水轮机抗泥沙磨损技术分析  

Analysis of anti- send- abrasion technology for hydraulic turbine

作　　者：张广[1] 魏显著[1] 刘万江[1] 

机构地区：[1]哈尔滨大电机研究所水力发电设备国家重点试验室,哈尔滨150040

出　　处：《黑龙江电力》2015年第1期61-64,共4页Heilongjiang Electric Power

摘　　要：为了解决水电站水轮机泥沙磨损的问题,笔者根据国内外科研人员在水轮机抗泥沙磨损技术研究成果,分析了影响水轮机泥沙磨损的因素,提出了在水轮机抗泥沙磨蚀的设计制造,以及表面防护技术方面采取的措施,即水轮机选型、水力设计、结构设计和加工制造,以及焊条堆焊技术、环氧金刚砂涂层技术、聚氨酯涂层技术和高速燃氧碳化钨涂层技术。实践表明,水轮机泥沙磨损同泥沙的含量、泥沙颗粒属性、水轮机材料、水流的速度及流态等因素有关。水轮机设计时应选用较低的比转速和水流速度,并根据水轮机机型及水头范围选择相应的防护涂层技术。In order to solve send abrasion in hydraulic turbine, the author analyzes the reasons for abrasion accord- ing to the research result of anti - send - abrasion technology for hydraulic turbine from the researchers both in Chi- na and abroad, and propses the designing and manufacturing and measurs to protect the surface, which are the se- lection, hydraulic design, structural optimization and processing of hydraulic turbine, and surfacing electrode, ep- oxy resin coating, polyurethane coating and high -speed oxygen- combustion tungsten carbide coating. The prac- tice shows that the factors influencing send abrasion in hydraulic turbine is sendiment content, properties, marteri- als of hydraulic turbine, water flow and condition. When design hydraulic turbine, relatively low specific speed and water flow should be selected, with protection coating selected by the turbine type and head range.

关 键 词：水轮机 泥沙磨损 设计制造 抗磨涂层 

分 类 号：TV738[水利工程—水利水电工程]