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

T.G Gorbunova,E.V Izmailova,V.V Serov,T.O Politova,Sh.G Ziganshin,E.V Shamsutdinov,V.V Sergeev,Yu.V Vankov

doi:10.1051/e3sconf/201912405083

T.G Gorbunova, E.V Izmailova + Show 6 more

Open Access

https://doi.org/10.1051/e3sconf/201912405083

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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.

Highlights

Almost all of the heat networks of Russian Federation were created during the period of mass housing construction of the 60-80s of the XX century
Prediction of damage and assessment of the reliability of heating networks based on statistical methods
There are several basic approaches that allow in practice to assess the effectiveness of the implementation of diagnostic methods

Summary

Introduction

Almost all of the heat networks of Russian Federation were created during the period of mass housing construction of the 60-80s of the XX century. Private construction companies almost did not build new heat networks. New residential buildings built after 1991 are mainly connected to old heat networks. The management of heat supply enterprises, trying to prevent an increase in accident rate, tried to maintain the volume of pipeline reconstruction, reducing quality requirements and cheapening construction works. The restored networks had a very low resource and in 5-7 years required a new relocation. The number of accidents began to double every 2 years. On average they have increased several times over the past 6 years

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Results

Conclusion