Pumps – Alternate series or parallel operation of plural pumps
Patent
1991-03-06
1992-08-04
Bertsch, Richard A.
Pumps
Alternate series or parallel operation of plural pumps
417 2, 417 3, 417 36, F04B 4906, F04B 2306
Patent
active
051353610
ABSTRACT:
A water flow system for collecting and discharging waste water, storm water and the like includes a water pumping station into which water is delivered through an inflow main and from which water is pumped through a water discharge main. The pumping station has a water collection well, a pair of water pumps and a conduit arrangement by which the suction side of each pump is communicated with the well and the pressure side of each pump is communicated with the discharge main. A secondary conduit also communicates the pressure side of one pump with the suction side of the other pump. A control system is operative to actuate one of the pumps for normal pumping conditions and to actuate both pumps during periods of heavy water inflow to the station, the secondary conduit providing serial flow of water through the pumps under such conditions to substantially increase the water outflow rate from the pumping station in comparison to conventional parallel combined operation of the pumps.
REFERENCES:
patent: 1049894 (1913-01-01), Merrill
patent: 1059409 (1913-04-01), Thomas
patent: 1523342 (1925-01-01), Hart
patent: 2218565 (1940-10-01), Vickers
patent: 4408452 (1983-10-01), Isunoda
patent: 4437811 (1984-03-01), Iwata et al.
Bertsch Richard A.
Gotherman William W.
Scheuermann David W.
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