| 350 MW超临界机组给水泵汽轮机润滑油进水原因及改造方案 |
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| 引用本文： | 刘俊峰.350 MW超临界机组给水泵汽轮机润滑油进水原因及改造方案[J].中国电力,2015,48(3):6-8. |
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| 作者姓名： | 刘俊峰 |
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| 作者单位： | 西安热工研究院有限公司，西安 710032 |
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| 摘 要： | 介绍了国产引进型350 MW机组给水泵及其小汽轮机设备特点；以新疆阿拉尔盛源热电1号机组为例，对于该厂汽动给水泵组润滑油系统长期存在油中进水、油质乳化的问题进行了分析，得出给水泵汽轮机轴封压力不稳定是造成润滑油进水的主要原因。通过对给水泵汽轮机轴封系统供汽方式进行改造，使该问题得以有效解决。
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| 关 键 词： | 给水泵汽轮机 润滑油进水 轴封 改造 |
| 收稿时间： | 2014-10-27 |
Causes and Solutions of Water Leaking into the Lubricating Oil System of Feedwater Pump Turbine of 350-MW Supercritical Units |
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| LIU Junfeng.Causes and Solutions of Water Leaking into the Lubricating Oil System of Feedwater Pump Turbine of 350-MW Supercritical Units[J].Electric Power,2015,48(3):6-8. |
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| Authors: | LIU Junfeng |
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| Affiliation: | Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710032, China |
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| Abstract: | In this paper, the characteristics of the domestically-made feedwater pump with the imported technology and its driving turbine are introduced for the 350-MW unit. Taking the Unit 1 of Xinjiang Alar Shengyuan Power Plant as a case, the long-term existing problems of water leaking into the lubricating oil system of the feedwater pump turbine and oily emulsion are analyzed. The analysis concludes that it is the instable gland steam pressure that causes water to leak into the lubricating oil system. Through the modification of the steam supply mode of the shaft seal system for the feedwater pump turbine, the problems are solved effectively. |
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| Keywords: | feedwater pump turbine water leaking into lubricating oil system shaft seal modification |
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