Feed water pump

The feed water pump is designed as a horizontal, fifteen stages and water-cooled high pressure pump. The radiation speed of the pump is continuously controlled up to 2937 1/min by a thyristor. Therefore, the pump can be operated in wide pressure (up to 10.2 MPa) and flow rate (up to 15 m³/h) ranges. The maximum temperature of the discharge medium amounts to 70 °C.

At the suction side, the pump is connected with the depressurized blow off tank via a pipe containing an isolating valve. To guarantee a sufficient feed water quality, a filter element is installed in the suction line, as well as in the pressure line. Since the pressure side of the pump can be blocked, a bypass line with a valve is installed, which prevents an operation of the pump with volume flow rates below 10 m³/h.

To protect the pump against an overpressure, a safety valve (opening pressure 9.5 MPa), and a pressure limiter (opening pressure 9.0 MPa) are additionally installed in the pipes after the pump.

Besides, filling up of the electrical heater and test section circuit, this pump is also used for the coolant conveyance through the heat exchanger in the electrical heater circuit.

Feed water pump
Feed water pump