Optimal Design of Diameter Reduction for Progressive Cavity Pumps based on Interference Values

Le résumé fourni par la source

Abstract This study addresses the service life reduction issue in progressive cavity pumps (PCPs) caused by increased interference values by proposing an optimized design method incorporating a variable‐diameter rotor structure. Through sensitivity analysis of interference values, critical vulnerable areas of the pump were identified, and the design theory of the variable diameter rotor was proposed. Finite element simulation results demonstrate the effectiveness of this approach, with particularly notable optimization effects under high‐speed and high‐viscosity operating conditions. The variable‐diameter rotor design provides both novel theoretical foundations and practical guidance for performance optimization of PCPs, representing a rational and effective design approach.

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