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2011-12-31View Original

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本帖最后由 dongliangsir 于 2012-1-1 13:08 编辑 分馏塔塔顶回流量增大,塔顶温度和空冷后温度怎么变化?
Reply #22011-12-31
分馏塔顶温度下降,空冷后温度下降,温度过低会导致气压机入口流量降低,严重时会导致气压机喘振,影响反飞动流量,从而影响反应压力的波动。
Reply #32012-01-01
顶回流量过大造成顶温度过低,冷后温度也过低,汽油出入失衡,顶部塔盘易结盐
Reply #42012-01-02
分馏塔顶温度下降,空冷后温度下降
Reply #52012-01-02
塔顶温度和冷后温度当然都降低了
Reply #62012-01-02
塔顶温度降低,冷后温度降低。容易导致回流比失衡。
Reply #72012-01-03
回复 1# Tmac周 楼主的问题比较大,应该界定清楚塔顶回流为什么要加大。如:塔顶温度高需要顶回流来降低塔顶温度,进而使塔顶产品干点合格,该种情况主要是装置负荷大时存在,装置负荷大顶循取热量有限塔顶温度控制不住需要使用顶回流来进行控制顶温,这一过程主要是利用塔顶系统的冷却余量,若塔顶系统冷却余量不能满足需要会导致顶温只是稍降,但塔顶冷后温度会上升、塔顶压力会上升、塔顶至回流罐压降上升、气压机入口温度上升、气压机入口压力下降、气压机负荷上升等;所以楼主最好将你所需要讨论的前提或你想了解的目的表达清楚才好
Reply #82012-01-04
顶温会降低 ,空冷冷后温度也降低,
Reply #92012-01-06
回流加大塔顶温度正常会下降,但冷后温度不一定下降,尤其是短时间内的大回流,有可能会使冷后温度先升后降,主要是由于塔顶回流增加后,整个塔顶冷却器负荷也相应增加,就有可能造成冷后温度上升。
Reply #102013-08-17
为什么气压机入口压力会上升?

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