Title:
AXIAL FLOW TURBINE
Document Type and Number:
Japanese Patent JPS59122707
Kind Code:
A
Abstract:
PURPOSE:To reduce a loss of turbine work in a balance hole of a rotor disc, by installing a steam guide plate in a rotor disc opposite surface of a nozzle diaphragm inner ring. CONSTITUTION:A steam guide plate 10 is installed in the opposite surface of a rotor disc 2 of a nozzle diaphragm inner ring 6 so as to cause it to be situated at the radial inside of a balance hole 8 of the rotor disc 2. Circulating steam passed through a clearance between the nozzle diaphragm inner ring 6 and the rotor disc 2 flows along the steam guide plate 10 and given a component of velocity in a sense of rotor rotation at an inlet of the balance hole 8 whereby no turbine work is received in time of passing through the balance hole 8 so that, as far as for that portion, a loss of turbine work can be reduced.
Inventors:
OOMORI TATSUROU
Application Number:
JP22801882A
Publication Date:
July 16, 1984
Filing Date:
December 28, 1982
Export Citation:
Assignee:
TOSHIBA KK
International Classes:
F01D9/02; F01D5/08; F01D11/02; (IPC1-7): F01D9/02; F01D11/02
Attorney, Agent or Firm:
Kiyoshi Inomata