[특허]Suction strainer with an internal core tube

[미국특허] Suction strainer with an internal core tube 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G21C-019/307 B01D-035/027
출원번호	US-0137595 (1998-08-21)
발명자 / 주소	Dwyer Paul M. Hart Gordon H. Nuzman Carl E. Pinsky Gordon P.
출원인 / 주소	Performance Contracting, Inc.
대리인 / 주소	Womble Carlyle Sandridge & RiceIsaf
인용정보	피인용 횟수 : 9 인용 특허 : 9

초록 ▼

A suction strainer includes a hollow internal core tube and an external filtering surface built around the internal core tube. A plurality of openings are defined through the side wall of the internal core tube core. In some cases the openings through the side wall are constructed and arranged such that there is somewhat less open area near the downstream end than the upstream end of the internal core tube, and the amount of open area tapers between the upstream end and the downstream end. As a result, when liquid is drawn into the internal core tube through the plurality of openings, a substantially uniform inflow distribution may be defined along substantially the entire length of the internal core tube. The internal core tube functions as a rigid structural support for the external filtering surface, enabling the apparatus to withstand post-LOCA hydrodynamic forces. The size of the filtering surface is enlarged by virtue of the fact that the filtering surface defines a plurality of filtering disk assemblies that are connected to and extend radially from the internal core tube. A separation distance is defined between neighboring disk assemblies, and filtering inner walls connect between neighboring disk assemblies and extend around the internal core tube at a radius less than the outermost radius of the disk assemblies. The total flow surface area is increased within a limited geometric profile. This serves to maximize surface area while minimizing post-LOCA reactive forces on attachment ECCS piping in a BWR suppression pool.

대표청구항 ▼

[ We claim:] [12.] A suction strainer for connection to a suction pipe of a pump to remove solids from liquid drawn through said suction strainer by the pump, said suction strainer comprising:an elongated core tube having a plurality of spaced flow openings passing therethrough and defining a core chamber therein, said core tube having at least one open end; andan exterior screening structure positioned along and structurally supported by said core tube, said exterior screening structure including a plurality of perforated plate assemblies defining a screening chamber between said plurality of plate assemblies and said core tube, and a plurality of spaced structural members extending radially from and angularly displaced along a core wall of said core tube, said structural members disposed between said core tube and said plate assemblies and being constructed and arranged to structurally support said plate assemblies on said core tube.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

Fink Leonhard (Frankfurt DT), Apparatus and process for drawing water from a water-bearing strata.
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Romanco Vincent P. (Naperville IL), Filter cartridge having gasket seal employing pressure ridges to prevent leakage.
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Stephan Wolfgang (Grevenbroich DEX), Floating suction extractor for skimming liquids having a tendency to foam.
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Bilanin Alan J. ; Kaufman Andrew E., High capacity, low head loss, suction strainer for nuclear reactors.
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Netkowicz Robert J. (Erie PA) Schnall Ira H. (Erie PA) Kraeling ; Jr. John B. (Erie PA), Mechanical strainer unit.
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Van Der Borght Jacques A. (29 ; Rue du long Chne ; B-1970 Wezembeek-Oppem BEX), Method and apparatus to improve well water quality.
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Nazareno Edgardo V. (San Jose CA) Dillmann Charles W. (Morgan Hill CA), Reactor-core isolation cooling system with dedicated generator.
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Kielbowicz Stanislaw,CHX, Screen for inlet opening of a pump.
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Whitebay Lee E. (Ponca City OK) Morita Nobuo (Ponca City OK), Well screen with increased outer surface area.
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이 특허를 인용한 특허 (9) 인용/피인용 타임라인 분석

Veinbergs, Edgar, Adjustable liquid strainer.
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Browning, Andrew L., Debris filter with splitter bar.
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Barnes, William Roy, Environmentally friendly water extraction device.
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Smith, James Aaron; Patel, Atul Harihar; Carr, Jr., Louis Thomas, Filter medium for strainers used in nuclear reactor emergency core cooling systems.
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Andersen, Charles; Wolbert, Edward; Hawkins, Nicholas, High capacity suction strainer for an emergency core cooling system in a nuclear power plant.
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Watson, Mark, Screen intake device for shallow water.
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Kim, Sang Yeol; Kim, Hyeong Teak; Kim, Chang Hyun; Lee, Sang Won; Woo, Jong In, Strainer wall structure including curved sections.
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Oh, Seung Jong; Kim, Sang Yeol; Kim, Hyeong Teak; Kim, Chang Hyun; Lee, Sang Won; Woo, Jong In, Strainers for emergency core cooling systems—ECCS.
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Paul M. Dwyer ; Gordon H. Hart ; Carl E. Nuzman ; Gordon P. Pinsky, Suction strainer with an internal core tube.
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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] Suction strainer with an internal core tube 원문보기