Pressing-plate shaft seal structure for draught fan casing

The utility model provides a pressing-plate shaft seal structure for a draught fan casing. The pressing-plate shaft seal structure for the draught fan casing comprises a connecting flange, a seal cover and an aluminum pressing-plate sleeved outside the periphery of a draught fan transmission shaft,...

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Bibliographische Detailangaben
Hauptverfasser:	YIN FENGYU, SONG BIN
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides a pressing-plate shaft seal structure for a draught fan casing. The pressing-plate shaft seal structure for the draught fan casing comprises a connecting flange, a seal cover and an aluminum pressing-plate sleeved outside the periphery of a draught fan transmission shaft, the connecting flange is connected with a backside plate of the draught fan casing by a first bolt, the connecting flange is connected with the seal cover through a steel flat pressing-plate, a rubber seal ring is arranged between the connecting flange and the seal cover, the seal cover is connected with the aluminum pressing-plate through a second bolt, and a graphite ring is arranged between the seal cover and the aluminum pressing-plate. The pressing-plate shaft seal structure for the draught fan casing has the advantages of high sealing performance, good stability, high corrosion resistance, effective service life prolongation of the draught fan and low cost.