Device for detecting and monitoring perforation of the bottom head of the vessel of a nuclear reactor
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United States of America Patent
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Jan 27, 1998
Grant Date -
N/A
app pub date -
Sep 6, 1996
filing date -
Sep 11, 1995
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Abstract
The detection device includes at least one thermocouple (10) arranged aligned with the bottom head of the vessel of the nuclear reactor, having a first branch (9) made of a first metallic material and at least one second branch (11) made of a second metallic material, different from the first material, welded to a point on the first branch constituting a hot junction of the thermocouple (10). The first branch (9) of the thermocouple has the form of an elongate hollow section. The device furthermore includes means for analyzing the measurements taken by the thermocouples (10).
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