Researches for the Constitution of High Vacuum Exhaustion System.

Study on Molecular Distillation Apparatus.

Abstract

One of the essential factors which should be taken into consideration in designing and constructing a High Vacuum Chemical Apparatus is the problem of gas exhaustion. We present here a fundamental study on the constitution of an exhaustion system in connection with a Molecular Distillation Apparatus.
First, taking an oil rotary pump, as an example, we analysed the mechanism of exhaustion of a vacuum pump which is an element of exhaustion system, and then went on discussing the whole operation of said exhaustion system, which is combined, in series, with vacuum pumps and pipes. Using the above results we drew up an Exhaustion System Chart which is intended to make almost every factor of the system clear at a glance. It is hoped this chart will be of use in designing an exhaustion system and in calculating the balance of gas in various operations.