The author described philosophy, causes and precautions for water hammer appearance in steam piping, drum, feedwater piping, economizer, drum draining tube, sub-steam cylinder etc.
叙述了蒸汽管道、锅筒、给水管道、省煤器。锅筒放水管、分汽缸等发生水冲击的基本原理，产生原因和预防措施。
Suggest having local readout at manual valve for each drum so that operator can level in drum when draining.
建议每台罐在手动阀门处有就地读数，以便操作员在排凝时知道罐的液位。
Suggest having local readout at manual valve for each drum so that operator can level in drum when draining.
建议每台罐在手动阀门处有就地读数，以便操作员在排凝时知道罐的液位。
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