CN206574374U - A kind of double-hole tunnel multiple movement bodies fire reduced scale cun experimental system with service channel - Google Patents
A kind of double-hole tunnel multiple movement bodies fire reduced scale cun experimental system with service channel Download PDFInfo
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- CN206574374U CN206574374U CN201720038427.XU CN201720038427U CN206574374U CN 206574374 U CN206574374 U CN 206574374U CN 201720038427 U CN201720038427 U CN 201720038427U CN 206574374 U CN206574374 U CN 206574374U
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Abstract
The utility model discloses a kind of double-hole tunnel multiple movement bodies fire reduced scale cun experimental system with service channel, including tunnel main body, it is arranged at the pressure testing system in tunnel main body, Research on Automatic Measuring System of Temperature, flue gas analysis system and Piston Wind Velocity test system, train model and the burner being arranged in train model, the tunnel main body and train model are assemblied to form by multistage reduced scale cun model experiment standard paragraphs, train model headstock and the tailstock are connected with moving active system and train model motion servo system with train model respectively by chain, train model bottom is provided with train motion positions wheel, the train motion positions wheel is located in track.The experimental system is two sets and be arranged in parallel, is connected with each other between two tunnel main body standard paragraphs by service channel.The system adjusts the length in model tunnel by adjusting the quantity of tunnel main body standard paragraphs.This experimental system is two sets be arranged in parallel, it is adaptable to the double hole subways of research or railway tunnel multiple movement bodies fire behavior, flue gas diffusion property and Piston Action Wind rule.
Description
Technical field
The utility model is related to subway tunnel multiple movement bodies fire reduced scale cun experimental system of growing up, more particularly to a kind of band connection
The double-hole tunnel multiple movement bodies fire reduced scale cun experimental system of network passage.
Background technology
In recent years, with the increasingly maturation of the technologies such as China's high ferro subway, in the tunnel scale built and newly come into operation
Increase year by year, according to statistics, tunnel fire hazard frequency is about 2 times/108 car kms, major long tunnel once occurring what fire was caused
Influence and to personnel's tunnel structure safety threat be huge.Subway tunnel is generally using the two-wire design of double holes, subway circulation
Both direction respectively takes a Tunnel, and a plurality of service channel is had between two tunnels, when wherein one subway tunnel hair
Make trouble former, passenger can just be run away in another tunnel in time by service channel.Service channel can be used in tunnel
Maintenance of works, urgent danger prevention and draining.Train occurs often to be in high-speed travel state during fire, when tunnel is longer, occurs
Concrete on fire, train is often travelled rapidly and evacuated to service channel.From the dynamic run at high speed to gradually ramp to stop
Piston Action Wind in process, tunnel can change with the change of train motion state.And Piston Action Wind can drive flue gas in tunnel
Flow direction.Before Train Stopping, the flue gas in tunnel is constantly in the rear of train, after train braking stops, the flue gas of the tailstock
Under the driving of Piston Action Wind, motion is may proceed to, entire train is spread.Moreover, subway tunnel and single hole with service channel are single
Line subway tunnel is different, and the Piston Action Wind wind speed, wind direction in tunnel are also by the subway train running situation shadow in other side tunnel
Ring.In addition, when concrete on fire occurs for side, the flue gas that fire is produced also affects the safe operation in non-fire side tunnel.So,
Double subway tunnel multiple movement bodies fire behaviors with middle service channel are a problems highly studied.
Existing tunnel fire hazard reduced scale cun experimental system is mostly only applicable to study single hole subway or railway tunnel train stops
The only fire behavior research of state, it is impossible to reflect that train, from occurring fire to the dynamic process of ramp to stop, can not be used to grind
Study carefully the influence that opposite side tunnel spreads to flue gas in the tunnel of fire side.This experimental provision generally comprises reduced scale cun tunnel model,
Train model, burner, ventilating system flows grid, temp measuring system, several portions such as wind speed test system and data collecting system
Point.
It can be seen that, current tunnel fire hazard experimental system for simulating can only carry out burning things which may cause a fire disaster stationary combustion source fire simulation experiment, it is impossible to
Fire behavior under simulation fire source motion state.It can be used in movable body fire combustion characteristics and flue gas diffusion in the urgent need to setting up
The experimental system of characteristic.In addition, this experimental system, it is impossible to done more physical exercises for studying double hole subway tunnels with service channel
The fire behavior and properties of fire smoke flow of body.And how by experimental system design modularization, so that in an experimental system
The subway tunnel situation of analog study different length is also a urgent problem to be solved.
Utility model content
In order to solve problems of the prior art, it is many that the utility model provides a kind of double-hole tunnel with service channel
Movable body fire reduced scale cun experimental system, overcome in the prior art experimental system can only to carry out burning things which may cause a fire disaster stationary combustion source fire disaster simulation real
Test, and can not be used for studying the fire behavior and properties of fire smoke flow of double hole subway tunnel multiple movement bodies with service channel
The problem of.
The technical solution adopted in the utility model is：A kind of double-hole tunnel multiple movement bodies fire reduced scale cun with service channel
Experimental system, including two sets of tunnel units be arrangeding in parallel, each tunnel unit include tunnel main body, are arranged in tunnel main body
Pressure testing system, Research on Automatic Measuring System of Temperature, flue gas analysis system and Piston Wind Velocity test system, train model and be arranged at
Burner in train model, the tunnel main body and train model are assemblied to form by multistage reduced scale cun model experiment standard paragraphs,
Train model headstock and the tailstock pass through chain with moving active system and train model motion servo system with train model respectively
Connection, train model bottom is provided with train motion positions wheel, and the train motion positions wheel is located in track.Two tunnel units
Between by service channel be connected with each other.
The tunnel main body includes high temperature resistant tunnel main body standard paragraphs, high temperature resistant flame observation window, driving chain carrying roller branch
Connected between frame, driving chain carrying roller, the standard paragraphs using flange, the tunnel main body connected is placed on tunnel main body rack
On.
The chain strainer before headstock and tailstock chain strainer, the end of chain are respectively arranged with before and after the train model
Head is connected using steel ring with chain strainer.
Burning tank position and burner cover plate, positioned at the headstock of train model, the tailstock and car are provided with the top of train model
Middle position.
The burner includes tray for combustion, and the size of tray for combustion is corresponding with the size of the burning tank position of train model, combustion
Burn in disk and be separated into multiple small lattice.
Train motion positions wheel is welded on the underbody of train model, and train motion positions wheel is located in track, and track is in " C "
Font, defines that train motion positions wheel can only be in rail groove, track is used between modularized design, track using segmentation spelling
The connection of the mode connect, track leading portion and rear end are arranged to the form of " double buckle ", piecewise grafting, rail body and tunnel main body
Between fixed by screw.
The train model motion active system includes speed control motor, toothed disc, the flange being connected with tunnel main body
Disk, speed control motor is connected with toothed disc using shaft coupling, and speed control motor imparts power to gear by shaft coupling
Disk, toothed disc is rotated and drives chain movement again, and chain traction train model is moved according to designated movement rule.
Train model motion servo system includes toothed disc and the ring flange being connected with tunnel main body, servo system,
Active system, chain, train model form a closed loop connection together.
Tunnel high temperature resistant flame observation outside window, is provided with two at most platform high-definition digital video cameras.
The service channel number is one or more, is set according to every 3~5 meters of spacing of tunnel main body.
The beneficial effects of the utility model are：The utility model proposes a kind of new double holes with middle service channel
Iron or railway tunnel multiple movement bodies fire reduced scale cun experimental system.The system is adjusted by adjusting the quantity of tunnel main body standard paragraphs
Save the length in model tunnel.This experimental system is two sets be arranged in parallel, it is adaptable to transported the double hole subways of research or railway tunnel more
Kinetoplast fire behavior, flue gas diffusion property and Piston Action Wind rule.The utility model is the experimental study of multiple movement bodies tunnel fire hazard
Platform is provided, while also being prevented and reduced natural disasters offer solution for subway or railway tunnel, with good social benefit.This
Utility model is prevented and reduced natural disasters significant for research astable operation body fire behavior, subway or railway tunnel.
Brief description of the drawings
Fig. 1 subway tunnel movable body fire test system diagrams；
The assembled schematic diagram of Fig. 2 tunnels main body；
Fig. 3 train models and trajectory diagram；Fig. 3 (a) is the assembled schematic diagram of train model, and Fig. 3 (b) is steady wheel and track phase
To location diagram；Fig. 3 (c) is track top view；
Fig. 4 chains strainer and chain connection diagram；
Fig. 5 models tunnel cross-section and train model sectional drawing；Fig. 5 (a) is sectional drawing at left side tunnel agent method downlink connection；
Fig. 5 (b) is main body sectional drawing in tunnel at service channel；Fig. 5 (c) is right side tunnel main flange junction sectional drawing；
Fig. 6 tray for combustions side view and top view；Fig. 6 (a) is tray for combustion side view, and Fig. 6 (b) is tray for combustion top view；
Fig. 7 trains move active system side view；Fig. 7 (a) is side view of the train motion active system along tunnel direction,
Fig. 7 (b) is side view of the train motion active system perpendicular to tunnel direction；
Fig. 8 trains move servo system side view；Fig. 8 (a) is side of the train motion servo system perpendicular to tunnel direction
View, Fig. 8 (b) is side view of the train motion servo system along tunnel direction；
Fig. 9 high-speed camera position figures；
Wherein：1. tunnel main body；2. pressure testing system；3. Research on Automatic Measuring System of Temperature；4. flue gas analysis system；5. Piston Action Wind
Fast test system；6. train model moves active system；7. train model moves servo system；8. chain；9. train model；
10. driving chain tensioning device；11. train motion positions wheel；12. chain carrying roller；13. burner；14. speed control motor；
15. smoke exhaust fan；16. travel switch；17. tunnel main body rack；18. track；19. service channel；20. high-definition digital is imaged
Machine.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, double hole subway tunnel multiple movement bodies fire test systems include tunnel main body 1, pressure testing system
2nd, Research on Automatic Measuring System of Temperature 3, flue gas analysis system 4, Piston Wind Velocity test system 5, train model motion active system 6, train mould
Type motion servo system 7, chain transmission system 8, train model 9, driving chain tensioning device 10, train locating wheel 11, chain strip holder
Roller 12, burner 13, speed control motor 14, smoke exhaust fan 15, travel switch 16, tunnel main body rack 17, service channel 19.
As shown in Fig. 2 tunnel main body has multistage reduced scale cun model experiment standard paragraphs to be assemblied to form, including high temperature resistant tunnel master
Body standard paragraphs 1-1, high temperature resistant flame observation window 1-2, driving chain roller rack 12-1, driving chain carrying roller 12-2.Standard paragraphs
Between using flange connection, the tunnel main body connected is placed on tunnel main body rack 17.Experimental system is two sets and parallel set
Put, be connected with each other between tunnel main body standard paragraphs by service channel 19.
As shown in figure 3, experiment train model is also connected by the way of standard paragraphs are spliced and combined.Be conducive to studying train chief
Spend the influence to Piston Action Wind, and its influence to flue gas diffusion, fire behavior etc..Train model includes the chain before headstock and tensed
Device 10-1 and tailstock chain strainer 10-2.The termination of chain 8 is connected using steel ring with chain strainer 10-1,10-2, is passed through
Strainer is rotated, it is in tight state gradually to make chain, as shown in Figure 4.Burning tank position 13-1 and burning are provided with the top of train
Device cover plate 13-2.Burner can be placed on position in the headstock of train model, the tailstock and car, it is adaptable to study train different
Flue gas diffusion property during fire occurs for position.Locating wheel 11 is welded on the underbody of train model 9, is set in the middle part of tunnel cross-section
There is positioning wheel track 18.When train model is moved, locating wheel 11 is located in track 18, and track 18 plays the work for limiting train motion
With, it is ensured that train can only move along a straight line.Track 18 is in " C " font, defines that locating wheel 11 can only be in rail groove, so as to ensure
High-speed motion state Train will not topple over.Track 18 is also used between modularized design, track by the way of sectionally smooth join
Connection, track leading portion and rear end are arranged to the form of " double buckle ", piecewise grafting.Rail body 18-1 and tunnel main body 1 it
Between fixed by screw 18-2.
Fig. 5 respectively show tunnel model sectional drawing and train model sectional drawing, and the combustion system of train model includes combustion
Burner groove position 13-1 and burner cover plate 13-2.Chain carrying roller is made up of roller rack 12-1 and carrying roller 12-2.Carrying roller is set
Purpose is to prevent the sagging of chain 8 caused by tunnel is long, prevents chain 8 from producing abrasion with ground friction.
Fig. 6 respectively show tray for combustion side view and top view.The size of tray for combustion and the burning tank position of train model
13-1 size correspondence.During experiment, tray for combustion is positioned in burning tank position 13-1.Meanwhile, it is separated into tray for combustion multiple
Small lattice.Suitable for the movable body fire behavior and flue gas diffusion property of the fire for studying varying strength.
Fig. 7 illustrates the side view that train moves active system.Active system includes speed control motor 14, toothed disc 6-
1st, the ring flange 6-2 that is connected with tunnel main body 1, speed control motor 14 are connected with toothed disc 6-1 using shaft coupling 6-3.Need
Illustrate there is the active system of respective independent operating in double hole subway tunnel models.Speed control motor 14 passes through shaft coupling
6-3 imparts power to toothed disc 6-1, and toothed disc 6-1 is rotated drives chain 8 to move again, the tractor-trailer train model 9 of chain 8 according to
Designated movement rule is moved.Have benefited from the front and rear of train model 9 to be all connected with chain 8, form a closed loop connection.So
Chain 8 both can control train model 9 to accelerate, and the retarding braking of train model 9 can be controlled again.
Fig. 8 illustrate train move servo system side view, servo system include toothed disc 7-1 and with tunnel main body 1
The ring flange 7-2 of connection.It should be noted that there is the servo system of respective independent operating in double hole subway tunnel models.It is driven
System 7, active system 6, chain 8, train model 9 form a closed loop connection together, and whole kinematic system can be realized to train
The acceleration of model, deceleration, at the uniform velocity control.
Fig. 9 illustrates the relative position relation of experimental image acquisition system and tunnel main body 1, from be all between Fig. 9 parts profit
Connected with flange.Camera system digital camera 20 is using the method for piecewise acquisition, the responsible model tunnel mark of every video camera
The IMAQ work of quasi- section, the IMAQ of two adjacent video cameras has the overlapping of small range.Dotted line is represented in figure
It is the image-capture field of every video camera.After IMAQ terminates, using professional software by the image mosaic of each video camera
Into an image entirety.
Data collecting system includes pressure testing system 2, Research on Automatic Measuring System of Temperature 3, flue gas analysis system 4, Piston Wind Velocity and surveyed
Test system 5.It can in real time measure and record the parameters such as the pressure in tunnel, temperature, wind speed and smoke components, concentration.In addition, figure
As acquisition system is arranged in outside tunnel high temperature resistant flame observation window 1-2, including many high-definition digital video cameras, it is responsible for collection motion
The associated picture data of body fire behavior.
The drive system of train model mainly includes active system 6 and the two parts of servo system 7.Pass through chain traction control
The acceleration of train, at the uniform velocity and braking.Train model is provided with locating wheel 11, and locating wheel 11 is placed in track 18, it is ensured that train mould
Do not topple under type high-speed straight-line transport condition.In addition, travel switch 16 is used to control the interval of train motion, train mould is prevented
Type exceeds predetermined moving region, so as to ensure the security of model experiment.It should be noted that in double hole subway tunnel models
There is the drive system of respective independent operating.
The course of work of the present utility model is as follows：
1) high-speed camera (2~3) is placed on the outside of high temperature resistant flame observation window 1-2, video camera apart from observation window about
1.5m, the position of video camera is fixed in whole experiment, then unifies the system time of each video camera before experiment starts
(error is in ± 1s), and it is adjusted in shooting state, shooting process is operated by experimenter.
2) working condition of each test system (2~5) is checked.Log-on data acquisition system, and check that each channel data is adopted
Whether collection is normal.After confirmed no problem, start each data collecting instrument writing function.
3) it is that fuel is weighed, and be injected into the burning of train model according to the weight of fuel specified in hot cigarette Experimental Standardization
In disk.
4) start smoke exhaust fan 15, and according to the test data of speed testing system 5, adjust the rotating speed of smoke exhaust fan 15,
The force ventilation wind speed in tunnel is set to reach the wind speed of experiment setting；Under calm operating mode, smoke exhaust fan 15 should be closed.
5) tray for combustion in train model is lighted using long handle torch.
6) controlled motor 14 in the active system 6 of two tunnel drive systems is respectively started, fire is driven by chain 8
The train model 9 in side tunnel is run with the speed of setting in tunnel.
7) experiment and adjusting parameter experiment are repeated.Said process for experiment complete procedure, after the complete stroke of train operation, profit
Extinguish tray for combustion with tray for combustion cover plate 13-2, and weigh.After experimental system is cooled to original state, prepare lower whorl experiment, weight
Multiple process 1~7.
Although the utility model is described above in conjunction with figure, the utility model is not limited to above-mentioned tool
Body embodiment, above-mentioned embodiment is only schematical, rather than restricted, the ordinary skill people of this area
Member, in the case where not departing from the utility model objective, can also make many variations under enlightenment of the present utility model, these
Belong within protection of the present utility model.
Claims (10)
1. a kind of double-hole tunnel multiple movement bodies fire reduced scale cun experimental system with service channel, it is characterised in that including two sets
The tunnel unit be arrangeding in parallel, each tunnel unit includes tunnel main body (1), is arranged at the pressure test in tunnel main body (1)
System (2), Research on Automatic Measuring System of Temperature (3), flue gas analysis system (4) and Piston Wind Velocity test system (5), train model (9) and
The burner (13) in train model (9) is arranged at, the tunnel main body (1) and train model (9) are by multistage contracting dimension model
Experimental standard section is assemblied to form, and train model (9) headstock and the tailstock with train model with moving active system (6) and train respectively
Model sport servo system (7) is connected by chain (8), and train model (9) bottom is provided with train motion positions wheel (11), described
Train motion positions wheel (11) is located in track (18)；Mutually interconnected by service channel (19) between described two tunnel units
Connect.
2. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 1
It is, the tunnel main body (1) includes high temperature resistant tunnel main body standard paragraphs (1-1), high temperature resistant flame observation window (1-2), transmission
Connected between chain roller rack (12-1), driving chain carrying roller (12-2), the standard paragraphs using flange, the tunnel connected
Main body is placed on tunnel main body rack (17).
3. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 1
It is, the chain strainer (10-1) before headstock and tailstock chain strainer is respectively arranged with before and after the train model (9)
(10-2), the termination of chain (8) is connected using steel ring with chain strainer (10-1,10-2).
4. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 1
It is, burning tank position (13-1) and burner cover plate (13-2) is provided with the top of train model (9), positioned at train model (9)
Headstock, position in the tailstock and car.
5. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 4
It is, the burner (13) includes tray for combustion, the size of tray for combustion and the chi of the burning tank position (13-1) of train model (9)
Multiple small lattice are separated into very little correspondence, tray for combustion.
6. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 1
It is, train motion positions wheel (11) is welded on the underbody of train model (9), train motion positions wheel (11) is located at track (18)
Interior, track (18) is in " C " font, defines that train motion positions wheel (11) can only be in rail groove, track (18) uses module
Change the connection by the way of sectionally smooth join between design, track, track leading portion and rear end are arranged to the form of " double buckle ", by
Section grafting, it is fixed by screw (18-2) between rail body (18-1) and tunnel main body (1).
7. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 1
It is, the train model motion active system (6) includes speed control motor (14), toothed disc (6-1) and tunnel main body
(1) ring flange (6-2) of connection, speed control motor (14) is connected with toothed disc (6-1) using shaft coupling (6-3), speed control
Motor (14) processed imparts power to toothed disc (6-1) by shaft coupling (6-3), and toothed disc (6-1) rotates and drives chain again
(8) move, chain (8) tractor-trailer train model (9) is moved according to designated movement rule.
8. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 1
It is, the train model motion servo system (7) includes toothed disc (7-1) and the ring flange (7- being connected with tunnel main body (1)
2), servo system (7), active system (6), chain (8), train model (9) form a closed loop connection together.
9. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 2
It is, the tunnel high temperature resistant flame observation window (1-2) outside, is provided with two at most platform high-definition digital video cameras.
10. the double-hole tunnel multiple movement bodies fire reduced scale with service channel cun experimental system, its feature according to claim 1
It is, service channel (19) number is one or more, is set according to every 3~5 meters of spacing of tunnel main body.
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| CN201720038427.XU CN206574374U (en) | 2017-01-12 | 2017-01-12 | A kind of double-hole tunnel multiple movement bodies fire reduced scale cun experimental system with service channel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710419A (en) * | 2017-01-12 | 2017-05-24 | 天津大学 | Twin-tube tunnel multiple motion body fire size reduction experiment system with contact passage |
| WO2022179383A1 (en) * | 2021-02-25 | 2022-09-01 | 中国矿业大学 | Multi-dimensional space load and fire test system for tunnel structure, and method for implementing same |
-
2017
- 2017-01-12 CN CN201720038427.XU patent/CN206574374U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710419A (en) * | 2017-01-12 | 2017-05-24 | 天津大学 | Twin-tube tunnel multiple motion body fire size reduction experiment system with contact passage |
| WO2022179383A1 (en) * | 2021-02-25 | 2022-09-01 | 中国矿业大学 | Multi-dimensional space load and fire test system for tunnel structure, and method for implementing same |
| US11650135B2 (en) | 2021-02-25 | 2023-05-16 | China University Of Mining And Technology | Multi-dimensional space load and fire test system for tunnel structure, and method for implementing same |
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