When insulating pipes pass through cofferdams, sleeves are used; is it still necessary to insulate the part of the pipe that is within these sleeves?
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When insulating pipes pass through cofferdams, sleeves are used; is it still necessary to insulate the part of the pipe that is within these sleeves? My colleague said it’s not necessary to do it, but I think it is needed – the sleeve should be one size larger than the pipe. Whether insulation is used or not depends on the size of the sleeve that needs to be made
Insulation must also be applied to pipes that pass through cofferdams; however, a larger diameter sleeve should be used for these pipes to ensure that the insulation can still function properly. Without insulation, heat is lost very quickly from such pipes.
Thank you. Let me ask further: isn’t filler also needed between the sleeve and the pipe? Should this filler be a type of insulating material or a fire-resistant material? Mine has a fire dike that’s 1.2 meters high, with a penetration of around 600
Since it’s a fire dike, wrap it with fire-resistant material, and add a thin layer of insulating material on the outside. It retains heat even before ignition. Because both fireproofing materials and insulation materials have the same insulating effect.
Since it’s a fire dike, wrap it with fire-resistant material, and add a thin layer of insulating material on the outside. It retains heat even before ignition. Because both fireproofing materials and insulation materials have the same insulating effect.
Insulation must be applied to insulated pipes when they pass through cofferdams; it is sufficient to use a larger diameter sleeve for this purpose, ensuring that the insulation can still be maintained around the pipe.
There’s no need to do it. For normal pipelines passing through cofferdams, leakage-proof filler should be inserted between the pipeline and the casing; this is mainly to prevent the medium inside the cofferdam from leaking outside. Secondly, the amount of filler also serves a thermal insulation purpose. Thirdly, the lack of insulation in the section passing through the wall has little impact on the entire pipeline. (Leak prevention is the primary concern; on the other hand, when insulation is added, the insulation layer does not provide leak protection.)