JPS6044020A - Apparatus for removing hydrogen gas in high temperature and high pressure steam - Google Patents

Apparatus for removing hydrogen gas in high temperature and high pressure steam

Info

Publication number
JPS6044020A
JPS6044020A JP58151052A JP15105283A JPS6044020A JP S6044020 A JPS6044020 A JP S6044020A JP 58151052 A JP58151052 A JP 58151052A JP 15105283 A JP15105283 A JP 15105283A JP S6044020 A JPS6044020 A JP S6044020A
Authority
JP
Japan
Prior art keywords
hydrogen
metal
pressure steam
high pressure
hydrogen gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP58151052A
Other languages
Japanese (ja)
Inventor
Hiroshi Katsuta
勝田　博司
Hideo Ono
大野　英雄
Tetsuyuki Konishi
哲之 小西
Hiroshi Kawamura
弘 河村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Atomic Energy Agency
Original Assignee
Japan Atomic Energy Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Atomic Energy Research Institute filed Critical Japan Atomic Energy Research Institute
Priority to JP58151052A priority Critical patent/JPS6044020A/en
Publication of JPS6044020A publication Critical patent/JPS6044020A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

PURPOSE:To adsorb hydrogen in steam with a metal having hydrogen absorbing capacity, by coating the outside of a sintered metal tube, in which the metal having hydrogen absorbing capacity is received, with a hydrogen pervious metal membrane which is, in turn, brought into contact with high temp. and high pressure steam containing hydrogen. CONSTITUTION:In a light-water reactor using zircaloy in the fuel coating pipe thereof, because high temp. and high pressure steam is reacted with zircaloy to generate hydrogen which in turn induces explosion, hydrogen is removed. Because of this, a hydrogen permeable membrane 1 comprising a Pd-Ag alloy or Ni is provided to the outside of a tubular container 2 comprising a sintered metal of Ni or stainless steel and the interior thereof is packed with a Y metal 3 having strong hydrogen adsorbing property. This structure is placed in high temp. and high pressure steam containing hydrogen by a support tool 4 and hydrogen in steam is allowed to react the Y metal and hydride through the metal membrane 1 and the sintered metal 2 to remove hydrogen.

Description

【発明の詳細な説明】 本発明は高温・高圧水蒸気中の水素ガスを除去する装置
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for removing hydrogen gas from high temperature, high pressure steam.

従来技術の説明 軽水炉は燃料被覆管にジルカロイを使用しており、この
ジルカロイと水（又は水蒸気）との反応により水素ガス
が生成し、これが−次冷却水系内に存在する。また事故
等により温度が異常に上昇した場合は、その反応により
著しい量の水素ガスが発生することが予想されろ。事実
１９７９年に発生した米国スリーマイルズ島（ＴＭＩ）
の原子炉事故においては一次冷却水系内での水素爆発が
検出されている。従って、高温・高圧水蒸気中の水素ガ
スケ除去する技術が必要であるが、高温・高圧水蒸気中
に直接挿入して水素ガスヶ除去する装置は従来存在しな
かった。Description of the Prior Art Light water reactors use Zircaloy in their fuel cladding tubes, and the reaction of this Zircaloy with water (or steam) produces hydrogen gas, which is present in the secondary cooling water system. In addition, if the temperature rises abnormally due to an accident or the like, it is expected that a significant amount of hydrogen gas will be generated due to the reaction. In fact, Three Miles Island (TMI) in the United States occurred in 1979.
In nuclear reactor accidents, hydrogen explosions were detected in the primary cooling water system. Therefore, there is a need for a technology to remove hydrogen gas from high temperature, high pressure steam, but there has been no existing device that can be inserted directly into high temperature, high pressure steam to remove hydrogen gas.

（２） 発明の要約 本発明の目的は高温・高圧水蒸気中から水素ガスを直接
除去する装置火提供することにある。(2) Summary of the Invention An object of the present invention is to provide a device for directly removing hydrogen gas from high-temperature, high-pressure steam.

本発明の別の目的は高温・高圧水蒸気中から水素ガスを
除去することによって燃料被覆管ジルカロイの腐食を防
止すると共に事故時等の水素爆発を防止し、原子炉の安
全性を高めることである。Another object of the present invention is to remove hydrogen gas from high-temperature, high-pressure steam to prevent corrosion of Zircaloy fuel cladding tubes, prevent hydrogen explosions in the event of an accident, and improve the safety of nuclear reactors. .

本発明の他の目的および利点は以下遂次明らかにされる
。Other objects and advantages of the present invention will become apparent in the following.

明の詳細な説明 本発明の高温・高圧水蒸気中から水素ガスを直接除去す
る装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for directly removing hydrogen gas from high-temperature, high-pressure steam.

本発明は（イ１焼結金属で画定された小室、（ロ）該焼
結金属で支持され該焼結金属の外表面を被覆する水素透
過能の大きな金属薄膜および（ハ）該小室に充填された
水素吸収能の大きな金属から主として構成され高温・高
圧水蒸気中で発生した水素ガスを該金属薄膜を透過させ
、水素吸収能の大きな金属に吸収させて除去する装置に
関する。The present invention provides (1) a small chamber defined by sintered metal, (b) a metal thin film with a high hydrogen permeability supported by the sintered metal and covering the outer surface of the sintered metal, and (c) filled in the small chamber. The present invention relates to a device which is mainly composed of a metal having a high hydrogen absorption capacity, and which allows hydrogen gas generated in high-temperature, high-pressure steam to permeate through the metal thin film and remove it by being absorbed by the metal with a large hydrogen absorption capacity.

本発明の装置の構成な図面に基づいて説明する。The configuration of the apparatus of the present invention will be explained based on the drawings.

（３） 図は本発明の装置の一例の縦断面図である。図において
、■は水素透過能の大きな金属薄膜、■は焼結金属、■
は水素吸収能の大きな金属、■は本装置を高温・高王水
蒸気中へ保持するための支持具である。(3) The figure is a longitudinal sectional view of an example of the device of the present invention. In the figure, ■ is a metal thin film with high hydrogen permeability, ■ is a sintered metal, and ■ is a metal thin film with high hydrogen permeability.
is a metal with high hydrogen absorption capacity, and ■ is a support for holding this device in high-temperature, high-temperature steam.

本発明な高温・高圧水蒸気中に設置すると高温・高圧水
蒸気中（軽水炉の場合約３５０’Ｃ，８０〜１００　気
圧）中に存在する水素ガスは、■の金属薄膜を拡散透過
し、■のイツトリウム金属に吸収除去される。吸収され
た水素は、イツトリウム金属中では非常に安定であり、
再放出はほとんどない。■の焼結金属は■の金属薄膜を
周囲の水蒸気の高圧から守るためのものであり、水素の
拡散透過の抵抗にはならない。又、その形状はチューブ
が好ましい。このチューブの厚さは水蒸気圧力に十分耐
えるように設計されており、金属としてはＮ１　あるい
は８ＵＳが望ましい。■の水素吸収能の大きな金属はイ
ツトリウムが望ましく、スポンジ又はチップ状等接触面
積を出来るだけ大きくする形状をとる。又、イツトリウ
ム金属の量は除去しく４） ようとする水素量により決められるが、　ＹＨ８，の組
成まで水素ガスを吸収させることができる。■の金属薄
膜の厚さと面積は目的とする水素ガスの除去速度によっ
て決定され、高温水中で表面に酸化被膜を作らず水素透
過能の大きな金属で、水素脆化が生じないもの１例えば
Ｐｄ　−Ａｇ　合金やＮｉ等が好ましい。When the present invention is installed in high-temperature, high-pressure steam, the hydrogen gas present in the high-temperature, high-pressure steam (approximately 350'C, 80 to 100 atmospheres in the case of a light water reactor) diffuses and permeates the metal thin film (2), and the yttrium gas (2) Absorbed by metal. Absorbed hydrogen is very stable in yttrium metal;
There is almost no re-release. The sintered metal (2) is used to protect the metal thin film (2) from the high pressure of surrounding water vapor, and does not act as a resistance to the diffusion and permeation of hydrogen. Moreover, its shape is preferably a tube. The thickness of this tube is designed to sufficiently withstand water vapor pressure, and the metal is preferably N1 or 8US. Yttrium is preferable as the metal with a high hydrogen absorption capacity (3), and the shape is such as a sponge or a chip that the contact area is as large as possible. Although the amount of yttrium metal is determined by the amount of hydrogen to be removed, it is possible to absorb hydrogen gas up to a composition of YH8. The thickness and area of the metal thin film (2) are determined by the desired hydrogen gas removal rate.It is a metal that does not form an oxide film on the surface in high-temperature water, has a high hydrogen permeability, and does not cause hydrogen embrittlement.1For example, Pd - Ag alloy, Ni, etc. are preferable.

従来技術では、高温高圧水中から水素ガスを直接除去す
ることはできなかったが１本発明により。Conventional technology has not been able to directly remove hydrogen gas from high-temperature, high-pressure water, but the present invention does so.

それが可能となる。これにより被覆管ジルカロイの腐食
防止に役立つとともに事故時等の水素爆発防止に役立ち
、原子炉の安全性を高めることができる。That becomes possible. This helps prevent corrosion of the Zircaloy cladding tube, and also helps prevent hydrogen explosions in the event of an accident, increasing the safety of the nuclear reactor.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の一例の縦断面図である。 特許出願人　日本原子力研究所 （５） The figure is a longitudinal sectional view of an example of the present invention. Patent applicant: Japan Atomic Energy Research Institute (5)

Claims (1)

【特許請求の範囲】 １、イ、焼結金属で画定された小室； ロ、該焼結金属で支持され該焼結金属の外表面な被覆す
る水素透過能の大きな金属薄膜；および ・・、該小室に充填された水素吸収能の大きな金属から
主として構成されろ高温・高圧水蒸気中から水素ガスを
除去する装置。 ２、焼結金属がチューブである特許請求の範囲第１項記
載の装＃。 ３、焼結金属がＮ１　あるいはＳＯ８である特許請求の
範囲第１項記載の装置。 ４、水素透過能の大きな金属がＰｄ−Ａｇ合金又はＮ１
　である特許請求の範囲第１項記載の装置。 ５、水素吸収能の大きな金属がスポンジ又はチップ状で
ある特許請求の範囲第１項記載の装置。 ６、水素吸収能の大きな金属かイツトリウムであ（１） る特許請求の範囲第１項記載の装置。[Scope of Claims] 1. A. A small chamber defined by sintered metal; B. A metal thin film with high hydrogen permeability supported by the sintered metal and covering the outer surface of the sintered metal; and... A device for removing hydrogen gas from high-temperature, high-pressure steam, which is mainly composed of a metal with a large hydrogen absorption capacity filled in the small chamber. 2. The device according to claim 1, wherein the sintered metal is a tube. 3. The device according to claim 1, wherein the sintered metal is N1 or SO8. 4. The metal with high hydrogen permeability is Pd-Ag alloy or N1
An apparatus according to claim 1. 5. The device according to claim 1, wherein the metal having a large hydrogen absorption capacity is in the form of a sponge or a chip. 6. The device according to claim 1, wherein the metal is yttrium (1), which has a large hydrogen absorption capacity.
JP58151052A 1983-08-19 1983-08-19 Apparatus for removing hydrogen gas in high temperature and high pressure steam Pending JPS6044020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58151052A JPS6044020A (en) 1983-08-19 1983-08-19 Apparatus for removing hydrogen gas in high temperature and high pressure steam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58151052A JPS6044020A (en) 1983-08-19 1983-08-19 Apparatus for removing hydrogen gas in high temperature and high pressure steam

Publications (1)

Publication Number Publication Date
JPS6044020A true JPS6044020A (en) 1985-03-08

Family

ID=15510244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58151052A Pending JPS6044020A (en) 1983-08-19 1983-08-19 Apparatus for removing hydrogen gas in high temperature and high pressure steam

Country Status (1)

Country Link
JP (1) JPS6044020A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181941A (en) * 1991-12-16 1993-01-26 Texaco Inc. Membrane and separation process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115094A (en) * 1973-02-21 1974-11-02
JPS5352928U (en) * 1976-09-30 1978-05-06
JPS5633599A (en) * 1979-08-28 1981-04-04 Japan Atomic Energy Res Inst Purifier capable of continuous recovery of tritium*used for helium cooling medium for highhtemperature gas furnace
JPS5723042A (en) * 1980-07-15 1982-02-06 Mitsubishi Atom Power Ind Inc Apparatus for purifying liquid metal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115094A (en) * 1973-02-21 1974-11-02
JPS5352928U (en) * 1976-09-30 1978-05-06
JPS5633599A (en) * 1979-08-28 1981-04-04 Japan Atomic Energy Res Inst Purifier capable of continuous recovery of tritium*used for helium cooling medium for highhtemperature gas furnace
JPS5723042A (en) * 1980-07-15 1982-02-06 Mitsubishi Atom Power Ind Inc Apparatus for purifying liquid metal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181941A (en) * 1991-12-16 1993-01-26 Texaco Inc. Membrane and separation process

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