Patent ID: 6186170
Filing Date: 2001-02-13
Classification: C01B,C02F,Y10S,Y10T

Abstract:
An ozone-water feeding facility comprising:an ozone-water producing apparatus for dissolving ozone gas in water to produce ozone-water, and for storing the ozone-water, said ozone-water producing apparatus being operable to dissolve ozone gas in water so as to compensate for an amount of ozone lost during circulation of the ozone-water;a circulating pipeline extending from said ozone-water producing apparatus to a vicinity of an ozone-water service location remote from said ozone-water producing apparatus;a circulating pump for press-feeding the ozone-water from said ozone-water producing apparatus into said circulating pipeline so as to circulate the ozone-water through said circulating pipeline, said circulating pump being operable such that a value K defined by K={L/(V/S)}/T satisfies a requirement expressed by:C1.ltoreq.C0/2.sup.k.ltoreq.C2,wherein:T is a half-life of ozone in the ozone-water,C0 is a concentration of the ozone-water at an outlet of said ozone-water producing apparatus,C1 is a desired lower concentration limit of the ozone-water at the vicinity of the ozone-water service location remote from said ozone-water producing apparatus,C2 is a desired upper concentration limit of the ozone-water at the vicinity of the ozone-water service location remote from said ozone-water producing apparatus,L is a length of said circulating pipeline from the outlet of said ozone-water producing apparatus to the vicinity of the ozone-water service location remote from said ozone-water producing apparatus,S is an average effective cross-sectional area of said circulating pipeline in the region between the outlet of said ozone-water producing apparatus and the vicinity of the ozone-water service location remote from said ozone-water producing apparatus, andV is an average flow rate of the ozone-water passing through said circulating pipeline in the region between the outlet of said ozone-water producing apparatus and the vicinity of the ozone-water service location remote from said ozone-water producing apparatus, wherein the flow rate is expressed in volume per unit time; anda branched discharge passage for discharging the ozone-water from said circulating pipeline so as to put the ozone-water in service, said branched discharge passage branching off from said circulating pipeline.