CN115876646B - Gas dangerous chemical leakage fire behavior characteristic simulation experiment device - Google Patents
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Abstract
The invention discloses a gas dangerous chemical leakage fire behavior characteristic simulation experiment device, which comprises an environment simulation system, a plurality of multi-point leakage assemblies and a measurement monitoring system, wherein the environment simulation system is used for simulating the leakage of dangerous chemicals; the environment simulation system comprises a tunnel structure, wherein a variable frequency fan and an environment wind supply assembly are installed in the tunnel structure; the multipoint leakage assembly comprises a rotary chassis, a supporting frame is arranged at the top end of the rotary chassis, a plurality of link blocks are fixedly connected to the supporting frame, single leakage assemblies are arranged on the link blocks, the single leakage assemblies are arranged corresponding to the other ends of the tunnel structures, and a flow field tracing system is communicated with the single leakage assemblies; the environment wind supply assembly, the plurality of single leakage assemblies and the flow field tracing system are arranged corresponding to the measurement monitoring system. The invention simulates the fire behavior and evolution characteristics of gas dangerous chemical leakage more truly, and plays an important role in establishing a fire development prediction model and formulating effective control and reduction methods, personnel evacuation and fire prevention and control plans.
Description
Technical Field
The invention relates to the technical field of fire safety, in particular to a gas dangerous chemical leakage fire behavior characteristic simulation experiment device.
Background
With the continuous perfection of chemical industry systems, the production scale of chemicals and the quantity requirements of storage and transportation equipment are greatly improved, and the chemical industry park has relatively perfect matched industries and compact connection between upstream and downstream industries, so that the production, transportation, storage and environmental cost of the chemicals are greatly reduced due to the aggregation production of various chemicals, and the quantity of the chemical industry park is greatly increased. Meanwhile, a large amount of inflammable, explosive, toxic and other dangerous chemicals exist in the chemical industry park, so that great potential safety hazards are brought to surrounding buildings and personnel. The gas dangerous chemicals in the chemical aggregation areas have fire behaviors under the influence of external environmental wind, so that the gas dangerous chemicals have leakage fire evolution behaviors become very complex. Therefore, the method has important practical significance in developing the research on the evolution of the multipoint leakage fire disaster of the gas dangerous chemicals under the action of the environmental wind.
In an actual fire scene, the environmental wind speed, the wind direction, the environmental wind temperature and humidity, different leakage point shapes, sizes, leakage rates, a leakage source movement mode and the like have important influences on the gas dangerous chemical leakage fire. However, the difficulty of carrying out full-scale real fire experiment on the boundary is high, the experimental process is difficult to control, the risk is high, a large amount of manpower, material resources and financial resources are required to be consumed, and the characteristic parameters in the experimental process are difficult to obtain. In recent years, students at home and abroad assume gas pipeline leakage fire under the action of environmental wind as a complex diffusion combustion process of gas combustible (propane, methane, natural gas and the like) fire (single leakage point is simulated by a combustion device) through a decoupling idea, but different environmental wind directions, environmental wind temperature and humidity, a leakage source movement mode, dynamic evolution of leakage rate along with time and different fuel diffusion combustion multi-fire ignition flame interaction behaviors are less considered. Therefore, a shrinkage size experimental model which is closer to the actual situation is built, and the shrinkage size experimental model is a good choice for researching the multi-point leakage fire evolution rule of the dangerous chemicals in the gas in the chemical aggregation area, so that the fire behavior is effectively predicted and prevented from being enlarged.
Chinese patent CN109682924A discloses a device and a method for testing the leakage ignition of a high-pressure gas pipeline to form injection fire, which can be used for researching the complex dynamic process of the leakage ignition of the high-pressure gas pipeline to form the injection fire under complex conditions (including the shape and the size of a leakage port, the angle of the leakage port, the pipe diameter, the pressure and the flow of a pipeline, the external obstacle of the leakage port, the ambient wind speed, the ambient wind direction, the ambient wind temperature and humidity and the like), but the device does not consider the temperature and the humidity characteristics of the ambient wind, can not complete the simulation of multi-point leakage fire scenes of different fuels, and has obviously different parameters such as flame form, flow field, ambient temperature, radiant heat flux and the like from single leakage source fire scenes under the interaction of a plurality of different fuel and fire source heat release power flames.
Therefore, a device for simulating the fire behavior of gas dangerous chemical leakage is needed to solve the above problems, and by establishing a related fire simulation device, the evolution rule and physical mechanism of single-point/multi-ignition disaster interaction of different gas dangerous chemical leakage states in the scenes of a chemical industry park, an offshore drilling platform and the like under the boundary condition of a complex environment are realized.
Disclosure of Invention
The invention aims to provide a simulation experiment device for the fire behavior characteristics of gas dangerous chemical leakage so as to solve the problems in the prior art.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a gas dangerous chemical leakage fire behavior characteristic simulation experiment device, which comprises an environment simulation system, a plurality of multi-point leakage assemblies and a measurement monitoring system, wherein the environment simulation system is used for simulating the leakage of dangerous chemicals;
the environment simulation system comprises a tunnel structure, wherein a variable frequency fan is installed at one end of the tunnel structure, and an environment wind supply assembly is arranged in the tunnel structure;
the multipoint leakage assembly comprises a rotary chassis, a supporting frame is arranged at the top end of the rotary chassis, a plurality of link blocks are fixedly connected to the supporting frame along the axial direction, single leakage assemblies are arranged on the link blocks, a plurality of single leakage assemblies are arranged corresponding to the other ends of the tunnel structures, and a flow field tracing system is communicated with the single leakage assemblies;
the environmental wind supply assembly, the plurality of single leakage assemblies and the flow field tracing system are arranged corresponding to the measurement monitoring system.
Preferably, the environmental wind supply assembly comprises an array honeycomb-shaped flow stabilizing pipe and a wet temperature regulating system which are fixedly connected in the tunnel structure, the array honeycomb-shaped flow stabilizing pipe is positioned between the variable frequency fan and the wet temperature regulating system, and one side, far away from the variable frequency fan, in the tunnel structure is fixedly connected with a waterproof wind speed measuring system.
Preferably, the single leakage component comprises a cylindrical connecting rod with one end rotatably connected to the side wall of the connecting block, the other end of the cylindrical connecting rod is fixedly connected with a rectifying section, a threaded hole is formed in the side wall of the rectifying section, one end of a combustion device is connected with the threaded hole in a threaded mode, the combustion device is perpendicular to the cylindrical connecting rod, the other end of the combustion device is correspondingly arranged with the tunnel structure, one end of an air inlet pipeline is fixedly communicated to the rectifying section, and the other end of the air inlet pipeline is communicated with the flow field tracing system.
Preferably, the flow field tracing system comprises a metal cylinder and a laser sheet light source, a small fan is installed at the bottom end inside the metal cylinder, a metal net is fixedly connected to the top end inside the metal cylinder, a transparent acrylic cylinder is fixedly connected to the top end of the metal cylinder, trace particles are arranged inside the transparent acrylic cylinder, the laser sheet light source and the trace particles are correspondingly arranged, the middle part of the top end of the transparent acrylic cylinder is fixedly communicated with the other end of the air inlet pipeline, and the metal cylinder is fixedly communicated with a flow control system through a pipeline.
Preferably, the sliding way is arranged at the top end of the rotary chassis, the bottom end of the supporting frame is in sliding connection with the sliding way, a miniature motor is fixedly connected to the linking block, one end of the cylindrical connecting rod penetrates through the linking block and is fixedly connected with an output shaft of the miniature motor, a displacement control system is electrically connected with the miniature motor, and the displacement control system is electrically connected with the rotary chassis.
Preferably, the rotary chassis is provided with a 360-degree rotary dial.
Preferably, the gas dangerous chemical is a combustible gas material, and is one or more than one mixed gas of methane, hydrogen, ethylene, propane, liquefied petroleum gas or acetylene.
Preferably, the tunnel structure is made of four-side light-permeable anti-fog high-temperature-resistant glass.
The invention discloses the following technical effects:
1. in the aspect of simulating the single leakage point gas dangerous chemical leakage diffusion fire evolution behavior, the single leakage component is placed at the outlet position of the tunnel structure, the single leakage component (such as a circular leakage point, a rectangular leakage point, a trapezoid leakage point or a triangular leakage point) is replaced, the size, the leakage angle and the movement mode of the leakage source of different leakage sources are changed, the mass flow rate at the leakage point is controlled through a setting program such as the square development of the heat release power of the fire source with time and the nonlinear evolution of the leakage speed with time at the initial stage of fire development, an environment simulation system is started, the angles of different environment winds and the single leakage component are set through the environment wind supply component, and the typical gas dangerous chemical leakage diffusion fire evolution behavior under different environment wind directions, wind speeds and environment wind temperature and humidity conditions is simulated.
2. In the aspect of simulating the multi-fire point leakage and diffusion fire evolution behavior of the dangerous chemicals in the multi-point leakage gas in the chemical gathering area, corresponding single leakage component characteristics can be designed according to the characteristics of actual scenes such as various fuels in the chemical park, different leakage speeds and the like, the number and the arrangement modes of the single leakage component characteristics are controlled to simulate different combination type leakage points in the actual scenes, a variable-frequency fan is started, and the multi-fire point leakage and diffusion fire evolution behavior of the dangerous chemicals in the multi-point leakage gas in the chemical gathering area under different environmental wind directions, wind speeds and temperature and humidity conditions is simulated by controlling the angles of the environmental wind and the single leakage component.
3. In the aspect of flame flow field measurement, trace particles with good following performance are added into typical gas hazardous chemicals through a flow field tracing system, so that the gas mass flow can be continuously regulated, and the real-time dynamic capture of the characteristic flow fields of various typical gas hazardous chemicals leaking fire flames and smoke is realized.
4. The invention is a set of multifunctional comprehensive fire simulation experiment table with changeable environmental conditions and leakage conditions, the experimental parameters are controllable, the experimental process can be terminated at any time, and the measurement parameters are rich; the experiment table can solve the problems that a large amount of manpower and material resources are required to be coordinated when a full-scale chemical industry gathering area gas dangerous chemical leakage fire experiment is carried out, the economic consumption is high, the conditions are difficult to control, the parameters are difficult to measure, the risk is high, and the like, and can relatively save the cost and obtain the experimental parameters with high accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a multi-point leakage assembly according to the present invention;
FIG. 3 is a schematic diagram of a single leak assembly according to the present invention;
FIG. 4 is a schematic diagram of a flow field tracing system of the invention;
1, a tunnel structure; 2. a variable frequency fan; 3. rotating the chassis; 4. a support frame; 5. a link block; 6. an array honeycomb-shaped steady flow tube; 7. a wet temperature regulation system; 8. a waterproof wind speed measurement system; 9. a cylindrical connecting rod; 10. a rectifying section; 11. a combustion device; 12. an air intake line; 13. a metal cylinder; 14. a small fan; 15. a metal mesh; 16. a transparent acrylic cylinder; 17. a tracer particle; 18. a flow control system; 19. a laser sheet light source; 20. a slideway; 21. a micro motor; 22. a displacement control system; 23. the dial is rotated 360 degrees.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention provides a gas dangerous chemical leakage fire behavior characteristic simulation experiment device, which comprises an environment simulation system, a plurality of multi-point leakage assemblies and a measurement monitoring system, wherein the environment simulation system is used for simulating the leakage of dangerous chemicals;
the environment simulation system comprises a tunnel structure 1, wherein a variable frequency fan 2 is installed at one end of the tunnel structure 1, and an environment wind supply assembly is arranged in the tunnel structure 1;
the multipoint leakage assembly comprises a rotary chassis 3, a supporting frame 4 is arranged at the top end of the rotary chassis 3, a plurality of link blocks 5 are fixedly connected to the supporting frame 4 along the axial direction, single leakage assemblies are arranged on the link blocks 5, the single leakage assemblies are arranged corresponding to the other end of the tunnel structure 1, and a flow field tracing system is communicated with the single leakage assemblies;
the environment wind supply assembly, the plurality of single leakage assemblies and the flow field tracing system are arranged corresponding to the measurement monitoring system.
Further optimizing scheme, environment wind supply assembly includes array honeycomb-shaped steady flow pipe 6 and wet temperature control system 7 of fixed connection in tunnel structure 1, and array honeycomb-shaped steady flow pipe 6 is located between variable frequency fan 2 and wet temperature control system 7, and one side of keeping away from variable frequency fan 2 in the tunnel structure 1 is fixedly connected with waterproof wind speed measurement system 8.
The external environment wind is generated by the variable frequency fan 2, the environment wind speed and the temperature and humidity thereof are adjustable, the environment wind flows through the array honeycomb-shaped steady flow pipe 6 and flows out from the outlet of the tunnel structure 1, the humidity temperature and the temperature of the environment in the tunnel structure 1 are controlled by the wet temperature regulating system 7, the wind speed and the temperature and humidity are calibrated by the high-temperature-resistant waterproof wind speed measuring system 8, and the environment wind with stable wind speed and temperature and humidity is provided for the multi-point leakage assembly.
Further optimizing scheme, the unit is revealed the subassembly and is included that one end rotates the cylindrical connecting rod 9 of connection on linking block 5 lateral wall, the other end fixedly connected with rectification section 10 of cylindrical connecting rod 9, set up threaded hole on the rectification section 10 lateral wall, threaded hole threaded connection has the one end of burner 11, burner 11 sets up perpendicularly with cylindrical connecting rod 9, burner 11 other end corresponds the setting with tunnel structure 1, the fixed one end that communicates with air inlet pipe 12 on the rectification section 10, air inlet pipe 12's the other end and flow field tracing system intercommunication.
The combustion device 11 is detachably connected with the rectifying section 10, so that a plurality of combustion devices 11 with different shapes and sizes can be designed for researching leakage points of gas dangerous chemicals with different sizes and shapes, such as circular, rectangular, trapezoidal, triangular and the like, the corresponding combustion devices 11 are selected for assembly according to experimental requirements, and the size, angle and movement mode of a leakage source of the combustion devices 11 are randomly adjustable, so that the fire evolution behavior of typical gas dangerous chemicals under the conditions of different sizes, angles and movement modes of the combustion devices is realized.
Further optimizing scheme, flow field tracing system includes metal drum 13 and laser piece light source 19, and small-size fan 14 is installed to metal drum 13 inside bottom, and metal drum 13 inside top fixedly connected with metal mesh 15, metal drum 13 top fixedly connected with transparent acrylic drum 16, transparent acrylic drum 16 inside is provided with tracer particle 17, and laser piece light source 19 corresponds the setting with tracer particle 17, and transparent acrylic drum 16 top middle part is fixed intercommunication with the other end of air inlet line 12, and metal drum 13 is through the fixed intercommunication of pipeline has flow control system 18.
The flow control system 18 can realize accurate simulation of the square development of the heat release power of the fire source along with time in the initial stage of fire development through a set program, can realize the nonlinear evolution of the leakage speed along with time in the actual leakage scene through the set program, continuously and adjustably simulate the scene of the fire from the buoyancy main control to the momentum main control jet flow, the tracer particles 17 can be uniformly mixed through the built-in small fan 14, meanwhile, the tracer particles 17 do not interfere with gas diffusion, the light of the flame does not influence the observation of the tracer particles 17, and the environment is not polluted.
Further optimizing scheme, slide 20 has been seted up on rotatory chassis 3 top, and braced frame 4 bottom and slide 20 sliding connection, fixedly connected with micro motor 21 on the link block 5, cylindrical connecting rod 9 one end runs through link block 5 and micro motor 21's output shaft fixed connection, micro motor 21 electric connection has displacement control system 22, displacement control system 22 and rotatory chassis 3 electric connection.
The slide 20 is a cross slide, the support frame 4 can move on the slide 20 to carry out position adjustment, the displacement control system 22 is electrically connected with the micro motor 21 and the rotary chassis 3 through wires, the displacement control system 22 controls the micro motor 21 to rotate so as to drive the rotary chassis 3 to rotate, the combustion device 11 is enabled to rotate in a plane parallel to the ground by 360 degrees, the micro motor 21 is controlled to rotate so as to drive the cylindrical connecting rod 9 to rotate through the displacement control system 22, and meanwhile, the combustion device 11 can be driven to rotate at a constant speed, accelerate to rotate and the like, so that the flame behavior characteristics of the offshore drilling platform torch arm under different movement modes can be studied.
Further optimizing scheme is provided with 360 degrees rotatory calibrated scale 23 on the rotatory chassis 3.
The 360 degree rotation dial 23 facilitates recording of the rotation angle of the rotation chassis 3.
In a further optimized scheme, the gas dangerous chemical is a combustible gas material and is one or more mixed gases of methane, hydrogen, ethylene, propane, liquefied petroleum gas or acetylene.
The gas in each pipeline can be independently arranged, and can be used for researching the fire diffusion combustion behavior characteristics under the leakage interaction of dangerous chemicals of different gases.
According to a further optimization scheme, the tunnel structure 1 is made of four-side light-permeable anti-fog high-temperature-resistant glass.
The four-side light-permeable anti-fog high-temperature-resistant glass is convenient for stably observing all systems inside.
The invention provides a gas dangerous chemical leakage fire behavior feature simulation experiment device, which can be used for establishing a corresponding experiment device based on a fire scene of an offshore drilling platform in the technical background, researching flame behavior evolution of gas dangerous chemical tail gas combustion treatment of the offshore drilling platform under the action of environmental wind, starting a mass flowmeter and a gas bottle to supply gas, simulating torch heat treatment of the offshore drilling platform, starting a variable frequency fan 2 and a humidity temperature regulating system 7, setting a program to regulate the mass flow rate of a flow control system 18, starting a corresponding laser sheet light source 19 to capture the flame flow field and the flame morphology of the offshore drilling platform, changing the angle and the fire source movement mode of a combustion device 11 by controlling a rotating chassis 3 and a cylindrical connecting rod 9 in the experiment, changing the shape and the size of the combustion device 11 and the leakage rate thereof, simulating different fire scenes of the offshore drilling platform, and obtaining a flame behavior dimensionless model under the action of different variable states, and finding out different variable values actually needed to guide practice.
Based on the fire scene in the technical background, a corresponding experimental device can be established, the single-point or multi-point fire situation in a chemical aggregation area under the action of environmental wind is researched, the size and the shape of the leakage points of the single leakage components and the angle adjustment mode of the combustion device 11 in the experiment are the same, each single leakage component changes the time-varying situation of the heat release power of a fire source through the flow control system 18, the actual fire scene can be simulated through the combined assembly of a plurality of single leakage devices, an environmental simulation system is started, the corresponding laser sheet light source 19 is started, and the flow field characteristics of fire flame, the form, the temperature and the radiation distribution and the smoke flow field in different scenes in the chemical aggregation area are measured.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (6)
1. The experimental device for simulating the behavior characteristics of the gas dangerous chemical leakage fire is characterized by comprising an environment simulation system, a plurality of multi-point leakage assemblies and a measurement monitoring system;
the environment simulation system comprises a tunnel structure (1), wherein a variable frequency fan (2) is arranged at one end of the tunnel structure (1), and an environment wind supply assembly is arranged in the tunnel structure (1);
the multi-point leakage assembly comprises a rotary chassis (3), a supporting frame (4) is arranged at the top end of the rotary chassis (3), a plurality of link blocks (5) are fixedly connected to the supporting frame (4) along the axial direction, a single leakage assembly is arranged on each link block (5), a plurality of single leakage assemblies are respectively and correspondingly arranged at the other end of the tunnel structure (1), and a flow field tracing system is communicated with the single leakage assembly;
the environmental wind supply assembly, the single leakage assemblies and the flow field tracing system are arranged corresponding to the measurement monitoring system;
the single leakage assembly comprises a cylindrical connecting rod (9) with one end rotatably connected to the side wall of the connecting block (5), a rectifying section (10) is fixedly connected to the other end of the cylindrical connecting rod (9), a threaded hole is formed in the side wall of the rectifying section (10), one end of a combustion device (11) is connected to the threaded hole in a threaded mode, the combustion device (11) is vertically arranged with the cylindrical connecting rod (9), the other end of the combustion device (11) is correspondingly arranged with the tunnel structure (1), one end of an air inlet pipeline (12) is fixedly communicated with the rectifying section (10), and the other end of the air inlet pipeline (12) is communicated with the flow field tracing system;
the flow field tracing system comprises a metal cylinder (13) and a laser sheet light source (19), a small fan (14) is arranged at the bottom end inside the metal cylinder (13), a metal net (15) is fixedly connected to the top end inside the metal cylinder (13), a transparent acrylic cylinder (16) is fixedly connected to the top end of the metal cylinder (13), trace particles (17) are arranged inside the transparent acrylic cylinder (16), the laser sheet light source (19) and the trace particles (17) are correspondingly arranged, the middle part of the top end of the transparent acrylic cylinder (16) is fixedly communicated with the other end of the air inlet pipeline (12), and a flow control system (18) is fixedly communicated with the metal cylinder (13) through a pipeline.
2. The simulation experiment device for the behavior characteristics of gas dangerous chemical leakage fire disaster according to claim 1, wherein the simulation experiment device is characterized in that: the environment wind supply assembly comprises an array honeycomb-shaped steady flow pipe (6) and a wet temperature regulating system (7) which are fixedly connected in the tunnel structure (1), the array honeycomb-shaped steady flow pipe (6) is positioned between the variable frequency fan (2) and the wet temperature regulating system (7), and one side, far away from the variable frequency fan (2), in the tunnel structure (1) is fixedly connected with a waterproof wind speed measuring system (8).
3. The simulation experiment device for the behavior characteristics of gas dangerous chemical leakage fire disaster according to claim 1, wherein the simulation experiment device is characterized in that: slide (20) have been seted up on rotatory chassis (3) top, braced frame (4) bottom with slide (20) sliding connection, fixedly connected with micro motor (21) on linking block (5), cylindrical connecting rod (9) one end runs through linking block (5) with the output shaft fixed connection of micro motor (21), micro motor (21) electric connection has displacement control system (22), displacement control system (22) with rotatory chassis (3) electric connection.
4. A gas dangerous chemical leakage fire behavior feature simulation experiment device according to claim 3, wherein: the rotary chassis (3) is provided with a 360-degree rotary dial (23).
5. The simulation experiment device for the behavior characteristics of gas dangerous chemical leakage fire disaster according to claim 1, wherein the simulation experiment device is characterized in that: the gas dangerous chemicals are combustible gas materials and are one or more mixed gases of methane, hydrogen, ethylene, propane, liquefied petroleum gas or acetylene.
6. The simulation experiment device for the behavior characteristics of gas dangerous chemical leakage fire disaster according to claim 1, wherein the simulation experiment device is characterized in that: the tunnel structure (1) is made of glass with four sides capable of transmitting light, preventing fog and resisting high temperature.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639398A (en) * | 2009-07-28 | 2010-02-03 | 中国科学技术大学 | Fire smoke flow field tracer method |
| CN110930850A (en) * | 2019-12-24 | 2020-03-27 | 中国科学技术大学 | Experimental device for influence of environmental wind on ship deck limited fire behaviors |
| CN214253632U (en) * | 2020-12-30 | 2021-09-21 | 应急管理部天津消防研究所 | Multi-point source gas diffusion and jet flame combustion comprehensive experiment platform |
| CN113888950A (en) * | 2021-11-08 | 2022-01-04 | 中国科学技术大学 | Village historic building fire induces building group fire simulation experiment device under effect of environmental wind |
| CN115148080A (en) * | 2022-03-21 | 2022-10-04 | 中南大学 | Tunnel fire simulation experiment device under natural rainfall environment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639398A (en) * | 2009-07-28 | 2010-02-03 | 中国科学技术大学 | Fire smoke flow field tracer method |
| CN110930850A (en) * | 2019-12-24 | 2020-03-27 | 中国科学技术大学 | Experimental device for influence of environmental wind on ship deck limited fire behaviors |
| CN214253632U (en) * | 2020-12-30 | 2021-09-21 | 应急管理部天津消防研究所 | Multi-point source gas diffusion and jet flame combustion comprehensive experiment platform |
| CN113888950A (en) * | 2021-11-08 | 2022-01-04 | 中国科学技术大学 | Village historic building fire induces building group fire simulation experiment device under effect of environmental wind |
| CN115148080A (en) * | 2022-03-21 | 2022-10-04 | 中南大学 | Tunnel fire simulation experiment device under natural rainfall environment |
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