Liquid heaters and vaporizers – Indirectly heated separate injected fluid – Submerged flame
Patent
1984-07-31
1987-04-28
Schwartz, Larry I.
Liquid heaters and vaporizers
Indirectly heated separate injected fluid
Submerged flame
122 4A, 122406R, 122414, 122444, 219306, 219321, 376307, F22B 102
Patent
active
046605100
ABSTRACT:
A model steam generator for simulating the environment inside a nuclear steam generator in order to monitor the condition of the heat exchange tubes of the nuclear steam generator is disclosed herein. The model steam generator includes an electrically-powered thermosyphon heating means for circulating a flow of vapor and condensate through the sample tube in a closed loop. The thermosyphon includes riser tubes which are concentrically disposed within the sample heat exchange tube along a substantial portion of the longitudinal axis thereof for both directing a stream of steam into the inside walls of the heat exchange tubes, and for insulating this flow of steam from the resulting stream of condensate which flows down from the inner walls of the sample tubes. The elimination of the counter-current forces between the stream of steam and the downflowing film of condensate prevents the formation of heat-obstructing ripples of condensate on the inner walls of the sample heat exchange tubes. The elimination of these heat-obstructing ripples results in a substantially uniform pattern of heat flux along the longitudinal axis of the sample tube which accurately simulates the pattern of heat flux in the heat exchange tubes of the nuclear steam generator being monitored.
REFERENCES:
patent: 2987830 (1961-06-01), Jackson
patent: 3853702 (1974-12-01), Bevilacqua
patent: 4132115 (1979-01-01), Benemann
patent: 4135552 (1979-01-01), Mendolia
patent: 4261300 (1981-04-01), Cross et al.
patent: 4282181 (1981-08-01), Pierce
patent: 4288290 (1981-09-01), Saima et al.
patent: 4377737 (1983-03-01), Berry
patent: 4430555 (1984-02-01), Stokes
patent: 4452753 (1984-06-01), Wentzell et al.
"Surrogate Boiler Design and Cost Consideration," EPRI NP 2967, p. 4-1 to 4-4, Mar. 1983.
DePaul L. A.
Schwartz Larry I.
Warner Steven E.
Westinghouse Electric Corp.
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