【摘要】 针对目前主要采用阀门调节管路流量而造成能源浪费的问题,提出通过变频调速改变流量的观点。应用流体机械相似定律及电工学原理,阐明变频调速原理。结合中国各地的实际情况,对采用此方法的循环水泵进行经济性分析,得出天气越冷、电价越高的地方,变频调速更具优越性,从而指出变频调速的科学性与经济性。更多还原

【Abstract】 In view of energy waste will be made mainly through regulating valve to change the flow,the point of adopting frequency conversion is put forward to change the flow.The analogical law of fluid machines and principle of electronics are applied to explain the principle of frequency conversion.Combining the actual conditions all over China the economical efficiency analysis is carried out for the circulatory pump which applies the technique.The conclusion is that the colder the weather and the higher the price of electricity,the more obvious the superiority of frequency conversion is.Furthermore,the scientific and economic efficiency of frequency converter-pump can be proved.更多还原