Based on study of sources and features of steam exciting forces on blades in steam turbine,the mathematic model used for calculating steam exciting forces caused by state blades trailing wake are presented,and a software based on Matlab used for calculating exciting forces is developed.
在研究汽轮机叶片气流激振力的来源与性质的基础上,建立了静叶尾迹流产生的气流激振力计算模型,开发出了基于Matlab的气流激振力计算与分析软件,以探讨叶片气流激振力特性随叶栅结构参数的变化关系。
Analysis and countermeasures of chlorine corrosion on steam turbine rotor blades;
汽轮机动叶片氯腐蚀的分析与对策
The Steel Melting Process Research for the Inner Case of the Super Critical Steam Turbine;
超临界汽轮机内缸炼钢工艺研究
The Precision Casting Practice for the Crown Guide Blade of the Steam Turbine;
汽轮机自带冠导叶片精铸工艺实践
With improved IR test method,the content of T746 in anti-rust steam turbine oil was tested after different time of water elution.
汽轮机油在使用过程中,由于机组轴封等原因,容易造成其中含有大量水分,从而对汽轮机组造成锈蚀危害。
Alkenyl succinic acid(ASA)as an anti-rust additive is generally used in steam turbine oil.
分别测定了含烯基丁二酸的汽轮机油/蒸馏水及汽轮机油/合成海水体系的界面张力、界面剪切粘度、油相粘度及乳状液稳定性。
Through the analysis on the production process of L-TSA oil, the factors of affecting the demulsibility of steam turbine oil are sought from the base oil, additive and blending process.
通过对L-TSA油品的调合过程进行分析,分别从基础油、添加剂和调合工艺过程三方面探寻制约汽轮机油抗乳化性能提高的原因,研究发现基础油的白土吸附深度、水分含量对基础油本身的破乳化性能影响显著,从而导致用其调制的汽轮机油抗乳化性出现相应变化;而添加剂中金属减活剂和防锈剂的加剂量对成品油的抗乳化性能有一定的影响。
Analysis of emulsification of turbine oil;
汽轮机油乳化原因分析及对策
The emulsified turbine oil was researched by heating demulsification method,adsorption demulsification method and chemical demulsification method.
采用加热法、吸附法和化学法3种破乳方法对乳化后的汽轮机油进行了研究,重点讨论了化学破乳法的破乳机理、破乳剂及破乳工艺条件的选择。
First,the main reasons of deterioration of turbine oil demulsibility are analyzed.
分析汽轮机油破乳化性能劣化的危害和主要原因,结合电力生产各个环节的具体特点,针对电厂用汽轮机油的运行条件提出了恢复和改善润滑油破乳化性能的主要途径是做好新油验收、运行油维护及通过引入破乳剂等方法,并介绍了在浙江电网某厂利用破乳剂改善破乳化性能的典型成功实例。
Aimed at the failure of the coupling breaking of steam turbine speed governor, this paper briefly presents the process of the breaking, analyzes reasons for the failure from many aspects and proposes effective, methods and prevention measures to ensure safe and stable operation of the compressor bundle.
针对蒸汽轮机调速器传动机构联轴节断裂故障,简述联轴节损坏经过,从多方面分析其损坏原因, 提出有效的解决方法和防范措施,确保压缩机组安全稳定运行。
Integratedgasification combined cyclesystem, using both gasand steam turbine offers significant improvement in overall system efficiency an.
煤气化联合循环发电同时采用燃气轮机和蒸汽轮机发电,使环境控制和总系统效率有相当大的提高。
A combined cycle power plant, which combines a gas turbine, a heat recover steam generator and a steam turbine, has the increasingly important effect in power generation industry, because of its high efficiency and low exhaustion advantages.
由燃气轮机、余热锅炉和蒸汽轮机组成的联合循环电厂由于其高效率、低排放等优良性能,在发电领域中起到了日益重要的作用。
The failure of a turbine axes was investigated by sclerometer,optical microscopy,SEM,and mechanics analyses.
通过硬度检测、金相检验、宏观及微观断口分析 ,结合力学分析证实了汽轮机轴失效是由于轴肩变径处加工刀痕导致应力集中 ,造成多条疲劳裂纹萌生、扩展及最终的断裂 ,提出了防止汽轮机轴疲劳断裂的措施 。
Identification of Shaft Orbit and Application in Steam Turbine Vibration Monitoring Diagnosis System;
轴心轨迹识别及其在汽轮机组振动监测诊断中的应用
Research and Development of Steam Turbine Vibration Monitoring and Fault Diagnosis System;
汽轮机组振动在线监测与诊断系统研究及开发
In doing so,we take into account the change of the bearings′ viscosity and density with that of temperature and pressure and then obtain the transient response of the elliptical bearing of a steam turbine when the load suddenly changes.
联立求解广义雷诺方程、油膜瞬态三维能量方程、轴瓦瞬态三维固体热传导方程及轴颈的运动方程,并考虑粘度和密度随温度及压力的变化,在油膜与轴瓦界面使用热流连续性边界条件,得到了在载荷突然变化时汽轮机组椭圆轴承的瞬态响应。