IDP Boiler Feed
Application: Boiler Feed
Pump Details: IDP 4x12 WXH 11-Stage
Pump Type: Ring Section
After repeated failures, a Cogen plant sent their ring section pump to Hydro for evaluation. Hydro's inspection determined that the cause of failure was contact between rotating and stationary components in radial and axial directions, as well as axial misalignment between rotating stationary components. Hydro tightened the fit between the covers in addition to the fit between the shaft and the impellers to re-establish concentric running clearances throughout the entire length of the pump. Hydro also manufactured a balancing disc with a tapered face to eliminate the problem of contact between the rotating and stationary faces. Rotor centralization was then performed to ensure proper alignment between rotating and stationary hydraulic passageways.
By applying the technology and engineering standards which Hydro has developed through many years of experience, we believe we can improve the mean-time-between-repair for many of the installed ring section pumps currently in operation at Cogeneration plants.