The Leakage Performance of Fluid Pressurized Joints Subjected to Elevated Temperature

在使用加压设备的工业装置中，通常会发生液体泄漏和失控泄漏的情况。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。为了减少逃逸排放和防止灾难性事故，这项拟议的研究计划旨在推动密封技术知识和实践的进步，从而提高全球化工和制造业的可持续性。这将通过向制造商转让技术创新以使他们能够开发更好的密封产品，并通过为设计工程师和最终用户提供有效的设计工具来选择适当的密封问题解决方案来实现。 密封技术的前沿研究主要集中在开发新的密封产品上。目前对逃逸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密封性的需要。压力接头，包括螺栓法兰衬垫、填充填充盒和管子到管板类型，是主要的目标设备，需要符合密封标准，以确保工业设施的长期可靠性和安全性。 带衬垫和不带衬垫的接头必须防止有毒工业化学品泄漏到大气中。如果改进对这些接头在特定条件下的性能的了解，并更好地预测它们的短期和长期行为，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开发在高压和高温下工作的加压接头的分析模型和测试程序，并为终端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.