MODE OF PRODUCTION OF A GAS FLOW WITH CONSTANT CONCENTRATIONS AND AN ARRANGEMENT FOR ITS EXECUTION Russian patent published in 2007 - IPC G01N30/00 G01N30/06 

FIELD: the invention refers to the field of gas industry.

SUBSTANCE: the mode is executed by way of successive bubble contact of a gas flow with two portions of solution of volatile matters in low-volatile solvent. The received gas flow is additionally mixed with a flow of an inert gas-reducer. The consumption of the inert gas-reducer passing through two portions of the solution is changed depending from concentration of volatile matters in the gas flow at the withdrawal out of the second portion of the solution measured with a quality analyzer. The arrangement for execution of the mode has in-series connected a capacity and a thermostatically controlled mixer filled with initial solution of volatile matters in low-volatile solvent. Two throttles of fine regulation are connected with a line for feeding an inert gas-reducer with a regulator of consumption. The outlet of one of the throttles is connected with the line for withdrawal of the gas flow saturated with volatile matters out of the mixer before the quality analyzer located in it. The outlet of the second throttle is connected to the capacity with initial solution. The quality analyzer is switched in a feedback circuit having a block of regulation of consumption of the inert gas-reducer coming into the capacity and the mixer.

EFFECT: increases time of supporting constant concentrations of volatile matters in a gas flow.

2 cl, 1 dwg, 1 tbl