An active labyrinth seal structure
A labyrinth sealing and active technology, which is applied to the sealing of the engine, engine components, machines/engines, etc., can solve problems such as gas leakage, achieve the effect of enhancing the sealing effect and suppressing gas leakage
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Embodiment 1
[0026] Such as figure 1 As shown, the present invention is an active labyrinth seal structure, including a rotor 1, a blade sealing ring 2, a semicircular sealing sheath 4, and a lock nut 3 at the shaft end. The blade seal ring 2 is fastened to the rotor 1 through a spline connection, and the number of blade seal rings is superimposed according to the need. The shaft end of the rotor 1 is fastened with a lock nut 3, and then two semicircular seal sheaths 4 are buckled on the blade seal. On the ring, the rectangular teeth on the sealing sheath 4 are used for crossing the blades. When the rotor 1 rotates, it drives the blade sealing ring to rotate, and the blades on the blade sealing ring 2 can form active directional airflow in the sealing channel.
[0027] The left side of the seal is the high-pressure side, and the right side is the low-pressure side. Normally, the gas will flow from the high-pressure side to the low-pressure side, resulting in pressure loss on the high-press...
Embodiment 2
[0031] Such as Figure 4 , 5 As shown, the gas enters from the air inlet 41 on the sealing sheath 4, because the blade sealing ring 2 and the reverse blade sealing ring 5 have a separation effect on the gas entering the sealing gap, and the sealing effect is achieved. When the rotor rotates On the contrary, the positions of the vane sealing ring 2 and the reverse vane sealing ring 5 can be exchanged.
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