Sealed, thermally insulating vessel comprising a corner part
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F17C-001/12
F17C-013/08
B63B-027/34
B63B-003/68
B63B-025/16
B63B-027/25
F17C-003/02
F17C-001/02
출원번호
US-0911389
(2014-08-14)
등록번호
US-9862463
(2018-01-09)
우선권정보
FR-13 58031 (2013-08-15)
국제출원번호
PCT/FR2014/052094
(2014-08-14)
국제공개번호
WO2015/022473
(2015-02-19)
발명자
/ 주소
Boyeau, Marc
출원인 / 주소
Gaztransport ET Technigaz
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
Sealed and thermally insulating tank in which a first tank wall and an adjacent second tank wall form an edge, the tank further including a sealed corner piece fixed in a sealed manner to the sealing membrane of the first tank wall and of the second tank wall, the corner piece including a sheet meta
Sealed and thermally insulating tank in which a first tank wall and an adjacent second tank wall form an edge, the tank further including a sealed corner piece fixed in a sealed manner to the sealing membrane of the first tank wall and of the second tank wall, the corner piece including a sheet metal corner angle-iron situated in line with the edge, a first reinforcing flange, a second reinforcing flange, a first locking piece, a second locking piece wherein the locking pieces are fixed to the insulating barrier, the first reinforcing flange and the second reinforcing flange each include a tab fixed to the lower face of the first and second locking pieces, respectively.
대표청구항▼
1. A sealed and thermally insulating tank intended to be integrated into a polyhedral supporting structure, the tank including a plurality of plane tank walls, each tank wall including at least one insulating barrier and at least one sealing membrane, said insulating barrier consisting of a pluralit
1. A sealed and thermally insulating tank intended to be integrated into a polyhedral supporting structure, the tank including a plurality of plane tank walls, each tank wall including at least one insulating barrier and at least one sealing membrane, said insulating barrier consisting of a plurality of thermal insulation elements, each thermal insulation element including a block of insulating foam, said insulating barrier carrying a plurality of metal sealing plates fixed to one another in a sealed manner in order to form the sealing membrane, wherein a first tank wall and an adjacent second tank wall form an edge, the tank further including a sealed corner piece situated at the level of the edge, the corner piece including: a sheet metal corner angle-iron situated along the edge, the corner angle-iron including a first section that extends in the plane of the sealing membrane of the first tank wall and a second section that extends in the plane of the sealing membrane of the second tank wall,a first reinforcing flange and a second reinforcing flange, each reinforcing flange including a respective membrane section and a respective anchor section;a first locking piece and a second locking piece; wherein the first and second sections of the corner angle-iron or the first and second reinforcing flanges of the corner piece are fixed in a sealed manner on the one hand to a metal edge plate of the sealing membrane of the first tank wall and on the other hand to a metal edge plate of the sealing membrane of the second tank wall, and in which: an insulating barrier of the first tank wall includes a first clearance formed in the blocks of insulating foam along the edge,an insulating barrier of the second tank wall includes a second clearance formed in the insulating foam blocks along the edge, the first clearance and the second clearance conjointly forming a groove situated along the edge,a membrane section of the first reinforcing flange extends in the plane of the sealing membrane of the first tank wall between the first section of the corner angle-iron and the insulating barrier of the first tank wall or the first locking piece, the first section of the corner angle-iron being fixed to the membrane section of the first reinforcing flange,a membrane section of the second reinforcing flange extends in the plane of the sealing membrane of the second tank wall between the second section of the corner angle-iron and the insulating barrier of the second tank wall or the second locking piece, the second section of the corner angle-iron being fixed to the membrane section of the second reinforcing flange,an anchor section of the first reinforcing flange, an anchor section of the second reinforcing flange and the first and second locking pieces being accommodated in the groove,the first locking piece is fixed to the insulating barrier of the first tank wall in the first clearance and has an upper surface covered by the membrane section of the first reinforcing flange,the second locking piece is fixed to the insulating barrier of the second tank wall in the second clearance and has an upper surface covered by the membrane section of the second reinforcing flange,the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a junction section arranged, when the corner piece has been fitted, between the two locking pieces and respectively extending from the membrane section of the first reinforcing flange, respectively second reinforcing flange, to a bottom of the groove,the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a tab bent against a lower face of the first locking piece, respectively the second locking piece, and arranged at the bottom of the groove,a tab of the first reinforcing flange is fixed to the lower face of the first locking piece and a tab of the second reinforcing flange is fixed to the lower face of the second locking piece. 2. The tank as claimed in claim 1, wherein: the first clearance includes on the one hand an internal lateral surface extending in the direction of the thickness of the tank wall and on the other hand a bottom,the second clearance includes on the one hand an internal lateral surface extending within the thickness of the tank wall and on the other hand a bottom, the bottom of the first clearance and the bottom of the second clearance conjointly forming the bottom of the groove,the first locking piece includes an external lateral surface opposite the second locking piece, the external lateral face of the first locking piece being fixed to the internal lateral face of the first clearance,the second locking piece includes an external lateral surface opposite the first locking piece, the external lateral face of the second locking piece is fixed to the internal lateral face of the second clearance,the lower face of the first locking piece and the tab of the first reinforcing flange are fixed to the bottom of the first clearance,the lower face of the second locking piece and the tab of the second reinforcing flange are fixed to the bottom of the second clearance. 3. The tank as claimed in claim 1, wherein the lower face of the first locking piece and the lower face of the second locking piece each include a spot facing in which are accommodated the tabs of the first reinforcing flange and of the second reinforcing flange, respectively, and in which a surface of the lower face of the first locking piece not including the spot facing is fixed to the bottom of the first clearance and a surface of the lower face of the second locking piece not including the spot facing is fixed to the bottom of the second clearance. 4. The tank as claimed in claim 1, wherein the first locking piece is connected to the second locking piece by a mechanical element engaged in the locking pieces perpendicularly to the edge. 5. The tank as claimed in claim 4, wherein the mechanical element includes a screw associated with a nut. 6. The tank as claimed in claim 4, wherein: each locking piece consists of an elongate beam extending along the edge, the beam of the first locking piece extending parallel to the beam of the second locking piece,a plurality of mechanical elements connect the first locking piece and the second locking piece along the beam,the anchor section of the reinforcing flanges extends between the two locking pieces between two consecutive mechanical elements and is interrupted at the level of the mechanical elements. 7. The tank as claimed in claim 4, wherein the insulating barrier of the first tank wall and the insulating barrier of the second tank wall each have an edge surface extending parallel to each other in the direction of the thickness of the tank wall, the edge surfaces of the insulating barrier of the first tank wall and of the second tank wall not being fixed together, and wherein the mechanical element connecting the first locking piece and the second locking piece is elastically deformable in a direction perpendicular to the edge surfaces of the insulating barrier so that the connection between the first locking piece and the second locking piece is elastic. 8. The tank as claimed in claim 1, wherein each wall of the tank includes, from the interior of the tank toward the exterior of the tank: a primary sealing membrane formed of the plurality of metal sealing plates fixed to one another in a sealed manner,a primary insulating barrier,a secondary sealing membrane formed by a layer of composite film, anda secondary insulating barrier, and in which the primary and secondary insulating barriers each include juxtaposed blocks of insulating foam, the foam blocks of the primary insulating barrier being glued to the secondary sealing membrane, the secondary sealing membrane being glued to the foam blocks of the secondary insulating barrier, the foam blocks of the primary insulating barrier of the first tank wall including the first clearance disposed along the edge and the foam blocks of the primary insulating barrier of the second tank wall including the second clearance disposed along the edge. 9. The tank as claimed in claim 8, wherein the first clearance and the second clearance are formed throughout the thickness of the blocks of insulating foam of the primary insulating barrier of the first tank wall and the second tank wall, respectively, so that the bottom of the groove is formed by the sealed composite film layer of the secondary sealing membrane of the first tank wall and the second tank wall, respectively. 10. The tank as claimed in claim 9, wherein the corner angle-iron includes a lower corner sheet and a superposed upper corner sheet fixed to one another, and wherein the membrane sections of the reinforcing flanges are fixed to the lower corner sheet and the first and second sections of the upper corner sheet cooperate with the edge plates of the primary sealing membrane of the first tank wall and the second tank wall, respectively. 11. The tank as claimed in claim 8, wherein the first locking piece has a length in the plane of the first tank wall greater than the thickness of the primary insulating barrier and wherein the second locking piece has a length in the plane of the second tank wall greater than the thickness of the primary insulating barrier. 12. The tank as claimed in claim 1 wherein the tank has a polygonal cylinder overall shape, the plane walls of the tank including a bottom wall of polygonal shape and a plurality of peripheral lateral walls around the bottom wall and each upstanding from a respective side of the polygonal bottom wall, the tank including a plurality of said corner pieces, each corner piece being arranged at the level of the edge formed between one side of the bottom wall and the corresponding lateral wall. 13. The tank as claimed in claim 1, wherein the insulating barrier of the first tank wall and the insulating barrier of the second tank wall each have an edge surface extending parallel to each other in the direction of the thickness of the tank wall, the edge surfaces of the insulating barrier of the first tank wall and of the second tank wall being glued together. 14. The tank as claimed in claim 1, wherein the anchor section of one of the reinforcing flanges includes, in a plane perpendicular to the edge, a stiffener connecting the junction section and the tab of the reinforcing flange, the locking piece covered by the membrane section of said reinforcing flange including a groove in which the stiffener is accommodated. 15. The tank as claimed in claim 14, wherein a plurality of stiffeners are situated on each reinforcing flange and spaced regularly along the bend between the tab and the junction section, each locking piece including a plurality of grooves in which the plurality of stiffeners are accommodated. 16. The tank as claimed in claim 1, wherein the angle-iron is a continuous metal sheet, the angle-iron and the reinforcing flanges of the corner piece being made of sheet metal with a low coefficient of expansion. 17. The tank as claimed in claim 1, wherein the tab of the first reinforcing flange and the tab of the second reinforcing flange are fixed against the first locking piece and the second locking piece, respectively, by a screw. 18. The tank as claimed in claim 1, wherein the sealing membrane of the first tank wall is fixed in a sealed manner to the first section of the corner angle-iron and wherein the sealing membrane of the second tank wall is fixed in a sealed manner to the second section of the corner angle-iron. 19. The tank as claimed in claim 1, wherein the corner angle-iron extends along the axis of the edge toward the exterior of the corner piece beyond the locking pieces. 20. The tank as claimed in claim 1, wherein the corner angle-iron includes a wave oriented towards the interior of the tank and developed perpendicularly to the edge. 21. A ship for the transportation of a cold liquid product, the ship including: a double hull; anda sealed and thermally insulating tank disposed in the double hull, the tank including a plurality of plane tank walls, each tank wall including at least one insulating barrier and at least one sealing membrane, said insulating barrier consisting of a plurality of thermal insulation elements, each thermal insulation element including a block of insulating foam, said insulating barrier carrying a plurality of metal sealing plates fixed to one another in a sealed manner in order to form the sealing membrane, wherein a first tank wall and an adjacent second tank wall form an edge, the tank further including a sealed corner piece situated at the level of the edge, the corner piece including: a sheet metal corner angle-iron situated along the edge, the corner angle-iron including a first section that extends in the plane of the sealing membrane of the first tank wall and a second section that extends in the plane of the sealing membrane of the second tank wall;a first reinforcing flange and a second reinforcing flange, each reinforcing flange including a respective membrane section and a respective anchor section;a first locking piece and a second locking piece;wherein the first and second sections of the corner angle-iron or the first and second reinforcing flanges of the corner piece are fixed in a sealed manner on the one hand to a metal edge plate of the sealing membrane of the first tank wall and on the other hand to a metal edge plate of the sealing membrane of the second tank wall, and in which;an insulating barrier of the first tank wall includes a first clearance formed in the blocks of insulating foam along the edge;an insulating barrier of the second tank wall includes a second clearance formed in the insulating foam blocks along the edge, the first clearance and the second clearance conjointly forming a groove situated along the edge;a membrane section of the first reinforcing flange extends in the plane of the sealing membrane of the first tank wall between the first section of the corner angle-iron and the insulating barrier of the first tank wall or the first locking piece, the first section of the corner angle-iron being fixed to the membrane section of the first reinforcing flange;a membrane section of the second reinforcing flange extends in the plane of the sealing membrane of the second tank wall between the second section of the corner angle-iron and the insulating barrier of the second tank wall or the second locking piece, the second section of the corner angle-iron being fixed to the membrane section of the second reinforcing flange;an anchor section of the first reinforcing flange, an anchor section of the second reinforcing flange and the first and second locking pieces being accommodated in the groove;the first locking piece is fixed to the insulating barrier of the first tank wall in the first clearance and has an upper surface covered by the membrane section of the first reinforcing flange;the second locking piece is fixed to the insulating barrier of the second tank wall in the second clearance and has an upper surface covered by the membrane section of the second reinforcing flange;the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a junction section arranged, when the corner piece has been fitted, between the two locking pieces and respectively extending from the membrane section of the first reinforcing flange, respectively second reinforcing flange, to a bottom of the groove;the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a tab bent against a lower face of the first locking piece, respectively the second locking piece, and arranged at the bottom of the groove; anda tab of the first reinforcing flange is fixed to the lower face of the first locking piece and a tab of the second reinforcing flange is fixed to the lower face of the second locking piece. 22. A method of loading or offloading a ship, comprising: obtaining a ship, the ship including; a double hull; anda sealed and thermally insulating tank disposed in the double hull, the tank including a plurality of plane tank walls, each tank wall including at least one insulating barrier and at least one sealing membrane, said insulating barrier consisting of a plurality of thermal insulation elements, each thermal insulation element including a block of insulating foam, said insulating barrier carrying a plurality of metal sealing plates fixed to one another in a sealed manner in order to form the sealing membrane, wherein a first tank wall and an adjacent second tank wall form an edge, the tank further including a sealed corner piece situated at the level of the edge, the corner piece including: a sheet metal corner angle-iron situated along the edge, the corner angle-iron including a first section that extends in the plane of the sealing membrane of the first tank wall and a second section that extends in the plane of the sealing membrane of the second tank wall;a first reinforcing flange and a second reinforcing flange, each reinforcing flange including a respective membrane section and a respective anchor section;a first locking piece and a second locking piece;wherein the first and second sections of the corner angle-iron or the first and second reinforcing flanges of the corner piece are fixed in a sealed manner on the one hand to a metal edge plate of the sealing membrane of the first tank wall and on the other hand to a metal edge plate of the sealing membrane of the second tank wall, and in which;an insulating barrier of the first tank wall includes a first clearance formed in the blocks of insulating foam along the edge;an insulating barrier of the second tank wall includes a second clearance formed in the insulating foam blocks along the edge, the first clearance and the second clearance conjointly forming a groove situated along the edge;a membrane section of the first reinforcing flange extends in the plane of the sealing membrane of the first tank wall between the first section of the corner angle-iron and the insulating barrier of the first tank wall or the first locking piece, the first section of the corner angle-iron being fixed to the membrane section of the first reinforcing flange;a membrane section of the second reinforcing flange extends in the plane of the sealing membrane of the second tank wall between the second section of the corner angle-iron and the insulating barrier of the second tank wall or the second locking piece, the second section of the corner angle-iron being fixed to the membrane section of the second reinforcing flange;an anchor section of the first reinforcing flange, an anchor section of the second reinforcing flange and the first and second locking pieces being accommodated in the groove;the first locking piece is fixed to the insulating barrier of the first tank wall in the first clearance and has an upper surface covered by the membrane section of the first reinforcing flange;the second locking piece is fixed to the insulating barrier of the second tank wall in the second clearance and has an upper surface covered by the membrane section of the second reinforcing flange;the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a junction section arranged, when the corner piece has been fitted, between the two locking pieces and respectively extending from the membrane section of the first reinforcing flange, respectively second reinforcing flange, to a bottom of the groove;the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a tab bent against a lower face of the first locking piece, respectively the second locking piece, and arranged at the bottom of the groove; anda tab of the first reinforcing flange is fixed to the lower face of the first locking piece and a tab of the second reinforcing flange is fixed to the lower face of the second locking piece; androuting cold liquid product via insulated pipes from or to a floating storage installation or a storage installation on land to or from the tank of the ship. 23. A transfer system for a cold liquid product, including: a ship, the ship including; a double hull; anda sealed and thermally insulating tank disposed in the double hull, the tank including a plurality of plane tank walls, each tank wall including at least one insulating barrier and at least one sealing membrane, said insulating barrier consisting of a plurality of thermal insulation elements, each thermal insulation element including a block of insulating foam, said insulating barrier carrying a plurality of metal sealing plates fixed to one another in a sealed manner in order to form the sealing membrane, wherein a first tank wall and an adjacent second tank wall form an edge, the tank further including a sealed corner piece situated at the level of the edge, the corner piece including: a sheet metal corner angle-iron situated along the edge, the corner angle-iron including a first section that extends in the plane of the sealing membrane of the first tank wall and a second section that extends in the plane of the sealing membrane of the second tank wall;a first reinforcing flange and a second reinforcing flange, each reinforcing flange including a respective membrane section and a respective anchor section;a first locking piece and a second locking piece;wherein the first and second sections of the corner angle-iron or the first and second reinforcing flanges of the corner piece are fixed in a sealed manner on the one hand to a metal edge plate of the sealing membrane of the first tank wall and on the other hand to a metal edge plate of the sealing membrane of the second tank wall, and in which;an insulating barrier of the first tank wall includes a first clearance formed in the blocks of insulating foam along the edge;an insulating barrier of the second tank wall includes a second clearance formed in the insulating foam blocks along the edge, the first clearance and the second clearance conjointly forming a groove situated along the edge;a membrane section of the first reinforcing flange extends in the plane of the sealing membrane of the first tank wall between the first section of the corner angle-iron and the insulating barrier of the first tank wall or the first locking piece, the first section of the corner angle-iron being fixed to the membrane section of the first reinforcing flange;a membrane section of the second reinforcing flange extends in the plane of the sealing membrane of the second tank wall between the second section of the corner angle-iron and the insulating barrier of the second tank wall or the second locking piece, the second section of the corner angle-iron being fixed to the membrane section of the second reinforcing flange;an anchor section of the first reinforcing flange, an anchor section of the second reinforcing flange and the first and second locking pieces being accommodated in the groove;the first locking piece is fixed to the insulating barrier of the first tank wall in the first clearance and has an upper surface covered by the membrane section of the first reinforcing flange;the second locking piece is fixed to the insulating barrier of the second tank wall in the second clearance and has an upper surface covered by the membrane section of the second reinforcing flange;the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a junction section arranged, when the corner piece has been fitted, between the two locking pieces and respectively extending from the membrane section of the first reinforcing flange, respectively second reinforcing flange, to a bottom of the groove;the anchor section of the first reinforcing flange and the anchor section of the second reinforcing flange each include a tab bent against a lower face of the first locking piece, respectively the second locking piece, and arranged at the bottom of the groove; anda tab of the first reinforcing flange is fixed to the lower face of the first locking piece and a tab of the second reinforcing flange is fixed to the lower face of the second locking piece;insulated pipes arranged to connect the tank installed in the hull of the ship to a floating storage installation or a storage installation on land; anda pump for driving a flow of cold liquid product via the insulated pipes from or to the floating storage installation or the storage installation on land to or from the tank of the ship.
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이 특허에 인용된 특허 (6)
Harbaugh Donal E. (Santa Ana CA), Corner structure for cryogenic insulation system.
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Chauvin Jean-Michel (Plaisir FRX) Claude Jean M. (Rambouillet FRX), Prefabricated structure for forming fluid-tight and thermo-insulated walls for very low temperature fluid confinement co.
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