Embracing hoop device based on triangular structure

Abstract

The invention discloses a hoop device based on a triangular structure, relates to the technical field of oil pipeline hoops, and avoids the inability to ensure the stability of the oil pipeline clamping in the prior art; it includes a support mechanism for hugging the oil pipeline periphery and an adjustment assembly for adjusting the distance between the support mechanisms and locking them. The support mechanism includes an upper support plate and a lower support plate oppositely arranged. There are three hoop plates and three sets of hoop plates for contacting the oil pipeline inside the support mechanism. An adjustable component that supports the hoop plate and is vertically connected with the support plate. The materials of the three hoop plates are all made of NBR. The three sets of adjustable components can make the corresponding hoop plate radially adjusted along the oil pipeline. 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, the ductile triangular hoop mechanism is used to realize the stability of clamping the oil pipeline.

Description

technical field [0001] The invention relates to the technical field of oil pipeline hoops, in particular to a hoop device based on a triangular structure. 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 opera...

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