Projects / Pumps / Multi-stage pumps


1) Multi-stage axial-flow pump (hd)
2) Multi-stage axially split centrifugal pump (re, opt, rd)
3) Multi-stage barrel casing centrifugal pump (re, opt)
4) Multi-stage ring section centrifugal pump (hd, rd, ss)
5) Multi-stage vertical semi-axial pump with inducer (re, opt, cav)




2)
Machine type:
Multi-stage axially split centrifugal pump – “back-to-back” execution.

Application:
Pump in process or petrochemical industry.

Project extent:
Hydraulic design of the whole pump.
Checking of rotordynamic characteristics.

Main goals:
Achieve a competitive pump efficiency with stable Q-H characteristic and high dimensionless pressure number PSI.
Minimize outer dimensions and consequently the pump weight.

Gallery

3-D geometry of a pump part Flow conditions in the connection channel Flow conditions at the impeller inlet Velocity vectors in the impeller and next stage spiral casing Velocity vectors in the impeller and last stage spiral casing Response amplitude versus shaft axial location at nominal pump speed