公开(公告)号：WO2010036382A1

公开(公告)日：2010-04-01

申请号：PCT/US2009/030812

申请日：2009-01-13

Applicant: TDW DELAWARE, INC. ,  SMITH, Dennis R. ,  FREEMAN, Eric N. ,  STILWELL, Graham Christopher ,  COOPER, Charles Culver Gidden ,  LANGLEY, Gregory Allen ,  NELSON, Scott Douglas

Inventor： SMITH, Dennis R. ,  FREEMAN, Eric N. ,  STILWELL, Graham Christopher ,  COOPER, Charles Culver Gidden ,  LANGLEY, Gregory Allen ,  NELSON, Scott Douglas

IPC: B65D43/14

CPC classification number: F16J13/08 ,  F16J13/10 ,  F16J13/18

Abstract: A closure device includes a door carrying a series of interconnected shear blocks and a keystone shear block designed to transfer stresses created by pressure acting on the door to a surrounding hub. Each interconnected shear block has limited rotation relative to its adjacent blocks. A holding band operating handle is in communication with a driving link which, in turn, is in communication with the keystone shear block. Actuating the handle causes the keystone shear block to move in an upward vertical direction. The linear movement of the keystone shear block allows the limited rotation of the interconnected shear blocks to occur, thereby causing the circumferential holding band to collapse within itself from an expanded-engaged position to a contracted-removed position relative to said hub. A pressure warning lock provides a safety device and prevents actuation of the holding band operating handle when the pressure chamber is under pressure.

Abstract translation: 闭合装置包括一个承载一系列互连的剪切块的门，以及设计成将作用在门上的压力产生的应力传递到周围的轮毂的梯形剪切块。 每个互连的剪切块相对于其相邻的块具有有限的旋转。 保持带操作手柄与驱动连杆连通，驱动连杆又与梯形剪切块连通。 执行手柄使梯形截骨块沿向上的垂直方向移动。 梯形剪切块的线性运动允许互连的剪切块的有限的旋转发生，从而导致周向保持带自身从膨胀接合位置折叠到相对于所述毂的收缩移除位置。 压力警告锁提供安全装置，并且当压力室处于压力下时防止保持带操作手柄的致动。

公开(公告)号：WO2010002871A1

公开(公告)日：2010-01-07

申请号：PCT/US2009/049228

申请日：2009-06-30

Applicant: TDW DELAWARE, INC. ,  PRUETT, Rick, D. ,  STRONG, Robert, F. ,  FREEMAN, Eric, N. ,  COOPER, Charles Culver, Gidden ,  NELSON, Scott, Douglas ,  HENAULT, Mark, Russell

Inventor： PRUETT, Rick, D. ,  STRONG, Robert, F. ,  FREEMAN, Eric, N. ,  COOPER, Charles Culver, Gidden ,  NELSON, Scott, Douglas ,  HENAULT, Mark, Russell

IPC: B08B9/055

CPC classification number: B08B9/0557 ,  F16L55/38

Abstract: A pipeline pig includes a venturi and a modulating valve located rearward of the inlet side of the venturi. When the valve is in the open position, a predetermined maximum bypass flow is allowed through the venturi. The closed position allows a predetermined minimum bypass flow. The valve may be a poppet-style valve or a frusto-conical shaped stopper. The stopper has sufficient mass and/or aerodynamic drag to overcome the spring force holding the valve in the open position. When the pig stalls, the valve closes and the stopper chokes bypass flow through the venturi. When the pig starts running again, the valve opens as inertia forces the stopper away from the inlet side of the venturi. Also, as friction of the pig increases due to changes in the internal diameter of the pipeline or accumulation of debris ahead of the pig, increased airflow across the valve creates drag.

Abstract translation: 管道猪包括位于文丘里管入口侧后方的文氏管和调节阀。 当阀门处于打开位置时，通过文丘里管允许预定的最大旁路流量。 关闭位置允许预定的最小旁路流量。 阀可以是提升阀或截头圆锥形止动器。 止动器具有足够的质量和/或空气动力学阻力以克服将阀保持在打开位置的弹簧力。 当猪失速时，阀关闭，止动器扼流器旁路流经文丘里管。 当猪再次开始运行时，阀门打开，因为惯性力使塞子远离文丘里管的入口侧。 此外，随着管道的内径变化或猪排前方的碎屑的积聚，猪的摩擦力增加，增加的气流横跨阀门产生阻力。

公开(公告)号：WO2010080748A1

公开(公告)日：2010-07-15

申请号：PCT/US2010/020088

申请日：2010-01-05

Applicant: TDW DELAWARE, INC. ,  FREEMAN, Eric N. ,  STRONG, Robert F. ,  COOPER, Charles Culver Gidden ,  NELSON, Scott Douglas ,  HENAULT, Mark Russell

Inventor： FREEMAN, Eric N. ,  STRONG, Robert F. ,  COOPER, Charles Culver Gidden ,  NELSON, Scott Douglas ,  HENAULT, Mark Russell

IPC: B08B9/055

CPC classification number: F16L55/38 ,  B08B9/0551 ,  F16L55/46

Abstract: A method and system for launching a pipeline pig includes the steps of compressing a modulating bypass valve of a pipeline pig and installing a locking means to temporally maintain the bypass valve in the compressed state. Once the pig has travelled a predetermined distance through the pipeline, the locking means is released and retrieved through the launch trap door. The locking means is preferably a launching pin having a clip attachment that receives the clips of a retractable lead. The lead is housed by a retraction device that is detachably secured to the launch trap door. The modulating valve has sufficient mass and aerodynamic drag to overcome the force of a gas spring. The valve moves between a retracted and compressed position substantially instantaneously upon the pipeline pig stalling and between the compressed and retracted position substantially instantaneously upon the pipeline pig accelerating.

Abstract translation: 用于发射管线猪的方法和系统包括压缩管道猪的调节旁路阀并安装锁定装置以在旁路阀处于压缩状态的步骤。 一旦猪已经通过管道行驶了预定的距离，则锁定装置被释放并通过发射捕获门取回。 锁定装置优选地是具有接收可伸缩引线的夹子的夹子附件的发射销。 引线由可拆卸地固定到发射诱捕器门的收回装置容纳。 调节阀具有足够的质量和空气动力学阻力以克服气弹簧的力。 在管道停车时基本上瞬时地在收缩压缩位置和压缩位置之间以及管道猪加速之间基本瞬时地在压缩位置和缩回位置之间移动阀。