高レベル放射性物質研究施設(CPF)における保全活動への取組み「Ⅰ. 高放射性物質閉じ込め用負圧コントロール弁の経年劣化への対応」


英字タイトル:
Maintenance activities in Chemical Processing Facility 1. Renewal of driving unit of negative pressure control valves
著者:
小林 雄樹 Yuki KOBAYASHI 高橋 哲郎 Teturo TAKAHASHI 篠崎 忠宏 Tadahiro SHINOZAKI 小笠原 甲士 Kouji OGASAWARA 小泉 健治 Kenji KOIZUMI 中島 靖雄 Yasuo NAKAZIMA
発刊日:
公開日:
カテゴリ: 第7回
キーワードタグ:

概要

The negative pressure control valve is reliable apparatus which has been used in many nuclear facilities. In recent years, there are some troubles on those valves in CPF (Chemical Processing Facility) by the aged deterioration because the valves were kept using for more than 25 years after facility had operated. Therefore, we have been c arrying out renewal of driving units of the valves to assure performance of negative pressure control function and to keep stability of operation of the facility. In this presentation, we report knowledge provided through the renewal work, such as the renewal procedure, the deterioration situation of components and the cause of troubles.


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