摘要
循环流化床燃烧技术因其燃料适用范围广、燃烧率高而被广泛应用于电力、石油、化工及垃圾处理等领域,但循环流化床锅炉存在严重的磨损和高温腐蚀问题,锅炉受热部件易失效而导致运行过程不稳定甚至停炉,降低了锅炉使用寿命。为提高锅炉受热表面耐磨耐蚀性能,近年来有多种表面改性技术应用于锅炉受热表面防护,调研这些表面防护技术,阐述了超音速火焰喷涂、高速电弧喷涂、大气等离子喷涂、激光熔覆和堆焊技术的工艺原理及特点,对比了不同改性技术的优缺点。最后,对锅炉表面防护技术的应用前景和未来发展趋势进行展望,以期为优化锅炉表面防护技术提供指导。
CFB combustion technology is widely used in power,petroleum,chemical industry and waste treatment because of its wide range of fuel application and high combustion rate.However,CFB boilers always have serious high-temperature wear and corrosion problems,and the heated parts of boilers are often prone to failure,leading to unstable operation process and even boiler shutdown,which greatly reduces the service life of boilers.In order to improve the wear resistance and corrosion resistance of boiler surface,a variety of surface modification technologies have been applied to protect the heated surface of boiler in recent years.The process principle and characteristics of these surface protection technologies were described,including supersonic flame spraying,high-speed arc spraying,atmospheric plasma spraying,laser cladding and surfacing welding.Finally,the application prospect and future development trend of boiler surface protection technology were prospected,in order to provide some help for optimizing boiler surface protection technology.
作者
杨中彪
蒋生玉
冯亦武
张盼盼
张群莉
姚建华
YANG Zhongbiao;JIANG Shengyu;FENG Yiwu;ZHANG Panpan;ZHANG Qunli;YAO Jianhua(Tianjin Nangang Power Plant,Huadian International Power Co.,Ltd.,Tianjin 300450,China;College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310023,China;Institute of Laser Advanced Manufacturing,Zhejiang University of Technology,Hangzhou 310014,China;Huadian Electric Power Research Institute Co.,Ltd.,Hangzhou 310030,China)
出处
《洁净煤技术》
CAS
CSCD
北大核心
2024年第S01期24-35,共12页
Clean Coal Technology
基金
浙江省“尖兵”“领雁”研发攻关计划资助项目(2023C01052,2022C01117)
关键词
锅炉
耐磨耐蚀
表面改性技术
火焰喷涂
电弧喷涂
等离子喷涂
激光熔覆
boiler
wear and corrosion resistance
surface modification technology
flame spraying
arc spraying
plasma spraying
laser cladding
