地源热泵系统在北京大兴国际机场的应用

Application of ground-source heat pump systems to Beijing Daxing International Airport

为了实现北京大兴国际机场可再生能源利用率不低于10%的建设目标,在机场工作区,围绕蓄滞洪区开展了地源热泵系统的建设,该系统设置了2座集中能源站,浅层换热孔10680个,总供能面积257万m^(2)。该项目充分利用浅层地热能,耦合天然气、电力等常规能源,结合烟气余热回收、冰蓄冷、大温差等多项节能技术,在高效性、安全性、节能性、环保性和经济性上实现了可再生能源和常规能源的互补。

In order to achieve the construction target of Beijing Daxing International Airport that the utilization rate of renewable energy is not less than 10%,the construction of a ground-source heat pump system is carried out around the flood storage and detention area of the airport.The system sets up two centralized energy stations and 10680 shallow heat exchange holes to supply energy for the area of 2.57 million square meters.The project makes full use of shallow geothermal energy,coupled with conventional energy such as natural gas and electricity,combined with a number of energy-saving technologies such as flue gas waste heat recovery,ice cool storage,large temperature difference and so on.In terms of efficiency,safety,energy saving,environmental protection and economy,the renewable energy and conventional energy are complementary to each other.