Petroleum pipeline cutting mark belt

Abstract

The invention discloses a petroleum pipeline cutting mark belt comprising a steel belt piece, wherein a rectangular connecting head is installed at one end of the steel belt piece, a steel column protruding outwards is arranged at the center of the rectangular connecting head, and a positioning screw hole is formed in other end of the steel belt piece, opposite to the rectangular connecting head; multi-level positioning holes are formed in the surface of the steel belt piece, horizontal fixed mounts are respectively arranged at the two end parts of the steel belt piece, and steel claws are respectively arranged at two ends of each horizontal fixed mount. The petroleum pipeline cutting mark belt has the beneficial effects that a steel belt is wound on a pipeline and is connected end to end, so that the steel column is inserted into the proper positioning hole and is screwed, a slate pencil draw lines on the pipeline along the edge of the stainless steel belt, and then the pipeline is cut; the time and the labor are saved, and the parallel and level degree and the airtightness of the subsequent cutting can be ensured; due to the arrangement of the two levels of horizontal fixed mounts and the configuration of the corresponding steel claw, the condition that a cutting belt can not be moved anymore in the whole line drawing process can be ensured.

Description

technical field [0001] The invention relates to an auxiliary tool for oil pipeline maintenance, in particular to an oil pipeline cutting marking tape. Background technique [0002] At present, pipe fittings used in petroleum, chemical industry, electric power, shipbuilding, metallurgy, machinery, textile, food, construction, pharmaceutical and other industries need to have high strength, pressure resistance, corrosion resistance and high temperature resistance. In the oil industry, it is necessary to lay long pipelines for oil transportation, but because most of the oil pipelines are laid in relatively harsh environments, leakage and rupture often occur. Repair welding is performed on the pipe. If the damage is large and repair welding is impossible, the damaged part needs to be cut off and replaced with a new pipe section. During the replacement process, the cutting nozzle should be kept flush. Now the general process is to manually surround the outer wall of the oil pipel...

AI Technical Summary

Problems solved by technology

Now the general process is to manually surround the outer wall of the oil pipeline with a circle, and another person draws a line along the circle with a special stone pencil, and then cuts along the drawn line. When the pipe diameter is large, two Only one person can complete the line drawing work at the same time, which is a waste of manpower, and due to the lack of effective tools, the drawn lines are often not guaranteed to be even, which affects the final connection and sealing effect with the new pipe section

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