酯化反应自动分水器原理图解
发布日期：2023-10-30
阅读量：1396
生产醇酸树脂、聚酯树脂等都会有反应水生成，而酯化反应是一个可逆的反应，需要不断将生成的反应水排出，酯化反应才能正常进行。大部分的酯化反应装置都会配备一套自动分水的油水分离器，反应过程中需利用溶剂和水的共沸将水蒸发带出，通过冷凝器冷却后，再进入到分水器中分离。
1，自动分水器原理
自动油水分离器将分水罐用挡板隔开分成2个区（缓冲区和分离区），油水混合物在缓冲区进行缓冲，再平稳地扩散进入分离区进行溶剂和水的分离。再利用溶剂和水的密度差设计确定了恒定的油、水界面，从而做到水多了排水，溶剂多了排溶剂，实现溶剂自动回流和自动排水的功能。
分水器自动排水的设计原理是排水管为一条内插到分水器底部的管道，利用液体的静力学原理，出水管和分水罐可视作一个连通器，分水器上层是溶剂，下层是水（可以通过视镜观看分层界面）。由于油水两相界面以下出水管的内外都是水，密度相同，其产生的静压强也相同；界面以上，出水管内是水，而管外界面以上是溶剂，密度不同，根据静力学原理，就会有不同的液柱高度。
根据酯化反应溶剂和水的密度，设计成出水管和出油管的液面高度不一致，而且有恒定的差值，从而实现油多出油，水多出水的功能。一般使用的溶剂密度比水小，设计出水的管口比出溶剂的管口低。
2，自动分水器分水原理图解
自动排水原理：ρ水•h0=ρ水•h1+ρ溶•h2
通过原理讲解和图示，不知道你看明白了没？
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