Analysis and testing of a superconducting maglev submersible cryogenic liquid pump

Abstract This paper studies a superconducting maglev submersible cryogenic liquid pump (CLP) using superconducting magnetic bearing (SMB). A new structure is proposed for the self‐stability of high‐temperature superconducting magnetic levitation, and the compact structure of disk motor‐pump. The rot...

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Main Authors: Liwang Ai, Guomin Zhang, Xiaozhuo Xu, Haichao Feng, Wenping Cao
Format: Article
Language:English
Published: Wiley 2022-04-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12171
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author Liwang Ai
Guomin Zhang
Xiaozhuo Xu
Haichao Feng
Wenping Cao
author_facet Liwang Ai
Guomin Zhang
Xiaozhuo Xu
Haichao Feng
Wenping Cao
author_sort Liwang Ai
collection DOAJ
description Abstract This paper studies a superconducting maglev submersible cryogenic liquid pump (CLP) using superconducting magnetic bearing (SMB). A new structure is proposed for the self‐stability of high‐temperature superconducting magnetic levitation, and the compact structure of disk motor‐pump. The rotor of the axial‐flux disk motor is connected with a centrifugal impeller to form an impeller‐rotor of the proposed superconducting CLP. Supported by a SMB system, the impeller‐rotor rotates frictionlessly with self‐stabilisation as a suspension rotor. The SMB system includes a radial‐type SMB, an auxiliary permanent magnet bearing, and an electromagnetic bearing composed of the stator and the rotor of disk motor. Theoretical calculations and experimental measurements are performed to examine the axial and radial levitation force behaviours of the SMB system. Then, a kinetic model of the suspension rotor is established and analysed to assure force balance and stable levitation. Finally, a prototype pump is fabricated and an experimental setup for liquid nitrogen transmission is constructed for validation purposes. The experimental tests on the pump head and the flow rate are carried out, which demonstrate the effectiveness of the proposed superconducting maglev submersible CLP.
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spelling doaj.art-d24f1d401dd145eea886a0dfc4b73a3a2022-12-22T02:55:37ZengWileyIET Electric Power Applications1751-86601751-86792022-04-0116449851010.1049/elp2.12171Analysis and testing of a superconducting maglev submersible cryogenic liquid pumpLiwang Ai0Guomin Zhang1Xiaozhuo Xu2Haichao Feng3Wenping Cao4The School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo ChinaThe Key Laboratory of Applied Superconductivity Chinese Academy of Sciences Beijing ChinaThe School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo ChinaThe School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo ChinaThe School of Electrical Engineering and Automation Anhui University Hefei ChinaAbstract This paper studies a superconducting maglev submersible cryogenic liquid pump (CLP) using superconducting magnetic bearing (SMB). A new structure is proposed for the self‐stability of high‐temperature superconducting magnetic levitation, and the compact structure of disk motor‐pump. The rotor of the axial‐flux disk motor is connected with a centrifugal impeller to form an impeller‐rotor of the proposed superconducting CLP. Supported by a SMB system, the impeller‐rotor rotates frictionlessly with self‐stabilisation as a suspension rotor. The SMB system includes a radial‐type SMB, an auxiliary permanent magnet bearing, and an electromagnetic bearing composed of the stator and the rotor of disk motor. Theoretical calculations and experimental measurements are performed to examine the axial and radial levitation force behaviours of the SMB system. Then, a kinetic model of the suspension rotor is established and analysed to assure force balance and stable levitation. Finally, a prototype pump is fabricated and an experimental setup for liquid nitrogen transmission is constructed for validation purposes. The experimental tests on the pump head and the flow rate are carried out, which demonstrate the effectiveness of the proposed superconducting maglev submersible CLP.https://doi.org/10.1049/elp2.12171axial‐flux disk motorcryogenic liquid pumpfinite element analysislevitation forcesuperconducting maglev
spellingShingle Liwang Ai
Guomin Zhang
Xiaozhuo Xu
Haichao Feng
Wenping Cao
Analysis and testing of a superconducting maglev submersible cryogenic liquid pump
IET Electric Power Applications
axial‐flux disk motor
cryogenic liquid pump
finite element analysis
levitation force
superconducting maglev
title Analysis and testing of a superconducting maglev submersible cryogenic liquid pump
title_full Analysis and testing of a superconducting maglev submersible cryogenic liquid pump
title_fullStr Analysis and testing of a superconducting maglev submersible cryogenic liquid pump
title_full_unstemmed Analysis and testing of a superconducting maglev submersible cryogenic liquid pump
title_short Analysis and testing of a superconducting maglev submersible cryogenic liquid pump
title_sort analysis and testing of a superconducting maglev submersible cryogenic liquid pump
topic axial‐flux disk motor
cryogenic liquid pump
finite element analysis
levitation force
superconducting maglev
url https://doi.org/10.1049/elp2.12171
work_keys_str_mv AT liwangai analysisandtestingofasuperconductingmaglevsubmersiblecryogenicliquidpump
AT guominzhang analysisandtestingofasuperconductingmaglevsubmersiblecryogenicliquidpump
AT xiaozhuoxu analysisandtestingofasuperconductingmaglevsubmersiblecryogenicliquidpump
AT haichaofeng analysisandtestingofasuperconductingmaglevsubmersiblecryogenicliquidpump
AT wenpingcao analysisandtestingofasuperconductingmaglevsubmersiblecryogenicliquidpump