GAS PASSAGE WAY STRUCTURE

摘要

PURPOSE: A gas passage structure is provided to efficiently draw in and out and to substitute gas by deforming the lower shaper of a gas passage structure. CONSTITUTION: A gas passage structure(10) comprises a pipeline structure(100) and a pressure control valve(700). The pipeline structure penetrates one side of a ceiling of a tank(1) in a vertical direction. The pressure control valve is connected to the pipeline structure to control the internal pressure of the tank. The flow of gas drawn in and out through the pipeline structure is diagonally formed. In the pipeline structure, one main pipeline(110) is branched to first pipelines(120) and second pipelines(130). The gas in the tank is discharged from the main pipe to the outside of the tank through the first pipes and the second pipes.