Patent ID: 9062996
Filing Date: 2015-06-23
Classification: B67D,C23C,G01F

Abstract:
1. A device for supplying liquid material inside a filling container, wherein the device is provided with: a filling container into which a predetermined amount of liquid material is filled, a carrier gas introduction flow path through which carrier gas accompanying the liquid material inside the filling container is introduced, a liquid material supply flow path through which liquid material is supplied by being accompanied by the carrier gas, a constant quantity feeder provided on an upper part of the filling container and having a set internal volume, a liquid material refill flow path for refilling with liquid material, having one end connected to the constant quantity feeder, pipe La having one end connected to a lower part of the constant quantity feeder and the other end immersed inside the liquid layer of the liquid material inside the filling container, pipe Lb having one end connected to the upper part of the constant quantity feeder and the other end located above liquid level inside the filling container, on-off valve Va located between the constant quantity feeder and pipe La, on-off valve Vb located between the constant quantity feeder and pipe Lb, a control unit adapted to introduce carrier gas into the filling container and supply liquid material by being accompanied by the carrier gas and, at the same time, adapted to fill the liquid material into the constant quantity feeder by opening the liquid material refill flow path and refill into the filling container the liquid material inside the constant quantity feeder by simultaneously opening on-off valves Va and Vb, a branch flow path Lc branching the flow path between the constant quantity feeder and on-off valve Vb, flow path Ld which enables inert gas supply, connected to the branch flow path Lc, and on-off valve Vc located between one end of flow path Ld and branch flow path Lc, wherein the device supplies inert gas to flow path Ld upon refilling with liquid material and, at the same time, wherein the liquid material remaining inside the constant quantity feeder, pipe La, and pipe Lb is refilled into the filling container while on-off valve Vc is open.