FIELD: turbines or turbomachines.
SUBSTANCE: invention relates to a honeycomb sealing of a turbomachine, which comprises a holder installed in the stator casing, segments with honeycomb blocks and sealing flanges of the rotor. Segments are fixed in the cage and equipped with sealing flanges. Honeycomb blocks are fixed in segments between sealing flanges by soldering. Sealing ledges of rotor form throttling gaps with inner cylindrical surface of honeycomb blocks. Segment sealing flanges form throttling gaps with outer cylindrical rotor surface. Segment sealing ridges and honeycomb blocks are separated by annular channels for deposition of foreign particles.
EFFECT: technical result of using invention consists in increase of turbomachine operating period with permissible values of efficiency and reduction of costs for operation and repair of honeycomb seals.
9 cl, 2 dwg
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Authors
Dates
2020-04-23—Published
2019-12-14—Filed