| 摘要 |
PURPOSE:To obtain a small-sized electrolyzing tank with a simple construction through which a salt water containing sodium hypochlorite and having an an effective chlorine concentration of 10,000ppm or more can be continuously obtained at a high current efficiency, by using as anode the electrode disclosed in Japanese Patent Application Publication 55-35473, and specifying the construction of an electrolyzing tank. CONSTITUTION:Three insulating packings 4 whose centers are cut out so that they have a frame shape and two intermediate double-pole electrodes 2 having salt passage holes 1, 1, an end anode 3 having a hole 1 and a terminal 14, and a end cathode 7 having holes 1, 1 and a terminal 14 are alternatively put together. The ratio of the vertical side to the horizontal side with respect to the outer dimensions of the electrodes and the packings should be defined as 1:1-10. Then the assembly is sandwiched between insulating end plates 5, 5 having salt water inflow and outflow pipings 12, 13 to define three electrolysis chambers. End plates 8, 8 having through bolt holes 10 and water piping holes 11 are abutted thereto, and all of them are clamped by through bolts 9 to compose the electrolyzing tank. About 3wt% salt water is introduced via the piping 12, and as it passes through the chambers 6 in a horizontal zig-zag manner, it is electrolyzed, and the electrolyte almost free of generated gases flows through the upper and lower holes 1 and is discharged as a salt water containing sodium hypochlorite. |
