Permitting two adjacent pipe lengths to be joined together
    1.
    发明授权
    Permitting two adjacent pipe lengths to be joined together 失效
    允许两个相邻的管道长度连接在一起

    公开(公告)号:US06148864A

    公开(公告)日:2000-11-21

    申请号:US250610

    申请日:1999-02-17

    申请人: Michael Pascoe

    发明人: Michael Pascoe

    摘要: A method for permitting the joining together of two adjacent pipe lengths with adjacent ends curving with substantially the same sense, the method comprising rotating the end of one of the pipe lengths about its axis until it curves in substantially the opposite sense to the curve of the adjacent end of the other pipe length.

    摘要翻译: 一种用于允许两个相邻管段与相邻端部以大致相同的方向弯曲而接合在一起的方法,该方法包括使一段管道的端部围绕其轴线旋转,直到其基本上相反于曲线的曲线 相邻端的另一个管道长度。

    Self-powered pipeline vehicle for carrying out an operation on a
pipeline and method
    3.
    发明授权
    Self-powered pipeline vehicle for carrying out an operation on a pipeline and method 失效
    用于对管道进行操作的自供电管道车辆和方法

    公开(公告)号:US6031371A

    公开(公告)日:2000-02-29

    申请号:US952115

    申请日:1998-03-23

    申请人: Andrew Smart

    发明人: Andrew Smart

    摘要: An in-pipe vehicle for carrying out at least one operation in a pipeline. The vehicle includes a train of modules interlinked by suspension units to allow serpentine movement through pipe bends. The vehicle train has its own internal power supply and drive mechanism in the modules. A detector module determines the presence of a service junction using magnetic field information. A manipulative module allows the vehicle to be temporarily wedged in the pipeline while providing rotational movement to facilitate the desired operation at the junction. This may include drilling and welding of a service pipe to the main using appropriate modules. A remote probe typically containing a magnetic field generator can be used to assist in service junction location by the vehicle.

    摘要翻译: PCT No.PCT / GB96 / 01214 Sec。 371日期:1998年3月23日 102(e)1998年3月23日PCT PCT 1996年5月21日PCT公布。 WO96 / 37727 PCT公开号 日期:1996年11月28日在管道内进行至少一次操作的管道内车辆。 车辆包括由悬挂单元相互连接的模块串,以允许蛇形运动通过管道弯曲。 车辆列车在模块中具有自己的内部电源和驱动机构。 检测器模块使用磁场信息确定存在服务结点。 操纵模块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。 这可能包括使用适当的模块将服务管道钻孔和焊接到主体。 通常包含磁场发生器的远程探头可用于协助车辆的维修接合位置。

    Apparatus for providing an air/fuel mixture to a fully premixed burner
    4.
    发明授权
    Apparatus for providing an air/fuel mixture to a fully premixed burner 失效
    用于向完全预混燃烧器提供空气/燃料混合物的装置

    公开(公告)号:US5997278A

    公开(公告)日:1999-12-07

    申请号:US913544

    申请日:1997-11-20

    摘要: Apparatus provides an air/fuel mixture to a fully premixed burner and comprises means for providing fuel at a variable flow rate to the burner, means for supplying air at a variable flow rate to the fuel to form the mixture, means for sensing aeration of the fuel combustion products and control means for controlling the fuel flow rate in dependence upon a heat output demand and the air flow rate in dependence upon both the fuel flow rate and the sensed aeration in such a way that the air flow rate is sufficient to maintain the aeration at a predetermined value, the controller, in use, maintaining the fuel flow rate at one of a number of predetermined values and the air flow rate at a corresponding one of a number of differing predetermined values, each set of predetermined values being characterized by a constant value of the ratio between successive values.

    摘要翻译: PCT No.PCT / GB96 / 00353 Sec。 371日期:1997年11月20日 102(e)1997年11月20日日期PCT 1996年2月14日PCT PCT。 公开号WO96 / 25628 PCT 日期1996年8月22日设备为完全预混合燃烧器提供空气/燃料混合物,并且包括用于以可变流量向燃烧器提供燃料的装置,用于以可变流量向燃料供应空气以形成混合物的装置 用于感测燃料燃烧产物的曝气和用于根据热输出需求和根据燃料流量和感测通气两者的空气流量来控制燃料流量的控制装置,使得空气流量 足以将曝气保持在预定值,所述控制器在使用中将燃料流量维持在多个预定值中的一个,并且空气流量处于多个不同预定值的对应的一个,每组 预定值的特征在于连续值之间的比率的恒定值。

    Method and apparatus for testing a fluid conduit system for leaks
    7.
    发明授权
    Method and apparatus for testing a fluid conduit system for leaks 失效
    用于测试流体导管系统用于泄漏的方法和装置

    公开(公告)号:US6116082A

    公开(公告)日:2000-09-12

    申请号:US051473

    申请日:1998-05-12

    IPC分类号: G01M3/26 G01M3/28 G01M3/08

    CPC分类号: G01M3/2815

    摘要: A method and apparatus for testing a fluid conduit system for leaks. The apparatus is connected to an isolated section of a domestic fuel gas system which is suspected of leaking. The apparatus determines over recorded time periods the pressure drop in the system as a result of the actual gas leak and subsequently the pressure drop in the system as a result of an actual leak plus the leakage through an introduced artificial and calibrated orifice provided by the apparatus. The data is used in an equation for calculating the actual leakage rate from the system. This method avoids the need to repressurize the system between pressure drop measurements or having to know or assume the volume of the system being tested.

    摘要翻译: PCT No.PCT / GB96 / 02571 Sec。 371日期:1998年5月12日 102(e)日期1998年5月12日PCT 1996年10月17日PCT公布。 公开号WO97 / 14944 日期1997年04月24日用于测试流体导管系统泄漏的方法和装置。 该设备连接到怀疑有泄漏的家用燃气系统的隔离部分。 该装置根据实际的气体泄漏确定系统中的压降,并且随后由于实际泄漏加上由该装置提供的引入的人造和校准孔的泄漏而导致的系统中的压降 。 该数据用于计算系统的实际泄漏率的方程式中。 该方法避免了压力测量之间需要对系统进行再加压,或者必须知道或假定被测系统的体积。

    Method of producing gas hydrate in two or more hydrate forming regions
    8.
    发明授权
    Method of producing gas hydrate in two or more hydrate forming regions 失效
    在两个或多个水合物形成区域生产天然气水合物的方法

    公开(公告)号:US6111155A

    公开(公告)日:2000-08-29

    申请号:US913412

    申请日:1997-10-07

    CPC分类号: C10L3/108 C10L3/06

    摘要: A process for producing natural gas hydrate comprises three states (i), (ii), and (iii). State (i) comprises three pressure vessels (A1, A2, and A3), stage (ii) two pressure vessels (A4 and A5), and stage (iii) the pressure vessel (A6). The conditions of temperature and pressure in the pressure vessels are such that the gas hydrate is formed in the vessels. The formed hydrate is taken off through pipes (e1, e2, e3, e4, e5, and e6) from the pressure vessels to a manifold (34). Chilled water which is both the reactant water and coolant for the process is provided by cooling means (20) and supplied simultaneously to the lower part of each pressure vessel via pipe (22), manifold (32) and pipes (b1, b2, b4, b5, and b6). Natural gas from supply (26) is fed via pipe (30), manifold (32) and pipes (c1, c2, and c3) to nozzles in the lower part of each vessel (A1, A2, and A3) from which nozzles the gas bubbles upwards through the columns of water in vessels (A1, A2, and A3). Unreacted gas is fed from vessels (A1, A2, and A3) to similar nozzles in the vessels (A4 and A5) from which unreacted gas is fed to a nozzle in the vessel (A6) from which the unreacted gas is taken off through pipe (d6). The mean upward superficial velocity of the gas is substantially the same in all three stages.

    摘要翻译: PCT No.PCT / GB97 / 00021 Sec。 371日期1997年10月7日第 102(e)日期1997年10月7日PCT 1997年1月7日PCT PCT。 公开号WO97 / 26494 日期1997年7月24日制造天然气水合物的方法包括三个状态(i),(ii)和(iii)。 (i)包括三个压力容器(A1,A2和A3),阶段(ii)两个压力容器(A4和A5)和阶段(iii)压力容器(A6)。 压力容器中的温度和压力条件使得在容器中形成气体水合物。 所形成的水合物通过管(e1,e2,e3,e4,e5和e6)从压力容器中取出到歧管(34)。 作为过程的反应物水和冷却剂的冷冻水由冷却装置(20)提供,并通过管道(22),歧管(32)和管道(b1,b2,b4)同时供给到各个压力容器的下部 ,b5和b6)。 供应天然气(26)通过管道(30),歧管(32)和管道(c1,c2和c3)供给每个容器(A1,A2和A3)下部的喷嘴,喷嘴 气体向上通过容器(A1,A2和A3)中的水柱。 未经反应的气体从容器(A1,A2和A3)送入容器(A4和A5)中类似的喷嘴,未经反应的气体从容器(A4和A5)送入容器(A6)中的喷嘴,未经反应的气体从管 (d6)。 气体的平均向上表观速度在所有三个阶段基本相同。

    Method and apparatus for installing a replacement pipe
    9.
    发明授权
    Method and apparatus for installing a replacement pipe 失效
    安装更换管道的方法和装置

    公开(公告)号:US6102624A

    公开(公告)日:2000-08-15

    申请号:US854757

    申请日:1997-05-12

    CPC分类号: F16L55/165 F16L1/00

    摘要: A replacement pipe is installed within an existing service pipe (1) by first advancing a sealing means (6,8) along the existing pipe to a position adjacent its junction with a main pipe (2), then deploying the sealing means to seal against the inner surface of the existing pipe) in the example shown, by pumping sealant (10) into the space between the seal body (6) and the pipe (1), and subsequently advancing the replacement pipe along the existing pipe. The space between the two pipes is then filled with sealant and finally the sealing means is opened, in the example shown by withdrawing a guide rod (5) and its collar (7) on which the sealing means was advanced into position.

    摘要翻译: 通过首先使沿着现有管道的密封装置(6,8)前进到与主管(2)的连接处的位置,将替换管安装在现有服务管道(1)内,然后展开密封装置以密封 在现有管道的内表面),通过将密封剂(10)泵送到密封体(6)和管(1)之间的空间中,随后沿着现有管道推进替换管。 然后在两个管之间的空间填充有密封剂,最后密封装置打开,在示例中,通过抽出导向杆(5)和其密封装置前进到其位置的套环(7)来示出。

    Apparatus for measuring a gas value
    10.
    发明授权
    Apparatus for measuring a gas value 有权
    用于测量气体值的设备

    公开(公告)号:US6047589A

    公开(公告)日:2000-04-11

    申请号:US147165

    申请日:1998-12-10

    摘要: An energy meter for measuring parameters of fuel gas. The meter has a gas inlet and outlet and a central tube along which the gas flows from inlet to outlet. Ultra-sound transducers and a control form a system whereby the speed of ultra-sound signals traveling through the gas between the transducers is measured and used in the control to calculate the volume of gas which is passed through the meter. The ultra-sound signals pass through apertures in the walls of chambers containing the transducers. Another ultra-sound transducer in the chamber which is connected to the control acts as an emitter and receiver of ultra-sound signals reflected by reflectors. These signals travel through the fuel gas in the chamber and their attenuation is observed and measured by the control when they are received by the transducer. The measured attenuation is used to derive the calorific value and/or Wobbe index of the gas. The control uses the volume of gas and the calorific value and/or Wobbe index to derive the amount of energy in the gas.

    摘要翻译: PCT No.PCT / GB97 / 01095 Sec。 371 1998年12月10日第 102(e)日期1998年12月10日PCT 1997年4月21日PCT PCT。 出版物WO97 / 40375 PCT 日期1997年10月30日用于测量燃气参数的电能表。 仪表具有气体入口和出口以及气体从入口到出口流过的中心管。 超声换能器和控制器形成一个系统,由此测量传播通过换能器之间的气体的超声信号的速度并用于控制中以计算通过仪表的气体的体积。 超声信号通过包含换能器的室的壁中的孔。 连接到控制器的腔室中的另一个超声换能器用作反射器反射的超声信号的发射器和接收器。 这些信号穿过室内的燃料气体,并且当它们被传感器接收时,它们的衰减被观察和测量。 测量的衰减用于导出气体的发热量和/或沃泊指数。 控制使用气体体积和热值和/或沃泊指数来导出气体中的能量。