Quantifying safe operation of sustainable seals for rotating systems

量化旋转系统可持续密封件的安全运行

• 批准号: EP/X030067/1
• 负责人: Nicola Bailey
• 金额: $ 10.45万
• 依托单位: King's College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX030067%2F1
• 关键词: Quantifying; safe; operation; sustainable; seals

Current sealing technology employed in rotating machines, such as aircraft turbine engines, high pressure turbo compressors and wind turbines, are reaching their maximum potential efficiency. Therefore, innovative sealing designs are necessary to meet the industrial demands for next generation machinery that require reduced leakage across the seal, decreased power losses and increased efficiency. Non-contacting gas lubricated mechanical face seals have the potential to provide significant improvements in the sealing performance and meet the increased demand conditions. However, a key challenge is to provide safe and reliable operation under challenging, but feasible operating conditions, including potentially destabilising disturbances. The aim of this proposal is to develop theoretical capabilities to characterise the dynamic behaviour of a non-contacting gas lubricated mechanical face seal, which comprises of two discs; one fixed to a rotating shaft and the other mounted to a stationary housing with a thin fluid film separating the two. This design gives operational advantages over existing seals, including increased efficiency, decreased power losses and reduced costs over its lifetime. However, non-contacting seal technology has been described as unpredictable and unreliable, due to a high number of premature and unexpected experimental failures. By using a mathematical representation of the seal, investigations into the dynamic behaviour will enable understanding into the experimental failures and conditions on safe operation to be identified. Guidelines of sustainable seals will also be developed to provide improved sealing capabilities and performance envelop to ensure reliable and predictable behaviour.

当前在旋转机中采用的密封技术，例如飞机涡轮发动机，高压涡轮压缩机和风力涡轮机，正在达到其最大潜在效率。因此，需要创新的密封设计，以满足需要减少密封泄漏，降低功率损耗和提高效率的下一代机械的工业需求。非接触式气体润滑机械面部密封有可能在密封性能方面显着改善并满足需求条件的增加。但是，一个关键的挑战是在具有挑战性但可行的操作条件下提供安全可靠的操作，包括潜在的稳定骚乱。该提案的目的是开发理论能力来表征非连接气体润滑机械面部密封的动态行为，该封印由两张盘组成。一个固定在旋转轴上，另一个固定在固定的外壳上，用薄的流体膜将两者分开。这种设计具有比现有密封的运营优势，包括提高效率，降低功率损失和降低其一生的成本。但是，由于大量的早产和意外的实验故障，非接触密封技术被描述为不可预测和不可靠。通过使用密封的数学表示，对动态行为的研究将使您可以识别出对安全操作的实验失败和条件的理解。还将制定可持续密封的准则，以提供改进的密封功能和性能信封，以确保可靠和可预测的行为。