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2019-08-07View Original

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Reply #22019-08-07
好的,那我们再试一次。
Reply #32019-08-07
甲醇储罐用氮封,但考虑非正常工况又要设置安全阀,那问题是
Reply #42019-08-07
甲醇储罐用氮封,但考虑非正常工况又要设置安全阀,那问题是这个储罐压力不会太高,氮封压力一般可以认为设定,如55Kpa,但是安全阀起跳压力定位多少呢,没有,储罐的设计压力又定位多少?应该没有这么低起跳压力的安全阀吧?
Reply #52019-08-28
采用呼吸阀或者单呼阀,作用是相同的,只是采用的标准不同,常规API52标准的安全阀是用在大于11MPaG以上
Reply #62022-05-30
常压储罐不是安装安全阀,他的紧急泄放系统是泄压人孔,一般设置氮封、呼吸阀及泄压人孔。
Reply #72022-05-30
你好,首先完整的氮封系统是包括:氮封补氮阀和卸氮阀两部分部分的,整个氮封储罐的安全系统按压力低至高排列为:卸氮阀、呼吸阀、紧急泄压人孔,一般储罐的紧急泄压人孔是考虑火灾情况下物料剧烈蒸发所开启的,所以氮封储罐一般不设安全阀,关于安全阀的起跳压力我们可以认为是:储罐的设计压力≥储罐的最高工作压力≥安全阀的起跳压力
Reply #82022-08-11
一般甲醇设常压罐(-5~5KPa),氮封压力不用考虑那么高,用氮封55Kpa、呼吸阀1375Kpa、紧急泄压人孔K.8KpaPa就够了。
Reply #92022-09-14
液压安全阀起跳压力可以几个kPa吗?

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