Ship segmented sand blasting steel pipe protection method

Abstract

The invention relates to a ship segmented sand blasting steel pipe protection method. The method comprises the following steps that an inner-support pipe plug is taken, wherein the pipe plug comprisesa cover plate, a fixing nut is arranged on the front of the cover plate, a sleeve is arranged on the back of the cover plate, a lead screw penetrates through the fixing nut, a bolt cover is connectedto the lower end of the lead screw, a seal plate is arranged at the bottom of the bolt cover, a bracing tube is arranged on the back of the seal plate, a circle of connecting rod is arranged on the outer side of the sleeve, a circle of brace rod is arranged on the outer side of the bracing tube, and a circular fillet is arranged on the outer side of the lower end of the brace rod; the cover plateis closely attached to the end of the steel pipe, the lead screw is tightened through a handle from outside, the brace rod expands outwards, the pipe plug is firmly fixed by means of friction force between the lower end of the brace rod and the inner wall of the steel pipe, and then when segmented sand blasting is conducted, the steel pipe is protected. According to the ship segmented sand blasting steel pipe protection method, after a bolt is tightened, the pipe plug can bear the steel pipe with the weight being 20 kg, firmness is achieved, slipping is not likely to occur, binding is not needed, the method is not like a wooden plug needing to be hammered tightly, and convenience and practicability are achieved.

Description

technical field [0001] The invention relates to a method for protecting a ship's segmented sandblasting steel pipe, which belongs to the technical field of ship repairing and building. Background technique [0002] Sandblasting and painting are required after the ship sections are completed, and the installed valves and steel pipes need to be protected to prevent sand and dust particles from entering and causing harm. The traditional method is to seal the plastic pipe cap at the flange end of the pipe, or tie it with iron sheet and three-proof cloth, or seal it with a tapered wooden plug. However, the outer plates next to the side pipes in the engine room are all linear, and the iron sheets cannot be bound, and the ports are waist-shaped, and end caps or wooden plugs cannot be used. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a protection method for ship segmented sandblasting steel pipes in view of the abov...

AI Technical Summary

Problems solved by technology

However, the outer plates next to the side pipes in the engine room are all linear, and the iron sheets cannot be bound, and the ports are waist-shaped, and end caps or wooden plugs cannot be used.

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