What kind of pump is used to transfer liquids to different pressure environments?
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This post was last edited by Litaotao1314 on 2010-12-14 at 10:13. The reaction takes place at an absolute pressure of 0.1 atmospheres; the resulting liquid is transported to normal pressure where the low-boiling-point substances are evaporated off, and it is then sent to an absolute pressure of 0.05 atmospheres for distillation in order to remove the high-boiling-point substances. It is desired that these steps be carried out sequentially. How should this liquid be transported? Does it not affect various pressure environments? Using a volumetric pump + flow meter + level control? I am preparing to move from pilot-scale testing to pilot plant testing, and I would appreciate some advice on how to ensure stable liquid transfer without affecting the vacuum level
This post was last edited by yandeya on 2010-12-14 at 10:55. Reactor at absolute pressure of 0.1 atm + pump + level sensor + flow rate sensor + control valve —— Evaporator at atmospheric pressure + level sensor + flow rate sensor + control valve —— Distillation vessel at absolute pressure of 0.05 atm + pump + level sensor + flow rate sensor + control valve —— Product discharge. (The traffic value is unnecessary here. Of course, if the pump itself can regulate the flow rate, then it is possible to eliminate the use of a control valve; the discharge occurs from the bottom of the container, and it is necessary to maintain the liquid level in each container so as not to affect the pressures. It can be easily achieved through automatic control!
The material is transported using a gear pump, and the entire process takes place in a vacuum, with no interference between them. The pump must be able to maintain a vacuum and transport materials continuously in such an environment; therefore, it is important to choose the right gear pump. Flow rate regulation can be achieved by changing the pump speed.