Improving the quality of installation of preinsulated pipelines of heat supply systems

Rustem Mukhametrakhimov,Anastasia Panchenko,Tatyana Gorbunova,Albert Galautdinov,D Bazarov

doi:10.1051/e3sconf/202126402068

Abstract

One of the most important directions of Russia's economic and energy strategy is to increase the efficiency in the field of heat supply. One of the options for solving this issue is using preinsulated pipelines, such as steel pipes in polyurethane foam polyethylene insulation. The experience of their application indicates several disadvantages associated with defects in pipes in polyurethane foam insulation and installed pipelines. The studies carried out made it possible to identify the main defects and inconsistencies in the manufacture and installation of preinsulated pipelines and the reasons for their occurrence. Following this, the authors have developed a set of operations and control tools during the installation of pipes in polyurethane foam PE insulation, clarifying the requirements of the input, operational and acceptance types of control, which contribute to improving the quality of the finished product, which was the purpose of this work.

Highlights

Increased energy saving and energy efficiency requirements contribute to the introduction of new materials and technologies into construction practice, which can significantly reduce the consumption of energy and material resources during the operation of permanent and linear construction facilities and improve their quality [1,2,3]
The implementation of the energy strategy for the period up to 2020 cannot be considered satisfactory, since the heat losses of the central heating system have not been reduced by 60%, the production of heat energy has been increased for 34% [4]
The most typical defects and the reasons for their occurrence, which occur during the production of pipes in polyurethane foam PE insulation, are shown in Table 1 and Figure 2

Summary

Introduction

Increased energy saving and energy efficiency requirements contribute to the introduction of new materials and technologies into construction practice, which can significantly reduce the consumption of energy and material resources during the operation of permanent and linear construction facilities and improve their quality [1,2,3]. The implementation of the energy strategy for the period up to 2020 cannot be considered satisfactory, since the heat losses of the central heating system have not been reduced by 60%, the production of heat energy has been increased for 34% [4] This is confirmed by statistics [4], indicating an increase in the depreciation of the centralized heat supply fund from 65% to 70% since 2010 and the need for major repairs or complete replacement of 82% of heating networks. Their actual heat loss is 30% for the present moment. One of the most important areas of economic and energy policy in Russia is to improve efficiency in the field of heat supply

Methods

Results

Conclusion