Title:
PRESSURIZED WATER MAKING APPARATUS
Document Type and Number:
Japanese Patent JP3840885
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pressurized water making apparatus capable of making and supplying stable pressurized water.
SOLUTION: An outer cylindrical pipe 30 and an inner cylindrical pipe 32 are arranged in the hermetically closed pressurized water take-out pipe 28 having a hemetically closing lid 34 attached to the upper end part thereof to form a falling flow passage 46, a first rising flow passage 48 and a second rising flow passage 50. Treated water is guided to the bottom part of the pressurized water take-out pipe and compressed air ejected from an air nozzle 52 is dissolved in the treated water. The treated water in which air is dissolved is reduced in pressure in the process rising through the second rising flow passage 50 to generate fine air bubbles and this treated water is taken out of a pressurized water take-out port 36 as pressurized water. The take-out quantity of the pressurized water is controlled by the opening degree of a flow rate adjusting valve 26. Undissolved air floats through the first rising flow passage 48 to be stored in the upper part of the hermetically closed pressurized water take-out pipe 28 to pressurize the treated water in a hermetically closed tank 22. By this constitution, the dissolvability of air is enhanced.
Inventors:
Norio Tanei
Akihiko Ogawa
Hirotaka Horiuchi
Yasuyuki Yagi
Akihiko Ogawa
Hirotaka Horiuchi
Yasuyuki Yagi
Application Number:
JP2000267906A
Publication Date:
November 01, 2006
Filing Date:
September 05, 2000
Export Citation:
Assignee:
Hitachi Plant Technology Co., Ltd.
International Classes:
C02F1/24; B01F1/00; B01F3/04; (IPC1-7): C02F1/24; B01F1/00; B01F3/04
Domestic Patent References:
| JP9057245A | ||||
| JP56056220A | ||||
| JP4187282A |