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2020 №01 (06) DOI of Article
10.37434/tdnk2020.01.01
2020 №01 (02)

Technical Diagnostics and Non-Destructive Testing 2020 #01
Technical Diagnostics and Non-Destructive Testing #1, 2020, pp. 8-16

Evaluation of the state and prediction of breaking load at acoustic-emission testing of pressure vessels with limited access to controlled surface

S.A. Nedoseka1, M.A. Yaremenko1, M.A. Ovsienko1, A.Ya. Nedoseka1, S.V. Zhuravljov1, B.M. Obodovskii2, O.K. Savchenko2, S.G. Epov2
1E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
2JSC «Odessa Port Plant», 3 Zavodskaya Str., 65481, Yuzhne, Odessa distr., Ukraine. E-Mail: office@opz.odessa.ua

Peculiarities of conducting acoustic-emission control are considered in the case of the object of air distribution station K-158 of water treatment shop of OPP during pneumatic testing. This object of control consists of three interconnected pressure vessels, enclosed into a metal case, so that access to each individual vessel is limited. It is shown that how it is possible to conduct acousticemission control in such a case, and obtain results, suitable for prediction of breaking load. It is noted that application of zone location at such testing allows solving the problem of evaluation of the state of inner vessel surfaces inaccessible for control without dismantling the outer case. Destructive loading for each of the objects of control was calculated, proceeding from the results of two stages of pneumatic testing. It is shown that their current state is satisfactory and allows their further operation. It is recommended to take into account the obtained results, when preparing the normative materials on acoustic-emission control. 9 Ref., 2 Tabl., 8 Fig.
Keywords: acoustic-emission control, breaking load, prediction, zone location

Received: 10.01.2020
Published: 10.03.2020

References

1. Nedoseka, A.Ya., Nedoseka, S.A., Yaremenko, M.A. (2011) Continuous monitoring of main gas pipelines and gas compressor stations by acoustic emission method. Tekh. Diagnost. i Nerazrush. Kontrol, 4, 3-13 [in Russian].
2. (2003) DSTU 4227-2003 [in Ukrainian].
3. (2003) DSTU 4223-2003: Boilers, pressure vessels and pipelines. Technical diagnostics. General requirements [in Ukrainian].
4. (2014) General requirements. TK-78 TDNK, Kyiv [in Ukrainian].
5. (2006) SOU 50.07-2006: Procedural recommendations on acoustic emission diagnostics. General requirements. TK-78 TDNK, Kyiv [in Ukrainian].
6. (1995) Procedure «Acoustic emission diagnostics» (approv. by State Health Protection) [in Ukrainian].
7. Nedoseka A.Ya., Nedoseka, S.A., Yaremenko, M.A. et al. (2013) Software of AE diagnostic systems EMA-3.9. Tekh. Diagnost. i Nerazrush. Kontrol, 3, 16-22 [in Russian].
8. Paton B.E., Lobanov L.M., Nedoseka A.Ya. et al. (2016) Smart technologies for evaluation of structure state (AE technologies and new generation control equipment on its basis). Ibid, 2, 3-18 [in Russian]. https://doi.org/10.15407/tdnk2016.02.01
9. Nedoseka A.Ya. , Nedoseka S.A., Yaremenko M.A., Ovsienko M.A. (2018) Aplication of the technology of acoustic emis-sion monitoring at evaluation of the condition of vessels in chemical production. Ibid, 1, 34-41 [in Russian]. https://doi.org/10.15407/tdnk2018.01.05
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