[특허]Boiling water nuclear plant and steam dryer

Boiling water nuclear plant and steam dryer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G21C-015/16 B01D-053/54 G21C-015/00 B01D-053/00
출원번호	US-0030189 (2011-02-18)
등록번호	US-8774342 (2014-07-08)
우선권정보	JP-2010-048564 (2010-03-05)
발명자 / 주소	Hino, Yuko Ishida, Kazushige Usui, Naoshi
출원인 / 주소	Hitachi-GE Nuclear Energy, Ltd.
대리인 / 주소	Crowell & Moring LLP
인용정보	피인용 횟수 : 0 인용 특허 : 31

초록 ▼

In the boiling water nuclear plant of the present invention, a steam dryer is disposed in a reactor pressure vessel. Materials that have capability of capturing nitrogen compounds containing N-16 are supported on porous member. The porous members are placed in a region where steam goes through in the steam dryer. For example, both or either of perforated plates installed in the steam dryer is constituted of the porous member on which N-16 capture material is supported. When steam containing N-16 goes through the perforated plates, the N-16 is captured by the porous member, whereby the N-16 transfer amount into the turbine system is reduced.

대표청구항 ▼

1. A boiling water nuclear plant, comprising: a reactor pressure vessel;a steam dryer disposed in said reactor pressure vessel; andeither at least one first porous member on which a material that captures radioactive nitrogen compounds is supported or at least one second porous member constituted of said material,wherein said first or second porous member is placed at a region through which steam goes in said steam dryer. 2. The boiling water nuclear plant according to claim 1, wherein said first porous member is a perforated plate installed in said steam dryer. 3. The boiling water nuclear plant according to claim 2, wherein a radioactive nitrogen compound capture device having said first porous member is placed in at least one of a steam inlet side and a steam outlet side of said perforated plate installed in the steam dryer. 4. The boiling water nuclear plant according to claim 3, wherein said material captures at least one of ammonia and nitrogen monoxide by at least one function from adsorption reaction, chemical reaction, and catalytic action. 5. The boiling water nuclear plant according to claim 2, wherein said material captures at least one of ammonia and nitrogen monoxide by at least one function from adsorption reaction, chemical reaction, and catalytic action. 6. The boiling water nuclear plant according to claim 1, wherein said material captures at least one of ammonia and nitrogen monoxide by at least one function from adsorption reaction, chemical reaction, and catalytic action. 7. The boiling water nuclear plant according to claim 1, wherein said first or second porous member is constituted of at least one from metal, metal compound, metal carbide, and metal nitride. 8. A steam dryer placed in a nuclear pressure vessel of a boiling water nuclear plant, wherein either at least one first porous member on which a material that captures radioactive nitrogen compounds is supported or at least one second porous member constituted of said material is placed at a region through which steam goes in said steam dryer. 9. The steam dryer of a boiling water nuclear plant according to claim 8, wherein said first porous member is a perforated plate installed in said steam dryer. 10. The steam dryer of a boiling water nuclear plant according to claim 8, wherein said first porous member is disposed in a device placed in at a steam inlet side and a steam outlet side of said perforated plate installed in the steam dryer.

이 특허에 인용된 특허 (31)

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Miyoshi Naoto,JPX ; Tanizawa Tuneyuki,JPX ; Ishibashi Kazunobu,JPX ; Kasahara Koichi,JPX ; Tateishi Syuji,JPX, Catalyst for purifying exhaust gases.
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Cowan ; II Robert L. (Livermore CA) Gordon Gerald M. (Soquel CA) Law Robert J. (Livermore CA) McAllister Beth A. (San Jose CA), Internal passive catalytic ammonia converter for reduction of main steam dose rate associated with hydrogen water chemis.
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Muramatsu Gyo (Kumagaya JPX) Abe Akira (Kumagaya JPX) Yoshida Kiyohide (Kumagaya JPX) Sumiya Satoshi (Kumagaya JPX) Matsumura Nobuyuki (Kumagaya JPX) Takahashi Yoshikazu (Kumagaya JPX), Method of cleaning exhaust gas.
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Niino Tsuyoshi (Hitachi JPX) Nakayama Tadakazu (Hitachi JPX) Tsuruoka Ryozo (Hitachi JPX) Miki Minoru (Hitachi JPX) Iwata Nobukatsu (Hitachi JPX) Koyama Kazuhito (Hitachi JPX), Natural circulation type boiling light-water reactor.
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IPC	Description
A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Boiling water nuclear plant and steam dryer 원문보기

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