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首页> 外文会议>14th international conference amp; exhibition on liquefied natural gas (LNG 14) >CHIKSAN～R LNG MARINE LOADING ARMS ENHANCED FOR APPLICATION IN EXPOSED AREAS
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CHIKSAN～R LNG MARINE LOADING ARMS ENHANCED FOR APPLICATION IN EXPOSED AREAS

机译：应用于暴露区域的CHIKSAN〜R LNG海上装卸臂

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摘要

Shell Global Solutions Int. and FMC Technologies jointly developed an offloading system using a Chiksan® Marine Loading Arm for loading of LNG in exposed areas. A 16-inch diameter Double Counterweighted Loading Arm (‘DCMA-S’ type) has been dynamically analyzed and tested utilizing a purpose-built dynamic analysis tool and test bench. rnThe project, which started in 1999, concentrated on the development of a semiautomated connecting mechanism to assist the operator in making a controlled connection between the Chiksan® hydraulic Quick Connect/Disconnect Coupler (QC/DC) and the Manifold Flange on the LNG Carrier (LNGC) under highly dynamic conditions. rnThe connecting operation consists of crawling the QC/DC to the receiving flange on the LNGC using a constant-tension guide-cable between the base-riser of the Loading Arm and the Manifold on the LNGC. The closer the two flanges come together, the smaller the relative motions. rnConnecting operation tests have been successfully completed in 2002 for motions, which became available from scale 1:50 basin model tests on weathervaning barges with alongside moored LNGC. rnThe Marine Loading Arm enhanced with the newly developed connecting mechanism showed that reliable and safe connections can be made for relative motions between the mating flanges in the range of 4m. For comparison, the conventional Marine Loading Arm will not be connected when the relative motion is more than 0.5m depending on motion frequencies. This enhanced Marine Loading Arm offers the captain of the LNGC a much wider mooring envelope. rnThe new system therefore opens opportunities not only for Floating LNG Export and Re-gasification facilities, but also for more exposed onshore LNG plants and terminals, thus reducing the need for breakwaters and allowing consideration of different sites.
机译：壳牌全球解决方案有限公司。与FMC Technologies联合开发了一种使用Chiksan®船用装载臂的卸载系统，用于在裸露区域装载LNG。直径为16英寸的双配重加载臂（“ DCMA-S”类型）已使用专用的动态分析工具和测试平台进行了动态分析和测试。 rn该项目始于1999年，专注于开发半自动连接机构，以帮助操作员在Chiksan®液压快速连接/断开连接器（QC / DC）和LNG船上的歧管法兰之间进行受控连接（ LNGC）。 rn连接操作包括通过在加载臂的底边和LNGC的歧管之间使用恒定张力的导向电缆将QC / DC爬到LNGC的接收法兰上。两个凸缘靠得越近，相对运动越小。 rn 2002年，针对运动的连接操作测试已成功完成，并且可以从1:50比例风帆驳船与锚定LNGC一起进行的盆地模型测试中获得。 rn借助新开发的连接机构增强的船用装卸臂表明，可以在4m范围内对可靠的法兰之间的相对运动进行可靠而安全的连接。为了进行比较，当相对运动大于0.5m时（取决于运动频率），将不连接常规的船用装卸臂。增强的船用装卸臂为LNGC的船长提供了更宽的系泊空间。 rn因此，新系统不仅为浮动液化天然气出口和再气化设施提供了机会，而且为更多裸露的陆上液化天然气工厂和码头提供了机会，从而减少了防波堤的需求并允许考虑不同的地点。

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