Process and a device for determining the erosion caused by cavitation in components through which fluid flows

摘要: The erosion caused by cavitation in components through which fluid flows, such as, for example, a pump (1), can be derived detecting the vibration casing. fluid-borne noise is transferred to casing and detected sensor (7b) of structure-borne measuring device (7a), amplified, filtered digitalized signal processing unit (10) transmitted computer (11). Further data detection devices as outlet pressure (6), suction (8), temperature (9) or revolution counter (4) enable (11) example calculate flow rate correlation between rate. values determined displayed via an output (13); if boundary value preset input (12) exceeded, (13) activates warning, example.