THE PROCESS OF RESTORING THE IMPELLER OF A CENTRIFUGAL PUMP IN A LASER INSTALLATION

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Опубликовано: 19.04.2023 17:39
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Volume 14 (2), April 2023, Pages 166-172

Nazim Ibrahimov1, Aytaj Halykova2

1Professor, “Materials Science and Processing Technologies”, Azerbaijan State University of Petroleum and Industry, Azerbaijan. E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

2Master's degree, “Materials Science and Processing Technologies”, Azerbaijan State University of Petroleum and Industry, Azerbaijan. Email: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.

 ABSTRACT

 One of the widely used pumps in the oil industry is the centrifugal pump. During the long-term operation of the centrifugal pump, many failures are observed. One of the main failed parts is the impeller. As we know, an integral part of the functionality of a centrifugal pump is its impeller. Without an impeller, no centrifugal force can be generated on the incoming fluid. So, without an impeller, a centrifugal pump cannot work at all. For this reason, failure of the pump impeller had to be eliminated in order to prevent the pump from malfunctioning and to ensure the maximum length of uninterrupted operation of the pump. The main causes of impeller failure are the effects of cavitation, corrosion and erosion. Here, the coating (layer) resistant to corrosion and corrosion on the surfaces of the impeller of the centrifugal pump was considered. Specially for this, in the appropriate LD-2000 laser device, abrasives with different compositions were selected and their technological regime was developed. Ni, Cr, Fe, Si, Mo elements were used as abrasives. Knowing the composition and physical-chemical characteristics of each of these elements, an accurate report of the technological regime was conducted.

With this technological regime, it is appropriate to apply a coating (layer) of any thickness to the surface of the working wheels. This process was carried out in the laser center of the Azerbaijan State Oil and Industry University.

Keywords: alloy coating, abrasion, corrosion and corrosion resistance, technological mode, laser device.