Butt welding tightness device for ship piping system

Abstract

The invention discloses a butt welding tightness device for a ship piping system. The ship piping system butt welding tightness device comprises a base, an annular groove is formed in the base, a sealing piece is contained in the annular groove and comprises an inner-ring air bag and an outer-ring air bag, a connecting bridge is arranged at the bottom of the inner-ring air bag and the bottom of the outer-ring air bag, and the connecting bridge is provided with an air channel communicating inner cavities of the inner-ring air bag and the outer-ring air bag. The inner-ring air bag and the outer-ring air bag are clamped on the inner side and the outer side of the pipe wall after being inflated, the inner-ring air bag is provided with an air nozzle, the air nozzle is connected with a tee joint, the tee joint is connected with an air inlet connector through a hose, the air inlet connector penetrates through the base, and an air release valve is arranged on the side, close to the air inlet pipe, of the base. The problems that in the prior art, materials are wasted, labor is wasted, the production cost is high, and the completion period is affected are solved.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a butt welding tightness device of a ship piping system. Background technique [0002] The current trend of ship construction is unitization and modularization, and the process should be constantly moved forward, and the product construction should be completed in the stage of subsection and middle group as much as possible, so as to realize commercialization and intermediate productization. In particular, there are all kinds of pipelines on the deck of chemical tankers, because the regulations require most of the pipelines to be welded in the form of butt welding to ensure that the pipeline system does not leak. In the process of unitized and modular construction, it is difficult to carry out the tightness test of the local integrity piping system (the tightness test mainly checks whether there are defects in the pipes and welds). The existing scheme adopts the full welding of th...

AI Technical Summary

Problems solved by technology

The existing scheme adopts the full welding of the stuffy plate at the pipe end, and it is necessary to cut off the stuffy plate in the later stage of butt welding, and re-bevel the pipe end (the bevel opening in the pipe system production stage is processed by machine, and it is manually polished at the current stage, which ensures quality and efficiency. Significantly decreased), not only the waste of materials and labor leads to high production costs, but also affects the completion cycle

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