JP2005265443A5 - - Google Patents

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Publication number
JP2005265443A5
JP2005265443A5 JP2004074455A JP2004074455A JP2005265443A5 JP 2005265443 A5 JP2005265443 A5 JP 2005265443A5 JP 2004074455 A JP2004074455 A JP 2004074455A JP 2004074455 A JP2004074455 A JP 2004074455A JP 2005265443 A5 JP2005265443 A5 JP 2005265443A5
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Japan
Prior art keywords
temperature
radioactive substance
gas
sealed container
shielding structure
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JP2004074455A
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Japanese (ja)
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JP2005265443A (en
JP4274470B2 (en
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Priority to JP2004074455A priority Critical patent/JP4274470B2/en
Priority claimed from JP2004074455A external-priority patent/JP4274470B2/en
Publication of JP2005265443A publication Critical patent/JP2005265443A/en
Publication of JP2005265443A5 publication Critical patent/JP2005265443A5/ja
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Publication of JP4274470B2 publication Critical patent/JP4274470B2/en
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放射性物質が収納されると共に加圧ガスが充填された密閉容器と、前記密閉容器が収容される遮蔽構造体と、前記遮蔽構造体の下部側に形成される給気口および上部側に形成される排気口と、前記密閉容器と前記遮蔽構造体との間に形成されて前記給気口および前記排気口とを繋ぐ流路とを有し、前記放射性物質を遮蔽すると共に前記給気口から前記流路を介して前記排気口へと移動する冷却ガスにより前記放射性物質から発生する熱を奪って冷却する放射性物質貯蔵容器について、前記加圧ガスの漏洩を検知する方法において、前記密閉容器の頂面および底面の温度と前記冷却ガスの給気温度を監視しこれらの温度変化に基づいてガス漏洩を検知することを特徴とする放射性物質密閉容器のガス漏洩検知方法。 A sealed container containing a radioactive substance and filled with a pressurized gas, a shielding structure in which the sealed container is accommodated, an air supply port formed on a lower side of the shielding structure, and an upper side. And an air outlet formed between the airtight container and the shielding structure to connect the air supply port and the exhaust port, and shields the radioactive substance from the air supply port. In a method of detecting leakage of the pressurized gas in a radioactive material storage container that cools by removing heat generated from the radioactive material by a cooling gas that moves to the exhaust port through the flow path, A method for detecting a gas leak in a radioactive substance sealed container, comprising: monitoring a temperature of a top surface and a bottom surface and a supply temperature of the cooling gas and detecting a gas leak based on a change in the temperature. 前記頂面の中心位置および前記底面の中心位置の温度を監視することを特徴とする請求項１記載の放射性物質密閉容器のガス漏洩検知方法。   The gas leakage detection method for a radioactive substance sealed container according to claim 1, wherein the temperature at the center position of the top surface and the center position of the bottom surface is monitored. 前記底面温度と前記頂面温度との差の値を監視して、当該値の変化と前記冷却ガスの給気温度の温度変化に基づいてガス漏洩を検知することを特徴とする請求項１または２記載の放射性物質密閉容器のガス漏洩検知方法。 The value of the difference between the bottom surface temperature and the top surface temperature is monitored, and gas leakage is detected based on the change of the value and the temperature change of the supply temperature of the cooling gas. 2. A gas leakage detection method for a radioactive substance sealed container according to 2. 前記底面温度と前記頂面温度との差の値が上昇し、尚且つ前記給気温度が低下する場合に、ガス漏洩と判断することを特徴とする請求項１から３のいずれか１つに記載の放射性物質密閉容器のガス漏洩検知方法。 Increases the value of the difference between the pre-Symbol bottom temperature and the top surface temperature, noted when and the supply air temperature is lowered, any one of claims 1 to 3, characterized in that it is determined that the gas leakage Gas leakage detection method for radioactive substance sealed container according to 1. 放射性物質が収納されると共に加圧ガスが充填された密閉容器と、前記密閉容器が収容される遮蔽構造体と、前記遮蔽構造体の下部側に形成される給気口および上部側に形成される排気口と、前記密閉容器と前記遮蔽構造体との間に形成されて前記給気口および前記排気口とを繋ぐ流路とを有し、前記放射性物質を遮蔽すると共に前記給気口から前記流路を介して前記排気口へと移動する冷却ガスにより前記放射性物質から発生する熱を奪って冷却する放射性物質貯蔵容器について、前記加圧ガスの漏洩を検知する装置において、前記密閉容器の頂面および底面の温度と前記冷却ガスの給気温度を監視しこれらの温度変化に基づいてガス漏洩を検知することを特徴とする放射性物質密閉容器のガス漏洩検知装置。 A sealed container containing a radioactive substance and filled with a pressurized gas, a shielding structure in which the sealed container is accommodated, an air supply port formed on a lower side of the shielding structure, and an upper side. And an air outlet formed between the airtight container and the shielding structure to connect the air supply port and the exhaust port, and shields the radioactive substance from the air supply port. In a device for detecting leakage of pressurized gas, a radioactive substance storage container that cools by taking heat generated from the radioactive substance by a cooling gas that moves to the exhaust port through the flow path. A gas leakage detection device for a radioactive substance sealed container, wherein the temperature of the top surface and the bottom surface and the supply temperature of the cooling gas are monitored and gas leakage is detected based on the temperature change.
JP2004074455A 2004-03-16 2004-03-16 Method and apparatus for detecting gas leakage in a radioactive substance sealed container Expired - Lifetime JP4274470B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004074455A JP4274470B2 (en) 2004-03-16 2004-03-16 Method and apparatus for detecting gas leakage in a radioactive substance sealed container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004074455A JP4274470B2 (en) 2004-03-16 2004-03-16 Method and apparatus for detecting gas leakage in a radioactive substance sealed container

Publications (3)

Publication Number Publication Date
JP2005265443A JP2005265443A (en) 2005-09-29
JP2005265443A5 true JP2005265443A5 (en) 2007-07-05
JP4274470B2 JP4274470B2 (en) 2009-06-10

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Family Applications (1)

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JP2004074455A Expired - Lifetime JP4274470B2 (en) 2004-03-16 2004-03-16 Method and apparatus for detecting gas leakage in a radioactive substance sealed container

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6529401B2 (en) 2015-09-16 2019-06-12 一般財団法人電力中央研究所 Apparatus, method and program for detecting gas leakage of radioactive substance sealed container
US10145754B2 (en) 2015-10-14 2018-12-04 Central Research Institute Of Electric Power Industry Method and apparatus for detecting gas leakage from radioactive material sealed container
JP6945920B2 (en) * 2015-10-30 2021-10-06 一般財団法人電力中央研究所 Cooling air amount control device for concrete cask and concrete cask
CN108735324A (en) * 2017-11-23 2018-11-02 江苏核电有限公司 A kind of off-line equipment for the cooling of spent fuel transport container helium purification
JP7062472B2 (en) * 2018-03-14 2022-05-06 一般財団法人電力中央研究所 Gas leak detection method and equipment in horizontal canister
JP6985188B2 (en) * 2018-03-19 2021-12-22 株式会社神戸製鋼所 Heat transfer test equipment for containers used to transport and / or store spent fuel
JP6968010B2 (en) * 2018-03-19 2021-11-17 株式会社神戸製鋼所 Heat transfer test equipment for containers used to transport and / or store spent fuel
CN108956695B (en) * 2018-07-27 2020-11-03 黑龙江大学 Photo-thermal catalysis gas leakage sensor based on fiber bragg grating detection and detection method thereof
JP7450407B2 (en) * 2019-03-07 2024-03-15 日立造船株式会社 Method and device for detecting loss of canister seal, canister and concrete storage container
JP7429493B2 (en) 2019-04-26 2024-02-08 日立造船株式会社 Method and device for detecting loss of sealing of metal cask, and metal cask
CN113008473B (en) * 2021-03-09 2023-10-10 浙江南方智慧水务有限公司 Gas tightness detecting system after stainless steel secondary water supply tank manufacturing shaping
CN113899504A (en) * 2021-09-23 2022-01-07 深圳华尔升智控技术有限公司 Helium mass spectrometer leak detector with safety protection function

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