汽轮机通流部分积盐诊断方法研究  

Study on Diagnostic Method of Fouling on Flow Path of Steam Turbine

作　　者：张德利[1] ZHANG De-li(North China Electric Power Research Institute,Beijing 100045,China)

机构地区：[1]华北电力科学研究院有限责任公司,北京100045

出　　处：《汽轮机技术》2022年第3期209-212,216,共5页Turbine Technology

摘　　要：汽轮机通流部分积盐是目前汽轮机通流部分性能诊断的重要研究方向之一。通流部分的积盐严重威胁着机组的安全性经济运行。为研究汽轮机通流部分积盐的关键影响参数及其诊断方法,首先对现有的诊断方法进行了研究,提出了基于压比的趋势分析法并加以验证,然后基于机组典型工况设计值进行精度分析,结果表明,基于压比的趋势分析法具有较高的计算精度和易实现工程应用基础。最后通过对某600MW机组的实例分析,进一步验证了方法的可行性。Salt accumulation in the flow path of steam turbine is one of the important research directions of performance diagnosis of the flow path of steam turbine.Salt accumulation in the flow path seriously threatens the safety and economic operation of the unit.In order to study the key influencing parameters and diagnosis methods of salt accumulation in the flow path of steam turbine,this paper first studies the existing diagnosis methods,proposes and verifies the trend analysis method based on pressure ratio,and then analyzes the accuracy based on the design value of typical working conditions of the unit.The results show that,the trend analysis method based on pressure ratio has high calculation accuracy and easy to realize engineering application.Finally,the feasibility of the method is further verified by an example of a 600MW unit.

关 键 词：汽轮机 通流部分 积盐 特征通流面积 经验模态分解 压比趋势 

分 类 号：TM611.31[电气工程—电力系统及自动化]