Ceramic lined fire tube protective sleeve for boiler

The utility model discloses a ceramic lined fire tube protective sleeve for a boiler, which adopts a round tube with a step, wherein the round tube adopts three layers, namely, an outer steel tube base body layer, an inner alumina ceramic layer produced through centrifugal self-propagating reaction,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG CHENGTAI, LU YOU, LI HUAIBIN, AN JIAN, LIN XIAODE
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model discloses a ceramic lined fire tube protective sleeve for a boiler, which adopts a round tube with a step, wherein the round tube adopts three layers, namely, an outer steel tube base body layer, an inner alumina ceramic layer produced through centrifugal self-propagating reaction, and an intermediate iron layer; and the step is convexly arranged at one end of the steel tube base body. The ceramic lined fire tube protective sleeve for the boiler has the advantages of high abrasion resistance and corrosion resistance, is mounted at the inlet end of a fire tube, so as to effectively prevent the inlet end of the fire tube from being abraded and corroded by soot and dust in smoke gas, reduces the frequent replacement of the inlet end of the fire tube due to abrasion and corrosion during the operation, prolongs the overhaul period, improves the heat efficiency of the boiler, and prolongs the service life of the boiler.