A large volume natural gas storage tank comprises a plurality of rigid tubular walls each having opposing ends and an intermediate segment with a closed tubular cross-section, the plurality of rigid tubular walls arranged in a closely spaced relationship and interconnected at their ends to form a si
A large volume natural gas storage tank comprises a plurality of rigid tubular walls each having opposing ends and an intermediate segment with a closed tubular cross-section, the plurality of rigid tubular walls arranged in a closely spaced relationship and interconnected at their ends to form a six-sided storage tank, with each of the six sides of the storage tank defined by four successive of the plurality of rigid tubular walls connected end-to-end, such that the interiors of the plurality of rigid tubular walls define an interior fluid storage chamber; and an exterior support structure, the exterior support structure including one or more braces connected to the exteriors of at least some of the plurality of rigid tubular walls and adapted to reinforce the at least some of the plurality of rigid tubular walls against dynamic loading from fluid in the interior fluid storage chamber.
대표청구항▼
1. A large volume natural gas storage tank, comprising: a plurality of rigid tubular walls each having opposing ends and an intermediate segment with a closed tubular cross-section, each of the plurality of rigid tubular walls interconnected at each end with respective ends of two others to form a s
1. A large volume natural gas storage tank, comprising: a plurality of rigid tubular walls each having opposing ends and an intermediate segment with a closed tubular cross-section, each of the plurality of rigid tubular walls interconnected at each end with respective ends of two others to form a six-sided storage tank, with each of the six sides of the storage tank defined by four successive of the plurality of rigid tubular walls connected end-to-end, such that interconnected interiors of the plurality of rigid tubular walls define an interior fluid storage chamber; andan exterior support structure, the exterior support structure including a plurality of lattice structures formed of rigidly interconnected vertical and horizontal braces;wherein the horizontal braces decrease in load bearing capacity from a bottom of the storage tank to a top of the storage tank;wherein each lattice structure extends between outer exteriors of at least three of the four successive rigid tubular walls on one of the sides of the storage tank,wherein the plurality of lattice structures are adapted to reinforce the storage tank against dynamic loading from fluid in the interior fluid storage chamber. 2. The storage tank of claim 1, wherein at least some of the vertical and horizontal braces in each lattice structure are shaped to conform to the contour of at least one of the outer exteriors of the four successive rigid tubular walls. 3. The storage tank of claim 1, wherein at least one lattice structure forms a base adapted to support the remainder of the storage tank with respect to a support surface. 4. The storage tank of claim 1, wherein the plurality of rigid tubular walls includes: four successive base rigid tubular walls connected end-to-end to define a base side of the storage tank;four successive upper rigid tubular walls connected end-to-end to define an upper side of the storage tank; andfour upright rigid tubular walls, each end of a given of the four upright rigid tubular walls connected at its ends between the connected ends of two successive base rigid tubular walls and the connected ends of two successive upper rigid tubular walls, with the remaining four sides of the storage tank being upright sides each defined by successive of a base rigid tubular wall, an upper rigid tubular wall and two upright rigid tubular walls connected end-to-end. 5. The storage tank of claim 1, wherein the exterior support structure further includes at least one brace circumscribing three of the six sides of the storage tank and connecting three respective lattice structures. 6. The storage tank of claim 4, wherein the exterior support structure further includes at least one brace extending from a lattice structure on one of the upright sides to a lattice structure on the base side, wherein the at least one brace forms a chamfered surface between the upright side and the base side. 7. The storage tank of claim 6, wherein the least one brace extends lengthwise from the outer exterior of a first of the two opposing base rigid tubular walls defining an upright side of the storage tank, across the base side of the storage tank, and to the outer exterior of the second of the two opposing base rigid tubular walls defining another upright side of the storage tank. 8. The storage tank of claim 7, wherein the least one brace extends widthwise across the intermediate segments of the two opposing base rigid tubular walls. 9. The storage tank of claim 4, wherein the exterior support structure further includes at least one brace circumscribing all four of the upright sides of the storage tank. 10. The storage tank of claim 1, further comprising: a gusset plate connected between inner exteriors of four commonly aligned rigid tubular walls. 11. The storage tank of claim 1, further comprising: a bulkhead positioned in the interior fluid storage chamber across the intermediate segment of one of the plurality of rigid tubular walls, the bulkhead defining at least one aperture to permit restricted fluid communication within the interior fluid storage chamber through the bulkhead. 12. The storage tank of claim 11, wherein the bulkhead includes a reinforcing outer periphery connected with the interior of the one of the plurality of rigid tubular walls and an inner membrane defining the at least one aperture. 13. A large volume natural gas storage tank, comprising: a plurality of rigid tubular walls each having opposing ends and an intermediate segment with a closed tubular cross-section, each of the plurality of rigid tubular walls interconnected at each end with respective ends of two others of the plurality of rigid tubular walls to define a corner of the storage tank, such that interconnected interiors of the plurality of rigid tubular walls define an interior fluid storage chamber; andan exterior support structure, the exterior support structure comprising: a plurality of lattice structures adapted to reinforce the storage tank against dynamic loading from fluid in the interior fluid storage chamber; wherein each lattice structure is formed of rigidly interconnected vertical and horizontal braces,wherein the horizontal braces decrease in load capacity from a bottom of the storage tank to a top of the storage tank, andwherein each lattice structure extends between outer exteriors of two of the rigid tubular walls interconnected at one of the corners of the storage tank; andone or more braces extending between two of the lattice structures at one of the corners of the storage tank to form a chamfered surface, wherein the chamfered surface is adapted to support the storage tank in a cargo hold of a carrier. 14. The storage tank of claim 13, wherein the one or more braces of the exterior support structure are shaped to conform to the contour of at least one of the rigid tubular walls interconnected at one of the corners of the storage tank. 15. The storage tank of claim 13, further comprising: a bulkhead positioned in the interior fluid storage chamber across the intermediate segment of one of the plurality of rigid tubular walls, the bulkhead defining at least one aperture to permit restricted fluid communication within the interior fluid storage chamber through the bulkhead. 16. The storage tank of claim 15, wherein the bulkhead includes a reinforcing outer periphery connected with the interior of the one of the plurality of rigid tubular walls and an inner membrane defining the at least one aperture. 17. A large volume natural gas storage tank, comprising: a plurality of rigid tubular walls each having opposing ends and an intermediate segment with a closed tubular cross-section, each of the plurality of rigid tubular walls interconnected at each end with respective ends of two others of the plurality of rigid tubular walls to define a corner of the storage tank, such that interconnected interiors of the plurality of rigid tubular walls define an interior fluid storage chamber;an exterior support structure, the exterior support structure comprising a lattice structure formed of rigidly interconnected vertical and horizontal braces, wherein the lattice structure extends between outer exteriors of two of the rigid tubular walls at one of the corners of the storage tank,wherein the lattice structure is adapted to reinforce the storage tank against dynamic loading from fluid in the interior fluid storage chamber, andwherein the horizontal braces decrease in load bearing capacity from a bottom of the storage tank to a top of the storage tank; anda bulkhead positioned in the interior fluid storage chamber across the intermediate segment of one of the plurality of rigid tubular walls, the bulkhead defining at least one aperture to permit restricted fluid communication within the interior fluid storage chamber through the bulkhead. 18. The storage tank of claim 17, wherein the bulkhead includes a reinforcing outer periphery connected with the interior of the one of the plurality of rigid tubular walls and an inner membrane defining the at least one aperture. 19. The storage tank of claim 17, wherein at least some of the vertical and horizontal braces of the lattice structure are shaped to conform to the contour of at least one of the two rigid tubular walls. 20. The storage tank of claim 17, wherein at least some of the vertical and horizontal braces are shaped to form a chamfered surface extending between the outer exteriors of the two rigid tubular walls.
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이 특허에 인용된 특허 (13)
Falk, Ingemar, Device at a fuel tank for heavy vehicles and a process of manufacture of the said tank.
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