Open AccessTechnical condition examination of heat exchanger tubes with an acoustic pulse reflectometry method
Author(s) -
D. V. Inshakov,
К. А. Кузнецов
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1636/1/012016
Subject(s) - heat exchanger , reflectometry , tube (container) , materials science , acoustics , pulse (music) , degree (music) , signal (programming language) , mechanics , mechanical engineering , computer science , engineering , composite material , physics , electrical engineering , voltage , time domain , computer vision , programming language
Diagnostics of the technical condition of heat exchanger tube bundles is considered in the paper. The main problem is associated with the large total length of tubes in bundles and a limited time for examination. For examination of the internal clearance of pipes the method of acoustic pulse reflectometry, known in a science and technology, was used. This method was implemented in PAKT-04 device for express-inspection of heat exchangers. It is proposed for characterizing the wear of the tubes to introduce a generalized quantitative parameter called “defectiveness degree”. The parameter is determined by change of acoustic signal propagating in the tube. The value of defectiveness degree indicates the applicability the tube for operation in the heat exchanger. The results of measuring the parameter on different heat exchangers are discussed.