Water intake screen installation and method of straining water

Details Water intake screen installation and method of straining water Water intake screen installation and method of straining water

1978-07-27

1980-01-29

Cuchlinski, Jr., William A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 82, 210158, 210160, B01D 3322, B01D 3522

Patent

active

041860918

ABSTRACT:
A water intake screen installation has a traveling water screen unit, that is positioned between a water intake and a stream of water flowing in a channel, to strain a quantity of water diverging from the channel stream towards the water intake. The screen unit includes an endless belt strainer in the form of a loop and a drive for revolving the strainer. The strainer has a screening surface, that extends in a predetermined direction of stream flow in the channel and in an upwardly direction. Means are provided for directing a backwash current, through the screening surface, towards the stream of water flowing in the channel, at an elevation below the stream surface. Material, such as refuse and aquatic life, retained on the screening surface can be dislodged by the backwash current. This current forces such material backwardly from the screening surface, into the stream of water flowing in the channel, to be carried away therewith. Also disclosed is a method of straining water from a stream with the above described screening installation that enables water to be drawn from the stream without the removal of aquatic life and refuse.

REFERENCES:
patent: 1902248 (1933-03-01), Knight
patent: 2804209 (1957-08-01), Carlton et al.
patent: 3242872 (1966-03-01), Thompson
patent: 3868324 (1975-02-01), Taylor et al.
patent: 4064048 (1977-12-01), Downs et al.

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