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2019-08-28View Original

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Reply #22019-08-31
重沸器换热
Reply #32019-09-01
一般的重沸器塔底入口与出口就差几度,比如说进重沸器的是1137度,重沸器返塔是1138度。可是我这里有个重沸器入口温度是 from8度,返塔高的时候到to96度。塔底设计温度是from7度,可是怎么升温也升不到,塔压力也是按照设计压力来控的,并且这个重沸器的蒸汽减温减压器压力不好控,一会高一会低,好的时候到to.3兆帕,导致安全阀起跳,怎么关蒸汽调节阀,蒸汽压力也不降。可是有时忽然压力就降了,一直降到to.3兆帕甚至更低。然后压力还会自己非常缓慢的涨到跳安全阀。哪位大神能帮忙分析一下呢。
Reply #42019-09-02
具体问题具体分析吧,你这么说的太笼统了,不好判断原因。
Reply #52019-09-02
根据您的描述,分析可能原因:1、塔底组成与设计偏差大,过多的轻组分造成塔底温度较设计温度低。也、蒸汽压力波动大,可能由于换热器负荷波动大造成的,当温度串级凝液排放量控制时,温度高造成凝液阀门关闭,换热器内压力升高。3、还有一种原因就是换热器结垢严重,换热效果差,换热器蒸汽侧压力高,造成安全阀起跳。具体问题具体分析,您这个描述实在没有画面,方便的话附上流程图更好说明问题。

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