US 6,186,170 B1Granted

Ozone-water feeding facility

AssigneeTake-One Office, Ltd.

InventorsAkihisa Koganezawa, Yukio Akahori

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Abstract

An ozone-water feeding facility is able to feed ozone-water at a highly-accurately controlled concentration from an ozone-water producing apparatus to a remote service location even under an intermittent usage condition. The facility includes an ozone-water producing apparatus disposed remote from an ozone-water service location; a circulating pipeline extending outwardly from the ozone-water producing apparatus and returning thereto by way of a neighborhood of the service location; and a short branch pipe branched from the circulating pipeline at the above neighborhood. The ozone-water is intermittently introduced from the branch pipe, to thereby supply the ozone-water at a specific concentration to the service location. The facility may preferably include a discharge side ozone-water conditioning portion for diluting the ozone-water intermittently introduced from the short branch pipe into a specific concentration before the supply of the ozone-water to the service location.

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≦C0/2k≦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, and
V 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;
and
a 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.

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Abstract

Claims10