Method for dismantling bulky parts of pressure-vessel fittings of a nuclear plant
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United States of America Patent
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-
May 27, 1997
Grant Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Dec 16, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Pressure vessels of nuclear plants are equipped with so-called pressure-vessel fittings for the purpose of receiving fuel assemblies. If a bulky part of that type is to be exchanged, very large transport containers for transporting to a location outside the nuclear plant are required. In order to ensure that smaller transport containers can be used, it is necessary to dismantle the bulky parts. In order to ensure that the dismantling operation can be carried out without complicated holding devices, provision is made for setting down an open transport container on the bottom of a water tank. A bulky part is inserted into the transport container and the bulky part projects a predeterminable amount above an end surface of the transport container. The bulky part is separated above the end surface through the use of a separating device disposed on the end surface of the transport container.
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