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首页> 外文会议>Aunual Mary Kay O Connor Process Safety Center International Symposium >Demonstrating the effectiveness of non-metallic riser flange covers for diverting leaks and jet fires using computational fluid dynamics
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Demonstrating the effectiveness of non-metallic riser flange covers for diverting leaks and jet fires using computational fluid dynamics

机译：展示非金属立管法兰盖的有效性，用于使用计算流体动力学转移泄漏和喷射火灾

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摘要

The current oil and gas industry market conditions put greater emphasis of finding cost-effective design solutions while maintaining the same emphasis on process safety. Riser flange covers potentially provide a weight-saving alternative to fire walls between FPSO riser balconies and process modules, but that saving can only be realised if non-metallic materials are employed. Flanges represent the most probable leak point, and the covers are designed to entirely surround the flange and divert any leaks outboard and away from the process equipment. Therefore, any flange cover system has to be capable of resisting and diverting the flow from the largest credible leak. This work demonstrates the application of Computational Fluid Dynamics (CFD) coupled with Finite Element Analysis (FEA) to demonstrate the response of a syntactic phenolic foam and glass reinforced laminate system which combine to provide passive fire protection and thermal insulation. The work outlines a combined analytical approach to demonstrate the effectiveness of this weight-saving system for a high-flow rate gas riser. This paper describes the design of the flange cover and the materials used, the failure case against it was to protect and how that case was simulated, the fluid dynamics of the gas leak within the cover, and the stresses generated within the cover structure.
机译：目前的石油和天然气行业市场条件更加重视寻找具有成本效益的设计解决方案，同时保持对过程安全的同样重点。提升管法兰盖可能在FPSO提升板阳台和工艺模块之间提供减速墙的重量保存替代品，但如果采用非金属材料，才能实现节省。法兰代表最可能的泄漏点，盖子设计用于完全围绕法兰，并将任何泄漏舷外移开并远离工艺设备。因此，任何法兰覆盖系统都必须能够抵抗和转移来自最大可信泄漏的流量。该工作证明了计算流体动力学（CFD）与有限元分析（FEA）相连的应用，以证明句法酚醛泡沫和玻璃增强层压体系的响应，其结合提供无源防火和隔热材料。该工作概述了一种组合的分析方法来证明这种重量速率气体提升机的省重系统的有效性。本文介绍了法兰盖的设计和所用材料，对抗它的故障情况是保护和这种情况的模拟，盖子内的气体泄漏的流体动力学，以及在覆盖结构内产生的应力。

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