Research on pumping laws of different-shaped Roots rotors for multi-stage vacuum pump design

Wang, Guipeng; Chen, Guoxin; Shan, Yun; Wang, Yu; Xie, Yuanhua; Ba, Yaoshuai; Ba, Dechun; Liu, Kun

doi:10.1016/j.ymssp.2023.110752

Mechanical Systems and Signal Processing

2023

DOI: 10.1016/j.ymssp.2023.110752

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Research on pumping laws of different-shaped Roots rotors for multi-stage vacuum pump design

Guipeng Wang,

Guoxin Chen,

Yun Shan

et al.

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Cited by 5 publications

References 26 publications

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Research on the influence of gas types on the pumping performance of dry Roots vacuum pump

Wang,

Kong,

et al. 2024

Vacuum

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Research on the influence of gas types on the pumping performance of dry Roots vacuum pump

Wang,

Kong,

et al. 2024

Vacuum

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Thermodynamic modelling of a twin-stage claw vacuum pump and its gas pressurization analysis

Xin,

Ren,

Wang

et al. 2025

Vacuum

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The influence of water vapor on the internal flow characteristics within a hydrogen circulation pump

Ma,

Xia,

Wang

et al. 2024

AIP Advances

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This study examines the effects of water vapor on the performance and stability of a Roots-type hydrogen circulation pump. The accuracy of the numerical model was initially confirmed using air as the experimental medium, and subsequent simulations were conducted with pure hydrogen or mixed media containing water vapor. Analysis of pressure and velocity distribution within the pump revealed that water vapor does not significantly impact these factors. However, the interaction between hydrogen and water vapor results in the formation of larger hydrogen clusters, reducing internal leakage flow and leading to a slight increase in inlet and outlet flow rates. The presence of water vapor in the suction chamber increases turbulence energy in the root region of the rotor, influencing flow patterns and creating multi-scale vortex structures. In the exhaust chamber, the turbulence energy is lower and there are fewer vortices, but high-energy vortices may occur at the connection to the exhaust pipe, affecting the outlet flow rate.

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Research on pumping laws of different-shaped Roots rotors for multi-stage vacuum pump design

Cited by 5 publications

References 26 publications

Research on the influence of gas types on the pumping performance of dry Roots vacuum pump

Research on the influence of gas types on the pumping performance of dry Roots vacuum pump

Thermodynamic modelling of a twin-stage claw vacuum pump and its gas pressurization analysis

The influence of water vapor on the internal flow characteristics within a hydrogen circulation pump

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