Methods of detecting and correcting spray header malfunctions
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United States of America Patent
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Jun 12, 1990
Grant Date -
N/A
app pub date -
May 20, 1988
filing date -
May 20, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of detecting spray header valve and nozzle malfunctions, in a spray header including plural nozzles each having its own control valve, by supplying the spray header with liquid at a constant pressure head through a conduit while opening and closing the nozzle valves one at a time, and measuring the flow rate through the conduit each time one of the valves is open and when all the valves are closed. In response to detection of a malfunction at a particular nozzle, the valves of one or more adjacent nozzles are adjusted so that the adjacent-nozzle flow rates compensate for the malfunction, for example to maintain a desired cooling pattern across a surface being cooled by the spray header notwithstanding the malfunction at the particular nozzle.
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