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孙可平, Keping Sun, Quanzhen Liu, Xuewen Li
,-0001,():
-1年11月30日
Explosion accidents on oil tank take place for two times last three year in China.The simulation test on charge density and surface potential during filling gasoline into a tank has been conducted.The volume-averaged charge density was found to rise to a maximum about 20 minutes after the pump was started and then began to decrease.The experimental dada correlate well with a simple predictive model under the assumption of uniform volume charge density and ohmic conduction.The surface potential rose steadily for about 30minutes and then decreased during filling operation.The maximum of surface potential sharply increased when the filling rate rose.
oil electrostatics, liquid electrostatics, petroleum safety, electrostatic safety technology
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【期刊论文】BACK CORONA TEST MODEL IN DEPOSITED DUST LAYER IN PRECIPITATOR
孙可平, Sun Keping, Liu Quanzhen
,-0001,():
-1年11月30日
Back corona in deposited dust layer of collecting electrode in precipitation,which decreases flash-over voltage,as well as increases working space current,not only makes dust-collecting efficiency reduced obviously,but also influences steady operation of static dust precipitator tremendously.Back corona becomes one of the obstacles baffling dust-collecting stable operation.Starting from resistance-capacitance model,this paper tried to present instantaneous voltage equation in surface of dust layer.Also starting from increasing process of dust layer,this paper gave charge density instantaneous equation in dust layer and discussed the influence factors to back corona.
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