Reliable life prediction and design methodology for thermal-mechanical fatigue of coke drums

焦炭塔热机械疲劳的可靠寿命预测和设计方法

• 批准号: 403054-2010
• 负责人: Xia, Zihui
• 金额: $ 5.03万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=529696
• 关键词: Reliable; life; prediction; design; methodology

Coke drums are primary equipment associated with the processing of oil sand bitumen. Damage of coke drums, in the form of bulging deformation or cracking have been reported from time to time. Every year, millions of dollars are spent on repairs and even more (~ $2 million per day) are lost due to interruption of production. Our recently completed work has identified the leading mechanisms to initiation and propagation of damage. The work has also shown a number of further improvement opportunities in the fundamental design methodology of coke drums, including material selection, evaluation of stress/strain history, assessment of thermal-mechanical fatigue lives and operational procedures. In this proposed project we will focus on the development of a more accurate life prediction and reliable design methodology for coke drums. A corresponding design software tool will also be developed for designers, processing and maintenance engineers in the user sectors. The above targets will be reached through well planned and tightly-coupled research activities including acquiring field measurement data, laboratory experiments, numerical simulation and theoretical modeling. Five high quality personnel will be trained through participation in this research project. A more accurate understanding of damage mechanisms and the new design principles will result in constructing more robust new coke drums and in improving management of existing coke drums. As an end-product of the research project, the developed design and analysis software will make our research contributions more easily shared by coke drum fabrication and user communities. It will have commercial application within a high-demand market. Large investments in oil sands continue to occur in Western Canada. The contributions from this proposed research will not only benefit the industrial partners involved, but also extend to a large portion of the Canadian oil industry. It will increase the competence of Canadian companies in the world market, improve the profitability of the Canadian industry, free up labor demands and advance knowledge of the technology.

焦炭塔是与油砂沥青加工相关的主要设备。焦炭塔损坏，表现为鼓胀变形或开裂的情况时有报道。每年，维修费用达数百万美元，因生产中断而造成的损失甚至更多（约每天 200 万美元）。我们最近完成的工作已经确定了损害发生和传播的主要机制。这项工作还展示了焦炭塔基本设计方法的许多进一步改进机会，包括材料选择、应力/应变历史评估、热机械疲劳寿命评估和操作程序。在这个拟议的项目中，我们将重点开发更准确的焦炭塔寿命预测和可靠的设计方法。还将开发相应的设计软件工具，供用户部门的设计人员、加工和维护工程师使用。上述目标将通过精心策划和紧密耦合的研究活动来实现，包括获取现场测量数据、实验室实验、数值模拟和理论建模。通过参与本研究项目，将培养5名高素质人才。对损坏机制和新设计原理的更准确理解将有助于建造更坚固的新焦炭塔并改善现有焦炭塔的管理。作为研究项目的最终产品，开发的设计和分析软件将使我们的研究成果更容易被焦炭塔制造和用户社区共享。它将在高需求市场中获得商业应用。加拿大西部继续出现对油砂的大规模投资。这项拟议研究的贡献不仅将使所涉及的工业合作伙伴受益，而且还将扩展到加拿大石油工业的很大一部分。它将提高加拿大公司在世界市场上的竞争力，提高加拿大工业的盈利能力，释放劳动力需求并提高技术知识。