Damp lashing strip structure of industrial steam turbine high load short vane
An industrial steam turbine, high-load technology, applied in the directions of blade support elements, mechanical equipment, engine elements, etc., can solve the problems of difficult damping shroud design and high damping requirements, and achieve the strength and vibration performance, tangential stiffness is large, increase Effect of Circumferential Length
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[0014] Such as figure 1 As shown, the damping shroud 4 structure of the high-load short blade of the industrial steam turbine described in this embodiment, the blade is composed of the blade body 1, the blade root 2 and the intermediate connecting body 3, and the whole circle of blades is uniformly installed on the blade root 2 in the circumferential direction. On the rotor, a shroud 4 is provided on the top of the airfoil 1, and the shrouds 4 on two adjacent blades in the circumferential direction are arranged close to each other, and an axial wedge-shaped groove 6 is milled on the mating surface of the two adjacent shrouds 4. 6 is provided with wedge-shaped damping block 5.
[0015] Circumferential sealing grooves 7 are respectively provided at both ends of the bottom of the wedge-shaped groove 6 , and sealing shoulders 8 are provided on the corresponding positions of the sealing grooves 7 on the wedge-shaped damping block 5 .
[0016] As an optimization, the wedge angle of...
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