Instrumental inspection of pressure pipelines of the Amuzang-2 pumping station

Abstract

This article discusses the main results of the field studies conducted to assess the technical condition of the pressure pipelines of the Amuzang-2 pumping station. The research aims to check the stress-strain state of the pipeline material, which occurs during long-term operation under conditions of corrosive and abrasive wear of the shell. The research objectives were as follows: measuring the thickness of the shell of pressure pipelines of the pumping station; verification calculation of the strength of pumping station pipelines. During the research, the method of carrying out full-scale measurements using an ultrasonic device to determine the thickness of the pipeline shell and the method of calculating the stress-strain state of the pipeline material that occurs during long-term operation under conditions of corrosive and abrasive wear of the shell were used. The verification calculation was carried out for the strength of the shell material and the stability of the shape of its section: from the action of external pressure (vacuum in the pipeline), buckling, like a rod, under the action of internal pressure. According to the studies carried out, the pipelines can withstand the maximum vacuum, and the static buckling strength of the pipelines is ensured.