CN106228886A - A kind of fire test device based on Urban Underground pipe gallery - Google Patents
A kind of fire test device based on Urban Underground pipe gallery Download PDFInfo
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- CN106228886A CN106228886A CN201610563061.8A CN201610563061A CN106228886A CN 106228886 A CN106228886 A CN 106228886A CN 201610563061 A CN201610563061 A CN 201610563061A CN 106228886 A CN106228886 A CN 106228886A
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- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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Abstract
The invention discloses a kind of fire test device based on Urban Underground pipe gallery, the pipe gallery model of setting is divided into left side piping lane and right side piping lane；The ground of left side piping lane is provided with feedwater piping by support of pipelines；It is respectively arranged with forceful electric power cable and light current cable by insulating carriage in piping lane both sides, left side；At piping lane top, left side, video camera and illuminating lamp are installed；It is provided with gutter in the bottom of described left side piping lane；Piping lane ground, right side is provided with gas pipeline by support of pipelines；At piping lane top, right side, video camera and illuminating lamp are installed；It is provided with gutter in the bottom of right side piping lane；Fire test device includes: transversal ventilation control system, simulation fire source system, fire detecting system, fine water mist fire-extinguishing system and Water spray fire extinguishing system；Energy simcity of the present invention underground pipe gallery fire test, it is thus possible to control underground pipe gallery smoke evacuation and optimization, live wire cable fire spread, detection, fire extinguishing offer science reference significance.
Description
Technical field
The present invention relates to Urban Underground pipe gallery fire safety evaluating field, be specifically related to a kind of Urban Underground pipe gallery fire
Calamity experimental provision.
Background technology
Urban Underground pipe gallery, is i.e. that Urban Underground builds a tunnel space, by electric power, communication, combustion gas, heat supply,
The various utilities pipeline such as plumbing is integrated in one, and is provided with special access hole, hoisting port and monitoring system, implement unified planning,
Uniting, unified construction and management, be important infrastructure and " life line " ensureing city operations.Urban Underground integrated pipe
It has been extremely urgent thing that flue gas control, detection and the fire extinguishing of corridor controls research, studies city by simulation experiment
Fire and smoke spread under fire conditions and control law in city's underground pipe gallery, be used for instructing Urban Underground pipe gallery fire cigarette
Effective selection of gas control, for ensureing that Urban Underground pipe gallery fire safety evaluating has important scientific meaning.
Owing to Urban Underground comprehensive pipe gallery structure is compared to the particularity of conventional tunnel, people are to this particular tunnel space
During breaking out of fire, spreading of flue gas is understood in depth with control law shortage, is badly in need of setting up related experiment platform and launches research, existing
Large scale tunnel fire hazard numbered analog simulation there is certain error, and the Urban Underground building tunneling boring or big cross section is combined
Closing piping lane fire test platform and compare consuming financial resources and cost, experiment boundary condition is also difficult to accurately control simultaneously.Therefore,
Undersized Urban Underground pipe gallery smoke simulation test platform is in the research for Urban Underground pipe gallery fire
Method is particularly important and is widely used.
By to the investigation and analysis of prior art it can be seen that existing conventional tunnel fire test device can not be in structure
Functionally representing Urban Underground pipe gallery, the research to Urban Underground pipe gallery fire combustion test at present seldom relates to
And, also yet there are no relevant special experiment research platform, science personnel also lack relevant understanding to this.If can not rationally visit
Survey, control fire, very large resource waste can be caused.So, need to set up relevant fire smoldering test device, carry out Urban Underground
Pipe gallery combustion test, for instructing the preventing and treating of Urban Underground pipe gallery fire to have very important scientific meaning.
Summary of the invention
In order to solve the problems referred to above, it is provided that a kind of fire test device based on Urban Underground pipe gallery, to energy mould
Intend Urban Underground pipe gallery fire test, it is thus possible to underground pipe gallery smoke evacuation control and optimize, live wire cable fire climing
Prolong, detection, fire extinguishing provide science reference significance.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is:
The feature of a kind of fire test device based on Urban Underground pipe gallery model of the present invention is: arrange described comprehensively
Piping lane model is divided into left side piping lane and right side piping lane；The ground of described left side piping lane is provided with feed pipe by support of pipelines
Road；It is respectively arranged with forceful electric power cable and light current cable by insulating carriage in the both sides of described left side piping lane；In described left side
The top of piping lane is provided with video camera and illuminating lamp；It is provided with gutter in the bottom of described left side piping lane；
The ground of described right side piping lane is provided with gas pipeline by support of pipelines；Top at described right side piping lane
Video camera and illuminating lamp are installed；It is provided with gutter in the bottom of described right side piping lane；
Described fire test device includes: transversal ventilation control system, simulation fire source system, fire detecting system, thin water
Mist fire extinguishing system and Water spray fire extinguishing system；
Described transversal ventilation control system includes: axial flow blower and honeycomb duct, and is arranged on the entrance of described pipe gallery
Place or exit；
Described simulation fire source system includes: the circuit burning things which may cause a fire disaster analog systems of left side piping lane and be arranged on the combustion gas of right side piping lane
Pipeline burning things which may cause a fire disaster analog；
Described circuit burning things which may cause a fire disaster analog systems is to utilize forceful electric power cable and light current cable to form bunch of cables simulation fire source, Yi Jili
The wire fire spread device of variable-current is formed with electrified wire holder device；
Described electrified wire holder device is to change current in wire with power supply, for researching DC electricity and alternating current wire
Fire spread feature, including: bedplate, bracing frame, fixing bakelite plate, mobile bakelite plate, chute, fixing bolt, igniter, connects
Line copper post, jack, the first electrified wire, the second electrified wire, the 3rd electrified wire, the 4th electrified wire and radiant heating panel；
On described bedplate, opposition is provided with bracing frame；On the medial surface of supported on both sides frame, opposition is provided with solid respectively
Determine bakelite plate；It is respectively provided with chute on bracing frame below described fixing bakelite plate；Described chute is provided with mobile electricity
Plank, and fix with described fixing bolt；Described fixing bakelite plate and mobile bakelite plate are respectively arranged with some jacks,
The pair of wiring copper post it is provided with on described some jacks；Wiring copper post on the fixing bakelite plate of both sides is respectively by described
First electrified wire and the second electrified wire are connected；On the mobile bakelite plate of both sides, wiring copper post is respectively by described threeway
Electric lead and the 4th electrified wire are connected；
Described radiant heating panel is arranged on the top of support frame as described above；And simulate different external radiation by radiant heat flux
Under heat effect, electrified wire lights and Spread Characteristics；
Described igniter is made up of power supply and the heating wire being wrapped on electrified wire；
Described gas pipeline burning things which may cause a fire disaster analog is by burning steel cylinder, Pressure gauge, the matter of control fuel flow rate of natural gas
Amount effusion meter and gas pipeline spout are connected in sequence；And be used for simulating Longitudinal Wind effect pipe gallery ceiling hot-fluid and divide
Cloth；And for simulating the spray combustion characteristic of momentum master control jet fire under Longitudinal Wind effect；
Described gas pipeline spout is fixedly mounted on gas pipeline；And controlled described burning steel by described mass flowmenter
The source of the gas size of bottle, forms simulation fire source；
Described fire detecting system includes: the temperature-sensing system of left side piping lane and the gas detection system of right side piping lane；
Described temperature-sensing system includes: linear optical fiber heat detector, temperature signal processor and signal receiving device；
Described linear optical fiber heat detector is arranged on the top of described left side piping lane, and is passed by collected temperature signal
Passing described temperature signal processor, be used for judging whether to reach early warning value, if reaching early warning value, then receiving dress to described signal
Put transmission alarm signal；
Described gas detection system includes gas collecting hole, pump-line, blower fan of bleeding, gas signal processor and signal
Receive device；
Described pump-line is arranged on the top of described right side piping lane, uniformly has collection respectively on described pump-line
Hole；Described gas detection system is that blower fan of bleeding described in utilizing extracts the sky in the piping lane of described right side from described gas collecting hole
Gas also is transferred in described gas signal processor be analyzed processing by described pump-line, it may be judged whether beyond safety threshold
Value, if beyond secure threshold, then sends alarm signal to described signal receiving device；
Described fine water mist fire-extinguishing system includes: water smoke water supply line and sprinkling nozzle, and is arranged on described left side piping lane
Interior forceful electric power cable and the top of light current cable；
Described Water spray fire extinguishing system includes: spray water supply line and Water spray shower nozzle, and is arranged on described right side piping lane
The top of interior gas pipeline.
The feature of fire test device of the present invention lies also in:
The framework of described pipe gallery model uses fireproof transparent material and steel plate to be made, and lays at ground surface simultaneously
There is PLASTIC LAMINATED.
The bedplate of described electrified wire holder device and bracing frame use stainless steel material to be made.
Compared with prior art, beneficial effects of the present invention is embodied in:
1, in terms of experimental model yardstick, the present invention tests according to 1:6 scale Design, is current first and combines for underground
The system such as piping lane smoke evacuation control and optimization, live wire cable fire spread, detection, fire extinguishing control fire of closing carries out studying in all directions
Pilot system.
2, in terms of Fire Ventilation simulation experiment, experimental system of the present invention can truly simulated fire flue gas comprehensive in underground
Process is spread in piping lane.Simultaneously under this kind of underground pipe gallery purging mode, utilize ventilating system that fire cigarette has been effectively ensured
Gas control system.The present invention utilizes technical measures of reasonably discharging fume, and effectively serves the smoke evacuation control in underground pipe gallery, fire
Detection needs with fire extinguishing.
3, in terms of tunnel fire monitoring, the present invention uses line-type heat detector and gas fire detector, and sets
Line construction (including feedwater piping, strong and weak cable and natural gas line) different in putting piping lane；It is thus possible in measurement piping lane just
The Changing Pattern of temperature when reason condition and fire occur and gas componant etc., in research piping lane, different pipelines form fire to fire
In the influence research of fire detector, and different pipeline, condition of a fire condition is controlled in Changing Pattern and the fire extinguishing of fire.
4, arranging aspect at simulation fire source, the present invention uses gas fuel, is provided with special mass flow and pressure
Table, can continuously adjust gas discharge, adds the leakage of piping lane gas pipeline gas and the control of fire size, can distinguish
Fuel gas pipeline leakage and fire under simulation different situations occur.At off-test or energy under the fortuitous events such as the intensity of a fire is out of control occur
Enough close down burning things which may cause a fire disaster timely, it is to avoid the generation of accident；
5, in terms of electrified wire fire spread research, the present invention uses electrified wire holder device can change electrified wire
Relative space position, be used for studying different spaces relative to position electrified wire fire spread feature, it is possible to research different spaces
The electrified wire fire impact on adjacent wire cable under position.Electrified wire holder device can be by changing radiant heating panel
Radiant heat flux, for simulating lighting and Spread Characteristics of electrified wire under different external radiation heat effect.
Therefore, China is improved underground pipe gallery smoke evacuation control mode by this analogue experiment installation, improves underground comprehensive
Piping lane detection and fire fighting and rescue ability have great importance.Ventilation Control under underground pipe gallery fire condition, fire
Calamity detection experimental system, burning things which may cause a fire disaster analog systems, fire control and fire extinguishing system, it is adaptable to underground pipe gallery fire control and going out
Fire experiment.This research can be that underground pipe gallery provides the various fire condition reasonably simulating underground pipe gallery, to combining
Close piping lane fire detecting system to be optimized, propose the most rationally, fire detecting method accurately；For working in ensureing piping lane
In human life's safety and piping lane, various pipelines have reference value.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the present invention；
Fig. 2 a is the left vertical section top view of the present invention；
Fig. 2 b is the right vertical section top view of the present invention；
Fig. 3 is the detection device top view of the present invention；
Fig. 4 is the gas pipeline burning things which may cause a fire disaster analog schematic diagram of the present invention；
Fig. 5 is fire extinguishing and the control fire analog schematic diagram of the present invention；
Fig. 6 a is the water mists analog schematic diagram of the present invention；
Fig. 6 b is the Water spray analog schematic diagram of the present invention；
Fig. 7 is the electrified wire holder device schematic diagram of the present invention；
Fig. 8 is the partial enlarged drawing on the left of Fig. 7；
Fig. 9 is the partial enlarged drawing on the right side of Fig. 7.
Label in figure: piping lane on the left of in the of 1；Piping lane on the right side of in the of 2；3 feedwater pipings；4 light current cables；5 forceful electric power cables；6 gas pipelines；
7 video cameras；8 illuminating lamps；9 Water spray water supply lines；10 water smoke water supply lines；11 waterfog heads；12 Water spray shower nozzles；13 drainings
Ditch；14 insulating carriages；15 supports of pipelines；16 axial flow blowers；17 honeycomb ducts；18 gas collecting holes；19 linear optical fiber temperature-sensitives are visited
Survey device；20 pump-lines；21 bleed blower fan；22 gas signal processors；23 temperature signal processors；24 signal receiving devices；
25 gather computer；26 burning steel cylinders；27 Pressure gauges；28 mass flowmenters；29 gas pipeline spouts；30 electrified wires prop up rack-mounted
Put；31 bedplates；32 bracing frames；32a fixes bakelite plate；32b moves bakelite plate；33 chutes；34 fix bolt；35 igniting dresses
Put；35a heating wire；36 wiring copper posts；37 jacks；38 radiant heating panels.
Detailed description of the invention
In the present embodiment, the pipe gallery that a kind of fire test device based on Urban Underground pipe gallery model is used
Model is model structure, and experimental model manufactures according to the ratio of 1:6, and height is 0.5m, and the area of piping lane section is
0.52m2, the simulation long 10m of piping lane length: and use fireproof transparent material and steel plate to be made, the thickness of framework is 0.05m,
So can clearly observe the fire condition within piping lane and fire control situation；It is equipped with fire prevention at ground surface simultaneously
Plate, PLASTIC LAMINATED thickness is 0.04m, and PLASTIC LAMINATED is for preventing the experimental provision infringement to experimental site；Specifically,
As it is shown in figure 1, arrange pipe gallery model to be divided into left side piping lane 1 and right side piping lane 2, left side piping lane 1 structure width
0.4m, right side piping lane 2 structure width 0.6m.Left and right sides Pipe rack is separated by by the fireproof transparent plate of material that width is 0.04m；
The ground of left side piping lane 1 is provided with feedwater piping 3 by support of pipelines 15；In the both sides of left side piping lane 1 by insulation
Support 14 is respectively arranged with forceful electric power cable 5 and light current cable 4；Video camera 7 and illuminating lamp 8 are installed at the top of left side piping lane 1；
It is provided with gutter 13 in the bottom of left side piping lane 1；Wherein feedwater piping quantity is 1, and pipe diameter is 0.06m, and forceful electric power cable is exhausted
3, edge support, light current cable insulating support 5, on support, number of cables is some, and video camera, illuminating lamp and gutter respectively arrange 1
Individual.
The ground of right side piping lane 2 is provided with gas pipeline 6 by support of pipelines 15；Pacify at the top of right side piping lane 2
Equipped with video camera 7 and illuminating lamp 8；It is provided with gutter 13 in the bottom of right side piping lane 2；Wherein gas pipeline quantity is 2, pipeline
A diameter of 0.1m, video camera, illuminating lamp and gutter respectively arrange 1.
Fire test device includes: transversal ventilation control system, simulation fire source system, fire detecting system, water mists go out
Fire system and Water spray fire extinguishing system；
Fig. 2 a, 2b are the transversal ventilation control systems of fire test device, comprising: axial flow blower 16 and honeycomb duct 17,
And it is arranged on porch or the exit of pipe gallery；Axial flow blower 16 and honeycomb duct 17 form easy wind tunnel system, and it produces
Raw wind circulation is crossed one section that is close to blower fan and is made up of inside honeycomb rectification section arrival piping lane keriotheca structure, forms constant wind
Speed.Wherein axial fan impeller diameter 500mm, rotating speed can reach 1450r/min, and maximum quantity of wind reaches 26000m3/h.
The axial flow blower time opening of transversal ventilation control system, can be used for ventilation under normal circumstances.Work as piping lane
During interior breaking out of fire, need temporary close ventilating system, block the oxygen supply in piping lane, help to control fire condition, keep away simultaneously
Exempt from fire spread.When the fire in piping lane by fire extinguishing system control and extinguishes, and ventilating system then can operate again, quickly gets rid of
Toxic gas etc. in piping lane, and change to fresh air, treating that air quality reaches safety criterion, staff just can enter safely
Enter maintenance.
Simulation fire source system includes: the circuit burning things which may cause a fire disaster analog systems of left side piping lane 1 and be arranged on the Gas Pipe of right side piping lane 2
Road burning things which may cause a fire disaster analog；
Circuit burning things which may cause a fire disaster analog systems is to utilize forceful electric power cable 5 and light current cable 4 to form bunch of cables simulation fire source, simulated fire
During generation, directly burning strong and weak electricity cable, the most really generation of reduction power cable fire, test number the most accurately to obtain
According to.And use the power on wire support device 30, form the wire fire spread device of variable-current, for researching DC electricity and friendship
Stream electric lead fire spread feature.
Fig. 4 is the gas pipeline burning things which may cause a fire disaster analog of simulation fire source system, and it is by the burning steel cylinder 26 of natural gas, pressure
Table 27, the mass flowmenter 28 controlling fuel flow rate and gas pipeline spout 29 are connected in sequence；
Gas pipeline spout 29 is fixedly mounted on gas pipeline 6；And controlled, by mass flowmenter 28, the steel cylinder 26 that burns
Source of the gas size, forms simulation fire source；Natural gas is flowed out by burning steel cylinder 26, through the combustion gas quality effusion meter demarcated in advance
28, enter gas pipeline spout 29.Instant gas discharge can be checked by Pressure gauge 27.When the ejection of gas pipeline spout
Natural gas is not ignited, and can simulate the leakage of gas pipeline.When spraying gas and being ignited, gas leakage can be simulated and draw
The fire sent out.Gas pipeline burning things which may cause a fire disaster analog can be used for simulating Longitudinal Wind effect pipe gallery ceiling heat flux distribution, and can use
The spray combustion characteristic of momentum master control jet fire under simulation Longitudinal Wind effect.
Fig. 3 is the fire detecting system in experimental provision, comprising: the temperature-sensing system of left side piping lane 1 and right side pipe
The gas detection system of corridor 2；
Temperature-sensing system includes: linear optical fiber heat detector 19, temperature signal processor 23 and signal receiving device
24；
Linear optical fiber heat detector 19 is provided with two, is arranged in above the strong and weak cable of piping lane both sides, distance
Piping lane top 0.05m, distance piping lane sidewall 0.1m, fiber lengths is consistent with piping lane length；Linear optical fiber heat detector 19 meeting
Temperature in monitoring piping lane at any time, and collected temperature signal is passed to temperature signal processor 23, it is used for judging whether to reach
To early warning value, if reaching early warning value, then send alarm signal to signal receiving device 24；Heat detector can also be real-time simultaneously
Variations in temperature in monitoring piping lane model, and by signal receiving device record data.
Gas detection system include gas collecting hole 18, pump-line 20, blower fan 21 of bleeding, gas signal processor 22 and
Signal receiving device 24；
Pump-line 20 is arranged on the top of right side piping lane 2, and pump-line 20 length is consistent with piping lane length, at exhaust tube
Collection hole 18 is had the most respectively on road 20；Gas detection system is to utilize to bleed on the right side of blower fan 21 extracts from gas collecting hole 18
Air in piping lane 2 also is transferred in gas signal processor 22 be analyzed processing by pump-line 20, it may be judged whether super
Go out secure threshold, if beyond secure threshold, then sending alarm signal to signal receiving device 24；Signal processor is by analyzing gas
In body, methane and carbon dioxide content judge whether gas leakage or fire, when in gas, methane or carbon dioxide content surpass
Going out secure threshold, signal processor feeds back signal to receive device immediately, opens ventilating system and the operating of fire extinguishing system simultaneously.
Fig. 5 is the fine water mist fire-extinguishing system of experimental provision, comprising: water smoke water supply line 10 and sprinkling nozzle 11, and
It is arranged on forceful electric power cable 5 and the top of light current cable 4 in the piping lane 1 of left side；The a diameter of 0.03m of water smoke water supply line；Water mists goes out
Fire system is supplied water by external water source is unified, is provided with total valve, and when fire occurs, total valve is opened, and to system water supply, goes out
Fire.
Fig. 6 is the Water spray fire extinguishing system of experimental provision, comprising: spray water supply line 9 and Water spray shower nozzle 12, and set
Put in right side piping lane 2 above gas pipeline 6；The a diameter of 0.04m of Water spray water supply line；Water spray fire extinguishing system is by external
Water source is unified to supply water, and is provided with total valve, and when fire occurs, total valve is opened, and to system water supply, puts out a fire.
Fig. 5 is fine water mist fire-extinguishing system and the Water spray fire extinguishing system site plan of experimental provision.Figure includes left side
The water spray extinguishing shower nozzle 11 of piping lane, and the Water spray fire extinguishing sprayer 12 of right side piping lane.It is arranged in the left and right sides of piping lane
Piping lane, the fire extinguishing in piping lane and control fire.The sprinkling nozzle of left side piping lane arranges 4 groups altogether, often 4 sprinkling nozzles of group,
Totally 16.4 groups of sprinkler spacings are 2.5m.Often in group shower nozzle, each two is a small group, is separately mounted to above cable, sprays in group
Head spacing 0.05m, both sides shower nozzle are away from piping lane sidewall 0.05m.The Water spray shower nozzle of right side piping lane arranges 5 groups altogether, often 4 water of group
Spray nozzle.Totally 20.5 groups of sprinkler spacing 2m, often group shower nozzle in every 2 be a small group, sprinkler spacing 0.1m in group, two
Side spray head spacing piping lane sidewall 0.1m.
As shown in Figure 7.Electrified wire holder device 30 is by bedplate 31, bracing frame 32, fixing bakelite plate 32a, movement
Bakelite plate 32b, chute 33, fixing bolt 34, igniter 35, wiring copper post 36, jack 37, electrified wire a, electrified wire b,
Electrified wire c, electrified wire d and radiant heating panel composition.
On bedplate 31, opposition is provided with bracing frame 32；On the medial surface of supported on both sides frame 32, opposition is provided with respectively
Fixing bakelite plate 32a；It is respectively provided with chute 33 on bracing frame 32 below fixing bakelite plate 32a；Chute 33 is provided with
Mobile bakelite plate 32b；Fixing bakelite plate 32a and mobile bakelite plate 32b are respectively arranged with some jacks 37, at some jacks
A butted line copper post 36 it is provided with on 37；Wiring copper post 36 on the fixing bakelite plate 32a of both sides is led by the first energising respectively
Line a and the second electrified wire b is connected；On the mobile bakelite plate 32b of both sides, wiring copper post 36 is respectively by the 3rd electrified wire c
It is connected with the 4th electrified wire d；Radiant heating panel 38 is arranged on the top of bracing frame 32；
Bedplate 31 and the bracing frame 32 of electrified wire holder device use stainless steel material to be made, and bakelite plate is exhausted
Edge material.Electrified wire holder device can be used for simulating different external radiation by changing the radiant heat flux of radiant heating panel
Under intensity effect, electrified wire lights and Spread Characteristics.
As shown in Figure 8, electrified wire holder device can change the locus of electrified wire, is changed logical by jack 37
First electric lead a and the second electrified wire b level interval, and the 3rd electrified wire c and the 4th electrified wire d level interval,
The electrified wire c on mobile bakelite plate and the vertical position of electrified wire d is changed by chute 33, and below mobile bakelite plate
Fix with 2 fixing bolts 34, be used for studying different spatial electrified wire fire spread feature.
As it is shown in figure 9, igniter 35 is made up of power supply and the heating wire 35a being wrapped on electrified wire；Can lead to
Cross wireless switching and remotely control the keying of DC igniter, ignited electric wire cable by heating heating wire.
Above, the only detailed description of the invention of the present invention, but scope is not limited thereto, and can readily occur in
Minor variations and change all within scope.
Claims (3)
1. a fire test device based on Urban Underground pipe gallery model, is characterized in that: arrange described pipe gallery mould
Type is divided into left side piping lane (1) and right side piping lane (2)；The ground in described left side piping lane (1) is arranged by support of pipelines (15)
There is feedwater piping (3)；It is respectively arranged with forceful electric power cable (5) by insulating carriage (14) in the both sides in described left side piping lane (1)
And light current cable (4)；Video camera (7) and illuminating lamp (8) are installed at the top in described left side piping lane (1)；Manage in described left side
The bottom of corridor (1) is provided with gutter (13)；
The ground on described right side piping lane (2) is provided with gas pipeline (6) by support of pipelines (15)；At described right side piping lane
(2) top is provided with video camera (7) and illuminating lamp (8)；It is provided with gutter (13) in the bottom on described right side piping lane (2)；
Described fire test device includes: transversal ventilation control system, simulation fire source system, fire detecting system, water mists go out
Fire system and Water spray fire extinguishing system；
Described transversal ventilation control system includes: axial flow blower (16) and honeycomb duct (17), and is arranged on described pipe gallery
Porch or exit；
Described simulation fire source system includes: the circuit burning things which may cause a fire disaster analog systems of left side piping lane (1) and be arranged on the combustion on right side piping lane (2)
Feed channel burning things which may cause a fire disaster analog；
Described circuit burning things which may cause a fire disaster analog systems is to utilize forceful electric power cable (5) and light current cable (4) to form bunch of cables simulation fire source, and
Use the power on wire support device (30) and form the wire fire spread device of variable-current；
Described electrified wire holder device (30) is to change current in wire with power supply, for researching DC electricity and alternating current wire
Fire spread feature, including: bedplate (31), bracing frame (32), fixing bakelite plate (32a), mobile bakelite plate (32b), chute
(33), fixing bolt (34), igniter (35), wiring copper post (36), jack (37), the first electrified wire (a), the second energising
Wire (b), the 3rd electrified wire (c), the 4th electrified wire (d) and radiant heating panel (38)；
The upper opposition of described bedplate (31) is provided with bracing frame (32)；The medial surface of supported on both sides frame (32) opposes respectively
It is provided with fixing bakelite plate (32a)；The bracing frame (32) of described fixing bakelite plate (32a) lower section is respectively provided with chute
(33)；Described chute (33) is provided with mobile bakelite plate (32b), and fixes with described fixing bolt (34)；Described solid
Determine to be respectively arranged with some jacks (37) on bakelite plate (32a) and mobile bakelite plate (32b), described some jacks (37) set
It is equipped with the pair of wiring copper post (36)；Wiring copper post (36) on the fixing bakelite plate (32a) of both sides is respectively by described the
One electrified wire (a) is connected with the second electrified wire (b)；Upper wiring copper post (36) of the mobile bakelite plate (32b) of both sides is respectively
It is connected with the 4th electrified wire (d) by described 3rd electrified wire (c)；
Described radiant heating panel (38) is arranged on the top of support frame as described above (32)；And simulated outside difference by radiant heat flux
Under photothermy, electrified wire lights and Spread Characteristics；
Described igniter (35) is made up of power supply and the heating wire (35a) being wrapped on electrified wire；
Described gas pipeline burning things which may cause a fire disaster analog is by the burning steel cylinder (26) of natural gas, Pressure gauge (27), controls fuel flow rate
Mass flowmenter (28) and gas pipeline spout (29) be connected in sequence；And be used for simulating Longitudinal Wind effect pipe gallery
Ceiling heat flux distribution；And for simulating the spray combustion characteristic of momentum master control jet fire under Longitudinal Wind effect；
Described gas pipeline spout (29) is fixedly mounted on gas pipeline (6)；And controlled institute by described mass flowmenter (28)
State the source of the gas size of burning steel cylinder (26), form simulation fire source；
Described fire detecting system includes: the temperature-sensing system of left side piping lane (1) and the detection of gas system of right side piping lane (2)
System；
Described temperature-sensing system includes: linear optical fiber heat detector (19), temperature signal processor (23) and signal receive
Device (24)；
Described linear optical fiber heat detector (19) is arranged on the top in described left side piping lane (1), and collected temperature is believed
Number passing to described temperature signal processor (23), being used for judging whether to reach early warning value, if reaching early warning value, then to described letter
Number receive device (24) send alarm signal；
Described gas detection system includes that gas collecting hole (18), pump-line (20), blower fan of bleeding (21), gas signal process
Device (22) and signal receiving device (24)；
Described pump-line (20) is arranged on the top on described right side piping lane (2), upper the most respectively at described pump-line (20)
There is collection hole (18)；Described gas detection system is that blower fan (21) of bleeding described in utilizing extracts from described gas collecting hole (18)
Air in described right side piping lane (2) also is transferred in described gas signal processor (22) enter by described pump-line (20)
Row analyzing and processing, it may be judged whether beyond secure threshold, if beyond secure threshold, then sends report to described signal receiving device (24)
Alert signal；
Described fine water mist fire-extinguishing system includes: water smoke water supply line (10) and sprinkling nozzle (11), and is arranged on described left side
Piping lane (1) interior forceful electric power cable (5) and the top of light current cable (4)；
Described Water spray fire extinguishing system includes: spray water supply line (9) and Water spray shower nozzle (12), and is arranged on described right side pipe
The top of corridor (2) interior gas pipeline (6).
Fire test device the most according to claim 1, is characterized in that, the framework of described pipe gallery model uses fire prevention
Transparent material and steel plate are made, and are equipped with PLASTIC LAMINATED at ground surface simultaneously.
Fire test device the most according to claim 1, is characterized in that, the bedplate of described electrified wire holder device
(31) it is made with bracing frame (32) use stainless steel material.
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| CN111063250A (en) * | 2020-01-20 | 2020-04-24 | 福州大学 | Experimental equipment for simulating full-size underground comprehensive pipe gallery cable fire temperature field |
| CN111983133B (en) * | 2020-08-24 | 2022-05-10 | 常州大学 | Pipe gallery pipeline fire simulation experiment platform and experiment method thereof |
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