精馏塔turndown的意思? 某装置设计文件中的一段话: the design capacity of the plant is 100,000 metric ton/year xx product based on 8000 operating hours per year, with a flexible operation capacity ranging from 120% to 60% of the design capacity .............................. the turndown for this unit is 60% of the design capacity . the unit on-stream factor is 8,000 hours per year. 在本例中操作弹性是60%~120%,其中60%就是最低可调负荷。 查看更多