全焊接球阀压盖焊缝相控阵检测技术研究  

Research on Phased Array Inspection Technology of Full Welded Ball Valve Gland Weld

作　　者：王佳文 付洪营 许世法 孙晓霞 WANG Jia-wen;FU Hong-ying;XU Shi-fa;SUN Xiao-xia(Chengdu Chengfeng Valve Co.,Ltd.,Chengdu 611330,Sichuan,China;National Pipeline Network East Storage and Transportation Company Xinxiang Oil Depot,Xinxiang 453003,Henan,China;Chengdu Chenggao Valve Co.,Ltd.,Chengdu 611330,Sichuan,China)

机构地区：[1]成都乘风阀门有限责任公司,四川成都611330 [2]国家管网东部储运公司新乡输油处,河南新乡453003 [3]成都成高阀门有限公司,四川成都611330

出　　处：《阀门》2023年第4期507-511,共5页VALVE MAGAZINE

基　　金：四川省科技厅重大支撑研究专项(项目编号:2018GZ0129)。

摘　　要：针对相贯型压盖焊缝不规则结构以及检测空间受限,无法采用RT射线检测方式以及采用UT、MT、PT和TOFD存在检测盲区的技术问题,提出了基于超声相控阵技术的检测工艺。通过数值仿真确定了可行性的检测工艺方案。制造了压盖焊缝模拟标准试块,通过在试块进行的标定试验获得了满足检测技术要求的检测参数匹配。所提出的检测工艺实现了对压盖焊缝全体积无盲区检测,能应用于与压盖焊缝同类型的压力容器D类焊接接头的检测,为相贯型焊缝的检测提供了一种可视化、无盲区和检测效率高的超声检测工艺方法。Due to irregular structure of junction-type gland and limitation of detection space,RT ray detection mode can’t be adopted and non-detection zone exists in adoption of UT,MT,PT and TOFD detection.So ultrasonic phased array is proposed and numerical simulation for the gland of all-welded ball valve is made to determine the feasibility of the Detection technology.Simulative reference block of gland is fabricated and detection research on the block is made to obtain the optimum parameter combination of detecting technique.Detecting technique of gland is formulated on basis of optimized detecting parameters.Non-blind area detection is realized for the entire volume of gland weld.This technique can be applied in detecting D type welded joint of pressure vessel in the same kind with gland.At the same time,the technique provides ultrasonic detecting method with a visualized non-blind area for junction-type D type welded joint.

关 键 词：全焊接球阀 超声相控阵 模拟试块 

分 类 号：TH134[机械工程—机械制造及自动化]