Installation of a drain pump for the turbine inspection chamber.
Verbund Austrian Hydro Power AG
Sonnek Engineering GmbH (Tsurumi partner)
For inspection work the turbine must be completely drained at the intake and discharge including the headrace tunnel. New turbines are integrated in the collector shaft. Depending on the inspection cycle, the unfiltered water from the Danube must be pumped away there.
Pump requirement: 300m3/h at 3bar. Until now clean water submersible pumps were implemented which were always at risk of silting.
Implementation of a type LH845 high-pressure pump with a 45kW rating. This conveys the existing pressure line at a pressure of 2.8bar 5m3/min.
Tsurumi contractors' pumps are perfectly suited for dirty media which means that they can also be operated after flooding (extreme silting).