Unitary vapor retarder for chilled pipe insulation

Details Unitary vapor retarder for chilled pipe insulation Unitary vapor retarder for chilled pipe insulation

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 59/02 (2006.01) F16L 59/10 (2006.01) F16L 59/14 (2006.01)

Patent

CA 2398079

An insulation system exhibiting superior ability to maintain insulation in a dry and effective condition and to remove moisture that condenses near a cold pipe is disclosed. The insulation system features a wicking material that surrounds the pipe and passes through a slit in the insulation. A vapor retarder surrounds the outer perimeter of the insulation. At the seam, a flap, containing openings that permit evaporation of moisture, extends over the slit and attaches to the vapor retarder. The vapor retarder provides enhanced performance by preventing the seepage of moisture back into the bulk of the insulation.

Cette invention concerne un système d'isolation qui présente des propriétés isolantes supérieures dans un environnement sec et propice et qui est capable d'éliminer l'humidité qui se condense à proximité d'un tuyau froid. Ce système isolant comporte un matériau mèche (8) enroulé autour du tuyau (2) et pénétrant dans l'isolant (4) par une fente (16). Un retardateur de vapeur entoure le matériau isolant à sa périphérie. Au niveau du joint, un rabat (30) assorti d'ouvertures (14) laisse l'humidité s'évaporer, recouvre la fente et vient s'ancrer sur le retardateur de vapeur. Ce retardateur de vapeur offre un surcroît d'efficacité dans la mesure où il empêche la condensation de s'infiltrer par suintement dans le matériau isolant.

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