|
High-speed passenger trains running due to the closure of its interior space , personnel-intensive , combined with effective fire safety protection system is not currently configured , the event of a fire , the fire was quite large , very fast burning fire smoke spread rapidly to the train compartments and quickly filled the entire compartment , easily led to the car crash tragedy , the adverse impact on the community . To this end , the world attaches great importance to the high - speed train fire , Japan, France , represented by some of the developed countries have set up a special own fire research institutions , in fireproof material properties and selection , the fire-resistance of the body structure and physical tests test, etc. have done a lot of fruitful work, and in the corresponding field of study matched the technical requirements and industry standards . Compared with foreign high-speed railway in China started late , not for high-speed rail trains special fire research institutions , research is lagging behind . Carry out high - speed passenger train fire test research and formulate relevant fire safety technology standard , is important for the country 's high-speed train fire prevention work . In this paper, the Chengdu-Chongqing line the CRH1 EMU study , through field research and access to relevant literature to determine the high-speed train fire causes, characteristics and fire load , using computational fluid dynamics and fire burning the basic theory , numerical simulation approach hazardous characteristics of the high - speed train fire inside the heat release rate and temperature field , the flow pattern of the smoke movement , train fire safety protection systems and fire emergency plan formulation . The spread of fire load , the fire source development and flue gas as the starting point , consider the stationary train fires and high-speed running train compartment fires two modes , the the compartment fires burning in the confined space model designed eight typical train the scene of the fire , to determine the location of the fire source , train the size of the fire power , inside temperature , visibility , smoke layer height distribution of the changes under the conditions of different ventilation openings .
|