Safety structure for dangerous medium flange joint

• Main Authors: WANG LEI, HUO KAIZI, ZHANG QIANG, TAN PING, ZHANG SHUNPING
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a safety structure for a dangerous medium flange joint, which comprises an upper flange plate and a lower flange plate, a flange gasket is arranged between the upper flange plate and the lower flange plate, and an upper groove and a lower groove are oppositely arranged and form a mounting space. A plurality of opposite screw holes are evenly formed in the upper groove and the lower groove at intervals in the direction of the center line of the upper groove and the center line of the lower groove respectively, protective check rings which share the same center line with the upper flange plate and the lower flange plate are arranged in the installation space, the protective check rings are in clearance fit with the upper groove and the lower groove respectively, and the protective check rings are located on the outer side of the circumference where all the screw holes are located. The projection of the flange gasket in the radial direction is located on the inner side of the projecti