nacelle of Laboratory Module 1, and control system 7 is distinguished
With ignition system 2, suppression system 4, air distribution system 5, the wireless connection of data collecting system 6；Control system 7 and main control computer 8
Connection；Laboratory Module 1 is three-dimensional shelter, and multiple inhibitor spouts 403 are reserved in the top surface of Laboratory Module 1；It is provided with the top surface of Laboratory Module 1
Window venting of dust explosion mouthful 3, window venting of dust explosion mouthful 3 passes through high-strength spiral shell by the pressure release film frame 301 of several various sizes of Back Word type boss structures
The nesting of bolt 9 is formed, and by the way that the high-strength bolt 9 on pressure release film frame 301 is pulled down, and it is different to realize to remove pressure release film frame 301
Venting of dust explosion mouthful size；When progress fires experiment, window venting of dust explosion mouthful 3 is set in the side wall of Laboratory Module 1, or when experiment needs are bigger
, can be by the Bolt dismantling on half of opening seal 10 and half of openable panel 11 during venting of dust explosion mouthful size, and open half of opening face
Plate 11, sets half of full-open type venting of dust explosion mouthful；When progress flashes over and tests and strile-back experiment, the side wall of Laboratory Module 1 is set to can be quick
The gate-type venting of dust explosion face 13 of unlatching, gate-type venting of dust explosion face 13 is passed through by that quickly opening hinge 14 can be connected with the nacelle of Laboratory Module 1
The nested mode of high-strength bolt 9 realizes the adjustable of hatch door width.
Laboratory Module 1 is made using stainless steel plate, reinforcement 12 is provided with each nacelle face, to ensure security.
Restricted clearance fire simulation with elongnated building, datonation-inhibition experiment porch suppression system 4 include high speed pneumatic valve 401,
Inhibitor shower nozzle 402, magnetic valve 404, inhibitor storage tank 405, pressure-reducing valve 406 and high pressure tank 407, are connected to pipeline in turn
On, pipeline is each provided at outside nacelle, and inhibitor shower nozzle 402 is embedded in nacelle by the inhibitor spout 403 of the top surface of Laboratory Module 1, such as
Shown in Fig. 1.It is real by setting varying number, different types of inhibitor shower nozzle 402 in the inhibitor spout 403 of diverse location
The passive suppression and active safety inerting now fired to restricted clearance.
Restricted clearance, which fires simulation and the air distribution system 5 of elongnated building, datonation-inhibition experiment porch, includes fuel gas bottle group 508, pressure
Power table 507, pressure-reducing valve 506, gas mixing ratio blender 505, flash-back arrestor 504, magnetic valve 503, flowmeter 502, connect successively
It is connected on pipeline, and point two-way is connected with the gas sampling mouthful 501 positioned at the side wall upper and lower part of Laboratory Module 1 respectively, such as Fig. 1
It is shown.Air distribution system 5 can realize the accurate configuration of uniform in Laboratory Module 1 or non-homogeneous concentration.
Restricted clearance, which fires simulation and the data collecting system 6 of elongnated building, datonation-inhibition experiment porch, includes gas sampler
601st, component analysis instrument 606, pressure sensor 602, temperature sensor 603, concentration sensor 604 and for flashing over and strile-bacing
The thermocouple tree 605 of experimental temperature measurement；Wherein gas sampler 601, pressure sensor 602, temperature sensor 603, concentration
Sensor 604 and the nacelle that Laboratory Module 1 is separately mounted to for the thermocouple tree 605 that the experimental temperature that flashes over and strile-back is measured
It is interior.Oxygen concentration sensor 604 is installed along short transverse, the detection of non-homogeneous concentration gradient is realized by demarcation and calculating.It is above-mentioned
The harvester of data collecting system can be arranged on the diverse location in Laboratory Module by the opening in nacelle, to realize different positions
Put the measurement of the parameters such as place's pressure, temperature and gas concentration.
Restricted clearance fires simulation and the ignition system 2 of elongnated building, datonation-inhibition experiment porch uses scalable ignitor
201, scalable ignitor 201 is arranged on by default mounting hole in the nacelle of Laboratory Module 1, and the electricity of diverse location can be achieved
Igniting and chemic ignition.
Restricted clearance fires simulation and the control system 7 of elongnated building, datonation-inhibition experiment porch uses programmable controller 701
And wireless router 702, the wireless controlled to ignition system, air distribution system and suppression system is realized by programmable controller 701
System, and wireless and wired two kinds of data transfer modes between main control computer 8 are used, realize the man-machine of nacelle and control system
Separation, while ensureing the safe and reliable of data transfer.
The present invention fires the method tested with elongnated building, datonation-inhibition experiment porch of simulation using restricted clearance to be included：
Restricted clearance fires simulation and elongnated building, datonation-inhibition experiment；Restricted clearance flashes over simulation and Inhibition test；Restricted clearance strile-backs mould
Intend and Inhibition test.
First, restricted clearance fires simulation and elongnated building, datonation-inhibition experiment
Reference picture 1, Fig. 2 and Fig. 3, separately or concurrently using the window venting of dust explosion mouthful 3 and the window venting of dust explosion of side wall of the top surface of Laboratory Module 1
Mouth 3 or half of full-open type ventings of dust explosion mouthful, by adjusting the size of window venting of dust explosion mouthful 3, realize the venting of dust explosion Parameter Conditions of requirement of experiment；It is first
Different type venting of dust explosion material is first installed on venting of dust explosion mouthful, on the premise of the requirement of Laboratory Module seal is ensured, while realizing different
The venting of dust explosion simulation of Rupture of Membrane pressure；Gas sampler 601, pressure sensor 602, temperature sensor 603,604 points of concentration sensor
An Zhuan not be in the nacelle of Laboratory Module 1, the scalable ignitor 201 of ignition system is arranged on experiment by default mounting hole
In the nacelle of cabin 1, according to experiment demand, fuel gas and air are pressed from two gas by matched proportion density volume ratio by air distribution system 5
It is filled with body sample introduction interface 501 in Laboratory Module, realizes the uniform or non-uniform Distribution of mixed gas in Laboratory Module；Then control is passed through
System synchronization processed or delay open ignition system 2 fire carrying out restricted clearance combustible gas, vented explosion tests；When progress restricted clearance
During datonation-inhibition experiment, according to experiment demand, separately or concurrently using different classes of suppression system 4（Water smoke, gas and dry powder）；Match somebody with somebody
After the completion of gas system distribution, using control system simultaneously or delay start ignition system 2 and suppression system 4, adopted by data
Collecting system 6 records relevant feature parameters；When needing to carry out venting of dust explosion and the datonation-inhibition experiment in restricted clearance simultaneously, first by above-mentioned
Method completes venting of dust explosion mouthful 3 and set, and selects corresponding suppression system 4（Water smoke, gas and dry powder）；Air distribution system distribution is completed
Afterwards, observe in the time starting ignition system 2 and suppression system 4 of setting using control system and record relevant feature parameters.
2nd, restricted clearance flashes over simulation and Inhibition test
Reference picture 1 and Fig. 4, the window venting of dust explosion mouthful 3 of the top surface of Laboratory Module 1 is closed；Side wall, which is replaced, installs quickly-opened gate-type
Venting of dust explosion face 13, will be arranged in Laboratory Module for the thermocouple tree 605 of temperature survey, be needed to pacify in Laboratory Module inwall according to experiment
Wall surface material fixing device, laying melting or non-melt wall surface material 15 are installed, band grid floor 16 is laid in bottom surface, in band net
It is provided for measuring the thermocouple 18 of melted material oil sump area on lattice bottom plate 16；By the quantity being pre-designed, position and pendulum
Put mode and standard comburant 17 is set in bottom surface, to control radiation of the comburant to wall surface material to ignite efficiency, realize different fire
Simulation is flashed under calamity density of load, different radiation ignition conditions；Standard comburant 17 artificially is lighted, observes and records warm in cabin
Degree development and change situation and melted material melt the fiery area in the pond to be formed, and then propose ignition source thermal discharge and flash over the time
Quantitative relationship, and set up melted material prediction of flashover model；It is different according to experiment demand selection when carrying out flashing over Inhibition test
The suppression system 4 of classification, and suppression system 4 is started after generation is flashed over by control system 7, observe and record related experiment ginseng
Number.
3rd, restricted clearance, which strile-backs, simulates and Inhibition test
Reference picture 1 and Fig. 5, the window venting of dust explosion mouthful 3 of the top surface of Laboratory Module 1 is closed；Side wall, which is replaced, installs quickly-opened gate-type
In venting of dust explosion face 13, the nacelle that the scalable ignitor 201 of ignition system is arranged on to Laboratory Module 1 by default mounting hole,
It is separately mounted to by pressure sensor 602 and for the thermocouple tree 605 of temperature survey in Laboratory Module, the placing burning on bottom surface
Device 19, and be connected burner 19 with air distribution system 5 by default burner air supply opening 509；First turn on air distribution system 5 to
Burner 19 supplies fuel, burner 19 is started the oxygen consumption that burns, is then turned off gate-type venting of dust explosion face 13；Electricity is closed in setting time
Magnet valve 503 stops gas supply, and therewith using the quick opening door type venting of dust explosion face 13 of control system, observation experiment phenomenon simultaneously records temperature
Degree, pressure parameter；For the Inhibition test that strile-backs, suppression system 4 is first selected according to demand, when burner 19 opens burning, gate-type
After venting of dust explosion face 13 is closed, open inhibitor shower nozzle 402 and inhibitor is spurted into cabin, and record spurts quality, stops in setting time
Only gas supply, therewith using the quick opening door type venting of dust explosion face 13 of control system 7, test evaluation is strile-backd inhibition.
The Laboratory Module of this experiment porch is three-dimensional shelter, coordinates reinforcement, frame structure to make using steel plate, so that experiment
Cabin has the compressive resistance for being not less than 2Mpa.In addition, heat-barrier material need to be set up in Laboratory Module when being flashed over, strile-bacing experiment
（Alumina silicate pierces blanket cotton）, so that nacelle has enough thermal insulations.The top surface and side wall of Laboratory Module can open up different types of open
Mouthful, to devices such as install sensor, igniter and suppression system shower nozzles.The top surface and side wall for testing nacelle set window
Venting of dust explosion mouthful（Top venting of dust explosion mouthful is located at plate center, and side wall venting of dust explosion mouthful is located at center upper position）, window venting of dust explosion mouthful is by layer by layer
The pressure release film frame composition of nested Back Word type boss structure, by being pulled down the high-strength bolt on pressure release film frame and removing pressure release film
Frame realizes different venting of dust explosion mouthful size.In addition, the half of openable panel of side wall window venting of dust explosion mouthful bottom can also be torn open by bolt
Unload, be set to half of full-open type venting of dust explosion mouthful.By choose different sizes, different type, diverse location venting of dust explosion mouthful, with realize by
Limit the venting of dust explosion simulation under the different venting of dust explosion parameters in space.Different type venting of dust explosion material can be installed on venting of dust explosion mouthful, ensureing that Laboratory Module is close
On the premise of the requirement of closing property, while realizing the venting of dust explosion simulation of different Rupture of Membrane pressure.In addition, side wall detachably replaces with gate-type venting of dust explosion
Face, gate-type venting of dust explosion face is connected by hinge with Laboratory Module nacelle, and the fast of gate-type venting of dust explosion face can be realized by automatic control mode
Speed is opened, and fresh air is rapidly entered when strile-bacing experiment to realize, hatch door is realized in gate-type venting of dust explosion face by way of bolt is nested
Width it is adjustable.The hole that water smoke, gas and dry powder suppression system nozzle are installed is reserved in Laboratory Module top surface.Can be according to reality
Test and require that different suppression systems are installed, to realize using separately or together for three kinds of fire extinguishing restraining devices.
In Laboratory Module side, the upper and lower part of wall is respectively mounted gas sampling interface, is existed by using accurate air distribution system
Ratio distribution on request in cabin, to realize the uniform mixing of gas or the non-uniform Distribution along short transverse in nacelle.In experiment
Cabin diverse location sets sensor mounting flange, available for the detection means for installing blast pressure, flame propagation and temperature.
Scalable ignitor is installed in Laboratory Module, chemic ignition and the pulse firing of diverse location can be achieved.
When flashing over experiment, pass through the standard comburant of design（GB/T31431-2015《Fire extinguishing system A classes fire experiment mark
Quasi- comburant》）Arrangement, arrangement method, to control radiation of the comburant to wall surface material to ignite efficiency, realize different fire lotuses
Carry and flash over simulation under density, different radiation ignition conditions；Melting wall surface material melts the oil sump area of formation after being ignited, can
The grid lines marked in advance by bottom surface and the ordered series of numbers thermocouple measurement of laying, the parameter can draw as HRR new-added item
Enter equation of heat balance, and then set up the forecast model that melted material in restricted clearance is flashed over.Strile-back experiment when, in Laboratory Module bottom surface
Burner is set, and is connected by corresponding burner air supply opening with outside air distribution system, to realize the guide for experiment of strile-bacing
Burning condition.Burner is exhausted in cabin after oxygen, by controlling the quick unlatching in gate-type venting of dust explosion face to be strile-backd to realize.
Reference picture 1, Laboratory Module, gas handling system, suppression system, ignition system etc., can by wireless control system centralized Control
The major function of realization includes：On request accurate distribution, synchronization and late ignition, synchronization and delay suppression system spurt, gate-type
Venting of dust explosion face is quickly opened, multipath synchronous data collection.Control system can be achieved using wireless and wired two kinds of data transfer modes
The separate men from machines of Laboratory Module and control system, while ensureing the safe and reliable of data transfer.
Claims (8)
1. a kind of restricted clearance fires simulation and elongnated building, datonation-inhibition experiment porch, it is characterised in that the experiment porch includes
Laboratory Module（1）, ignition system（2）, suppression system（4）, air distribution system（5）, data collecting system（6）, control system（7）And
Main control computer（8）, ignition system（2）, suppression system（4）, air distribution system（5）, data collecting system（6）It is connected to Laboratory Module
（1）In nacelle, control system（7）Respectively with ignition system（2）, suppression system（4）, air distribution system（5）, data collecting system
（6）Wireless connection；Control system（7）With main control computer（8）Connection；The Laboratory Module（1）For three-dimensional shelter, in Laboratory Module
（1）Top surface reserves multiple inhibitor spouts（403）；In Laboratory Module（1）Top surface provided with window venting of dust explosion mouthful（3）, window venting of dust explosion mouthful
（3）By the pressure release film frame of several various sizes of Back Word type boss structures（301）Pass through high-strength bolt（9）Nesting is formed, and is realized
Venting of dust explosion mouthful size it is adjustable；When carrying out firing experiment, in Laboratory Module（1）Side wall sets window venting of dust explosion mouthful（3）, or pass through
The half of opening seal of dismounting（10）With half of openable panel（11）On bolt, half of full-open type venting of dust explosion mouthful is set；Banged
When experiment is tested and strile-backd in combustion, Laboratory Module（1）Side wall is set to quickly-opened gate-type venting of dust explosion face（13）, gate-type venting of dust explosion face
（13）By can quick opening hinge（14）With Laboratory Module（1）Nacelle connection, and pass through high-strength bolt（9）Nested mode is real
Now hatch door width is adjustable.
2. a kind of restricted clearance according to claim 1 fires simulation and elongnated building, datonation-inhibition experiment porch, its feature exists
In Laboratory Module（1）Made using stainless steel plate, reinforcement is provided with each nacelle face（12）, to ensure security.
3. a kind of restricted clearance according to claim 1 fires simulation and elongnated building, datonation-inhibition experiment porch, its feature exists
In described suppression system（4）Including high speed pneumatic valve（401）, inhibitor shower nozzle（402）, magnetic valve（404）, inhibitor storage
Tank（405）, pressure-reducing valve（406）And high pressure tank（407）, it is connected in turn on pipeline, pipeline is each provided at outside nacelle, suppresses
Agent shower nozzle（402）Pass through Laboratory Module（1）The inhibitor spout of top surface（403）Embedded nacelle.
4. a kind of restricted clearance according to claim 1 fires simulation and elongnated building, datonation-inhibition experiment porch, its feature exists
In described air distribution system（5）Including fuel gas bottle group（508）, pressure gauge（507）, pressure-reducing valve（506）, gas mixing ratio blender
（505）, flash-back arrestor（504）, magnetic valve（503）, flowmeter（502）, be connected in turn on pipeline, and point two-way respectively with
Positioned at Laboratory Module（1）The gas sampling mouthful of side wall upper and lower part（501）Connection.
5. a kind of restricted clearance according to claim 1 fires simulation and elongnated building, datonation-inhibition experiment porch, its feature exists
In described data collecting system（6）Including gas sampler（601）, component analysis instrument（606）, pressure sensor（602）、
Temperature sensor（603）, concentration sensor（604）And the thermocouple tree for the experimental temperature measurement that flashes over and strile-back（605）；
Wherein gas sampler（601）, pressure sensor（602）, temperature sensor（603）, concentration sensor（604）And for banging
The thermocouple tree of experimental temperature of firing and strile-back measurement（605）It is separately mounted to Laboratory Module（1）Nacelle in.
6. a kind of restricted clearance according to claim 1 fires simulation and elongnated building, datonation-inhibition experiment porch, its feature exists
In described ignition system（2）Using scalable ignitor（201）, scalable ignitor（201）Installed by default
Hole is arranged on Laboratory Module（1）Nacelle in.
7. a kind of restricted clearance according to claim 1 fires simulation and elongnated building, datonation-inhibition experiment porch, its feature exists
In described control system（7）Using programmable controller（701）And wireless router（702）, pass through programmable controller
（701）Realize the controlled in wireless to ignition system, air distribution system and suppression system.
8. one kind using as claim 1, claim 2, claim 3, claim 4, claim 5, claim 6 or
Restricted clearance described in claim 7 fires the method that simulation is tested with elongnated building, datonation-inhibition experiment porch, and its feature exists
In this method includes：Restricted clearance fires simulation and elongnated building, datonation-inhibition experiment；Restricted clearance flashes over simulation and Inhibition test；
Restricted clearance, which strile-backs, simulates and Inhibition test；
First, restricted clearance fires simulation and elongnated building, datonation-inhibition experiment
When progress restricted clearance fires simulation with elongnated building, datonation-inhibition experiment, selection is needed to use side wall window according to experiment
Venting of dust explosion mouthful（3）Or half of full-open type venting of dust explosion mouthful, first separately or concurrently using top surface and side wall venting of dust explosion mouthful, regulation venting of dust explosion mouthful
Size, and different type venting of dust explosion material is installed on venting of dust explosion mouthful, on the premise of the requirement of Laboratory Module seal is ensured, realize simultaneously
The venting of dust explosion simulation of different Rupture of Membrane pressure；According to experiment demand, separately or concurrently using different classes of suppression system（4）；According to
Experiment demand, passes through air distribution system（5）Fuel gas and air are pressed into matched proportion density volume ratio from two gas sampling interfaces
（501）Place is filled with Laboratory Module, realizes the uniform or non-uniform Distribution of mixed gas in Laboratory Module；Then it is same by control system
Ignition system is opened in step or delay（2）And suppression system（4）, observe and record relevant feature parameters；By separately or concurrently
Use window venting of dust explosion mouthful（3）And suppression system（4）, venting of dust explosion, the individually or simultaneously simulation of datonation-inhibition experiment in restricted clearance can be achieved；
2nd, restricted clearance flashes over simulation and Inhibition test
When progress restricted clearance flashes over simulation with Inhibition test, air distribution system is released（5）And ignition system（2）With Laboratory Module it
Between connection, and corresponding connector is closed；Needed to install wall surface material fixing device, laying melting or non-molten according to experiment
Melt wall surface material（15）, band grid floor is laid in bottom surface（16）, in band grid floor（16）On be provided for measurement melting material
Expect the thermocouple of oil sump area（18）；Standard comburant is set in bottom surface by the quantity being pre-designed, position and disposing way
（17）, to control radiation of the comburant to wall surface material to ignite efficiency, realize that different fire load densities, different radiation ignite bar
Simulation is flashed under part；Artificially light standard comburant（17）, observe and record temperature development situation of change and melting in cabin
The fiery area in pond of melt material formation, and then propose ignition source thermal discharge and flash over the quantitative relationship of time, and set up melting material
Expect prediction of flashover model；When carrying out flashing over Inhibition test, different classes of suppression system is selected according to experiment demand（4）, and
Pass through control system（7）Start suppression system after generation is flashed over（4）, observe and record related experiment parameter；
3rd, restricted clearance, which strile-backs, simulates and Inhibition test
When progress restricted clearance strile-backs simulation with Inhibition test, in Laboratory Module（1）Bottom surface placing burning device（19）, and by pre-
If burner air supply opening（509）By burner（19）With air distribution system（5）Connection；First turn on air distribution system（5）To burning
Device（19）Fuel is supplied, makes burner（19）Start the oxygen consumption that burns, be then turned off gate-type venting of dust explosion face（13）；Closed in setting time
Magnetic valve（503）Stop gas supply, therewith using the quick opening door type venting of dust explosion face of control system（13）, observation experiment phenomenon is simultaneously
Record temperature, pressure parameter；For the Inhibition test that strile-backs, suppression system is first selected according to demand（4）, work as burner（19）Open
Burning, gate-type venting of dust explosion face（13）After closing, inhibitor shower nozzle is opened（402）Inhibitor is spurted into cabin, and record spurts quality,
Stop gas supply in setting time, therewith using control system（7）Quick opening door type venting of dust explosion face（13）, test evaluation strile-backs
Inhibition.
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