Radial Flow Steam Turbine

Abstract: Provided is a high-efficiency, realistic, radial flow steam turbine such that the steam supply method is simplified, and that a sufficient amount of steam is supplied to the interior,of a turbine unit which is additionally provided in the axial direction. Said radial flow steam turbine is equipped with a rotation shaft; rotation plates connected to the rotation shaft; rotor blades mounted on the rotation plates; stationary plates which face the rotation plates and are supported by a casing by being fixed thereto; stator blades mounted on the stationary plates; and an operating steam circulation path wherein the rotor blades on the rotation plates and the stator blades on the stationary plates are alternately disposed in the radial direction, and wherein the flow ■ direction of operating steam is in a radial direction which is outward with respect to the rotation shaft. Also, the radial flow steam turbine is configured in such a way that the steam supplied by a steam supply source is circulated as operating steam in the operating steam path, and that thereby the rotation plates and the rotation shaft are rotated. In this radial flow steam turbine, openings are provided in those areas of the rotation plates which are in the vicinity of the rotation shaft, with the result that an axial steam supply passage is secured.

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