At present, steel pipes with socket welded joints have been widely used abroad. It is the second generation product of the traditional steel pipe. It changes the butt weld interface of the traditional steel pipe to the lap weld interface, improves the quality of the interface weld, reduces the stress concentration of the circumferential weld, and avoids the explosion and leakage of the aluminum alloy pipe.

When the thread lock ring heat exchanger is in use, there are often many problems. Of course, we will pay attention to maintenance and adjustment to reduce the defects of the thread lock ring heat exchanger. However, the small editor wants to remind everyone that the maintenance of the thread lock ring heat exchanger can reduce the problems, but will not stop the problems, so the problems appear.

When the aluminum alloy pipeline is in use, there will be some leakage. Once the leakage occurs, the pressure opening and sealing shall be stopped in time to reduce the consumption of resources. There are many methods and technologies in the plugging of pressurized openings. One of them is called fast banding technology, which is more convenient to use. Next, Mr. Chen will talk about the fast banding technology in the plugging of pressurized openings in detail

The pressure tapping of aluminum alloy pipeline deals with the traditional operation methods such as shutdown, depressurization, release and open fire during the pipeline on-line maintenance Stop the risk of homework. Improve the integrity of the project. Make the maintenance quick, economical and reliable. For many years, it has been the domestic urban gas pipe network Oil and petrochemical pipeline owners provide excellent mechanical tools and services The end of the closing chamber is covered with elements for half a day. The heat exchanger tubes at the inlet and outlet are separated by near pure countercurrent heat. The temperature correction coefficient is 1.0, which can greatly reduce the heat.