In order to improve the bad condition of circulating cooling water systems such as low efficiency and high energy waste due to incorrect pump selection, unreasonable working condition regulation, unscientific operating management and hard energy consumption evaluation. A chemical circulating water system was taken for object with the procedures as spot investigation on the parameters of equipment installation and the working conditions of the pump station, compared it with the working condition under variable frequency speed regulation and found out the energy saving potential then the energy consumption and evaluation of the whole system was finished. A water supply strategy on energy-saving operation of the circulating water system was established based on the pump affinity low and was combined with components and the whole system. The strategy can meet the process demand and implement the constant pressure water supply at the most adverse point. A method of energy consumption evaluation based on the pump performance curves, motor load curves and data collected was also summarized. After the chemical circulating water system was reconstructed, the annual electric power consumption was reduced from 2.1×104 kWh to 1.4×104kWh, the power-saving proportion was nearly 33% according to the result of energy consumption monitoring.
. Energy Saving Research And Application of Circulating Cooling Water Systems[J]. Journal of Drainage and Irrigation Machinery Engin, 0, (): 6-.
宋晓辉，王兴武等循环水系统的优化设计[J] 中国给水排水,2004 n12:67～69
Song Xiaohui，Wang Xingwu,etc. Optimization Design of Circulating Water System [J] CHINAWATER & WASTEWATER,2004 n12:67～69
丁学俊 冯慧雯等 循环水系统的经济运行问题的分析[J] 电站系统工程，1999:16～18
Ding Xuejun,Feng Huiwen,etc.The analysis of economic operation of circulating systems [J]Power System Engineering,1999:16～18
干浙民. 恒压变流量供水系统中值得研讨的几个问题[J]. 排灌机械，1997(1):16~19
Yu Zhemin,Some valuable questions of constant pressure and variable flow water supplysystems[ J ]. Drainage and Irrigation Machinery, 1997(1):16~19.
Williams A A. The turbine performance of centrifugal pumps : a comparison ofprediction methods [ J ]. Proceedings of the Institution of Mechanical Engineer s, PartA: Journalof power and energy ( S0957 - 6509) , 1994,208 (1) : 59 - 66 .
Pelli T,Hitz H U，Energy indicators and savings in water supply[J]，AmericanWater Works Association，2000,92(6):55～62
任力，王光辉，花文胜等. 水泵现场测试技术探讨[J]. 供水技术，2008，2(3)：34~36
Renli,Wang Guanghui,Hua Wensheng,etc.Discussion on the on-site testing of pumps [J]. WaterTechnology,2008,2(3):34~36
Shi Weidong,Zhang Desheng,Lang Tao, etc. Development of pump performance test systembased on LabVIEW [ J ]. Drainage and Irrigation Machinery, 2007, 25 (3) : 38~41 . ( inChinese)
王新坤.轻小型喷灌机组能好计算与评价方法 [J]. 排灌机械，2010(3)：247~250Wang Xinkun. Energy consumption calculation and evaluation methods for light and small unitsprinkler system [ J ]. Drainage and Irrigation Machinery, 2010 (3):247~250 . ( in Chinese)
Liu Chao,Economic running of pump stations [M],Beijing：Hydraulic and Hydropowerpublishing house,1995
Nourbakhsh A，Jaumotte A,Hirsch C，et al，Turbo pumps and Pumping SystemsM]，New York:Spring Berlin Heidelberg，2007:17～30
Walski T M,Realizing energy savings in water system operation[J],ASCE Conf，Water Resources Planning and Management，1989:441～444