METHODS TO REDUCE HEAT LOSSES IN PIPELINES WITH trench laying

Abstract

In the coming years, the development of district heating remains the main direction for providing heat energy to the large settlements and industrial enterprises in the energy sector of large and small cities of Russia. In this regard, there remains an urgent requirement to reduce heat losses during transportation of heat transfer and improve the design quality of systems of heat supply, and use new technical solutions in this field. One of the most time-consuming and costly elements of systems of heating are heat networks. Expenses for construction of heat networks in the cities are about 50% of the initial cost of construction of TTP. However, the long experience of the operation of heat networks of different structures indicates their fragility: the life of the main networks is 16-18 years old, distribution and submain - 6 to 8 years, and many of the pipes, especially hot water pipes is 2-3 years. This is due mainly to the low thermal protection, resulting in poor corrosion resistance of heat pipes. The authors have developed technical solutions that reduce heat losses in pipelines and, as a consequence, reduce the energy consumption of heating systems.