公开(公告)号：US4649948A

公开(公告)日：1987-03-17

申请号：US671247

申请日：1984-11-14

申请人： James H. Hudson

发明人： James H. Hudson

IPC分类号： F16L41/06 ,  F17D5/02 ,  G01M3/00 ,  G01M3/24 ,  G01M3/04 ,  F16L55/00

CPC分类号： G01M3/243 ,  F16L41/06 ,  F17D5/02 ,  G01M3/005 ,  Y10T137/0452 ,  Y10T137/6123

摘要： A fluid pressure entry tap valve for use with pressurized pipes comprising a Wye device with an on-off valve of the ball type in each of two forks of the Wye. Preferably, one fork is in-line with the stem of the Wye while the other fork is at an angle thereto. The Wye stem is externally threaded for complementary engagement with a pipe saddle structure. The saddle structure is designed for either clamping to the pipe, or for being welded thereto.During use the Wye fork which is straight in-line with the stem has it's ball valve opened so a wet tap drill can be inserted to make an opening into the pipe under pressure. Then after removal of the drill the associated valve is closed. A curved guide directional shoe then is mounted upon the Wye, the valve opened again, and the guide inserted through the Wye into the pressurized pipe. Then the ball valve in the angled other fork of the Wye can be opened and a detector head of leak detector apparatus inserted therethrough into the pipe while still under pressure.The method of installing a Wye device with a pressurized pipe, tapping the pipe while under pressure, inserting a directional guide structure, and then inserting a detector head into the pressurized pipe while still under pressure in the desired direction for detecting leaks therein is also part of this invention.

摘要翻译： 一种与加压管道一起使用的流体压力进入分流阀，其包括在Wye的两个叉中的每一个中具有球型开关阀的Wye装置。 优选地，一个叉与Wye的杆成直线，而另一个叉与其成一角度。 Wye杆是外螺纹，用于与管道鞍式结构互补接合。 鞍座结构设计用于夹紧到管道上，或用于焊接到管道上。 在使用过程中，与阀杆直线的Wye叉子已经开启了球阀，因此可以插入湿式钻头以在压力下打开管道。 然后拆下钻头后，关联的阀门关闭。 然后将弯曲的导向方向靴安装在Wye上，阀再次打开，引导件通过Wye插入加压管中。 然后可以打开Wye的成角度的其他叉中的球阀，并且在仍然处于压力下将泄漏检测器装置的检测器头插入管中。 使用加压管安装Wye装置的方法，在压力下安装管道，插入方向性引导结构，然后在仍然在预期方向上压力以检测泄漏的情况下将检测器头插入加压管道中也是一部分 的本发明。

公开(公告)号：US4485668A

公开(公告)日：1984-12-04

申请号：US431688

申请日：1982-09-30

申请人： James H. Hudson ,  Arthur W. Otto, deceased

发明人： James H. Hudson ,  Arthur W. Otto, deceased

IPC分类号： G01M3/24

CPC分类号： G01M3/246

摘要： A method and apparatus for detecting leaks in pressurized mains comprising input coupling structures spaced along a main, each coupling permitting insertion of a detector head connected to a hose/cable of extended length, a reel and housing holding the hose/cable which is designed to input fluid into the hose and make electrical connections to microphone and transducer structure in the head. Leaks in the main are located by depressurizing the main, inserting the detector head through a coupling, feeding pressurized fluid through the hose into rearwardly projecting jets in the head for effecting travel thereof lengthwise of the main, stopping the fluid flow, again pressurizing the main to effect any leaks, energizing the microphone while slowly retracting the head by winding up the hose/cable on the reel at the input position, listening for leak noise as the head is retracted toward the insertion point, and upon leak noise being heard, stopping the retraction and then energizing the transducer within the head. Signals from the transducer can be detected by an above-ground receiver for pinpointing each leak. After suitably marking each point of leakage, the retraction, listening, stopping, signalling, etc. steps are repeated for each additional leak.

摘要翻译： 一种用于检测加压干燥器中的泄漏的方法和装置，包括沿着主体间隔开的输入耦合结构，每个联接器允许插入连接到延伸长度的软管/电缆的检测器头，保持软管/电缆的卷轴和壳体，其设计成 输入流体进入软管，并与头部的麦克风和传感器结构进行电气连接。 主要的泄漏通过减压主体定位，通过耦合将探测器头插入，将加压流体通过软管输送到头部中的向后突出的射流中，以实现主体的纵向行进，停止流体流动，再次对主体 为了实现任何泄漏，对麦克风通电，同时通过将软管/电缆卷绕在输入位置的卷轴上来缓慢缩回头部，当头部朝向插入点缩回时收听泄漏噪声，并且在听到泄漏噪声时停止 然后使头部内的换能器收回并通电。 来自传感器的信号可以由地面接收器检测，以确定每个泄漏。 在适当地标记每个泄漏点后，每次额外的泄漏都会重复收回，收听，停止，信令等步骤。