English

Vol. 9 4, 2019 p 394-401

Pages

Article name, authors, abstract and keyword

394-401

The analysis of the operating mode of the large volume oil tank

Nikolay N. Gorban a, Gennady G. Vasilyev b, Igor A. Leonovich b

a Caspian Pipeline Consortium (CPC), JSC, 7, bldg 1, Pavlovskaya Str., 115093, Moscow, Russian Federation
b Gubkin Russian State University of Oil and Gas (National Research University), 65 Leninsky Prospect, Moscow, 119991, Russian Federation

DOI: 10.28999/2541-9595-2019-9-4-394-401

Abstract: Analysis of the stress-strain state of the tank is the most promising method for assessing its technical condition and predicting the service life. The most important condition for the accuracy of calculations is the data of the real geometry and operating mode of the tank. As part of analyzing the loss of stability of a cylindrical shape or determining the geometric imperfections of a design, the Russian and foreign design methods focus on the estimation of local geometry. However, for non-standard objects, in particular large volume tanks with a complex loading mode, such assessment methods are not enough. These structures can be implemented mechanisms of destruction, excluded for simpler objects. In order to study the possible operating modes of atypical objects, the authors analyzed the regulatory and methodological documentation in the field of operation of vertical steel tanks and considered integrated approaches to the justification of low-cycle strength. An example of the operating mode analysis of a tank with a capacity of 100,000 m3 from the tank farm of the marine terminal of the Caspian Pipeline Consortium is given. It is shown that geometrical defects can lead to the realization of a low-cycle fracture mechanism and consequently this should be taken into account when assessing the stress-strain state of the structure. An algorithm is proposed for estimating the low-cycle strength of large volume tanks by using ground-based laser scanning technology.

Keywords: vertical steel tank, marine terminal, stress-strain state, low-cycle fatigue, loading mode.

For citation:
Gorban N. N., Vasilyev G. G., Leonovich I. A. The analysis of the operating mode of the large volume oil tank. Nauka i tehnologii truboprovodnogo transporta nefti i nefteproduktovScience & Technologies: Oil and Oil Products Pipeline Transportation. 2019;9(4):394401.

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