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：WO2009099762A1

公开(公告)日：2009-08-13

申请号：PCT/US2009/031543

申请日：2009-01-21

Applicant: TDW DELAWARE, INC. ,  PRUETT, Rick D.

Inventor： PRUETT, Rick D.

IPC: F16L45/00 ,  B08B9/04

CPC classification number: B08B9/0557 ,  B05C7/08 ,  B08B9/055 ,  F16L58/1009 ,  F16L2101/16

Abstract: A pipeline pig-that moves by pressurized gas flow and provides for distribution of treating liquid subsisting in a lower portion of a pipeline-having a longitudinally extending nozzle located at a forward end of the pig, an array of helical-shaped louvers located on the discharge side of the nozzle and arranged circumferentially, and two perforated sealing elements that create a cavity that serves as a low pressure plenum. The louvers create a vortex effect and the perforated sealing elements allow vapor and liquid in front of the pig to be drawn into the cavity and discharged through the ports and back into the discharge of the nozzle. In this manner, liquid subsisting at a bottom portion of the pipeline is dispersed to achieve a complete 360° coating application of the interior cylindrical wall of the pipeline.

Abstract translation: 一种管道猪，其通过加压气流移动并且提供存在于管道下部的处理液体的分布，该处理液体具有位于猪的前端的纵向延伸的喷嘴，位于所述管道上的螺旋状百叶窗阵列 喷嘴的排出侧并且周向布置，并且两个穿孔的密封元件形成用作低压增压室的空腔。 百叶窗产生涡流效应，穿孔密封元件允许猪前面的蒸汽和液体被吸入腔中并通过端口排出并返回到喷嘴的排出口中。 以这种方式，分散在管道底部的液体被分散以实现管道的内部圆柱形壁的完整的360°涂覆。

公开(公告)号：WO2010083099A1

公开(公告)日：2010-07-22

申请号：PCT/US2010/020451

申请日：2010-01-08

Applicant: TDW DELAWARE, INC. ,  PRUETT, Rick, D. ,  RANKIN, William, J.

Inventor： PRUETT, Rick, D. ,  RANKIN, William, J.

IPC: B08B9/04

CPC classification number: B08B9/053

Abstract: The present invention is a pipeline pig for cleaning the interior of a pipeline, the pipeline pig having a longitudinal pig body with forward and rearward elastomeric propulsion members affixed to and supporting the pig body substantially concentrically in a pipeline, the propulsion members functioning to move the pig body through a pipeline by the force of fluid flow and a plurality of spaced apart elastomeric diagonally oriented scrapers radially extending from the pig body, each scraper member having a semi-circular outer peripheral edge configured and dimensioned to engage the interior wall of a pipeline to thereby scrape and clean the interior pipeline wall as the pig is moved through the pipeline and provide additional support for the pig substantially concentrically in a pipeline. Orientation of the scraper enhances scraping effectiveness by slicing through any debris buildup, separating the debris from the inner pipe wall so that it can be pushed out of the pipeline by the pig discs or cups.

Abstract translation: 本发明是用于清洁管道内部的管道猪，管道猪具有纵向猪体，其具有向前和向后的弹性体推进构件，其固定并基本同心地支撑在管道中，推进构件用于移动 猪身体通过流体流动的力通过管道和从猪体径向延伸的多个间隔开的弹性对角定向的刮刀，每个刮刀构件具有半圆形外周边缘，其被配置和尺寸设计成与管道的内壁接合 从而当猪通过管道移动时刮擦和清洁内部管道壁，并且在管道中基本上同心地为猪提供额外的支撑。 刮刀的方向通过切割任何碎片堆积来增加刮削效果，将碎屑与内管壁分离，以便可以通过猪盘或杯子将其推出管道。