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    • 2. 发明申请
    • LINING A PIPE
    • 衬管
    • WO1998002293A1
    • 1998-01-22
    • PCT/GB1997001867
    • 1997-07-10
    • BG PLCMUCKLE, DerekSHAH, Zahid
    • BG PLC
    • B29C63/46
    • B29C61/04B29C35/045B29C63/34B29C63/46B29K2023/06B29K2105/24F16L55/1653
    • A method of lining an outer pipe (2) which may be of ferrous metal with a lining pipe (4b) of cross-linked polyethylene initially provided as a precursor lining pipe (4a). The precursor lining pipe (4a) is made by forming an initial pipe of cross-linked polyethylene having an external diameter equal to the internal diameter of the outer pipe (2), then the initial pipe is drawn through a die to form the precursor lining pipe (4a) having an external diameter less than the internal diameter of the outer pipe (2). The polyethylene forming the precursor pipe (4a) is memory material having a material of the outer diameter of the initial pipe to which size outer diameter the precursor pipe (4a) expands automatically when the polyethylene is melted. The precursor pipe (4a) is inserted in the outer pipe (2) and the polyethylene is molten by drawing through the precursor lining pipe (4a) a burner (60) burning fuel gas supplied with combustion air through a hose (58) by which the burner is towed. The hot products of combustion melt the polyethylene causing the precursor lining pipe (4a) to expand automatically into the lining pipe (4b) which is supported, until the polyethylene solidifies on cooling, by gas pressure of a desired predetermined value inside the lining pipe (4b). That gas pressure is derived from the pressure of the gaseous products of combustion which latter pressure may be augmented by the pressure of additional air supplied to the interior of the precursor lining pipe (4a).
    • 最初设置有作为前体衬管(4a)的交联聚乙烯衬里管(4b)的可以是黑色金属的外管(2)的方法。 前体衬管(4a)通过形成具有等于外管(2)内径的外径的交联聚乙烯的初始管制成,然后将初始管通过模具拉制以形成前体衬 管(4a)的外径小于外管(2)的内径。 形成前体管(4a)的聚乙烯是当聚乙烯熔化时具有初始管外径的材料的记忆材料,前体管(4a)的尺寸外径自动膨胀。 前体管(4a)插入到外管(2)中,并且聚乙烯通过前驱衬管(4a)拉出燃烧器(60)而熔化,燃烧器(60)通过软管(58)燃烧供应有燃烧空气的燃气, 燃烧器被拖曳。 燃烧的热的产物使聚乙烯熔化,导致前体衬管(4a)自动膨胀到被支撑的衬管(4b)中,直到聚乙烯在冷却下固化时,通过内衬管内所需预定值的气体压力 图4b)。 该气体压力来自燃烧气体产物的压力,后者的压力可以通过供应到前体衬管(4a)的内部的附加空气的压力来增加。
    • 4. 发明申请
    • ELECTRIC POWER GENERATION SYSTEM INCLUDING FUEL CELLS
    • 包括燃料电池的发电系统
    • WO1998021770A1
    • 1998-05-22
    • PCT/GB1997003023
    • 1997-11-03
    • BG PLCFELLOWS, Richard, Griffith
    • BG PLC
    • H01M08/04
    • H01M8/04097H01M8/04022H01M8/04089H01M8/0625H01M8/2425H01M8/243H01M8/244H01M8/2465H01M8/2484H01M2008/1293H01M2008/147H01M2300/0051H01M2300/0074Y02E60/526
    • In an electric power generation system (2), there is a cross-flow stack (4) of fuel cells (6) each having an anode, electrolyte, and a cathode. Associated with the anodes are anode passages which in each cell are divided into a first group formed by anode passages (28a) and a second group formed by anode passages (28b). Fuel gas, for example methane from a supply (26) is fed via path (34) to an inlet manifold (38a) to the anode passages (28a), and a portion of anode exhaust gas from the anode passages (28a) is fed via an exhaust outlet manifold (40a) and lines (42, 46) to an inlet manifold (38b) feeding the anode passages (28b). A reforming reaction takes place in the anode passages (28a and 28b). The other part of the anode exhaust gas from the exhaust manifold (40a) is fed via lines (42 and 44) to the line (34) to mix with the fuel gas. Atmospheric air provides the oxidising gas supplied on line (18) to the cathodes. That oxidising gas is heated in a heating arrangement (21) in which anode exhaust gas from the anode passages (28b), and supplied on line (50), is burnt.
    • 在发电系统(2)中,存在具有阳极,电解质和阴极的燃料电池(6)的交叉流堆叠(4)。 与阳极相关联的是阳极通道,其在每个电池中分为由阳极通道(28a)形成的第一组和由阳极通道(28b)形成的第二组。 燃料气体,例如来自供应源(26)的甲烷通过路径(34)被供给到阳极通道(28a)的入口歧管(38a),并且来自阳极通道(28a)的阳极废气的一部分被进料 通过排气出口歧管(40a)和管线(42,46)连接到供给阳极通道(28b)的入口歧管(38b)。 在阳极通路(28a和28b)中发生重整反应。 来自排气歧管(40a)的阳极废气的另一部分经由管线(42和44)供给管线(34)以与燃料气体混合。 大气空气将在线(18)提供的氧化气体提供给阴极。 在来自阳极通路(28b)的阳极废气(在管线(50)上)供给的加热装置(21)中,氧化气被加热。
    • 5. 发明申请
    • LIQUID METERING
    • 液体计量
    • WO1997038286A1
    • 1997-10-16
    • PCT/GB1997000901
    • 1997-04-01
    • BG PLC
    • BG PLCROBERTS, Graham, RichardCOLE, Andrew, JonathanPRICE, Barry, Leonard
    • G01F01/68
    • G01F1/684
    • A meter (2) to measure the volumetric flow rate of a liquid, for example water, is formed with a pipe (4) forming a liquid flow path containing a low power electrical heater (12). A temperature sensor (19) measures the temperature T1 of the liquid adjacent to an upstream end of the heater and a temperature sensor (20) measures the temperature T2 of the liquid adjacent to a downstream end of the heater. The heater (12) adds heat power of a value P to the liquid. A control arrangement (18) comprising computer means calculates the flow rate Q using the expression (a) where ST1 and DT1 are respectively the specific heat capacity of the liquid and the density of the liquid at the temperature T1 measured by the sensor (19).
    • 用形成包含低功率电加热器(12)的液体流路的管道(4)形成用于测量液体(例如水)的体积流量的仪表(2)。 温度传感器(19)测量与加热器的上游端相邻的液体的温度T1,温度传感器(20)测量与加热器的下游端相邻的液体的温度T2。 加热器(12)将值P的热功率加到液体中。 包括计算机装置的控制装置(18)使用以下表达式(a)计算流量Q,其中ST1和DT1分别是液体的比热容和由传感器(19)测量的温度T1下的液体密度, 。
    • 7. 发明授权
    • Method and apparatus for testing a fluid conduit system for leaks
    • 用于测试流体导管系统用于泄漏的方法和装置
    • US6116082A
    • 2000-09-12
    • US051473
    • 1998-05-12
    • Russell Desmond Pride
    • Russell Desmond Pride
    • G01M3/26G01M3/28G01M3/08
    • G01M3/2815
    • 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.
    • 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。
    • 8. 发明授权
    • Method of producing gas hydrate in two or more hydrate forming regions
    • 在两个或多个水合物形成区域生产天然气水合物的方法
    • US6111155A
    • 2000-08-29
    • US913412
    • 1997-10-07
    • Andrew Richard WilliamsTrevor Smith
    • Andrew Richard WilliamsTrevor Smith
    • B01F3/04B01J19/00C10L3/00C10L3/06C07C7/20
    • C10L3/108C10L3/06
    • 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.
    • 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。
    • 9. 发明授权
    • Method and apparatus for installing a replacement pipe
    • 安装更换管道的方法和装置
    • US6102624A
    • 2000-08-15
    • US854757
    • 1997-05-12
    • Stephen Robert Delaforce
    • Stephen Robert Delaforce
    • F16L55/10F16L1/00F16L55/16F16L55/165
    • F16L55/165F16L1/00
    • 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.
    • 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。
    • 10. 发明授权
    • Apparatus for measuring a gas value
    • 用于测量气体值的设备
    • US6047589A
    • 2000-04-11
    • US147165
    • 1998-12-10
    • Paul Stephen HammondGeoffrey John ParkinsonRobert Richard Thurston
    • Paul Stephen HammondGeoffrey John ParkinsonRobert Richard Thurston
    • G01F1/66G01K11/24G01N29/00G01N29/02G01N29/024G01N29/032G01N29/036G01N29/32G01N29/34G01N33/22G01I9/00
    • G01N29/348G01K11/24G01N29/024G01N29/032G01N29/323G01N29/326G01N33/225G01N2291/02836G01N2291/02881
    • 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.
    • 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。