Casing Deformation Amount Measuring Apparatus And Casing Deformation Amount Measuring Method

Abstract: ABSTRACT CASING DEFORMATION AMOUNT MEASURING APPARATUS AND CASING DEFORMATION AMOUNT MEASURING METHOD Provided is a casing deformation amount 5 measuring apparatus for a steam turbine including a casing, a plurality of nuts fixed to an outer surface of the casing, a plurality of bolts individually screwed, at each one side end portion thereof, in the nuts and projecting to an outer side in a diametrical 10 direction of the casing from the outer surface of the casing, and a lagging material held by the plurality of bolts and covering the casing. The casing deformation amount measuring apparatus includes a target mounted on another side end portion of one of the bolts and 15 exposed to the outer side in a diametrical direction of the casing with respect to the lagging material, and a distance meter that is disposed in an opposing relation to the target on the outer side in a diametrical direction of the casing and measures a distance to the target.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents