Pipeline emergency plugging technology

(I) Classification of common pipelines

Common pipelines are classified according to their different titles. According to different manufacturing materials, they can be divided into: ordinary carbon steel pipes, alloy steel pipes, stainless steel pipes, non-ferrous metal pipes and plastic pipes. In accordance with the production of forming can be divided into: general welded pipe, seamless pipe, threaded pipe and so on. According to the different transmission media can be divided into: plumbing pipes, steam pipes, oil and gas pipelines. In accordance with the surface treatment conditions can be divided into: galvanized pipe, asphalt anti-corrosion pipe (special reinforcement ), foam jacket pipe (yellow / black), rubber winding pipe , glass fiber reinforced plastic pipe, etc., but the most common is the diameter of the pipe (external ) and wall thickness are classified as: 4 points, 6 points, 1 inch 2 inches, 3 inches... and so on.

(II) Analysis of leakage causes of pipelines

The long-term use of various types of pipelines is susceptible to leaks due to various factors. The main causes are: First, fatigue cracking or perforation, that is, the pipeline is subject to fatigue and cracking under long-term transport fluid loading conditions. Or piercing leaks. The second is corrosion cracking or perforation, that is, cracking or perforation due to the corrosion of the transport medium or external corrosion and oxidation (such as exposed water in the pipeline, exposure to high corrosion acid and alkali salts, etc.) Third, stress concentration cracking: including external force and pipe temperature difference. Internal stress caused: such as around the weld seam, weld joints, pipe tee openings, or fitting connections. The fourth problem is that piracy is a perforation. It is not only for lawbreakers to open up holes for profiteering.

(III) Basic Requirements for Pipeline Emergency Plugging Technology

The basic requirements for pipeline emergency plugging technology are: safe, fast, and reliable. Safety is the first priority for pipeline emergency plugging technology. No matter which technology is adopted, safety should be completely guaranteed. Both: emergency can not be anxious, emergency can not be distressed as the basic principle, fast refers to the leakage of the pipeline is related to the safety of people's livelihood, economic responsibility, and must complete the plugging quickly and efficiently. Reliable means that the plugging must be thorough and reliable, and the credibility must be safe to meet the requirements of use.

( four) pipeline plugging tools

GRS Plugging Tools

Pipeline plugging casing is the necessary special plugging equipment for emergency rescue . It is made of stainless steel and compounded with a corrosion-resistant rubber sealing plate lined with special structures. With a wide range of pipe diameter to adapt to, large plugging area, quick and easy installation, reusable, excellent sealing performance, resistance to vibration and so on.

Quickly seal leaks of various water, oil, gas, acid, alkali, salt and various organic solvents with rapid leak-blocking glue, which can be used for rapid pressure plugging of pipelines. Holes, holes, and seams in pipes can be directly plugged. Can also be used instead of flanges, welding and other methods for the connection of new pipes.

Features:

1 , flexible connection

It can be attached to the outer circle of the pipe tightly with the shape of the pipe, which overcomes the defects that the diameter of the plugging fixture and the leaking point in the plugging technology are not easily matched, and the reliability and stability are enhanced.

2 , safe and reliable

The sealing rubber ring consists of several hexagonal honeycomb structures, which are several sealed units and can be sealed step by step. In the case of heavy rust in the pipeline, and with unfavorable conditions such as oil and sand, the sealant can be effectively embedded into the pipe surface. Make sure that leakage is safe and reliable within the allowable pressure range.

3 , strong corrosion resistance

Stainless steel shell, strong and corrosion-resistant, special structure of the sealing rubber ring, can adapt to different fluid requirements within the pipeline.

4 , fast installation

Fast installation, easy to use, no need for professionals, no fire, no professional tools, single operation 5-15 minutes to complete the work, restless space can be completed installation.

Some of the information in this article comes from the Internet and is reorganized and edited by China Rescue Equipment Network.