Subsea pipe flange pair connection installation device

Abstract

The invention discloses a paired connection and installation device for sea pipe flanges, which includes a frame main body, a support rod assembly, a bolt fixture for opening and closing clamping on sea pipes and inserting bolts into sea pipe flanges, and a It can be opened and closed to be clamped on the butt sea pipe flange to center the sea pipe flange. It can be opened and closed to be clamped on the sea pipe and screw the nut into the bolt to align the butt sea pipe. A flange-fastened nut clamp; the support rod assembly is arranged in the frame main body along the axial extension of the pipe and can move back and forth vertically relative to the frame main body. The bolt clamp, flange clamp and Nut clamps are sequentially arranged on the support rod assembly, and the bolt clamp and nut clamp can move back and forth along the support rod assembly in the axial direction of the sea pipe. The sea pipe flange pair connection and installation device of the present invention is suitable for underwater robot control, for underwater sea pipe flange pairing and bolt installation, to achieve the purpose of deep water sea pipe maintenance, and is safe and efficient.

Description

technical field [0001] The invention relates to the technical field of sea pipe maintenance, in particular to a sea pipe flange pair connection installation device. Background technique [0002] There are two main ways to connect the flange system of deepwater sea pipe maintenance: bolt connection and claw connection. The claw connection method has high requirements for the coaxiality of the prefabrication of the sea pipe, and it is a difficult point for the quality control of the prefabrication of the sea pipe. The bolt connection method is a widely used and very mature flange system connection method for marine pipeline maintenance in shallow water areas. Usually, divers operate to complete the sea pipe flange assembly, bolt installation and stretching, but for water depths exceeding 300 meters The maintenance of deep-water marine pipelines needs to be carried out by underwater robots. Therefore, how to realize flange assembly, bolt installation and stretching work withou...

AI Technical Summary

Problems solved by technology

The bolt connection method is a widely used and very mature flange system connection method for marine pipeline maintenance in shallow water areas. Usually, divers operate to complete the sea pipe flange assembly, bolt installation and stretching, but for water depths exceeding 300 meters The maintenance of deep-water marine pipelines needs to be carried out by underwater robots. Therefore, how to realize flange assembly, bolt installation and stretching work without divers and only rely on underwater robots has become a restrictive bolt connection method in deep-water marine pipelines. A challenge for maintenance applications

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