| 摘要 |
PURPOSE:To safely supply a uniform-quality, three-component gas mixture obtd. by mixing acetylene, hydrogen and a hydrocarbon which belongs to an LP component or is a natural gas-base hydrocarbon. CONSTITUTION:Acetylene sent from an acetylene source 1 through a pipe line 15 filled with a filler such as a fine tube of a diameter <=12.5mm, or an iron or ceramic Raschig ring of a diameter and a length each <=25mm so as not to form a void space of a diameter >=11.5mm, is homogeneously mixed in a mixer 10 with hydrogen gas and hydrocarbon respectively sent from a hydrogen source 2 and a hydrocarbon source 3 through pipe lines 16 and 17, to prepare a gas mixture, which is stored through a pipeline 18 filled with said filler in a buffering control tank 11 filled with a similar filler. Pressure of the gas to be used is kept uniform independently of the amt. of operation such as welding or fusing by many terminal torch tubes 22 attached to a connection 21, by adjusting the pressure of a gas in the pipe line 19 sent from the control tank 11 by a gas mixture flow control valve 13 and a pressure control valve 14, and sending the gas to a manifold 20. |
