Fire Danger Of Urban Underground Pipe Control Technology Research

Since our country put forward the "13th Five-Year" plan,local governments pay more and more attention to the city’s infrastructure construction,including natural gas,electricity,communications,water supply,sewage and other underground pipeline laying,known as the city construction of lifeline engineering.Underground pipe gallery refers to the construction of a tunnel in the city underground space electric power,communication,public utilities such as water supply pipeline planning in accordance with the requirements of laying in the implementation of unified planning,design,construction and management of.[1] with a wide range of urbanization,since2015 the metro area in our country to build large-scale city comprehensive pipe gallery.But in the process of operation,understand the control technology operations management units to the fire risk is very little,and the tube pipeline in the gallery of asylum,through the investigation and interviewed found the pipe gallery cabin fire load,fire cause,fire accident,fire accident spread quickly,easily lead to secondary disasters,complex surrounding environment usually,which basically no one stay,once the fire fighting difficult,difficult to find,the relevant departments at the same time to various management authority complex.The current national standard for lack of monitoring and alarm system of standard pipe gallery.Therefore,it is necessary to analyze the fire risk control technology of the underground pipe Gallery.Based on the underground space fire and pipeline accident characteristics as the starting point,from the concept of modern building fire risk control,and Research oncomprehensive pipe gallery,how to combine with the technology and modern building fire alarm monitoring automatic fire extinguishing technology integration combined with the standard,used in the integrated pipe gallery.Comprehensive consideration of the cause of the accident and hidden trouble the characteristics of power line and pipe gallery in natural gas pipeline,and puts forward the suggestions of the environmental monitoring pipe gallery.In addition,the modeling and Simulation of power cable cabin fire by PyroSim,control of cable fire danger according to the simulation results verify the analysis of cabin fire automatic fire extinguishing system,and puts forward suggestions.Finally,the fire in the light of the existing system is not perfect,put forward the application of fire hazard prevention and control technology of soft pipe gallery.