本文针对回转式空气预热器密封系统中一个主要部件——径向密封板的最佳分段位置进行了分析和探讨。在一定的物理简化基础上,运用数学分析,推导了受热面转预热器和风罩转预热器的冷、热端径向密封板(密封框架)单铰链点、双铰链点的最佳位置,从理论上指示最小隙漏密封板应如何分段。 This paper analyzes and discusses the optimal segment location of a radial seal plate, a main component of rotary air preheater sealing system. On the basis of some physical simplification, mathematical analysis was used to deduce the best position of the single hinge point and the double hinge point of the radial sealing plate (seal frame) of the cold and hot end of the preheater and the rotary fan , Which theoretically indicates how the minimum gap leakage seal plate should be segmented.