AUTOMATICALLY CONTROLLING METHOD OF DISSOLVED GAS IN WATER USING PRESSURE TANK

Japanese Patent JP3388465

B2

PROBLEM TO BE SOLVED: To provide a method for controlling at a low cost the amount of oxygen dissolved in water which is essential to the activity of life.
SOLUTION: A gas produced by a gas-producing device 24 is sent to a pressure tank 21 by making use of negative pressure of a pressure pump 20, dissolved in water in the tank, and then sent to a sealed tank 11. The resident water in the sealed tank 11 is circulated by a circulating pump 22, activated through a ceramic tube 14 and an infrared-irradiating device 15 which are provided in a water-circulation route, and then sprayed into the resident water in the sealed tank 11 from a gas-spraying nozzle 16. The feeding amount of the gas is adjusted by using a detection value obtained by an oxidation-reduction potential dissolved-gas detecting sensor 28, the pressure in the tank is changed by changing the rotational speed of the pressure pump 20 with a pump motor- controlling device 25, and then the pressure of the gas-spraying nozzle 16 is changed by changing the rotational speed of the circulating pump 22. The treated water is stored in a stock tank 4, which automatically adjusts the amount of water accommodated in it to a prescribed one, and used when necessary.

Masayuki Ohtsuki

JP2000386799A

March 24, 2003

December 20, 2000

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Mikasa Co., Ltd.

A01K63/04; C02F1/30; C02F1/68; (IPC1-7): C02F1/68; A01K63/04; C02F1/30

JP2000185275A
JP6342789A
JP55153875A
JP5356705A
JP819780A
JP8141561A
JP10292444A
JP6182170A
JP481692U

【文献】特許2990574(JP,B2)

Shigezo Inoue

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