Layered progressive type no-pressure-relief pipeline leakage stopping device

Abstract

The invention relates to the technical field of pipeline first-aid repair equipment, and discloses a layered progressive type no-pressure-relief pipeline leakage stopping device. The layered progressive type no-pressure-relief pipeline leakage stopping device comprises a conveying pipeline, wherein the upper end and the lower end of a through hole on the outer surface of the conveying pipeline areindependently provided with an upper sealing mechanism and a lower sealing mechanism; the upper sealing mechanism and the lower sealing mechanism are fixedly connected through hexagon bolts; and theleft side and the right side of the inner cavity of an upper sealing and pressing plate are independently fixedly provided with a first sealant spiral channel. According to the layered progressive type no-pressure-relief pipeline leakage stopping device, due to the arrangement of a pressure relief channel in the upper sealing and pressing plate, the pressure relief channel can be used for discharging the pressure of fluid which leaks from the through hole on the conveying pipeline through the pressure relief channel, then, sealant is filled into the stopping device through a sealant injectionthrough hole, so that the leakage stopping device can be tightly laminated with the outer surface of the conveying pipeline, and the leakage stopping device has high pressure-bearing capacity to avoida problem that the through hole on the conveying pipeline leaks again under the function of high-pressure conveying, and stability and reliability are high.

Description

technical field [0001] The invention relates to the technical field of pipeline emergency repair equipment, in particular to a layered progressive non-pressure relief pipeline leak stopper. Background technique [0002] As the main transportation method of liquid or gas, pipeline transportation has the advantages of fast transportation speed, long span distance and high safety and reliability compared with other transportation methods. Therefore, it is often used for long-distance transportation of oil, natural gas, water supply and drainage, etc. , but in the process of long-distance transportation of liquid or gas by pipeline, due to the uniformity of the material of the pipeline itself and the influence of different degrees of corrosion on the outside, if things go on like this, it will cause corrosive perforation, trachoma or cracking on the surface of the pipeline , and then lead to the leakage of the transported liquid or gas. Therefore, in order to ensure the normal o...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a layered progressive non-pressure-relieving pipeline leak plugging device, which has the advantages of strong pressure bearing capacity, good plugging effect, high stability and reliability and long service life, and solves the existing problems When the leak stopper seals the corrosive perforation, trachoma or crack on the pipeline, it simply squeezes the rubber sealing ring inside to fit tightly with the outer surface of the pipeline, so as to prevent the leakage of the pipeline. The plugging operation at the place, but the pressure that this method can withstand is small. When facing some high-pressure transportation pipelines, the high pressure of the leaking fluid will continuously squeeze the rubber sealing ring, which will cause its irregular deformation. However, there are gaps and leakages, resulting in poor sealing effect and stability of the entire leak stopper, and the problem of short service life

Images