67 results about "Fire experiment" patented technology

The present invention relates to a small-scale multifunctional tunnel fire experiment platform. The small-scale multifunctional tunnel fire experiment platform comprises a tunnel main body, manually operated doors arranged at two sides of the tunnel main body, a pedestal pillar with a lifting function, a shaft arranged on the top board of the tunnel, a ventilation system and a fire source simulation system disposed at one side of the experiment platform, and a matched monitoring system arranged in the tunnel. The tunnel main body is formed by splicing a plurality of same subtunnels capable of horizontally dismounting, the length of the tunnel is easy to regulate, and the gradient of the tunnel is controlled; the manually operated doors at the two sides of the tunnel are able to manually control opening and closing; and slots are arranged at the positions with different heights, and the aspect ratio of the cross section of the tunnel is changed through embedding an extra base plate. According to the invention, the defects are overcome that a full-scale tunnel fire hazard experiment is difficult in operation and high in cost, and the deficiency is solved that other small-scale tunnel fire hazard experiment platform is too simple in research situation; and moreover, the fire hazard combustion behavior and the flue gas control method of the tunnel with different types and structures may be researched, and the applicability and the flexibility are high.

The invention provides a comprehensive detection simulation experiment device for fire detection performance. The comprehensive detection simulation experiment device comprises an experiment table body (1), a matched simulation generation device, a measuring and controlling system and a fume extractor (20). The experiment device has a conventional fire detection performance detection function, can be combined according to conditions of detectors and characteristics of suitable places, is capable of overcoming the defects that existing devices do not take fume distribution characteristics and dust, water mist and wind speed changes into consideration and detection performance is affected by the positions of the detectors, and has the advantages of multiple functions, simple structure, high reliability, convenience in assembly and disassembly and low cost. The device is capable of performing various experiments of small-size standard fire experiments, flow equalizing fume simulation, practical application environment simulation and the like, and influences on fire detection performance by the positions of fire detectors relative to a fire source are considered. Enough detected fire detector mounting threaded holes are formed in a ceiling of a firing chamber, so that positions of the fire detectors in the firing chamber are changed conveniently according to practical situations of the fire detectors.

The invention relates to a railway tunnel rescue station fire experiment system comprising a plurality of evacuation transverse passages. The railway tunnel rescue station fire experiment system comprises an experiment tunnel main body and a data measuring system. The experiment tunnel main body comprises a fire tunnel, evacuation transverse passages, a non-fired tunnel, a train model, a fire source and a smoke evacuation system. The fire tunnel is communicated with the non-fired tunnel through the evacuation transverse passages. The train model, the fire source and the smoke evacuation system are arranged in the fire tunnel. The fire experiment platform comprises nine evacuation transverse passages. By blocking different numbers of evacuation transverse passages, fire experiment research of railway tunnel rescue stations with different numbers of evacuation transverse passages is realized. The experiment platform is relatively wide in application range and is capable of combining fire scenes different in number of rescue station evacuation transverse passages, fire position, smoke evacuation mode and ventilation condition, so that the analysis research work of a plurality of railway tunnel rescue station fire scene experiments under practical conditions are realized, and the railway tunnel rescue station fire experiment system is wide in application prospect and has important guiding significance.

The invention relates to a fire experiment simulation device in a narrow and long limited space, and the device comprises a simulation cabin, a first thermocouple unit, a second thermocouple unit, a smoke collecting system and a computer control system, wherein the length-width ratio and the length-weight ratio of the simulation cabin are (10-8):1 respectively, and a fire generation device is arranged at one end part of the bottom surface of the simulation cabin; the first and second thermocouple units are arranged on one side surface of the simulation cabin; the computer control system is used for collecting temperature and smoke gas information in the simulation cabin and performing data analysis; the first thermocouple unit comprises a plurality of thermocouples which are horizontally arranged in the positions close to the top of the cabin along the length direction of the simulation cabin; and the second thermocouple unit comprises a plurality of thermocouples which are gradually arranged from top to bottom along the height direction of the simulation cabin in a loose manner. The invention establishes the fire experiment simulation device for researching the flashover mechanism in the narrow and long limited space for the first time, the device has a complete temperature measuring system and the smoke collecting system, the structure is reasonable in arrangement, and the experimental accuracy is high.

The invention relates to a subway carriage fire experiment table. The experiment table is same as a practical subway carriage in structure and is respectively provided with a door and a window at the left and the right; for the length, two ends of the experiment table are respectively provided with a front end door and a rear end door; the top inside the carriage experiment table is uniformly distributed with over three temperature probe strings inside the carriage; the upper part of the front end door is respectively provided with a temperature probe string, a speed probe string, an oxygen concentration probe and a monoxide concentration probe; one side of the exterior of the front end door is provided with a staff gauge; the middle-upper part inside the carriage experiment table is provided with an oxygen concentration probe and a monoxide concentration probe; and a camera system is arranged outside the window at one side of the experiment table. The experiment table is a large experiment table which first comprehensively and systematically researches heat release speed, smoke movement, fire detection and saving and the like of subway carriages, overcomes scale reduction and experiment error caused by a partial model experiment table, and ensures the repeatability of experiments.

The invention belongs to the technical field of fire control, and particularly relates to a device and a method for measuring combustion characteristics of combustible materials. The device consists of a high temperature resistant weighbridge, a high temperature resistant bracket, an oil pan, a micromanometer, a thermocouple, a two-way probe, a thermal radiometer, a compensating conductor, a dataacquisition system, an ignition pan, a rectification grid, an air feeder, a bracket and an air tube. The device is arranged in a fire experiment lab, combustible materials to be measured are arrangedon a tray of the weighbridge, after the combustible materials are ignited with the constant-power ignition pan, the air feeder is started, and the mass loss rate, the fireplume speed, the temperatureand the radiant heat of the combustible materials under different air speed are measured. Then combustion heat measured with an oxygen bomb calorimeter is multiplied by the combustion rate to obtain the thermal power of the combustible materials. The device has a simple structure, the calculation is convenient, the limitation of laboratory conditions and fire source power is small, and the deviceand the method are suitable for measuring the combustion characteristics of large combustible materials.

The invention discloses a variable position simulation experiment platform system for a cross fire on a multi-lane highway tunnel, comprising a highway tunnel simulation platform to simulate a fire inany cross position on a multi-lane highway tunnel, and a test system; a simulated fire may move across a rail and may be fixed; the test system includes fuel mass loss, tunnel interior temperature field and wind speed test systems and experimental process images. The system of the invention can simulate a fire occurred in any cross position of a multi-lane highway tunnel; platform section shape,fuel type, fire scale, coating layer heat-insulating layer, height between a fire and the floor of the tunnel and other data are set according to related theories based on actual tunnel conditions, confidence level and accuracy are ensured, and the defects of all-size fire experiments are avoided. The system can also provide real-time fire process all-data recording and is significant to the development and improvement of highway tunnel and even railway tunnel operations and fire rescue evacuations.

The invention relates to a low-pressure plane cargo space fire experiment simulation device which comprises an experiment table body. The experiment table body is a sealed space and is provided with a door and an observation window. The inside of the experiment table body is provided with a simulated fire source, an electronic balance, a thermal couple probe string, a heat line air speed probe string and a smoke content measurement probe string. The experiment table body is connected with a ventilating system, a vacuum system and a smoke exhaust system, wherein the ventilating system, the vacuum system and the smoke exhaust system are connected with a measurement and control system. The simulation device is a full-size experiment table for comprehensively researching fire smoke motion rules, fire detection, fire extinguishing and the like in a limited space of a low-pressure plane cargo space, changes of pressure in the cargo space can be regulated, air flow in the cargo space in a normal-pressure state and a low-pressure state is evenly distributed, pressure dynamic balance in the combustion process of the fire source in the cargo space is maintained, and besides, the simulation device is convenient to operate, safe, reliable and low in manufacturing cost.

The invention discloses a tunnel fire experiment simulating device with different smoke exhausting modes and an adjustable gradient. The tunnel fire experiment simulating device comprises a first sub-tunnel, a second sub-tunnel, a telescopic flame-retardant sleeve, a plurality of hydraulic lifting columns, a first variable-frequency motor, a motor elevating bracket, a second variable-frequency motor, a third variable-frequency motor, a smoke exhaust channel, a plurality of smoke collecting covers, a fire source simulating assembly, a matched measuring and controlling assembly, a flow field monitoring field and an image acquisition device. The tunnel fire experiment simulating device can research fire combustion conditions in the tunnels with different gradients in a longitudinal smoke exhausting mode and a concentrated smoke exhausting mode in a laboratory, and realizes observation to a flue gas distribution condition and a fire rule in the tunnel.

The invention discloses a multifunctional railway tunnel fire experiment platform. Arc-shaped glass top plates and front and back vertical observation windows of a model are all made of transparent fire-resistant glass, so that air flow movement is conveniently observed, and a tunnel main body structure frame and a bottom plate are made of stainless steel. All segments of a main tunnel are in flanged connection with one another and are sealed by a transparent fireproof adhesive. A top partition plate with smoke exhaust ports and the arc-shaped tempered glass top plates are detachable, the different tunnel top plates can be selected and the relevant size can be adjusted according to the experiment needs, the arc-shaped tempered glass top plates are used for a longitudinal ventilation and smoke exhaust experiment of the tunnel, the top partition plate with the smoke exhaust ports is used for a concentrated smoke exhaust tunnel experiment, and vertical shafts can be installed over the smoke exhaust ports for a vertical shaft chimney effect experiment. A tunnel support base is of a steel structure, electric gradient adjusting can be conducted on the platform, and the gradient adjusting angle ranges from 0 degrees to 10 degrees. The main tunnel concentrated smoke exhaust experiment, the main tunnel longitudinal ventilation and smoke exhaust experiment and the vertical shaft chimney effect experiment can be simulated through the platform, and then a reasonable ventilation and smoke exhaust control scheme can be obtained.

The invention discloses a subway long and large interval fire experiment system and method. The subway long and large interval fire experiment system includes a subway tunnel entity unit, a train unit, a hot smoke generation unit, a ventilation smoke evacuation unit and an experiment measurement data acquisition unit, wherein the train unit is arranged in the subway tunnel entity unit; the hot smoke generation unit is used for generating the fire source and the smoke which are required by a fire experiment; the fire source and the smoke are generated in the train unit; the ventilation smoke evacuation unit is arranged on the subway tunnel entity unit, and is used for discharging the smoke in the subway tunnel entity unit; and the experiment measurement data acquisition unit is used for acquiring the fire experiment data. The subway long and large interval fire experiment system can simulate a fire accident in a subway long and large interval, thus saving the cost for fire accident simulation, and can optimize tunnel ventilation and smoke evacuation design of the subway long and large interval.

The invention discloses a piece of aircraft engine compartment fire experiment equipment which can be used to carry out an experiment for engine compartment fire dynamics research and carry out experimental verification of an aircraft fire prevention system. The equipment comprises an air inlet, a compartment body, an air outlet, an observation window, fake engine parts, a heating component, an engine compartment congestion part simulation device, a fire extinguishing agent concentration test interface, an oil pool fire module, a spray fire simulator interface, a temperature measurement module, an airflow velocity measurement module, a pressure measurement module, a laser flow field measurement module and a compartment body bracket. Compared with the prior art, the aircraft engine compartment fire experiment equipment can be used to carry out an experiment for aircraft engine compartment fire dynamics research and simulate the influence of the engine surface temperature on the experimental boundary conditions in the compartment.

The invention relates to a hydrogen energy automobile fire simulation and prevention and control experiment method and device. The device comprises a hydrogen storage system, an inhibition system, a control system, a data acquisition system, an automobile full-scale test model, a gas distribution system, a combustor and an automatic ignition device. An automobile real-scale hydrogen fuel cell automobile test model is adopted, a specially-made high-pressure hydrogen storage tank is combined, high-pressure hydrogen leakage diffusion and jet fire experiments of a hydrogen fuel cell vehicle underdifferent leakage positions, different leakage directions, different leakage heights, different leakage pressures and different leakage flows under the highest pressure of 80MPa and jet fire prevention and control experiments under different parameters are carried out; the hydrogen energy automobile fire simulation and prevention and control experiment method and device have the technical effectsthat related experimental data are provided for research on the high-pressure hydrogen leakage concentration distribution rule, the jet fire characteristics and the prevention and control technology of the hydrogen fuel vehicle, so that theoretical guidance is provided for prediction and prevention and control of fire accidents of the hydrogen fuel cell vehicle and a hydrogen refueling station.

The invention relates to an electric vehicle combustion experiment platform and an experiment method. The electric vehicle combustion experiment platform comprises a monitoring host, monitoring cameras, water guns, a temperature paperless recorder, temperature sensors, a wireless data receiving communication terminal, a display screen smoke gas concentration detection sensors, main enclosures, side enclosures, a tempered glass curtain wall and an operating platform. The experimental procedure is as follows: a fire experiment caused by electrical short circuit fault; the fire experiment causedby battery failure; an ignition experiment of standard fire source and the ignition experiment of front bumper. The invention has the following beneficial effects that the invention can record the combustion process and spread characteristics of the electric vehicle in real time, detects the temperature and smoke gas concentration changes in the combustion process of the electric vehicle, and realizes a fire risk assessment of the electric vehicle by completing the combustion experiment of the whole vehicle, summarizes the fire risk factors of the electric vehicle, provides a reliable technical basis for the vehicle manufacturer and the fire emergency rescue, and has a broad market prospect.

The invention discloses a modular subway tunnel moving body fire scaling-down experiment system. The system comprises a tunnel body, a pressure testing system, a temperature testing system, a smoke analysis system, a piston wind speed testing system, a train model and a burner arranged in the train model, wherein the pressure testing system, the temperature testing system, the smoke analysis system and the piston wind speed testing system are arranged on the tunnel body. The tunnel body and the train model are both formed by splicing multiple scaling-down model experiment standard sections. A locomotive and the tail of the train model are connected with a train model moving driving system and a train model moving driven system through chains respectively, and a jet fan air valve, a scaling-down jet fan, a smoke shaft axial flow fan and a smoke shaft air valve are arranged on the outer tops of the standard sections of the tunnel body. The length of a model tunnel is adjusted by adjusting the number of the standard sections of the tunnel body, and subway or railway tunnel moving body fire characteristics, smoke diffusion characteristics and the piston wind rule of a smoke exhaust scheme are researched by adjusting the starting combination mode of a jet fan module and a shaft axial flow fan module.

The invention discloses a device for simulating a fire experiment of a ship top open cabin under action of environmental wind. The device comprises a chamber, a wind supply system and a data acquisition and processing system; and the experimental simulation device is a small-size experiment table which performs comprehensive and systematic research on the influence of the flue gas flowing state, flowing form and flowing process as well as the behavior of fire in the chamber when a fire occurs in the ship top open cabin under the action of environmental wind. The characteristics that the full-sized experiment cost is high and a numerical simulation tool is not accurate are overcome on the basis of predecessors, the repeatability of the experiment is guaranteed, and great application value in development of laboratory scientific research, actual ship top open cabin flue gas control and optimization of smoke discharge effect is achieved. The device has actual guiding significance in design of a smoke discharge system when the fire occurs in the chip top open cabin.

The invention relates to the field of model tunnels, and discloses a model tunnel, a tunnel fire experiment platform and an experiment method. The model tunnel comprises a side air duct, a top air duct, a longitudinal air duct, an air supply device and an air exhaust device; the air supply device is connected with a blower nozzle of one of the side air duct, the top air duct and the longitudinal air duct, and the air exhaust device is connected with an air outlet of one of the side air duct, the top air duct and the longitudinal air duct. The tunnel fire experiment platform comprises a mobilefire source system, a data acquisition system and the model tunnel. The experiment method utilizes the tunnel fire experiment platform to carry out a fire simulation experiment. The experiment platform can realize lateral transverse, top transverse and longitudinal ventilation and smoke discharge simulation experiments, can simulate various complex smoke discharge modes, and has wide applicability.

The invention discloses a simulation pipe gallery pipeline fire experiment platform and an experiment method thereof. The simulation pipe gallery pipeline fire experiment platform comprises a pipeline, a pipe frame, a fire simulation mechanism and a data acquisition and processing mechanism. The fire simulation mechanism comprises an oil basin, a flame gun, a fuel supply mechanism, a wind speed adjusting mechanism, a liquid injection mechanism and a pressure adjusting mechanism. The experimental platform simulates environmental factors, pipeline operation conditions and fire accident types when a fire occurs in an actual pipe gallery. Temperature, pressure and pipeline deformation conditions of the pipe gallery pipeline are monitored in real time, and research on pipeline temperature riserules and failure time of different sizes and different transportation media under different environmental factors and different fire working conditions is achieved.

The invention relates to a buried horizontal oil tank blast accident harm test device which can simulate a buried oil tank fire and explosion scene and effectively acquire fire explosion experimental data information. The buried horizontal oil tank blast accident harm test device comprises a buried horizontal storage tank, wherein three manhole wells are formed on the top of the buried horizontal storage tank; a fire experiment flange disk is arranged on the first manhole well; a monitoring instrument manhole flange disk is arranged on the second manhole well, and is connected with a high-energy igniter, a temperature tester, a pressure tester and a concentration monitor respectively; and an oil feeding and discharging flange disk is arranged on the third manhole well, and is connected with an oil feeding pipe, an oil discharging pipe, a ventilating pipe and an oil measuring pipe respectively. The buried horizontal oil tank blast accident harm test device is mainly applied to developing a buried horizontal oil tank blast accident test in a gas station, can effectively simulate a fire accident and an explosion accident which are caused by the buried oil tank in the gas station, detect temperature, pressure and concentration changes caused by the fire and explosion accidents of the buried oil tank, and supplies a technical support to evaluating the safety of the buried oil tank in the gas station.

The invention belongs to the technical field of a fire experiment furnace, and particularly relates to a movable reaction support adopting water cooling at the bottom of the fire experiment furnace as well as a production method of the movable reaction support. Water is injected into a groove of channel steel, is taken as a heating medium and can reduce the temperature of an outer surface after evaporation, so that the problem of over high temperature of the outer surface of shape steel in the bottom support position in a fire experiment can be effectively solved, further, the shape steel is adopted to replace steel bars and criss-cross support plates are arranged in the support, accordingly, the bearing capacity of the bottom support is further improved, and the service life of the shape steel is prolonged by reducing the temperature of the outer surface of the shape steel; meanwhile, the condition that a worker is scalded by carelessly contacting with the shape steel of the bottom support in the experiment can be avoided; the movable reaction support can be used separately or in a combined manner aiming at a test object, is simple, practical, economical, reasonable, convenient to transport and easy to operate and can be widely applied to a building component fire resistance test in a fire laboratory.

The invention discloses a transformer fire experiment platform, and belongs to the technical field of fire fighting. The transformer high-voltage discharge fire research module is composed of a distribution line, a variable-frequency power supply, a transformer body oil tank and a grounding iron core. The transformer bushing jet fire combustion behavior research module is composed of a bushing simulation device, a gas cylinder, an oil injection pipeline and an oil injection pump; the transformer flowing fire combustion behavior research module is composed of a transformer body oil tank, an oil conservator, a radiator and an oil filling pump; the valve side wall surface flowing fire combustion behavior research module is composed of a transformer bushing, a valve side firewall, a gas cylinder and an oil injection pump; all the modules are started in sequence to jointly form a transformer combination combustion scene. The method is used for researching a substation fire scene, designing a fire extinguishing experiment method in combination with a substation fire extinguishing device, and verifying the fire extinguishing effectiveness of each fire extinguishing system.

The invention discloses a fire experiment table which comprises a support, a suspended sash window, a point window, a frame window, a door, a skylight and a fuel table. The support is used for forminga plurality of side faces; the suspended sash window is arranged on the first side face of the support, wherein the first side face is an optional side face among the side faces; the point window isarranged on the second side face of the support, wherein the second side face is an optional side face except for the first side face; the frame window is arranged on the third side face of the support, wherein the third side face is an optional side face except for the first side face and the second side face; the door is arranged on the fourth side face of the support, wherein the fourth side face is an optional side face except for the first side face, the second side face and the third side face; the skylight is arranged at the top of the support; the fuel table is placed into an internalspace formed by the support and used for holding fuels. By the aid of the fire experiment table, the fire smoke spreading law of a window at different opening angles is researched, corresponding glasswindow design and production manufacturers can be effectively guided to more effectively grasp performances, and the experiment table can effectively play a role when a fire really breaks out.

The invention provides a thermocouple support apparatus applied to a large-space fire experiment. The thermocouple support apparatus comprises a pedestal portion, a supporting portion, a thick sleeve portion, a thin sleeve portion, a thermocouple hole portion, and a bolt buckle portion. The thermocouple support apparatus is simple in principle and easy to operate, may easily performs adjustment, including rotation and up and down movement, on a thermocouple measuring point position in a large-space fire experiment, has good mechanical stability, has high safety, protects the thermocouple, prolongs the service life of the thermocouple, and facilitates the dismounting of the thermocouple. The thermocouple support apparatus is good in popularization and wide in application range, and can be generalized and used in a large number of large-space fire experiment occasions such as stadium fire experiment temperature measurement, subway fire flue-gas temperature field measurement, tunnel fire flue-gas temperature field measurement, large market fire flue-gas temperature field measurement and the like.

The invention discloses an oil storage tank area fire simulation experiment platform which comprises a causeway and a plurality of oil storage tanks arranged in the causeway, the tank top of at least one oil storage tank is composed of two semicircles with the same size, the two semicircles are movably connected, the first semicircle is fixed to the top of the oil storage tank, and the second semicircle rotates around a connecting shaft of the two semicircles. A through hole is formed in the second semicircle and used for installing a pressure release valve and a pressure gauge, and a heating rod is arranged at the bottom in the oil storage tank. The physical fire experiment platform is built, oil storage tank fire accident types generated by different pre-combustion time and different factors are simulated and analyzed, fire accident characteristics and fire extinguishing difficulties are summarized and analyzed according to simulation results of the experiment platform, the reproduced oil storage tank fire accidents are real and reliable, and the experiment platform has high practical value. Good practicability is realized in the aspect of fire-fighting research.

The invention discloses a convenient dust removal and smoke exhaust wind tunnel experiment device and method capable of adjusting an airflow angle, and the device comprises a power system, a rectification pipe network, a horizontal experiment table in a wind tunnel, a hydraulic lifting device, and a quick smoke exhaust system, and can carry out a small-scale fire experiment under the action of inclined airflow. The wind speed in the power system is adjustable, the turbulence of airflow is reduced through the rectification pipe network, and the stability of the wind speed is improved. The inclination angle of the wind tunnel is adjusted through a hydraulic lifting device at the bottom of the device, and then airflow with different inclination angles relative to the horizontal experiment table is provided for a fire experiment under the action of inclined airflow. An openable door-type structure is arranged at the experiment section, so that experiment instruments can be conveniently placed, and smoke dust in the experiment cabin is removed. A smoke exhaust fan is arranged at the tail end of the wind tunnel, and a smoke outlet is connected outdoors through a pipeline to guarantee good experimental environment. According to the invention, a fire experiment under the action of inclined airflow can be quantitatively studied, and a reference basis is provided for a fire scientific experiment method.

The invention relates to a marine engine room barrier wall surface gas jet fire combustion simulation experiment platform, which comprises a marine engine room simulation cabin used for simulating a marine engine room environment; jet fire combustion simulation systems are arranged inside and outside the marine engine room simulation cabin and used for simulating the gas jet fire combustion condition; a barrier object control system which is arranged in the marine engine room simulation cabin and is used for simulating barrier objects at different angles; and a data acquisition system which is arranged in the marine engine room simulation cabin and is used for measuring fire parameters during combustion of the gas jet fire so as to analyze combustion characteristics of the gas jet fire. According to the invention, ship cabin jet fire combustion simulation experiments under the action of different angles and types of barrier wall surfaces can be realized; the platform can reveal and is not limited to a jet fire combustion kinetic parameter change rule under the effect of a marine engine room barrier wall surface and a jet fire plume behavior characteristic kinetic evolution mechanism under the change of factors such as a gas leakage aperture and rate, a jet angle, a hole-wall distance and the like.