The Leakage Performance of Fluid Pressurized Joints Subjected to Elevated Temperature

流体的泄漏和不受控制的逸出通常在使用加压设备的工业装置中经常发生。当泄漏超过可接受的限度时，它们可能会导致事故，环境破坏和健康问题，并导致关闭和收入损失。为了减少无组织排放和防止灾难性事件，这项拟议的研究计划旨在提高密封技术知识和实践的进步，从而提高全球化学和制造业的可持续性。这将通过向制造商转让技术创新来实现，使他们能够开发出更好的密封产品，并为设计工程师和最终用户提供有效的设计工具，以选择适当的密封问题解决方案。密封技术的前沿研究主要集中在开发新的密封产品上。 目前对无组织排放的严格规定产生了开发工具来验证结构完整性和预测密封紧密性的需求。压力接头包括螺栓法兰垫片、填料函和管对管接头类型，是需要符合密封标准的主要目标设备，以确保工业装置的长期可靠性和安全性。*密封和非密封接头必须防止有毒工业化学品泄漏到大气中。如果能够更好地了解这些接头在特定条件下的性能，并且能够更好地预测其短期和长期行为，则可以大大减少通过这些接头的泄漏。这可以通过测试和模拟来实现。 拟议的基础研究的目的是为在高压和高温下工作的加压接头开发分析模型和测试程序，并为最终用户应用中持续存在的问题提供有效的密封解决方案。

Leakage and uncontrolled escape of fluids in general are regular occurrences in industrial installations that use pressurized equipment. When leaks exceed acceptable limits, they can cause accidents, environmental damage and health issues, and lead to shutdowns and loss of revenue. With the aim of reducing fugitive emissions and prevent catastrophic incidents, this proposed research program is designed to yield advances in sealing technology knowledge and practice and thereby improve the sustainability of chemical and manufacturing industries worldwide. This will be achieved through the transfer of technological innovation to manufacturers to enable them develop better sealing products and by providing design engineers and end-users with efficient design tools for selecting appropriate solutions to sealing problems.***The cutting-edge research in sealing technology is focused essentially on developing new sealing products. Current strict regulations on fugitive emission have created a need to develop tools to verify structural integrity and predict seal tightness. Pressurized joints including bolted flanged gasketed, packed stuffing box and tube-to-tubesheet types are the main targeted equipment requiring compliance with sealing standards in order to ensure the long-term reliability and safety of industrial installations.***Gasketed and non-gasketed joints must safeguard against the leakage of toxic industrial chemicals into the atmosphere. Leakage through these joints could be reduced substantially if knowledge of how they perform under specific conditions were improved and their short-term and long-term behaviours were more predictable. This could be achievable through testing and simulation. The aim of the proposed fundamental research is to develop analytical models and testing procedures for pressurized joints working under high pressures and high temperatures and provide effective sealing solutions to problems that persist in end-user applications.**