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A new construction of rotor of helium expansion turbine.

Author(s) : DUPÁK J., HANZELKA P., MICHALICKA P., et al.

Summary

Design of a rotor for an expansion turbine used in a helium liquefier that would enable operation in different modes and to achieve the desired effectiveness at the same time. For meeting these requirements, the rotor should enable precise operation in the range of 140 000 to 350 000 rpm at minimum heat flow to the low-temperature part of the turbine. Considering the low thermal conductivity and high strength, the low-temperature part was made of VT3-1 titanium alloy. This contribution is focused mainly on problems of creation of mechanically strong and thermally resistant joining of this part of the rotor with the part working at room temperature.

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Pages: 2002-1

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Details

  • Original title: A new construction of rotor of helium expansion turbine.
  • Record ID : 2003-2676
  • Languages: English
  • Source: Cryogenics 2002. Proceedings of the 7th Cryogenics Conference
  • Publication date: 2002/04/23

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