Title:
AXIAL FLOW STEAM TURBINE, AND METHOD OF REMODELING AXIAL FLOW STEAM TURBINE
Document Type and Number:
Japanese Patent JP2014163368
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To simplify a structure inside of an exhaust chamber and to improve performance of the exhaust chamber without degrading assembling/maintenance performances, in the exhaust chamber of a low-pressure steam turbine.SOLUTION: An axial flow steam turbine includes: a low-pressure steam turbine; and a turbine exhaust device for guiding steam flow passing through a final stage of the low-pressure steam turbine to a condenser disposed below the low-pressure steam turbine. The turbine exhaust device has an inner cabin casing 2 including a turbine rotor of the low-pressure steam turbine, an outer cabin casing 1 including the inner cabin casing, and forming a flow channel to guide the steam flow, and an inner cabin supporting member 5 extended toward a side wall of the outer cabin casing and supporting the inner cabin casing. A steam vent hole 20 is formed on an end portion at an outer cabin side wall-side, of the inner cabin supporting member.
Inventors:
SATO KOMA
RI HIROMOTO
OGATA KOJI
RI HIROMOTO
OGATA KOJI
Application Number:
JP2013038124A
Publication Date:
September 08, 2014
Filing Date:
February 28, 2013
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F01D25/30; F01D25/26
Attorney, Agent or Firm:
Polaire Intellectual Property Corporation