摘要
在超声波燃气表中可以内置温度传感器获得用气时准确温度,利用获得的温度和超声波燃气表计量测得的燃气工况流量体积进行温度补偿就能得到标况流量体积。收集北方某市燃气居民用户中的30只超声波燃气表近3个月用气进行抄表数据,将每天用气量的工况流量体积和标况流量体积进行统计和对比分析结果显示每天的工况流量体积和标况流量体积之间的差异随着单日用气流量体积的增加而变得明显。综合分析发现,工况流量体积和标况流量体积差别达到约6%。进一步分析发现,工况流量体积和标况流量体积的差别大小与用气时的温度有关,相对更冷的1月和2月两种体积差异更大。因此,燃气公司采用具有温度补偿能力的超声波燃气表对减小输差有重要作用。
Inner temperature sensor designed in ultrasound gas meter can obtain accurate temperature of gas.Then,the standard condition volume can be obtained by compensating the working condition volume of the gas measured by the ultrasonic gas meter with the obtained temperature.After three months of observation,statistical and comparative analysis were made on the standard condition volume and working condition volume of daily gas consumption of 30 ultrasound gas meters,which were used in a city in the north of China.The results show that the difference of the daily working condition volume and the standard condition volume becomes more obvious while the volume of the daily gas consumption increases.Comprehensive analysis shows that the volume difference is about 6%.Further analysis shows that the difference between the gas consumption of working condition volume and that of standard condition volume is related to the temperature when the gas is consumed.The difference is greater in January and February when the weather is colder.Therefore,if the gas company adopts the ultrasonic gas meter,which can measure gas temperature,to measure the gas consumption of residents,the working condition volume can be changed to the standard condition volume.In winter,volume of gas consumption of resident will certainly increase while adopting the standard condition volume measurement.It can make up lost volume for the gas company's transportation difference caused by weather.
出处
《城市燃气》
2020年第2期14-18,共5页
Urban Gas
关键词
超声波燃气表
温度校正
标况流量体积
工况流量体积
ultrasound gas meter
temperature correction
standard condition volume
working condition volume
