Analysis and testing of a superconducting maglev submersible cryogenic liquid pump

This paper studies a superconducting maglev submersible cryogenic liquid pump (CLP) using magnetic bearing (SMB). A new structure is proposed for the self-stability of high-temperature levitation, and compact disk motor-pump. The rotor axial-flux motor connected with centrifugal impeller to form an impeller-rotor CLP. Supported by SMB system, rotates frictionlessly self-stabilisation as suspension rotor. system includes radial-type SMB, auxiliary permanent magnet bearing, electromagnetic composed stator motor. Theoretical calculations experimental measurements are performed examine axial radial levitation force behaviours system. Then, kinetic model established analysed assure balance stable levitation. Finally, prototype fabricated setup nitrogen transmission constructed validation purposes. tests on head flow rate carried out, which demonstrate effectiveness