200MW汽轮机机械超速危急遮断系统改造的可行性研究  

Study and Realization on Rebuilding of Mechanical Overspeed Emergency System of 200MW Steam Turbine

作　　者：陈晓珊[1] 张军[2] 张本贤 班丽云 

机构地区：[1]东北电力学院能源与机械工程学院,吉林吉林132012 [2]佳木斯发电厂,黑龙江佳木斯154000 [3]东北电网大连培训中心,大连116021 [4]大连市开发区热电厂,大连116600

出　　处：《东北电力学院学报》2005年第6期60-63,共4页Journal of Northeast China Institute of Electric Power Engineering

摘　　要：目前,国产200MW汽轮机调节系统改为数字电液调节系统时,大部分机组的超速保护仍然采用原来的机械超速危急遮断系统,使汽轮机保护系统原有的缺陷未得到彻底的改进。针对机械超速保护系统存在的不足,提出采用电子超速保护装置代替原超速保护装置,并对改造方案及有关设备的选择进行了分析,取得了良好的效果。At present, many governing system of 200MW Steam turbine made in China is replaced with DEH. But the mechanical overspeed protective system is adopted yet in most steam turbine. So the limitation of the former is not be improved. In this paper, aimed at the limitation of put forwarded mechanical over- speed protective system, electronic overspeed protective system is instead to the mechanical overspeed protection. The rebuilding project and selecting equipment are analyzed, and the favorable effect is taken.

关 键 词：汽轮机 调节系统 超速保护系统 

分 类 号：TK264.21[动力工程及工程热物理—动力机械及工程]