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US 8,499,561 B2Granted
Method and apparatus for controlling moisture separator reheaters
AssigneeGeneral Electric Company
InventorsSteven Craig Kluge, Michael James Molitor
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Abstract
A system and a method are provided that may be used to control the temperature of steam being reheated by a moisture separator reheater (MSR). The temperature of a steam being reheated by a MSR may be sensed, and controller embodiments may use the sensed temperature to control the transfer of heat from various MSR components into the reheated steam. By using such control embodiments, the MSR may provide optimally heated steam to other power plant components, thus increasing the performance, efficiency, and safety of a power plant.
Claims20
A system comprising:
- a steam turbine;
- a first moisture separator reheater coupled to the steam turbine;
- a second moisture separator reheater coupled to the steam turbine;
- and
- a first controller programmed to control a first temperature of steam leaving the first moisture separator reheater and a second temperature of steam leaving the second moisture separator reheater, wherein the first controller is programmed to keep the first temperature and the second temperature substantially the same.
2 more elements
A system, comprising:
- a moisture separator reheater (MSR) controller responsive to electronic feedback signals to keep a first temperature of steam being reheated and dried by a first MSR and a second temperature of steam being reheated and dried by a second MSR substantially the same, wherein the electronic feedback signals comprise:
- a first temperature measurement for closed-loop control of the first temperature of steam being reheated;
- and
- a second temperature measurement for closed-loop control of the second temperature of steam being reheated.
1 more element
A method, comprising:
- sensing a first temperature of steam being reheated and dried by a first moisture separator reheater (MSR);
- sensing a second temperature of steam being reheated and dried by a second MSR;
- and
- controlling heat transfer to steam in the first MSR and steam in the second MSR via a controller to keep the first temperature and the second temperature substantially the same.
1 more element
Dependencies are inferred from the claim text.