GIS设备气密封O型圈老化及其使用寿命的试验研究  

Research on Aging and Working Life of the O Type Sealing Ring Used in GIS

作　　者：成勇[1] 张欣 刘宇[1] 赵宇明 李劭頔[1] 黄荣辉 骆虎[1] 武星[1] 

机构地区：[1]西安高压电器研究院有限责任公司,西安710075 [2]深圳供电局有限公司,深圳518000

出　　处：《高压电器》2016年第11期88-94,101,共8页High Voltage Apparatus

基　　金：南方电网公司重点科技项目(2014科资0013)~~

摘　　要：O型密封圈广泛应用于GIS设备中。为了研究O型圈的老化及老化后的永久变形情况,文中设计了一种老化试验的方法,依据该方法进行老化试验并收集了不同温度下的试验结果。同时介绍了一种数据处理方法,依据该方法对试验结果进行处理,获得不同温度下的密封圈使用寿命预测值。根据文中试验研究结果可以得到:GIS设备气密封O型圈压缩永久变形率,与老化时间及老化温度均正相关,且老化过程遵循阿伦尼乌斯关系;在密封圈工作温度为70℃的情况下,其使用寿命为2.5年。利用文中的方法及结论可以指导GIS设备运维人员对密封圈使用寿命进行评估分析。O type sealing ring is widely used in GIS. In order to test the aging condition and show the permanent deformation of O type sealing ring,an aging experiment method is designed. Several experiments are conducted based on the method, and experimental results of different temperatures are gathered. At the same time, a data processing method is introduced, and the test results are processed according to the method, and the lifetime prediction values of the seal ring under different temperatures are obtained. According to the experimental research, some conclusions can be obtained such as： the permanent deformation of O type sealing ring is proportional to the aging time and temperature,and the aging progress follow the Arrhenius rule; The working life of O type sealing ring is 2.5 years while the working temperature is 70 ℃. The methods and conclusions from this paper can be used to direct the users of GIS O type sealing ring to estimate the lifetime.

关 键 词：GIS SF6气密封 O型密封圈 老化试验 压缩永久变形 

分 类 号：TM595[电气工程—电器]