[특허]Flexible armored pipe

NATIONAL OILWELL VARCO DENMARK I/S

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Flexible armored pipe

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-011/00 F16L-011/08 F16L-011/16
출원번호	US-0980105 (2012-01-19)
등록번호	US-9458956 (2016-10-04)
우선권정보	DK-2011 00037 (2011-01-20); DK-2011 00099 (2011-02-14)
국제출원번호	PCT/DK2012/050021 (2012-01-19)
§371/§102 date	20131001 (20131001)
국제공개번호	WO2012/097823 (2012-07-26)
발명자 / 주소	Gudme, Jonas Glejbol, Kristian Cappeln, Christian Ditlev
출원인 / 주소	NATIONAL OILWELL VARCO DENMARK I/S
대리인 / 주소	Pearne & Gordon LLP
인용정보	피인용 횟수 : 0 인용 특허 : 47

초록
▼

The invention relates to a flexible armored pipe for transportation of fluids, comprising an inner sealing sheath and at least one displacement reduced armor layer comprising a plurality of elongate elements comprising at least a female type elongate element comprising at least one recess in each opposite side and a male type elongate element comprising at least one protruding tongue in each opposite side and wherein each of the female type and the male type elongate elements are substantially symmetrical in a symmetry line substantially normal to the in...

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1. A flexible armored pipe for transportation of fluids, having a center axis and a length and comprising an inner sealing sheath and at least one displacement reduced armor layer comprising a plurality of elongate elements comprising at least a female type elongate element with a first cross-sectional profile and a male type elongate element with a second cross-sectional profile that is different from the first cross-sectional profile such that the female type and the male type elongate elements have different respective shapes, each of the female type and the male type elongate elements are substantially symmetrical in a symmetry line substantially normal to the inner sealing sheath when the pipe is in a non-bended state, the elongate elements are helically wound to provide elongate element windings of alternately a female type elongate element winding and a male type elongate element winding along the length of the pipe, the female type elongate element windings have a first and a second opposite side facing adjacent male type elongate element windings and comprising each a recess, the male type elongate element windings has a first and a second opposite side facing adjacent female type elongate element windings and comprising each a protruding tongue, wherein said protruding tongues of said male type elongate element windings are laterally engaged in said recesses of adjacent female type elongate element windings, and wherein the protruding tongues of the male type elongate element windings are engaged with the recesses of the adjacent female type elongate element windings in a direction that is perpendicular to a winding angle of the male type or the female type elongate element windings relative to the center axis of the pipe. 2. The flexible armored pipe as claimed in claim 1, wherein the protruding tongues of the male type elongate element windings protrude exclusively in one direction. 3. The flexible armored pipe as claimed in claim 1 wherein the protruding tongues of the male type elongate element windings are engaged laterally with recesses of adjacent female type elongate element windings without said protruding tongues being interlocked in said recesses. 4. The flexible armored pipe as claimed in claim 1, wherein the protruding tongues of the male type elongate element windings are not radially engaged with recesses of adjacent female type elongate element windings. 5. The flexible armored pipe as claimed in claim 1, wherein the female type elongate element windings comprise two or more recesses in each of its first and second sides. 6. The flexible armored pipe as claimed in claim 5, wherein the male type elongate element windings comprise two or more protruding tongues in each of its first and second sides, the protruding tongues are engaged in said recesses of adjacent female type elongate element windings. 7. The flexible armored pipe as claimed in claim 1 wherein the female type elongate element windings additionally comprise a protruding tongue in each of its first and second sides and the male type elongate element windings additionally comprise a recess in each of its first and second sides, the additional tongues are engaged in the additional recess. 8. The flexible armored pipe as claimed in claim 1 wherein the protruding tongues of said male type elongate element windings are shaped to fit into and substantially fill out the recesses of adjacent female type elongate element windings. 9. The flexible armored pipe as claimed in claim 1 wherein the protruding tongues of said male type elongate element windings are shaped to fit into the recesses of adjacent female type elongate element windings, leaving a helical gap between the respective tongue and recess. 10. The flexible armored pipe as claimed in claim 1 wherein the alternating female type elongate element windings and male type elongate element windings are arranged with no additional elements between the respective adjacent female type and male type windings. 11. The flexible armored pipe as claimed in claim 1, wherein the alternating female type elongate element windings and male type elongate element windings are arranged with at least one distance element to regulate or control the distance between the respective adjacent female type and male type windings in particular during production of the flexible pipe. 12. The flexible armored pipe as claimed in claim 1 wherein the alternating female type elongate element windings and male type elongate element windings are arranged with at least one distance element between the respective adjacent female type and male type windings. 13. The flexible armored pipe as claimed in claim 12, wherein the at least one distance element is arranged between respective protruding tongues of said male type elongate element windings and recesses of adjacent female type elongate element winding. 14. The flexible armored pipe as claimed in claim 1 wherein female type elongate element(s) and the male type elongate element(s) each have a height determined as the maximal height determined in radial direction perpendicular to the axis of the pipe, the height of respectively the female type elongate element(s) and the male type elongate element(s) being up to about 20% different from each other. 15. The flexible armored pipe as claimed in claim 1 wherein the female type elongate element(s) and the male type elongate element(s) each have a height determined as the maximal height determined in radial direction perpendicular to the axis of the pipe, the height of respectively the female type elongate element(s) and the male type elongate element(s) being substantially identical. 16. The flexible armored pipe as claimed in claim 1 wherein the female type elongate element(s) and the male type elongate element(s) each have a height determined in radial direction perpendicular to the axis of the pipe, and a body width, which is determined as the maximal width of the elongate element in a cross-sectional cut and perpendicular to the height while excluding any tongues, the body width of respectively the female type elongate element(s) and the male type elongate element(s) being up to about 80% different from each other based on the body width of the elongate element with the largest body width. 17. The flexible armored pipe as claimed in claim 1 wherein the female type elongate element(s) and the male type elongate element(s) each have a front side facing towards the axis of the pipe and a rear side facing away from the axis of the pipe, at least one of the front side and the rear side of each of the female type elongate element(s) and the male type elongate element(s) are substantially flat. 18. The flexible armored pipe as claimed in claim 16, wherein the female type elongate element(s) and the male type elongate element(s) each have a front side facing towards the axis of the pipe, the front side of each of the female type elongate element(s) and the male type elongate element(s) are substantially flat and have front side widths, the front side width of the female type elongate element(s) is substantially identical to the body width of the female type elongate element(s) and the front side width of the male type elongate element(s) is substantially identical to the body width of the male type elongate element(s). 19. The flexible armored pipe as claimed in claim 16, wherein the female type elongate element(s) and the male type elongate element(s) each have a rear side facing away from the axis of the pipe, the rear side of each of the female type elongate element(s) and the male type elongate element(s) are substantially flat and have rear side widths, the rear side width of the female type elongate element(s) is substantially identical to the body width of the female type elongate element(s) and the rear side width of the male type elongate element(s) is substantially identical to the body width of the male type elongate element(s). 20. The flexible armored pipe as claimed in claim 1 wherein the female type elongate element windings and the male type elongate element windings each have a front side facing towards the axis of the pipe, the front side of a plurality of the female type elongate element windings and/or a plurality of the male type elongate element windings comprise at least one recess. 21. A flexible armored pipe for transportation of fluids, having a center axis and a length and comprising an inner sealing sheath and at least one displacement reduced armor layer comprising a plurality of elongate elements comprising at least a female type elongate element with a first cross-sectional profile and a male type elongate element with a second cross-sectional profile, each of the female type and the male type elongate elements are substantially symmetrical in a symmetry line substantially normal to the inner sealing sheath when the pipe is in a non-bended state, the elongate elements are helically wound to provide elongate element windings of alternately a female type elongate element winding and a male type elongate element winding along the length of the pipe, the female type elongate element windings have a first and a second opposite side facing adjacent male type elongate element windings and comprising each a recess, the male type elongate element windings has a first and a second opposite side facing adjacent female type elongate element windings and comprising each a protruding tongue, wherein said protruding tongues of said male type elongate element windings are laterally engaged in said recesses of adjacent female type elongate element windings, and wherein the protruding tongues of the male type elongate element windings are engaged with the recesses of the adjacent female type elongate element windings in a direction that is perpendicular to a winding angle of the male type or the female type elongate element windings relative to the center axis of the pipe, wherein the female type elongate element windings and the male type elongate element windings each have a rear side facing away from the axis of the pipe, the rear side of a plurality of the female type elongate element windings and/or a plurality of male type elongate element windings comprise at least one recess. 22. The flexible armored pipe as claimed in claim 20 wherein the flexible armored pipe comprises at least one locking element comprising a first and a second flange protruding away from the axis of the pipe, each of the first and the second flange of the locking element are engaged in a recess of the front side of one of a female type elongate element winding and a male type elongate element winding, to thereby lock two or more windings to each other. 23. The flexible armored pipe as claimed in claim 20 wherein the alternating female type elongate element windings and male type elongate element windings are arranged with at least one distance element to regulate or control the distance between the respective adjacent female type and male type windings in particular during production of the flexible pipe and wherein the at least one distance element is arranged between the locking element and recesses of elongate element windings of the female type and/or of the male type. 24. The flexible armored pipe as claimed in claim 22 wherein the at least one locking element is in the form of at least one elongate locking element which is helically wound to provide elongate locking element windings and wherein the first and the second flanges of the at least one locking element are engaged in recesses of adjacent elongate element windings. 25. The flexible armored pipe as claimed in claim 21 wherein the flexible armored pipe comprises at least one locking element comprising a first and a second flange protruding towards the axis of the pipe, each of the first and the second flange of the locking element are engaged in a recess of the rear side of one of a female type elongate element winding and a male type elongate element winding, to thereby lock two or more windings to each other. 26. The flexible armored pipe as claimed in claim 25 wherein the at least one locking element is in the form of at least one elongate locking element which is helically wound to provide elongate locking element windings and wherein the first and the second flanges of the at least one locking element are engaged in recesses of adjacent elongate element windings. 27. The flexible armored pipe as claimed in claim 25 wherein the alternating female type elongate element windings and male type elongate element windings are arranged with at least one distance element to regulate or control the distance between the respective adjacent female type and male type windings in particular during production of the flexible pipe and wherein the at least one distance element is arranged between the locking element and recesses of elongate element windings of the female type and/or of the male type.

이 특허에 인용된 특허 (47)

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Flexible armored pipe

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Flexible armored pipe

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