[특허]Reactor vessel head permanent shield

[미국특허] Reactor vessel head permanent shield 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G21C-011/02
출원번호	US-0576644 (1984-02-03)
발명자 / 주소	Hankinson Michael F. (Monroeville PA) Leduc Robert J. (Columbia MD) Richard Joseph W. (West Mifflin PA) Malandra Louis J. (Elizabeth Township Allegheny Co. PA)
출원인 / 주소	Westinghouse Electric Corp. (Pittsburgh PA 02)
인용정보	피인용 횟수 : 9 인용 특허 : 13

초록 ▼

A radiation shield (10) is comprised of three, equiangularly extending, arcuate sections (14) which are secured to the nuclear reactor pressure vessel closure head (12) so as to annularly surround the nuclear reactor control rod drive mechanisms (26) and thereby prevent radiation emanating from the mechanisms (26) from reaching maintenance personnel who may be operatively working within the peripheral section (20) of the closure head. The shield sections (14) are bolted together by fasterners (18) and are secured to closure head lift lugs (30) by means of mounting brackets (38) and transversely extending pins (36). Clevis assemblies (34) are also pinned to the mounting brackets (38) and lift lugs (30), and lift rods (32) are threadedly engaged with the clevis assemblies (34). In this manner, when the closure head (12) is lifted from its associated pressure vessel, the radiation shield (10) remains with the closure head (12). Thermocouple electrical connector and control rod drive mechanism coolant air exhaust port access panels (68) (74) are respectively provided within the radiation shield (10), and an emergency water-gas vent line (76) is likewise accommodated by an access panel (78) also defined within the radiation shield (10). The shield (10) is vertically spaced above the closure head (12) so as to define a gap (82) therebetween, and auxiliary hinged shield panels (192) may be secured along the bottom of the shield (110) to close the gap (182).

대표청구항 ▼

A nuclear reactor, comprising: a nuclear reactor pressure vessel closure head; a plurality of control rod drive mechanisms (CRDMs) disposed within said closure head so as to project vertically above said closure head; cooling air baffle means surrounding said control rod drive mechanisms for defining cooling air paths relative to said control rod drive mechanisms; means defined within the periphery of said closure head for accomodating fastening means for securing said closure head to its associated pressure vessel; a plurality of lifting lugs fixedly secured to said closure head for facilitating lifting and lowering movements of said closure head relative to said pressure vessel; a plurality of lift rods respectively operatively associated with said plurality of lifting lugs for transmitting load forces, developed during said lifting and lowering movements of said closure head, to said plurality of lifting lugs; upstanding radiation shield means interposed between said cooling air baffle means and said periphery of said enclosure head for shielding maintenance personnel operatively working upon said closure head fastening means from the effects of radiation which may emanate fron said control rod drive mechanisms and said cooling air baffle means; and a plurality of connecting systems respectively associated with each one of said lifting lugs and each one of said lifting rods for connecting said each one of said lifting rods to a respective one of said each one of said lifting lugs, and for simultaneously connecting a lower end portion of said upstanding radiation shield means to each one of said respective lifting lugs.

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

Desfontaines Guy (Paris FRX) Le Helloco Michel (Paris FRX), Control unit for a nuclear reactor.
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Guilloteau Rene (Verrieres le Buisson FRX) Segui Jacques (Fresnes FRX), Joining apparatus between a transportation container and a horizontal wall of a discharge.
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Malandra Louis J. (Elizabeth Township ; Allegheny County PA) Leduc Robert J. (Columbia MD) Hankinson Michael F. (Monroeville PA) Kowalski Edward F. (Pittsburgh PA), Modular head assembly and method of retrofitting existing nuclear reactor facilities.
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Jacobson Earl B. (510 S. Shore Dr. Crystal Lake IL 60014), Modular reactor head shielding system.
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Klotz ; Robert J. ; Stephen ; Donald W., Nuclear reactor cavity streaming shield.
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Pennell ; William E. ; Kalinowski ; Joseph E. ; Waldby ; Robert N. ; Ry latt ; John A. ; Swenson ; Daniel V., Nuclear reactor removable radial shielding assembly having a self-bowing feature.
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Mazur Joseph M. (Ludlow MA) Matteson Donn M. (South Windsor CT), Nuclear reactor vessel head equipment support structure.
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Hankinson Michael F. (Monroeville Boro PA), Pivotably mounted reactor shroud shield and shielding method.
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Gross ; Heiko, Pressure vessel for nuclear reactor.
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Gagneraud Francis (6 ; avenue des Tilleuls Paris FRX 75016), Process for making protective barriers against radioactive products.
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Meuschke Robert E. (Pittsburgh PA) Wolfe Donald L. (Allison Park PA), Radiation shield ring assembly and method of disassembling components of a nuclear steam generator using such assembly.
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Aoki ; Masataka, Radiation shielding device for nuclear facilities.
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Jacobson Earl B. (510 S. Shore Dr. Crystal Lake IL 60014), Reactor head shielding system.
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이 특허를 인용한 특허 (9) 인용/피인용 타임라인 분석

Bauer Frank I. (Perry PA) Mavretish Robert S. (New Stanton PA) Grimm Noel P. (Monroeville PA), Coffer dam for temporary shielding of reactor vessel internals.
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Harkness Alexander Whitecross ; Hankinson Michael Francis, Head assembly.
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Baliga, Ravi; Choi, Key Y., Integrated head assembly for a nuclear reactor.
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Baliga, Ravi; Choi, Key Y., Integrated head assembly for a nuclear reactor.
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Baliga,Ravi; Choi,Key Y., Integrated head assembly for a nuclear reactor.
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Harkness Alexander Whitecross ; Hankinson Michael Francis, Missile shield for a nuclear reactor pressure vessel.
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Baliga, Ravi, Modular integrated head assembly.
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Kang, Tae-Kyo; Kim, Hyun-Min; Kwon, Young-Ju; Cho, Kwang-Hee; Yoon, Ki-Seok; Kim, In-Yong; Cho, Yeon-Ho; Lee, Myoung-Goo, Modular reactor head area assembly.
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Frank, Courtney B.; Conrad, Michael D.; Himler, Jeffrey C.; Erdman, Daniel J.; Heinz Carnicelli, Michelle, Reactor head seismic support tie rod system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Reactor vessel head permanent shield 원문보기

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이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (9) 인용/피인용 타임라인 분석

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이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

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