在北方地区集中供热工程的设计过程中,采暖热指标是计算总热负荷、确定热电合供机组能力的主要依据之一。本文介绍了一些集中供热工程的热指标取用状况,并做了分析。从讨论热电合供热组的热经济性随供热量变化的特点,指出采暖热指标的合理取值是当前发展我国热电合产集中供热时应着重注意的问题。 In the design process of district heating projects in the northern region, the heating heat index is one of the main basis for calculating the total heat load and determining the capacity of the combined heat and power unit. This article introduced the status of the use of thermal indicators for some central heating projects and analyzed them. From the discussion of the characteristics of thermal economy with the change of heat supply in the thermal power unit, it is pointed out that the reasonable value of heating heat index should be paid attention to in the current development of China's HEC.