[특허]Crude oil pipe having layers of graduated permeability to hydrogen sulfide

Crude oil pipe having layers of graduated permeability to hydrogen sulfide 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-011/00 F16L-055/00
출원번호	US-0415691 (1982-09-07)
우선권정보	GB-0010055 (1978-03-14)
발명자 / 주소	Cheetham Ivan C. (Sutton Coldfield GB2) Lowe Jack M. (Sutton Coldfield GB2) Redmond Glyn H. (Birmingham GB2)
출원인 / 주소	Dunlop Limited (London GB2 03)
인용정보	피인용 횟수 : 55 인용 특허 : 0

초록 ▼

A pipe for transporting crude oil comprises a layer of polymeric material for containing oil within the bore of the pipe, the polymeric material being surrounded and supported by a reinforcement structure comprising high tensile reinforcement elements which are protected from corrosion by gases passing from the polymeric layer through the reinforcement structure. The reinforcement element may be provided with a protective sheath, for example of low permeability material or a material which possesses electrolytic action, or the reinforcement element may be embedded in a matrix of high permeability material such that a preferential path is provided for the passage of gases through the reinforcement structure.

대표청구항 ▼

A pipe for transporting crude oil therethrough and having a preferential path through the wall of the pipe for passage of a gas emanating from the crude oil, said pipe comprising: (a) a plurality of superposed annular layers, the innermost lining layer being surrounded by a fluoroplastic sealing layer which is resistant to oil penetration but permits passage of a gas therethrough; (b) a reinforcement structure radially outwards of the sealing layer, said structure comprising successive helical turns, spaced along the length of the pipe, of at least one steel cord, each said at least one steel cord being surrounded by a protective sheath; (c) said protective sheath comprising a layer of a material having a permeability of less than 10×10-8 (cm3 cm/s/cm2/bar) in respect of hydrogen sulphide at 20°C.; (d) a matrix material surrounding said sheathed steel cord and being of a material of high permeability compared with the material of the sheath, that permeability being greater than 150×10-8 (cm3 cm/s/cm2/bar) in respect of hydrogen sulphide at 20°C., said matrix acting to position longitudinally the helical turns in relation to each other and to define a preferential path of high gas permeability for passage of gas through the reinforcement structure; (e) an outer cover surrounding the reinforcement structure and being of high gas permeability.

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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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Crude oil pipe having layers of graduated permeability to hydrogen sulfide 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (55)

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연합인증

Crude oil pipe having layers of graduated permeability to hydrogen sulfide 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (55)

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