IIR document

Cryogenic liquid transfer possibilities: focus on static vacuum insulated pipes.

Author(s) : TAKÁCS D., CHRZ V.


Liquefied gases can be transported in several piping systems. The most common systems are: naked pipe, mechanically insulated pipe, dynamic vacuum insulated and static vacuum insulated pipe. Each system is justifiable under certain conditions. Naked or mechanically insulated pipes can be used for periodical service with large flow rates, as filling pipelines of storage installations. Maximum insulation performance is required for pipelines under continuous operation with low flow rates, just to mention two extreme examples. Chart has developed efficient static vacuum insulated pipe with patented features as bayonet-type connections for tighter seals using Invar alloy in the design. Several predesigned solutions of joints of the pre-fabricated sections and several systems of thermal expansion compensation are presented with their particular advantages and suitability for different projects as well as impact on the project economy. Several special accessories were developed as vapour separators. Experience from installation, testing of the final systems and follow-up service are also presented.

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Pages: 2008-1


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  • Original title: Cryogenic liquid transfer possibilities: focus on static vacuum insulated pipes.
  • Record ID : 2008-1498
  • Languages: English
  • Subject: Technology
  • Source: Cryogenics 2008. Proceedings of the 10th IIR International Conference
  • Publication date: 2008/04/21


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