Pipe-joining method and system for producing underwater pipelines and underwater-pipeline-laying vessel comprising such a system
    171.
    发明授权
    Pipe-joining method and system for producing underwater pipelines and underwater-pipeline-laying vessel comprising such a system 失效
    包括这种系统的水下管线生产管线接合方法和系统以及水下铺管船

    公开(公告)号:US08523488B2

    公开(公告)日:2013-09-03

    申请号:US12450701

    申请日:2008-04-09

    Abstract: A method of joining pipes to produce an underwater pipeline on a firing line includes supplying the firing line with pipes having previously roughened end portions; welding the end portions of adjacent pipes to form cutbacks, each of which is defined by two end portions, and by an annular weld bead between the two end portions; cleaning, by cryogenic blasting, the outer surface of each cutback; and forming a protective joint coating about each cutback.

    Abstract translation: 在点火线上连接管道以制造水下管线的方法包括:将具有预先粗糙化的末端部分的管道提供给点火线; 焊接相邻管道的端部以形成切口,每个切口由两个端部限定,并且由两个端部之间的环形焊缝形成; 清洗,通过低温喷砂,每个裁剪的外表面; 并形成关于每个削减部分的保护性接合涂层。

    Laying Ramp, Laying Unit Comprising Such a Laying Ramp, and Method of Operating Such a Laying Unit
    173.
    发明申请
    Laying Ramp, Laying Unit Comprising Such a Laying Ramp, and Method of Operating Such a Laying Unit 审中-公开
    铺设斜坡,包括这种铺设斜坡的铺设单元以及操作这种铺设单元的方法

    公开(公告)号:US20130017019A1

    公开(公告)日:2013-01-17

    申请号:US13518690

    申请日:2010-12-23

    CPC classification number: F16L1/225 B63B35/03

    Abstract: A laying ramp for laying a pipeline on the bed of a body of water can include an elongated frame having a first and second end; connecting members connecting the first end of the elongated frame to a vessel; at least one guide device fitted to the elongated frame to guide the pipeline along the elongated frame; and a support assembly, which has at least one undercarriage to roll along the bed of the body of water and support the second end of the elongated frame.

    Abstract translation: 用于将管道铺设在水体床上的铺设斜坡可以包括具有第一和第二端的细长框架; 将细长框架的第一端连接到容器的连接构件; 至少一个引导装置,其装配到细长框架上以沿着细长框架引导管道; 以及支撑组件,其具有至少一个底架,以沿着水体的床滚动并支撑细长框架的第二端。

    Method for forming a protective coat about a cutback between pipes forming part of an underwater pipeline
    174.
    发明授权
    Method for forming a protective coat about a cutback between pipes forming part of an underwater pipeline 失效
    在形成水下管道的一部分的管道之间形成围绕切口的保护涂层的方法

    公开(公告)号:US08287679B2

    公开(公告)日:2012-10-16

    申请号:US12449900

    申请日:2008-02-29

    CPC classification number: B29C63/06 F16L13/0272 F16L58/181

    Abstract: A method of forming a protective coat about a cutback between pipes forming part of an underwater pipeline provides for laying a thermoplastic sheet on a supporting sheet; and winding the thermoplastic sheet and the supporting sheet about the cutback to join the thermoplastic sheet to the cutback.

    Abstract translation: 在形成水下管道的一部分的管道之间形成围绕切口的保护涂层的方法提供了将热塑性片材铺设在支撑片材上; 并且将热塑性片材和支撑片材围绕切口缠绕以将热塑性片材接合到切割部件。

    PROCESS AND APPARATUS FOR RECOVERING AMMONIA FROM A GAS STREAM
    175.
    发明申请
    PROCESS AND APPARATUS FOR RECOVERING AMMONIA FROM A GAS STREAM 有权
    从气体流回收氨的工艺和装置

    公开(公告)号:US20120189528A1

    公开(公告)日:2012-07-26

    申请号:US13387836

    申请日:2010-07-27

    Applicant: Paolo Casara

    Inventor: Paolo Casara

    Abstract: The present invention relates to a process for the recovery of ammonia contained in a gaseous stream, said process comprising the following phases: (a) subjecting the gaseous stream containing ammonia to a washing with an aqueous washing solution having a pH lower than 7.0, with the formation of a purified gaseous stream and an aqueous solution containing an ammonium salt; (b) treating the aqueous solution containing the ammonium salt coming from phase (a) in a vertical falling film heat exchanger at a temperature from 50 to 250° C. and an absolute pressure ranging from 50 KPa to 4 MPa with the formation of a regenerated washing solution and a gaseous stream comprising NH3 and H2O; (c) recycling said regenerated washing solution to phase (a). The present invention also relates to equipment for effecting the above process.

    Abstract translation: 本发明涉及一种用于回收气态物流中所含氨的方法,所述方法包括以下阶段:(a)使含有氨的气流用具有pH低于7.0的水洗涤溶液进行洗涤,用 形成纯化的气流和含有铵盐的水溶液; (b)在垂直降膜式热交换器中,在50〜250℃的温度和绝对压力为50KPa〜4MPa的条件下,将来自相(a)的含有铵盐的水溶液进行处理,形成 再生洗涤溶液和包含NH 3和H 2 O的气流; (c)将所述再生洗涤液再循环到相(a)。 本发明还涉及用于实现上述过程的设备。

    ARC welding torch including a wire guide open on one side and arranged to receive a welding wire from a laterally spaced apart location and method of using same
    176.
    发明授权
    ARC welding torch including a wire guide open on one side and arranged to receive a welding wire from a laterally spaced apart location and method of using same 失效
    ARC焊炬包括一个电线导向器,其一侧开口并且布置成从横向间隔开的位置接收焊丝,并且使用相同的方法

    公开(公告)号:US08106327B2

    公开(公告)日:2012-01-31

    申请号:US11574138

    申请日:2005-08-22

    Abstract: The present invention relates to a welding torch that includes an electrode (3) that has a longitudinal groove (9) formed therein which guides a welding wire (4) which is fed form a laterally spaced-apart location. The electrode (3) is open and the wire (4) is supported on one side only. In the region of the welding tip, the electrode (3) is elongate and the cross-sectional area is smaller than the area at a position further from the tip. Regions between an outer housing (11) and a main support body (2) define two shielding gas conduits positioned on opposite sides of the body (2), through which gas flows and then combines to form a unitary stream. The body (2) contains cooled regions which are supplied with cooling fluid by a conduit (7) and removed by conduit (8), parts of which are positioned between the shielding gas conduits close to the welding electrode (3).

    Abstract translation: 焊枪技术领域本发明涉及一种焊炬,其包括具有形成在其中的纵向槽(9)的电极(3),该纵向槽(9)引导从横向间隔开的位置供给的焊丝(4)。 电极(3)打开,线(4)仅在一侧支撑。 在焊接尖端的区域中,电极(3)是细长的,并且横截面面积小于远离尖端的位置处的面积。 外壳(11)和主支撑体(2)之间的区域限定了位于主体(2)相对侧上的两个保护气体导管,气体通过该导管结合在一起形成整体流。 主体(2)包含冷却区域,冷却区域由导管(7)供应冷却流体,并通过导管(8)去除,其中的一部分位于靠近焊接电极(3)的保护气体导管之间。

    METHOD AND APPARATUS FOR THE WELDING OF PIPES
    177.
    发明申请
    METHOD AND APPARATUS FOR THE WELDING OF PIPES 有权
    管道焊接方法与装置

    公开(公告)号:US20100301103A1

    公开(公告)日:2010-12-02

    申请号:US12864598

    申请日:2009-01-19

    Applicant: Renato Bonelli

    Inventor: Renato Bonelli

    CPC classification number: B23K9/0286 B23K9/0216 B23K2101/10

    Abstract: Two pipes are arranged end to end, the pipes being shaped such that a groove is defined between the ends of the pipe. A plurality of welding torches are used to weld in the groove, such that at least some of the welding torches perform a first welding pass, the welding characteristics of the torches are adjusted and at least some of the welding torches are used to perform a second welding pass. At least one torch welds in a first sector in the first welding pass and a second sector in the second welding pass, the second sector being different to the first. The sectors might overlap or might not overlap.

    Abstract translation: 两个管道端对端地布置,管子被成形为使得在管道的端部之间限定了一个槽。 使用多个焊炬来焊接在槽中,使得至少一些焊炬执行第一焊接通道,调节焊炬的焊接特性,并且使用至少一些焊炬来执行第二焊接 焊接通 在第一焊接通道中的第一扇区中的至少一个割炬焊缝和第二焊道中的第二扇区,第二扇区与第一扇区不同。 这些扇区可能重叠或可能不重叠。

    UNDERSEA PIPE-LAYING
    178.
    发明申请
    UNDERSEA PIPE-LAYING 有权
    地下管线

    公开(公告)号:US20100080657A1

    公开(公告)日:2010-04-01

    申请号:US12530091

    申请日:2008-03-06

    Inventor: Stefano Bianchi

    CPC classification number: B63B35/03

    Abstract: A monohull vessel for laying a pipeline includes tensioners 13 disposed along a Pipelaying path P. The pipelaying path P includes an upstream portion that is substantially horizontal and at least 10 m above the centre of rolling R of the vessel and, towards a stern end of the vessel hull, a downstream portion that is downwardly inclined and, in use, enters the water at a location inboard of the stern end of the vessel hull 1.

    Abstract translation: 用于铺设管道的单体船容器包括沿着Pipelaying路径P设置的张紧器13.管道铺设路径P包括大致水平的上游部分,并且比船的滚动R的中心高至少10米,并且朝向船尾 容器船体,向下倾斜的下游部分,并且在使用中,在船体1的尾端的内侧的位置处进入水中。

    PROCESS FOR THE PRODUCTION OF ALKYL ETHERS BY THE ETHERIFICATION OF ISOBUTENE
    180.
    发明申请
    PROCESS FOR THE PRODUCTION OF ALKYL ETHERS BY THE ETHERIFICATION OF ISOBUTENE 有权
    通过ISOBUTENE进行生产烷基醚的方法

    公开(公告)号:US20090253942A1

    公开(公告)日:2009-10-08

    申请号:US12373730

    申请日:2007-07-12

    CPC classification number: C07C41/06 C07C43/046

    Abstract: Process for the production of alkyl ethers by the etherification of isobutene, contained in C4-C5 hydrocarbon streams, with linear alcohol, in the presence of acid catalysts, comprising the following essential steps: a) feeding the isobutene contained in C4-C5 hydrocarbon cuts, together with one or more streams containing linear alcohol, to a first reaction step; b) sending the stream leaving the first reaction step to a first distillation area, separating a light stream from a heavy stream containing the desired ether; c) feeding the light stream separated in the first distillation area, together with one or more streams containing linear alcohol, to a second reaction step; d) sending the stream leaving the second reaction step to a second distillation area separating a light stream from a heavy stream containing ether, C4 hydrocarbons and alcohol which is recycled to the first distillation area; e) sending the light stream in the second distillation area to a recovery section of the linear alcohol contained therein; f) recycling the linear alcohol recovered in the recovery section to at least one of the two reaction steps. The present invention relates to plant solutions which allow the alcohol/isobutene molar ratio to be increased in the reaction steps and therefore maximizing the conversion of isobutene.

    Abstract translation: 通过在酸性催化剂存在下,用线性醇在C4-C5烃流中醚化异丁烯来生产烷基醚的方法,包括以下必要步骤:a)将包含在C 4 -C 5烃馏分中的异丁烯 与一种或多种含有线性醇的料流一起加到第一反应步骤; b)将离开第一反应步骤的料流送至第一蒸馏区域,从含有所需醚的重质流中分离出轻质物流; c)将在第一蒸馏区域中分离的轻质流与一种或多种含有线性醇的料流一起送入第二反应步骤; d)将离开第二反应步骤的料流送至第二蒸馏区域,该第二蒸馏区域将来自含有醚,C4烃和醇的重质流的轻质流与循环至第一蒸馏区的分离; e)将第二蒸馏区域中的轻质流送入其中所含的直链醇的回收段; f)将回收部分中回收的线性醇再循环到两个反应步骤中的至少一个。 本发明涉及允许反应步骤中醇/异丁烯摩尔比增加并因此使异丁烯转化率最大化的植物溶液。

Patent Agency Ranking