Device for the determination of the vibrations occurring at the internals of a reactor pressure vessel
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United States of America Patent
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Apr 29, 1986
Grant Date -
N/A
app pub date -
Jun 1, 1982
filing date -
Jun 1, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a device for the determination of the vibrations occurring at the internals of a reactor pressure vessel, it is possible to perform the maintenance of the vibration detector located in a housing from outside the reactor pressure vessel. One end of a guide tube is fed through a pipe stub to a receptacle cone connected to the core internals. The end of the guide tube facing away from the reactor pressure vessel is cup-shaped and is sealed with a cover. A flexible rod is connected to the housing and its other end extends into the cup-shaped end of the guide tube. The flexible rod and with it the housing connected to it can be inserted into the receptacle cone, providing good transmission of the vibrations prevailing at the internals, which reach an evaluation unit through the cable.
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