分析了现场高温离心鼓风机性能参数与设计参数差距较大的原因，结合现场测试，排除了管网系统不易查找的多处漏风，使机组投入正常生产运行。 The reasons for the large gap between performance parameters and design parameters of high temperature centrifugal blowers were analyzed. Combined with the field test, many air leaks that were not easily found by the pipe network system were excluded, and the units were put into normal operation.