AN ABRASIVE BLASTING APPARATUS FOR DECONTAMINATING THE INNER SURFACE OF CONTAMINATED BUNDLE TUBES IN STEAM GENERATOR

PURPOSE: An abrasive spraying apparatus for decontaminating an inner surface of a contaminated tube bundle of a steam generator is provided to efficiently remove contaminated radionuclides from an inconel tube. CONSTITUTION: A spraying nozzle(11) sprays abrasive to the inner surface of an inconel tu...

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Bibliographic Details
Main Authors CHOI, WANG KYU, LEE, KUNE WOO, KIM, GYE NAM, MIN, BYUNG YOUN
Format Patent
LanguageEnglish
Korean
Published 17.05.2012
Subjects
DECONTAMINATION ARRANGEMENTS THEREFOR
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Summary:PURPOSE: An abrasive spraying apparatus for decontaminating an inner surface of a contaminated tube bundle of a steam generator is provided to efficiently remove contaminated radionuclides from an inconel tube. CONSTITUTION: A spraying nozzle(11) sprays abrasive to the inner surface of an inconel tube. A protection room(12) induces the abrasive after the inner side of the inconel tube is decontaminated. A cyclone(13) generates negative pressure to move the abrasive to the protection room. A storage tank(15) reuses the abrasive after the abrasive collected by the cyclone is stored. A dust collector(16) collects and removes inconel dust and abrasive dust. A control plate(17) controls the operation of an apparatus.
Bibliography:Application Number: KR20100111036