This paper presented a new physical model of space potential inside two concentric cylindrical silos,and got a function of the maximum potential inside this construction.

• 提出并建立了同轴双圆柱料仓结构电场分布物理模型,给出了内外圆柱间的最大电位方程;提出了如何使内外圆柱间的最大空间电位降至最小的设计思路与技术路线;