大功率风机水泵变频调速节能改造的设计及经济性分析

High power fan and water pump frequency conversion energy saving design and economic analysis

工矿企业200KW以上的大功率电动机一般都采用6kV或10kV电压供电,在变频调速节能改造设计中,有多种方案进行选择。本文根据实例阐述了不同功率等级的变频调速节能改造实施方案,并给出了大功率风机水泵变频调速技术方案经济性评价和比较的动态分析法,对方案的经济性进行全面的分析比较和评价,以保证方案在技术上的先进性和经济上的合理性。只有那些技术上先进,经济上合理的方案才能在实际中得到应用和推广。

Industrial and mining enterprises of more than 200KW high power motors typically use the 6KV or 10KV voltage supply, in the variable frequency speed regulation energy saving design, there are a variety of program options. Based on the exam- pies discussed the different levels of power frequency variable speed regulation and energy-saving reform project, and given the power of fan and water pump frequency conversion technology scheme economic evaluation and comparison of the dynamic analy- sis method, on the economic programme to conduct a comprehensive analysis and comparison and evaluation, to ensure that the pro- gram is technically advanced and economically reasonable. Only those who are technologically advanced, economically rational scheme can be applied in practice and promotion.