CN208546183U - The more gradient running tunnel fire test systems of subway - Google Patents
The more gradient running tunnel fire test systems of subway Download PDFInfo
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- CN208546183U CN208546183U CN201821011792.2U CN201821011792U CN208546183U CN 208546183 U CN208546183 U CN 208546183U CN 201821011792 U CN201821011792 U CN 201821011792U CN 208546183 U CN208546183 U CN 208546183U
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Abstract
The utility model provides a kind of more gradient running tunnel fire test systems of subway, the system comprises: more gradient running tunnel models, smoke controlling device and fire test subsystems；More gradient running tunnel models, including tunnel main body, several train models and several liftable supports, tunnel main body include several tunnel sections, and train model is placed in tunnel main body, and liftable support connects the bottom of tunnel main body, supports tunnel main body；Smoke controlling device is used for the flue gas being discharged in tunnel；Fire test subsystems are used for Control experiment parameter, and obtain test result data, obtain optimal smoke evacuation control parameter.The more gradient running tunnel fire test systems of subway provided by the utility model, by designing the adjustable tunnel section of several gradients, the test parameters such as the different gradient of different tunnel sections are set, and the collected test data of sensor is obtained, effectively demonstrate the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
Description
Technical field
The utility model relates to fire test technical field more particularly to a kind of more gradient running tunnel fire tests of subway
System.
Background technique
Subway has many advantages, such as that convenient, comfortable, transport power is big as the important public transport for facilitating people to go on a journey,
So that subway is greatly developed in more and more big cities in recent years.Due to taking passenger's densely populated place of subway, subway train
Once interior generation fire, consequence will be hardly imaginable, and therefore, scientific design underground fire hazard pilot system carries out scene of fire
Simulation, and then obtain best fire control strategy, it appears it is particularly important.
In the prior art, the longitudinal ventilation mode that subway sectional tunnel generallys use " one send a row " carries out daily operation
Flue gas control under air conditioning and fire scenario；It is at running tunnel both ends that the fume exhausting type of subway sectional tunnel, which mainly uses,
Station setting ventilating shaft, or longer running tunnel middle part increase ventilating shaft.Research for subway tunnel mainly collects
Flue gas Diffusion Law and flue gas Controlling model under middle Yu Shuiping, inclination and congestion condition, flue gas Diffusion Law mainly include expanding
Speed, Temperature Distribution etc. are dissipated, flue gas Controlling model mainly includes that the critical wind velocity of flue gas control wind direction under fire source is predicted mould
Type；The studies above achievement is widely used in the calculating of Metro Tunnel smoke effluent design, for horizontal and single gradient subway tunnel
Feasibility study, design and the guarantee of the fire safety evaluating of operation stage provide Technical Reference.
But subway tunnel pilot system in the prior art is mainly for the tunnel or horizontal tunnel of the single gradient
Road, and in practical application, the gradient of the running tunnel of different cities or same city difference route is different, and what is had is same
The gradient of running tunnel also there are many, Fire Smoke Control effect does not obtain sufficient verification experimental verification, the more gradient section tunnels of subway
Flue gas control effect under road fire scenario is bad.
Utility model content
The purpose of the utility model is to provide a kind of more gradient running tunnel fire test systems of subway, solve existing skill
Subway tunnel pilot system in art can not verify the flue gas control effect under the more gradient running tunnel fire scenarios of subway
The technical issues of.
In order to solve the above-mentioned technical problem, on the one hand, the utility model provides a kind of more gradient running tunnel fire of subway
Pilot system, comprising: more gradient running tunnel models, smoke controlling device and fire test subsystems；
More gradient running tunnel models, including tunnel main body, several train models and several liftable supports,
The tunnel main body includes several tunnel sections, and the train model is placed in the tunnel main body, the liftable branch
Frame connects the bottom of the tunnel main body, supports the tunnel main body；
The smoke controlling device, several ventilating shafts including the tunnel body top is arranged in；
The fire test subsystems, including fire source generator and master controller also include at least and are arranged in the tunnel
Any one of main intracorporal temperature sensor, gas flow transducer, flue gas concentration sensor and visibility sensor, the master control
Device processed respectively with the fire source generator, the temperature sensor, the gas flow transducer, the flue gas concentration sensor, institute
State visibility sensor, the smoke controlling device is connected with more gradient running tunnel models.
Further, the gradient of each tunnel section in the tunnel main body is adjustable.
Further, the ventilation volume of each ventilating shaft of the tunnel body top is set and/or wind direction of divulging information is
It is adjustable.
Further, the fire source generator is arranged on the intracorporal bottom surface of tunnel master, or is arranged in the train
In model.
Further, the fire source generator can move in the tunnel main body, or with the train model
It is mobile.
Further, the size of different train models is adjustable.
Further, the power of the fire source generator is adjustable, and the power includes burning area and/or smoke
Amount.
Further, the temperature sensor, for detecting the temperature in tunnel；
The gas flow transducer, for detecting airflow direction and/or airflow rate in tunnel；
The flue gas concentration sensor, for detecting the flue gas concentration in detection tunnel；
The visibility sensor, for detecting the visibility in tunnel.
Further, the master controller, for controlling position and/or the power of the fire source generator；
For controlling the gradient of each tunnel section in the tunnel main body；
For controlling ventilation volume and/or ventilation wind direction that each ventilating shaft of the tunnel body top is arranged in；
For obtaining the collected data of each sensor.
The more gradient running tunnel fire test systems of subway provided by the utility model, it is adjustable by designing several gradients
The test parameters such as the different gradient of different tunnel sections are arranged in the tunnel section of section, and obtain the collected test number of sensor
According to effectively demonstrating the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
Detailed description of the invention
Fig. 1 is the more gradient running tunnel fire test system structure diagrams of subway according to the utility model embodiment；
Fig. 2 is to illustrate according to the more gradient running tunnel fire test system structures of subway of another embodiment of the utility model
Figure；
Fig. 3 is to illustrate according to the more gradient running tunnel fire test system structures of subway of the utility model another embodiment
Figure；
Fig. 4 is to optimize cloth according to ventilating shaft in the more gradient running tunnel fire test systems of subway of the utility model embodiment
Set structural schematic diagram；
Fig. 5 is according to sensor arrangement in the more gradient running tunnel fire test systems of subway of the utility model embodiment
Structural schematic diagram.
Specific embodiment
It is practical below in conjunction with this in order to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that institute
The embodiment of description is the utility model a part of the embodiment, instead of all the embodiments.Implementation based on the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1 is the more gradient running tunnel fire test system structure diagrams of subway according to the utility model embodiment,
As shown in Figure 1, the utility model embodiment provides a kind of more gradient running tunnel fire test systems of subway, comprising: more gradients
Running tunnel model, smoke controlling device and fire test subsystems；
More gradient running tunnel models, including tunnel main body, several train models and several liftable supports,
The tunnel main body includes several tunnel sections, and the train model is placed in the tunnel main body, the liftable branch
Frame connects the bottom of the tunnel main body, supports the tunnel main body；
The smoke controlling device, several ventilating shafts including the tunnel body top is arranged in；
The fire test subsystems, including fire source generator and master controller also include at least and are arranged in the tunnel
Any one of main intracorporal temperature sensor, gas flow transducer, flue gas concentration sensor and visibility sensor, the master control
Device processed respectively with the fire source generator, the temperature sensor, the gas flow transducer, the flue gas concentration sensor, institute
State visibility sensor, the smoke controlling device is connected with more gradient running tunnel models.
Specifically, as shown in Figure 1, the more gradient running tunnel fire test systems of subway, comprising: more gradient running tunnel moulds
Type, smoke controlling device and fire test subsystems.By the investigation to urban subway sectional tunnel building structure and size,
The more gradient running tunnel models of subway are designed, more gradient running tunnel models include tunnel main body, 105 and of several train models
Several liftable supports 106.Tunnel main body includes several tunnel sections (101,102,103,104), all Close Tunnels
Section tunnel main body in series.Train model 105 is placed in tunnel main body, and the size of train model can be according to different vehicle type
Formula is adjusted, and selects different vehicles in test as needed.Liftable support 106 connects the bottom of tunnel main body, support
Tunnel main body.
Continuously goes up a slope or descending situation shown in Fig. 1 for two gradient running tunnel of subway, that is, tunnel main body includes first
Horizontal tunnel section 101, first tilts tunnel section 102, second and tilts tunnel section 103 and the second horizontal tunnel section 104.
First level tunnel section 101, first tilts tunnel section 102, second and tilts tunnel section 103 and the second horizontal tunnel section
104 tunnel main bodys in series.Each Close Tunnel can be achieved in height by adjusting the liftable support 106 of tunnel lower body part
The tilt angle of section, the inclination angle of the first inclination tunnel section 102 is the inclination angle that α, α > 0, second tilt tunnel section 103 in Fig. 1
For β, β > 0 when train is moved from first level tunnel section 101 to the second horizontal tunnel section 104, needs successive upper two slopes
It spends different tunnels first and tilts tunnel section 102 and the second inclination tunnel section 103.
Smoke controlling device, several ventilating shafts (107,108) including the tunnel body top is arranged in, example in Fig. 1
Property give two ventilating shafts, the first ventilating shaft 107 in first level tunnel section 101 and be located at the second horizontal tunnel area
The second ventilating shaft 108 in section 102 generally selects piston vent in subway tunnel, and running tunnel both ends are arranged in piston vent
Horizontal section simulates piston vent in Practical Project and generally arranges situation neighbouring AT STATION.The quantity of ventilating shaft during test
It can need to be arranged according to test any number of.Reversible axial flow blower is installed in ventilating shaft, can be discharged fume or be sent in tunnel
Pneumatic work, each axial flow blower are equipped with frequency-variable controller, it can be achieved that ventilation volume in running tunnel and/or wind direction of divulging information
It adjusts in real time.
Fire test subsystems (not shown in figure 1), including fire source generator and master controller also include at least setting and exist
Temperature sensor, gas flow transducer, flue gas concentration sensor and visibility sensing in more gradient running tunnel models in tunnel
Any one of device, master controller respectively with fire source generator, temperature sensor, gas flow transducer, flue gas concentration sensor, energy
Degree of opinion sensor, smoke controlling device are connected with more gradient running tunnel models.Fire source generator can be placed in more gradient sections
Tunnel or two sides are turned back any position in tunnel, to simulate different fire scenarios.
Fig. 2 is to illustrate according to the more gradient running tunnel fire test system structures of subway of another embodiment of the utility model
Figure, as shown in Fig. 2, after first going up a slope shown in Fig. 2 for two gradient running tunnel of subway the case where descending, that is, tunnel main body packet
It includes first level tunnel section 101, first and tilts the inclination tunnel section 103 of tunnel section 102, second and the second horizontal tunnel area
Section 104.First level tunnel section 101, first tilts tunnel section 102, second and tilts tunnel section 103 and the second horizontal tunnel
The tunnel main body in series of road section 104.Height by adjusting the liftable support 106 of tunnel lower body part can be achieved each
The tilt angle of tunnel section, the inclination angle of the first inclination tunnel section 102 is that α, α > 0, second tilt tunnel section 103 in Fig. 2
Inclination angle be β, β < 0, train from first level tunnel section 101 to the second horizontal tunnel section 104 move when, process first is inclined
Inclined tunnel section 102 is to go up a slope, and is descending by the second inclination tunnel section 103.
Fig. 3 is to illustrate according to the more gradient running tunnel fire test system structures of subway of the utility model another embodiment
Figure, as shown in figure 3, shown in Fig. 3 to go up a slope after two gradient running tunnel elder generation descending of subway the case where, that is, tunnel main body packet
It includes first level tunnel section 101, first and tilts the inclination tunnel section 103 of tunnel section 102, second and the second horizontal tunnel area
Section 104.First level tunnel section 101, first tilts tunnel section 102, second and tilts tunnel section 103 and the second horizontal tunnel
The tunnel main body in series of road section 104.Height by adjusting the liftable support 106 of tunnel lower body part can be achieved each
The tilt angle of tunnel section, the inclination angle of the first inclination tunnel section 102 is that α, α < 0, second tilt tunnel section 103 in Fig. 3
Inclination angle be β, β > 0, train from first level tunnel section 101 to the second horizontal tunnel section 104 move when, process first is inclined
Inclined tunnel section 102 is descending, is to go up a slope by the second inclination tunnel section 103.
Two ventilating shafts are given to exemplary in Fig. 1, piston vent is generally selected in subway tunnel, and piston vent setting exists
The horizontal section at running tunnel both ends simulates piston vent in Practical Project and generally arranges situation neighbouring AT STATION.Fig. 4 be according to
According to ventilating shaft optimized arrangement structure schematic diagram in the more gradient running tunnel fire test systems of subway of the utility model embodiment, such as
Shown in Fig. 4, the quantity of ventilating shaft can be increased in the longer subway sectional tunnel of length, in addition to being located at first level tunnel section
The first ventilating shaft 107 in 101 and other than the second ventilating shaft 108 in the second horizontal tunnel section 102, tilts tunnel first
Third ventilating shaft 109 is set in section 102, is set in the junction of the first inclination tunnel section 102 and the second inclination tunnel section 103
The 4th ventilating shaft 110 is set, the 5th ventilating shaft 111 is set in the second inclination tunnel section 103.By adjusting piston vent in section tunnel
The quantity and spacing in road, during the test verify different length sectionalized ventilation and multiple ventilating shaft linkage aeration control effects.
Fig. 5 is according to sensor arrangement in the more gradient running tunnel fire test systems of subway of the utility model embodiment
Structural schematic diagram, as shown in figure 5, biosensor assay parameter includes temperature, air-flow, flue gas concentration and visibility etc..Temperature sensing
Device measuring unit includes a series of armoured thermocouples being mounted in the middle part of running tunnel with uniform longitudinal gap, due to each thermoelectricity
Even height is vertically uniformly distributed, and can measure the hot smoke layer temperature of tunnel upper space and the temperature of lower air layer simultaneously
Real-time change situation measures the temperature field during the more gradient running tunnel smoke diffusions of subway with realizing.Gas
Flow sensor measuring unit includes a series of gas flow measurement probes being mounted in the middle part of running tunnel with uniform longitudinal gap, every beam
Gas flow measurement probe can measure top hot fume diffusion velocity simultaneously and lower air layer mends wind wind speed and airflow direction.
Flue gas concentration Sensor Measurement Unit includes that a series of flue gas measurements being mounted in the middle part of running tunnel with uniform longitudinal gap are visited
Head, to measure the flue gas concentration situation of change at different longitudinal position and different height.Test fire source generator mainly uses
Liquid pool fire needs to be placed on using methanol, ethyl alcohol, gasoline and the different fuel of smokes amount, the fire locations such as diesel oil according to experiment
In train model or at tunnel ground, while fuel mass is recorded using balance in real time, to obtain the heat in fire source combustion process
Rate of release.
Based on the more gradient running tunnel fire test systems of the subway, a variety of fire in the more gradient running tunnels of subway can be carried out
The Fire Ventilation of calamity scene, which is discharged fume, to be tested.
The function of this system is described in detail below by specific test method:
1, the test method that flue gas diffusion characteristic is studied under the conditions of gravity-flow ventilation
(1) axial flow blower in piston vent is in close state；
(2) liftable support for adjusting tunnel agent set bottom, is in device each section tunnel section horizontal
State；Fixed temperature, air-flow and flue gas concentration sensor are installed respectively according to the design of fire test subsystems in pilot system to survey
Amount probe；
(3) train mould is placed in using methanol, ethyl alcohol, gasoline and the different fuel of smokes amount, the food trays that will burn such as diesel oil
In the middle part of type；
(4) confirm temperature, air-flow, flue gas concentration and heat radiation data acquisition it is errorless after light fuel；
(5) successively carry out several groups difference fire source power test, obtain piston vent natural draught system under the conditions of molten iron
Flat running tunnel flue gas diffusion velocity, temperature and concentration parameter situation of change；
(6) liftable support for adjusting tunnel agent set bottom, makes experimental rig generally in the inclination of the same gradient
State chooses a certain fire source generator heat release rate, successively carries out the test of the different single gradients of several groups, obtains Piston Action Wind
There are flue gas diffusion velocity, temperature and the concentration parameters when the single gradient to change feelings for subway sectional tunnel under the conditions of well natural draught system
Condition；
(7) liftable support for adjusting tunnel agent set bottom, realize continuous two kinds of gradients shown in FIG. 1 go up a slope or under
The a certain heat release rate of fire source generator is chosen in the combination of multiple section different gradients in the case of slope, successively carries out several groups not
Test under the conditions of same α and β angle combinations, the multiple sections of subway sectional tunnel connect under the conditions of obtaining piston vent natural draught system
Flue gas diffusion velocity, temperature and concentration parameter situation of change when continuous upward slope or descending；
(8) liftable support for adjusting tunnel agent set bottom realizes that " upward slope-descending " structure shown in Fig. 2 is multiple
The a certain heat release rate of fire source generator is chosen in the combination of section different gradient, successively carries out the different α and β angle of several groups
Test under combination condition obtains multiple in subway sectional tunnel " upward slope-descending " structure under the conditions of piston vent natural draught system
Flue gas diffusion velocity, temperature and concentration parameter situation of change when angled section different gradient combines；
(9) liftable support for adjusting tunnel agent set bottom realizes that " descending-upward slope " structure shown in Fig. 3 is multiple
The a certain heat release rate of fire source generator is chosen in the combination of section different gradient, successively carries out the different α and β angle of several groups
Test under combination condition obtains multiple in subway sectional tunnel " descending-upward slope " structure under the conditions of piston vent natural draught system
Flue gas diffusion velocity, temperature and concentration parameter situation of change when angled section different gradient combines；
(10) test data in the step of getting by comparing (5)~(9) is as a result, the analysis more gradient section tunnels of subway
The otherness in road and horizontal and single gradient running tunnel smoke diffusion feature, and establish the more gradient running tunnel column of subway
The prediction model of vehicle smoke diffusion characteristic parameter.
2, the test method under the conditions of piston vent mechanical smoke extraction
(1) according to the design of fire test subsystems in pilot system install respectively fixed temperature, air-flow, flue gas concentration and
Thermal radiation sensor measuring probe；
(2) using the different fuel of smokes amount such as methanol, ethyl alcohol, gasoline and diesel oil, a certain heat release rate is chosen, will be fired
Oil firing disk is placed in the middle part of train model；
(3) according to continuous upward slope shown in FIG. 1 or descending structure, the combination of a certain α and β angle is chosen, tunnel master is adjusted
The liftable support of body device bottom realizes more gradient conditions；
(4) confirm temperature, air-flow and flue gas concentration data acquisition it is errorless after light fuel；
(5) 1 minute on fire when, the axial flow blower in piston vent is opened with certain air quantity, one end is another using air-supply
End is acted using smoke evacuation；
(6) it is analyzed by the measurement result to temperature, air-flow and flue gas concentration in tunnel, under the conditions of determining the ventilation volume
The flue gas adverse current length of fire source upwind；
(7) a series of ventilation volumes are arranged to both ends piston vent, keep step (2) and fire source power and slope in (3)
Degree combination it is constant, obtain under this condition flue gas be in the wind to adverse current length with piston vent ventilation volume changing rule；
(8) several fire source powers are chosen, keeps the gradient combination in step (3) constant, repeats step (4)~(7), obtain
Take the empirical model of piston vent control different capacity train fire adverse current length；
(9) it keeps going up a slope in Fig. 1 or the structure of descending is constant, the combination of several α and β angles is set, for each group
Close, repeat step (2)~(8), obtain the more gradient running tunnels of subway continuously goes up a slope or descending under the conditions of piston vent work wind
Measure the Controlling model to flue gas adverse current length；
(10) liftable support for adjusting tunnel agent set bottom is " upward slope-descending " more gradient structures shown in Fig. 2,
According to the test method in step (2)~(9), multiple angled sections are obtained in subway sectional tunnel " upward slope-descending " structure not
With gradient combination condition lower piston ventilating shaft work air quantity to the Controlling model of flue gas adverse current length；
(11) experimental rig is adjusted to " descending-upward slope " more gradient structures shown in Fig. 3, according in step (2)~(9)
Test method, obtain living under multiple angled section different gradient combination conditions in subway sectional tunnel " descending-upward slope " structure
Ventilating shaft work air quantity is filled in the Controlling model of flue gas adverse current length；
(12) empirical model constructed by combining step (9)~(11) proposes the more gradient running tunnel piston vents of subway
Flue gas Controlling model under ventilation condition.
3, piston vent optimization layout and the test method of fan linkage open mode
(1) according to the design of fire test subsystems in pilot system install respectively fixed temperature, air-flow, flue gas concentration and
Thermal radiation sensor measuring probe；
(2) using the different fuel of smokes amount such as methanol, ethyl alcohol, gasoline and diesel oil, a certain heat release rate is chosen, will be fired
Oil firing disk is placed in the middle part of train model；
(3) according to continuous upward slope shown in FIG. 1 or descending structure, the combination of a certain α and β angle, Adjustment Tests dress are chosen
It sets lower part liftable support and realizes more gradient conditions；
(4) according to piston vent method for arranging in Fig. 4, several piston vents and corresponding are set on test model top
Axial flow blower；
(5) confirm temperature, air-flow and flue gas concentration data acquisition it is errorless after light fuel；
(6) smoke evacuation and air-supply movement are carried out using two piston vents nearest away from train both ends on fire, with reference to naturally logical
Test result under the conditions of wind, using can fully control the flue gas under the conditions of the heat release rate and the gradient in fire source leeward
To air quantity, obtain wind direction smoke transportation Parameters variation situation under the piston vent arrangement fire source；
(7) it increases input the piston vent quantity used, is arranged using several piston vents at train both ends on fire
The total blast volume of cigarette and air-supply movement, smoke evacuation and air-supply respectively with only open two Fans in step (6) and discharged fume and blow
Air quantity is consistent, and obtains piston vent wind direction smoke transportation Parameters variation situation under fire source under the linkage pattern；
(8) change distributed quantity of the piston vent in running tunnel, repeat step (5)~(7), obtain gradient combination
Under the conditions of heat release rate, piston vent all has the linkage mould of preferable control effect to fire source upwind and lower wind direction flue gas
Formula；
(9) it keeps going up a slope in Fig. 1 or the structure of descending is constant, the combination of several α and β angles is set, for each group
Close, repeat step (3)~(8), obtain the more gradient running tunnels of subway continuously go up a slope or descending under the conditions of flue gas control effect compared with
Good piston vent preferred arrangement and linkage work mode；
(10) experimental rig is adjusted to " upward slope-descending " more gradient structures shown in Fig. 2, according in step (2)~(9)
Test method, obtain in subway sectional tunnel " upward slope-descending " structure cigarette under multiple angled section different gradient combination conditions
The preferable piston vent preferred arrangement of gas control effect and linkage work mode；
(11) experimental rig is adjusted to " descending-upward slope " more gradient structures shown in Fig. 3, according in step (2)~(9)
Test method, obtain in subway sectional tunnel " descending-upward slope " structure cigarette under multiple angled section different gradient combination conditions
The preferable piston vent preferred arrangement of gas control effect and linkage work mode；
(12) empirical model constructed by combining step (9)~(11) proposes that the more gradient running tunnels of subway are directed to fire
The piston vent preferred arrangement and linkage work mode and operating parameter of smoke effluent design calculate for such engineering smoke effluent design
Technical Reference is provided.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above embodiments, further, the gradient of each tunnel section in the tunnel main body is
It is adjustable.
Specifically, the gradient of each tunnel section in tunnel main body can be according to test needs, by adjusting liftable branch
The height of frame is adjusted, under the different tunnel section different gradient Parameter Conditions to obtain more gradient running tunnels in tunnel
Properties of fire smoke flow parameter and control effect, and finally obtain the preferable ventilating system open mode of Fire Smoke Control effect
And operating parameter, Technical Reference is provided for the calculating of such engineering smoke effluent design.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the logical of each ventilating shaft of the tunnel body top is set
Wind air quantity and/or ventilation wind direction are adjustable.
Specifically, be arranged in each ventilating shaft of tunnel body top ventilation volume and/or ventilation wind direction can be according to test
It needs to be adjusted, the cigarette under the different ventilation volumes and/or ventilation wind direction Parameter Conditions to obtain different ventilating shafts in tunnel
Air-flow dynamic performance parameters and control effect, and finally obtain the preferable ventilating system open mode of Fire Smoke Control effect and fortune
Row parameter provides Technical Reference for the calculating of such engineering smoke effluent design.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the fire source generator setting is intracorporal in the tunnel master
On bottom surface, or it is arranged in the train model.
Specifically, fire source generator can be set on the intracorporal bottom surface of tunnel master, or is arranged in train model, so as to
The properties of fire smoke flow parameter and control effect under different fire location Parameter Conditions in tunnel are obtained, and finally obtains fire cigarette
The preferable ventilating system open mode of gas control effect and operating parameter provide technology ginseng for the calculating of such engineering smoke effluent design
It examines.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the fire source generator can move in the tunnel main body,
Or it is moved together with the train model.
Specifically, fire source generator can move in tunnel main body, or moved together with train model, to obtain not
With the properties of fire smoke flow parameter and control effect in tunnel under fire location Parameter Conditions, and finally obtain Fire Smoke Control
The preferable ventilating system open mode of effect and operating parameter provide Technical Reference for the calculating of such engineering smoke effluent design.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the size of different train models is adjustable.
Specifically, the size of different train models is different, can need to be adjusted according to test, to obtain different trains
Properties of fire smoke flow parameter and control effect under vehicle Parameter Conditions in tunnel, and finally obtain Fire Smoke Control effect compared with
Good ventilating system open mode and operating parameter provides Technical Reference for the calculating of such engineering smoke effluent design.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the power of the fire source generator is adjustable, the function
Rate includes burning area and/or smoke amount.
Specifically, the power of fire source generator can according to test need be adjusted, the power include burning area and/
Or smoke amount, to obtain the properties of fire smoke flow parameter and control effect under different fire size Parameter Conditions in tunnel, and
The preferable ventilating system open mode of Fire Smoke Control effect and operating parameter are finally obtained, is such engineering smoke effluent design
It calculates and Technical Reference is provided.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the fuel of the fire source generator includes methanol, ethyl alcohol, vapour
Any one of oil and diesel oil.
Specifically, the power of fire source generator can according to test need be adjusted, the power include burning area and/
Or smoke amount, by changing the fuel of fire source generator, the fuel includes any one of methanol, ethyl alcohol, gasoline and diesel oil,
To obtain the properties of fire smoke flow parameter and control effect under different fire size Parameter Conditions in tunnel, and finally obtain fire
The preferable ventilating system open mode of calamity flue gas control effect and operating parameter provide skill for the calculating of such engineering smoke effluent design
Art reference.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the temperature sensor, for detecting the temperature in tunnel；
The gas flow transducer, for detecting airflow direction and/or airflow rate in tunnel；
The flue gas concentration sensor, for detecting the flue gas concentration in detection tunnel；
The visibility sensor, for detecting the visibility in tunnel.
Specifically, temperature sensor, for detecting the temperature in tunnel；Gas flow transducer, for detecting the gas in tunnel
Flow direction and/or airflow rate；Flue gas concentration sensor, for detecting the flue gas concentration in detection tunnel；Visibility sensor,
For detecting the visibility in tunnel.By the way that multiple sensors are arranged, the cigarette under different tests Parameter Conditions in tunnel is obtained
The test datas result such as air-flow dynamic performance parameters and control effect.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
On the basis of the above various embodiments, further, the master controller, for controlling the fire source generator
Position and/or power；
For controlling the gradient of each tunnel section in the tunnel main body；
For controlling ventilation volume and/or ventilation wind direction that each ventilating shaft of the tunnel body top is arranged in；
For obtaining the collected data of each sensor.
Specifically, master controller respectively with fire source generator, temperature sensor, gas flow transducer, flue gas concentration sensor,
Visibility sensor, smoke controlling device are connected with more gradient running tunnel models.For controlling the position of the fire source generator
It sets and/or power；For controlling the gradient of different tunnels section in more gradient running tunnel main bodys；For controlling each ventilating shaft
Ventilation volume and/or ventilation wind direction；For obtaining temperature sensor, gas flow transducer, flue gas concentration sensor, visibility sensing
The collected data of device determine the best smoke evacuation control ginseng under different fire scenarios as test data, and according to test data
Number provides Technical Reference for the calculating of such engineering smoke effluent design.
The more gradient running tunnel fire test systems of subway provided by the embodiment of the utility model, by designing several slopes
Adjustable tunnel section is spent, the test parameters such as the different gradient of different tunnel sections are set, and it is collected to obtain sensor
Test data effectively demonstrates the flue gas control effect under the more gradient running tunnel fire scenarios of subway.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (9)
1. a kind of more gradient running tunnel fire test systems of subway characterized by comprising more gradient running tunnel models,
Smoke controlling device and fire test subsystems；
More gradient running tunnel models, including tunnel main body, several train models and several liftable supports, it is described
Tunnel main body includes several tunnel sections, and the train model is placed in the tunnel main body, and the liftable support connects
The bottom for connecing the tunnel main body supports the tunnel main body；
The smoke controlling device, several ventilating shafts including the tunnel body top is arranged in；
The fire test subsystems, including fire source generator and master controller also include at least and are arranged in the tunnel main body
Any one of interior temperature sensor, gas flow transducer, flue gas concentration sensor and visibility sensor, the master controller
Respectively with the fire source generator, the temperature sensor, the gas flow transducer, the flue gas concentration sensor, the energy
Degree of opinion sensor, the smoke controlling device are connected with more gradient running tunnel models.
2. system according to claim 1, which is characterized in that the gradient of each tunnel section in the tunnel main body is equal
It is adjustable.
3. system according to claim 1, which is characterized in that the logical of each ventilating shaft of the tunnel body top is arranged in
Wind air quantity and/or ventilation wind direction are adjustable.
4. system according to claim 1, which is characterized in that the fire source generator setting is intracorporal in the tunnel master
On bottom surface, or it is arranged in the train model.
5. system according to claim 1, which is characterized in that the fire source generator can move in the tunnel main body
It is dynamic, or moved together with the train model.
6. system according to claim 1, which is characterized in that the size of different train models is adjustable.
7. system according to claim 1, which is characterized in that the power of the fire source generator be it is adjustable, it is described
Power includes burning area and/or smoke amount.
8. system according to claim 1, which is characterized in that the temperature sensor, for detecting the temperature in tunnel；
The gas flow transducer, for detecting airflow direction and/or airflow rate in tunnel；
The flue gas concentration sensor, for detecting the flue gas concentration in detection tunnel；
The visibility sensor, for detecting the visibility in tunnel.
9. system according to claim 1, which is characterized in that the master controller, for controlling the fire source generator
Position and/or power；
For controlling the gradient of each tunnel section in the tunnel main body；
For controlling ventilation volume and/or ventilation wind direction that each ventilating shaft of the tunnel body top is arranged in；
For obtaining the collected data of each sensor.
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| CN201821011792.2U CN208546183U (en) | 2018-06-28 | 2018-06-28 | The more gradient running tunnel fire test systems of subway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756992A (en) * | 2018-06-28 | 2018-11-06 | 清华大学 | The more gradient running tunnel fire test system and methods of subway |
| CN112343642A (en) * | 2020-11-09 | 2021-02-09 | 西南交通大学 | Disaster-prevention ventilation test model for jet fan of emergency rescue station at railway tunnel portal |
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2018
- 2018-06-28 CN CN201821011792.2U patent/CN208546183U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756992A (en) * | 2018-06-28 | 2018-11-06 | 清华大学 | The more gradient running tunnel fire test system and methods of subway |
| CN112343642A (en) * | 2020-11-09 | 2021-02-09 | 西南交通大学 | Disaster-prevention ventilation test model for jet fan of emergency rescue station at railway tunnel portal |
| CN112343642B (en) * | 2020-11-09 | 2022-02-25 | 西南交通大学 | Disaster-prevention ventilation test model for jet fan of emergency rescue station at railway tunnel portal |
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