公开(公告)号：US06107795A

公开(公告)日：2000-08-22

申请号：US115902

申请日：1998-07-15

申请人： Andrew Smart

发明人： Andrew Smart

IPC分类号： B61B13/10 ,  B62D57/024 ,  F16L55/26 ,  F16L55/28 ,  F16L55/32 ,  G01N27/82 ,  G01N27/90 ,  G01V3/15 ,  G01V3/26 ,  F16L55/18 ,  G01B7/00 ,  G01N27/72

CPC分类号： G01V3/26 ,  F16L55/28 ,  G01N27/82 ,  G01N27/902 ,  G01V3/15 ,  F16L2101/30

摘要： An in-pipe vehicle for carrying out at least one operation in a pipeline. The vehicle comprises a train of modules 11-16 interlinked by suspension units 17 to allow serpentine movement through pipe bends. The vehicle train has its own internal power supply and drive mechanism in respective modules. A detector module 14 determines the presence of a service junction and a manipulative module 13 allows the vehicle to be temporarily wedged in the pipeline whilst providing rotational movement to facilitate the desired operation at the junction. This can include drilling and welding of a service pipe to the main using appropriate modules.

摘要翻译： 用于在管道中执行至少一个操作的管道内车辆。 车辆包括由悬挂单元17互连的模块11-16，以允许蛇形运动通过管道弯曲。 车辆列车在各自的模块中具有自己的内部电源和驱动机构。 检测器模块14确定服务接点的存在，并且操纵模块13允许车辆临时楔入管道中，同时提供旋转运动以促进在接合处的期望操作。 这可以包括使用适当的模块对服务管道进行钻井和焊接。

公开(公告)号：US5936156A

公开(公告)日：1999-08-10

申请号：US832562

申请日：1997-04-02

申请人： Graham Richard Roberts ,  Andrew Jonathan Cole ,  Barry Leonard Price

发明人： Graham Richard Roberts ,  Andrew Jonathan Cole ,  Barry Leonard Price

IPC分类号： G01F1/696 ,  G01F1/68 ,  G01F1/684

CPC分类号： G01F1/684

摘要： A meter to measure the volumetric flow rate of a liquid, for example water, is formed with a pipe forming a liquid flow path containing a low power electrical heater. A first temperature sensor measures the temperature T of the liquid adjacent to an upstream end of the heater and a second temperature sensor measures the temperature T.sub.2 of the liquid adjacent to a downstream end of the heater. The heater adds heat power of a value P to the liquid. A control arrangement comprising a computer means calculates the flow rate Q using the expression ##EQU1## where ST.sub.1 and DT.sub.1 are respectively the specific heat capacity of the liquid and the density of the liquid at the temperature T.sub.1 measured by the first sensor.

摘要翻译： 用形成含有低功率电加热器的液体流路的管形成用于测量液体（例如水）的体积流量的仪表。 第一温度传感器测量与加热器的上游端相邻的液体的温度T，第二温度传感器测量与加热器的下游端相邻的液体的温度T2。 加热器将值P的热功率加到液体中。 包括计算机装置的控制装置使用其中ST1和DT1分别是液体的比热容和由第一传感器测量的温度T1下的液体的密度的表达式来计算流量Q。

公开(公告)号：US5820299A

公开(公告)日：1998-10-13

申请号：US564095

申请日：1996-03-22

申请人： John Muirhead Anderson

发明人： John Muirhead Anderson

IPC分类号： F16L1/24 ,  E02B3/12

CPC分类号： F16L1/24

摘要： Each module includes a tubular member filled with filling material, such as concrete, and a tube located in the filling material and extending longitudinally of the tubular member. Tubes or holes extend transversely through the tubular member and the filling material. The longitudinal tube facilitates connection of the module in end-to-end relationship with the modules using connecting mechanisms. The transverse tubes or holes facilitate securing the module to one or more like modules in side-by-side relationship using securing mechanisms. The modules may be assembled together so as to form, for example, a pipeline stabilizing and protection mat to ballast and protect underwater pipelines.

摘要翻译： PCT No.PCT / GB94 / 01283第 371日期：1996年3月22日 102（e）1996年3月22日PCT 1994年6月14日PCT公布。 公开号WO94 / 29624 PCT 日期1994年12月22日每个模块包括填充有填充材料（例如混凝土）的管状构件和位于填充材料中并沿管状构件纵向延伸的管。 管或孔横向延伸穿过管状构件和填充材料。 纵向管有助于使用连接机构将模块与模块的端对端关系连接。 横向管或孔有助于使用固定机构将模块以并排关系固定到一个或多个相似模块。 模块可以组装在一起，以形成例如管道稳定和保护垫以压载和保护水下管道。

公开(公告)号：USD391319S

公开(公告)日：1998-02-24

申请号：US61446

申请日：1996-10-23

申请人： Marc Andrew Bond

设计人： Marc Andrew Bond

公开(公告)号：US5699154A

公开(公告)日：1997-12-16

申请号：US605436

申请日：1996-02-22

申请人： Dudley Trevor Dickson ,  Mohammed Yunis Aziz

发明人： Dudley Trevor Dickson ,  Mohammed Yunis Aziz

IPC分类号： F16L55/00 ,  F16L1/00 ,  F16L55/162 ,  F16L55/28 ,  G01N21/00

CPC分类号： F16L55/28 ,  F16L55/162

摘要： Sensor apparatus 18 for use in a plastic service pipe 16 inside a steel service pipe 10 connected to a main consists of a flexible element 42 which is fed through the steel pipe 10 and through the plastic pipe 16. The element 42 has at its remote end two light-emitting diodes 80 and two photoconductive cells 82 The flexible element 42 and the pipe 16 are fed together into the steel pipe 10. The sensor apparatus 18 indicates when the cells 82 have entered the main 14 because the intensity of the light reflected to the cells 82 falls to a low value and gives an audible or visual signal. This also indicates that the end of the plastic pipe 16 which carries a seal 38 is positioned correctly and that sealant 30 can be injected into the space between the steel pipe 10 and the plastic pipe 16 and is detected by a second light sensor arrangement 154/156. After the sealant 30 has been injected the sensor apparatus 18 can be recovered by withdrawal through the nose-piece 32 and through the pipe 10.

摘要翻译： 用于与主要连接的钢制服务管10内的塑料管道16中的传感器装置18由通过钢管10供给并通过塑料管16的柔性元件42组成。元件42在其远端 两个发光二极管80和两个感光单元82将柔性元件42和管16一起馈送到钢管10.传感器装置18指示电池82何时进入主14，因为光的强度反射到 单元82降到较低的值并给出可听或视觉信号。 这也表示承载密封件38的塑料管16的端部正确定位，并且密封剂30可以被注入到钢管10和塑料管16之间的空间中，并且被第二光传感器装置154 / 156。 在注入密封剂30之后，可以通过鼻片32的抽出和通过管10回收传感器装置18。

公开(公告)号：USD386541S

公开(公告)日：1997-11-18

申请号：US039324

申请日：1995-05-24

申请人： Marc Andrew Bond

设计人： Marc Andrew Bond

公开(公告)号：US5677500A

公开(公告)日：1997-10-14

申请号：US516925

申请日：1995-08-18

申请人： Robert Ackerley ,  Anthony David Raybould

发明人： Robert Ackerley ,  Anthony David Raybould

IPC分类号： F16K37/00 ,  F17D1/075 ,  G05D16/20 ,  F17D1/04

CPC分类号： G05D16/2033 ,  F16K37/0091 ,  F17D1/075 ,  G05D16/204

摘要： A fluid pressure reduction system includes two streams, each stream having pressure regulators 19 & 20, 32 & 33. Isolation slam shuts 16 and 30 are provided in respective streams. A sequence tester 40 allows a sequence of test operations to be effected such that the slam shuts can be opened and closed and the working pressure settings to the regulators can be changed to check system integrity. These tests can be effected without interrupting the supply of gas through the system. It is also possible to carry out the sequence from another location.

摘要翻译： 流体减压系统包括两个流，每个流具有压力调节器19和20,32和33.在相应的流中设置隔离开关16和30。 顺序测试器40允许进行一系列测试操作，使得可以打开和关闭大灯关闭，并且可以改变调节器的工作压力设​​置以检查系统完整性。 这些测试可以在不中断通过系统的气体供应的情况下进行。 也可以从另一个位置执行序列。

公开(公告)号：US5610323A

公开(公告)日：1997-03-11

申请号：US613585

申请日：1996-03-12

申请人： Roger P. Ashworth

发明人： Roger P. Ashworth

IPC分类号： G01M3/00 ,  G01M3/26 ,  G01M3/28

CPC分类号： G01M3/2815

摘要： Air is passed under pressure into a pipe under test and into a reference chamber connected to the pipe by a valve while recording at intervals of every few seconds the temperature in the reference chamber, the temperature in the pipe and the absolute pressure in the reference chamber. When the test pressure has been reached the valve is closed and the differential pressure between the pipe and the reference chamber is measured. The valve is opened to equalize the pressure and then closed again and the differential pressure drift rate is measured. This is repeated several times. A computer is used to calculate a creep prediction curve. A comparison is made to see whether the pressure drift rate due to creep and leak only in the pipe independent of any temperature change in the pipe is trending towards crossing the curve or not.

摘要翻译： 空气在压力下通入阀门进入连接到管道的参考室，并以每隔几秒的间隔记录参考室中的温度，管道中的温度和参考室中的绝对压力 。 当达到测试压力时，关闭阀门，并测量管道和参考室之间的压差。 打开阀门以均衡压力，然后再次关闭，并测量差压漂移率。 这是重复几次。 计算机用于计算蠕变预测曲线。 比较是否管道中随蠕变和泄漏​​而产生的压力漂移速率是否随着管道中的任何温度变化而趋向于跨越曲线。

公开(公告)号：US5554934A

公开(公告)日：1996-09-10

申请号：US438927

申请日：1995-05-10

申请人： Peter Ward ,  Peter Dowson ,  John Wilkinson

发明人： Peter Ward ,  Peter Dowson ,  John Wilkinson

IPC分类号： G01V3/06 ,  G01V3/11 ,  G01V3/15 ,  G01V3/165

CPC分类号： G01V3/06 ,  G01V3/15

摘要： After having used a known locator and a known transmitter of an electromagnetic field to find the general line of an element such as a pipe 14, the transmitter is kept activated and a probe is used having a linear coil 32 on its tip 30 which lies with its axis parallel to the length of the tip. The probe includes a display and the probe is inserted in the ground and rocked to and fro to determine when the coil is in a minimum current condition. The probe is inserted further and the same procedure repeated. Eventually the probe contacts the pipe and lies in a radial plane with respect to the pipe.

摘要翻译： 在使用已知的定位器和已知的电磁场发射器来找到诸如管道14的元件的总线之后，发射器被保持激活，并且使用探针，其顶端30上具有线性线圈32， 其轴线平行于尖端的长度。 探头包括显示器，探头插入地面并来回摇晃，以确定线圈何时处于最小电流状态。 探针进一步插入，重复相同的过程。 最终，探头接触管道并且位于相对于管道的径向平面中。

公开(公告)号：US5552640A

公开(公告)日：1996-09-03

申请号：US296912

申请日：1994-08-31

申请人： Jeffrey A. Sutton ,  Iain J. Tebbutt

发明人： Jeffrey A. Sutton ,  Iain J. Tebbutt

IPC分类号： H02P9/04 ,  F02N11/06

CPC分类号： H02P9/04 ,  Y02E20/14

摘要： An electrical power generating arrangement (for example, in a combined heat and (CHP) system in is which fixed frequency AC electric power for supply to the mains or grid is output from a frequency converter supplied with a variable frequency AC power input from an electrical generator driven by an internal combustion engine. The speed of the engine is varied by operation of a throttle controlled by a controller containing a predetermined engine map representing variation of engine speed as a function of the variation in electrical power output from the frequency converter to meet the demand of an external electrical load. On the load demand changing, the controller signals the frequency converter to give a changed new power output to meet the changed demand. The controller consults the map to determine the new engine speed corresponding to the new power demand and operates the throttle to cause the engine to run at the new speed.

摘要翻译： 发电装置（例如，在热电联供系统中，（CHP）系统）是从供电到电网或电网的固定频率交流电力从提供有来自电气的可变频率AC电力输入的变频器输出 由内燃机驱动的发动机的速度通过由包含预定的发动机曲线图的控制器控制的节气门的操作而变化，所述预定发动机曲线表示作为从变频器输出的电力变化的函数的发动机转速的变化以满足 外部电气负载的需求在负载需求变化时，控制器向变频器发出信号，发出变化的新功率输出以满足变化的需求，控制器查询地图，确定与新电力需求对应的新发动机转速 并操作油门以使发动机以新的速度运行。