Steam Turbine Exhaust Chamber, And Steam Turbine

Abstract: A steam turbine exhaust chamber according to one embodiment comprises a diffuser that forms a diffuser space, and an exhaust casing that forms an exhaust space. The diffuser has an outer diffuser defining a radially outer edge of the diffuser space, and an inner diffuser defining a radially inner edge of the diffuser space. Regarding a first flow guide, the distance in an axial direction from an axis downstream-side end second of a blade end of a final stage moving blade to an axis downstream-side end section of the first flow guide is 20% to 45% of the blade height of the final stage moving blade, for example.

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