ABSTRACT

In the case of normal operation, however, the discharge header pressure is more or less equivalent to the pressure developed by the pump under rated capacity conditions. When the pump is started and brought up to full speed, it will raise the check valve from its seat and will start discharging into the line in parallel with the pump or pumps already in operation. Before a permanent solution was reached, it was necessary to provide temporary means to permit operation of the standby pump without the danger of its being shut down by the thermal overload protection of the auxiliary oil pump motor. Integration of the boiler feed pump into an automated steam power plant presents no unsurmountable problems. It requires merely a thorough understanding of the various factors that can affect the operation of the pump and a logical analysis of the operating, corrective, and protective controls that will assure trouble-free operation.