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AssigneeWestinghouse Electric Corp.
InventorDavid A. Snyder
Estimating the term…
System and method for evaporating moisture from a gap defined between a heat transfer tube surrounding a repair sleeve in a nuclear steam generator. The nuclear steam generator has a heat transfer tube surrounding a repair sleeve that has been hydraulically expanded into engagement with the tube. The tube and the sleeve define a gap therebetween having moisture residing therein. The system includes an air compressor in communication with the gap for supplying air to the gap and a dryer in communication with the air compressor for drying the gas supplied to the gap. A heater in communication with the air compressor may also be provided for heating the air supplied to the gap, so that the moisture residing in the gap evaporates into the heated air. A vacuum pump in communication with the gap may be provided for decreasing the pressure of the heated air in the gap, so that substantially all the moisture evaporates from the gap and into the heated air.
For use in association with a vessel belonging to a nuclear steam supply system, the vessel having a first tubular member disposed therein surrounding a second tubular member, the first tubular member and the second tubular member defining a gap therebetween having moisture residing therein, a system for evaporating the moisture from the gap, comprising:
For use in association with a heat exchanger vessel belonging to a nuclear steam supply system, the heat exchanger vessel having a heat transfer tube disposed therein surrounding a sleeve, the tube and the sleeve defining an annular gap therebetween having moisture residing therein, a system for evaporating the moisture from the gap, comprising:
For use in association with a heat exchanger vessel belonging to a nuclear steam supply system, the heat exchanger vessel having a heat transfer tube disposed therein surrounding a repair sleeve engaging the tube, the tube and the sleeve defining an annular gap therebetween having moisture residing therein, the tube having a first open end and a second open end, a system for evaporating the moisture from the gap to prepare the sleeve for welding to the tube, the system comprising:
For use in association with a vessel belonging to a nuclear steam supply system, the vessel having a first tubular member disposed therein surrounding a second tubular member, the first tubular member and the second tubular member defining a gap therebetween having moisture residing therein, a method of evaporating the moisture from the gap, comprising the steps of:
For use in association with a heat exchanger vessel belonging to a nuclear steam supply system, the heat exchanger vessel having a heat transfer tube disposed therein surrounding a repair sleeve engaging the tube, the tube and the sleeve defining an annular gap therebetween having moisture residing therein, the tube having a first open end and a second open end, a method of evaporating the moisture from the gap to prepare the sleeve for welding to the tube, the method comprising the steps of:
Dependencies are inferred from the claim text.