| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for controlling a cooling air amount supplied to the wheel space (68) of a turbine section (14) of a gas turbine (10). SOLUTION: The device includes a sensor (70) for detecting the temperature of the wheel space (68) and providing a detected temperature signal (52). The device also includes a processor (50) for determining whether the temperature of the wheel space (68) exceeds a desired value or not in response to the detected temperature signal (52). When the temperature of the wheel space (68) exceeds the desired value, the processor (50) starts an actuator control signal (54) to control the displacement of cooling air control valves (82, 102), and makes a larger amount of cooling air flow supplied from a compressor section (12) of the gas turbine (10) or from a cooling air cooler (33) which receives air from the compressor section (12) of the gas turbine (10), to cool the temperature of the wheel space (68). COPYRIGHT: (C)2011,JPO&INPIT
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