【作者】 贺伟；

【导师】 费文平； 张潮；

【作者基本信息】 四川大学 ， 水利工程（专业学位）， 2020， 硕士

【摘要】 自20世纪90年代,我国水电行业建设进入了快速发展阶段,水电站建设如火如荼,经过近几十年的建设,大批水电站投入运行。截至2017年底,全国水电机组装机容量已突破2.1亿千瓦。随着水电厂运行年限增加、设备老化及水电技术装备水平提升等,越来越多水电厂进入了设备检修阶段,检修费用规模呈不断扩大趋势,水电站水轮发电机组设备检修市场必将迎来发展的黄金时期,研究编制水轮发电机组企业检修定额具有市场应用价值和实践意义。截至2019年底,长江电力拥有58台700MW级巨型水轮发电机组,占全球同类型机组比重超58%,且预计至2022年底,长江电力拥有或代管的700MW级及以上巨型水轮发电机组将达86台。长江电力公司需要制定企业检修定额来提高生产检修效率、提升成本控制能力,最终实现水电行业引领者的目标。本文通过研究700MW水轮发电机组C、D级检修定额体系,确定了水轮发电机组C、D级检修检修定额子目清单,形成了水轮发电机组C、D级检修消耗量定额、费用定额成果。主要研究内容如下:(1)基于EBS结构分解原理,将单台水轮发电机组设备系统按照不同的专业技术分解为6个设备单元,将6个设备单元按照不同的功能分解为54个设备部件。基于WBS结构分解原理,将水轮发电机组检修工程按照不同的检修工种分解为机械设备检修工程、电气一次设备检修工程、电气二次设备检修工程等3类。(2)基于德尔菲法,研究确定了117项700MW水轮发电机组C级检修定额子目清单、78项700MW水轮发电机组D级检修定额子目清单。检修定额子目清单按照实现水轮发电机组C、D级检修体系完备性的原则,建立了完整编码体系,检修对象、检修级别明确,检修内容完整。(3)运用蒙特卡洛模拟技术研究检修工程消耗量定额。研究分析了蒙特卡洛模拟技术的理论基础与基本原理,确定了蒙特卡洛模拟技术编制消耗量定额的一般步骤,并用实例借助Crystal ball软件运用蒙特卡洛模拟技术编制消耗量定额,证明了蒙特卡洛模拟技术的可行性。(4)基于“量价分离”的工程计价方法,分别研究了TG电站人工基础单价、材料采购保管费率、检修工器具使用费率,按照分级汇总的计算程序,形成了水轮发电机组C、D级检修费用定额标准。(5)基于定额的“指导性”特性,研究提出了运用水轮发电机组C、D级检修消耗量及费用定额标准指导检修工作、提升检修生产效率、控制成本费用的方法。更多还原

【Abstract】 Since the 1990 s,China’s hydropower industry has entered a stage of rapid development.Hydropower stations are in full swing.After decades of construction,a large number of hydropower stations have been put into operation.By the end of2017,the installed capacity of water motor in China has exceeded 210 million kilowatts.With the increase of operation life of hydropower plants,equipment aging and the improvement of hydropower technology and equipment level,more and more hydropower plants have entered the stage of equipment maintenance,and the scale of maintenance costs is expanding.The equipment maintenance market of hydropower station will usher in a golden period of development.It is of market application value and practical significance to study and compile the maintenance quota of water turbine generator units 。By the end of 2019,Changjiang Power has58 700 MW giant hydro generating units,accounting for more than 58% of the world’s similar units.It is estimated that by the end of 2022,the number of 700 MW and above giant hydro generating units owned or managed by Changjiang Power will reach 86.Changjiang Power Company needs to formulate enterprise maintenance quota to improve the efficiency of production and maintenance,enhance the cost control ability,and finally achieve the goal of leading the hydropower industry.This paper studies the C and D level maintenance quota system of 700 MW hydro generator unit,determines the sub item list of C and D level maintenance quota of hydro generator unit,and forms the results of C and D level maintenance consumption quota and cost quota of hydro generator unit.The main research contents are as follows(1)Based on the principle of EBS structure decomposition,the equipment system of a single hydro generator unit is divided into six equipment units according to different professional technologies,and the six equipment units are divided into 54 equipment components according to different functions.Based on the principle of WBS structure decomposition,the maintenance engineering of hydraulic turbine generator set is divided into mechanical equipment maintenance engineering,electrical primary equipment maintenance engineering and electrical secondary equipment maintenance engineering according to different maintenance types.(2)Based on Delphi method,117 items of C-level maintenance quota sub item list and 78 items of d-level maintenance quota sub item list of 700 MW hydro generator units are determined.According to the principle of achieving the completeness of C and D level maintenance system of hydro generator units,the sub item list of maintenance quota establishes a complete coding system,with clear maintenance objects and levels and complete maintenance contents.(3)Monte Carlo simulation technology is used to study the consumption quota of maintenance engineering.This paper studies and analyzes the theoretical basis and basic principle of Monte Carlo simulation technology,determines the general steps of preparing consumption quota by Monte Carlo simulation technology,and uses the crystal ball software to prepare consumption quota by using Monte Carlo simulation technology,which proves the feasibility of Monte Carlo simulation technology.(4)Based on the engineering pricing method of "separation of quantity and price",the basic unit price of labor,the rate of material purchase and storage,and the rate of using maintenance tools and instruments of TG power station are studied respectively.According to the calculation procedure of hierarchical summary,the C and D level maintenance cost quota standards of hydro generator units are formed.(5)Based on the "instructive" characteristics of the quota,this paper studies and puts forward the method of using the C and D level maintenance consumption and cost quota standards of hydro generator units to guide the maintenance work,improve the maintenance production efficiency and control the cost.更多还原