The axial tip clearance leakage analysis of the winglet and composite blade tip for the liquid-ring vacuum pump

Wei, Xiaoxiao; Zhang, Renhui

doi:10.1016/j.vacuum.2022.111027

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…This sudden increase in load will cause the vacuum pump drive motor to operate in an overloaded state when its maximum output torque is lower than the load torque. It will cause motor slips, resulting in the loss of the vacuum environment and causing significant economic losses [4]. Therefore, it is necessary to study methods that consider reducing the can loss and improving motor overload capacity simultaneously at the design stage.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Optimization Design Method to Improve the Overload Capacity and Efficiency of Canned Permanent Magnet Synchronous Motor for Vacuum Pump

Li,

Chen,

et al. 2023

Electronics

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The efficiency and overload capacity are crucial performance factors during the design of the canned permanent magnet synchronous motors (CPMSMs) intended for driving vacuum pumps, due to their unique operational characteristics. The conventional multi-objective optimization design method is not suitable for the CPMSM due to the need to carefully consider additional influential factors, including the flat structure, eddy current losses in the cans, can thickness, and can material. To enhance the efficiency and overload capacity of the CPMSM, this paper introduces a synergistic optimization design approach that integrates the equivalent magnetic circuit method and the finite element method. A design example of a 1.5 kW CPMSM is presented, and experiments are performed to verify the effectiveness of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Synergistic Optimization Design Method to Improve the Overload Capacity and Efficiency of Canned Permanent Magnet Synchronous Motor for Vacuum Pump

Li,

Chen,

et al. 2023

Electronics

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“…There is a certain tip clearance (TC) between the inducer and the pipe's wall. Much research [6][7][8][9][10][11][12][13] about impellers' tip clearances has been carried out but there has been little research on inducers' TCs, especially on shunt blade inducers. The existence of tip clearance has a certain impact on the cavitation of the inducer.…”

Section: Introductionmentioning

confidence: 99%

Effect of Tip Clearance on the Cavitation Flow in a Shunt Blade Inducer

et al. 2022

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In order to study the effect of tip clearance on the internal cavitation stability of a shunt blade inducer, an external characteristics experiment of a centrifugal pump with a shunt blade inducer was carried out. Based on the turbulence model and mixture model, the cavitating flow in a centrifugal pump with the inducer was numerically simulated. The influence of tip clearance on the cavitating flow in a shunt inducer was studied and analyzed. Through the research, it was found that tip clearance has a certain influence on the critical cavitation coefficient. The existence of the tip clearance caused a significant leakage vortex near the inducer’s inlet and a strong transient effect was shown. The location and degree of cavitation caused by the tip leakage are clarified in this paper. Tip clearance has a great impact on the pressure distribution on a shunt blade inducer. The influence law of tip clearance on an inducer’s blade load distribution was clarified. The results showed that tip clearance has a significant effect on the cavitation of a shunt blade inducer under low flow rate conditions.

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Research on blade tip clearance cavitation and turbulent kinetic energy characteristics of axial flow pump based on the partially-averaged Navier-Stokes model

Jia,

Zhang,

Zhu

2024

J Hydrodyn

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The axial tip clearance leakage analysis of the winglet and composite blade tip for the liquid-ring vacuum pump

Cited by 9 publications

References 15 publications

Synergistic Optimization Design Method to Improve the Overload Capacity and Efficiency of Canned Permanent Magnet Synchronous Motor for Vacuum Pump

Synergistic Optimization Design Method to Improve the Overload Capacity and Efficiency of Canned Permanent Magnet Synchronous Motor for Vacuum Pump

Effect of Tip Clearance on the Cavitation Flow in a Shunt Blade Inducer

Research on blade tip clearance cavitation and turbulent kinetic energy characteristics of axial flow pump based on the partially-averaged Navier-Stokes model

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