摘要
研究了矿物油含量对磷酸酯类抗燃油泡沫特性的影响,发现极少量的碳氢矿物油(质量分数<0.1%)就会导致抗燃油的泡沫特性显著增大。并通过DL/T 1979—2019方法测定了中广核两个电厂所使用的两类磷酸酯类抗燃油新油和旧油的矿物油含量,并通过气相质谱仪检测了所得矿物油的成分。结果表明,新油测试后所得的油溶性物质(矿物油)为未水解完全的磷酸酯抗燃油和部分水解产物以及硅油等添加剂;而旧油测试后所得的油溶性物质(矿物油)包括未水解完全的磷酸酯抗燃油和部分水解产物,以及部分高沸点物质,可能为碳氢矿物油或水解产物与旧油中的金属离子生成的皂化物。因此,电厂在检测抗燃油中矿物油含量时应优化皂化和萃取方法,确保测试过程中抗燃油完全水解,并避免水解产物对测试结果的影响。
In this paper,the effect of mineral oil content on the foam resistance of phosphate ester was studied.It was found that a very small amount of hydrocarbon oil(<0.1%)would lead to a significant increase in the foam resistance of fuel oil.The mineral oil content of two kinds of phosphate ester resistant fuels used in two power plants of CGN was determined by DL/T 1979—2019 method.The composition of the obtained mineral oil was detected by GC-MS.The results showed that the oil soluble substances(mineral oil)obtained after the new oil test were not completely hydrolyzed phosphate ester resistant fuel,partial hydrolyzed products and additives such as silicone oil.The oil soluble substance(mineral oil)obtained after the test of the old oil includes the incomplete hydrolyzed phosphate ester resistant fuel and some hydrolyzed products,as well as some high-boiling substances,which may be hydrocarbon mineral oil or the saponification of the hydrolyzed products and metal ions in the old oil.Therefore,the power plant should optimize the saponification and extraction methods when detecting the mineral oil content in the resistant fuel oil,to ensure that the resistant fuel oil is completely hydrolyzed during the test process,and to avoid the influence of hydrolytic products on the test results.
作者
胡平生
郑治文
徐应军
乔旦
米贤才
HU Ping-sheng;ZHENG Zhi-wen;XU Ying-jun;QIAO Dan;MI Xian-cai(China Nuclear Power Operations Co.,Ltd.,Shenzhen 518000,China;Lanzhou Institute of Chemical Physics,Lanzhou 730000,China;Daya Bay Nuclear Power Operations and Management Co.,Ltd.,Shenzhen 518000,China)
出处
《液压气动与密封》
2025年第6期96-102,共7页
Hydraulics Pneumatics & Seals
关键词
磷酸酯抗燃油
泡沫特性
矿物油
组分分析
phosphate ester fuel resistant
foam characteristics
mineral oil
composition analysis
