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Bibliographic Record
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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 根本 隆弘荒川 了紀川上 悟長住 達横山 佳祐渡部 雅大西 貴士川本 大樹古澤 孝之猪井 宏幸野尻 直喜飯垣 和彦齋藤 賢司堀 直彦
- Publication Date
- 2023-05
- Publication Date (W3CDTF)
- 2023
- Alternative Title
- Differential pressure rise event for filters of HTTR primary helium gas circulators, 1; Investigation of differential pressure rise event
- Periodical title
- JAEA-Technology 2023-005
- Target Audience
- 一般
- Note (General)
- 出版タイプ: NAHTTR (High Temperature engineering Test Reactor) RS-14サイクルの原子炉出力降下において、ヘリウムガス循環機のフィルタ差圧が上昇傾向となった。この原因を調査するため、1次ヘリウム純化設備のガス循環機の分解点検等を実施した結果、ガス循環機内のシリコンオイルミストがチャコールフィルタの性能低下で捕集できなくなり、1次系統に混入したためと推定された。今後は、フィルタ交換を実施するとともに、さらなる調査を進め、再発防止対策を策定する予定である。During shut down of the HTTR (High Temperature engineering Test Reactor) RS-14 cycle, an increasing trend of filter differential pressure for the helium gas circulator was observed. In order to investigate this phenomenon, the blower of the primary helium purification system was disassembled and inspected. As a result, it is clear that the silicon oil mist entered into the primary coolant due to the deterioration of the charcoal filter performance. The replacement and further investigation of the filter are planning to prevent the reoccurrence of the same phenomenon in the future.
- Source
- /JAEA-Technology-2023-005.pdf (fulltext)