Title:
WATER QUALITY CLARIFICATION EQUIPMENT
Document Type and Number:
Japanese Patent JP3812235
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a water quality clarification equipment capable of clarifying water by generating ultrasonic wave by specially using water currents generated by a boat or craft in an equipment for killing red tide, green powder or algae generated in sea, lakes and marshes.
SOLUTION: An impeller 11 is suspended in a cylindrical casing 9 having an cylindrical opening 9 with a bottom opening 9a in water, this casing 9 is arranged in a boat or a craft 2a, a rear end portion of a suction pipe 13 opened in a propelling direction of the boat or craft 2 is coupled to the casing 9 in rotation tangent direction of the impeller 11, water flowed to the tangent direction is turned into a negative pressure by increasing the flowing speed by the rotation of the impeller 11, ultrasonic wave is generated by the cavitation thereby killing the red tide and others. Also, the impeller 11 is set in two stages, and a suction pipe 13 is coupled to the peripheral wall of the casing 9 near the upper portion of the impeller 11, then the velocity in the casing 9 is increased, a pressure decrease can be promoted. Then, a throttle valve 14 is attached to the suction tube 13 and water volume flowing into the casing may be restricted in response to the traveling speed of the boat or craft 2.
Inventors:
Eiichi Ishigaki
Application Number:
JP25264999A
Publication Date:
August 23, 2006
Filing Date:
September 07, 1999
Export Citation:
Assignee:
Ishigaki Co., Ltd.
International Classes:
E02B15/04; B63B35/00; C02F1/36; (IPC1-7): E02B15/04; B63B35/00; C02F1/36
Domestic Patent References:
| JP9314139A | ||||
| JP59138794A | ||||
| JP1231987A |
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