【摘 要】
：
In order to quantitatively analyze the spark discharge risk of floating roof tank shunts,the breakdown voltage of shunt has been calculated by Townsend theo
【机 构】
：
SINOPECSafetyEngineeringInstitute,Qingdao,China;StateKeyLaboratoryofChemicalSafety,Qingdao,China
【出 处】
：
The 7th International Conference on Applied Electrostatics(第
论文部分内容阅读
In order to quantitatively analyze the spark discharge risk of floating roof tank shunts,the breakdown voltage of shunt has been calculated by Townsend theory,the shunt spark discharge experiment is carried out by using 1.2/50μs impulse voltage wave,and the relationship between breakdown voltage of shunt spark discharge and air gap is analyzed.It has been indicated by theoretical analysis and experimental study that the small gap is more easily cause spark discharge than the big gap when the contact between shunt and tank shell is poor.When air gap distance is equal to 0.1cm,average breakdown voltage is 5280V.When the air gap distance is less than 0.3 cm,experiment data agree well with Townsend theory.
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