General Electric Company

Rajendra Gonoor

Daniel Ross Predmore

Erik Eduardo Lopez Partida

Robert James Sherwood

Erik Eduardo Lopez

An arrangement is disclosed in which deflections and mechanical stresses in turbine low pressure casings are controlled by inserting struts between the turbine diaphragm ledge ring stages. Preferably, the struts are cylindrical in shape, although other different shapes can be used in accordance with the needs of different applications. The struts can be solid or hollow in construction, although preferably they are hollow to reduce the material needed to fabricate them. The struts are located around the turbine casing, as is required to connect together two ledge rings where there is high axial deflection in the casing.

Steam turbine LP casing cylindrical struts between stages

A support arrangement is provided for an inner casing of a turbine having an inner casing with upper and lower sections secured together along a first interface lying substantially in a horizontal plane containing a longitudinal centerline of a turbine rotor. An outer shell substantially encloses the inner casing, and in the inner casing is supported directly on an external foundation at a mounting location below the longitudinal centerline.

Support arrangement for a steam turbine LP inner casing

A turbine casing segment is disclosed. In one embodiment, a turbine casing segment is disclosed including: a plurality of stage segments; a plurality of ledge ring partitions separating the plurality of stage segments, wherein at least one of the plurality of ledge ring partitions has an axially extending aperture therethrough; and a substantially rounded extraction aperture located flush with an inner surface of one of the plurality of stage segments.

Growing community of inventors

Bengaluru, India

Rajendra Gonoor