Analyses the common problems existed in present pressurization methods. Based on experiences in practice, puts forwards two improved modes, and presents a qualitative analysis of system pressure distribution (pressure diagram).

• 摘要分析了目前常压热水锅炉供暖系统定压方式存在的一些问题。结合实践提出了两种新的定压方式，并对其压力分布（水压图）进行了定性分析。