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AssigneeElectric Power Research Institute, Inc.
InventorsHermann Josef Laumen, Mohamed Douch, Stanley Timothy Rosinski, Bill Gene Carson
Estimating the term…
The present invention is directed to a metering valve for controlling the amount of a fluid passed through the valve and a servo-valve for controlling the metering valve, wherein the servo-valve is decoupled from the metering valve to thermally distance or thermally isolate the servo-valve from any heat from the fluid passing through the metering valve. The metering valve and servo-valve may be used to attemperate a steam stream in a power plant attemperation system, such as a system for attemperating a superheated steam gas stream from a power plant being used for a heat-recovery steam generator. An integrated metering valve and discharge valve for discharging fluid during periods of non-use is also provide. Changeable throttle plates are also provided that control the flow of the fluid through the control chamber of the metering valve and the discharge valve.
An apparatus for metering a fluid, comprising:
A system for attemperating a gas stream generated by a power plant, comprising:
Dependencies are inferred from the claim text.