Study On Numerical Simulation Of Hospital Fire And Evacuation Of Personnel Safety

Along with the continuous development of our country's economy in recent years,people also have corresponding to the requirement of medical treatment,the hospital to the top,the large scale development to meet the needs of social development.Hospital as a stream,equipment focus and the difficulty of evacuation,public places,in the event of fire,will inevitably cause significant casualties and great economic damage to property.Therefore,we need to conduct the thorough research to the hospital building fire,improve the safety of the performance-based fire protection design for hospital provide scientific guidance and personnel safety evacuation.For building fire at home and abroad,summarizes the research status quo analysis,put forward in this paper,the research content,research method and technical route.This paper on the mechanism and condition,the fire burning of fuel combustion characteristics,fire plume and ceiling jet fire burning foundation as well as the development and spread of building fire are analyzed in theory.Second to fire hazards analysis of the research object,combined with its actual conditions,established the fire growth type,fire parameters such as position,the maximum heat release rate.By analyzing the simulation results,it is concluded that the flue gas temperature,visibility,height of smoke layer with the change of time,the characteristic parameters such as the coming of fire hazard.When a fire and then to the hospital personnel psychological reaction and behavior characteristics are analyzed,to determine the evacuation scenario,the number of evacuation,the response characteristics of type,the personnel and the personnel to determine parameters such as speed,will get the hospital personnel must be safe evacuation simulation time compared with fire danger coming time,four kinds of validation set fire scenario personnel safety.Finally analyze the simulation results,it is concluded that the hospital law of the development and spread of fire,and put forward feasible combined with the actual situation of building fire protection measures and evacuation plan,provide similar hospital building performance-based fire protection design.By analyzing the results of visibility,data,such as temperature,smoke layer height,respectively determine the fire occurs,the scenario 1,2,3,4 available safety evacuation time is respectively 205 s and 180 s,185 s and 180 s.In the functional division of existing building evacuation scenario 1 was simulated,and the corresponding fire scenario and people can't do it completely safe evacuation;Division based on the research object to evacuate after the evacuation simulation for scenario 2,can in the corresponding fire scenario the required safety evacuation time completion,but for fire scenario 2,4,simulation of evacuation time and fire hazard coming close to,didn't set aside some mental safety margin.