一种多点位低温绝热气瓶静态蒸发率测试仪的研发  

Development of Multi-point Static Evaporation Rate Tester for Cryogenic Insulated Cylinders

作　　者：蔡青青 张居光 黄光明 李东晖 曾晖 Cai Qingqing;Zhang Juguang;Huang Guangming;Li Donghui;Zeng Hui(Shenzhen Institute of Special Equipment Inspection and Test,Shenzhen 518000)

机构地区：[1]深圳市特种设备安全检验研究院,深圳518000

出　　处：《中国特种设备安全》2024年第11期71-74,78,共5页China Special Equipment Safety

基　　金：深圳市特种设备安全检验研究院自立科技项目(2023YC01)。

摘　　要：本文介绍一种多点位低温绝热气瓶静态蒸发率测试装置,其测试原理符合GB/T 18443.5—2010《真空绝热深冷设备性能试验方法第5部分:静态蒸发率测量》中流量法的要求。不同之处,该装置同时连接多只气瓶和多个体积流量测量通道,通过一个质量流量计和阀组即时校准,将体积流量向质量流量转化,以实现多只气瓶的静态蒸发率同步测试。经过实际样品测试和不同装置比对,该装置性能可靠、操作便捷且测试结果准确。This article introduces a multi-point static evaporation rate tester for cryogenic insulated cylinders.The testing principles conform to the criteria for the flow measurement method laid out in GB/T 18443.5—2010 Testing method of performance for vacuum insulation cryogenic equipment—Part 5:Static evaporation rate measurement,with the only distinction being the proposed tester simultaneously adjoins multiple cylinders and volumetric flow measurement channels,converting volumetric flow to mass flow through a mass flowmeter and a valve set for instant calibration and synchronous testing of static evaporation rate across multiple cylinders.Testing with actual samples and comparisons made with different devices validated the reliability,operational simplicity and accuracy of the proposed tester.

关 键 词：静态蒸发率 低温绝热气瓶 多点位测试 装置 

分 类 号：X933.4[环境科学与工程—安全科学]