CN110111635A - A kind of double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment - Google Patents
A kind of double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment Download PDFInfo
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- CN110111635A CN110111635A CN201910484994.1A CN201910484994A CN110111635A CN 110111635 A CN110111635 A CN 110111635A CN 201910484994 A CN201910484994 A CN 201910484994A CN 110111635 A CN110111635 A CN 110111635A
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000002474 experimental method Methods 0.000 claims abstract description 32
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003546 flue gas Substances 0.000 claims abstract description 11
- 238000011160 research Methods 0.000 claims abstract description 7
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 20
- 239000001294 propane Substances 0.000 claims description 14
- 239000005341 toughened glass Substances 0.000 claims description 10
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000004088 simulation Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 210000000003 hoof Anatomy 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004379 similarity theory Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a kind of double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment, including tunnel unit, train unit, track element, fire source analogue unit, longitudinal ventilation unit, fire parameter measuring unit.Wherein: tunnel unit uses arc ceiling structure, is seated ground；Train unit is placed in tunnel unit, controls its movement by the track element on ground；Fire source analogue unit is placed in train unit, the fire plume needed for generating experiment；Longitudinal ventilation unit is placed on tunnel unit one end, for providing longitudinal ventilation；Fire parameter measuring unit is used to acquire the parameters in experiment.The present invention overcomes full-scale experiment is of a high price and the inaccurate disadvantage of numerical simulation, the research that fire plume volume when train fire occurring in subway tunnel inhales a series of basic theories such as feature and flue gas transport behavior can be carried out, there is actual directive significance to fire detection, flue gas control and the evacuating personnel under the fire scenario.
Description
Technical field
The present invention relates to technical field of fire hazard safety, and in particular to a kind of reduced scale cun subway tunnel/compartment is double long and narrow
Space fire test platform.
Background technique
With the continuous propulsion of Urbanization Process In China, size of urban population constantly increases, and incident is serious
Road traffic congestion.And subway is due to having the characteristics that passenger traffic amount is big, runing space mainly in underground, for alleviating increasingly
Nervous urban pavement traffic pressure has great importance.However, subway while bringing convenience to people's lives, is also given
Fire prevention and treatment brings new challenge.Statistical result shows that in fire 85% personnel death is due to human body toxicity on inhalation
Caused by gas, and the high-temperature flue gas gathered may cause damaged even collapsing etc. secondary disasters of tunnel structure.
Although subway train occurs to want after fire in running tunnel Reduced Speed Now to next according to the requirement of related specifications
Then a station carries out relevant evacuating personnel escape and rescue work.But in a practical situation, part subway train
It can run out of steam and be rested in running tunnel after kindling, next station can not be driven to, train at this time is in tunnel space
The barrier with larger blockage ratio is inside formd, together constitutes a kind of special double long and narrow spaces with tunnel.Therefore, it studies
The fire plume volume in the double long and narrow spaces of subway tunnel/compartment under various boundary inhales feature and flue gas transport behavior tool
It is significant.
Since full-scale fire test needs to expend a large amount of manpower and financial resources, experiment condition is difficult to control, it is difficult to be obtained
A large amount of and reliable experimental data.On the contrary, carrying out the contracting scale experiment for meeting similarity theory at low cost, repeatable
By force, the high advantage of result credibility.Therefore, contracting scale experiment is widely used in fire research.
Domestic scholars have carried out numerous studies for subway tunnel at present, open and equality devises a kind of small size
Multi-functional subway tunnel experiment porch controls to study the burning behavior of fire and flue gas under different tunnel types and structure,
Chen Xiao etc. devises a kind of subway tunnel experiment porch using non-straight axis jet blower mechanical smoke extraction to non-straight axis
The smoke discharging effect of jet blower is studied.However, existing reduced scale cun subway tunnel experiment porch in structure and
Functionally all there is certain limitation, in which: in structure, the cross section of experiment porch is mostly rectangular configuration, and actual
Subway tunnel is mostly arcuate structure, and the two has biggish difference；Functionally, experiment porch can only simulate in subway tunnel and not have
Have the fire scenario of train, can not simulate compartment there is a situation where when fire because power failure rests in tunnel.
Summary of the invention
The purpose of the present invention is to solve existing reduced scale cun subway tunnel experiment porch structures and lacking functionally
It falls into, provides a kind of double long and narrow space fire test platforms of very little subway tunnel/compartment of reduced scale to solve the above problems.
To achieve the goals above, technical scheme is as follows:
A kind of double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment, including tunnel unit, train list
Member, track element, fire source analogue unit, longitudinal ventilation unit and fire parameter measuring unit；Wherein:
The experiment porch is contracting dimension model, and the likelihood ratio with actual size is 1:3；
The tunnel unit is seated ground, is spliced by the identical sub- tunnel of more piece, including tunnel frame, arched top
The vertical hinged door of canopy, two sides side wall and side；
The train unit is placed in tunnel unit, is spliced by the identical sub- compartment of more piece, including train frame,
Bracket, ceiling, bottom plate, both ends and the side wall of two sides, side sliding window；
The track element includes metal guide rail, metal hanging ring and electromotive electric traction machine, and metal guide rail is placed on tunnel list
On the longitudinal centre line of member；
The fire source analogue unit is placed in train unit, including normal heptane oil sump fire source and propane gas fire source；
The longitudinal ventilation unit is placed on tunnel unit one end, including frequency conversion fan and connection frequency conversion fan and tunnel
The rectification section of unit；
The fire parameter measuring unit include Research on Automatic Measuring System of Temperature, wind speed test macro, flue gas flow field monitoring system, with
And image recording system.
Wherein, flanged joint is used between each knot tunnel, tunnel frame is built by the bending plate at angle steel and top；
Arc ceiling and side side wall are made of fire-proof plate, and wherein the fire-proof plate of ceiling is flexible plates, and the fire-proof plate of side wall is plate；
Other side side wall and vertical hinged door are made of tempered glass, and personnel is facilitated to test observation experiment in front and back arrangement experiment and experimentation
Phenomenon.
Wherein, flanged joint is used between each knot compartment, train frame is built using steel angle structure, and bracket uses
Rhs-structure is built, and bottom is easy to remove equipped with pulley；Ceiling, bottom plate, both ends and side side wall are made of fire-proof plate, fire prevention
Plate is plate；Other side side wall and sliding window are made of tempered glass, other than facilitating observation experiment phenomenon, can also be studied not
With the fire scenario under train vehicle door status.
Wherein, the metal hanging ring in the track element is fixed on train both ends, by electromotive electric traction machine by wirerope with
The connection of metal hanging ring is moved to control train in metal guide rail.
Wherein, the fire source type in the fire source analogue unit can be selected according to requirement of experiment normal heptane oil sump fire source or
Propane gas fire source；Normal heptane oil sump fire source is made of rectangular oil sump, " I " fonts metal tray and electronic balance；Propane flammable gas
Body fire source is made of foraminous gas burner, spinner flowmeter, propane cylinder and air supply pipe.
Wherein, the rectification section in the longitudinal ventilation unit successively includes rectifying tube, damping screen and bee according to air supply direction
Socket rectifier, the combination can adjust the normal direction and tangential velocity of air-flow simultaneously, greatly improve the uniformity in flow field, ensure
The accuracy of experiment.
Wherein, the Research on Automatic Measuring System of Temperature in the fire parameter measuring unit includes thermocouple and data acquisition module, heat
Galvanic couple be arranged on the longitudinal centre line under tunnel unit and train unit ceiling at 2cm and every fan sliding window it is vertical
On center line；Wind speed test macro is multichannel anemometer, is arranged in away from the longitudinal direction at tunnel unit air inlet 3m, ground 0.5m
On center line；It is laser light sheet that flow field, which monitors system, is arranged in air outlet one end of tunnel unit；Image recording system is number
Code camera, is arranged in the side in tunnel unit tempered glass face.
It is by using beneficial effect caused by prior art scheme: a kind of reduced scale cun subway tunnel of the invention/
The double long and narrow space fire test platforms of compartment, are more in line with reality, function with existing subway tunnel experimental bench structure compared
Can be more complete, it is embodied in:
(1) tunnel ceiling uses and the arcuate structure that is actually consistent.Tunnel cross sectional is the shape of a hoof, and the radian of ceiling is
150 °, size meets the similarity Condition of Equivalent Hydraulic Diameter and height equivlent compared with actual subway tunnel size.Waterpower
Diameter and height are two important parameters that flue-gas temperature distribution is influenced in tunnel fire hazard: hydraulic diameter is bigger, fire and smoke spread mistake
Thermal loss in journey is more；Height is lower, and ceiling is stronger to the restriction effect of fire plume.
(2) size in tunnel is larger, and the likelihood ratio with practical subway tunnel size is 1:3, and personnel is facilitated to enter in tunnel
The arrangement that portion is tested.
(3) in fact, the fire in subway tunnel mostly occurs in compartment.When fire is greater, part of the train meeting
It runs out of steam and rests in tunnel, train at this time forms the barrier with larger blockage ratio in tunnel space, with tunnel
Road together constitutes a kind of double long and narrow spaces.This experiment porch can carry out analog study to the fire under this scene.Except this
Except, train can also be placed on outside tunnel, basic research is carried out to tunnel fire hazard and train fire respectively.
(4) use of metal guide rail and electromotive electric traction machine is convenient for changing the position of train, and train will not be made to deviate tunnel
The center line in road and cause error experimentally.
(5) opening or closing by control train sliding window, can study the fire scenario under different lines vehicle vehicle door status.
Detailed description of the invention
Fig. 1 is a kind of overall structure signal of double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment
Figure.
Fig. 2 is a kind of tunnel of the double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment shown in Fig. 1
Unit.
Fig. 3 is a kind of train of the double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment shown in Fig. 1
Unit.
Fig. 4 is a kind of track of the double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment shown in Fig. 1
Unit.
Fig. 5 is a kind of fire source of the double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment shown in Fig. 1
Analogue unit, wherein Fig. 5 (a) is normal heptane liquid pool fire source, and Fig. 5 (b) is propane gas fire source.
Fig. 6 is a kind of longitudinal direction of the double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment shown in Fig. 1
Ventilation unit.
Specific embodiment
With reference to the accompanying drawing, by embodiment according to the present invention, the present invention will be described in detail.It is clear in order to describe,
The orientation or positional relationship of the instructions such as "upper", "lower", the "left", "right" of introducing is that orientation based on the figure or position are closed
System.
As shown in Figure 1, the double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment include tunnel unit 1,
Train unit 2, track element 3, fire source analogue unit 4, longitudinal ventilation unit 5, fire parameter measuring unit 6.
As shown in Fig. 2, construction cost and facilitate shooting experimental phenomena to save, meeting Equivalent Hydraulic Diameter and equivalent
Approximate processing carried out to the cross-sectional shape of actual tunnel on the basis of height, tunnel is adjusted to that two sides are vertical, ceiling is
The shape of a hoof of 150 ° of circular arcs.
Tunnel unit 1 is stitched together by way of flanged joint by the identical sub- tunnel 7 of more piece, the ruler in sub- tunnel 7
Very little is 3m (length) 1.6m (width) × 1.6m (height), and width and height are the maximum value of cross section, with practical subway tunnel size
The likelihood ratio be 1:3, facilitate personnel to enter tunnel internal arrangement experiment, the total length in tunnel can be adjusted according to requirement of experiment
It is whole.The problem of in view of load-bearing, therefore tunnel is directly seated ground, bottom is not provided with bottom plate, and the gap between ground is used
Fireproof gum is sealed processing.
Tunnel frame is built by the bending plate at angle steel and top, and arc ceiling 8 is made of flexible fire-proof plate, the side at rear
Wall 9 is made of fire prevention plate, and the side wall 10 and vertical hinged door 11 in front are made of tempered glass, and fire-proof plate and tunnel frame seal
Splicing, flame resistant glass sealing are embedded in tunnel frame, and the thickness of fire-proof plate and tempered glass is 10mm.When arrangement experiment, people
The openable fastening lock 12 being mounted on angle steel of member enters tunnel internal to open vertical hinged door 11.
As shown in figure 3, train unit 2 is stitched together by way of flanged joint by the identical sub- compartment 13 of more piece,
The size in sub- compartment 13 is 1.65m (length) × 0.93m (width) × 0.7m (height), and the total length of train can be carried out according to requirement of experiment
Adjustment.
Train frame is built by angle steel, train ceiling 14, bottom plate 15, the side wall 16 of left and right ends and the side wall 17 at rear
It is made of fire prevention plate, the side wall 18 and sliding window 19 in front are made of tempered glass, fire-proof plate and train frame seal
Splicing, flame resistant glass sealing are embedded in tunnel frame, and the thickness of fire-proof plate and tempered glass is 10mm.
Train bracket 20 is built by square tube, high 0.4m, and bottom is equipped with pulley, is moved easily train.It can exist respectively when experiment
Bracket surrounding places fire-proof plate to simulate space occupied by the electrical system of true train bottom.Wherein, left and right ends is anti-
The width of fiery board width and train is consistent, and the fire-proof plate length of front and back side and the length of train are consistent, and is highly
0.4m is bonded and sealed with fireproof gum and train frame.
As shown in figure 4, track element 3 is led by the metal guide rail 21 being arranged on tunnel center line and the electronic of tunnel both ends
Draw the composition of machine 22.The metal hanging ring 23-1 of wirerope and train unit right end on the electromotive electric traction machine 22-1 of tunnel right end connects
It connects, train is controlled by electromotive electric traction machine 22-1 and is moved right.Wirerope on electromotive electric traction machine 22-2 can be by opening tunnel
One fan vertical hinged door 11 of left end introduces tunnel and connect with the metal hanging ring 23-2 of train left end, is controlled by electromotive electric traction machine 22-2
Train is moved to the left.
As shown in figure 4, the normal heptane oil sump fire source in fire source analogue unit 4 is by square metal oil sump 24, " I " fonts gold
Belong to pallet 25, the composition of electronic balance 26, by selecting various sizes of square metal oil sump 24 to realize different fire source powers.Electricity
Sub- balance 26 is placed on ground, and the pedestal of metal tray 25 is placed on electronic balance 26, is screw thread knot inside pedestal sleeve 27
Structure, by drilling on train bottom plate 15 by 28 inserted base sleeve 27 of the pallet of top and matched threaded rod, and by tight
Gu screw 29 carrys out the height of adjusting tray, square-shaped metal oil sump 24 is placed on pallet 25 later, pours into normal heptane, is used a little
Firearm ignites.
Propane gas fire source is by foraminous gas burner 30, spinner flowmeter 31, propane cylinder 32 and 33 groups of air supply pipe
At.Propane cylinder 32 is by air supply pipe 33-1 connection spinner flowmeter 31, then is connected to by another air supply pipe 33-2 porous
Circular hole under 30 bottom of gas burner, foraminous gas burner 30 in the opening of train bottom plate 15 by entering in train.It opens
Gas cylinder valve controls gas flow, propane flammable gas by spinner flowmeter 31 after adjusting pressure reducing valve control gas pressure to stationary value
Body passes through propane cylinder 32, air supply pipe 33-1, spinner flowmeter 31, air supply pipe 33-2 respectively, finally enters porous gas burning
Device 30, uses type of igniter pilot.The supporting structure of foraminous gas burner 30 is similar with metal tray 25, therefore does not repeat to say herein
It is bright.
As shown in figure 5, the air quantity of the frequency conversion fan 34 in longitudinal ventilation unit 5 is 45000m3/ h can satisfy daily reality
Required wind speed requirement is tested, longitudinal ventilation rate can be changed by adjusting frequency size.The cross sectional shape of rectification section 35 with
The horseshoe shaped section of tunnel unit 1 is consistent, and frame is built by square tube, and seals upper and lower, forward and backward four faces with sealing plate.It is whole
It successively include rectifying tube 36, damping screen 37, cellular rectifier 38 according to direction of ventilation inside stream section 35.The length of rectifying tube 36
L1Not less than 1m, it is filled up completely in rectification section section；The quantity of damping screen 37 is no less than three, and mesh number range is -30 mesh of 18 mesh,
Spacing L between damping screen 372Not less than 0.4m；Spacing L between cellular rectifier 38 and damping screen 373With L2It is identical, bee
The width of socket rectifier 38 is 0.2m, and the inscribed circle radius of the rectification through-hole of regular hexagon is 2cm.The combination can be simultaneously
The normal direction and tangential velocity for adjusting air-flow, greatly improve the uniformity in flow field, have ensured the accuracy of experiment.Rectification section 35 and change
Frequency blower 34 is welded together by blower connecting plate 39.
As shown in Figure 1, thermocouple 40 is arranged in the longitudinal center under 2 ceiling of tunnel unit 1 and train unit at 2cm
It on line and in the vertical centerline of every fan sliding window, is fixed, is respectively used under measurement ceiling and out of compartment by thermocouple frame
The flue-gas temperature overflowed.Spacing between thermocouple 40 can be adjusted according to requirement of experiment, and measurement result passes through data
Acquisition module is transferred on computer.The probe of multichannel anemometer 41 is arranged in away from tunnel unit air inlet 3m, ground 0.5m
Longitudinal centre line on, for measuring the vertical wind speed in tunnel.Laser light sheet 42 is placed on the right end of tunnel unit 1, leads to
Cross the green light got, can more clearly from observe the motion profile of flue gas layer, such as the sprawling distance of flue gas layer, rate of propagation and
Sinking speed etc..Digital camera 43 is placed on the front side of tunnel unit 1, for recording the form of experimentation Flame.
Claims (7)
1. a kind of double long and narrow space fire test platforms of reduced scale cun subway tunnel/compartment, it is characterised in that: including tunnel list
Member, train unit, track element, fire source analogue unit, longitudinal ventilation unit and fire parameter measuring unit；Wherein:
The experiment porch is contracting dimension model, and the likelihood ratio with actual size is 1:3；
The tunnel unit (1) is seated ground, is spliced by the identical sub- tunnel of more piece, including tunnel frame, arched top
The vertical hinged door of canopy, two sides side wall and side；
The train unit (2) is placed in tunnel unit (1), is spliced by the identical sub- compartment of more piece, including train frame
Frame, bracket, ceiling, bottom plate, both ends and the side wall of two sides, side sliding window；
The track element (3) includes that metal guide rail, metal hanging ring and electromotive electric traction machine, metal guide rail are placed on tunnel unit
(1) on longitudinal centre line；
The fire source analogue unit (4) is placed in train unit (2), including normal heptane oil sump fire source and propane gas fire source；
The longitudinal ventilation unit (5) is placed on tunnel unit (1) one end, including frequency conversion fan and connection frequency conversion fan and tunnel
The rectification section in road；
The fire parameter measuring unit (6) include Research on Automatic Measuring System of Temperature, wind speed test macro, flue gas flow field monitoring system, with
And image recording system.
2. the double long and narrow space fire test platforms of reduced scale according to claim 1 cun subway tunnel/compartment, feature
Be: being all made of flanged joint between each knot tunnel of the tunnel unit (1), tunnel frame by angle steel and top bending
Plate is built；Arc ceiling is made of with side side wall fire-proof plate, and wherein the fire-proof plate of ceiling is flexible plates, the fire-proof plate of side wall
For plate；Other side side wall and vertical hinged door are made of tempered glass, and personnel is facilitated to test in front and back arrangement experiment and experimentation
Observation experiment phenomenon.
3. the double long and narrow space fire test platforms of reduced scale according to claim 1 cun subway tunnel/compartment, feature
Be: being all made of flanged joint between each knot compartment of the train unit (2), train frame is built by angle steel, bracket by
Square tube is built, and frame bottom is easy to remove equipped with pulley；Ceiling, bottom plate, both ends and the side wall of side are made of fire-proof plate, are prevented
Fiery plate is plate；Other side side wall and sliding window are made of tempered glass, other than facilitating observation experiment phenomenon, can also be studied
Fire scenario under different train vehicle door status.
4. the double long and narrow space fire test platforms of reduced scale according to claim 1 cun subway tunnel/compartment, feature
Be: the metal hanging ring in the track element (3) is fixed on train both ends, is hung by electromotive electric traction machine by wirerope and metal
Ring connection is moved to control train in metal guide rail.
5. the double long and narrow space fire test platforms of reduced scale according to claim 1 cun subway tunnel/compartment, feature
Be: the fire source type in the fire source analogue unit (4) can select normal heptane oil sump fire source or propane according to requirement of experiment
Gas fire source；Normal heptane oil sump fire source is made of rectangular oil sump, " I " fonts metal tray and electronic balance；Propane gas fire
Source is made of foraminous gas burner, spinner flowmeter, propane cylinder and air supply pipe.
6. the double long and narrow space fire test platforms of reduced scale according to claim 1 cun subway tunnel/compartment, feature
Be: rectification section in the longitudinal ventilation unit (5) successively includes that rectifying tube, damping screen and honeycomb fashion are whole according to air supply direction
Device is flowed, which can adjust the normal direction and tangential velocity of air-flow simultaneously, greatly improve the uniformity in flow field, ensure experiment
Accuracy.
7. the double long and narrow space fire test platforms of reduced scale according to claim 1 cun subway tunnel/compartment, feature
Be: the Research on Automatic Measuring System of Temperature in the fire parameter measuring unit (6) includes thermocouple and data acquisition module, thermocouple point
Be not arranged on the longitudinal centre line under tunnel unit (1) and train unit (2) ceiling at 2cm and every fan sliding window it is vertical
On center line；Wind speed test macro is multichannel anemometer, is arranged in away from tunnel unit (1) air inlet 3m, ground 0.5m
On longitudinal centre line；It is laser light sheet that flow field, which monitors system, is arranged in air outlet one end of tunnel unit (1)；Image recording
System is digital camera, is arranged in the side in tunnel unit (1) tempered glass face.
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| CN201910484994.1A CN110111635B (en) | 2019-06-05 | 2019-06-05 | Double-long-narrow space fire experiment platform for small-size subway tunnel/train carriage |
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|---|---|---|---|
| CN201910484994.1A CN110111635B (en) | 2019-06-05 | 2019-06-05 | Double-long-narrow space fire experiment platform for small-size subway tunnel/train carriage |
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| CN110111635B CN110111635B (en) | 2024-03-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148348A (en) * | 2019-06-06 | 2019-08-20 | 应急管理部四川消防研究所 | Large size city synthesis fire test reduced scale platform data test macro |
| CN111462606A (en) * | 2020-04-21 | 2020-07-28 | 合肥工业大学 | Traffic tunnel group smoke cross flow research and emergency rescue system |
| 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 |
| CN116052501A (en) * | 2023-02-27 | 2023-05-02 | 中国科学技术大学 | High-speed subway train carriage and train bottom fire simulation system and control method thereof |
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| CN111462606B (en) * | 2020-04-21 | 2022-04-26 | 合肥工业大学 | Traffic tunnel group smoke cross flow research and emergency rescue system |
| 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 |
| CN116052501A (en) * | 2023-02-27 | 2023-05-02 | 中国科学技术大学 | High-speed subway train carriage and train bottom fire simulation system and control method thereof |
| CN116052501B (en) * | 2023-02-27 | 2024-05-07 | 中国科学技术大学 | High-speed subway train carriage and train bottom fire simulation system and control method thereof |
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