Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1989-06-05
1991-03-12
Dawson, Robert A.
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
137558, 340606, 364510, 417 12, 417 36, F04B 4910, G08B 2100
Patent
active
049991175
ABSTRACT:
A monitoring method for wastewater pump station performance and output, which method is capable of detecting an operating malfunction of the wastewater pump station such as a clog or leak within the pump, piping network or valves, or an output reduction due to pump wear. A monitoring apparatus placed at the wastewater pump staion performs continual monitoring of pump output values based on rates of rise of liquid level during pump non-run periods, time periods for the pump to reduce levels and resulting volume changes and at a controlled moment compares the values with measured reference values.
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Numminen Leo
Oinonen Eero
Palmu Jukka
Tolvanen Jyrki
Varis Martti
Dawson Robert A.
Drodge Joseph
Oy E. Sarlin AB
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