低硬度、强腐蚀性高温水的腐蚀问题是一个较难解决的问题。试验发现在一个由ＨＥＤＰ、Ｚｎ２＋等常用水处理剂组成的复合配方中，加入少量的磷酸醇胺能极大地提高复合药剂的缓蚀性能。磷酸醇胺本身亦有很好的缓蚀性能，且与ＨＥＤＰ、Ｚｎ２＋等常用水处理剂有明显的协同缓蚀作用。作者还介绍了磷酸醇胺的制备方法 The corrosion problem of low hardness and strong corrosive high temperature water is a difficult problem to solve. The experiment found that adding a small amount of phosphoalkanolamine can greatly improve the corrosion inhibition performance of the composite agent in a compound formulation composed of HEDP, Zn2+ and other commonly used water treatment agents. Phosphoethanolamine itself also has good corrosion inhibition performance, and it has significant synergistic corrosion inhibition with commonly used water treatment agents such as HEDP and Zn2+. The author also introduced the preparation method of phosphoalkanolamine