Labyrinth dynamic seal movable joint

• Main Authors: FANG XINXIN, KANG ZHONGTAO, TAO ZHI, JIANG JUN, WAN BING, HUANG KEWU, YIN QIANG, WEN TAO, BAI HANCHEN, YUAN LEI, HU YUE, WANG ZHENFENG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2024
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The invention belongs to the technical field of mechanical sealing structures, and discloses a labyrinth dynamic sealing movable joint. The labyrinth dynamic seal movable joint is used in a square cavity in the square shell; according to the medium flowing direction, the square-column-shaped front molded surface and the square-column-shaped rear molded surface are sequentially connected from front to back. A rotating shaft is arranged at the rear end of the front molded surface, a circular tube type labyrinth head matched with the rotating shaft is arranged at the front end of the rear molded surface, and the labyrinth head is embedded into the rear end of the front molded surface; the rear molded surface rotates around the rotating shaft, the outer arc surface of the labyrinth head is located between the front molded surface and the rear molded surface, and the front molded surface and the rear molded surface are in smooth transition through the labyrinth head; cavity dynamic sealing grooves are formed in th