Technical condition parameters affecting the period of safe operation of technological pipelines

Abstract

The task is to estimate the period of technological pipelines safe operation depending on the total influence of oil refining equipment technical parameters. 9 feature properties of technological pipelines were singled out, and the estimation was made with the help of such indicator as the residual life of pipelines. The authors constructed a mathematical model, calculated the diagnostic coefficients and informative character of the characteristic for each period accepted by the expert. A mechanism for estimating the safe operational lifetime of pipeline systems is proposed. Conclusions were drawn about the advisability of applying the proposed method for solving this class of problems.

Strength analysis of flat manhole cover in case of change of location and inclination angle of two mutually intersecting scratches

“…Flat cover of manhole of apparatus is chosen as object of research. Detailed information on the characteristics of the study subject, as well as the procedure and methodology for conducting studies are given in Article [10]. Also, [10] provides information about the scratch simulation.…”

“…Detailed information on the characteristics of the study subject, as well as the procedure and methodology for conducting studies are given in Article [10]. Also, [10] provides information about the scratch simulation. Figures 1-4 show the considered variants of scratch dislocation for calculations.…”

Cathodic protection of main oil pipeline

“…As is known, the corrosion protection of an oil pipeline depends largely on the value of the polarization potential of its surface, which, in turn, determines the kinetics of electrode reactions in soil electrolytes [1][2][3][4][5][6][7][8][9][10][11][12]. The cathodic protection method ensures a drastic decrease in the corrosion rate of the pipeline metal due to turning the protected surface into a non-destructive cathode.…”