Acoustic Emission Testing Technology
The phenomenon of local sources in materials releasing energy quickly to generate transient elastic waves is called acoustic emission. The technology of using instruments to detect, record and analyze acoustic emission signals and to infer the source of acoustic emission using acoustic emission signals is called acoustic emission detection technology.
ADVANTAGE
Advantages of Acoustic Emission Testing
As a cutting-edge dynamic nondestructive testing method, acoustic emission testing technology can detect the activity of defects under applied structural stress. It is more sensitive to linear defects, and stable defects do not generate acoustic emission signals. Acoustic emission testing is used for regular inspection of in-service equipment , which can shorten the equipment downtime or eliminate the need for downtime. Therefore, it has advantages in corrosion monitoring and detection of active defects that other nondestructive testing methods do not have.
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Figure | Acoustic emission testing site of Shenghua Company
AE ON STORAGE TANK
Online detection of acoustic emission of storage tanks
The application of online detection and evaluation technology of acoustic emission of storage tanks provides advanced safety assurance technology for the safe and stable operation of large petrochemical storage tanks, the reduction and avoidance of environmental pollution, the extension of the life of over-service equipment and the best maintenance decision-making. It is widely used in oil, natural gas, petrochemical and other enterprises, as well as strategic oil reserves.
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Figure | Shenghua inspectors conduct acoustic emission testing on storage tanks
PROJECT
Shenghua Case▉
Guangzhou Shenghua Technology Co., Ltd. is the earliest non-destructive testing organization in China to engage in the research of acoustic emission technology and the application of acoustic emission detection technology. It is one of the few units in China that has obtained the qualification of acoustic emission detection. Over the past 20 years, Shenghua has tested hundreds of atmospheric pressure storage tanks of various types ranging from 500 m³ to 50,000 m³, and has provided acoustic emission detection services for spherical tanks, long tube trailers, pressure vessels, etc. to customers in the petroleum, petrochemical, special equipment and other industries in and outside the province for many times.
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Acoustic emission testing of gas cylinders (left) Acoustic emission testing of natural gas pressure regulating stations (right)
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Acoustic emission detection of spherical tank (left) Acoustic emission detection of ammonia synthesis tower (right)
Acoustic emission detection technology is also widely used in the fields of electricity, material testing, metal processing, aerospace industry, transportation industry, etc. With people's deeper understanding of the theoretical research on sound sources and acoustic signal propagation, acoustic emission detection technology will usher in a new and higher level of application development prospects.