External fixing frame arranged on 350 DEG C direct burial heat supply pipeline and used for preventing heat bridge from transferring heat

• Main Authors: HE XINGWANG, REN CAIWEI, YANG GUOHONG, YE WENBO, LIU CHONG, CAO YUAN, HU LANQING, MA JING, LIANG SHIJUN
• Format: Patent
• Language: Chinese; English
• Published: 21.08.2013
• Subjects: BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THEIR PREPARATION OR CHEMICAL WORKING-UP; THERMAL INSULATION IN GENERAL; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS

The utility model discloses an external fixing frame arranged on a 350 DEG C direct burial heat supply pipeline and used for preventing a heat bridge from transferring heat. The problem that a heat bridge effect easily happens in an existing external fixing frame of a direct burial type steam pipeline is solved. An external fixing ring (5) is placed on the sidewall of an external guard steel pipe (4); an outer ring of the external fixing ring (5) is fixedly placed in a reinforced concrete anchor block (11); an aluminum silicate lining (10) is arranged between the inner ring of the external fixing ring (5) and a heat transferring steel pipe (1); an internal fixing ring (6) is arranged on the outer sidewall of the heat transferring steel pipe (1); a ceramic layer of 2 mm in thickness is respectively arranged on the outer surface of the internal fixing ring (6) and an outer surface of an internal fixing ring reinforcing rib (7); and a high-strength heat insulation epoxy resin annulus gasket (9) and an aluminum f