KSB pumps for new Dutch power station

Frankenthal, Germany – This September KSB AG is supplying boiler feed pumps for the newly built A and B units at the Dutch coal-fired power station at Eemshaven port, about 30km to the north-west of Emden.

The RWE Power AG plant, which can be partially fuelled by biomass, is due to begin operation by 2013. With a gross capacity of 1,600MW and an efficiency of more than 46%, it will be one of the world’s most modern power stations, according to the Germany energy group.

 KSB’s order, which is worth several million Euros, is for two units, each consisting of a turbine-driven main boiler feed pump, a geared booster pump, a minimum flow system and sound insulating hoods. The total weight of each unit is upwards of 60 tonnes.

The pumps are driven by speed-controlled steam turbines, whose speed can be varied depending on the actual need for feed water between 2,400 and 4,680rpm, with the possibility of running up the speed to 5,400rpm for short periods of time.

 Depending on the operating point, each pump has a maximum drive rating of 38,265 kW, making these pumps some of the most powerful boiler feed pumps ever built in the world.

The flow rate of each pump will come to about 2,500 cubic metres per hour. The planned discharge pressure will be about 350 bar and the temperature of the fluid pumped will be around 190ºC.

The pumps are classified as so-called “100 percent pumps”. This means that there will be no redundant pumps and the main pumps will be equipped with temperature monitoring and vibration sensors. These will inform the plant operator about the condition of all technically relevant components at all times.

Some of the fuel used to fire the new power station can be replaced with biomass. The station, scheduled to go online starting in 2013 with a gross power output of 1,600MW.

Frankenthal-based KSB has previously supplied many pumps and valves for the same energy supply company’s numerous other power stations.

Photo Caption: Six-stage boiler feed pump type CHTD similar to the ones to be supplied to Eemshaven, Netherlands.