Double-suction multi-flow-channel impeller and design method thereof

Abstract

The invention relates to a double-suction multi-flow-channel impeller and a design method thereof, in particular to a hydraulic design method of a centrifugal double-suction multi-flow-channel impeller.Important impeller design parameters such as the inlet diameter Dj1 of an inner impeller body, the inlet diameter Dj2 of an outer impeller body, the blade length L1 of the inner impeller body, the blade length L2 of the outer impeller body, the inlet blade deflection angle theta 11 of the inner impeller body, the inlet blade deflection angle theta 2 of the outer impeller body, the outlet blade deflection angle theta 12 of the inner impeller body, the outlet blade deflection angle theta 22 of the outer impeller body, impeller inlet edge curvature rho1 and impeller outlet edge curvature rho2, of the impeller are determined through formulas.By means of check of production practice that the design efficiency and design level of a double-suction multi-flow-channel pump are improved greatly, design cost and risks are reduced, and the double-suction multi-flow-channel pump produced according to the design has good use performance and high economic benefits.

Description

technical field [0001] The invention relates to a double-suction multi-channel impeller and a design method thereof, in particular to a hydraulic design method of a centrifugal double-suction multi-channel impeller. Background technique [0002] Centrifugal pump is an important pump product in fluid machinery. It has the advantages of stable pressure and flow, light weight, compact structure, convenient and reliable operation and low maintenance cost. Due to its unique advantages, low specific speed centrifugal pumps have been widely used in various industries and fields. [0003] Double-suction multi-channel impeller pumps belong to the scope of centrifugal pumps, and are widely used in actual production and engineering because of their high head and large flow. As the core component of the water pump, the impeller plays a decisive role in many performance parameters of the pump. The existing double-suction and multi-channel impeller centrifugal pumps have relatively larg...

AI Technical Summary

Problems solved by technology

The existing double-suction multi-channel impeller centrifugal pumps have relatively large vibrations, poor diversion performance, uneven impact of liquid outflow, and poor fluidity, which cannot well achieve the purpose of conveying media.

[0004] In view of the above-mentioned deficiencies, the inventor invented "a double-suction multi-channel impeller and its design method", which not only provides a systematic and accurate design method for the impeller parameters of the double-suction multi-channel impeller pump, but also solves the problem of double-suction and multi-channel impeller pump impeller. The problem of large vibration and poor fluidity of the double-suction multi-channel impeller pump enhances the reliability of the double-suction multi-channel impeller pump, improves the hydraulic efficiency of the double-suction multi-channel impeller pump, and prolongs the service life of the pump

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