The influence of changes in the project on the reliability of heat power systems during construction and installation works

¹ The branch of LLC KER-engineering LLC Tatnipienergoprom
² Kazan Power Engineering University, 420066, 51, Krasnoselskaya st., Kazan, Russia
³ JSC TAIF NK AZS chief power engineer Kazan, Russia

^* Corresponding author: politovatatyana@ya.ru

Abstract

However, during the construction and reconstruction of existing heat networks, cases that lead to unstable operation of newly laid or replaced areas arise. An important task is to minimize the reasons that can cause damage to replaced areas. Factors that negatively affect the reliability include: laying pipelines without design documentation, non-compliance of the regulatory requirements for their laying by installation organizations. The assumptions of design engineers developing the project and installers laying the heating main can lead to negative consequences, including a decrease in the reliability of the facilities functioning. Physical deterioration, coupled with the above factors, leads to a large number of failures of heat networks. Breakthroughs reduce the reliability of the entire heat supply system, worsen the quality of the supplied coolant and lead to an increase in the cost of maintenance of heat networks by operating organizations. The paper considers the influence of changes in the project during the construction and installation works on the reliability of the heat supply system.