GAS ANALYZER Russian patent published in 1999 - IPC

FIELD: analytic instrumentation. SUBSTANCE: given gas analyzer can be used as chromatographic device in petroleum refining, petroleum and other industries to measure content of microimpurities. It includes gas system made of air preparation unit, selectors of gas flows, sampling element, unit of columns, detector unit, thermostat, unit for control and signal processing. Unit of columns is manufactured in the form of one absorption and number of separation columns placed in parallel. Detector unit has row of gas detectors whose number corresponds to number of separation columns. Air preparation unit, sampling element, units of columns and detector are located in thermostat. In addition gas analyzer has electric valves whose number equals 5 used as selectors of gas flows and number of separation columns in unit of columns equals 3. Unit for control and signal processing is microprocessor. EFFECT: raised fastness and simplified design of gas analyzer with increased operational reliability. 4 cl, 1 dwg, 1 tbl