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US 3,933,182 AGranted
System for sealing and heat-insulating a duct containing a hot fluid under pressure
AssigneeCommissariat a l'Energie Atomique
InventorDidier Costes
Life of this patent
Estimating the term…
Abstract
A duct for the circulation of a hot fluid under pressure and formed in a cold structure of concrete is lined with rigid heat-insulating material such as pumice concrete. A corrugated lining membrane is applied in close contact with the heat-insulating material by means of radial members which are disposed in uniformly spaced relation and anchored in the cold structure.EEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Claims7
A system for sealing and heat-insulating a duct which contains a hot fluid under pressure and is limited by a cold structure surrounding the duct, wherein said system comprises:
- an internal duct lining of rigid heat-insulating material,
- a cylindrical sheet-metal element of corrugated transverse section having wave troughs within and completely covering said heat-insulating lining, said lining being provided with the same corrugations as said sheet-metal element,
- means for anchoring said sheet-metal element in the cold structure and disposed along radii of said duct, each of the means aforesaid being secured at one end thereof to one wave trough of said sheet-metal element and at the other end thereof to said cold structure.
Dependencies are inferred from the claim text.