Study of internal corrosion on the turning angles in steel pipes

Bauyrzhan Manapbayev,Erkegali Amanbayev,Arman Kabdushev,Zhangazy Moldamuratov,Bazartai Alimbayevich Alimbayev

doi:10.1051/e3sconf/202122501004

Bauyrzhan Manapbayev, Erkegali Amanbayev + Show 3 more

Open Access

https://doi.org/10.1051/e3sconf/202122501004

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Abstract

Corrosive damages can lead to accidents on pipelines in various industries. Therefore, the main objective of the work is to study the peculiarities of propagation of internal corrosion on turning angles in steel pipes. The paper substantiates the primary importance of the propagation of corrosion on turning angles in steel pipes. It has been identified that in curvilinear areas, the rate of corrosion propagation depends on the rate of fluid flow, on the number of ions, and also on the effect of centrifugal force. The authors studied the average rate of corrosion propagation on the turns in steel pipes. Thus, the results obtained showed that the location of steel pipes affect the rate of corrosion propagation inside the pipes.

Highlights

Pipelines are located in different conditions depending on the terrain and depending on their activities
This phenomenon is explained by the fact that when turning steel pipes, the liquid under the influence of centrifugal forces hit the walls and washed the micelles, so the physical process is not stopped by the influence of the rate of corrosion propagation
We have found that pipes with u-turn angles, especially pipelines, can lose their trouble-free operation when turning 90° because of corrosion in comparison to sections of pipelines with straight sections

Summary

Introduction

Pipelines are located in different conditions depending on the terrain and depending on their activities They are divided into several parts: straight, curved and vertical 90° turns. Our experimental studies [1] on the propagation of corrosion have shown that the propagation of corrosion occurs more intensively on turning angles of steel pipes than on straight sections. With this regard, we conduct research on the mechanisms of corrosion propagation that occur on the inner walls of straight and curved parts of steel pipes. Works related to the study of the features of corrosion occurring on the internal walls of curved (bends and turns) pipeline sections are not large. The work in this direction has not yet been studied at the proper level

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