8th International Conference on Communications and Networking in China

Research Article

A Case Study: Monitoring Heat Exchanger Based on Vibration Sensors and Nondestructive Testing Technique

  • @INPROCEEDINGS{10.1109/ChinaCom.2013.6694649,
        author={Mulan Pang and Lei Shu and Jianjian Lu and Xufeng Zhu and Joel Rodrigues},
        title={A Case Study: Monitoring Heat Exchanger Based on Vibration Sensors and Nondestructive Testing Technique},
        proceedings={8th International Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2013},
        month={11},
        keywords={vibration sensor fault diagnosis heat exchanger time domain analysis},
        doi={10.1109/ChinaCom.2013.6694649}
    }
    
  • Mulan Pang
    Lei Shu
    Jianjian Lu
    Xufeng Zhu
    Joel Rodrigues
    Year: 2013
    A Case Study: Monitoring Heat Exchanger Based on Vibration Sensors and Nondestructive Testing Technique
    CHINACOM
    IEEE
    DOI: 10.1109/ChinaCom.2013.6694649
Mulan Pang1, Lei Shu1,*, Jianjian Lu1, Xufeng Zhu1, Joel Rodrigues2
  • 1: Guangdong University of Petrochemical Technology, China
  • 2: University of Beira Interior, Protugal
*Contact email: lei.shu@lab.gdupt.edu.cn

Abstract

Flow-induced tube vibration could cause serious damage on large-scale circulating-water heat exchanger in factories, e.g., atomic reactors, nuclear power plants, petroleum and chemical industry. Therefore, efficient inspection technology is very important for heat exchanger’s blockage and leakage. The existing detection technologies, like temperature test and pressure test, are very easily affected by extraneous factors, e.g., temperature and pressure, while the nondestructive testing technology based on vibration sensors is free from above limits. In this paper, we use vibration sensors to detect blockage and leakage of the circulating-water heat exchanger. According to the experimental results, it is found that when detecting heat exchanger’s blockage and leakage with vibration sensors, environmental vibration from the working machines has influence upon the result, while pump vibration and vibration produced by liquid flowing through regulating-valve make little difference. Nevertheless, fault diagnosis of large-scale circulating-water heat exchanger, which uses nondestructive testing technology based on vibration sensors, needs to be further improved.