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As the conventional self-priming pump cannot satisfy the requirement of quick aerofluxus, a novel self-priming pump with distinct structure and the extraordinary self-priming mechanism was designed to afford promising opportunities for emergency water delivery. Meanwhile, to obtain the optimal profile of the blade, nine blades with different thickness distribution were systematically investigated...
Multistage pump can provide high-pressure liquid, which is widely used in various areas of national economy. In order to improve the stability and reduce the noise of multistage pump, the relationships among the pressure fluctuation, vibration, and noise were studied deeply by using computational fluid dynamics and experimental measurement. Based on the unsteady numerical calculation, the phase of...
To improve the stability of the multistage centrifugal pump, a special test bench was built based on the Bently ADRE 408 portable vibration tester. Taking a cantilever multistage centrifugal pump as the research object, the axis orbit and the vibration spectrum of the pump were obtained at 0Qd (zero flow point), 1.0Qd (design flow point) and 1.5Qd (large flow point). Moreover, based on the Butterworth...
Space diffuser is one of the most critical flow components in electric submersible pumps; its hydraulic design has the significant effects on the pump performance. In this paper, a typical electric submersible pump was chosen as the research object to study the influence of space diffuser vanes number, by means of numerical simulation and experimental test methods. Based on the same curve profile...
This work presents a specially designed mixed-flow submersible well pump to meet the demand of high handling capacity. To simplify molding process and productivity, an axial-radial guide vane is proposed and its main hydraulic components are made of plastics. To clarify its effect on the performance, a radial guide vane and a space guide vane were developed as well. By comparison of flow fields, the...
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