Filter type anti-vacuum oil suction mist cover

Abstract

The invention discloses a filter type anti-vacuum oil mist absorbing cover. The technical scheme mainly includes that a reasonable annular cavity is formed between a lower packing seal cover and an upper packing seal cover, and a segmented filter is mounted in the reasonable annular cavity via a plurality of L-shaped support frames, an upper-layer segmented compression ring, a lower-layer segmented compression ring, fixing bolts and support frame bolts; a U-shaped oil return pipe is mounted in two symmetrical oil return screw holes on the inner side of the segmented filter, and oil mist absorbing pipes are arranged on oil mist absorbing holes on two sides of the lower packing seal cover; and a segmented flow guide cover is fixed onto the upper packing seal cover, a segmented flexible sealing body is arranged at the upper end of the segmented flow guide cover, a plurality of layers of segmented retaining collars are mounted on the inner side of the segmented flow guide cover, and the segmented flow guide cover is concentric with a spindle. According to the technical scheme, the filter type anti-vacuum oil mist absorbing cover can be widely applied to the field of hydroelectric power generation.

Description

Technical field: [0001] The invention is mainly used for collecting the oil mist overflowing from the dynamic and static sealing part of the turbine oil tank sleeved by the guide bearing part of the hydraulic turbine generator set. Background technique: [0002] At present, the turbine oil used for lubricating the guide bearing part of the hydro-generator set is expanded by the rotating parts in the oil tank to form a large amount of oil mist. The oil mist overflows from the dynamic and static gap between the packing seal cover and the main shaft. The mist has seriously affected the insulation of the unit and brought hidden dangers to the safe operation of the unit; especially the phenomenon of the expanded oil mist overflowing from the turbine oil tank under the rotor is even more serious, because between the rotor and the oil tank packing sealing cover During this period, the huge cooling air formed by the fan creates an annular vacuum area, which sucks the oil mist in th...

AI Technical Summary

Problems solved by technology

The rotating parts of the guide bearing continuously expand the turbine oil inside the fixed oil tank, so that the turbine oil forms an oil mist expansion area, and the oil mist in the expansion area overflows to the oil mist overflow area through the dynamic gap formed between the lower packing sealing cover and the main shaft , the oil mist overflowing to the oil mist overflow area is sucked out under the action of the annular vacuum area to pollute the key parts such as the stator and rotor of the unit; The packing seal cover installation structure reasonably increases the annular cavity between the lower packing seal cover and the upper packing seal cover

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