Dummy ring assembly for removing vane segments, and method of removing vane segments using same
A dummy ring assembly for removal is provided with a plurality of dummy rings. Each of the dummy rings has a dummy shroud section fitted into a vane ring groove of a casing into which a shroud of a vane segment is fitted, and has an arc shape whose central angle centered on a rotational axis is less...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A dummy ring assembly for removal is provided with a plurality of dummy rings. Each of the dummy rings has a dummy shroud section fitted into a vane ring groove of a casing into which a shroud of a vane segment is fitted, and has an arc shape whose central angle centered on a rotational axis is less than 90°. The dummy shroud sections of the plurality of dummy rings are fitted sequentially into the vane ring groove of the casing. The vane segment is removed from the casing by moving the dummy rings in a circumferential direction along the vane ring groove. |
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