MIXING FLOWING GASES UNDER PRESSURE USING ANALYSER, FLOW METER AND CONTROLLER

摘要

as is mixed by blending two or more gases in lines 2, 4, 6. Periodically analyser F measures the rate of flow of the gas mixture. Analyser A measures the corresponding instantaneous concentration of gases. Using controller C the composition of accumulated quantity of gas mixture that has passed this point is thus determined periodically. The rate of flow of one or more of the incoming gases is varied by valves 8, 10, 12 so as to achieve the desired result.