集中供热系统中一补二系统的方式及应用

对集中供热系统的补水定压作了介绍，针对～补二的几种方式从技术及运行等方面进行了阐述，并进一步分析了～补二中可能存在的问题及相应的控制要求，为一补二系统的推广使用奠定了基础。

On ways of water supplement system in central heating system and its application

The paper introduces the water pressurization in the central heating system,illustrates some ways of the system for water in primary network to supplement water in secondary network from the technique and its operation,and analyzes some underlying problems in the supplement and respective controlling requirements,so as to lay the foundation for the application of the system.