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| 汽轮机保安系统典型故障的机理研究及实例分析 | |
| 引用本文： | 张雷,张建,李鑫,孙婷婷,毕仲波.汽轮机保安系统典型故障的机理研究及实例分析[J].电站系统工程,2009,25(1). |
| 作者姓名： | 张雷 张建 李鑫 孙婷婷 毕仲波 |
| 作者单位： | 1. 山东电力研究院 2. 山东石横发电厂 3. 华电莱城发电厂 |
| 摘 要： | 在汽轮机打闸或跳闸时,主汽门关闭时间延长的故障在许多电厂,尤其新机组调试过程中均出现过;以ND83/83/07-1型汽轮机的保安系统为例,对卸荷阀的工作原理,以及快关时间延长的故障机理展开全面分析和研究,并借助具体事例分析对此做了进一步阐述。研究结果表明:主汽门要实现正常快速关闭,必须保证,危急遮断油路工作正常,油动机的控制电磁阀性能良好,进汽阀的阀芯弹簧预紧力符合设计要求,并且卸荷阀内部油路畅通无阻、组件性能正常等。 |
| 关 键 词： | 热能动力工程 卸荷阀 保安系统 主汽门 汽轮机 |
Example Analysis and Mechanism Study on Typical Failure of a Steam Turbine Security System |
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| ZHANG Lei,ZHANG Jian,LI Xin,SUN Ting-ting,BI Zhong-bo.Example Analysis and Mechanism Study on Typical Failure of a Steam Turbine Security System[J].Power System Engineering,2009,25(1). | |
| Authors: | ZHANG Lei ZHANG Jian LI Xin SUN Ting-ting BI Zhong-bo |
| Abstract: | The fault that quick-acting shutoff time of throttle valve is prolonged while turbine tripping or shut-down happened in many power plants, especially during the commissioning course of the new units. The security system of ND83/83/07-1 steam turbine being used as examples, the fault mechanism that quick-acting shutoff time is prolonged, and unloading valve operation principle were analyzed and investigated. These were explained further by means of specific examples. The study results show such a fact, that ... |
| Keywords: | thermal power engineering unloading valve security system throttle valve steam turbine |
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