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    • 1. 发明授权
    • Method and apparatus inspecting pipelines using magnetic flux sensors
    • 使用磁通量传感器检测管道的方法和设备
    • US07414395B2
    • 2008-08-19
    • US11277523
    • 2006-03-27
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • G01N27/72
    • G01N27/82
    • The method for detecting stress corrosion cracking (SCC) of pipelines, comprising the steps of: identifying pipeline locations and pipeline conditions that are amenable to inspection by a magnetic flux inline tool and by a TFI tool; performing two inspections on the pipeline, one inspection performed using the magnetic flux inline (MFL) tool and an other inspection performed using the TFI tool; aligning signal features resulting from the two inspections; identifying TFI signals occurring above a specified threshold; identifying MFL signals for a section of pipeline corresponding to the identified TFI signals; for the identified TFI signals, determining whether the MFL signals are below a second threshold level; designating the sections of the pipeline corresponding to identified TFI signals above the threshold and below the second threshold as a potential corrosion feature; identifying TFI signals that exceed a defined metal loss percentage; measuring a width and length of the signal features, and if the width and length of the signal feature exceed threshold crack width and length values, designating as a potential corrosion feature section of pipeline corresponding to the identified TFI signals.
    • 一种用于检测管道应力腐蚀开裂(SCC)的方法,其特征在于包括以下步骤:识别管道位置和管线条件,以便易于通过磁力线性工具和TFI工具进行检查; 对管道进行两次检查,使用磁力在线(MFL)工具执行一次检查,并使用TFI工具执行其他检查; 对准两次检查产生的信号特征; 识别发生在指定阈值以上的TFI信号; 识别对应于所识别的TFI信号的一段管道的MFL信号; 对于所识别的TFI信号,确定MFL信号是否低于第二阈值电平; 指定对应于高于阈值并低于第二阈值的识别的TFI信号的管线的部分作为潜在腐蚀特征; 识别超过定义的金属损失百分比的TFI信号; 测量信号特征的宽度和长度,如果信号特征的宽度和长度超过阈值裂缝宽度和长度值,则指定为与所识别的TFI信号相对应的管线的潜在腐蚀特征部分。
    • 2. 发明申请
    • METHOD AND APPARATUS INSPECTING PIPELINES USING MAGNETIC FLUX SENSORS
    • 使用磁通量传感器检查管道的方法和装置
    • US20070222436A1
    • 2007-09-27
    • US11277523
    • 2006-03-27
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • Ming GaoSergio LimonRichard Clark McNealyRon Sherstan
    • G01N27/82
    • G01N27/82
    • The method for detecting stress corrosion cracking (SCC) of pipelines, comprising the steps of: identifying pipeline locations and pipeline conditions that are amenable to inspection by a magnetic flux inline tool and by a TFI tool; performing two inspections on the pipeline, one inspection performed using the magnetic flux inline (MFL) tool and an other inspection performed using the TFI tool; aligning signal features resulting from the two inspections; identifying TFI signals occurring above a specified threshold; identifying MFL signals for a section of pipeline corresponding to the identified TFI signals; for the identified TFI signals, determining whether the MFL signals are below a second threshold level; designating the sections of the pipeline corresponding to identified TFI signals above the threshold and below the second threshold as a potential corrosion feature; identifying TFI signals that exceed a defined metal loss percentage; measuring a width and length of the signal features, and if the width and length of the signal feature exceed threshold crack width and length values, designating as a potential corrosion feature section of pipeline corresponding to the identified TFI signals.
    • 一种用于检测管道应力腐蚀开裂(SCC)的方法,其特征在于包括以下步骤:识别管道位置和管线条件,以便易于通过磁力线性工具和TFI工具进行检查; 对管道进行两次检查,使用磁力在线(MFL)工具执行一次检查,并使用TFI工具执行其他检查; 对准两次检查产生的信号特征; 识别发生在指定阈值以上的TFI信号; 识别对应于所识别的TFI信号的一段管道的MFL信号; 对于所识别的TFI信号,确定MFL信号是否低于第二阈值电平; 指定对应于高于阈值并低于第二阈值的识别的TFI信号的管线的部分作为潜在腐蚀特征; 识别超过定义的金属损失百分比的TFI信号; 测量信号特征的宽度和长度,如果信号特征的宽度和长度超过阈值裂缝宽度和长度值,则指定为与所识别的TFI信号相对应的管线的潜在腐蚀特征部分。
    • 4. 发明授权
    • Method for improved crack detection and discrimination using circumferential magnetic flux leakage
    • 使用周向磁通泄漏改善裂纹检测和辨别的方法
    • US07706988B2
    • 2010-04-27
    • US12075903
    • 2008-03-14
    • Richard Clark McNealyMing Gao
    • Richard Clark McNealyMing Gao
    • G06F19/00G01N27/00
    • G01N27/82
    • A method of predicting at least one physical change in crack geometry of a crack in a pipeline based on in-line inspection operating pressure is presented. In one method, a first test on a pipeline is performed at a first pressure, which obtains a first set of test data. A second test is performed on the pipeline at a second pressure, obtaining a second set of test data. The first and second sets of test data are compared for any difference. A run comparison software processing device may be employed. In other methods, finite element analysis of crack-like dimensions is performed to predict Crack Mouth Opening Displacement (CMOD) for a given set of crack dimensions for a surface-breaking crack and inline pipe inspection operating run pressure. Another method predicts probability of detection of a crack associated with a given CMOD as a function of pressure in successive inspections.
    • 提出了一种基于在线检测操作压力预测管道裂纹裂纹几何形状的至少一种物理变化的方法。 在一种方法中,在第一压力下执行管道上的第一测试,其获得第一组测试数据。 在管道上以第二压力执行第二测试,获得第二组测试数据。 比较第一组和第二组测试数据的差异。 可以采用运行比较软件处理装置。 在其他方法中,进行裂纹尺寸的有限元分析以预测裂纹开口位移(CMOD),用于破裂裂纹和管线检查操作运行压力的一组给定的裂纹尺寸。 另一种方法预测在连续检查中作为压力的函数检测与给定CMOD相关联的裂纹的概率。
    • 8. 发明授权
    • Sheet medium processing device
    • 片材介质处理装置
    • US09010746B2
    • 2015-04-21
    • US13979130
    • 2012-01-11
    • Zhenxing ZhaoZhigang XuMing GaoQingbang Xu
    • Zhenxing ZhaoZhigang XuMing GaoQingbang Xu
    • B65H29/14B65H29/00B65H29/12B65H31/30B65H29/58B65H11/00B65H5/02G07B1/00
    • B65H29/00B65H5/023B65H11/007B65H29/12B65H29/145B65H29/58B65H31/3027B65H2402/344B65H2403/41B65H2403/512B65H2404/2614B65H2404/2615B65H2404/725B65H2408/13B65H2701/1912B65H2701/1936G07B1/00
    • A sheet medium processing device comprising a stacking mechanism mounted on a frame, a first switching mechanism and a retractable paper baffle adjacent to the medium exit of the stacking mechanism; the stacking mechanism comprises a lower ticket stacking assembly, an upper ticket stacking assembly capable of moving parallelly above the lower ticket stacking assembly and a parallel movement confining mechanism, wherein the upper ticket stacking assembly and the lower ticket stacking assembly are both belt-conveyor mechanisms, and the belt of the upper ticket stacking assembly has a tendency of tightly pressing against the belt of the lower ticket stacking assembly. The first switching mechanism simultaneously controls the reciprocation of the paper baffle and the parallel movement of the upper ticket stacking assembly, enabling the stacking mechanism to be selectively provided with a transport state and a stacking state. The sheet medium processing device utilizes the elasticity of the belts of the stacking mechanism to adjust and limit the vertical-direction state of multiple stacked sheet mediums, thereby achieving reliable transportation.
    • 一种片介质处理装置,包括安装在框架上的堆叠机构,第一切换机构和与堆叠机构的介质出口相邻的可伸缩纸挡板; 堆叠机构包括:下票证堆叠组件,能够并行地移动到下票据堆叠组件上方的上位票据堆叠组件和平行运动限制机构,其中上部票据堆叠组件和下部票据堆叠组件均为带式输送机构 ,并且上部机票堆叠组件的皮带具有紧紧压靠下部机票堆叠组件的皮带的倾向。 第一切换机构同时控制纸张挡板的往复运动和上部机票堆叠组件的平行运动,使得堆叠机构能够选择性地具有输送状态和堆叠状态。 片材介质处理装置利用堆叠机构的带的弹性来调节和限制多个堆叠的片材介质的垂直方向状态,从而实现可靠的运输。