The Optimization of Gas Leak Monitor Points Distribution in the Underground
It is essential to conduct the real-time monitoring of the gas concentration in the underground space since explosive gas will spread and accumulate when a pipeline leaks, which can lead to a serious gas explosion accident.However, the real-time monitor needs a large number of monitor points which results in high cost.In this paper, an optimization method describes the monitor point distribution for real-time detection of the gas leakage from the pipeline was proposed and analyzed by conducting a case study on a section of road in Beijing Institute of Technology, China.Factors that influence the gas leakage diffusion radius were discussed, and a probability function to calculate the gas leakage diffusion radius was proposed.In the optimizing process, firstly a preliminary optimization was performed based on the principle that the distance between the monitor point to the pipeline is the shortest;then the probability of every micro-section of the gas pipeline to be detected is evaluated, coupled with the function to calculate the gas leakage diffusion radius.The radius of gas diffusion is 12.5 m when the pipeline is in low pressure.The effective monitored length is defined by the length of the gas pipeline which located in the monitoring range.Taken the expected value of the monitor length as the effective monitor length for each monitor point, the one coupled with the shortest effective monitor length will be deleted, the effective monitor length of every monitor point will be recalculated, and finally the optimization scheme for different amount of monitor points could be acquired.Based on the optimization goal such as the cost, the effective monitor length, the effective monitor rate, etc., the best solution could be carried out.
gas leakage diffusion radius optimization of distribution of monitor points effective monitoring length
HOU Longfei ZHANG Jingyuan QIAN Xinming HUANG Ping YUAN Mengqi
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
国际会议
The 2016 International Symposium on Safety Science and Technology(2016安全科学与技术国际会议)
昆明
英文
221-221
2016-10-17（万方平台首次上网日期，不代表论文的发表时间）