Application of the HTV boat-shape floating valve tray in the north distillation tower and fractionator of delayed coker of Jingmen General Petrochemical Works were introduced with emphasis on process calculation, operation, unit evaluation and equipment maintenance. 介绍了HTV船型浮阀塔板在荆门石油化工总厂北蒸馏装置常压塔及延迟焦化装置分馏塔上的应用情况。