Underwater pipeline dry type welding working port

• Main Authors: CAO YINGYU, ZHAO JIE, XUE LONG, LU TAO
• Format: Patent
• Language: Chinese; English
• Published: 15.09.2010
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The utility model discloses an underwater pipeline dry type welding working port which consists of an upper port body (1), a lower port body (2), a port body functional hole (3), an outer air cylinder (9), a left guide rod (5), a right guide rod (14) and a pedestal (10); wherein the upper port body (1) and the lower port body (2) are respectively semi-cylindrical shells and are connected with the guider rod (5), the guide rod (6), a guiding system and the outer air cylinder (9) provided with a lifting actuated rod (20); when the underwater pipeline dry type welding working port works, the upper port body (1) and the lower port body (2) can be completely opened and overlapped into a closed complete shell; when the underwater port body is spanned on a pipeline (23) waiting for welding and clasps the pipeline, high pressure air is injected into the port to drain the water in the port out, then a welding tractor can depart from a guide rail to implement underwater man-free automatic dry-type welding. The underwat