水下连接器球面密封沟槽对O形圈密封性能的影响分析  

Influence of Underwater Connector Spherical Sealing Groove on O-ring Sealing Performance

作　　者：吴露 运飞宏 侯广信 刘冬[2] 安维峥 矫克丰 王立权[2] WU Lu;YUN Feihong;HOU Guangxin;LIU Dong;AN Weizheng;JIAO Kefeng;WANG Liquan(Beijing Research Center of CNOOC(China)Co.,Ltd.,Beijing 100028,China;Harbin Engineering University,Harbin 150001,China)

机构地区：[1]中海石油(中国)有限公司北京研究中心,北京100028 [2]哈尔滨工程大学,哈尔滨150001

出　　处：《机械工程师》2023年第2期37-40,共4页Mechanical Engineer

基　　金：水下连接装置样机研发(CCL2020RCPS0424RSN);国家自然科学基金项目(52001089);中央高校基本科研业务费专项资金项目(3072021CFT0701)。

摘　　要：一种可以实现水下连接角度补偿的球形法兰连接器采用O形圈作为主要的密封元件,位于球面上的密封槽通过影响O形圈的伸长率和压缩率来实现密封效果。槽宽b与槽深h是密封沟槽的主要尺寸,在满足球面沟槽设计准则的前提下,对O形圈球面密封沟槽的尺寸进行了设计计算。基于标准沟槽与球面沟槽体积大小一致的原则,确定了球面密封槽的具体尺寸。密封圈沟槽的尺寸设计主要改变了O形圈的压缩率大小。通过研究压缩率对O形圈密封效果的影响可以确定,17.6%左右的压缩率能够使密封圈的密封效果达到最佳。A spherical flange connector that can realize underwater connection angle compensation adopts an O-ring as the main sealing element,and the sealing groove on the spherical surface affects the sealing effect by affecting the elongation and compression rate of the O-ring.The groove width b and groove depth h are the main dimensions of the sealing groove.The size of the O-ring spherical sealing groove is designed and calculated under the premise of satisfying the design criteria of the spherical groove.Based on the principle that the volume of the standard groove and the spherical groove are consistent,the specific size of the spherical sealing groove is determined.The design of the sealing ring groove size mainly changes the compression rate of the O-ring.By studying the influence of the compression rate on the sealing effect of the O-ring,this paper determines that the compression rate of about 17.6%can make the sealing effect of the sealing ring reach the best.

关 键 词：O形圈 球面密封 密封沟槽 压缩率 

分 类 号：TE19[石油与天然气工程—油气勘探]