| 基于疲劳原理探究超(超)临界电站锅炉减温器失效模式 |
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| 引用本文： | 马少海,王健,辛林祥,白宁. 基于疲劳原理探究超(超)临界电站锅炉减温器失效模式[J]. 中国特种设备安全, 2021, 0(1): 28-32 |
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| 作者姓名： | 马少海 王健 辛林祥 白宁 |
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| 作者单位： | 中国特种设备检测研究院;天津国投津能发电有限公司 |
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| 摘 要： | 本文总结介绍了常见炉型超(超)临界电站锅炉减温器的布置方式和结构形式,并以上海锅炉厂生产的SG-3005/29.3-M7008型超超临界锅炉再热器微量喷水减温器为例,基于水汽温差作用下产生的热疲劳和蒸汽高速冲刷产生的机械振动疲劳原理,探究总结了喷水减温器的失效模式,并提出了设计、制造安装、运行及检验建议.
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| 关 键 词： | 振动疲劳 热疲劳 超临界 超超临界 减温器 失效模式 |
Study on the Failure Mode of Desuperheater of Supercritical Power and Ultra-supercritical Power Boiler based on Fatigue Principle |
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| Ma Shaohai,Wang Jian,Xin Linxiang,Bai Ning. Study on the Failure Mode of Desuperheater of Supercritical Power and Ultra-supercritical Power Boiler based on Fatigue Principle[J]. , 2021, 0(1): 28-32 |
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| Authors: | Ma Shaohai Wang Jian Xin Linxiang Bai Ning |
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| Affiliation: | (China Special Equipment Inspection and Research Institute,Beijing100029;Tianjin SDIC Jinneng Electric Power Co.,Ltd,Tianjin 300480) |
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| Abstract: | Arrangement and structure of desuperheaters of common supercritical and ultra-supercritical power boilers are summarized and introduced in this paper.Taking reheater micro spray desuperheater of SG-3005/29.3-M7008 type ultra-supercritical boiler produced by Shanghai Boiler Works Ltd as an example,this paper explores and summarizes of the failure mode of spray desuperheater based on the thermal fatigue caused by water vapor temperature difference and the mechanical vibration fatigue caused by high speed steam flow.At last,corresponding suggestions are put forward from the angle of design,manufacture,installation,operation and inspection. |
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| Keywords: | Vibration fatigue Thermal fatigue Supereritical Ultra-supercritical Desuperheater Failure mode |
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