煤矿多热源余热利用系统设计与应用

针对煤矿生产中需要供热也会产生大量的低温余热这一问题,基于余热利用技术的原理,设计了空气源热泵+水源热泵+太阳能集热的多热源余热利用系统。通过热泵消耗少量电能将大量不能直接利用的低温热能变为有用的高温热能;通过太阳能集热系统转换技术将光能转换为热能,制备热水进行供应的方式,可实现多热源余热利用。工程应用表明,在煤矿应用时,采用低温废热回收热泵供热、太阳能集热技术可以替代燃煤锅炉,可以实现供热无污染物排放,清洁高效节能的目标。系统运行高效、节能、环保,符合国家的政策要求。

Aiming at the problem that a large amount of low-temperature waste heat is generated when heating is needed in coal production.Based on the principle of waste heat utilization technology,a multi-heat source waste heat utilization system of air source heat pump+water source heat pump+solar heat collection is designed.The heat pump consumes a small amount of electric energy to convert a large amount of low-temperature heat energy that cannot be directly used into useful high-temperature heat energy;the solar heat collection system conversion technology converts light energy into heat energy and prepares hot water for supply,which can realize the utilization of multiple heat sources.Engineering applications show that in coal mine applications,the use of low-temperature waste heat recovery heat pump heating and solar heat collection technology can replace coal-fired boilers,and can achieve the goal of heating without pollutant emissions,clean,high-efficiency and energy-saving.The system operation is efficient,energy-saving and environmentally-friendly,in line with the requirements of the national policy.