CN108428383A - A kind of subway tunnel experimental simulation device using non-straight axis jet blower mechanical smoke extraction - Google Patents
A kind of subway tunnel experimental simulation device using non-straight axis jet blower mechanical smoke extraction Download PDFInfo
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- CN108428383A CN108428383A CN201810308867.1A CN201810308867A CN108428383A CN 108428383 A CN108428383 A CN 108428383A CN 201810308867 A CN201810308867 A CN 201810308867A CN 108428383 A CN108428383 A CN 108428383A
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- tunnel
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- jet blower
- axis jet
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- 238000004088 simulation Methods 0.000 title claims abstract description 55
- 239000000779 smoke Substances 0.000 title claims abstract description 43
- 238000000605 extraction Methods 0.000 title claims abstract description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 230000013011 mating Effects 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 25
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- 239000003517 fume Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 238000009529 body temperature measurement Methods 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 238000011160 research Methods 0.000 abstract description 6
- 238000011172 small scale experimental method Methods 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract 2
- 238000013461 design Methods 0.000 abstract 1
- 238000011156 evaluation Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004379 similarity theory Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The present invention provides a kind of subway tunnel experimental simulation device using non-straight axis jet blower mechanical smoke extraction, including experimental simulation tunnel and mating TT＆C system；This experimental provision is the small-scale experiment platform that smoke movement, fire attack etc. carry out comprehensive system research when fire specially occurs to the subway tunnel using non-straight axis jet blower ventilation smoke exhaust.Overcome that full-scale experiment is of a high price and numerical simulation tool inaccurate feature on the basis of forefathers, the repeatability in turn ensuring experiment has prodigious application value for carrying out laboratory science research and the control of practical subway tunnel flue gas, non-straight axis jet blower smoke discharging effect, burning things which may cause a fire disaster suppression system simulation test.It has broad application prospects and important practical directive significance to the flue gas control, suppression system design and test evaluation of the subway tunnel using non-straight axis jet blower mechanical smoke extraction.
Description
Technical field
The invention belongs to fire safety evaluating technical field of experiment equipment, and in particular to a kind of to use non-straight axis jet blower machine
The subway tunnel experimental simulation device of tool smoke evacuation, for the subway tunnel using the smoke evacuation of non-straight axis jet blower
When flue gas mobility status and fume control system carry out simulation test.
Background technology
With the continuous social and economic development, rail traffic mode with quick, large conveying quantity, pollution it is small, efficient the features such as,
As indispensable component part in Traffic Configuration.A major way of the subway as urban track traffic, becomes
Solve big city, megalopolis traffic conflict powerful, effectively meet the traffic needs of urbanization.But from the world
Since first subway is opened, underground fire hazard just happens occasionally, some even cause great casualties.Subway belongs to personnel
Intensive hypogee, once fire occurs, flue gas is spread in the entire underground space quickly to come, simultaneously because the underground space
Restricted gender, dense smoke and heat are not easy to be discharged, make troubles to evacuating personnel and fire-fighting and rescue.When therefore in order to ensure fire
Personnel safety, consideration more efficiently smoke evacuation system is set in subway tunnel.
Currently, subway tunnel mainly carries out longitudinal mechanical smoke extraction using linear jet blower.Linear jet stream in tunnel
Wind turbine is mounted on top mostly, so in the case of ventilation, distinguished and admirable can inevitably be formed with upper wall surface rubs, and causes to push away
Power is lost rather than straight axis jet blower can greatly reduce this loss, thrust is concentrated among tunnel so that tunnel
Middle air volume adjustment is more uniform, tobacco control and smoke exhaust efficiency higher.
The research of forefathers is mostly using the ventilation situation of the non-straight axis jet blower of technique study of numerical simulation, for tunnel
The smoke discharging effect of non-straight axis jet blower rarely has research when occurring fire in road.Seung-Chul Lee et al. utilize CFD moulds
Ventilation situation of the non-straight axis jet blower when different angle is presented in air hose, result of study show wind turbine air hose most in quasi- tunnel
Good angle is 6 degree.Tebr Chammem et al. are simulated using CFD and are disposed non-straight axis jet blower, wind in tunnel two side walls
Influence of the machine in different angle to tunnel flow field, it is in 10 that the best angle that PRELIMINARY RESULTS obtains air hose, which is with wall surface,
Degree.Also in CFD simulation vcehicular tunnels in no vehicle and congested in traffic two kinds fire occurs for V.Betta et al.
When calamity, the influence of the non-straight axis jet blower of different angle to temperature field, flow field in tunnel.
However, due to the particularity in subway sectional tunnel space so that the result of previous test data and numerical simulation
It cannot fully disclose and be used to analyze the effect of non-straight axis jet blower mechanical smoke extraction, it is often more important that, full-scale fire is real
Test need to transfer a large amount of manpower and materials, economic drain is big, condition is uncontrollable, influence subway tunnel operation, experiment be not easy to open up
It opens.So carrying out the small-scale experiment research for meeting similarity theory, the subway of non-straight axis jet blower mechanical smoke extraction is disclosed
The Regularity of Smoke Movement of tunnel fire hazard is a kind of better choice.Meanwhile small-scale experiment have easily it is handling, good can
Reproducibility and measurement result it is with a high credibility the advantages that.
Invention content
The object of the present invention is to provide a kind of subway tunnel experiments using non-straight axis jet blower mechanical smoke extraction
Simulator can be studied in laboratory scale Imitating subway tunnel combustion case and use non-straight axis jet blower
The Regularity of Smoke Movement when subway tunnel of mechanical smoke extraction develops suitable fume control system.
The present invention takes following technical scheme：
A kind of subway tunnel experimental simulation device using non-straight axis jet blower mechanical smoke extraction, the fire
Experimental simulation device includes：Experimental simulation tunnel, blower fan system and mating TT＆C system；
The experimental simulation tunnel, for cylinder；The ratio between the length in the simulation tunnel and cross-sectional diameter are 16:1, mould
Quasi- tunnel both ends are opening；Simulation tunnel one end bottom is provided with burning things which may cause a fire disaster generating means；
The blower fan system, including the non-straight axis jet blower in the variable-angle of simulation tunnel internal, the wind are set
Machine can in the arbitrary adjusting position of tunnel top axis line position, and air hose and horizontal fan line included angle can 0~20 degree it
Between adjust, wind turbine vertical position can arbitrarily be adjusted；
The mating TT＆C system, including wind velocity measurement system, smoke temperature measurement system, flue gas flow field display system,
External machice to supply fan, collection cigarette system and computer control system in simulation tunnel side is set；The measuring wind speed system
System include be arranged in simulation tunnel internal wind turbine on the right side of high temperature wind speed probe array and with its signal acquiring system；The cigarette
Gas temperature measurement system include be arranged it is described simulation tunnel inner fan on the right side of symmetrical distribution thermocouple beam and its
Temperature data collecting system；The flue gas flow field display system includes being arranged in the laser light sheet of simulation tunnel right openings
And to video camera that flue gas flow field is recorded；The outer fan is arranged outside described simulation tunnel one end, is used for
Simulate the natural wind speed in tunnel；The collection cigarette system, setting the simulation tunnel distance burning things which may cause a fire disaster generating means farther out
The outside of one end, including exhaust fume collecting hood and smoke exhaust pipe；The computer control system, for the data information to being acquired into
The control integration module of row analysis.
Wherein, the tunnel wall in the simulation tunnel is made of heat safe tempered glass.
Wherein, it can be arranged at an arbitrary position as needed on the tunnel inner top central axes in the simulation tunnel non-straight
Axis jet blower.
Wherein, the non-straight axis jet blower air hose and horizontal axis angle can be adjusted between 0~20 degree, wind
Machine vertical position can be adjusted arbitrarily.
Wherein, the burning things which may cause a fire disaster can be placed in bottom any position in the tunnel.
Wherein, which has done necessary simplification under the structure of actual tunnel, mainly by tunnel cross sectional
It is reduced to circle.
Wherein, the fire test simulator further includes being arranged in the simulation tunnel bottom, being used to support the mould
Multiple supporting racks in quasi- tunnel.
The advantages and positive effects of the present invention are：
(1) in terms of safety and environment friendly, using ethyl alcohol pond fire as burning things which may cause a fire disaster, burning is fully complete, and product is clear
It is clean；Meanwhile the smoke simulation fire smoke generated using aerosol producer, it is environmental-friendly, it is pollution-free, to human body without bad thorn
Swash；
(2) in terms of simulation of smoke movement experiment effect, experimental bench can be with the sprawling of flue gas in the true tunnel of full simulation
With flow regime of the flue gas under the effect of non-straight axis jet blower, and experimentation can be clearly monitored by tempered glass
And phenomenon；
(3) in terms of experimental measurement system, advanced complete wind velocity measurement system, smoke temperature measurement system, flue gas stream
Display system and computer control system, flow of flue gas parameter and tobacco control effect can be carried out comprehensive observation and
Research；
(4) in terms of experimental cost, this small-scale experiment platform expends less compared to large-sized experimental bench, and repeatability is strong,
It is easy to operate while accuracy is high compared with computer simulation method.
Description of the drawings
Fig. 1 is the subway tunnel experimental simulation device of the present invention using non-straight axis jet blower mechanical smoke extraction
A kind of overall structure diagram of embodiment；
Fig. 2 is the subway tunnel experimental simulation device of the present invention using non-straight axis jet blower mechanical smoke extraction
A kind of A-A diagrammatic cross-sections of embodiment；
Fig. 3 is the subway tunnel experimental simulation device of the present invention using non-straight axis jet blower mechanical smoke extraction
A kind of B-B diagrammatic cross-sections of embodiment；
Figure label：1- experimental bench main bodys；The non-straight axis jet blowers of 2-；3- fuel and burning things which may cause a fire disaster；4- supporting racks；5- first
Speed probe string；6- second speeds probe string；7- third speeds probe string；8- fourth speeds probe string；9- first temperature probes
String；10- second temperature probe strings；11- third temp probe strings；The 4th temp probe strings of 12-；13- laser light sheets；14- takes the photograph
Camera；15- scales；16- outer fans；17- exhaust fume collecting hoods；18- smoke exhaust pipes.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is further described by embodiment.
Referring to Fig. 1-3, using the reality of the subway tunnel experimental simulation device of non-straight axis jet blower mechanical smoke extraction
It includes the cylindrical, hollow tunnel made of tempered glass to test platform main body 1, and non-straight axis, which is arranged, on tunnel inner top central axes penetrates
Flow fan 2 sets fuel and burning things which may cause a fire disaster 3 in tunnel, and supporting rack 4 is arranged below tunnel, outer fan 16, Tunnel Right are arranged on the left of tunnel
Smoke collecting device, including exhaust fume collecting hood 17, smoke exhaust pipe 18 are arranged at side opening.The long 8m of experimental bench main body, tunnel diameter of section 0.5m.
Referring to figure 2-3, First Speed probe string 5, the are arranged symmetrically on the right side of the tunnel internal wind turbine at two different locations
Two speed probe string 6 and third speed probe string 7, fourth speed probe string 8.Two different locations on the right side of tunnel internal wind turbine
Place is arranged symmetrically first temperature probe string 9, second temperature probe string 10 and third temp probe string 11, the 4th temp probe string
12.Laser light sheet 13 is used for showing that flue gas flow field, video camera 14 record experimentation and phenomenon.Fuel and burning things which may cause a fire disaster 3 are arranged in
On tunnel bottom central axes.
Referring to Fig. 3, scale 15 is set at tunnel right-side outlet, the height of flue gas layer can be clearly displayed.
Referring to Fig. 1-2, the non-straight axis jet stream wind on outer fan 16 and tunnel inner top central axes on the left of tunnel is opened
Machine 2, fuel and burning things which may cause a fire disaster 3 are arranged on the central axes of tunnel experiment platform bottom, and after lighting fuel, high temperature fire cigarette is generated in tunnel
Gas, flue gas flow out under the effect of non-straight axis jet blower from Tunnel Right side.It can be clear by laser light sheet 15 in experiment
It observes flow condition of the flue gas in tunnel experiment platform and is clearly recorded with video camera 14.It is popped one's head in by First Speed
String 5, second speed probe string 6, third speed probe string 7, fourth speed probe string 8 record tunnels in flue gas penetrated in non-straight axis
Flow fan effect under flowing velocity, by first temperature probe string 9, second temperature probe string 10, third temp probe string 11,
4th temp probe string 12 records the temperature field of high-temperature flue gas in tunnel.Flue gas layer is recorded by scale 15 at tunnel right-side outlet
Highly.
What the present invention did not elaborated partly belongs to techniques well known.
Claims (7)
1. a kind of subway tunnel experimental simulation device using non-straight axis jet blower mechanical smoke extraction, it is characterised in that：
The fire test simulator includes：Experimental simulation tunnel, blower fan system and mating TT＆C system；
The experimental simulation tunnel, for cylinder；The ratio between the length in the simulation tunnel and cross-sectional diameter are 16:1, simulate tunnel
Road both ends are opening；Simulation tunnel one end bottom is provided with burning things which may cause a fire disaster generating means；
The blower fan system, including the non-straight axis jet blower in the variable-angle of simulation tunnel internal is set, which can
In the arbitrary adjusting position of tunnel top axis line position, and air hose and horizontal fan line included angle can be adjusted between 0~20 degree
Section, wind turbine vertical position can arbitrarily be adjusted；
The mating TT＆C system, including wind velocity measurement system, smoke temperature measurement system, flue gas flow field display system, setting
External machice to supply fan, collection cigarette system and computer control system in simulation tunnel side；The wind velocity measurement system packet
Include be arranged in simulation tunnel internal wind turbine on the right side of high temperature wind speed probe array and with its signal acquiring system；The flue gas temperature
Degree measuring system includes that the thermocouple beam and its temperature of the symmetrical distribution on the right side of the inner fan in the simulation tunnel is arranged
Data collecting system；The flue gas flow field display system includes being arranged in the simulation laser light sheet of tunnel right openings and right
Flue gas stream grows the video camera recorded；The outer fan is arranged outside described simulation tunnel one end, for simulating
Natural wind speed in tunnel；The collection cigarette system, setting is in simulation tunnel distance burning things which may cause a fire disaster generating means one end farther out
Outside, including exhaust fume collecting hood and smoke exhaust pipe；The computer control system, for dividing the data information acquired
The control integration module of analysis.
2. the subway tunnel experimental simulation according to claim 1 using non-straight axis jet blower mechanical smoke extraction fills
It sets, it is characterised in that：The tunnel wall in the simulation tunnel is made of heat safe tempered glass.
3. the subway tunnel experimental simulation according to claim 1 using non-straight axis jet blower mechanical smoke extraction fills
It sets, it is characterised in that：It can be arranged at an arbitrary position as needed on the tunnel inner top central axes in the simulation tunnel non-
Straight axis jet blower.
4. the subway tunnel experimental simulation according to claim 1 using non-straight axis jet blower mechanical smoke extraction fills
It sets, it is characterised in that：The non-straight axis jet blower air hose and horizontal axis angle can be adjusted between 0~20 degree,
Wind turbine vertical position can be adjusted arbitrarily.
5. the subway tunnel experimental simulation according to claim 1 using non-straight axis jet blower mechanical smoke extraction fills
It sets, it is characterised in that：The burning things which may cause a fire disaster can be placed in bottom any position in the tunnel.
6. the subway tunnel experimental simulation according to claim 1 using non-straight axis jet blower mechanical smoke extraction fills
It sets, it is characterised in that：The experimental simulation device has done necessary simplification under the structure of actual tunnel, mainly by tunnel cross sectional
It is reduced to circle.
7. the subway tunnel experimental simulation according to claim 1 using non-straight axis jet blower mechanical smoke extraction fills
It sets, it is characterised in that：The fire test simulator further includes being arranged in the simulation tunnel bottom, being used to support the mould
Multiple supporting racks in quasi- tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308867.1A CN108428383B (en) | 2018-04-09 | 2018-04-09 | Subway tunnel fire experiment simulation device adopting non-straight axis jet fan for mechanical smoke exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308867.1A CN108428383B (en) | 2018-04-09 | 2018-04-09 | Subway tunnel fire experiment simulation device adopting non-straight axis jet fan for mechanical smoke exhaust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108428383A true CN108428383A (en) | 2018-08-21 |
| CN108428383B CN108428383B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308867.1A Active CN108428383B (en) | 2018-04-09 | 2018-04-09 | Subway tunnel fire experiment simulation device adopting non-straight axis jet fan for mechanical smoke exhaust |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482693A (en) * | 2021-08-26 | 2021-10-08 | 闫晓俊 | Tunnel smoke-proof partition simulation device and method, calculation model and application |
| CN114061996A (en) * | 2021-10-13 | 2022-02-18 | 北京工业大学 | Device for simulating longitudinal ventilation and smoke control effect of fire hazard of highway tunnel and smoke control method |
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| KR20060041054A (en) * | 2004-11-08 | 2006-05-11 | 한국철도기술연구원 | The smoke control and ventilation a test device for railway tunnel |
| JP2009243241A (en) * | 2008-03-31 | 2009-10-22 | Sohatsu System Kenkyusho:Kk | Tunnel ventilation control system employing jet fan of two way traffic tunnel |
| CN102735415A (en) * | 2012-06-08 | 2012-10-17 | 中国科学技术大学 | Underground highway tunnel fire disaster experiment simulating device adopting vertical shaft to carry out natural smoke extraction |
| CN105243950A (en) * | 2015-11-05 | 2016-01-13 | 合肥工业大学 | Fire ventilation and smoke exhaust experimental simulation device based on urban underground traffic linkage tunnel system |
| CN208796490U (en) * | 2018-04-09 | 2019-04-26 | 中国科学技术大学 | A kind of subway tunnel experimental simulation device using non-straight axis jet blower mechanical smoke extraction |
-
2018
- 2018-04-09 CN CN201810308867.1A patent/CN108428383B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060041054A (en) * | 2004-11-08 | 2006-05-11 | 한국철도기술연구원 | The smoke control and ventilation a test device for railway tunnel |
| JP2009243241A (en) * | 2008-03-31 | 2009-10-22 | Sohatsu System Kenkyusho:Kk | Tunnel ventilation control system employing jet fan of two way traffic tunnel |
| CN102735415A (en) * | 2012-06-08 | 2012-10-17 | 中国科学技术大学 | Underground highway tunnel fire disaster experiment simulating device adopting vertical shaft to carry out natural smoke extraction |
| CN105243950A (en) * | 2015-11-05 | 2016-01-13 | 合肥工业大学 | Fire ventilation and smoke exhaust experimental simulation device based on urban underground traffic linkage tunnel system |
| CN208796490U (en) * | 2018-04-09 | 2019-04-26 | 中国科学技术大学 | A kind of subway tunnel experimental simulation device using non-straight axis jet blower mechanical smoke extraction |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482693A (en) * | 2021-08-26 | 2021-10-08 | 闫晓俊 | Tunnel smoke-proof partition simulation device and method, calculation model and application |
| CN113482693B (en) * | 2021-08-26 | 2024-04-09 | 闫晓俊 | Tunnel smoke-proof partition division simulation device and method, calculation model and application |
| CN114061996A (en) * | 2021-10-13 | 2022-02-18 | 北京工业大学 | Device for simulating longitudinal ventilation and smoke control effect of fire hazard of highway tunnel and smoke control method |
| CN114061996B (en) * | 2021-10-13 | 2024-03-26 | 北京工业大学 | Device for simulating longitudinal ventilation smoke control effect of highway tunnel fire and smoke control method |
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| CN108428383B (en) | 2024-06-21 |
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