Method and device for dynamic gas mixing and filling under pressure within wide range

摘要: The invention provides a method and device for dynamic gas mixing filling under pressure within wide range. comprises the steps that SF6 sample are mixed control of mass flow controller, concentration is reduced; diluted controller; subjected to secondary dilution finally, injected into standard cylinder. According device, an cylinder connected with through main circuit, circuit sequentially provided reducing valve, first electromagnetic static mixer, second third buffer tank, proportioning valve diaphragm press; also input end mixer fourth controller fifth cylinders all sixth controller.