| 全密封变压器中丁腈橡胶密封圈溶胀渗漏油的数学模型 |
| |
| 引用本文： | 代有杰,郭永基,卢旭日.全密封变压器中丁腈橡胶密封圈溶胀渗漏油的数学模型[J].清华大学学报(自然科学版),1996(9). |
| |
| 作者姓名： | 代有杰 郭永基 卢旭日 |
| |
| 作者单位： | 清华大学电机工程与应用电子技术系，浙江省三门变压器厂 |
| |
| 摘 要： | 首次对以丁腈橡胶和聚四氟乙烯为材料的变压器密封圈的溶胀机理进行了研究并获得重要成果。溶胀渗漏油是指密封因吸油增重，油再透过密封圈渗漏到变压器体外的过程。作者在分析机理的基础上，将溶胀漏油划分为吸附过程，扩散过程，漏油过程，建立了数学模型，进而求得数学模型的近似解析解。定义了度量溶胀漏油的指标：吸附层厚度；吸附时间；扩散过渡时间；漏油量。为计算溶胀提供理论基础。
|
| 关 键 词： | 全密封变压器 密封圈 溶胀渗漏油 丁腈橡胶 |
Mathematical model of swelling characteristics of butadiene-acrylonitrile rubber seal ring in full-sealed transformers |
| |
| Dai Youjie, Guo Yongji, Lu Xuri.Mathematical model of swelling characteristics of butadiene-acrylonitrile rubber seal ring in full-sealed transformers[J].Journal of Tsinghua University(Science and Technology),1996(9). |
| |
| Authors: | Dai Youjie Guo Yongji Lu Xuri |
| |
| Abstract: | Mechanism of swelling oil-leakage of transformer's seal rings made by butadieneacrylonitrile rubber and polytetrafluoroethylene is presented in this paper. Swelling oilleakage is defined that oil is absorbed into seal rings by which weight of ring is increasing thenoil-leakage occurs through sealed ring outside the transformer tank. Based on analyzingmechanism, swelling is classified as three related processes:absorbing; spreading; leaking.Mathematical model is developed. An approximate analytical solution is obtained. Indexesfor measuring swelling are defined: thickness of absorbing layer; absorbing time duration;spreading time duration; oil-leakage volume. Results obtained provide theoretical base forcalculating swelling. It is of great significance both for science and engineering practice. |
| |
| Keywords: | full-sealed transformer seal ring swelling oil-leakage butadiene-acrylonitrilerubber |
| 本文献已被 CNKI 等数据库收录！ |
