Patent ID: 9140465
Filing Date: 2015-09-22
Classification: C02F,C25B,F24D,F24H

Abstract:
1. An electrolysis device used in a water heater including a water heat exchanger for heating water, the electrolysis device comprising: a container including an inlet and an outlet for water; a first electrode pair including a first electrode and a second electrode disposed in the container, the first electrode being positioned a first distance from the second electrode; a second electrode pair including a third electrode and a fourth electrode disposed in the container, the third electrode being positioned a second distance from the fourth electrode; and a power supply that applies a voltage to each of the electrode pairs, wherein the electrolysis device is configured such that water flowing into the container from the inlet flows from an upstream side to a downstream side in the container and flows out from the outlet, the first electrode pair is arranged on the upstream side than the second electrode pair, in order to suppress a decrease in current density due to electrolyte concentration in the water in the second electrode pair arranged on the downstream side than the first electrode pair, the current density in the second electrode pair is adjusted, the first electrode pair and the second electrode pair are independent from each other, and the second distance between the electrodes of the second electrode pair is smaller than the first distance between the electrodes of the first electrode pair.