Integral shroud structure of last-stage moving blade

The invention discloses an integral shroud structure of a last-stage moving blade. Multiple moving blades are installed on corresponding impellers in a radial mode, the integral shrouds of adjacent moving blades are matched and combined into circles, and the shroud of each moving blade is provided w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU XIANDING, YIN MINGYAN, FAN XIAOPING, GOU XIAOPING, JIANG NAN, FAN ZHIFEI, ZHONG GANGYUN, GUO DIANBIN, WANG SHUNDE, CHEN TIENING, PU SHOUWU
Format:	Patent
Sprache:	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 invention discloses an integral shroud structure of a last-stage moving blade. Multiple moving blades are installed on corresponding impellers in a radial mode, the integral shrouds of adjacent moving blades are matched and combined into circles, and the shroud of each moving blade is provided with a back arc working surface SB and an inner arc working surface PB; in the static state, the back arc working surfaces SB and inner arc working surfaces PB of adjacent shrouds are not arranged in parallel, and gaps between the back arc working surfaces SB and inner arc working surfaces PB of adjacent shrouds are variable gaps; in the dynamic state, when rotating speed is N1 rpm, the back arc working surfaces SB and inner arc working surfaces PB of adjacent shrouds make contact, and 0