摘要
为了利用热障涂层技术解决烧嘴端面烧损问题,开展模拟研究对比增加热障涂层前后烧嘴端面金属材料的隔热性,开展热震性实验测试不同涂层材料以及不同喷涂工艺热障涂层的热震性。结果表明,热障涂层可显著降低烧嘴端面温度,1873 K辐射温度条件下可降低45%;采用封孔工艺的铈酸镧(La_(2)Ce_(2)O_(7),LCO)材料具有最佳的热震性,1200℃条件下循环热震仅少量裂纹,未见明显失效现象。
In order to use thermal barrier coatings technology to solve the burning damage problem of the burner end face,simulation studies were carried out to compare the thermal insulation performance of the metal material on the burner end face with or without the thermal barrier coatings,and thermal shock resistance tests were carried out to test thermal shock resistance of thermal barrier coatings with different coating materials and spraying processes.The results showed that the thermal barrier coatings can greatly reduce the temperature of the end face of the burner,temperature of end face can be reduced by 45%under the condition of 1873 K radiation temperature.LCO(La_(2)Ce_(2)O_(7))material with the sealing process had the best thermal shockresistance,and there were only a few cracks andno obvious failure after the cyclic thermal shock at 1200℃.
作者
张镓铄
曾磊赟
匡建平
薛志村
夏支文
唐昭帆
ZHANG Jia-shuo;ZENG Lei-yun;KUANG Jian-ping;XUE Zhi-cun;XIA Zhi-wen;TANG Zhao-fan(Ningxia Shenyao Technology Co.,Ltd.,Ningxia Yinchuan 750200;Shanghai Marine Diesel Engine Research Institute,Shanghai 201108,China)
出处
《广州化工》
CAS
2022年第10期106-110,共5页
GuangZhou Chemical Industry
基金
宁夏回族自治区2017年重点研发计划(沿黄试验区科技创新专项,项目编号:2017BY049)
宁夏回族自治区2018年重点研发计划(重大科技专项,项目编号:2018BCE01004)。
关键词
煤气化炉
烧嘴端面
热障涂层
隔热性
热震性
coal gasifier
end surface of the burner
thermal barrier coatings
thermal insulation performance
thermal shock resistance
