轴流压气机防喘振保护是头等重要的问题,它的解决要以准确的特性曲线为基础,而准确的特性曲线只有通过实验的方法取得。文章结合天津铁厂高炉风机试验的实际,详细阐述了如何用实验的方法测得风机特性曲线,根据特性曲线制定出喘振报警线和防喘振放风线。同时,对定转速风机、变转速轴流压气机等不同机型采取不同的防喘振保护系统,并在生产中取得了极好的效果。 Anti-surge protection of axial-flow compressors is of paramount importance, and its solution is based on an accurate characteristic curve, which is obtained only experimentally. Combined with the actuality of the blast furnace fan test in Tianjin Iron Works, this paper elaborates how to measure the fan characteristic curves by experiments and formulates the surge alarm lines and the anti-surge vent lines according to the characteristic curves. At the same time, the fixed speed fan, variable speed axial flow compressor and other different models to take a different anti-surge protection system and achieved excellent results in the production.