Abstract
Leakage in heat exchanger tubes can result in unreliable products and dangerous situations, which could cause great economic losses. Along with fast development of modern acoustic detection technology, using acoustic signals to detect leakage in heat exchange tube has been gradually accepted and considered with great potential by both industrial and research societies. In order to further advance the development of acoustic signal detection technology and investigate better methods for leakage detection in heat exchange tube, in this paper, firstly, we conduct a short overview of the theory of acoustic signal detection on heat exchanger tube, which had already been continuously developed for a few decades by researchers worldwide. Thereafter, we further expound the advantages and limitations of acoustic signal detection technology on heat exchanger tube in four aspects: 1) principles of acoustic signal detection, 2) characteristics of sound wave propagation in heat exchanger tube, 3) methods of leakage detection, and 4) leakage localization in heat exchanger tube.
Highlights
Using the modern acoustic technology to detect the acoustic signal of leakage in heat exchanger tube plays an important role
We summarize and analyze the theory of acoustic detection for heat exchanger leakage, including: 1) principles of acoustic signal detection, 2) characteristics of sound wave propagation in heat exchanger tube, 3) methods of leakage detection, and 4) leakage localization in heat exchanger tube, so as to provide a theoretical basis for further development of leakage detection technology in heat exchanger tube
This paper summarizes the heat exchanger acoustic signal detection theory, which can provide the basis for fault diagnosis of heat exchanger
Summary
Using the modern acoustic technology to detect the acoustic signal of leakage in heat exchanger tube plays an important role. Since acoustic signal detection is one of the means with most promising potential to forecast tube burst accidents, and studying the theory of heat exchanger acoustic signal will promote the development of acoustic detection technology. We summarize and analyze the theory of acoustic detection for heat exchanger leakage, including: 1) principles of acoustic signal detection, 2) characteristics of sound wave propagation in heat exchanger tube, 3) methods of leakage detection, and 4) leakage localization in heat exchanger tube, so as to provide a theoretical basis for further development of leakage detection technology in heat exchanger tube. This paper summarizes the heat exchanger acoustic signal detection theory, which can provide the basis for fault diagnosis of heat exchanger. The comparison between the advantages and disadvantages of the heat exchanger’s sound signal detection methods can help researchers to select and perfect the methods of leakage acoustic signal detection
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