大型核电汽轮发电机磁屏蔽用厚硅钢板的应用特性研究  

Research on Application Characteristics of Thick Silicon Steel Plate for Magnetic Shielding in Large Nuclear Power Turbine Generator

作　　者：许佳丽 霍岩[1] 吴双辉 XU Jiali;HUO Yan;WU Shuanghui(Harbin Electric Machinery Company Limited,Harbin 150040,China)

机构地区：[1]哈尔滨电机厂有限责任公司,哈尔滨150040

出　　处：《大电机技术》2024年第3期45-50,共6页Large Electric Machine and Hydraulic Turbine

基　　金：黑龙江省“百千万”工程科技重大专项华龙一号核电汽轮机组和关键设备研制项目资助(2020ZX01A01)。

摘　　要：磁屏蔽压板是大型核电汽轮发电机的重要部件,直接影响到机组的发电效率及运行稳定性,同时对于保障机组安全可靠运行具有重要的意义。厚硅钢板作为磁屏蔽压板的原料,要求其在具有优异电磁性能的同时具备一定的强度。然而磁屏蔽用硅钢板厚度大、硅含量高、轧制易开裂的特点导致其生产难度较大,此前一直由国外进口,未能实现国内生产。本文介绍了核电磁屏蔽用厚硅钢板的国产化研究,主要包括成分设计、工艺路线制定与优化以及应用特性研究。国产厚硅钢板与进口厚硅钢板的一系列对比表明,国产厚硅钢板能够满足大型核电汽轮发电机的使用要求,并在化学成分均匀性以及电磁性能的表现上均优于进口钢板。Magnetic shield platen is an important part of large nuclear power turbine generator,which can directly affect the power generation efficiency and operation stability.It is also of great significance to ensure the safe and reliable operation of the unit.Thick silicon steel plate is used as raw material of magnetic shield platen,it is required that the silicon steel plate has excellent electromagnetic properties while having a certain strength.However,the silicon steel plate used for magnetic shielding has the features of large thickness,high silicon content and easy cracking during rolling,which makes the production difficult.Previously,the thick silicon steel plate has been imported from abroad and failed to achieve domestic production.This paper introduces the research on localization of thick silicon steel plate for magnetic shielding in nuclear power,including component design,exploration and optimization of manufacturing process,as well as application characteristics.A series of comparison between domestic thick silicon steel plate and imported thick silicon steel plate shows that the domestic thick silicon steel plate can meet the requirements of the large nuclear power turbine generator.And the performance of chemical composition uniformity and electromagnetic properties of the domestic are superior to those of the imported.

关 键 词：磁屏蔽 硅钢板 核电汽轮发电机 应用特性 

分 类 号：TM311[电气工程—电机]