热力发电2017，Vol.46Issue(3)：77-81,5.DOI:10.3969/j.issn.1002-3364.2017.03.077
运行温度对磷酸酯抗燃油热氧化安定性的影响
Effect of running temperature on thermal oxidation stability of phosphate ester fire-resistant oil
靳江波 1王笑微 2蒋朦 2刘晓莹2
作者信息
- 1. 北京京西燃气热电有限公司,北京100041
- 2. 西安热工研究院有限公司,陕西西安710032
- 折叠
摘要
Abstract
Deterioration of phosphate fire-resistant oil will directly affect the security and economy of the unit.To investigate the influencing factors of fire resistant-oil thermal oxidation,open-cup aging test of the fire-resistant oil was carried out at different temperatures,by combining the chain reaction principle of hydrocarbons free radicals oxidation with the analytical example of fire-resistant oil oxidized in a certain power-plant.The results show that,at temperatures below 60 ℃,the oil quality had no obvious change.When the temperature was increased from 60 ℃ to 90 ℃,the acid value and resistivity of the oil changed a lot.With the continuous rise in temperature,precipitation appeared in the fire-resistant oil.At temperatures higher than 120 ℃,the resistivity of the oil had surpassed the standard of running oil.So it is concluded that running temperature is the key factor affecting thermal oxidation stability of the phosphate ester fireresistant oil.Therefore,it suggests the working temperature of the phosphate ester fire-resistant oil should be controlled within 35 ℃ to 55 ℃,and the opening degree of the oil cooler should be monitored during the unit startup/stop process and working state,to prevent thermal oxidation of the fire-resistant oil and ensure safe operation of the speed regulating system.关键词
磷酸酯抗燃油/自由基/链锁反应/开口杯老化/运行温度/热氧化安定性Key words
phosphate ester fire-resistant oil/free radical/chain reaction/open-cup aging/running temperature/thermal oxidation stability分类
信息技术与安全科学引用本文复制引用
靳江波,王笑微,蒋朦,刘晓莹..运行温度对磷酸酯抗燃油热氧化安定性的影响[J].热力发电,2017,46(3):77-81,5.
