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首页> 外文会议>GPA 90th annual convention proceedings: High definition at 90 advancing the midstream vision. >DUAL ENHANCED TUBES FOR LARGE SHELL AND TUBE HEATEXCHANGERS FOR LNG - A MATURE TECHNOLOGY
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DUAL ENHANCED TUBES FOR LARGE SHELL AND TUBE HEATEXCHANGERS FOR LNG - A MATURE TECHNOLOGY

机译：大型外壳和管式换热器的双增强管 LNG的交换器-成熟的技术

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摘要

Extruded low-finned and dual enhanced tubes are an established heat transferrnenhancement technology used since decades in multiple industries such as the heating,rnautomotive, air-conditioning and refrigeration industries as well as the power andrnhydrocarbon industries. Over the last 15 years, Technip and Wieland have collaborated tornqualify dual enhanced tubes with the aim of becoming a hydrocarbon processing industryrnstandard especially for large shell-and-tube heat exchangers for grassroots LNG andrnethylene plants.rnFrom 1996 onward, a joint academia-industry R&D program supported by the EUrnestablished the necessary thermal design information for enhanced horizontal shellsidernnucleate boiling operations for light hydrocarbons, primarily propane. Further workrnpackages concentrated on enhanced tubeside heat transfer and pressure drop performancernin single-phase as well as two-phase / condensation forming a solid basis for compact andrnefficient enhanced heat exchanger designs.rnIndustrial references have been established starting in 2000 for thermosiphon, kettlernreboiler and chilling services in polypropylene, ethylene and LNG plants - first inrndebottlenecking and finally in grassroots applications. The key advantages are:rn1.? Higher overall heat transfer coefficient, compared to conventional technologiesrn2.? Improved process efficiency based on very low temperature approaches,rncompared to conventional technologiesrnThe presentation reviews the whole development and qualification process, thernimplementation of the dual enhanced tubes first in debottlenecking then in grassrootrnapplications. Field test data confirm the industrial suitability of this technology from startuprnwith stable performance over the years in line with the design expectations.rnFurthermore, dedicated preservation guidelines for the whole supply chain from tubernfabrication to start-up confirm proper operation.
机译：挤压成型的低翅片管和双重增强管是一种成熟的传热技术，数十年来一直用于多种行业，例如供热，汽车，空调和制冷行业以及电力和碳氢化合物行业。在过去的15年中，Technip和Wieland合作取消双重增强管的资格，旨在成为烃加工行业的标准，特别是针对基层LNG和乙烯工厂的大型管壳式换热器。从1996年开始，学术界与工业界共同研发由EUrn支持的计划建立了必要的热设计信息，以增强轻质烃（主要是丙烷）的水平壳核沸腾操作。进一步的工作包着眼于增强的管侧传热和压降性能-在单相和两相/冷凝中形成坚实的基础，从而为紧凑而高效的增强型热交换器设计提供了坚实的基础。-从2000年开始为热虹吸管，釜式再沸器和冷冻服务建立了工业参考在聚丙烯，乙烯和LNG工厂中-首先是瓶颈消除，最后是基层应用。主要优点是：与传统技术相比，整体传热系数更高。与传统技术相比，基于极低温度的方法提高了工艺效率。本演讲回顾了整个开发和鉴定过程，首先在去瓶颈处理中应用双重增强管，然后在基层应用中实现了双重增强管。现场测试数据证实了该技术自启动以来的工业适用性，多年来性能稳定，符合设计预期。此外，从管材制造到启动的整个供应链的专用保存准则均能确保正常运行。

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