期刊论文

Application of Varnish Potential Rating on Deterioration Analysis of Phosphates Ester Fire Resistant Oil

中文

中国电力

1004-9649

2018

51

7

108-112,144

10.11930/j.issn.1004-9649.201711139

广东电网公司科技项目

本校为第一机构

某大型电厂5号机组抗燃油发生劣化,闪点、体积电阻率、泡沫特性超标。为找出劣化原因,按DL/T571 — 2014《电厂用磷酸酯抗燃油运行维护导则》,对该机组运行抗燃油(运行油)和库存新抗燃油 (新油)进行了各项指标测试,结果显示运行油中氯、多种元素和矿物油含量等并无异常,因而难以判断劣化原因。后将漆膜倾向指数运用于抗燃油的劣化原因分析,发现该机组运行油的漆膜倾向指数为43.4,而库存新油的漆膜倾向指数仅为0.1;结合油的颜色变化,说明油品严重老化、急需处理,随即提出换油和加强抗燃油日常监督的建议。由此可见,漆膜倾向指数在油品分析中有重要作用。

The flash point, volume resistivity and foaming properties of phosphates ester fire resistant oil of unit 5 of a large power plant were found exceeding the standards. To find out the cause of deterioration, many indicators of operating phosphates ester fire resistant oil (operating oil) and new phosphates ester fire resistant oil of unit5 were tested according to DL/T 571-2014 "Guide for operation and maintenance of phosphates ester fire-resistant fluid used in power plant". The results indicated that there was nothing abnormal detected in the chlorine content, elemental analysis or mineral oi...