Multiobjective Optimization Design and Performance Prediction of Centrifugal Pump Based on Orthogonal Test

Table 1

The main structural parameters of the impeller.

Parameters	Calculation results	Final results
Impeller inlet diameter,	59.5	60
Impeller outlet diameter,	182.6–187.6	190
Impeller inlet width,	13.5	14
Impeller outlet width,	4.5–5	5
Blade inlet angle,	23–40	30
Blade outlet angle,	16–40	30
Blade thickness,	2.4	3
Blade number,	6.25	6
Cape angle,	90–130	120