基于全生命周期的水轮机导水机构改造费用计算方法与应用  

Calculation Method and Application of the Refurbishment of Distributor Mechanism in a Hydropower Plant Based on a Full Life-cycle Analysis

作　　者：胡雄峰 刘峰 郑应霞 黄靖乾 HU Xiong-feng;LIU Feng;ZHENG Ying-xia;HUANG Jing-qian(PowerChina Huadong Engineering Corporation Limited,Hangzhou 311122,China;Zhejiang Energy Beihai Hydropower Co.,Ltd,Hangzhou 310014,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,杭州311122 [2]浙江浙能北海水力发电有限公司,杭州310014

出　　处：《中国农村水利水电》2021年第2期166-169,共4页China Rural Water and Hydropower

摘　　要：国内一些老电站在设备改造方案决策过程中,往往偏重眼前利益而忽视设备全生命周期内的改造效益,从而导致改造效果差、重复改造等问题。以国内某水电站4号机组导水机构改造为例,从安全性、能效成本及政策适应性等方面分析了改造的必要性;此外,针对整体更换及大修两个比选方案,拟定了比选边界条件;在整个生命周期中,从一次性投入、运行成本、检修成本、故障成本及退役处置成本等方面进行了费用分析与计算,并将相关成本费用折算至费用净现值后,最终提出了最优的改造方案。In the decision-making process of equipment refurbishment,the owner of some hydropower plant often focuses on present profit and ignores the benefits of the full life cycle,and finally results in bad effort or redundant refurbishment.By taking the refurbishment of No.4 Unit distributor mechanism in a Hydropower Plant for example,the necessity of the refurbishment is analyzed from the perspectives of safety,energy efficiency cost,and policy adaptability.Besides,boundary conditions are assumed for the two alternative schemes which are equipment replacement or overhaul.Disposable investment,operation costs,maintenance costs,fault costs and decommissioning disposal costs are analyzed throughout the full life-cycle,and related costs are converted into NPV(Net Present Value).Finally,the optimal refurbishment plan is proposed.

关 键 词：水电站 全生命周期 水轮机 改造 导水机构 净现值 

分 类 号：TV734[水利工程—水利水电工程]