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Research of Explosive Pressure of Combustible Gas in Horizontal Pipe

Author: ZhangYingHao
Tutor: TanYingXin
School: University of North
Course: Safety Technology and Engineering
Keywords: Methane Acetylene Explosion pressure Gas explosion Horizontal pipe
CLC: X932
Type: Master's thesis
Year: 2009
Downloads: 240
Quote: 3
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Abstract


In industrial production , the resulting explosion hazards mainly damage caused by the explosion pressure , so the gas explosion pressure and the variation of the relevant parameters depth , systematic research, help to further propose viable proof , suppression Critical to provide evidence . This paper introduces a more comprehensive combustible gas explosion research status , describes the main features of the pipeline explosion parameters , the choice of two chemical activity of different combustible gas as the research object , through a large number of experiments to study the combustible gas explosion pressure and propagation of the pressure variation . This experimental device in a horizontal pipeline , based on the establishment of a combustible gas explosion pressure test system for acetylene and methane chemical activity of these two different combustible gas explosion was investigated experimentally . Theoretical reference values ??were determined by experiment methane and acetylene gas explosion produces a maximum pressure ; take advantage of 0.7m, 3.1m and 9.7m three different lengths of pipes, to study the length of the combustible gas pipeline maximum explosion pressure effects ; 0.7 m pipeline to study the sensor mounting position of different combustible gas explosion on impact pressure measurement . Experimental results obtained two kinds of the combustible gas reaches the maximum explosion pressure and the maximum explosion pressure and time data , the data show the greater activity of the higher reaction rate of combustible gases , explosion pressure , the more a risk of explosion . This article also axial pressure within the pipe and radial pressure compared and analyzed on the basis of the chemical reactivity of different combustible gas reflected wave influence on the flame propagation . Less active methane explosion flame propagation process reflected waves strong inhibitory effect on the flame , the flame offset phenomenon exists , and higher activity acetylene flame propagation process in the blast reflected wave on the flame propagation speed was less affected. The work can be enriched methane, acetylene bang theory , be able to prevent pipeline explosion , mine gas explosions in roadway accidents provide theoretical references .

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CLC: > Environmental science, safety science > Safety Science > Safety Engineering > Explosion safety and fire and explosion
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