分布式变频调节系统的改造效益评估——以北京市昌平区北环供热厂外网改造为例

Transformation Benefit Evaluation of Distributed Variable-frequency Regulating System:Taking External Network Transformation of North-ring Heat Supply Factory in Changping District of Beijing as An Example

介绍"昌平区北环供热厂外网改造项目——分布式变频调节系统"的主要情况。通过对该分布式变频调节系统运行、改造的情况调查和可靠性、经济性研究分析,对昌平区北环供热厂分布式变频调节系统的状况做出了全面的评价,从而得出在供热外网中,采用分布式变频系统具有很强的经济性,值得推广应用。同时对昌平区北环供热厂现有二级水泵选用提出了改造建议。

The main circumstances on distributed variable-frequency regulating system of external network transformation of North-ring heat supply factory in Changping district of Beijing were introduced. By investigating on operation and transformation of the distributed variable-frequeney regulating system in Changping district and analyzing reliability and economy, the overall evaluation for it was carried out. The result shows that distributed variable-frequency regulating system in heat supply external network has siguificant economy which is worth of popularization and application. Meanwhile, transformation suggestion for existing secondary pump selection in North-ring heat supply factory in Changping district were put forward.