流化床埋管的冷态冲击磨损实验研究  

THE EXPERIMENTAL STUDY OF LOW VELOCITY IMPACT EROSION IN FLUIDIZED BEDS

作　　者：周玉铭[1] 祝京旭[1] 

机构地区：[1]西安交通大学,加拿大西安大略大学

出　　处：《西安交通大学学报》1995年第10期42-47,54,共7页Journal of Xi'an Jiaotong University

摘　　要：讨论了自由降落法对黄铜、碳钢、不锈钢等１１种材料试样的冷态冲击磨损实验结果，颗粒对试样冲击速度控制在２．２～５．０ｍ／ｓ范围内，大致与实际流化床内固体颗粒对埋管的冲击速度相当，并对试样磨损率与颗粒冲击速度、角度、球形度及平均直径进行了回归，建立了低速冲击磨损经验公式，利用电子显微镜对被磨损试样表面进行了观察，探讨了低速度冲击磨损机理。Particles were dropped onto taget specimens made of 11 different materials,The impactvelocity were in the range of 2.2～5.0m/s, Erosion rates were correlated as a function ofimpact velocity,angle and particle properties, According to the analysis of micrographiestaken by scanning electron microscope, the mechanism of low velocity impact erosion ontubes in fluidized beds was discussed。

关 键 词：磨损 流态化炉 强度 流化床 埋管 锅炉 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]