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2020-07-30View Original

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["Ajuda com o choque deum
Reply #22020-07-30
*, Senhores mestres, estamos usando vapor a 1 bar na na na我们的反应釜,水击现象非常严重,每两个月都需要更换一次共用蒸汽和冷却水的管道。最近要新上一套釜,想请教一下从设计角度,怎么才能最大程度减少或避免水击现象啊?
Reply #32020-07-30
请把问题写清楚。反应釜是加热夹套还是加热盘管?从文中看是加热和冷却公用夹套或盘管。水击发生在什么位置?什么时候?这些说清楚了,才好判断。
Reply #42020-08-01
1、共用管道的蒸汽和冷却水,引入蒸汽前应排尽管道内存水,否则必然会水击;在冷却水停止后,先打开低点排水阀排水,然后稍开蒸汽管道升压,继续排水,从低点导淋水完全排尽、可见大量蒸汽后关闭导淋阀,逐步开大蒸汽直至达到加热要求。如果蒸汽和冷却水共用管道没有低点导淋阀,则必须在适当位置增加,最好是加一个导淋阀一个排空阀。
Reply #52020-08-05
你所说的并不是水击,是汽水共腾发出的声音。送蒸汽前需将管道内冷凝水排尽。
Reply #62020-08-06
没明白这种情况水击在什么部位,以及产生原因

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