Magnetic flux leakage testing improves work efficiency and reduces operational risks and equipment downtime costs
Dushanzi Petrochemical Company (Dushanzi Petrochemical) has significantly improved its work efficiency and reduced operational risks and plant downtime costs after adopting magnetic flux leakage detection technology. Specifically, the application of this technology has shortened the inspection time of tank bottom plates by more than 50% compared with traditional methods. This not only solves the problem of the detection trolley offset, but also reduces the situation of repeated operations, especially in the case of large-area tank bottom plates.
Advantages of magnetic flux leakage detection technology
The reason why magnetic flux leakage detection technology can bring such a significant improvement in efficiency is that it utilizes the high magnetic permeability characteristics of ferromagnetic materials. When the magnetic field acts on the object being tested, if there are defects inside the material, such as corrosion or cracks, these defects will cause the magnetic lines of force to be distorted, forming the so-called "leakage magnetic field". By capturing and analyzing the changes in these leakage magnetic fields with special equipment, the location and severity of the defects can be accurately located and evaluated. This method does not require the tank to be opened or stopped to complete the corrosion state detection, greatly improving the speed and accuracy of data collection2.
Application Cases
For example, in an actual application scenario of Dushihua, technicians used magnetic flux leakage detection technology to detect the bottom plate of a tank. The whole process is more than twice as fast as the previous traditional methods, while ensuring the quality of the test results. In addition, for high-temperature equipment, Dushihua also explored the best match between penetration detection temperature and sensitivity, and successfully achieved non-destructive testing in an environment above 200°C, further reducing the economic losses caused by equipment shutdown and maintenance1.
Technological innovation points
In addition to the technical improvements mentioned above, Dushihua is also constantly optimizing its application practices. For example, in terms of atmospheric pressure storage tanks, it actively promotes the application of guided wave technology to achieve equipment corrosion status monitoring without opening the tank and without stopping the work; while in high-temperature equipment, it focuses on solving the problem that conventional non-destructive testing is difficult to implement under high temperature conditions, ensuring the safe operation of various production equipment1. These efforts not only improve the efficiency of detection work, but also provide a solid guarantee for the safe production of enterprises.
Impact on employees
It is worth noting that the application of magnetic flux leakage detection technology is not only reflected in improving production efficiency, but also greatly reduces the workload of employees. Since this technology can reduce unnecessary repetitive labor and reduce the need to enter confined spaces to perform tasks, it effectively protects the safety and health of staff and improves the working environment1.
In summary, by introducing advanced magnetic flux leakage detection technology, Dushihua has not only greatly improved work efficiency, but also enhanced the company's ability to cope with complex working conditions, and contributed to the safe and stable development of the petrochemical industry. With the application and development of more similar advanced technologies, we have reason to believe that the future industrial field will become more efficient, intelligent and safe.
