Sealing structure of steam turbine shaft seal through-flow area

The steam turbine shaft seal through-flow area sealing structure comprises a stator sealing ring and a rotor installed in the stator sealing ring in a penetrating mode, the sealing working face of the stator sealing ring is provided with a plurality of stator side steam sealing teeth protruding outw...

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Bibliographische Detailangaben
Hauptverfasser:	LEE JEONG-JUN, DIAO JINYAN, CAO XIAOYING, ZHANG QIANG, WANG WEI, ZHANG JIANPU, HE MINGYI, FAN HUA, YUAN XIAOHU, SUN YOUBEI, LONG BIN, GONG XIUFANG, CHEN YIWEN, GAO ZHENHUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The steam turbine shaft seal through-flow area sealing structure comprises a stator sealing ring and a rotor installed in the stator sealing ring in a penetrating mode, the sealing working face of the stator sealing ring is provided with a plurality of stator side steam sealing teeth protruding outwards towards one side of the rotor, and the sealing working face of the rotor is provided with a plurality of rotor side steam sealing teeth protruding outwards towards one side of the stator. The rotor side steam sealing teeth and the stator side steam sealing teeth are arranged on the sealing working face of the stator sealing ring, the rotor side steam sealing teeth and the stator side steam sealing teeth form a labyrinth type structure which is sequentially arranged in a staggered mode in the axial direction, the sealing working face of the stator sealing ring is provided with an abrasion coating for the rotor side steam sealing teeth of a rotor in an offset state to collide and scrape, and the hardness of the