以黑龙江省某电厂余热利用集中供热工程为例,论述该电厂余热在集中供热中的利用方式,并对系统的热平衡性进行详细量化计算,论证系统运行稳定性、节能效益和经济性。在电厂余热利用进行集中供热方向,具有显著的技术和经济优势。“十二五”时期是我国加快转变经济发展方式的攻坚时期,对进一步强化节能减排目标约束机制提出更高要求。建筑节能在我国节能减排工作中处于重要地位,而北方供热能耗占建筑能耗的最大份额,因此供热节能是我国节能工作的重中之重,如何提高 Taking a waste heat utilization central heating project of a power plant in Heilongjiang Province as an example, the utilization of waste heat from the power plant in central heating is discussed. The heat balance of the system is quantified in detail and the system stability, energy efficiency and economy are demonstrated. In the power plant waste heat utilization of central heating direction, with significant technical and economic advantages. The “Twelfth Five-Year Plan” period is a crucial period for our country to speed up the transformation of economic development mode and puts forward higher requirements on further strengthening the restriction system of energy conservation and emission reduction targets. Energy-saving building in China’s energy-saving emission reduction work is in an important position, while the northern heating energy consumption accounted for the largest share of building energy consumption, heating energy conservation is the top priority of our energy-saving work, how to improve