Large-diameter penstock outer ring bottom arc welding equipment and method

Abstract

The present application relates to the technical fields of large diameter steel pipe welding, in particular to a large diameter pressure steel pipe outer ring bottom arc welding equipment, which comprises a pressure steel pipe body, the outer wall of the pressure steel pipe body is provided with a connecting ring, the connecting ring is composed of two symmetrical arc plates, the side end of the connecting ring is fixedly connected with a guide ring, the side end of the guide ring is provided with a control box, the side end of the control box is provided with a sliding groove, the control box is slidably connected with the guide ring through the sliding groove, the upper end of the pressure steel pipe body is provided with a mounting plate, the upper end of the connecting ring is provided with four connecting plates, the connecting plates are fixedly connected with the connecting plate through buckles or screws, the control box is slidably connected with a control plate in the middle, the side end of the control box is fixedly connected with a preheating control mechanism, the preheating control mechanism is composed of a connecting piece, a receiving plate and an electrode piece, the side end of the preheating control mechanism is provided with a welding control mechanism, the present application can preheat before self-love welding, ensure the welding quality, and avoid misplacement of welding.

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