Heat preservation pipeline

The utility model discloses a heat preservation pipeline which comprises a plurality of inner sleeves in butt joint and a cylindrical heat preservation layer arranged on the outer sides of the inner sleeves in a sleeved mode, the two ends of each inner sleeve extend out of the heat preservation laye...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XING YUANBIN, LI XINGNING, WENG XIAOWEN, CHEN JINGRUI, CHEN CHONGJING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING 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 PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a heat preservation pipeline which comprises a plurality of inner sleeves in butt joint and a cylindrical heat preservation layer arranged on the outer sides of the inner sleeves in a sleeved mode, the two ends of each inner sleeve extend out of the heat preservation layer, a cylindrical heat preservation sleeve piece is arranged at the butt joint position of every two adjacent inner sleeves, and spiral ports are formed in the two ends of each heat preservation sleeve piece and the two ends of the heat preservation layer. A first step is arranged at a spiral port of the heat preservation sleeve piece, and a second step matched with the first step in a clamped mode is arranged at a spiral port of the heat preservation layer. The thermal insulation sleeve is arranged at the butt joint of the two inner sleeves, the spiral ports in the two ends of the thermal insulation sleeve are matched with the spiral ports in the two ends of the thermal insulation layer, and the first step and the