660 MW汽轮发电机组真空泵节能改造
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摘要
随着国家节能减排要求的提高,电力企业迫切需要对能耗高的设备进行改造,以提高机组运行的经济性。江苏华电能源有限公司望亭发电分公司为提高~#4机组真空泵的运行效率,将小功率的3级变频调节罗茨真空泵和液环泵串联,组成一个智能调速机械真空泵组,与原有大型液环泵并列布置。实际运行显示,高效真空泵组可实现智能调速,能维持甚至改善运行中凝汽器的真空度。改造后,机组运行1年可节约电费和燃煤费用共124. 9万元,当年就可收回改造成本,经济效益十分显著。
With the improvement of national energy conservation and emission reduction requirements,power companies urgently need to transform the equipment with high energy consumption to improve the economy. In order to improve the operating efficiency of the vacuum pump in No. 4 unit,Wangting Power Generation Branch of Jiangsu Huadian Energy Company Limited connects the low-power 3-stage variable frequency regulation Roots vacuum pump and the liquid ring pump in series,which forms an intelligent speed-regulating mechanical vacuum pump unit. The liquid ring pumps are arranged side by side. The actual operation shows that the high-efficiency vacuum pump set can realize intelligent speed regulation and can maintain or even improve the vacuum degree of the condenser in operation. After the transformation,the unit can save electricity consumption and coal consumption which are worth 1. 249 million yuan a year in total. In the same year,the transformation cost can be recovered,and the economic benefits are very significant.
With the improvement of national energy conservation and emission reduction requirements,power companies urgently need to transform the equipment with high energy consumption to improve the economy. In order to improve the operating efficiency of the vacuum pump in No. 4 unit,Wangting Power Generation Branch of Jiangsu Huadian Energy Company Limited connects the low-power 3-stage variable frequency regulation Roots vacuum pump and the liquid ring pump in series,which forms an intelligent speed-regulating mechanical vacuum pump unit. The liquid ring pumps are arranged side by side. The actual operation shows that the high-efficiency vacuum pump set can realize intelligent speed regulation and can maintain or even improve the vacuum degree of the condenser in operation. After the transformation,the unit can save electricity consumption and coal consumption which are worth 1. 249 million yuan a year in total. In the same year,the transformation cost can be recovered,and the economic benefits are very significant.
引文
[1]储志刚,褚小东,范昌海.罗茨-水环真空泵组在丙烯酸丁酯装置中的应用[J].上海化工,2012,37(1):24-26.