我国北方大部分地热资源是以地热水形式存在的低焓能源。在应用于集中供热时与锅炉供热有着本质的区别。前者可认为是恒温、变流量热源,而后者是变热流、可调温的热源。从机理上认识这两种热源的特点对集中供热的设计、调节和控制至关重要。着重对地热间接式供热系统进行了全面的热力分析。 Most geothermal resources in northern China are low-lying energy sources in the form of geothermal water. There is a fundamental difference between boiler heating when applied to central heating. The former can be considered as a constant-temperature, variable-flow heat source, while the latter is a heat source with variable heat flow and temperature. Understanding the characteristics of these two heat sources from the mechanism is crucial for the design, regulation and control of central heating. Focused on geothermal indirect heating system for a comprehensive thermal analysis.