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首页> 外文期刊>World Journal of Nuclear Science and Technology >Development of Diagnostics for High-Temperature High-Pressure Liquid Pb-16Li Applications
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Development of Diagnostics for High-Temperature High-Pressure Liquid Pb-16Li Applications

机译：高温高压液体PB-16LI应用的诊断开发

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Liquid lead-lithium (Pb-16Li) is of primary interest as one of the candidate materials for tritium breeder, neutron multiplier and coolant fluid in liquid metal blanket concepts relevant to fusion power plants. For an effective and reliable operation of such high temperature liquid metal systems, monitoring and control of critical process parameters is essential. However, limited operational experience coupled with high temperature operating conditions and corrosive nature of Pb-16Li severely limited application of commercially available diagnostic tools. This paper illustrates indigenous calibration test facility designs and experimental methods used to develop non-contact configuration level diagnostics using pulse radar level sensor, wetted configuration pressure diagnostics using diaphragm seal type pressure sensor and bulk temperature diagnostics with temperature profiling for high temperature, high pressure liquid Pb and Pb-16Li applications. Calibration check of these sensors was performed using analytical methods, at temperature between 380 style="white-space:nowrap;">°C - 400 style="white-space:nowrap;">°C and pressure upto 1 MPa (g). Reliability and performance validation were achieved through long duration testing of sensors in liquid Pb and liquid Pb-16Li environment for over 1000 hour. Estimated deviation for radar level sensor lies within [ style="white-space:nowrap;">−3.36 mm, +13.64 mm] and the estimated error for pressure sensor lies within 1.1% of calibrated span over the entire test duration. Results obtained and critical observations from these tests are presented in this paper.
机译：液体铅锂（PB-16LI）是初级利益的氚培育者，中子倍增器和冷却剂液中的候选材料之一，其与融合发电厂相关的液态金属毯概念。对于这种高温液态金属系统的有效可靠的操作，临界过程参数的监测和控制是必不可少的。然而，有限的操作经验与高温操作条件相结合，PB-16LI的腐蚀性受到了可商购的诊断工具的严重限制。本文说明了本土校准测试设施设计和实验方法，用于使用脉冲雷达水平传感器开发非接触式配置级别诊断，使用隔膜密封型压力传感器和散装温度诊断，具有温度分析，高压液，高压液体PB和PB-16LI应用程序。使用分析方法进行这些传感器的校准检查，在380 <跨度样式=“空白：nowrap;”>° c - 400 style =“白色空间：nowrap;” c和压力高达1 mpa（g）。通过液体PB和液体PB-16LI环境的传感器长期测试实现可靠性和性能验证，超过1000小时。雷达水平传感器的估计偏差位于[<跨度样式=“空白空间：nowrap;”> - 3.36 mm，+13.64 mm]和压力传感器的估计误差位于校准跨度的1.1％之内整个测试持续时间。本文提出了从这些测试获得的结果和关键观察。

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