Damping structure of labyrinth sealing ring with adjustable axial position of damping ring

• Main Authors: CHEN JIEYI, LIU HAIBO, ZHAO XINHAO, LI YU, LIU SIYING, ZHANG ZHAOHE, SUN DAN
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2024
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINEERING ELEMENTS AND UNITS; GAS-TURBINE PLANTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a labyrinth seal ring vibration attenuation structure with the axial position of a damping ring adjustable, which comprises a labyrinth seal ring, the damping ring, a first spring, a second spring and an air conduit, the damping ring is mounted on the inner wall of the labyrinth seal ring in an interference manner, the first spring and the second spring are correspondingly mounted on the left side and the right side of the damping ring, and the air conduit is mounted on the first spring and the second spring. The first spring and/or the second spring are/is memory alloy springs, in the initial installation state, the first spring and the second spring are connected with the two sides of the damping ring correspondingly and enable the axial position of the damping ring to be stable, and the air outlet end of the air guide pipe extends into the labyrinth sealing ring and is used for changing the temperature in the labyrinth sealing ring. According to the labyrinth sealing ring vibrat