文档介绍：CHANGSHA UNIVERSITY OF SCIENCE & TECHNOLOGY
毕业设计(论文)
题目:变压器油中活性硫测试方法的研究
变压器油中活性硫测试方法的研究
学生姓名: 何维民
学号: 200967090124
班级: 应化09-01
所在院(系): 化学与生物工程学院
指导教师: 汪红梅
完成日期: 2013/6/20
变压器油中活性硫测试方法的研究
摘要
本文采用艾氏卡法、库仑法和高频红外法对变压器中活性硫进行测定。调整艾氏卡法测定条件,通过以白油为基础油,加入含活性硫的2-正丁基硫醚试剂配制一系列质量浓度的硫标准样品,参照ASTM-D-1275(B)法的实验条件,获得含腐蚀性硫试样,优化铜粉与样品的反应时间,分别测定与铜粉反应前后的各样中的全硫以及反应后铜粉中硫含量。通过硫标准样品中腐蚀性硫含量的线性回归r值来衡量三种方法的精密性,对比艾氏卡法、高频红外法与库仑法,发现库仑法是三种方法中最可信的测定油中腐蚀性硫的方法,且高频红外法是未来研究油中活性硫的一个新方向。
关键词:变压器油;活性硫测定;库仑法;高频红外法;线性回归
RESEARCH ON THE TEST METHOD OF CORROSIVE SULFUR IN TRANSFORMER OIL
ABSTRACT
In this paper,eschka,coulometry and high frequency infrared method are used to determine the active sulfur in transformer oil. 2-n-butyl sulfide reagent containing active sulfur was added to paraffin liquid to prepare a series of sulfur standard samples. Reaction time between copper power and samples was optimized according to the experimental conditions of ASTM-D-1275 (B) method, and then the total sulfur of each sample before and after the reaction with the copper power , and the sulfur content of reacted copper power were determined respectively. The precision of the three methods pared by the linear regression r of the content of corrosive sulfur in standard sulfur sample. The results showed that the coulometric method was the most reliable methods of the three methods and the high-frequency infrared method would be applied to measuring the active sulfur in oil in the future.
Key words: Transformer oil;Corrosive sulfur determination;Coulometry;High-frequency infrared method;Linear regression
目录
1 绪论 1
选题目意义 1
硫测定方法的现状及趋势 1
现有油中硫的测定方法 2
国内外研究现状 4
本论文研究内容 5
2 实验部分 7
7
7
实验试剂 7
8
艾氏卡法 9
9
9
库仑法 9
9
10
高频红外法 10
10
10
3 结果讨论与分析 11
含腐蚀性硫样的选择 11
油样与铜粉反应时间的确定 11
库仑法 11
高频红外法 12
库仑法 14
艾氏卡试剂用量确定 14
燃烧温度的确定