| 摘要 |
<p>A centrifugal slurry pump casing which reduces localised wear behind the cutwater caused when the pump operates at less than the best efficiency point flow rate. By reducing the throat area (13) of the casing (12) in the region of the cutwater (14) to 30-70% of the discharge neck (17) at the discharge flange (18), recirculation and vortexing due to slurry re-entering the volute is substantially reduced.</p> |
