The invention relates to an automatic gas distribution device for
mixed gas and a method thereof, and belongs to the technical field of electronic
mixed gas. The gas distribution device comprises a filling pipeline, a second gas conveying pipeline, a first gas conveying pipeline, a second gas control valve, a first gas control valve, a
pressure sensor in front of a regulating valve, the regulating valve, a flow meter, a
pressure sensor behind the regulating valve, a filling control valve, a
mixed gas container, an electronic balance, a
vacuum pump pipeline, a
vacuum pump, a vacuum control valve and a temperature sensor; the gas
distribution method is completed by adopting the gas distribution device. Flow control is carried out on gas introduced into a filling pipeline, and the gas flow is adjusted to the set flow according to specific requirements through a DCS according to the front pressure and the rear pressure of the regulating valve, so that the accuracy of the content of each gas in the configured mixed gas can be improved; according to the gas distribution device and method, the mixed gas can be completely and automatically prepared, and the content of each gas component in the mixed gas is accurately controlled.