JP5595110B2 - ヨウ素フィルタのリーク試験方法、リーク試験装置及びフッ素含有試薬 - Google Patents
ヨウ素フィルタのリーク試験方法、リーク試験装置及びフッ素含有試薬 Download PDFInfo
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Description
第8の発明は、第1の発明から第3の発明の何れか一つに用いられるフッ素含有試薬であって、組成式が(C3F7)3−Nで表される化合物、組成式がC6F13OCH3で表される化合物、組成式がCF3(CF2)5CH2CH3(C3F13H5)で表される化合物、又は組成式が(CH2CHFCF2CF2CF2)で表される化合物であるフッ素含有試薬である。
本実施形態に係るヨウ素フィルタのリーク試験装置10を用いて行なわれるヨウ素フィルタ20のリーク率の評価方法について具体的に説明する。フッ素含有試薬30を含む試料ガス33はフッ素含有試薬供給管32のノズル孔32aからチャンバ13内へ噴出され、ヨウ素フィルタ20の上流側にフッ素含有試薬30を数分間導入する。ヨウ素フィルタ20の上流側と下流側とで第1のガス採取管41と第2のガス採取管43とからフッ素含有試薬30を含む試料ガス33を採取する。フッ素含有試薬30は試料ガス33中に水分として含まれており、採取したフッ素含有試薬30を第1のガスクロマトグラフ42と第2のガスクロマトグラフ44とにより測定し、下記式(1)よりヨウ素フィルタ20のリーク率を求める。下記式(1)中、Aは、ヨウ素フィルタ20の下流側におけるフッ素含有試薬30の濃度であり、Bは、ヨウ素フィルタ20の上流側におけるフッ素含有試薬30の濃度であり、Cは、ヨウ素フィルタ20の下流側における第2のガスクロマトグラフ44との検出限界濃度であり、Dは、ヨウ素フィルタ20の上流側における第1のガスクロマトグラフ42の検出限界濃度である。
リーク率(%)=(A−C)/(B−D)×100・・・(1)
11 排ガス(被処理ガス)
12 ダクト
13 チャンバ(容器)
14 ヨウ素吸着部
15 フッ素含有試薬供給部
16 第1のフッ素含有試薬濃度測定部
17 第2のフッ素含有試薬濃度測定部
20 ヨウ素フィルタ
21 ガスケット
22 ガス導入孔
23 ガス導入部
23a 連結部
24 ヨウ素吸着材
25 フィルタ本体
26 後板
30 フッ素含有試薬
31 フッ素含有試薬貯留部
32 フッ素含有試薬供給管
32a ノズル孔
33 試料ガス
41 第1のガス採取管
42 第1のガスクロマトグラフ
43 第2のガス採取管
44 第2のガスクロマトグラフ
45 制御装置
Claims (8)
- 原子力施設から排出される放射性ヨウ素を含む被処理ガスが送給されるダクト又はチャンバ内に前記被処理ガスに含まれる放射性ヨウ素をヨウ素吸着材により除去するヨウ素フィルタのリークを検知するヨウ素フィルタのリーク試験方法であり、
前記ヨウ素フィルタより上流側に塩素を含まないフッ素含有試薬を供給し、前記ヨウ素フィルタの上流側および下流側における前記フッ素含有試薬の濃度を測定し、前記ヨウ素フィルタを通過するフッ素含有試薬のリーク率を求めることを特徴とするヨウ素フィルタのリーク試験方法。 - 請求項1において、
前記フッ素含有試薬として、フッ素および炭素を含み、水素と酸素と窒素との少なくとも一つ以上を更に含むと共に、塩素を含まない化合物を用いるヨウ素フィルタのリーク試験方法。 - 請求項1又は2において、
前記フッ素含有試薬は、その大気圧下における沸点が70℃以上であるヨウ素フィルタのリーク試験方法。 - 放射性ヨウ素を含有する被処理ガスが送給されるダクト又はチャンバ内に設けられ、前記被処理ガスに含まれる放射性ヨウ素を吸着するヨウ素吸着材を含むヨウ素フィルタと、
前記ダクト又はチャンバ内に設けられ、前記ダクト又はチャンバ内に塩素を含まないフッ素含有試薬を供給するフッ素含有試薬供給部と、
前記ヨウ素フィルタの上流側および下流側に設けられ、前記フッ素含有試薬の濃度を測定するフッ素含有試薬濃度測定部と、
を含むことを特徴とするヨウ素フィルタのリーク試験装置。 - 請求項4において、
前記フッ素含有試薬は、フッ素および炭素を含み、水素と酸素と窒素との少なくとも一つ以上を更に含むと共に、塩素を含まない化合物であるヨウ素フィルタのリーク試験装置。 - 請求項4又は5において、
前記フッ素含有試薬は、その大気圧下における沸点が70℃以上であるヨウ素フィルタのリーク試験装置。 - 請求項4乃至6の何れか1つにおいて、
前記被処理ガスが、原子力施設から排出される排ガスであるヨウ素フィルタのリーク試験装置。 - 請求項1から請求項3の何れか1項に記載のヨウ素フィルタのリーク試験方法に用いられるフッ素含有試薬であって、
組成式が(C3F7)3−Nで表される化合物、組成式がC6F13OCH3で表される化合物、組成式がCF3(CF2)5CH2CH3(C3F13H5)で表される化合物、又は組成式が(CH2CHFCF2CF2CF2)で表される化合物であるフッ素含有試薬。
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JP2010108638A JP5595110B2 (ja) | 2010-05-10 | 2010-05-10 | ヨウ素フィルタのリーク試験方法、リーク試験装置及びフッ素含有試薬 |
US13/697,073 US8919184B2 (en) | 2010-05-10 | 2011-04-25 | Leak testing method and leak testing device for iodine filter |
EP11780500.2A EP2571030B1 (en) | 2010-05-10 | 2011-04-25 | Method and device for testing for leaks in iodine filters |
PCT/JP2011/060080 WO2011142243A1 (ja) | 2010-05-10 | 2011-04-25 | ヨウ素フィルタのリーク試験方法及びリーク試験装置 |
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CN103903660B (zh) * | 2012-12-26 | 2016-12-28 | 中国辐射防护研究院 | 一种卤素发生器 |
CN104826448A (zh) * | 2015-04-15 | 2015-08-12 | 中国核电工程有限公司 | 一种碘吸附装置 |
JP6188753B2 (ja) * | 2015-08-03 | 2017-08-30 | 三菱重工業株式会社 | 放射性よう素吸着材の保管装置および保管方法 |
CN110095233A (zh) * | 2018-01-31 | 2019-08-06 | 中国辐射防护研究院 | 一种碘吸附器泄漏率的检测系统与检测方法 |
CN110068434B (zh) * | 2019-03-29 | 2021-05-18 | 中国辐射防护研究院 | 用于碘吸附器泄漏率检测的脉冲式环己烷气体冷发生器 |
CN110715975A (zh) * | 2019-09-03 | 2020-01-21 | 中国辐射防护研究院 | 一种用非放射性甲基碘评价碘吸附器效率的在线测量设备及其方法 |
CN112051006B (zh) * | 2020-09-09 | 2023-03-10 | 广东冠电科技股份有限公司 | 一种基于工业互联网的仪表仪器设备在线监测装置 |
JP7490551B2 (ja) | 2020-12-25 | 2024-05-27 | 大陽日酸株式会社 | 気密試験方法 |
CN116892387B (zh) * | 2023-07-10 | 2024-05-24 | 河南省科学院同位素研究所有限责任公司 | 一种油田气驱监测用放射性同位素示踪剂的制备方法 |
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JPS59126281A (ja) * | 1983-01-07 | 1984-07-20 | Nippon Atom Ind Group Co Ltd | 放射性ヨウ素除去フイルタのリ−ク検出方法 |
JP3071057B2 (ja) | 1993-01-22 | 2000-07-31 | 株式会社日立製作所 | 吸着剤充填フィルタのリーク検出方法及び装置 |
JPH07148418A (ja) * | 1993-11-30 | 1995-06-13 | Hitachi Ltd | ヨウ素フィルタのリーク試験方法及びその試験装置 |
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US20050211949A1 (en) * | 2003-11-13 | 2005-09-29 | Bivens Donald B | Detectable refrigerant compositions and uses thereof |
US7752892B2 (en) * | 2006-09-07 | 2010-07-13 | Matheson Tri-Gas | Leak characterization apparatuses and methods for fluid storage containers |
JP5247291B2 (ja) * | 2008-08-07 | 2013-07-24 | Agcセイミケミカル株式会社 | はんだ用フラックス這い上がり防止組成物、該組成物を被覆したはんだ用電子部材、該部材のはんだ付け方法および電気製品 |
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EP2571030A4 (en) | 2015-03-18 |
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