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Title:
APPARATUS AND METHOD FOR OZONE STERILIZATION OF COOLING TOWER
Document Type and Number:
Japanese Patent JP2015085211
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and method for ozone sterilization of a cooling tower that achieve both effective inhibition of Legionella bacteria propagation and corrosion inhibition of a cooling fin metal and ensure economical efficiency and safety.SOLUTION: An apparatus for ozone sterilization of a cooling tower is configured to perform the steps of: mixing water from a cooling tower water tank 7 and ozone generated in an ozonizer 1 and introducing the mixture into an ozone dissolving tank 2; dissolving gas phase ozone into a liquid phase in the ozone dissolving tank 2 to generate ozone dissolved water; supplying the ozone dissolved water to the cooling tower water tank 7; spraying the ozone dissolved water to a heat exchanger 9 from above the cooling tower water tank 7; and then returning the ozone dissolved water to the cooling tower water tank 7 and circulating the ozone dissolved water. The apparatus for ozone sterilization is provided with control means that controls so that the dissolved ozone concentration in the ozone dissolve water circulating through the cooling tower water tank 7 is in a range of 0.1-1 ppm.

Inventors:
YAMAUCHI SHIRO
NAGAO HITOSHI
FUJITA TOMIO
HASHIMOTO AKIRA
YASUDA MASAHIRO
Application Number:
JP2013222972A
Publication Date:
May 07, 2015
Filing Date:
October 28, 2013
Export Citation:
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Assignee:
TADA DENKI KK
International Classes:
C02F1/50; B01F1/00; B01F15/02; C02F1/78; F28G13/00
Domestic Patent References:
JP2010014346A2010-01-21
JPH08299972A1996-11-19
JPH11114580A1999-04-27
JP2000157985A2000-06-13
JP2003166798A2003-06-13
JP2008241146A2008-10-09
JPH04104883A1992-04-07
JP2003326275A2003-11-18
JPH07232158A1995-09-05
JP2010014346A2010-01-21
JPH08299972A1996-11-19
JPH11114580A1999-04-27
Foreign References:
US5145585A1992-09-08
US5145585A1992-09-08
Attorney, Agent or Firm:
Masuo Oiwa
Kenji Yoshizawa



 
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