LOW-TEMPERATURE PIPELINE Russian patent published in 2001 - IPC

FIELD: power engineering, chemical, food and other branches of industry. SUBSTANCE: invention relates to building of pipelines, namely, to laying of pipelines inside the building in channels of low-temperature pipeline. Construction of low-temperature pipeline includes box with cover in which pipe surrounded with thermal insulation and feeding of low-temperature substance is positioned on rigid insulated support. It also contains hydraulic insulation and heating cable placed on external side walls of box. Feeding pipe has double-layer insulation. Layer adjacent to pipe is fine-pored, and the second layer is of coarse-pored material in which ventilation tubes are positioned. Hydraulic insulation is provided between channel cover over surface of coarse-pored thermal insulation layer. Hydraulic insulation is spaced from cover. The invention ensures reduction of low-temperature effect on internal constructions of building. EFFECT: improved construction. 1 dwg