超临界锅炉省煤器管材磨损量计算方法  

Calculation Methods for Wear Loss of Economizers Tubes inSupercritical Boilers

作　　者：林周勇 连达得 陈景东 张力 李乐天 杨凯镟 Lin Zhouyong;Lian Dade;Chen Jingdong;Zhang Li;Li Letian;Yang Kaixuan(CHN Energy(Quanzhou)Thermal Power Co.,Ltd.,Quanzhou 362804,Fujian Province,China;Shanghai Power Equipment Research Institute Co.,Ltd.,Shanghai 200240,China)

机构地区：[1]国能(泉州)热电有限公司,福建泉州362804 [2]上海发电设备成套设计研究院有限责任公司,上海200240

出　　处：《发电设备》2023年第6期381-385,共5页Power Equipment

基　　金：国能(泉州)热电有限公司科技项目(GNFJ-2022-01)。

摘　　要：使用现有管材磨损量计算模型对某670 MW超临界锅炉省煤器管材的磨损量进行计算时,存在磨损量计算值和实测值之间的误差率较高的情况,采用计算结果修正法和经验参数修正法计算省煤器管材磨损量,并且对比分析2种方法。结果表明:采用经验参数修正法所得的磨损量计算值与实测值之间的平均误差率仅为3.14%,其修正效果优于计算结果修正法,可以为同类超临界锅炉省煤器管材的壁厚监测与状态检修提供参考。When calculating the wear loss of economizer tubes in a 670 MW supercritical boiler based on the existing wear loss calculation model for tubes, there was a high error rate between the calculated and measured wear losses. The wear losses of economizer tubes were respectively calculated with the calculation result correction method and empirical parameter correction method, while comparisons and analyses were conducted on the above two methods. Results show that, when using the empirical parameter correction method, the average error rate between the calculated and measured values of wear loss is only 3.14%, and the correction effect of the empirical parameter correction method is better than that of the calculation result correction method. This may provide a reference for the wall thickness monitoring and condition maintenance of economizer tubes in similar supercritical boilers.

关 键 词：锅炉 省煤器 磨损量 烟气流速系数 

分 类 号：TK223.33[动力工程及工程热物理—动力机械及工程]