Steam turbine steam supplementing structure

Abstract

The application provides a steam turbine steam supplementing structure, and relates to the technical field of steam turbines.The steam turbine steam supplementing structure comprises a steam supplementing chamber and a shell, the inner wall of the steam supplementing chamber is fixedly provided with a flow guide cylinder, the flow guide cylinder is a hollow structure, the two ends of the flow guide cylinder are in an expanded pipe shape, a plurality of steam inlet grooves are arranged on the steam supplementing chamber, the steam inlet grooves are located on the side of the flow guide cylinder, the shell is sleeved on the outer wall of the steam supplementing chamber, and the shell is provided with a steam supplementing pipe.The steam turbine steam supplementing structure provided by the application supplements steam into the inside of the shell through the steam supplementing pipe during use, the supplemented steam enters the inside of the steam supplementing chamber through the steam inlet grooves, the two ends of the flow guide cylinder are in an expanded pipe shape, so that a Venturi tube-shaped structure is formed in the inside of the steam supplementing chamber, and the kinetic energy of the main steam is improved after the main steam leaves the flow guide cylinder, thereby reducing the mixing loss of the supplemented steam and the original main steam in the steam turbine.

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