Water treatment unit

Abstract

Provided is a water treatment equipment which sterilizes water fed from a water supply inlet of a water supply system in a building etc. efficiently by electrolysis treatment to keep the water quality while keeping the airtightness of a water supply tank and preventing a gas storage problem.An automatic gas vent valve 13 for discharging a gas generated by the electrolysis treatment to the outside of a treated water passage 100 is connected onto the downstream side from an electrolysis treatment mean 11 of the treated water passage 100 connected with a water supply tank 2, and a function for accelerating the inflow of gas into the automatic gas vent valve 13 by stopping operation for a while is given. The gas generated by the electrolysis treatment can be collected in the automatic gas vent valve 13 by buoyancy of the gas during temporary stopping of the apparatus, and discharged outside of the treated water passage 100, which can surely prevent the gas from being stored in the water supply tank 2 while keeping the airtightness of the water supply tank 2.

Description

technical field [0001] The present invention relates to a water treatment device for sterilizing water stored in, for example, a water supply tank installed on the roof of a building, or various water tanks such as pools and bathtubs. Background technique [0002] For example, in buildings such as office buildings and apartments, water supply channels are generally provided as water supply facilities for supplying water to multiple water supply outlets (water supply faucets, water supply parts of water heaters, etc.) installed on each floor. Water taken from a water pipe is temporarily stored in a water supply tank installed on the roof of a building, and then supplied from the water supply tank to each water supply port. [0003] In the above-mentioned water supply facilities, maintaining the quality of water has traditionally depended on the sterilizing power of chlorine added to tap water in a tap water treatment plant. [0004] However, in many cases, regular maintenanc...

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Problems solved by technology

[0006] However, the methods and devices disclosed in the above documents have the problem of periodically replenishing the chlorine supplier with an irritating chlorine agent such as an aqueous solution of sodium hypochlorite, which takes time and effort and increases operating costs.

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