Chapter 32
Study on a Method of Corrosion Acoustic
Emission Location for the Tank Floor
Zhihai Hu, Keqin Ding, Huazhong Wei, and Jiwang Zhang
Abstract Storage tank is one of the most important equipment for oil and gas storage
and transportation. With the increase of the running time, a lot of harmful substances
are deposited on the bottom of the tank. When acoustic emission is used to monitor
corrosion defects on the floor of storage tank, there are many interfering factors, which
make it difficult to locate corrosion defects. In order to accurately locate the acoustic
emission signals source in the damaged part of tank floor, a positioning method is
proposed. This method analyzes the propagation mode of the source signals from the
corrosion defect, and then establishes an appropriate three-dimensional cylindrical
coordinate system based on the relative position of the sensor and the corrosion
space on the geometric relation between them in the coordinate system, the relation
between the position of the sound source and the time difference of the sound signals
is deduced. And to simplify the calculation, after the position of the coordinate
system is determined, the Angle between the sensors is changed to make its relative
position a special Angle, which makes the calculation faster. Before the monitoring,
the layout of acoustic emission sensors in the corrosion monitoring of tank floor
was determined to increase the positioning accuracy. It provides some guidance for
monitoring tank floor corrosion location by acoustic emission.
32.1 Introduction
Atmospheric pressure storage tank plays an important role in oil and gas storage and
transportation. The corrosion of tank floor is often complicated and changeable, and
there are many inducing factors. This makes the oil and gas storage process has a
huge safety hazard [1–3]. In the current nondestructive testing, acoustic emission
monitoring method has the advantages of convenience, rapidity, low cost and high
Z. Hu · H. Wei
School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Hubei, Wuhan
430205, China
Z. Hu · K. Ding (B) · J. Zhang
China Special Equipment Inspection and Research Institute, Beijing 100013, China
e-mail: kqding@sina.com
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
G. Shen et al. (eds.), Advances in Acoustic Emission Technology, Springer Proceedings
in Physics 259, https://doi.org/10.1007/978-981-15-9837-1_32
377
Study on a Method of Corrosion Acoustic
Emission Location for the Tank Floor
Zhihai Hu, Keqin Ding, Huazhong Wei, and Jiwang Zhang
Abstract Storage tank is one of the most important equipment for oil and gas storage
and transportation. With the increase of the running time, a lot of harmful substances
are deposited on the bottom of the tank. When acoustic emission is used to monitor
corrosion defects on the floor of storage tank, there are many interfering factors, which
make it difficult to locate corrosion defects. In order to accurately locate the acoustic
emission signals source in the damaged part of tank floor, a positioning method is
proposed. This method analyzes the propagation mode of the source signals from the
corrosion defect, and then establishes an appropriate three-dimensional cylindrical
coordinate system based on the relative position of the sensor and the corrosion
space on the geometric relation between them in the coordinate system, the relation
between the position of the sound source and the time difference of the sound signals
is deduced. And to simplify the calculation, after the position of the coordinate
system is determined, the Angle between the sensors is changed to make its relative
position a special Angle, which makes the calculation faster. Before the monitoring,
the layout of acoustic emission sensors in the corrosion monitoring of tank floor
was determined to increase the positioning accuracy. It provides some guidance for
monitoring tank floor corrosion location by acoustic emission.
32.1 Introduction
Atmospheric pressure storage tank plays an important role in oil and gas storage and
transportation. The corrosion of tank floor is often complicated and changeable, and
there are many inducing factors. This makes the oil and gas storage process has a
huge safety hazard [1–3]. In the current nondestructive testing, acoustic emission
monitoring method has the advantages of convenience, rapidity, low cost and high
Z. Hu · H. Wei
School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Hubei, Wuhan
430205, China
Z. Hu · K. Ding (B) · J. Zhang
China Special Equipment Inspection and Research Institute, Beijing 100013, China
e-mail: kqding@sina.com
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
G. Shen et al. (eds.), Advances in Acoustic Emission Technology, Springer Proceedings
in Physics 259, https://doi.org/10.1007/978-981-15-9837-1_32
377