Optimization of the rotor-dynamic behaviour of a balancing device using honeycomb profiles in highpressure boiler feed pumps

摘要

Rotor dynamic stability plays a crucial role in high-pressure boiler feed pumps because it directly affects availability. The major facotr of influence are rotor gaps, e.g. those between impeller and pump casing, balancing device and casing as well as those of the journal bearings. They improve the damping characteristics and can therefore reduce the radial displacement of the shaft.