["¿Por qué no se puede destilar en la parte superior de la destiladora?", "¿Por qué no se puede destilar en la parte superior del destilal,r, ¿Todos los amigos estabannnormales (temperperatura y vac "u "u "npresión normales)". ¿Suspe "imos que las líneas denn " "nan obstr " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " pérdida de la línea de de vac " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " "
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为什么精馏塔塔顶蒸不出料，请各位朋友指导。 塔釜4方，装料3.5方，高真空减压精馏，塔顶刚开始出料正常，当塔釜剩余1/4时，蒸不出料了，塔顶温度降低，所有操作条件正常（温度、真空度正常）。怀疑管线堵，拆了发现没有堵。然后我们又加料3方，继续精馏，而这次把这3方及上批剩余的全部蒸出来了，什么原因造成的1/4不出料呢？
如果蒸不出来真空度应该不正常啊，“塔顶温度降低，所有操作条件正常（温度、真空度正常）”这个矛盾了啊，温度到底正不正常呢
真空度是一直正常的，塔釜温度一般是170-185度之间，当蒸到釜剩余1/4时，就不出料了，我们遇到3次了，然后重新蒸不清楚什么原因突然就好了。所以原因我找不到
塔釜温度正常，塔顶温度降低，说明没有蒸发量了，会不会剩余的1/4是高沸点组分，塔釜温度不够蒸不出来？你的真空度是全程都不变还是怎么的，一般蒸发量变动会影响真空度的啊，除非你的真空抽气量远大于蒸发量
另外塔高多少？你那是间歇蒸馏吗
多谢，是全程不变的，现在我们处理了
朋友们，多谢。现在已经处理了
塔釜加热方式怎样的，温度测量点是什么位置。可能温度测量点较高，在较高液位时温度测量准确，液位低时测量点测不到低液位介质，显示的温度是在液位上方，液体的实际温度没有达到
把找的原因分析一下，这样发这个帖才有意义
组分组成问题吧。你说的：蒸不出料了，塔顶温度降低，所有操作条件正常（温度、真空度正常）。 说明轻组分蒸完了，剩下重组分了
很多细节没有说清楚，是间歇的，还是连续的？塔釜是强制循环还是自循环？
形成高沸点共沸物的可能性较大，重新加料后各组分发生变化，所以就正常了（个人观点，仅供参考）
楼主，如果问题已解决，请把原因给大家分享一下吧，比较大家都在给你分析
这样发帖，找到原因不分享，以后再发求助，无人应答是很自然的
如果蒸不出来真空度应该不正常啊，“塔顶温度降低，所有操作条件正常（温度、真空度正常）”这个矛盾了啊，温度到底正不正常呢
原因是我们真空机组不好，中间的时候突然跳了一下，真空度下降导致。切换真空机组不及时。