The invention discloses a multiple-working-condition hydraulic design method for a guide vane type
centrifugal pump. The multiple-working-condition hydraulic design method for the guide vane type
centrifugal pump mainly comprises the following steps that
specific speed solution is conducted on the design working conditions of the guide vane type
centrifugal pump, and the design working condition with the
specific speed as an intermediate
specific speed is selected and designed; multiple-scheme design is conducted on an
impeller and guide vanes through an experiment design method, and the CFturbo style is adopted;
mesh generation is conducted on a model, numerical
simulation is conducted on a scheme through CFX, the lift and the efficiency value are read, and function fitting is conducted between the lift and a flow; function fitting is conducted between the lift and the flow of a design parameter point, the coefficient of a fitting function is used as a design goal, input main geometrical parameters are used as input values, an approximate
response model is established through the
Kriging model, rapid computation is conducted on the approximate
response model through a multiple-target
genetic algorithm, and then the optimal value is obtained. By the adoption of the multiple-working-condition hydraulic design method for the guide vane type centrifugal pump, the requirement for multiple-working-condition hydraulic design of the guide vane type centrifugal pump can be met; the multiple-working-condition hydraulic design method for the guide vane type centrifugal pump can also be used for multiple-working-condition hydraulic design of other guide vane type centrifugal pumps.