变频技术在曝气风机节能改造中的应用研究摘要:污水处理是现代城市不可缺少的部分,往污水好氧池加入氧气,加压风机是不可或缺的设备之一,由于风机的容量必须按照最恶劣的天气设计,而实际运行时往往满负载运行的情况不到全年时间的20%,其电能消耗非常大。在传统污泥处理工艺中,风机的电耗占到整个处理工艺能耗的40%以上,所以对曝气风机节能改造的意义重大。关键词:plc ;变频器;节能改造abstract: the sewage treatment is an indispensable part of modern city, to sewage aerobic pool adding oxygen, pressurization fan is an indispensable equipment, due to the fan capacity must be in accordance with the most severe weather is designed, and the actual operation is often full load situation arou