摘要
汽轮发电机组联轴器鼓风挡板的作用是防止联轴器联接螺栓在转子高速运转时产生鼓风甩油。依据联轴器及其鼓风挡板的结构和工作原理,分析某汽轮发电机组鼓风挡板联接螺栓断裂、扭曲变形的原因,指出联轴器鼓风挡板在安装过程中应注意事项,提出鼓风挡板设计制造的改进措施。
The role of the blast baffle of the coupling for turbine generator unit is to prevent blast and shed oil generated by the coupling bolts,when the rotor is running at high speed. Based on the structure and working principle of the coupling and its blast baffle,the reasons of its occurrence are analyzed in detail combined with the phenomenon of the fracture,torsion and deformation of the coupling bolts of the baffle for a turbine generator unit. Furthermore,we put forward the problems which should be paid attention to during the installation of the blast baffle of the coupling. Some improvement measures for the design and manufacture of the blast baffle are proposed.
引文
[1]王家胜,赵杰,甘飞,等.某超临界600MW机组汽轮机振动异常原因分析及处理[J].热力发电,2015,44(10):116-118.WANG Jiasheng,ZHAO Jie,Gan Fei,et al. Cause analysis and treatment of steam turbine vibration anomaly of a supercritical600MW unit[J]. Thermal Power Generation,2015,44(10):116-118.
[2]张建新. 600MW机组汽轮机振动故障分析[J].科技创新与应用,2013(33):101-101.ZHANG Jianxin. Vibration Fault Analysis of Steam Turbine of600MW Unit[J]. Technology Innovation and Application,2013(33):101-101.
[3]刘中华.联轴器防鼓风挡板在安装中应注意的问题[J].华电技术,2010,32(2):31-33.LIU Zhonghua. The problem that the coupling anti-blast baffle should pay attention to during installation[J]. Huadian Technology,2010,32(2):31-33.
[4]池永滨,赵慧传,陈志波. 200MW机组联轴器螺栓断裂分析与防止措施[J].黑龙江电力. 1994(1):24-26.CHI Yongbin, ZHAO Huichuan, CHEN Zhibo. Analysis and prevention of bolt breakage of 200MW unit coupling[J].Heilongjiang Electric Power,1994(1):24-26.
[5]李宏强,郑福民.辽化热电厂3号机汽缸螺栓断裂原因分析[J].东北电力技术,2004,25(2):24-28.LI Hongqiang,ZHENG Fumin. Analysis of Causes of Cylinder Bolt Fracture of No. 3 Engine in Liaohua Thermal Power Plant[J]. Journal of Northeast Electric Power,2004,25(2):24-28.
[6]吴细毛,崔晓辉,艾明辉.发电机定子铁芯紧固螺栓疲劳可靠性分析[J].东北电力技术,2004,25(12):10-12.WU Xiumao,CUI Xiaohui,AI Minghui. Fatigue Reliability Analysis of Generator Stator Core Fastening Bolt[J]. Journal of Northeast Electric Power,2004,25(12):10-12.
[7]刘继红,佟才功.汽轮机汽缸法兰螺栓热装卸断裂原因分析[J].东北电力技术,1995(4):54-57.LIU Jihong,YAN Caigong. Analysis of Causes of Thermal Loading and Unloading of Steam Turbine Cylinder Flange Bolts[J]. Northeast Electric Power Technology,1995(4):54-57.
