Steam generator in which the heat-carrying fluid is a liquid metal and the detection of leakages is carried out by sampling this liquid metal
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United States of America Patent
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Feb 16, 1988
Grant Date -
N/A
app pub date -
Jan 27, 1986
filing date -
Jan 25, 1985
priority date (Note) -
Expired
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Abstract
A steam generator in which the heat-carrying fluid is a liquid metal and the detection of leakages is carried out by sampling the liquid metal. The end of the steam generator through which the liquid metal enters comprises a tube plate (2), a thermal protection plate (10) and a hollow flow sill (22) constituting the end part of the bundle case (4). Tubes (20) for protecting the tubes (3) of the bundle are placed around each of the tubes (3) between the protection plate (10) and the tube plate (2), the space (17) between these two plates being closed on its periphery by a sleeve (15). The hollow sill (22) communicates with the space (17) through tubes (27) and with the inner volume or the bundle case (4). A liquid metal take-off device (31, 32) is placed in the hollow sill (22). The invention applies in particular to steam generators of fast neutron nuclear reactors cooled with liquid sodium.
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