Internal heat preservation air pipe

The utility model relates to the field of heat preservation air pipes, in particular to an internal heat preservation air pipe. An air inlet is formed in the upper end of the pipe body, an air outlet is formed in the lower end of the pipe body, a lining is arranged in the pipe body, connecting plate...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI JIA, QIU MENGSI
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 relates to the field of heat preservation air pipes, in particular to an internal heat preservation air pipe. An air inlet is formed in the upper end of the pipe body, an air outlet is formed in the lower end of the pipe body, a lining is arranged in the pipe body, connecting plates are welded to the two ends of the pipe body and the two ends of the lining, a vacuum layer is arranged between the pipe body and the connecting plates, foam is filled in the vacuum layer, and flange plates are welded to the connecting plates at the upper end and the lower end of the pipe body. A plurality of round holes are formed in the flange plate, the pipe body and the lining form an integrated structure, the sealing performance is improved, meanwhile, a gap between the pipe body and the connecting plate is in a vacuum state, the vacuum layer can isolate oxygen and prevent oxygen in the air pipe from entering the air pipe, the vacuum layer is filled with foam, and therefore the heat preservation efficiency of