Discharge tube for inhibiting stratification in feedwater header

Details Discharge tube for inhibiting stratification in feedwater header Discharge tube for inhibiting stratification in feedwater header

1984-05-14

1985-03-05

Yuen, Henry C.

Liquid heaters and vaporizers

Indirectly heated

Separate fluid

122438, 239556, F22B 106, F22D 128

Patent

active

045024197

ABSTRACT:
A nuclear steam generator having a feedwater ring disposed in the upper portion of the steam generator above the tubes, the feedwater header having a plurality of J-shaped discharge nozzles, some of which are in fluid communication with the upper portion of the feedwater ring header and others being in fluid communication with the lower portion of the feedwater ring header, those in fluid communication with the lower portion of the feedwater ring header having a discharge elevation lower than those in fluid communication with the upper portion of the feedwater header so that during low feedwater flow operation feedwater is fed from the lower portion of the feedwater header removing cold water therefrom and promoting mixing of the feedwater in the header in order to reduce stratification of feedwater therein.

REFERENCES:
patent: 2609236 (1952-09-01), Myshock
patent: 3142306 (1964-07-01), Boka, Jr.
patent: 3635287 (1972-01-01), Sprague
patent: 3912460 (1975-10-01), McGann
patent: 3991720 (1976-11-01), Byerley
patent: 4037569 (1977-07-01), Bennett et al.

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