Thread Content
With the continuous development of modern industrialization, pipeline installation can be seen everywhere, and pressure-opening techniques used during this process provide us with a convenient and fast method. Let us introduce the requirements for pressure-containing opening installation and welding operations in order to seal the pressurized openings. The pressure for pressure welding should not exceed 1.0 MPa, and the remaining wall thickness of the pipe should be greater than 5 millimeters in order to block the pressure opening. When welding pressure-bearing pipe fittings with openings, the flow rate of gas or liquid inside the pipeline must be strictly controlled. Mechanical pipe fittings are generally used for pressure-opening of pipes and for the construction of special tee or cross connections used to seal such openings under pressure. In the construction of large-diameter high-pressure pipelines, the equal-area reinforcement method can be used to reinforce the pipeline openings. The pressure-sealed joint must be perpendicular to the cut tube, and welded using a qualified welding process. When assembling the drilling and sealing equipment, wipe all joint surfaces clean and tighten the bolts. Generally speaking, when sealing the bare eye under pressure, we should strictly adhere to the requirements. Make preparations to prevent accidents before carrying out hole opening under pressure. Pressure sealing is widely used in our construction processes. As our production technologies continue to advance, more and more high-tech construction methods have been developed. Next, we will introduce the working principle and applications of the pressure hole plugging pressure test. The working principle of the pressure hole plugging pressure test is to inflate a balloon made of high-quality rubber. When the air pressure inside the water-blocking balloon reaches the specified level, the balloon fills the entire pipe section; the friction between the wall of the balloon and the pipe is used to seal any leaks, thereby ensuring that the target pipe section does not leak. The pressure-bearing hole-opening technology is suitable for maintenance testing tasks such as water shutdown tests, gas shutdown tests, searches, and temporary water shutdowns for pipeline maintenance. After the drainage pipes are sealed. Pressurized tapping is suitable for pipes with scaling and corrosion on their inner walls, as well as pipes that are irregularly deformed; it is generally used in production pipelines in oil fields and petrochemical systems. This process features tight sealing and is not limited by pipeline aging. Pipe plugs are suitable for long-distance pipelines with standard pipes, where the inner walls of the pipes are free from scaling and corrosion. They are primarily used in long-distance pipelines for transporting oil, natural gas, and refined petroleum products, as well as for the repair of such pipelines.