摘要:
A heated vent cap assembly is provided which can be coupled to a pipe originating from a plumbing system within a building. A heating element is wound around an inner cylinder which is wrapped in a conductive foil and enveloped by a larger diameter outer cylinder which is lined with a reflective foil defining a void there between. The cylinders are secured at an upper end by an end cap and at a lower end by a lower end cap and a tether is tautly secured within the inner cylinder by a bridge in an opening of the end cap and a lower disk engaged with the lower end of the inner cylinder to support ice blocks formed therein. The heating cable generates heat, which is reflected by the reflective foil and absorbed by the conductive foil to prevent ice from forming on the inner surface of the inner cylinder.
摘要:
A housing of a device for the treatment of gases hotter than the ambient temperature, in particular flue gases, comprises an exterior frame made of supports. At the interior side of said frame an insulating wall is arranged which comprises an interior side metal sheet and an exterior side metal sheet, wherein insulating material having an extremely low heat conductivity is arranged between said metal sheets.
摘要:
Flexible piping includes a first, spiral-wound band forming an inner winding and a second, spiral-wound band forming an outer winding in covering relationship over the inner winding. Inner and outer spiral-wound bands of insulating material are wound between the inner and outer windings and over the outer winding respectively. An insulating sleeve receives the spiral-wound inner and outer windings and the inner and outer insulating material bands. A method and a machine for forming the flexible piping are also disclosed.