Self-cleaning screen

Details Self-cleaning screen Self-cleaning screen

1982-08-12

1983-11-15

Hart, Charles N.

Liquid purification or separation

Processes

Separating

210170, 210162, 405 82, 119 2, B07B 106

Patent

active

044154623

ABSTRACT:
A self-cleaning screen and method for screening water for hydraulic turbine intake diversions is disclosed. A check dam is established across a river on the downstream side of a side channel weir which is at a lower elevation than the dam. A fish transport trough is laterally spaced from the weir at a lower elevation and has an inlet upstream of the weir and an outlet downstream of the dam. A screen having a concave profile is connected between the weir and the trough to remove debris from water flowing over the weir. Water flowing through the screen enters a separate channel under the screen for diversion to a hydraulic turbine inlet water application. Intermittent surges of water over the weir flush debris off the edge of the screen into the trough to clean the screen.

REFERENCES:
patent: 4260286 (1981-04-01), Buchanan

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