Electrolysis device

Abstract

An electrolysis device of the present invention includes an electrolysis unit. The electrolysis unit includes a channel for fluid to be treated, at least one electrolysis electrode pair, a flow inlet, and a flow outlet. The electrolysis electrode pair is disposed so as to incline with respect to a vertical direction and includes an upper electrode and a lower electrode disposed so as to face each other. The channel for fluid to be treated is disposed so that a fluid that has flowed in from the flow inlet flows through an interelectrode channel between the upper electrode and the lower electrode from a lower side to an upper side and flows out from the flow outlet.

1 . An electrolysis device comprising:
 an electrolysis unit,   wherein the electrolysis unit includes a channel for fluid to be treated, at least one electrolysis electrode pair, a flow inlet, and a flow outlet,   the electrolysis electrode pair is disposed so as to incline with respect to a vertical direction and includes an upper electrode and a lower electrode disposed so as to face each other, and   the channel for fluid to be treated is disposed so that a fluid that has flowed in from the flow inlet flows through an interelectrode channel between the upper electrode and the lower electrode from a lower side to an upper side and flows out from the flow outlet.   
     
     
         2 . The electrolysis device according to  claim 1 , wherein the electrolysis electrode pair is disposed so as to have an inclination angle of more than 0° and less than 50° with respect to the vertical direction. 
     
     
         3 . The electrolysis device according to  claim 1  or  2 , wherein the channel for fluid to be treated includes an upstream-side bent channel located close to an end of the interelectrode channel on an upstream side or a downstream-side bent channel located close to an end of the interelectrode channel on a downstream side. 
     
     
         4 . The electrolysis device according to any one of  claims 1  to  3 , further comprising means for supplying, by force, a fluid to the channel for fluid to be treated,
 wherein the electrolysis electrode pair is disposed so that an electrode reaction that generates gases proceeds at the lower electrode and the upper electrode, and 
 an amount of a gas generated at the lower electrode and released outside is substantially larger than that of a gas generated at the upper electrode and released outside. 
 
     
     
         5 . The electrolysis device according to any one of  claims 1  to  4 ,
 wherein the upper electrode serves as an anode, and 
 the lower electrode serves as a cathode. 
 
     
     
         6 . The electrolysis device according to any one of  claims 1  to  5 , wherein the lower electrode has an electrode surface area larger than that of the upper electrode. 
     
     
         7 . The electrolysis device according to any one of  claims 1  to  6 , further comprising a dilution unit,
 wherein the fluid is an aqueous solution, 
 the electrolysis electrode pair is disposed so that a hypochlorite ion is electrochemically produced from a chlorine-containing compound contained in the aqueous solution, 
 the aqueous solution at the flow outlet contains 4000 ppm or more of a hypochlorite ion on a weight basis, 
 the dilution unit is disposed so as to produce a diluted solution of the aqueous solution that contains a hypochlorite ion and is discharged from the flow outlet, and 
 the diluted solution has a pH of 7.5 or less. 
 
     
     
         8 . The electrolysis device according to any one of  claims 1  to  3 ,
 wherein the channel for fluid to be treated is disposed so that a fluid is supplied to the channel for fluid to be treated by convection, 
 the electrolysis electrode pair is disposed so that an electrode reaction that generates gases proceeds at the lower electrode and the upper electrode, and 
 an amount of a gas generated at the upper electrode and released outside is substantially larger than that of a gas generated at the lower electrode and released outside.