VACUUM-INSULATED PIPELINE
First Claim
1. A vacuum-insulated assembly for the transfer of a fluid at a temperature substantially above or below ambient temperature, including a plurality of prefabricated jacketed members each made up of a tubular pipeline and a coaxial tubular jacket, the jacket being attached in fluid-tight manner to the tubular pipeline to provide an insulating space, with tubular junction members having the same cross section as the tubular pipeline and joined to the ends of said pipeline, each prefabricated jacketed member having joined to it two tubular sleeves, one at each end of the jacketed member, the tubular sleeves being of larger internal diameter than the external diameter of the jacketed members and being arranged to provide an insulating space around the portions of the pipeline not enclosed within a tubular jacket, and the insulating spaces being evacuated.
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Accused Products
Abstract
A vacuum insulated pipeline for transfer of fluid at extreme temperatures, for example liquid oxygen, formed from jacketed portions of pipeline, junction pieces and protective sleeves for the junction pieces. The jackets and the spaces between the junction pieces and protective sleeves are evacuated.
15 Citations
8 Claims
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1. A vacuum-insulated assembly for the transfer of a fluid at a temperature substantially above or below ambient temperature, including a plurality of prefabricated jacketed members each made up of a tubular pipeline and a coaxial tubular jacket, the jacket being attached in fluid-tight manner to the tubular pipeline to provide an insulating space, with tubular junction members having the same cross section as the tubular pipeline and joined to the ends of said pipeline, each prefabricated jacketed member having joined to it two tubular sleeves, one at each end of the jacketed member, the tubular sleeves being of larger internal diameter than the external diameter of the jacketed members and being arranged to provide an insulating space around the portions of the pipeline not enclosed within a tubular jacket, and the insulating spaces being evacuated.
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2. An assembly as claimed in claim 1, wherein each prefabricated jacketed member has cup-shaped annular end pieces.
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3. An assembly as claimed in claim 2, wherein the tubular pipeline projects beyond the end pieces of the jacket.
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4. An assembly as claimed in claim 1, wherein all the joints are welded joints.
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5. An assembly as claimed in claim 1, wherein the sleeves and the jackets are provided with fitted pump-down connections.
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6. An assembly as claimed in claim 1, wherein all parts of the assembly except junction members are substantially straight.
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7. An assembly as claimed in claim 1, wherein the sleeves have an internal diameter only slightly larger than the external diameter of the jacketed members.
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8. An assembly as claimed in claim 1, wherein the tubular junction members are provided with layers of superinsulating material.
Specification
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- Resources
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Current AssigneeDonald Harry Tantam
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Original AssigneeDonald Harry Tantam
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InventorsTantam, Donald Harry
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Primary Examiner(s)Ross, Herbert F.
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Application NumberUS05/104,443Time in Patent Office1,014 DaysField of Search137/561A 285/47,138,150,155,156 138/114,148US Class Current285/47CPC Class CodesF16L 59/065 using vacuum F16L59/075 tak...F16L 59/16 Arrangements specially adap...
