环境条件对膜式燃气表计量特性影响的讨论  

Discussion on the Influence of Environmental Conditions on the Metrological Characteristics of Diaphragm Gas Meters

作　　者：赵宇 李有书 武鸿雁 童溱 杨伟 ZHAO Yu;LI You-shu;WU Hong-yan;TONG Zhen;YANG Wei(Lijiang Institution of Inspection Testing and Certification)

机构地区：[1]丽江市检验检测认证院

出　　处：《中国标准化》2024年第21期221-225,共5页China Standardization

摘　　要：膜式燃气表是与能源消费公平直接相关的一种广泛使用的燃气计量器具。燃气表的检定受到环境条件的重要影响,温度和湿度的变化会引起内部零件的热胀冷缩,大气压力的变化会导致气体密度和流动性的改变,从而影响到测量误差。本文通过综合分析温度、湿度和大气压力三个环境因素对膜式燃气表计量特性的影响,为提高其准确性提出了一些建议。未来的研究可以进一步探讨不同环境条件下膜式燃气表的检定方法和技术,为其在实际应用中的计量准确性和稳定性提供更多技术支撑。The diaphragm gas meter is a widely used gas measuring instrument directly related to energy consumption equity.The verification of gas meters is greatly influenced by environmental conditions.Changes in temperature and humidity can cause thermal expansion and contraction of the internal components,and changes in atmospheric pressure can lead to changes in gas density and fluidity,which affects measurement errors.This paper comprehensively analyzes the impact of three environmental factors,temperature,humidity,and atmospheric pressure,on the metrological characteristics of diaphragm gas meters,and proposes some suggestions to improve the accuracy.Future research can further discuss the verification methods and technologies of diaphragm gas meters under different environmental conditions,providing more technical support for their accuracy and stability in practical applications.

关 键 词：膜式燃气表 检定 温度 湿度 大气压力 

分 类 号：TU996.7[建筑科学—供热、供燃气、通风及空调工程]