Research on Solar Heating and Anti freezing Technology for Water Supply Facilities in Severe Cold Regions

¹ Yinshanbeilu National Field Research Station of Desert Steppe Eco-hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
² Institute of Water Resources forpastoral Area Ministry of Water Resources, Hohhot 010020, Inner Mongolia China
³ Inner Mongolia Autonomous Region Institute of Metrology and Testing, Inner Mongolia China
⁴ Horqin Right Wing Front Banner Water Conservancy Bureau, Inner Mongolia China

^* Corresponding author’s email: 1014799348@qq.com

Abstract

This study focuses on the serious winter freezing damage, inconvenient management of coal-fired heating, and high energy consumption and cost of electric heating and antifreeze measures in rural pastoral areas in northern China's severely cold regions. Taking into account the abundant resource advantages of northern light resources, a solar heating and antifreeze system for water supply facilities was designed. During the day, the collector absorbs sunlight and converts it into heat energy. The water in the heat storage tank is circulated through the collector to heat and store energy; When the temperature of the well room is low, heat is released to stabilize the temperature of the well at around 8 °C, achieving solar heating and anti freezing. Through experimental verification, the temperature of solar powered hot water can reach 67.9 °C, and the temperature of the well room can be maintained between 6.1 °C and 10.5 °C. The heating and anti freezing effect of the system is stable, and the solar heating guarantee rate is nearly 75%. The energy-saving effect is significant, greatly reducing the anti freezing operation cost of water supply facilities. At the same time, the system can operate with full process automation and remote monitoring, effectively improving the antifreeze guarantee rate and management efficiency.