Self-cleaning screen
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United States of America Patent
Stats
-
Nov 15, 1983
Issued Date -
N/A
app pub date -
Aug 12, 1982
filing date -
Aug 12, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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