Hoop device for petroleum pipeline

Abstract

The invention discloses a hoop device for oil pipelines, relates to the technical field of hoop hoops for oil pipelines, and is used to solve the problem that the stability of oil pipeline clamping cannot be guaranteed in the prior art; Two sets of arc-shaped mechanisms on the oil pipeline, and an adjustment assembly for adjusting and locking the distance between the two sets of arc-shaped mechanisms. Both sets of arc-shaped mechanisms include arc-shaped hoop plates and arc-shaped hoops for supporting The supporting components of the plate, the material of the arc-shaped hoop plate is NBR, and each set of support components is symmetrically arranged at both ends of the arc-shaped hoop plate and can support the radial adjustment of the arc-shaped hoop plate along the oil pipeline, and the arc-shaped hoop plate A hollow cavity filled with a low-melting-point metal alloy is arranged in the hoop plate, and a heater for heating the low-melting-point metal alloy is arranged in the hollow cavity. By implementing the technical solution, it can adapt to oil pipelines of different sizes to a large extent, and the stability of clamping the oil pipeline can be guaranteed through the ductility of the arc mechanism.

Description

technical field [0001] The invention relates to the technical field of oil pipeline hoops, in particular to a hoop device for oil pipelines. Background technique [0002] The transportation of oil needs to rely on oil pipelines of different diameters. In the oil industry, long pipelines need to be laid for oil transportation. However, because most of the oil pipelines are laid in relatively harsh environments, leakage and rupture often occur. If the damage is too large to repair welding, it is necessary to cut off the damaged part and replace it with a new pipe in time. During the replacement process, it is necessary to ensure that the cut pipe is flat. But existing operation is generally surrounded the outer wall of oil pipeline by a people with circle band, and another people draws a line along circle band with special stone pen, then cuts along the line drawn. The problem with this method is that when the diameter of the pipe is large, two people must operate at the same...

AI Technical Summary

Problems solved by technology

The problem with this method is that when the diameter of the pipe is large, two people must operate at the same time to complete the work of drawing the line, which is a waste of manpower, and cutting according to the drawn line is often impossible to ensure that it is even, affecting the final connection with the new pipe section The connection and sealing effect

The hoop in this technical solution will keep the position of the cutting ring fixed, ensuring that the cutter cuts the oil pipeline smoothly. However, this technical solution still has the following disadvantages: 1. The two ends of the semicircular shell A are respectively slidably arranged on the The size of the hoop can only be fine-tuned in the two ends of the semicircular shell B, which can be adapted to oil pipelines of different sizes to a certain extent, so that the application of the hoop has great limitations; 2. Although the front end of the slot is The arc-shaped structure enables the hoop to be more firmly set on the oil pipeline, but the arc-shaped mechanism is fixed, which cannot guarantee the stability of the oil pipeline clamping

Images