标题： IB3A氦气回收系统 显示英文标题

标题： Helium recovery system at IB3A

摘要： 随着费米实验室对可持续低温操作的需求不断增长，改进氦气管理的必要性变得更加突出，尤其是在工业建筑3A（IB3A）测试设施中。 IB3A对超导体、电缆和线圈进行表征和测试，例如高亮度大型强子对撞机先进升级项目（HL-LHC AUP）和Mu2e项目，但目前依赖于500升杜瓦瓶，其蒸发气体直接排放到大气中，浪费了关键的不可再生资源并增加了测试成本。 因此，一个项目正在实施，通过专用管道将IB3A与相邻建筑中的现有纯化和液化站连接起来。 捕获的氦气将被输送、纯化、重新液化并返回以供重复使用，从而减少损失和运营成本。 本文详细介绍了项目的前两个阶段：“设计与工程”和“采购与安装”。 设计阶段确定管道规格，建立流量控制要求，并解决与现有低温基础设施的集成挑战。 采购与安装阶段涵盖材料采购、管道建设以及控制和监控系统的部署，以确保可靠高效的运行。 在讨论关键的技术难题——路线优化、压力降缓解和接口兼容性的同时，也介绍了所实施的解决方案。 实施管道并升级IB3A将大幅减少氦气消耗，从而降低测试成本，增强费米实验室在未来支持前沿科学的能力。 显示英文摘要

摘要： The growing demand for sustainable cryogenic operations at Fermilab has underscored the need to improve helium management, particularly at the Industrial Building 3A (IB3A) test facility. IB3A characterizes and tests superconductors, cables, and coils for projects such as the HL-LHC AUP and Mu2e, yet currently relies on 500 L Dewars whose boil-off is vented to atmosphere, wasting a critical, non-renewable resource and increasing the cost of testing. A project is therefore under way to link IB3A to an existing purification and liquefaction station in a neighboring building through a dedicated pipeline. Captured helium will be transferred, purified, reliquefied, and returned for reuse, cutting losses and operating costs. This paper details the first two project phases: "Design and Engineering" and "Procurement and Installation." The design phase finalizes pipeline specifications, establishes flow-control requirements, and resolves integration challenges with existing cryogenic infrastructure. The procurement and installation phase covers material sourcing, pipeline construction, and deployment of control and monitoring systems to assure reliable, efficient operation. Key technical hurdles-route optimization, pressure drop mitigation, and interface compatibility-are discussed alongside implemented solutions. Implementing the pipeline and upgrading IB3A will dramatically reduce helium consumption and therefore testing cost, strengthening Fermilab's capacity to support frontier science far into the future.