Steam turbine with steam storage system
AssigneeGeneral Electric Company
InventorsJulia Maria Kirchner, Theres Cuche, Kevin Morris
Life of this patent
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Abstract
A steam turbine system including a steam source for generating a steam flow, a high pressure turbine providing a first steam exhaust, a low pressure turbine fluidly coupled to the high pressure turbine, and, a steam storage system having an inlet for receiving a portion of the first steam exhaust from the high pressure steam turbine and storing in the steam storage system, the steam storage system having an output with a pressure relief valve for discharging a second steam exhaust to the low pressure turbine.
Claims20
A steam turbine system, comprising:
- a steam source for generating a steam flow;
- a high pressure turbine providing a first steam exhaust;
- a low pressure turbine fluidly coupled to the high pressure turbine;
- a steam storage system having an inlet for receiving a portion of the first steam exhaust from the high pressure steam turbine and storing in the steam storage system, the steam storage system having an output with a pressure relief valve for discharging a second steam exhaust to the low pressure turbine.
A power plant, comprising:
- a steam turbine system, having:
- a heat recovery steam generator (HRSG) for generating a steam flow;
- a high pressure turbine providing a first steam exhaust;
- a low pressure turbine fluidly coupled to the high pressure turbine;
- and,
- a steam storage system having an inlet for receiving a portion of the first steam exhaust from the high pressure steam turbine and storing a storage steam, the steam storage system having an output with a pressure relief valve for discharging a second steam exhaust to the low pressure turbine.
A method, comprising:
- feeding a first portion of a first exhaust steam from a high pressure steam turbine to a steam storage system, and feeding a second portion of the steam to an HRSG;
- storing the first portion of the steam in the steam storage system;
- outputting, with a pressure relief valve, a steam flow from the steam storage system to a low pressure steam turbine;
- and,
- controlling the temperature of the exhaust steam from the steam storage system by adding superheated steam from the first steam exhaust, wherein the steam storage discharges superheated steam to the low steam turbine.
Dependencies are inferred from the claim text.