CN202363007U - Testing and simulating device for fire disasters in narrow and long limited spaces - Google Patents
Testing and simulating device for fire disasters in narrow and long limited spaces Download PDFInfo
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- CN202363007U CN202363007U CN201120463307.7U CN201120463307U CN202363007U CN 202363007 U CN202363007 U CN 202363007U CN 201120463307 U CN201120463307 U CN 201120463307U CN 202363007 U CN202363007 U CN 202363007U
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Abstract
The utility model relates to a testing and simulating device for fire disasters in narrow and long limited spaces. The testing and simulating device comprises a simulating bin, a first thermocouple unit, a second thermocouple unit, a smoke collecting system and a computerized control system, both the length-to-width ratio and the length-to-height ratio of the simulating bin are 10-8:1, a fire generating device is arranged at one end of the bottom of the simulating bin, the first thermocouple unit, the second thermocouple unit and the smoke collecting system are disposed on a side surface of the simulating bin, the computerized control system is used for acquiring temperature and smoke information in the simulating bin and analyzing data, the first thermocouple unit consists of a plurality of thermocouples positioned close to the top of the bin and arrayed along the horizontal direction of the simulating bin, the second thermocouple unit comprises a plurality of thermocouples arrayed along the height direction of the simulating bin, and the density of the thermocouples of the second thermocouple unit is gradually reduced from top to bottom. The testing and simulating device for researching flashover mechanism of the fire disasters in the narrow and long limited spaces is built for the first time, is provided with a complete temperature measuring system and the smoke collecting system, and is reasonable in structural arrangement and high in testing accuracy.
Description
Technical field
The utility model belongs to fire safety evaluating experimental facilities technical field, is specifically related to fire spread and the experimental simulation device that bangs the combustion Evolution Mechanism in a kind of long and narrow restricted clearance
Background technology
in recent years; Along with the fast development of world economy and the continuous quickening of urbanization process, a lot of countries the development and use of the underground space as solving urban land, population and environmental crisis, economizing on resources, walk the important measures of sustainable urbanization road for development.
however compare surface structures, the underground space has many potential safety hazards: the space is narrow and small relatively, the personal security export volume is few, the natural ventilation condition is poor, be difficult to realize natural lighting etc.Therefore, when underground interior volume produced disaster, the harm that is caused will be considerably beyond the similar ground disaster.And fire failure has almost accounted for 1/3 of sum in the underground space, is that generation disaster number of times is maximum in the underground space, loses the most serious a kind of disaster.
underground space belongs to typical restricted clearance building, generally is divided into the long and narrow tunnel formula building and the positive displacement building of large space.Wherein, formula building in tunnel is called underground long and narrow restricted clearance again.And fire can be divided into the fire of open space and the fire of restricted clearance according to the spatial character of its scene.The restricted clearance fire has a typical evolution, i.e. hop process often is called as Hong combustion phenomenon.When Hong combustion took place, fire spread to whole space fast, makes whole chamber or restricted clearance sink into the sea of fire, and all combustible surfaces all take fire; Indoor Combustion is changed to Ventilation Control by fuel control; Unburned gas that below indoor canopy, gathers or steam burst into flames and cause flame to spread rapidly.The major reason that Hong combustion causes the dead crowd of serious crowd to hinder often.Hong combustion is the important phenomenon that receives much concern in Fire Science and the fire engineering as the evolution process that intensity in the fire development process increases rapidly.
yet; Underground long and narrow space is because the singularity of its structure; Different and the common restricted clearance of evolution rule of the development of fire and Hong combustion; Spininess is carried out Hong combustion research to the suitable common chamber of length breadth ratio in the former study, and actually rare to Hong the combustion research of underground long and narrow restricted clearance.Thomas and Bennetts utilize the small scale long and narrow space experiment table of 1.5m * 0.6m * 0.6m and 8 m * 2m * 0.6 m to simulate Hong combustion process respectively, and have compared the influence of different openings position to the flame temperature of scurrying out.The STUVA of research institution of Germany studies the flameproof protection of municipal highway tunnel, rail tunnel, finds that in experiment the heavy goods vehicle fire in the underground long and narrow space can reach Hong combustion state in 7 to 10 minutes.People such as professor Chow have carried out theoretical research to Hong the combustion phenomenon in the long and narrow restricted clearance fire of bus initiation, have shifted experimental formula onto based on the dual area model.
Yet; Underground long and narrow space is because the singularity of its building structure and function; Make in the past theoretical model, experimental data and The numerical results still can not fully explain and analyze Hong the combustion phenomenon in its fire process, it is significant therefore carrying out the fire development process of underground long and narrow restricted clearance and the research of Hong combustion evolution mechanism
Summary of the invention
The purpose of
the utility model provides a kind of fire test analogue means of long and narrow restricted clearance, so that study fire spread and the mechanism of banging the combustion differentiation in the long and narrow restricted clearance.
The utility model adopts following technical scheme:
A kind of fire test analogue means of long and narrow restricted clearance comprises:
The simulation storehouse, it is a cuboid; The length breadth ratio in said simulation storehouse is 10 ~ 8:1, and length to height ratio is 10 ~ 8:1; In the length in simulation storehouse and two faces at wide place, one is end face, and another is the bottom surface; The length in simulation storehouse is the end face in simulation storehouse with the side of two faces at high place for the simulation storehouse, two faces at the wide and high place in simulation storehouse; The end face in said simulation storehouse is provided with a plurality of exhaust openings, and an end of bottom surface, said simulation storehouse is provided with fiery generating means;
The first thermopair unit; It is arranged on the side in said simulation storehouse; Be included near the position on top, said side many horizontal thermopairs of length direction along the simulation storehouse; Part near fiery generating means in these many thermopairs constitutes nearly fire end thermopair group, and remainder constitutes fire end thermopair group far away, and the thermopair of said nearly fire end thermopair group is arranged tightr than the thermopair arrangement of fire end thermopair group far away;
The second thermopair unit, itself and the said first thermopair unit are arranged on the same side, comprise the many thermopairs of vertically arranging along the short transverse in simulation storehouse, and the arrangement of these many thermopairs is loose gradually from top to bottom; The said second thermopair unit has a plurality of, and these a plurality of second thermopair unit evenly distribute on the length direction in simulation storehouse;
Collection cigarette system comprises the many smoke collection pipes that are connected with said exhaust opening and an exhaust fume collecting hood that is connected with the said fiery generating means end face far away apart in said simulation storehouse;
computer control system, it comprises the temperature that is used for gathering the simulation storehouse and the information acquisition module of flue gas information, and is used for data analysis module that the temperature of being gathered and flue gas information are analyzed.
preferably, the bulkhead in said simulation storehouse is made up of the steel outer wall quartz wall inboard with being attached at said steel outer wall.
further, the ratio of the thickness of said steel outer wall and said quartz wall thickness is 1:5 ~ 10.
preferably, said nearly fire end thermopair group and said fire end thermopair group far away the simulation storehouse length direction on shared distance ratio be 1:2 ~ 4.
preferably are provided with a plurality of view windows of processing with flame resistant glass on the side relative with side, place, the second thermopair unit with the said first thermopair unit in said simulation storehouse.
preferably, two end faces in said simulation storehouse all are provided with end cap.
preferably, said fire test analogue means also comprises a plurality of supporting legs that are arranged on simulation storehouse bottom, are used to support said simulation storehouse.
Skidding mechanism for ease of moving the utility model device, has been installed in the bottom of said supporting leg further in
.
Because the enforcement of above technical scheme, the utility model compared with prior art has following advantage:
the utility model has been set up the fire test analogue means of the underground long and narrow restricted clearance of a cover research Hong combustion mechanism first, and this device has complete temperature measurement system and collection cigarette system, and structure is provided with rationally, and the experiment accuracy is high.
Description of drawings
are done further detailed explanation below in conjunction with accompanying drawing and concrete embodiment to the utility model.
Fig. 1 is the one-piece construction synoptic diagram of the utility model device;
Fig. 2 is the plan structure synoptic diagram of the utility model device;
Fig. 3 is the cross section cross-sectional schematic of the utility model device frame wall;
Fig. 4 is the thermopair integral body of the utility model device synoptic diagram of arranging;
Fig. 5 is the thermopair of the utility model device synoptic diagram of vertically arranging;
wherein: 1, simulation storehouse; 2, exhaust opening; 3, fiery generating means; 4, the second thermopair unit; 5, nearly fire end thermopair group; 6, fire end thermopair group far away; 7, exhaust fume collecting hood; 8, view window; 9, end cap; 10, steel outer wall; 11, quartz wall; 12, supporting leg.
Embodiment
are done further detailed explanation below in conjunction with concrete embodiment to the utility model, but are not limited to these embodiment.
Referring to Fig. 1 to 5, the fire test analogue means of present embodiment mainly is generation, the rule of development that is used in the small size space of 10:1 research Hong combustion, and the condition of influence Hong combustion, specifically comprises:
The first thermopair unit; It is arranged on the side in simulation storehouse 1; Be included near the position on top, said side many horizontal thermopairs of length direction along simulation storehouse 1; Part near fiery generating means 3 in these many thermopairs constitutes nearly fire end thermopair group 5, and remainder constitutes fire end thermopair group 6 far away, and the thermopair of said nearly fire end thermopair group 5 is arranged tightr than the thermopair arrangement of fire end thermopair group 6 far away;
The second thermopair unit 4, itself and the first thermopair unit are arranged on the same side, comprise the many thermopairs of vertically arranging along the short transverse in simulation storehouse 1, and the arrangement of these many thermopairs is loose gradually from top to bottom; In the present embodiment, the second thermopair unit 4 is provided with five, and these five second thermopair unit 4 evenly distribute on the length direction in simulation storehouse 1;
Collection cigarette system comprises the many smoke collection pipes that are connected with said exhaust opening 2 and an exhaust fume collecting hood 7 that is connected with said fiery generating means 3 end faces far away apart in said simulation storehouse 1;
computer control system, it comprises the temperature that is used for gathering simulation storehouse 1 and the information acquisition module of flue gas information, and is used for data analysis module that the temperature of being gathered and flue gas information are analyzed.
are as shown in Figure 3; The bulkhead in the simulation storehouse 1 of present embodiment is made up of steel outer wall 10 and the quartz wall 11 that are attached at said steel outer wall 10 inboards; Particularly, steel outer wall 10 is steel plates of thick 4mm, and quartz wall 11 is quartz plates (being silicate aluminum board) of thick 30mm.
are referring to Fig. 4; In the present embodiment; The nearly fire end thermopair group 5 of the first thermopair unit is made up of 6 equidistant thermopairs of each interval; Fire end thermopair group 6 far away is made up of 9 equidistant thermopairs of each interval; And nearly fire end thermopair group 5 is about 1:3 with fire end thermopair group 6 far away shared distance ratio on the length direction in simulation storehouse 1, can find out also that thus the thermopair arrangement of nearly fire end thermopair group 5 is arranged tightr than the thermopair of fire end thermopair group 6 far away.Referring to Fig. 5, the second thermopair unit 4 of present embodiment is made up of 5 thermopairs arranging that loosen gradually from top to bottom; Particularly, h
1
Be the distance of the first thermopair unit, be 4cm to simulation storehouse 1 end face; h
2
, h
3
, h
4
, h
5
And h
6
Be respectively the distances of 5 thermopairs of the second thermopair unit, be followed successively by 8cm, 12.5cm, 19cm, 25cm and 37.5cm to simulation storehouse 1 end face.
in addition; Simulation storehouse 1 is provided with the view window 8 that the flame resistant glass of 3 anti-1100 ℃ of high temperature of usefulness is processed on the side relative with side, the said first thermopair unit and second thermopair unit place; Three view windows 8 evenly distribute, and simulation storehouse 1 also all is provided with the end cap 9 (Fig. 1 and Fig. 5) that can remove up and down two ends.
are simulated 1 bottom, storehouse and also are provided with a plurality of supporting legs 12 that are used to support simulation storehouse 1, and move this device for ease simultaneously, and supporting leg 12 bottoms also are equipped with skidding mechanism.
When using the present embodiment device to carry out the simulated fire experiment, operation as follows:
1., each parts and the wire connection state of testing fixture, guarantee that measurement device is errorless;
2., smoke collection pipe is communicated with specifying exhaust opening, exhaust fume collecting hood is communicated with an end face of simulating the storehouse according to experimental design;
3., open collection cigarette system, by the fixing wind speed of experimental design;
4., start computer control system, the flue gas information of temperature information that the collection thermopair transmits and collection cigarette systems communicate;
5., make fiery generating means on fire, close the end cap of nearly fire end simultaneously;
6., fuel afterburnt or burning arrive setting-up time after burning things which may cause a fire disaster break off, the control system of shutting down computer, experiment finishes.
The fire test analogue means of present embodiment can get the distributed intelligence of auto levelizer temperature inside, with anti-process of giving birth to of research Hong combustion and critical condition etc., can also obtain CO in the flue gas simultaneously
2
With CO, O
2
Deng concentration information, and then can study the burning efficiency of burning things which may cause a fire disaster.
fiery generating means can be selected the device multiple on fire of any known for use.In the present embodiment, a kind of structure of fiery generating means is: comprise placing the food tray of simulation in the storehouse, passing from simulation bottom surface, storehouse and be used to support the bracing frame of food tray and be positioned at the weigh scale below the said simulation storehouse that bracing frame promptly is placed on this weigh scale.After this fiery generating means was on fire, dyestuff oil was along with burning reduces gradually, and the intensity of a fire of burning things which may cause a fire disaster also can diminish gradually.Another kind of fiery generating means comprises the oil supply mechanism that can constantly give the food tray fuel feeding in the simulation storehouse, and after this fiery generating means was on fire, dyestuff oil can not carry out and reduces along with burning, so burning things which may cause a fire disaster can remain fiery state.Therefore, the present embodiment device can also with the use that matches of multiple different fiery generating meanss, be convenient to the researchist and study fire spread and the with a loud crash phenomenon of different burning things which may cause a fire disaster in this kind dimensional space.
More than the utility model has been done detailed description; Its purpose is to let the personage that is familiar with this art can understand the content of the utility model and implements; Can not limit the protection domain of the utility model with this; All equivalences of doing according to the spirit of the utility model change or modify, and all should be encompassed in the protection domain of the utility model
Claims (8)
1. the fire test analogue means of a long and narrow restricted clearance, it is characterized in that: described fire test analogue means comprises:
Simulation storehouse (1), it is a cuboid; The length breadth ratio in said simulation storehouse (1) is 10 ~ 8:1, and length to height ratio is 10 ~ 8:1; In the length in simulation storehouse (1) and two faces at wide place, one is end face, and another is the bottom surface; Two faces at the length in simulation storehouse (1) and high place are the end face in simulation storehouse (1) for the side in simulation storehouse (1), two faces at the wide and high place in simulation storehouse (1); The end face in said simulation storehouse (1) is provided with a plurality of exhaust openings (2), and an end of bottom surface, said simulation storehouse (1) is provided with fiery generating means (3);
The first thermopair unit; It is arranged on the side in said simulation storehouse (1); Be included in many horizontal thermopairs of length direction near the said simulation storehouse, edge, position (1) on top, said side; Part near fiery generating means (3) in these many thermopairs constitutes nearly fire end thermopair group (5); Remainder constitutes fire end thermopair group far away (6), and the thermopair of said nearly fire end thermopair group (5) is arranged tightr than the thermopair arrangement of fire end thermopair group far away (6);
The second thermopair unit (4), itself and the said first thermopair unit are arranged on the same side, comprise the many thermopairs of vertically arranging along the short transverse of said simulation storehouse (1), and the arrangement of these many thermopairs is loose gradually from top to bottom; The said second thermopair unit (4) has a plurality of, and these a plurality of second thermopair unit (4) evenly distribute on the length direction in said simulation storehouse (1);
Collection cigarette system comprises the many smoke collection pipes that are connected with said exhaust opening (2) and an exhaust fume collecting hood (7) that is connected with said fiery generating means (3) end face far away apart in said simulation storehouse (1);
Computer control system, it comprises and is used for gathering the temperature in simulation storehouse (1) and the information acquisition module of flue gas information, and is used for data analysis module that the temperature of being gathered and flue gas information are analyzed.
2. fire test analogue means according to claim 1 is characterized in that: the bulkhead in said simulation storehouse (1) is by steel outer wall (10) and be attached at inboard quartz wall (11) formation of said steel outer wall (10).
3. fire test analogue means according to claim 2 is characterized in that: the ratio of the thickness of said steel outer wall (10) and said quartz wall (11) thickness is 1:5 ~ 10.
4. fire test analogue means according to claim 1 is characterized in that: said nearly fire end thermopair group (5) is 1:2 ~ 4 with said fire end thermopair group far away (6) shared distance ratio on the length direction in said simulation storehouse (1).
5. fire test analogue means according to claim 1 is characterized in that: be provided with a plurality of view windows of processing with flame resistant glass (8) on the side relative with side, place, the second thermopair unit with the said first thermopair unit in said simulation storehouse (1).
6. fire test analogue means according to claim 1 is characterized in that: two end faces in said simulation storehouse (1) all are provided with end cap (9).
7. fire test analogue means according to claim 1 is characterized in that: said fire test analogue means also comprises a plurality of supporting legs (12) that are arranged on bottom, said simulation storehouse (1), are used to support said simulation storehouse (1).
8. fire test analogue means according to claim 7 is characterized in that: said supporting leg (12) bottom is equipped with skidding mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120463307.7U CN202363007U (en) | 2011-11-21 | 2011-11-21 | Testing and simulating device for fire disasters in narrow and long limited spaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120463307.7U CN202363007U (en) | 2011-11-21 | 2011-11-21 | Testing and simulating device for fire disasters in narrow and long limited spaces |
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| CN202363007U true CN202363007U (en) | 2012-08-01 |
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| CN201120463307.7U Expired - Fee Related CN202363007U (en) | 2011-11-21 | 2011-11-21 | Testing and simulating device for fire disasters in narrow and long limited spaces |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385812A (en) * | 2011-11-21 | 2012-03-21 | 中国科学技术大学苏州研究院 | Fire experiment simulation device in narrow and long limited space |
| CN104677659A (en) * | 2015-01-19 | 2015-06-03 | 招商局重庆交通科研设计院有限公司 | Fire simulation system for large-crosssection immersed tube tunnel |
| CN105723438A (en) * | 2015-09-06 | 2016-06-29 | 南京森林警察学院 | Forest fire intensity simulator and application method thereof |
| CN104777004B (en) * | 2015-01-19 | 2018-01-30 | 招商局重庆交通科研设计院有限公司 | The fire integrated test method of big cross section immersed tube tunnel |
| CN107845301A (en) * | 2016-09-18 | 2018-03-27 | 中国科学院沈阳自动化研究所 | A kind of Intelligence Simulation of compartment fire simulation Training scene |
| CN115909878A (en) * | 2022-12-12 | 2023-04-04 | 中国科学技术大学 | Small-scale multi-layer cabin-holding section fire smoke flow experiment simulation device |
-
2011
- 2011-11-21 CN CN201120463307.7U patent/CN202363007U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102385812A (en) * | 2011-11-21 | 2012-03-21 | 中国科学技术大学苏州研究院 | Fire experiment simulation device in narrow and long limited space |
| CN104677659A (en) * | 2015-01-19 | 2015-06-03 | 招商局重庆交通科研设计院有限公司 | Fire simulation system for large-crosssection immersed tube tunnel |
| CN104677659B (en) * | 2015-01-19 | 2018-01-30 | 招商局重庆交通科研设计院有限公司 | Big cross section immersed tube tunnel fire disaster simulation system |
| CN104777004B (en) * | 2015-01-19 | 2018-01-30 | 招商局重庆交通科研设计院有限公司 | The fire integrated test method of big cross section immersed tube tunnel |
| CN105723438A (en) * | 2015-09-06 | 2016-06-29 | 南京森林警察学院 | Forest fire intensity simulator and application method thereof |
| WO2017035830A1 (en) * | 2015-09-06 | 2017-03-09 | 南京森林警察学院 | Forest fire intensity simulator and method for use thereof |
| AU2015381974B2 (en) * | 2015-09-06 | 2017-08-31 | Nanjing Forest Police College | Forest fire intensity simulator and use method thereof |
| CN105723438B (en) * | 2015-09-06 | 2018-06-12 | 南京森林警察学院 | A kind of Forest Fire strength simulation device and its application method |
| CN107845301A (en) * | 2016-09-18 | 2018-03-27 | 中国科学院沈阳自动化研究所 | A kind of Intelligence Simulation of compartment fire simulation Training scene |
| CN115909878A (en) * | 2022-12-12 | 2023-04-04 | 中国科学技术大学 | Small-scale multi-layer cabin-holding section fire smoke flow experiment simulation device |
| CN115909878B (en) * | 2022-12-12 | 2024-05-28 | 中国科学技术大学 | Small-scale multi-layer accommodation section fire smoke flow experiment simulation device |
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Granted publication date: 20120801 Termination date: 20161121 |
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