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Conclusion The work on centering the unit with consideration of the natural sagging of the turbine block made it possible to reduce vibration of components of the unit by more than 50%.Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 7, pp. 52–55, July, 1986.  相似文献   

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用统计分析方法,作水轮发电机组振动区边界H-P曲线,得出不同水头下振动区有功出力的范围,研究结果对机组避开振动区运行有实际指导意义.  相似文献   

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Conclusion The method developed provides a high quality of balancing rotors of overhung generators by the operating personnel of the hydrostation after two turns of the unit.Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 9, pp. 16–17, September, 1986.  相似文献   

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以混流式水轮发电机组为研究对象,针对轴系存在横振和扭振的情形,应用有限元法建立水轮发电机组主轴系统的非线性动力学方程,利用多尺度法分析水轮发电机组主轴系统的非线性振动特性并计算主轴系统振动速度的1阶近似解,采用声学理论构建由混流式水轮发电机组轴系和周围空气所组成的声学系统的离散化方程,揭示机组振动噪声与其非线性振动间的内在关系,为混流式水轮发电机组振动噪声的控制提供一定的理论依据。  相似文献   

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简要介绍了电化腐蚀、线棒绝缘机械破损、线棒绝缘降低产生的原因及其所引发的几起典型故障.通过分析,提高了对电化腐蚀、线棒绝缘破损以及线棒绝缘降低对水轮发电机定子绕组危害的认识,其处理方法可为同行提供借鉴.  相似文献   

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水轮发电机定子下线的流程和工艺各制造厂家都有要求,但是对于电站施工现场的一些特殊情况、处理方法及注意事项并没有作出详细的说明。作者就多年在现场实际工作经验、施工中易出现的问题和应注意事项作简单的阐述,以供参考。  相似文献   

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1.  The development of an ATDS should be realized individually for each operating station with consideration of the design characteristics of the units and should be aimed at solving one of the most important problems of increasing the operating reliability of the main equipment and economy of operating the hydrostation.
2.  The deterministic approach to compiling technological diagnostic algorithms makes it possible to use the operating experience gained and to make the diagnosis on the basis of the actual technical state of the units of the hydrostation.
3.  The ATDSs should satisfy the requirements of prompt, integrated, automatic, and dynamic performance (possibility of the modular buildup of problems being solved as a result of developing new diagnostic means and methods).
4.  The proposed development of an ATDS at the unit level should be done with the possible prospects of inclusion in the PCS of the hydrostation.
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 10, pp. 43–48, October, 1990.  相似文献   

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彭水水电站水轮发电机组结构特点和安装方法介绍   总被引:1,自引:0,他引:1  
介绍彭水水电站混流式水轮发电机组结构特点、机组主要设备安装方法,为同类型电站机组安装提供参考.  相似文献   

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Conclusions The creation and introduction at operating hydrostations of elastic metal-plastic segments completely solved the problem of providing reliable operation of the bearings of units and opened real prospects for creating bearings for superhigh loads — up to 80–100 MN with moderate sizes of the bearings.Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 8, pp. 39–40, August, 1986.  相似文献   

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孙华  顾旭良  张庆 《小水电》2009,(3):61-62
灵观岩电站是一座中型中高水头水电站,水轮发电机组是三支点卧式结构,刚性连接,电站试运行合格正式投产后一个月,3台机组相继出现机组振动问题以至无法正常运行。通过流道计算流体力学、轴系稳定性、结构分析,提出和实施了消除振动的解决方案,现机组已长期正常运行。图5幅。  相似文献   

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我国水电机组国际招标采购除为了获得技术先进、制造质量好、运行可靠的设备外,还兼顾着引进技术,提高国内制造能力和水平的目的。为此,国内制造厂必须参与与供货合作生产。国内外制造厂对设备生产任务份额的竖向、横向、斜向分割模式各有利弊。通过鲁布革等工程的实践,可以了解在不同资金来源的情况下,如何促进国内外厂商联合。  相似文献   

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