介绍了高层建筑无水箱直连供暖系统的两个工程应用实例，并讨论了在旧区改造和新建工程设计时应注意的散热器Ｋ值、设加压泵增压对邻近用户的影响、氧腐蚀等问题。 Introduced two examples of engineering application of high-rise buildings without tank direct heating system, and discussed the value of heat sink K, which should be paid attention to in the reconstruction of old districts and new projects, the effect of pressurizing pump boosting on neighboring users, and oxygen. Corrosion and other issues.