2. Home
  3. ARCHIVE
  4. 2024
  5. VOL 46, NO 6 (2024)
  6. pp. 55-63

Correlation parametric method for determining the velocity of acoustic wave propagation in a pipeline

A.A. Vladimirsky, Dr. Sc., I.A. Vladimirsky, PhD
G.E. Pukhov Institute for Modelling in Energy Engineering of the NAS of Ukraine
Ukraine, 03164, Kyiv, 15 Generala Naumova St.,
tel. +38 (050) 2503612, +38 (050) 7116930 e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Èlektron. model. 2024, 46(6):55-63

https://doi.org/10.15407/emodel.46.06.055

ABSTRACT

The article is devoted to the experimental determination of the actual velocity of acoustic waves propagation through underground pipelines of centralized heat and water supply of ci­ties. The relevance of the problem is caused by the production necessity to increase the efficiency of diagnostics of the corresponding worn-out networks. Especially it concerns swift search of leaks, which daily occur in large cities of Ukraine. The search is carried out by correlation leak detectors, the accuracy of which depends on the accuracy of setting the speed of propagation of hydraulic shock waves along the pipeline, which generates the sought leak. Since the velocity values programmed in the devices do not always correspond to the actual values, the reasons for this discrepancy and the modes of velocity refinement in the known modern devices are analyzed. Their disadvantages concerning the use in domestic networks are given and the corresponding correlation parametric method is proposed. It consists of the artificial creation of acoustic probing signals and spatial-frequency selection of pipeline response to this probing. An application example of the method is given. Its advantages and useful features are given.

KEYWORDS

leakage, correlation, parametric, leak detector.

REFERENCES

  1. Semenyuk D.N. (2006) Features of the search for leaks in underground pipelines of heating networks. Plumbing, heating, air conditioning. № 6, p. 10-12. URL: https://www.c-o-k.com.ua/content/view/444/ (date of access: 1.10.2024).
  2. Rewerts, L.E., Roberts, R., and Clark, M.A. (1997) “Dispersion compensation in acoustic emission pipeline leak location”, Plenum Press, pp. 427-
    https://doi.org/10.1007/978-1-4615-5947-4_57
  3. Ovarro connecting technologies. Eureka5. URL: https://ovarro.com/en/global/solutions/monitoring--control-devices/data-loggers--leak-noise-loggers/leak-noise-loggers--correlators/ 3/eureka/2/ (date of access: 1.10.2024).
  4. AquaScan610. URL: https://www.environmental-expert.com/products/aquascan- model-610-water-leak-noise-correlator-208905 (date of access: 1.10.2024)
  5. TriCorr touch operating manual.URL: http://media.wix.com/ugd/8593e2_pdf (date of access: 1.10.2024)
  6. Technical Specifications URL: https://www.fastgmbh.de/images/FAST/Dokumente/ENG/ Lokal200PC/PORT/Lokal200Pc.pdf (date of access: 1.10.2024)
  7. Vladimirsky A.A. (2019) Creation of parametric methods for diagnosing underground pipelines taking into account the multi-wave propagation of information signals. Èlektronnoe mo­delirovanie. Vol. 41, № P. 3-18. (date of access: 1.10.2024).
    https://doi.org/10.15407/emodel.41.01.003
  8. URL: https://doi.org/10.15407/emodel.41.01.003 (date of access: 1.10.2024).
    https://doi.org/10.15407/emodel.41.01.003
  9. Vladimirsky A.A., Vladimirsky I.A. (2021) Correlation parametric methods for determining the coordinates of leaks in underground pipelines. Èlektronnoe modelirovanie. Vol. 43, № P. 03-16. 
    https://doi.org/10.15407/emodel.43.03.003
  10. Patent of Ukraine № Parametric correlation method for determining the coordinates of pipeline leaks. Publication of information on 09/25/2020, Bulletin No. 18. Vladimirsky A.A., Vladimirsky I.A.
  11. Zhukovsky N.E. (1948). About hydraulic shock in water pipes. Collected Works. M.: Gostekhizdat, Vol. 2. 422 p.

Full text: PDF