Engineering Work Plan for Development of Sludge Pickup Adapter for Fuel Cleanliness Inspections

Pitner, A. L.

FDNW (United States)

关键词: Removal;    Sludges;    Vacuum Systems;    Spent Fuel Casks;    11 Nuclear Fuel Cycle And Fuel Materials;   

DOI  :  10.2172/801162
RP-ID  :  SNF-5531, Rev.0
RP-ID  :  AC06-96RL13200
RP-ID  :  801162

美国|英语

来源: UNT Digital Library

【 摘 要 】

The plan for developing an adapter to suction up sludge into a calibrated tube for fuel cleanliness inspection activities is described. A primary assessment of fuel cleanliness to be performed after processing through the Primary Cleaning Machine is whether the volume of any remaining canister sludge in or on a fuel assembly exceeds the allowable 14 cm{sup 3} limit. It is anticipated that a general visual inspection of the sludge inventory after fuel assembly separation will usually suffice in making this assessment, but occasions may arise where there is some question as to whether or not the observed quantity of sludge exceeds this limit. Therefore a quantitative method of collecting and measuring the sludge volume is needed for these borderline situations. It is proposed to develop an adapter that fits on the end of the secondary cleaning station vacuum wand that will suction the material from the sludge collection tray into a chamber marked with the limiting volume to permit a direct go/no-go assessment of the sludge quantity.