基于流量时间法的冷水水表动态检定装置设计  

Design of dynamic calibration device for cold water meters based on the flow-time method

作　　者：孙伟波 SUN Weibo(Power Company of Electricity Supply Co.,Ltd.,CNPC)

机构地区：[1]中国石油集团电能有限公司供电公司

出　　处：《石油石化节能与计量》2024年第8期76-80,共5页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：传统的水表检定存在效率低和精度受限的问题,为此介绍了一种基于流量时间法的冷水水表动态检定装置,该装置的设计遵循了流量时间法的基本原理和精密的检定原理,同时集成了多项关键技术。在硬件方面,装置采用PLC设计、AD模块和温度传感器,确保了系统的高效稳定运行;软件设计方面,采用了先进的算法来优化数据处理和用户界面。测试结果表明,与传统的启停法相比,流量时间法大幅提高了测试效率,减少了时间消耗(测试耗时从39 min降低到4.5 min),同时保持了较高的测量准确度(最大误差为0.30%)。实验结果验证了装置的有效性,展示了其在冷水水表检定领域的应用潜力。Due to the problems of inefficiency and limited accuracy in traditional water calibration,the design of dynamic calibration device for cold water meters based on the flow-time method has been introduced,which not only follows the basic principle of flow-time method and precise calibration principle,but also integrates multiple key technologies.In terms of the hardware design,the device is used to adopt PLC design,AD module,and temperature sensor,which ensures the efficient and stable operation of system.In terms of software design,the advanced algorithms are adopted to optimize data processing and user interface.The testing show that compared with traditional start and stop methods,the flow-time method has been significantly improved testing efficiency,reduced time consumption(from 39 minutes to 4.5 minutes),and maintained high measurement accuracy(maximum error deviation of 0.30%).Experimental results validate the effectiveness of device and demonstrate its potential application in the field of cold water meter calibration.

关 键 词：冷水水表 动态检定装置 流量时间法 启停法 不确定度 

分 类 号：TH814.2[机械工程—仪器科学与技术]