The key process parameter of normal operation of the indication column are vapour box pressure top temperature of primary column middle temperature of rectifying column alcohol vapour temperature of condenser and liquid level of column bottom .

标志塔正常运行的主要工艺参数是蒸汽包压力。粗 塔顶温、精塔中温、冷凝器酒气温度、塔底 液位。

To ensure the safe operation of the unit the top cover is equipped with liquid level alarm to supervise the cumulate water level in the top cover .

为了保证机组安全运行， 顶盖内设有 液位信号器，来监视顶盖内积水的水位。