Water turbine overhaul sealing method and device based on air sealing

The invention discloses a water turbine overhaul sealing method and device based on air sealing, and the method comprises the following steps: when a water turbine needs to be overhauled, extruding mechanisms are installed on the two sides of a main shaft, and the extruding mechanisms are used for e...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG LIPING, WANG DELIN, WEI JINHONG, XIONG DENGLEI, XIAN XUEHONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The invention discloses a water turbine overhaul sealing method and device based on air sealing, and the method comprises the following steps: when a water turbine needs to be overhauled, extruding mechanisms are installed on the two sides of a main shaft, and the extruding mechanisms are used for extruding the main shaft to reduce the rotating speed of the main shaft; the fixing holes are formed in the main shaft, the fixing mechanisms are installed on the periphery of the main shaft, and the main shaft is fixed by inserting the fixing mechanisms into the fixing holes; the sealing mechanism is arranged on the main shaft, the air supply mechanism is started to convey compressed air into the sealing mechanism, the sealing mechanism is attached to the outer wall of the main shaft to achieve sealing of the water turbine, and the problems that when an existing water turbine is overhauled, water turbine blades still drive the main shaft to rotate, and the sealing performance between the main shaft and a sealing sl