Experimental Research on Intelligent On-line Monitoring of Urban Gas Pipeline Leakage
In this paper,a new adjoining pipe system which is used to detect the leakage of gas pipeline is proposed,a detection system of the leakage of oil and gas pipeline which has efficient detector tube,vacuum extraction system,the pipeline leak positioning model,PLC examining and control system,and GPRS data remote system is developed,and experiments are done too.The experiments show:when the number of pressure small,stream cutoff appears and the flow pattern and the quantity of permeation gas are irregular;when the pressure valve is 60 kPa～101 kPa,the results of experiments are good;when the pressure is at the same level,the quantity of gas in the detector tube increases and the infiltration capacity of CH4 increased.When the pressure and the quantity do not change,the longer the pipe is,the more the infiltration capacity is.Due to the long pipe,the quantity of gas which permeates to the detector tube is big,the gathering time of gas which is in the detector tube is long.Under the effect of flow,the quantity of permeation gas which is detected by CH4 is big.The results of this study can provide technical support for improving the monitoring level of urban gas pipeline leaks.
gas pipelineleakage monitoringintelligentexperimental research
万方数据
维普
