节能是全世界共同关注的热点话题之一,更是我国经济高速发展所面临的严肃课题之一。在我国现有建筑中,暖通能耗约占整个建筑能耗的40%。在全国400多亿平方米的既有建筑中,90%以上是高能耗建筑,节能潜力巨大。为了实施城市供热体制改革,推行按 Energy conservation is one of the hot topics of common concern in the world and one of the serious issues facing China’s rapid economic development. In our country’s existing buildings, HVAC energy consumption accounts for about 40% of the entire building. In more than 40 billion square meters of existing buildings in the country, more than 90% are high-energy-consuming buildings with huge potential for energy saving. In order to implement the reform of urban heating system, push the press