Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Leak detection
Patent
1998-07-08
2000-05-23
Carone, Michael J.
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Leak detection
73 405R, G21C 1700, G01M 308
Patent
active
060673370
ABSTRACT:
A multiple-sheathed sodium leakage detection apparatus capable of detecting a small amount of leakage of sodium due to a breakage of a well for temperature measurement at an early stage of the leakage. The apparatus is a combination of a multiple-sheathed sodium leakage detector having a sheathed thermocouple and sodium leakage detection element wires, which are disposed in an insulating material filled in a multiple sheath; a sodium leakage judgment device which judges whether or not there is a leakage of sodium by a signal from the multiple-sheathed sodium leakage detector; an alarm device which gives an alarm when it is judged that there is a leakage of sodium; and signal lines which connect these devices. The multiple-sheathed sodium leakage detector is designed in conformity to the sheath outer diameter so that it can be inserted into a well which has already been installed on an existing piping without changing the well.
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Carone Michael J.
Doryokuro Kakunenryo Kaihatsu Jigyodan
French III Fredrick T.
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