Liquid heaters and vaporizers – Supports
Patent
1982-12-06
1984-06-12
Makay, Albert J.
Liquid heaters and vaporizers
Supports
165 11R, 376245, 72432, F22B 3724
Patent
active
044535015
ABSTRACT:
A nuclear steam generator including a vessel, means to introduce vaporizable fluid into the bottom portion of the vessel, an outlet near the top through which vapor is discharged, a horizontal tube sheet extending across the vessel, a plurality of U-shaped tubes, having each end secured to and extending through the tube sheet, means for introducing heating fluid to one end of each of the U-shaped tubes, means for removing heating fluid from the other end of each of the U-shaped tubes, tube support means positioned within the vessel for preventing tube vibration, the tube support means including horizontally positioned means closely surrounding, but slightly spaced from each tube, means through which access can be had to the vessel interior beneath the tube sheet when the steam generator is not in operation, and testing means for determining whether or not a tube is locked into a tube support means including a longitudinal member, with a first end located inside the tube to be tested, and a second end located outside of the tube, means for securing the first end of the member to the inside of the tube, means for heating a length of the longitudinal member, and an equal length of the tube, to an elevated temperature, and means for indicating movement of the second end of the longitudinal member away from the tube end, which would indicate that the tube is locked into the support means.
REFERENCES:
patent: 3880123 (1975-04-01), Freiday
Hayes James K.
Hayes Lawrence R.
Combustion Engineering Inc.
Helmbold David E.
Makay Albert J.
Olson Robert L.
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