Method for pressure testing of overboard discharge pipe

Abstract

The invention provides a method for pressure testing of an overboard discharge pipe, and the method comprises the following steps: installing a stopper at an opened end of the overboard discharge pipe, wherein the stopper is detachably connected with the overboard discharge pipe; injecting compressed air into the stopper, so as to block the opened end of the overboard discharge pipe; connecting a first pressure meter assembly at a flange end of the overboard discharge pipe; letting compressed air into the overboard discharge pipe through the first pressure meter assembly, and detecting the airtightness of the first pressure meter assembly. The method can achieve the quick testing of the airtightness of the overboard discharge pipe, is very simple in operation, is higher in efficiency, saves the materials, and is lower in cost.

Description

technical field [0001] The invention relates to the field of ship hull tooling, in particular to a method for pressure testing an overboard outer pipe. Background technique [0002] Overboard outer pipe refers to the pipe structure with a flange welded at one end in the field of hull tooling. When the outboard outer pipe is put into use, the fixing between the flange and the end of the pipe structure needs to be reliably guaranteed. Before the manufacture and production of the overboard outer tube is completed and put into use, it is necessary to carry out a pressure test to ensure the reliability of the sealing effect of the overboard outer tube, so that it will have a longer service life and a better use effect in the later work. At present, in the pressure test process of the ship's outboard pipe, the blind plate is welded at the end of the pipe structure of the outboard pipe or a wooden plug is driven into the end of the pipe structure to seal the outboard pipe, and then...

AI Technical Summary

Problems solved by technology

At present, in the pressure test process of the ship's outboard pipe, the blind plate is welded at the end of the pipe structure of the outboard pipe or a wooden plug is driven into the end of the pipe structure to seal the outboard pipe, and then Then carry out the pipe pressure test. After the pressure test, use the wind to cut off the blind plate welded at the port of the outer pipe of the sideboard, and polish the welding position and carry out work such as touch-up paint. The efficiency is generally low, and the wooden plug is sealed. The sealing effect is generally unsatisfactory, and the cork cannot be reused many times after disassembly, and the cost is high

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