Vortex water flow generator, water plasma generating device, decomposition treatment device, vehicle equipped with decomposition treatment device, and decomposition treatment method

摘要

The present invention makes it possible to achieve stabilization of a water plasma spray. Provided is a vortex water flow generator (160) that forms a vortex water flow (W) for an arc discharge to pass through. The vortex water flow generator is provided with: a cylindrical part (162) wherein the vortex water flow is formed along the inner periphery; a first intermediate divider (163) and a second intermediate divider (164) protruding from the inner periphery of the cylindrical part; a rear side divider (165) formed on the back end side of the cylindrical part; and a front side divider (166) formed at the front end side of the cylindrical part. Each divider is provided with an opening part (163a - 166a) that includes the center axis position (C1) of the cylindrical part. The opening shape for each opening part is formed with a different size. The surface of the negative electrode (71) side of the intermediate dividers and the front side divider is formed into a tapered surface (163b, 164b, 166b) moving away from the negative electrode and approaching the center axis line, and circular arch shaped chamfered surfaces (163c, 164c, 166c) are formed between the tapered surfaces and the inside peripheral surfaces of the opening parts.