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US 11,879,365 B2Granted
Steam turbine plant and operation method, combined cycle plant and operation method
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsDaiki Fujimura, Susumu Sekine
Life of this patent
Estimating the term…
Abstract
A steam turbine plant and an operating method thereof, and a combined cycle plant and an operating method thereof, include: a turbine; steam supply lines that supply main steam to the turbine; a steam control valve and an intercept valve provided to the steam supply lines; and a first auxiliary steam supply line that supplies auxiliary steam to the turbine via the steam supply lines which are located farther downstream than the steam control valve and the intercept valve.
Claims15
A steam turbine plant comprising:
- a turbine;
- a main steam supply line that supplies main steam to the turbine;
- a control valve provided in the main steam supply line;
- and
- a first auxiliary steam supply line that supplies auxiliary steam to the turbine via the main steam supply line on a downstream side of the control valve,
- wherein a drain discharge line is provided between the turbine and the control valve in the main steam supply line, and the first auxiliary steam supply line is connected to the drain discharge line at a connecting portion, and
- wherein drain valves are provided in the drain discharge line on an upstream side and a downstream side of the connecting portion, respectively.
4 more elements
A steam turbine plant comprising:
- a first turbine and a second turbine;
- a first main steam supply line that supplies main steam to the first turbine, and a second main steam supply line that supplies main steam to the second turbine;
- a first control valve provided in the first main steam supply line and a second control valve provided in the second main steam supply line;
- and
- one first auxiliary steam supply line that supplies auxiliary steam to the first and second turbines, wherein the one first auxiliary steam supply line merges into the first main steam supply line on a downstream side of the first control valve and merges into the second main steam supply line on a downstream side of the second control valve,
- wherein the first control valve is a closest valve to the first and second turbines within the first main steam supply line, and the second control valve is a closest valve to the first and second turbines within the second main steam supply line.
3 more elements
Dependencies are inferred from the claim text.