CN106194236A - A kind of dead face fire test device and method - Google Patents
A kind of dead face fire test device and method Download PDFInfo
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- CN106194236A CN106194236A CN201610803694.1A CN201610803694A CN106194236A CN 106194236 A CN106194236 A CN 106194236A CN 201610803694 A CN201610803694 A CN 201610803694A CN 106194236 A CN106194236 A CN 106194236A
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 27
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 47
- 239000003546 flue gas Substances 0.000 claims description 47
- 238000010998 test method Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000002341 toxic gas Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000004868 gas analysis Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000004088 simulation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 4
- 230000027648 face development Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/02—Test models
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
The present invention relates to fire test technical field, particularly relate to a kind of dead face fire test device and method.This dead face fire test device includes dead face and is arranged on the air duct in described dead face, is provided with frequency conversion fan in described air duct；Wherein said air duct is arranged on the inwall of described dead face, and the bearing of trend of described air duct and described dead face be arranged in parallel.The dead face fire test device and method that the present invention provides, the fire smoke being obtained in that in dead face spreads rule, set up ventilation smoke exhaust model optimum under dead face fire condition, for the ventilation smoke exhaust pattern that the possible fire hazard offer met with of dead face of the occasions such as subway work is optimal.
Description
Technical field
The present invention relates to fire test technical field, particularly relate to a kind of dead face fire test device and method.
Background technology
Exploiting at underground ore, subway engineering construction and part distinguishingly descend structure end to be easily formed dead face,
During dead face excavation operation, the means such as explosion, shield can make to be detained near work surface substantial amounts of dust and poisonous
Harmful gas, and dead face can not be formed and run through distinguished and admirable, therefore needs to be aerated by air duct in tunneling process, to get rid of
Or dilute flue dust and toxic and harmful.
The ventilating problem of dead face is one of reason that govern mine development, only solves dead face driving logical
Wind problem, safe efficient, the sustainable development in guarantee mine, only head tunneling ventilation is carried out by domestic and international many scholars
Study widely.
But, existing dead face Design of ventilation only accounts for the dust removal by ventilation needs during normal operation, not
Consider the ventilation smoke exhaust effect under the extreme cases such as fire.In operation process, owing to mechanical work, article are piled up, poisonous had
Evil gas and dust accumulation all easily breaking out of fire accident, during fire incident, fire smoke is the most notable to personnel's injury, because of
The optimal ventilation purging mode research of this reply dead face fire is just particularly important.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to provide a kind of dead face fire test device and method, solve existing dead face and lead to
Wind does not considers the ventilation smoke exhaust situation under the extreme cases such as fire, it is impossible to provide the dead face optimal ventilation when meeting with fire
The problem of purging mode.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of dead face fire test device, including Du Touxiang
Road and be arranged on the air duct in described dead face, is provided with frequency conversion fan in described air duct；Wherein said air duct is arranged on institute
State on the inwall of dead face, and the bearing of trend of described air duct and described dead face be arranged in parallel.
Further, being provided with an air duct in described dead face, described air duct is pull-out type air duct, described pull-out type wind
The distinguished and admirable entrance of cylinder is arranged on inside described dead face, and the distinguished and admirable outlet of described pull-out type air duct is arranged on described dead face
Outside.
Further, being provided with an air duct in described dead face, described air duct is forced air duct, described forced wind
The distinguished and admirable outlet of cylinder is arranged on inside described dead face, and the distinguished and admirable entrance of described pull-out type air duct is arranged on described dead face
Outside.
Further, described dead face is provided with two air ducts, two described air ducts be respectively pull-out type air duct and
Forced air duct, the distinguished and admirable entrance of wherein said pull-out type air duct is arranged on inside described dead face, described pull-out type air duct
Distinguished and admirable outlet be arranged on outside described dead face；The distinguished and admirable outlet of described forced air duct is arranged in described dead face
Portion, the distinguished and admirable entrance of described pull-out type air duct is arranged on outside described dead face.
Specifically, described dead face is cylindrical concrete duct, and the internal diameter of described dead face is 1.2m；Described air duct
Using extension type iron sheet air duct, described air duct internal diameter is 0.12m, and described air duct is arranged on distance ground 0.75m and highly locates.
Present invention also offers a kind of dead face fire test method, specifically include following steps:
In dead face, arrange a pull-out type air duct, simulate exhaust ventilation pattern；Or arrange in dead face
One forced air duct, simulates forced ventilation pattern；Or in dead face, arrange a pull-out type air duct and a press-in
Formula air duct, Analogue Hybrid air vent mode；
Burning things which may cause a fire disaster is positioned in dead face, simulates dead face firing condition；
Measured the flue gas characteristic data obtained in dead face by flue gas analyzer, described flue gas characteristic data include cigarette
Granule density, combustable gas concentration, concentration of toxic gases and oxygen concentration；
The visibility data obtained in dead face are measured by visibility meter；
Measured the temperature field data obtained in dead face by thermocouple bundle, and draw according to the temperature field data obtained
Thermo parameters method cloud atlas；
Measured the wind speed control data obtained in dead face by anemobiagraph, and paint according to the wind speed control data obtained
Wind speed control cloud charts processed.
Further, included by the step of the flue gas characteristic data in flue gas analyzer measurement acquisition dead face:
Dead face is positioned in the top inner wall directly over burning things which may cause a fire disaster and first flue gas analyzer is set；
Arranging multiple second flue gas analyzer in the top inner wall of dead face, the second described flue gas analyzer is along solely
The bearing of trend in head tunnel is evenly arranged；
Multiple 3rd flue gas analyzer, the 3rd described flue gas are set at dead face middle-range overhead 0.36m height
Analyser is evenly arranged along the bearing of trend of dead face.
Further, included by the step of the visibility data in visibility meter measurement acquisition dead face:
Arranging multiple visibility meter at dead face middle-range overhead 0.36m height, described visibility meter is along only head
The bearing of trend in tunnel is evenly arranged.
Further, included by the step of the temperature field data in thermocouple bundle measurement acquisition dead face:
In dead face, set gradually some row thermocouple bundles from inside to outside, each column thermocouple bundle from dead face
Top is arranged in order to bottom, and the bearing of trend of each column thermocouple Shu Junyu dead face is arranged vertically.
Further, included by the step of the wind speed control data in anemobiagraph measurement acquisition dead face:
Arranging multiple measuring wind speed cross section in dead face, each measuring wind speed cross section is equal along the bearing of trend of dead face
Even distribution, is respectively provided with multiple anemobiagraph on each measuring wind speed cross section.
(3) beneficial effect
The technique scheme of the present invention has the advantage that
Dead face fire test device and method of the present invention, it is possible to arrange a pull-out type in dead face
Air duct, simulates exhaust ventilation pattern；A forced air duct can be arranged in dead face, simulate forced ventilation mould
Formula；A pull-out type air duct and a forced air duct, Analogue Hybrid air vent mode can be arranged in dead face；Pass through
The foundation of these three air vent mode and test operation, it is possible to the fire smoke obtained in dead face spreads rule, it is established that solely
Ventilation smoke exhaust model optimum in the case of head roadway fire, for the possible fire danger met with of dead face of the occasions such as subway work
Danger provides optimal ventilation smoke exhaust pattern.
Accompanying drawing explanation
Fig. 1 is the structural representation of dead face fire test device in the embodiment of the present invention one；
Fig. 2 is the structural representation of dead face fire test device in the embodiment of the present invention two；
Fig. 3 is the structural representation of dead face fire test device in the embodiment of the present invention three；
Fig. 4 is the transverse sectional view of dead face fire test device in the embodiment of the present invention three；
Fig. 5 be the embodiment of the present invention dead face in the distribution schematic diagram of flue gas analyzer；
Fig. 6 be the embodiment of the present invention dead face in the distribution schematic diagram of visibility meter；
Fig. 7 be the embodiment of the present invention dead face in the distribution schematic diagram of thermocouple bundle；
Fig. 8 be the embodiment of the present invention dead face in the distribution schematic diagram of anemobiagraph；
Fig. 9 be the embodiment of the present invention dead face in the lateral cross section distribution schematic diagram of anemobiagraph.
In figure: 1: dead face；2: pull-out type air duct；3: forced air duct；4: burning things which may cause a fire disaster；5: dead face development end；
601: the first flue gas analyzers；602: the second flue gas analyzers；603: the three flue gas analyzers；701: visibility meter；801: heat
Couple bundle；901: anemobiagraph；10: measuring wind speed cross section.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
Embodiment one
As it is shown in figure 1, the embodiment of the present invention provides a kind of dead face fire test device, including dead face 1 and
It is arranged on the air duct in described dead face 1, described air duct is provided with frequency conversion fan.Described air duct is arranged on described dead face
On the inwall of 1, and the bearing of trend of described air duct and described dead face 1 be arranged in parallel.Described dead face 1 is additionally provided with
Burning things which may cause a fire disaster 4, described burning things which may cause a fire disaster 4 is arranged on the ground in dead face 1.
In the present embodiment, being provided with an air duct in described dead face 1, described air duct is pull-out type air duct 2, described in take out
The distinguished and admirable entrance 201 going out formula air duct 2 is arranged on described dead face 1 inside, and the distinguished and admirable outlet 202 of described pull-out type air duct 2 sets
Put outside described dead face 1, thus constitute the exhaust ventilation pattern in dead face.
Embodiment two
As in figure 2 it is shown, the embodiment of the present invention provides a kind of dead face fire test device, including dead face 1 and
It is arranged on the air duct in described dead face 1, described air duct is provided with frequency conversion fan.Wherein said air duct is arranged on described only head
On the inwall in tunnel 1, and the bearing of trend of described air duct and described dead face 1 be arranged in parallel.In described dead face 1 also
Being provided with burning things which may cause a fire disaster (not shown), described burning things which may cause a fire disaster is arranged on the ground in dead face 1.
In the present embodiment, being provided with an air duct in described dead face 1, described air duct is forced air duct 3, described pressure
The distinguished and admirable outlet 301 entering formula air duct 3 is arranged on inside described dead face, and the distinguished and admirable entrance 302 of described pull-out type air duct 3 is arranged
Outside described dead face, thus constitute the forced ventilation pattern in dead face.
Embodiment three
As shown in Figure 3-4, the embodiment of the present invention provides a kind of dead face fire test device, including dead face 1 with
And it is arranged on the air duct in described dead face 1, described air duct is provided with frequency conversion fan.Wherein said air duct be arranged on described solely
On the inwall in head tunnel 1, and the bearing of trend of described air duct and described dead face 1 be arranged in parallel.In described dead face 1
Being additionally provided with burning things which may cause a fire disaster (not shown), described burning things which may cause a fire disaster is arranged on the ground in dead face 1.
In the present embodiment, being provided with two air ducts in described dead face 1, two described air ducts are respectively pull-out type wind
Cylinder 2 and forced air duct 3, it is internal that the distinguished and admirable entrance 201 of wherein said pull-out type air duct 2 is arranged on described dead face 1, described
It is outside that the distinguished and admirable outlet 202 of pull-out type air duct 2 is arranged on described dead face 1.The distinguished and admirable outlet 301 of described forced air duct 3
Being arranged on described dead face 1 internal, it is outside that the distinguished and admirable entrance 302 of described pull-out type air duct 3 is arranged on described dead face 1,
Thus constitute the compound ventilation pattern in dead face.
In above-described embodiment one to embodiment three, each fire test device is pressed 1:5 reduced scale cun and is arranged, described dead face
1 uses cylindrical concrete duct, and the internal diameter of concrete duct is 1.2m, and wall thickness is 12cm, and the length of concrete duct is according to reality
Test and need scalable.Described air duct uses extension type iron sheet air duct, and described air duct internal diameter is 0.12m, and described air duct is arranged on
Distance ground 0.75m highly locates.
Embodiment four
The embodiment of the present invention provides a kind of dead face fire test method, uses the assay device as described in embodiment one
Test, specifically include following steps:
Arranging a pull-out type air duct in dead face, simulate exhaust ventilation pattern, wherein pull-out type air duct can root
Independent VFC is realized according to test requirements document；
Burning things which may cause a fire disaster is positioned in dead face, simulates dead face firing condition；
Measured the flue gas characteristic data obtained in dead face by flue gas analyzer, described flue gas characteristic data include cigarette
Granule density, combustable gas concentration, concentration of toxic gases and oxygen concentration；
The visibility data obtained in dead face are measured by visibility meter；
Measured the temperature field data obtained in dead face by thermocouple bundle, and draw according to the temperature field data obtained
Thermo parameters method cloud atlas；
Measured the wind speed control data obtained in dead face by anemobiagraph, and paint according to the wind speed control data obtained
Wind speed control cloud charts processed.
Wherein, as it is shown in figure 1, the distance of the distinguished and admirable entrance 201 of pull-out type air duct 2 and dead face development end 5 is set as
D1, d1 takes five kinds of operating modes of 1m, 1.5m, 2m, 2.5m, 3m respectively in an experiment, and obtains the flue gas characteristic under every kind of operating mode respectively
Data, visibility data, temperature field data and wind speed control data.
Embodiment five
The embodiment of the present invention provides a kind of dead face fire test method, uses the assay device as described in embodiment two
Test, specifically include following steps:
Arranging a forced air duct in dead face, simulate forced ventilation pattern, the most forced air duct can root
Independent VFC is realized according to test requirements document；
Burning things which may cause a fire disaster is positioned in dead face, simulates dead face firing condition；
Measured the flue gas characteristic data obtained in dead face by flue gas analyzer, described flue gas characteristic data include cigarette
Granule density, combustable gas concentration, concentration of toxic gases and oxygen concentration；
The visibility data obtained in dead face are measured by visibility meter；
Measured the temperature field data obtained in dead face by thermocouple bundle, and draw according to the temperature field data obtained
Thermo parameters method cloud atlas；
Measured the wind speed control data obtained in dead face by anemobiagraph, and paint according to the wind speed control data obtained
Wind speed control cloud charts processed.
Wherein, as in figure 2 it is shown, the distance of the distinguished and admirable outlet 301 of forced air duct 3 and dead face development end 5 is designated as d2,
D2 takes five kinds of operating modes of 1.5m, 2m, 2.5m, 3m, 3.5m respectively in an experiment, and obtains the flue gas characteristic number under every kind of operating mode respectively
According to, visibility data, temperature field data and wind speed control data.
Embodiment six
The embodiment of the present invention provides a kind of dead face fire test method, uses the assay device as described in embodiment three
Test, specifically include following steps:
One pull-out type air duct of layout and a forced air duct in dead face, Analogue Hybrid air vent mode, its
Middle pull-out type air duct and forced air duct can realize independent VFC respectively according to test requirements document；
Burning things which may cause a fire disaster is positioned in dead face, simulates dead face firing condition；
Measured the flue gas characteristic data obtained in dead face by flue gas analyzer, described flue gas characteristic data include cigarette
Granule density, combustable gas concentration, concentration of toxic gases and oxygen concentration；
The visibility data obtained in dead face are measured by visibility meter；
Measured the temperature field data obtained in dead face by thermocouple bundle, and draw according to the temperature field data obtained
Thermo parameters method cloud atlas；
Measured the wind speed control data obtained in dead face by anemobiagraph, and paint according to the wind speed control data obtained
Wind speed control cloud charts processed.
Wherein, as it is shown on figure 3, the distance of the distinguished and admirable entrance 201 of pull-out type air duct 2 and dead face development end 5 is set as
D3, and distinguished and admirable outlet 301 distance of the distinguished and admirable entrance 201 of pull-out type air duct 2 and forced air duct 3 remains 0.5m.In reality
Test middle d3 and take five kinds of operating modes of 1m, 1.5m, 2m, 2.5m, 3m respectively, and obtain the flue gas characteristic data under every kind of operating mode, energy respectively
See degrees of data, temperature field data and wind speed control data.
On the basis of above-described embodiment four to embodiment six, described dead face fire test method method is also wrapped
Include:
It is respectively adopted the different grillage of the rate of being fuming, cable, liquefied gas, gasoline, diesel oil, methanol and normal heptane to fire as burning things which may cause a fire disaster
Material, tunnel firing condition under the burning things which may cause a fire disaster fuel of the different rate of being fuming of simulation, and for different burning things which may cause a fire disaster fuel, obtain respectively at different fire
Flue gas characteristic data, visibility data, temperature field data and wind speed control data during the fuel of source.
On the basis of above-described embodiment four to embodiment six, described dead face fire test method method is also wrapped
Include:
Set relative distance between burning things which may cause a fire disaster and air duct as D, in test D value-1m respectively ,-0.5m, 0m ,+0.5m ,+
1m, wherein sign represents the relative position of burning things which may cause a fire disaster and service channel, and positive sign represents burning things which may cause a fire disaster and is positioned on the left of service channel, negative sign generation
Table burning things which may cause a fire disaster is positioned on the right side of service channel, thus constitutes five fire location operating modes.
Same burning things which may cause a fire disaster fuel is respectively placed at five fire locations, obtains burning things which may cause a fire disaster respectively when each fire location
Flue gas characteristic data, visibility data, temperature field data and wind speed control data.
As it is shown in figure 5, on the basis of above-described embodiment four to embodiment six, obtain flue gas characteristic by flue gas analyzer
During data, the arrangement of flue gas analyzer is:
Dead face 1 is positioned in the top inner wall directly over burning things which may cause a fire disaster 4 and first flue gas analyzer 601 is set.
The top inner wall of dead face 1 arranges multiple second flue gas analyzer 602, the second described flue gas analyzer
602 are evenly arranged along the bearing of trend of dead face 1.
At dead face 1 middle-range overhead 0.36m height, multiple 3rd flue gas analyzer 603, described the 3rd are set
Flue gas analyzer 603 is evenly arranged along the bearing of trend of dead face 1.Wherein 0.36m height is simulation human eye height, in this reality
Executing the 0.36m height in example is to carry out the human eye height after scaled down, certainly in reality according to the 1:5 of tunnel actual size
In application, selected simulation human eye height can be adjusted according to the size of actual tunnel model.
As shown in Figure 6, on the basis of above-described embodiment four to embodiment six, measured by visibility meter and obtain Du Tou lane
During visibility data in road, the arrangement of visibility meter is:
Multiple visibility meter 701, described visibility meter 701 are set at dead face 1 middle-range overhead 0.36m height
Bearing of trend along dead face 1 is evenly arranged.Wherein 0.36m height is simulation human eye height, 0.36m in the present embodiment
Height is to carry out the human eye height after scaled down according to the 1:5 of tunnel actual size, in actual applications, the most selected
Simulation human eye height can be adjusted according to the size of actual tunnel model.
As it is shown in fig. 7, on the basis of above-described embodiment four to embodiment six, measured by thermocouple bundle and obtain Du Tou lane
During temperature field data in road, the arrangement of thermocouple bundle is:
Setting gradually some row thermocouple bundles 801 in dead face 1 from inside to outside, each column thermocouple bundle 801 is from only head
The top in tunnel 1 is arranged in order to bottom, and each column thermocouple bundle 801 all bearing of trends with dead face 1 are arranged vertically.
In the present embodiment, the measurement point of thermocouple bundle 801 is arranged, for obtaining respectively along the median plane of dead face 1
Temperature and smoke layer temperature is located above temperature, burning things which may cause a fire disaster 4 at dead face 1 ceiling, and according to each temperature measuring point obtained
Data draw thermo parameters method cloud atlas, thus monitor the variations in temperature in dead face in real time.
As Figure 8-9, on the basis of above-described embodiment four to embodiment six, measured by anemobiagraph and obtain Du Tou lane
During wind speed control data in road, the arrangement of anemobiagraph is:
Arranging multiple measuring wind speed cross section 10 in dead face 1, each measuring wind speed cross section 10 is along the extension of dead face 1
Direction is uniformly distributed, and is respectively provided with multiple anemobiagraph 901 on each measuring wind speed cross section 10.
In the present embodiment, described anemobiagraph 901 uses and adds wild multichannel anemometer, on each measuring wind speed cross section 10
Anemobiagraph 901 in 0.25m × 0.25m grid distribution, the adjacent spacing between two measuring wind speed cross sections 10 is 0.5m,
And draw wind speed control cloud charts according to the wind speed control data obtained, thus the wind speed monitored in real time in dead face becomes
Change.
In the various embodiments described above, by the flue gas characteristic data that above-mentioned experiment is obtained, visibility data, temperature number of fields
It is analyzed processing according to wind speed control data, it is possible to set up for the various factors coupling fire model under different operating modes, and then
There is provided foundation for setting up the dead face ventilation smoke exhaust control system under Fire Conditions, and be ventilation smoke extraction system under fire condition
Unlatching provide technical scheme, for safety evacuation create safety path.
In sum, dead face fire test device and method of the present invention, it is possible to arrange in dead face
One pull-out type air duct, simulates exhaust ventilation pattern；A forced air duct, simulation press-in can be arranged in dead face
Formula air vent mode；Can arrange a pull-out type air duct and a forced air duct in dead face, Analogue Hybrid ventilates
Pattern；By foundation and the test operation of these three air vent mode, it is possible to the fire smoke obtained in dead face spreads rule,
Setting up ventilation smoke exhaust model optimum under dead face fire condition, the dead face for occasions such as subway works may meet with
Fire hazard optimal ventilation smoke exhaust pattern is provided.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a dead face fire test device, it is characterised in that include dead face and be arranged on described dead face
In air duct, described air duct is provided with frequency conversion fan；Wherein said air duct is arranged on the inwall of described dead face, and described
Air duct be arranged in parallel with the bearing of trend of described dead face.
Dead face fire test device the most according to claim 1, it is characterised in that described dead face is cylindrical
Concrete duct, the internal diameter of described dead face is 1.2m；Described air duct uses extension type iron sheet air duct, and described air duct internal diameter is
0.12m, described air duct is arranged on distance ground 0.75m and highly locates.
Dead face fire test device the most according to claim 1, it is characterised in that: described dead face is provided with one
Individual air duct, described air duct is pull-out type air duct, and the distinguished and admirable entrance of described pull-out type air duct is arranged on inside described dead face, institute
The distinguished and admirable outlet stating pull-out type air duct is arranged on outside described dead face.
Dead face fire test device the most according to claim 1, it is characterised in that be provided with one in described dead face
Individual air duct, described air duct is forced air duct, and the distinguished and admirable outlet of described forced air duct is arranged on inside described dead face, institute
The distinguished and admirable entrance stating pull-out type air duct is arranged on outside described dead face.
Dead face fire test device the most according to claim 1, it is characterised in that be provided with two in described dead face
Individual air duct, two described air ducts are respectively pull-out type air duct and forced air duct, wherein said pull-out type air duct distinguished and admirable enter
Mouth is arranged on inside described dead face, and the distinguished and admirable outlet of described pull-out type air duct is arranged on outside described dead face；Described
The distinguished and admirable outlet of forced air duct is arranged on inside described dead face, and the distinguished and admirable entrance of described pull-out type air duct is arranged on described
Outside dead face.
6. a dead face fire test method, it is characterised in that specifically include following steps:
In dead face, arrange a pull-out type air duct, simulate exhaust ventilation pattern；Or arrange one in dead face
Forced air duct, simulates forced ventilation pattern；Or in dead face, arrange a pull-out type air duct and a forced wind
Cylinder, Analogue Hybrid air vent mode；
Burning things which may cause a fire disaster is positioned in dead face, simulates dead face firing condition；
Measured the flue gas characteristic data obtained in dead face by flue gas analyzer, described flue gas characteristic data include smoke particle
Concentration, combustable gas concentration, concentration of toxic gases and oxygen concentration；
The visibility data obtained in dead face are measured by visibility meter；
Measured the temperature field data obtained in dead face by thermocouple bundle, and draw temperature according to the temperature field data obtained
Field distribution cloud atlas；
Measured the wind speed control data obtained in dead face by anemobiagraph, and draw wind according to the wind speed control data obtained
Speed Flow Field Distribution cloud atlas.
Dead face fire test method the most according to claim 6, it is characterised in that obtained by flue gas analyzer measurement
The step taking the flue gas characteristic data in dead face includes:
Dead face is positioned in the top inner wall directly over burning things which may cause a fire disaster and first flue gas analyzer is set；
Arranging multiple second flue gas analyzer in the top inner wall of dead face, the second described flue gas analyzer is along Du Tou lane
The bearing of trend in road is evenly arranged；
Multiple 3rd flue gas analyzer, the 3rd described flue gas analysis are set at dead face middle-range overhead 0.36m height
Instrument is evenly arranged along the bearing of trend of dead face.
Dead face fire test method the most according to claim 6, it is characterised in that measured by visibility meter and obtain
The step of the visibility data in dead face includes:
Arranging multiple visibility meter at dead face middle-range overhead 0.36m height, described visibility meter is along dead face
Bearing of trend be evenly arranged.
Dead face fire test method the most according to claim 6, it is characterised in that measured by thermocouple bundle and obtain
The step of the temperature field data in dead face includes:
In dead face, set gradually some row thermocouple bundles from inside to outside, each column thermocouple bundle from dead face top
It is arranged in order to bottom, and the bearing of trend of each column thermocouple Shu Junyu dead face is arranged vertically.
Dead face fire test method the most according to claim 6, it is characterised in that measured by anemobiagraph and obtain
The step of the wind speed control data in dead face includes:
Arranging multiple measuring wind speed cross section in dead face, each measuring wind speed cross section is uniformly divided along the bearing of trend of dead face
Cloth, is respectively provided with multiple anemobiagraph on each measuring wind speed cross section.
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