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JJG（鲁）65-2021 热量表检定装置
简介
JJG（鲁）65-2021
热量表检定装置
Verification Facilities for Heat Meters
2021-12-10实施
2021-12-04发布 目 录 引言..........................................................................................................................................1 1 范围..........................................................................................................................................1 2 引用文献..................................................................................................................................1 3 术语和计量单位......................................................................................................................1 3.1 术语 .....................................................................................................................................1 3.2 计量单位...............................................................................................................................2 4 概述..........................................................................................................................................2 4.1 构造组成...............................................................................................................................2 4.2 工作原理...............................................................................................................................3 5 计量性能要求..........................................................................................................................7 5.1 流量测量范围.......................................................................................................................7 5.2 热量表检定装置准确度.......................................................................................................7 5.3 流体介质温度稳定性...........................................................................................................7 5.4 热水流量标准装置的主标准器...........................................................................................8 5.5 热水流量标准装置的配套仪表...........................................................................................8 5.6 其它配套计量器具...............................................................................................................8 6 通用技术要求..........................................................................................................................9 6.1 外观..................................................................................................................................... 9 6.2 热水流量标准装置密封性...................................................................................................9 6.3 计算与控制软件要求...........................................................................................................9 6.4 安全防护...............................................................................................................................9 6.5 接管内径与直管段要求.....................................................................................................10 6.6 热量表检定装置的基本配置.............................................................................................10 7 计量器具控制........................................................................................................................10 7.1 检定条件.............................................................................................................................10 7.2 检定项目和方法.................................................................................................................10 7.3 检定结果处理.....................................................................................................................21 7.4 检定周期............................................................................................................................21 附录 A 热系数及比焓值公式.................................................................................................22 附录 B 常用流量及流量传感器连接尺寸参照表.................................................................24 附录 C 标准铂电阻温度计计算公式.....................................................................................25 附录 D 检定证书内页格式.....................................................................................................26
JJG（鲁）65-2021
热量表检定装置
Verification Facilities for Heat Meters
2021-12-10实施
2021-12-04发布 目 录 引言..........................................................................................................................................1 1 范围..........................................................................................................................................1 2 引用文献..................................................................................................................................1 3 术语和计量单位......................................................................................................................1 3.1 术语 .....................................................................................................................................1 3.2 计量单位...............................................................................................................................2 4 概述..........................................................................................................................................2 4.1 构造组成...............................................................................................................................2 4.2 工作原理...............................................................................................................................3 5 计量性能要求..........................................................................................................................7 5.1 流量测量范围.......................................................................................................................7 5.2 热量表检定装置准确度.......................................................................................................7 5.3 流体介质温度稳定性...........................................................................................................7 5.4 热水流量标准装置的主标准器...........................................................................................8 5.5 热水流量标准装置的配套仪表...........................................................................................8 5.6 其它配套计量器具...............................................................................................................8 6 通用技术要求..........................................................................................................................9 6.1 外观..................................................................................................................................... 9 6.2 热水流量标准装置密封性...................................................................................................9 6.3 计算与控制软件要求...........................................................................................................9 6.4 安全防护...............................................................................................................................9 6.5 接管内径与直管段要求.....................................................................................................10 6.6 热量表检定装置的基本配置.............................................................................................10 7 计量器具控制........................................................................................................................10 7.1 检定条件.............................................................................................................................10 7.2 检定项目和方法.................................................................................................................10 7.3 检定结果处理.....................................................................................................................21 7.4 检定周期............................................................................................................................21 附录 A 热系数及比焓值公式.................................................................................................22 附录 B 常用流量及流量传感器连接尺寸参照表.................................................................24 附录 C 标准铂电阻温度计计算公式.....................................................................................25 附录 D 检定证书内页格式.....................................................................................................26
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