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2019-06-24View Original

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Reply #22019-06-24
液体不可压缩,如果前后手阀关闭,管道中的介质当受热膨胀后会损坏管道,因此都要加
Reply #32019-07-17
可行性呢,后果呢,有哪个装置能做到?
Reply #42019-07-17
我猜想这个问题实际情况中并不严重主要原因是阀门内漏,满管的液体受热膨胀产生的压力是惊人的,实际到不了这么高的压力阀门已经发生内漏,尤其是硬密封阀门,至于什么情况需要加安全阀,我能想到的,1、比较长的满管液体管道,尤其走的是液化气体。2、两端被密封性能好阀门切断。3、管子没有绝热,温度变化大。4、绝对不允许超压泄露,后果严重。
Reply #52019-07-17
被加热一侧的换热器组,并且前后有隔断阀的情况,防止误操作时,可增加一个安全阀。
Reply #62019-07-23
石油化工企业设计防火标准GB50160-2018班里有要求,一般液化气、甲、已必须加安全阀。
Reply #72019-07-25
5.5.6 两端阀门关闭且因外界影响可能造成介质压力升高的液化烃、甲B、乙A类液体管道应采取泄压安全措施

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