Butt flange under-pressure sealing tool

• Main Authors: YANG XUEGANG, ZHUANG JIANJUN, ZHAO JUNSONG, SANG YU, ZHANG CHAO, WANG CHUNFENG, MA XINSHUAI
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAND TOOLS; HEATING; LIGHTING; MANIPULATORS; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PISTONS; PORTABLE POWER-DRIVEN TOOLS; SEALINGS; THERMAL INSULATION IN GENERAL; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING; WEAPONS

The utility model discloses a butt flange under-pressure sealing tool. The device comprises two semi-annular clamping rings which can be hooped on the peripheries of two flanges after being folded, each semi-annular clamping ring is provided with an annular boss formed along the center of the inner surface of the corresponding semi-annular clamping ring, the two semi-annular clamping rings are hooped on the peripheries of the two flanges after being folded, and the annular bosses of the two semi-annular clamping rings can be clamped into a gap between the two flanges. Glue injection holes penetrating through the annular boss in the radial direction are formed in the two semi-annular clamping rings, and glue injection connectors are connected to the glue injection holes. The sealing structure has the advantages that on one hand, two sealing surfaces are formed through matching of the annular boss and the tangent plane of the flange and matching of the end face of the flange, so that the secondary leakage proba