Analysis of the efficiency of thermal insulation of high-pressure hoses of the drilling rig URB-2A2 based on mathematical modeling

We consider the problem of freezing the hydraulic system during the operation of equipment in the harsh conditions of the North-East and the Arctic of the Russian Federation. The main reason for the failure of equipment in winter is the damage of high-pressure hoses due to the loss of elastic properties of the rubber components caused by low ambient temperatures. To solve this problem, we propose a way to improve the drilling rig URB-2A2 by insulating its hydraulic system with a thermal insulation material based on mineral wool. To confirm the effectiveness of the proposed approach, we performed mathematical modeling of thermal processes occurring in the hydraulic system. We compared the rate of heat loss of the working fluid in high-pressure hoses without and with thermal insulation. The finite element method is used for numerical solution of differential equations. The software implementation was carried out on the FEniCS computing package. The results of mathematical modeling prove that thermal insulation of hydraulic equipment is an effective way to combat freezing of the hydraulic system of equipment. Our next step is to conduct full-scale tests of the proposed method of solving the problem on the basis of the company “Arctic-Bur” LLC, on self-propelled drilling rigs URB-2A2 and URB-2D3.

Tatarinov D. M., Egorov I. A., Kolesov A. E. Analysis of the efficiency of thermal insulation of high-pressure hoses of the drilling rig URB-2A2 based on mathematical modeling. MIAB. Mining Inf. Anal. Bull. 2022;(10-2):88—94. [In Russ]. DOI: 10.25018/0236_1493_2022_102_0_88.

Tatarinov D.M.¹, senior lecturer, e-mail: dm.tatarinov@s-vfu.ru, ORCID ID: 0000−0001−5292−5572;
Egorov I. A.¹, senior lecturer, e-mail: ia.egorov@s-vfu.ru, ORCID ID: 0000−0002−1748−7308;
Kolesov A. E.¹, Cand. Sci. (Eng.), docent, e-mail: ae.kolesov@s-vfu.ru, ORCID ID: 0000−0001−9969−1195;
¹ M. K. Ammosov North-Eastern Federal University, Yakutsk, Russia.

I. A. Egorov, e-mail: ia.egorov@s-vfu.ru.

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