Abstract:
In order to improve the utilization efficiency of coal bed methane thermal storage and oxidation heat energy and achieve the best deployment of heat energy, a simulation study was carried out on the heat dispatch under different temperatures and different time periods. The control effect was verified in Yangpoyan low concentration coal bed methane thermal storage and oxidation utilization project in No.1 Coal Mine of Yangquan Coal Mine. The simulation results show that:in the coal bed methane thermal storage and oxidation utilization system, the thermal energy utilization of refrigeration units increases with the increase of temperature in summer, while in winter, the energy efficiency of shaft heating and building heating decreases with the increase of temperature.The utilization of coal mine bath heat energy presents a sudden change during the shift change period. The optimal matching of heat energy utilization points can be achieved by adjusting the high temperature flue gas intake volume of each thermal energy utilization equipment. During the actual operation of the coal bed methane thermal storage oxidation utilization project, the thermal control results guided by the simulation research show that when the ambient temperature changes, the temperature of the thermal medium at the thermal output side keeps stable, which effectively reduces the energy waste.