The present invention relates to a composite coating for an inner tube delimiting a passageway for a fluid for obtaining a pipe for conveying fluids in HVACR systems.

The present invention relates to a composite coating for an inner tube delimiting a passageway for a fluid for obtaining a pipe for conveying fluids in HVACR systems.

Exhaust insulation systems and methods are described that include multiple layers. In one example, a system includes a base insulation layer covering a portion of an exhaust pipe and a hard outer cover formed from a spirally wrapped knit tape and having a length coextensive with the length of the underlying base insulation layer. The wrapped knit tape outer cover can include successive turns of tape overlapping by 25% to 75%. The knit tape can be impregnated with a thermosetting phenolic resin prior to being wrapped about the pipe.

Exhaust insulation systems and methods are described that include multiple layers. In one example, a system includes a base insulation layer covering a portion of an exhaust pipe and a hard outer cover formed from a spirally wrapped knit tape and having a length coextensive with the length of the underlying base insulation layer. The wrapped knit tape outer cover can include successive turns of tape overlapping by 25% to 75%. The knit tape can be impregnated with a thermosetting phenolic resin prior to being wrapped about the pipe.

The invention relates to pipelines and equipment useful in nuclear power plants, heat power engineering, manufacturing engineering, petrochemistry, water supply, chemical and aerospace industries, and other fields. The invention relates to a pipe heat insulation casing consisted of metal elements and assembly method ensuring reliable electrical insulation of all elements. The connection of the metal elements is with lapping, the elements are with openings in the lapping area where the electrically-insulating spacers are set made of resilient, elastic-plastic, plastic, fully viscous or partially solidified material ensuring electrical insulation between the adjacent elements. The electrically-insulating spacers are applied to the lapping areas of the metal elements to fill the openings of the lapping areas thus arranging reliable pin connections between the spacer and adjacent casing elements. Multiple pin connections ensure fixation of the adjacent metal elements without any failure to electrical insulation of each other.

The invention relates to pipelines and equipment useful in nuclear power plants, heat power engineering, manufacturing engineering, petrochemistry, water supply, chemical and aerospace industries, and other fields. The invention relates to a pipe heat insulation casing consisted of metal elements and assembly method ensuring reliable electrical insulation of all elements. The connection of the metal elements is with lapping, the elements are with openings in the lapping area where the electrically-insulating spacers are set made of resilient, elastic-plastic, plastic, fully viscous or partially solidified material ensuring electrical insulation between the adjacent elements. The electrically-insulating spacers are applied to the lapping areas of the metal elements to fill the openings of the lapping areas thus arranging reliable pin connections between the spacer and adjacent casing elements. Multiple pin connections ensure fixation of the adjacent metal elements without any failure to electrical insulation of each other.

A ventilation system for insulated pipe or pipeline to prevent corrosion thereof is discussed. The ventilation system can include an outer skin wrapped around the insulated pipe or pipeline, the outer skin separated from the insulation pipe by stand-off supports to form an annular chamber within the system. The system has a vent screen along a bottom side of the outer skin and a gable running along the top side of the outer skin, the gable having a number of openings therethrough to allow air to flow in through the vent screen, through the annular chamber and out through the gable openings, drawing moisture from the insulation thereby preventing corrosion of the pipe or pipeline.

Insulation structures, insulated piping devices including the same, and methods of fabricating the same are disclosed. The insulation structure includes a first insulation layer on an outer surface of a pipe, a second insulation layer on an outer surface of the first insulation layer that includes a material different from a material of the first insulation layer, and a third insulation layer on an outer surface of the second insulation layer that includes a material different from the material of the second insulation layer. A thickness of the second insulation layer is greater than a thickness of the first insulation layer and a thickness of the third insulation layer. The second insulation layer includes a porous foam.

Insulation structures, insulated piping devices including the same, and methods of fabricating the same are disclosed. The insulation structure includes a first insulation layer on an outer surface of a pipe, a second insulation layer on an outer surface of the first insulation layer that includes a material different from a material of the first insulation layer, and a third insulation layer on an outer surface of the second insulation layer that includes a material different from the material of the second insulation layer. A thickness of the second insulation layer is greater than a thickness of the first insulation layer and a thickness of the third insulation layer. The second insulation layer includes a porous foam.

Some embodiments of the present technology may encompass pipe insulation systems. The insulation systems may include an insulation member having an inner surface and an outer surface. The insulation systems may include a protective cladding having an interior surface and an exterior surface. The interior surface of the protective cladding may be disposed about the outer surface of the insulation member. The interior surface of the protective cladding may include an embossed texture formed from a plurality of protruding features and a plurality of recessed features. The plurality of protruding features may extend at least 1 mm beyond the plurality of recessed features.