Dynamoelectric machine with arcuate heat exchanger and related methods
AssigneeSiemens Westinghouse Power Corporation
InventorsKing Wai Chan, Homer Gay Hargrove
Life of this patent
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Abstract
A dynamoelectric machine 30 includes a rotor 32 and a stator 34 surrounding the rotor. The dynamoelectric machine 30 further includes a generator housing 36 surrounding both the rotor 32 and the stator 34. Additionally, the dynamoelectric machine 30 includes at least one blower 39a, 39b for generating a cooling gas flow 38 within the generator housing 36 to cool the stator 34 and the rotor 32. The dynamoelectric machine 30 includes at least one arcuate heat exchanger 40a, 40b, 80a, 80b within the generator housing 36 for extracting heat from the cooling gas flow 38.
Claims20
A dynamoelectric machine comprising:
- a rotor;
- a stator surrounding said rotor;
- a generator housing surrounding said rotor and said stator;
- at least one blower for generating a cooling gas flow within said generator housing for cooling said stator and said rotor;
- and
- at least one arcuate heat exchanger within said generator housing for extracting heat from the cooling gas flow.
An arcuate heat exchanger for a dynamoelectric machine comprising a rotor, a stator surrounding the rotor, a generator housing surrounding the stator and rotor, and at least one blower for generating a cooling gas flow within the generator, the arcuate heat exchanger for positioning within the generator housing and comprising:
- a bundle of arcuate coolant tubes, each coolant tube for carrying a coolant to extract heat from the cooling gas flow;
- and
- at least one pair of spaced-apart plates adjacent said bundle of coolant tubes.
A method of extracting heat from a cooling gas flow within a generator housing to cool a rotor and a stator surrounding the rotor, the method comprising:
- positioning at least one arcuate heat exchanger within the housing;
- and
- causing a coolant to flow within the arcuate heat exchanger to extract heat from the cooling gas flow.
Dependencies are inferred from the claim text.