Water treatment device

Patent metadata

Field	Value
Publication number	US-9334179-B2
Application number	US-201314430999-A
Country	US
Kind code	B2
Filing date	Sep 24, 2013
Priority date	Sep 28, 2012
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A water treatment system includes a water treatment unit and insulators. The water treatment unit is provided in an intermediate portion of a water passage allowing target water to flow, and produces bactericidal factors in the target water utilizing a discharge. The insulators are provided at an inflow side and an outflow side of the water treatment unit, respectively, and electrically insulate the water flowing to and out of the water treatment unit from the water treatment unit. The insulator at the inflow side sprays the target water to insulate the water. The insulator at the outflow side allows the target water to fall down from the water treatment unit to insulate the water.

First claim

The invention claimed is:

1. A water treatment system comprising:
a water treatment unit configured to electrically treat water, wherein
the water treatment unit includes
a first lane and a second lane, which are separated by an electrically insulating plate-like divider, and through which water flows,
a first electrode being in contact with the water of the first lane,
a second electrode being in contact with the water of the second lane,
a power source applying a voltage to the first and second electrodes, and
a through-hole penetrating the divider in a thickness direction and forming a current path between the first and second electrodes through the water,

water is stored in each of the first and second lanes,
the through hole is positioned within the water stored in each of the first and second lanes,
the water treatment system further includes
an inlet through which water introduced to the water treatment unit and divided into the first and second lanes,

an inlet insulator electrically insulating water flowing through the inlet from water flowing through the first and second lanes,
an outlet through which water merged after being flown out of the first and second lanes flows, and
an outlet insulator electrically insulating water flowing through the outlet from the water flowing through the first and second lanes.

2. The water treatment system of claim 1 , wherein
the inlet insulator includes a nozzle configured to drop the water flowing through the outlet to each of the first and second lanes.

3. The water treatment system of claim 1 , wherein the inlet insulator includes a spray unit configured to spray the water flowing through the outlet to each of the first and second lanes.

4. The water treatment system of claim 1 , wherein the outlet insulator allows the water flowing out of the water treatment unit to the water passage to fall down as drops from each of the first and second lanes.

5. The water treatment system of claim 2 , wherein
the outlet insulator allows the water flowing out of the water treatment unit to the water passage to fall down as drops from each of the first and second lanes.

6. The water treatment system of claim 3 , wherein the outlet insulator allows the water flowing out of the water treatment unit to the water passage to fall down as drops from each of the first and second lanes.

7. The water treatment system of claim 1 , wherein
the divider further includes a discharge member made of an electrically insulating material,
the through-hole is positioned in a center of the discharge member, and
the discharge member increases the density of current in the current path between the first and second electrodes such that a current flowing between the first and second electrodes through the through-hole generates bactericidal factors in the water by generating an electric discharge inside a bubble produced in the through hole of the divider.

8. The water treatment system of claim 7 , wherein the bubble in the through hole is produced by water in the through hole being vaporized by heat generated from the current flowing between the first and second electrodes through the through hole.

Assignees

• Daikin Ind Ltd

Inventors

• Nishimura Masaya
• Kagawa Kenkichi
• Yamaguchi Sachiko
• Ohdou Tsunahiro
• Saitou Tomoki

Classifications

• C02F1/46

  by electrochemical methods · CPC title

• B01D53/32

  by electrical effects other than those provided for in group B01D61/00 · CPC title

• B01D53/326

  in electrochemical cells · CPC title

• C02F2201/46105

  Details relating to the electrolytic devices · CPC title

• C02F2303/04

  Disinfection · CPC title