The research reported in this paper aims at developing means of Non Destructive testing (NDT) to increase the line efficiency of pipe production in oil and natural gas pipe manufacturing plants using the Standard Allo...The research reported in this paper aims at developing means of Non Destructive testing (NDT) to increase the line efficiency of pipe production in oil and natural gas pipe manufacturing plants using the Standard Allowed Minutes (SAM) method. Existing line production stations encounter difficulties in maintaining the recommended testing speed of smaller diameter pipe, due to limitations in the Visual Inspection (VI) station. We propose to implement one additional technique which will prevent the decline of line efficiency in a pipe production factory. The range of diameters identified as a problem in this research is from 254 mm to 762 mm. Microwave techniques are expected to improve the line efficiency by increasing the production of the plant. This happens as a consequence of maintaining the production rates of the identified pipe diameters, so that they equal the production output of the larger pipe diameters. We analyze the velocity traveled by the pipe through Radiographic Testing (RT) according to the VI output (production). The RT velocity is decreased for the diameters identified above, in order to maintain quality control and cover the shortcoming of the VI. The number of pipes produced is computed during shift hours of the factory and pipe lengths of the forming department are determined. We compare the output (production) of a series of NDT line stations with and without the microwave technique for the first of the three pipe cases considered in this study, classified as perfect pipe (PP), repair pipe (RP) and scrap pipe (SP). The velocity of RT stations analyzed in the paper ranges from 50 mm/s for larger diameter pipe, and decline to 16.667 mm/s for the identified diameters. The analytical calculations of line output (production) and line efficiency demonstrate the solution of this velocity problem after the microwave technique is introduced. It demonstrates that an economical and precise methodology to extend the production capability of the pipe plant has been determined.展开更多
为规范电网设备运行,提高巡检作业的效率,引进机器人流程自动化(Robotic Process Automation,RPA)技术,研究电网设备运行巡检技术。通过物联网技术,将电网中的各类设备、传感器、控制器等互联互通,设计电网设备运行环境通信网络的全覆...为规范电网设备运行,提高巡检作业的效率,引进机器人流程自动化(Robotic Process Automation,RPA)技术,研究电网设备运行巡检技术。通过物联网技术,将电网中的各类设备、传感器、控制器等互联互通,设计电网设备运行环境通信网络的全覆盖布局,实现数据的实时采集、传输、处理与分析;根据电网设备的空间布局,设定跟踪控制目标,利用RPA技术中的动态执行指数(Directional Movement Index,DEI),数字化跟踪电网设备运行数据;聚合与统计跟踪得到的电网设备运行数据,通过地理信息系统(Geographic Information System,GIS)或现场测量等手段,获取每个电网设备的精确空间坐标;通过分配巡检路径,实现对设备运行的智能巡检。对比实验结果证明,设计的巡检技术应用效果良好,可以提高巡检效率,缩短巡检路径,实现对所有设备的规范化巡检。展开更多
文摘The research reported in this paper aims at developing means of Non Destructive testing (NDT) to increase the line efficiency of pipe production in oil and natural gas pipe manufacturing plants using the Standard Allowed Minutes (SAM) method. Existing line production stations encounter difficulties in maintaining the recommended testing speed of smaller diameter pipe, due to limitations in the Visual Inspection (VI) station. We propose to implement one additional technique which will prevent the decline of line efficiency in a pipe production factory. The range of diameters identified as a problem in this research is from 254 mm to 762 mm. Microwave techniques are expected to improve the line efficiency by increasing the production of the plant. This happens as a consequence of maintaining the production rates of the identified pipe diameters, so that they equal the production output of the larger pipe diameters. We analyze the velocity traveled by the pipe through Radiographic Testing (RT) according to the VI output (production). The RT velocity is decreased for the diameters identified above, in order to maintain quality control and cover the shortcoming of the VI. The number of pipes produced is computed during shift hours of the factory and pipe lengths of the forming department are determined. We compare the output (production) of a series of NDT line stations with and without the microwave technique for the first of the three pipe cases considered in this study, classified as perfect pipe (PP), repair pipe (RP) and scrap pipe (SP). The velocity of RT stations analyzed in the paper ranges from 50 mm/s for larger diameter pipe, and decline to 16.667 mm/s for the identified diameters. The analytical calculations of line output (production) and line efficiency demonstrate the solution of this velocity problem after the microwave technique is introduced. It demonstrates that an economical and precise methodology to extend the production capability of the pipe plant has been determined.
文摘为规范电网设备运行,提高巡检作业的效率,引进机器人流程自动化(Robotic Process Automation,RPA)技术,研究电网设备运行巡检技术。通过物联网技术,将电网中的各类设备、传感器、控制器等互联互通,设计电网设备运行环境通信网络的全覆盖布局,实现数据的实时采集、传输、处理与分析;根据电网设备的空间布局,设定跟踪控制目标,利用RPA技术中的动态执行指数(Directional Movement Index,DEI),数字化跟踪电网设备运行数据;聚合与统计跟踪得到的电网设备运行数据,通过地理信息系统(Geographic Information System,GIS)或现场测量等手段,获取每个电网设备的精确空间坐标;通过分配巡检路径,实现对设备运行的智能巡检。对比实验结果证明,设计的巡检技术应用效果良好,可以提高巡检效率,缩短巡检路径,实现对所有设备的规范化巡检。
