Research and Application of Energy-Saving Control of Coal Mine Pressure Fan
In response to the problem that a certain coal mine not only wastes a large amount of heat energy and causes environmental pollution during production,but also requires a large amount of heating,an energy-saving transformation design is carried out for the compressed air unit to recover and utilize heat energy.One screw type compressed air fan is replaced with a centrifugal type compressed air fan,and the working mode is changed from four screw type compressed air fans in operation,two standby to one centrifugal type compressed air fan in operation,and five screw type compressed air fans in standby.By analyzing the feasibility of heat recovery for compressed air fans,it is proven that the scheme is feasible,and the heat recovery efficiency is calculated and analyzed.Then,two heat exchange methods are used to design heat recovery and heat utilization systems respectively.The results show that the heat energy recovered by the energy-saving renovation system can meet the bathing water demand of 3 000 people,and the operation process can save 49.8%of energy consumption.
万方数据
维普
