STEAM TURBINE CYLINDER WITH EXTRACTION CHAMBER

摘要

FIELD: extraction turbines. SUBSTANCE: one of turbine cylinders has extraction chamber arranged along its casing and communicating through radial slit-type passage provided between yokes of orifice plates with flow path. Mentioned passage is formed with aid of radial slits made on butt-end flat surface of orifice plate yoke and rim downstream of extraction stage which makes it possible to arrange orifice- plate yokes of pre-extraction and post-extraction stages at standard distances typical of pressure stages without steam extraction. Rather uniform speed and pressure field is ensured in extraction chamber through enlarging sectional areas of radial slits between outlet pipes of extraction chamber and diametrically opposite point. EFFECT: improved characteristics of cylinder. 3 dwg