摘要
为了研究过电缆封隔器胶筒密封性能,设计加工了胶筒高温耐压试验装置。对带弹簧防突单胶筒、带弹簧防突双胶筒、带弹簧防突三胶筒和带放气孔双胶筒进行常温、60和120℃高温下耐压试验,试验中采用电测法测定胶筒套管间接触应力,并获得了接触应力沿套管轴向的分布规律。通过分析4种胶筒结构峰值接触应力与接触应力沿接触长度的积分值,优选出带弹簧防突三胶筒和带放气孔双胶筒为较优结构,同时建议对带放气孔双胶筒设计端部保护结构。研究结果可为过电缆封隔器的现场安全使用提供参考。
To study cable-through packer rubber＇s sealing performance,the high temperature and high pressure test device for packer rubber were designed and manufactured. Under room temperature,60℃ and 120℃,high pressure tests were done on single,double and triple packer element with spring for outburst prevention and double packer element with air bleed hole. The electrometric method was used to measure the contact stress between the rubber and casing pipe in the test,and the contact stress distribution along the axial direction of the casing pipe were obtained. By analyzing peak contact stress and contact stress＇ integral value along the contact length of four kinds of packer rubber,triple packer element with spring and double packer element with air bleed hole were selected as preferred structure. The end protection structure was suggested for the double packer element with air bleed hole. The study results could provide reference for the safe use of cable-through packer.
出处
《石油机械》
2016年第6期106-109,共4页
China Petroleum Machinery
