Steam turbine

Abstract

The invention is concerned with an improvement in a steam turbine having a boiler having a first superheater, a first conduit having an inlet end and an outlet end, said outlet end being connected to said first superheater, a pressurized liquid working fluid source connected to said inlet end of said first conduit, said first superheater being adapted to convert said liquid working fluid to superheated vapor, a second conduit having an input end and an output end, said input end being connected to receive said vapor from said superheater, and a turbine connected to receive said vapor from said output end of said second conduit. The improvement comprises a structure for restricting flow through the second conduit. A third conduit is adapted to conduct a first portion of the superheated vapor from the second conduit from downstream of the restricting structure to a second superheater wherein the first portion of the superheated vapor is further superheated. The fourth conduit is adapted to conduct the further superheated vapor from the second superheater to the turbine. The result is improved utilization of the heat generated by the boiler whereby significant increases in output energy result.

Dependencies are inferred from the claim text.