CN208460297U - A kind of liftable change Sloping Tunnels fire disaster simulation device - Google Patents

A kind of liftable change Sloping Tunnels fire disaster simulation device Download PDF

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Publication number
CN208460297U
CN208460297U CN201820166598.5U CN201820166598U CN208460297U CN 208460297 U CN208460297 U CN 208460297U CN 201820166598 U CN201820166598 U CN 201820166598U CN 208460297 U CN208460297 U CN 208460297U
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China
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tunnel
frame
liftable
simulation device
combustion
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Expired - Fee Related
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CN201820166598.5U
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Chinese (zh)
Inventor
李海航
马隽湫
于年灏
陈屹东
陈沛然
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Hangzhou Kaidi Information Technology Co ltd
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China Jiliang University
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Abstract

The utility model provides a kind of liftable change Sloping Tunnels fire disaster simulation device, is mainly made of four parts, including tunnel main body, longitudinal exhausting system, Combustion Source and mating TT&C system.Tunnel main part, including tunnel frame, support frame, flameproof fabric, tempered glass and glass magnesium board wall surface;Tunnel Ventilation System part, including Frequency Adjustable axial flow blower and screens;Combustion tunnel source part, including combustion boat and tripod;The mating TT&C system part in tunnel, including electronic balance, anemobiagraph, laser emitter, thermocouple and video camera.Simulator experiment consumption is less, and repeatability is strong, can be with the variation of temperature and wind speed in the case of complete detection different gradient and lifting.

Description

A kind of liftable change Sloping Tunnels fire disaster simulation device
Technical field
The utility model relates to a kind of simulators, for simulating tunnel fire hazard and observing the variation of temperature and cigarette in tunnel The flowing of gas, specially a kind of liftable change Sloping Tunnels fire disaster simulation device.
Background technique
With going deep into for reform and opening-up, the frequent exchange between city increases the construction demand for vcehicular tunnel, greatly City also accelerates the construction for the subway for facilitating the people to go on a journey.However, increasing with tunnel construction, tunnel safety accident also exists Gradually increase.Due to the features such as tunnel distance is long, ventilation condition is poor, fire be easy to cause extensive casualties and tight after occurring The economic loss of weight.In order to facilitate personnel escape, injures and deaths are reduced, the mode of longitudinal ventilation is generally used to multiply in tunnel to deviate from Flue gas is discharged in the direction of visitor's evacuation.
Subway is that people's daily trip uses the more and more frequent vehicles, tunnel meeting when operating in construction for convenience There is certain gradient.According to China's metro design code, " ruling grade of main track preferably uses 30 ‰, difficult location ruling grade It can be used 35 ‰.In the extreme terrain area of Mountainous City, through technology and economy comparison, when being well grounded, ruling grade can be adopted With 40 ‰ ".Fig. 1 is Typical Urban subway line main line figure, it can be seen that each section of route of subway is in the majority to tilt, and each section of route Gradient consecutive variations, have rise have drop.
Close with what is linked up between city, in order to meet the needs of different regions construction, the gradient in tunnel can suitably increase Add, or even heavy grade tunnel occur, for example Changsha South Lake road Xiang River tunnel, ruling grade have reached 6%.The gradient is for tunnel The influence that critical wind velocity generates, will affect the escape of personnel.
For these reasons, a kind of changeable tunnel lifting will be arranged in the utility model and the simulator of the gradient probes into slope Spend the movement of the critical wind velocity and flue gas when tunnel fire hazard occurs.
Summary of the invention
Full-scale tunnel fire hazard experiment is to probe into that fire is most direct and accurate means, but exists and is difficult to control, investment It is larger, repeatability difference the disadvantages of.Small size tunnel experiment platform provided by the utility model can effectively overcome above-mentioned be stranded Difficulty can be tested in laboratory.
The technical solution adopted in the utility model is as follows:
Liftable change Sloping Tunnels fire disaster simulation device, including tunnel main body, ventilating system, Combustion Source and mating observing and controlling System,
The tunnel main body includes tunnel frame, support frame and wall surface.
The ventilating system, including Frequency Adjustable axial flow blower and screens, screens are mounted on fan outlet, ventilation System is mounted on tunnel entrance, and it is parallel with tunnel that screens export wind direction.
The Combustion Source includes combustion boat and tripod, and combustion boat enters in tunnel frame from tunnel frame bottom surface.
The mating TT&C system in tunnel includes temperature measurement system, anemobiagraph, laser emitter, video camera and electronics day It is flat;Temperature measurement system is two sets of thermocouple groups, wherein the thermocouple of a set of thermocouple group is evenly distributed positioned at tunnel frame top Portion's bottom center;The thermocouple longitudinal arrangement of another set of thermocouple group is above combustion boat;Anemobiagraph is mounted at tunnel entrance With the centre in exit section;Laser emitter is mounted on the exit bottom surface center in tunnel, and laser emitter is towards tunnel frame Frame internal emission laser;Video camera shares two, records flame combustion and flow of flue gas situation respectively;Electronic balance is placed on three Under foot prop, record quality of fuel loss.
Preferably, the tunnel frame is cast with reinforcing bar, is uniformly divided into several segments, every section of tunnel frame is by support frame Support, the lifting situation and the gradient before and after the changeable tunnel of connection by changing support frame and tunnel frame, front and back section tunnel Frame is connected by flameproof fabric;The inner side wall surface of tunnel frame, ceiling and baseboard material use with a thickness of 8mm glass magnesium board, outside Wall surface uses tempered glass, and tempered glass bottom end and tunnel frame are hinged, and extensible tempered glass is for lighting fire source and sight Survey fire process.
More preferred, described tunnel frame overall length 8m, wide 40cm, high 40cm;It is divided into two sections of each 4m in front and back, support Frame supports every section of tunnel frame, and makes tunnel frame integrally liftoff 1m;
Preferably, the combustion boat height is 40mm, and bottom surface is the rectangular of the square of two kinds of sizes of 100mm and 80mm Body container, positioned at the tunnel bottom center apart from inlet 1.5m, fuel uses ethyl alcohol and normal heptane;Tripod is by combustion boat support It rises and is higher by tunnel frame bottom surface 20mm.
Preferably, longitudinal thermocouple above the combustion boat has 9, and vertical spacing is 40mm;Under at the top of tunnel frame The horizontal thermoelectric of Fang Zhongyang is 80 even, horizontal space 100mm;Anemobiagraph is mounted at tunnel entrance and exit 0.5m The centre in section, temperature measurement system and anemobiagraph are connect with computer, the variation of monitoring temperature and wind speed;Laser emitter peace Mounted in the exit bottom surface center in tunnel, fire and smoke spread can be effectively observed;Video camera shares two, positioned at the steel of tunnel frame Change glass side, a face combustion boat is for recording flame combustion situation, and one can be rotated, for recording entire tunnel frame Interior flow of flue gas situation.
The advantages of the utility model and good effect are as follows:
(1) for simulator using ethyl alcohol and normal heptane as fuel, burning sufficiently, will not generate toxic gas;
(2) simulator may be implemented to take the photograph the simulation of fire source burning and smoke movement in the case of different gradient and lifting Camera records fire whole process;
(3) perfect monitoring system can be with the variation of complete detection temperature and wind speed;
(4) for the utility model compared to full scale model, experiment consumption is less, and repeatability is strong.
Detailed description of the invention
Fig. 1 is Typical Urban subway line main line figure;
Fig. 2 is the general structure schematic diagram of simulator;
Fig. 3 is the tunnel main body frame schematic diagram of simulator;
Fig. 4 is simulator ventilating system partial schematic diagram;
Fig. 5 is the structural schematic diagram of simulator support frame;
Fig. 6 is the schematic diagram of the achievable lifting situation and gradient situation of simulator;
Fig. 7 is simulator temperature measurement system arrangement schematic diagram;
Figure label: 1-Frequency Adjustable axial flow blower;2-screens;3-tunnel frames;4-support frames;5-combustion boats; 6-electronic balances;7-tripods;8-flameproof fabrics;9-anemobiagraphs;10-laser emitters;11-tunnel bottoms opening; 12-thermocouples;13-pitmans;14-connecting holes;15-tempered glass;16-video cameras.
Specific embodiment
It is described further with reference to the accompanying drawing with specific implementation the utility model.
Liftable change Sloping Tunnels fire test platform mainly includes tunnel main body, longitudinal exhausting system, and Combustion Source is matched Cover TT&C system.
The liftable change Sloping Tunnels fire disaster simulation equipments overall structure of the utility model is as shown in Fig. 2, include Frequency Adjustable Axial flow blower 1, screens 2, tunnel frame 3, support frame 4, combustion boat 5, electronic balance 6, tripod 7, flameproof fabric 8, anemobiagraph 9, laser emitter 10.
In a specific embodiment of the utility model, tunnel main part as shown in Figure 3, the tunnel frame of the present embodiment It is two sections of equal length that frame 3, which is divided to, and tunnel frame 3 is cast with reinforcing bar, and front and back section tunnel is connected by flameproof fabric 8, and combustion boat is logical It crosses tunnel bottom opening 11 and enters tunnel.Two are respectively positioned on video camera 16 and are located at 15 side of tempered glass record fire process.
In a specific embodiment of the utility model, Tunnel Ventilation System part is as shown in figure 4, mainly by Frequency Adjustable Axial flow blower 1 and screens 2 form.Frequency Adjustable axial flow blower generates wind, generates after rectified net rectification and stable is parallel to tunnel The wind in road direction.Capillary structure arranged in parallel can be used in screens, can also be used iron wire push made of screens or other The structure of the stable wind for being parallel to tunnel direction can be generated.
In a specific embodiment of the utility model, by adjusting pitman 13 shown in 4 figure 5 above of support frame in difference The connection of position connecting hole 14 may be implemented Fig. 6 and all go up and down situation.Support frame includes pitman 13 and two parallels The strut of column, strut longitudinal direction are equipped with several connecting holes 14, and pitman can be inserted into two struts and be in mutually level one To in connecting hole, tunnel frame is arranged on pitman, the gradient situation in the corresponding tunnel of different connecting holes 14 and aperture position The case where setting, can adjusting tunnel frame according to the height of pitman realizes that Fig. 6 all goes up and down situation.
As shown in Figure 7, temperature measurement system is two sets of thermocouple groups, wherein a set of thermoelectricity for tunnel temperature measuring system part The thermocouple of even group 12 is evenly distributed positioned at bottom center at the top of tunnel frame;The thermocouple longitudinal arrangement of another set of thermocouple group Above combustion boat;Longitudinal thermocouple above the combustion boat has 9, and vertical spacing is 40mm;Lower section at the top of tunnel frame The horizontal thermoelectric in center is 80 even, horizontal space 100mm.Thermocouple group can record in Temperature Distribution and combustion boat in tunnel The Temperature Distribution of side.
When using this simulator, following working method is taken:
1) gradient needed for adjusting every section of tunnel frame by the height of change pitman 13 on the support frame and lifting situation, Until meeting experiment demand;
2) check whether anemobiagraph 9 and temperature measurement system work normally;
3) tripod 7 is put on electronic balance 5, is put in immediately below tunnel bottom opening 11;
4) tempered glass 15 is unfolded, combustion boat 5 is put in tunnel bottom opening 11, tripod 7 is adjusted and combustion boat 5 is allowed to be higher by Bottom surface 2cm;
5) blower 1 is opened, revolving speed is adjusted and determines ventilation speed in tunnel;
6) electronic balance 6 is returned to zero, fuel is added into combustion boat 5;
7) anemobiagraph 9, laser emitter 10, temperature measurement system and video camera 16 are opened;
8) fuel is lighted with igniter, closes tempered glass, the variation of temperature measurement system monitoring temperature, anemobiagraph monitors wind The variation of speed;Laser emitter is convenient for cameras capture image towards tunnel frame internal emission laser;Video camera shares two, One face combustion boat is used to record the flue gas stream in entire tunnel frame for recording flame combustion situation, another video camera Emotionally condition, electronic balance record quality of fuel loss;
9) stop anemobiagraph 9, laser emitter 10 after burning, the work of temperature measurement system and video camera 16 is protected Deposit data and video.

Claims (8)

1. a kind of liftable change Sloping Tunnels fire disaster simulation device, it is characterised in that including tunnel main body, ventilating system, burning Source and mating TT&C system,
The tunnel main body includes tunnel frame, support frame and wall surface;
The ventilating system, including blower and screens, screens are mounted on fan outlet, and ventilating system integral installation exists Tunnel entrance, it is parallel with tunnel that screens export wind direction;
The Combustion Source includes combustion boat and tripod, and combustion boat enters in tunnel frame from tunnel frame bottom surface;
The mating TT&C system in tunnel includes temperature measurement system, anemobiagraph, laser emitter, video camera and electronic balance; Temperature measurement system is two sets of thermocouple groups, wherein under the thermocouple of a set of thermocouple group is evenly distributed at the top of tunnel frame Fang Zhongyang;The thermocouple longitudinal arrangement of another set of thermocouple group is above combustion boat;Anemobiagraph is mounted at tunnel entrance and goes out The centre in the section Kou Chu;Laser emitter is mounted on the exit bottom surface center in tunnel, and laser emitter is towards in tunnel frame Portion emits laser;Video camera shares two, records flame combustion and flow of flue gas situation respectively;Electronic balance is placed on tripod Under, record quality of fuel loss.
2. liftable change Sloping Tunnels fire disaster simulation device as described in claim 1, which is characterized in that the tunnel frame Frame is uniformly divided into several segments, and every section of tunnel frame is supported by support frame, and front and back section tunnel frame is connected by flameproof fabric;Tunnel The inner side wall surface of frame, ceiling and baseboard material use glass magnesium board, and outer side surface uses tempered glass, tempered glass bottom end and tunnel Road frame articulation.
3. liftable change Sloping Tunnels fire disaster simulation device as claimed in claim 2, which is characterized in that the support frame Including pitman and two struts arranged in parallel, strut longitudinal direction is equipped with several connecting holes, and pitman can be inserted into described two Strut is in mutually level a pair of of connecting hole, and tunnel frame is arranged on pitman.
4. liftable change Sloping Tunnels fire disaster simulation device as claimed in claim 2, which is characterized in that the tunnel frame Frame overall length 8m, wide 40cm, high 40cm;It is divided into two sections of each 4m in front and back, support frame supports every section of tunnel frame, and makes tunnel frame The whole liftoff 1m of frame;The glass magnesium board is with a thickness of 8mm.
5. liftable change Sloping Tunnels fire disaster simulation device as described in claim 1, which is characterized in that the combustion boat Positioned at the tunnel bottom center apart from inlet 1.5m, fuel uses ethyl alcohol and normal heptane;Combustion boat picking-up is higher by by tripod Tunnel frame bottom surface 20mm.
6. liftable change Sloping Tunnels fire disaster simulation device as described in claim 1, which is characterized in that on the combustion boat Longitudinal thermocouple of side has 9, and vertical spacing is 40mm;The horizontal thermoelectric of bottom center is 80 even at the top of tunnel frame, horizontal Spacing is 100mm.
7. liftable change Sloping Tunnels fire disaster simulation device as described in claim 1, which is characterized in that anemobiagraph is mounted on At tunnel entrance and the centre in the exit section 0.5m.
8. liftable change Sloping Tunnels fire disaster simulation device as described in claim 1, which is characterized in that video camera shares two Platform is respectively positioned on the tempered glass side of tunnel frame, wherein a face combustion boat is for recording flame combustion situation, Ling Yitai Video camera can be rotated, for recording the flow of flue gas situation in entire tunnel frame.
CN201820166598.5U 2018-01-31 2018-01-31 A kind of liftable change Sloping Tunnels fire disaster simulation device Expired - Fee Related CN208460297U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108492697A (en) * 2018-01-31 2018-09-04 中国计量大学 A kind of liftable change Sloping Tunnels fire disaster simulation devices and methods therefor
CN110715551A (en) * 2019-09-27 2020-01-21 华电电力科学研究院有限公司 Ventilation device and method for preparing and calcining SCR (Selective catalytic reduction) honeycomb denitration catalyst
CN113405827A (en) * 2021-06-18 2021-09-17 武汉科技大学 Fire smoke discharge test device and measurement system for V-shaped tunnel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108492697A (en) * 2018-01-31 2018-09-04 中国计量大学 A kind of liftable change Sloping Tunnels fire disaster simulation devices and methods therefor
CN110715551A (en) * 2019-09-27 2020-01-21 华电电力科学研究院有限公司 Ventilation device and method for preparing and calcining SCR (Selective catalytic reduction) honeycomb denitration catalyst
CN113405827A (en) * 2021-06-18 2021-09-17 武汉科技大学 Fire smoke discharge test device and measurement system for V-shaped tunnel

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Effective date of registration: 20210220

Address after: 310000 4th floor, building 8, No.260, No.6 street, Hangzhou Economic and Technological Development Zone, Zhejiang Province

Patentee after: Hangzhou Kaidi Information Technology Co.,Ltd.

Address before: 310018 No. 258, Xue Yuan Street, Jianggan Economic Development Zone, Hangzhou, Zhejiang.

Patentee before: China Jiliang University

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190201