2021年热量表配对铂热电阻校准规范.pdf

北 京 市、天 津 市、河 北 省地 方 计 量 技 术 规 范JJF（京、津、冀）XXX 20XX热量表配对铂热电阻校准规范（征求意见稿）本 规 范主 要 起 草 人：参 加 起 草 人：精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 1 页，共 28 页目录精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页，共 28 页文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 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HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3引言为了确保京津冀地区热量表配对铂热电阻的量值溯源的统一、准确、可靠，保证其计量检测有章可循，在充分考虑了技术和经济的合理性前提下，制定了本规范。本规范参照了国家计量技术规范JJF1001 2011通用计量术语及定义、JJF 1059.12012测量不确定度评定与表示以及JJF1071 2010国家计量校准规范编写规则中规定的相关术语、定义和编写规则。本规范采用了JJG229 2010工业铂、铜热电阻检定规程、JJG225-2001热能表检定规程、GB/T 322242015热量表和 JB/T 86221997工业铂电阻技术条件及分度表中规定的相关术语、定义和技术内容。本规范系首次起草。精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页，共 28 页文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 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heat meter 热量表是测量和显示载热液体经热交换设备所吸收（供冷系统）或释放（供热系统）热能量的仪表。3.2 组合式热量表combined heat meter 由流量传感器、计算器和配对铂热电阻等部件组合而成的热量表。3.3 整体式热量表complete heat meter 由流量传感器、计算器和配对铂热电阻等部件组成的不可分解的热量表。3.4 热电阻 resisitance thermometer 由一个或多个感温电阻元件组成，带引线、保护管和接线端子的测温仪器。3.5 配对铂热电阻temperature sensor pair在同一个热量表上，分别用来测量热交换系统的进水和回水温度的一对计量特性一致或相近的铂热电阻。3.6 计算器 calculator 接收来自流量传感器和配对铂热电阻的信号，进行热量计算、储存和显示系统所交换的热量值的部件。3.7温差 temperature difference 热交换系统供水和回水的温度差值。3.8 最小温差minimum temperature difference 精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页，共 28 页文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 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ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3温差的下限值，在此温差下，热量表准确度不应超过误差限。3.9 最大温差maximum temperature difference 温差的上限值，在此温差下，热量表准确度不应超过误差限。3.10温差上限upper limit of the temperature difference 最大允许温差，热量表在此温差和热功率上限内运行不超过最大允许误差。3.11温差下限lower limit of the temperature difference 最小允许温差，热量表在此温差运行不超过最大允许误差。4 概述铂热电阻是热量表常用的温度测量部件，而热量表配对铂热电阻分别安装在热力管线的进水管和回水管处，与计算器配合使用可以测量进水与回水之间的温度差。为了提高分辨率、减小引线电阻对测温精度的影响并兼顾成本控制，一般多采用两线制Pt1000 铂热电阻作为配对铂热电阻，其他的还有Pt100 和 Pt500 等类型的铂热电阻。5 计量特性5.1 组合式热量表的配对铂热电阻和计算器的允许误差5.1.1单支铂热电阻的最大允许误差5.1.2配对铂热电阻温差的最大允许误差E05.1.3计算器温度测量的最大允许误差EJ。5.2 整体式热量表的配对铂热电阻和计算器的最大允许误差E5.2.1计算器显示的单支铂热电阻在各温度点测量的温度值与标准温度计测量的温度值之差的绝对值不应大于1K。5.2.2 配对铂热电阻和计算器温差的最大允许误差0E上述计量特性的具体要求详见表1。表 1 配对铂热电阻和计算器的允许误差要求参数名称技术要求单支铂热电阻的最大允许误差=0.30+0.005t配对铂热电阻温差的最大允许误差E0min00.53%E计算器温度测量的最大允许误差 EGmin0.5%JE配对铂热电阻和计算器温差的最大允许误差0Emin014%E式中：铂热电阻的示值误差，；t 测量温度的绝对值，；E0配对铂热电阻的温差最大允许误差，%；min温差下限，一般为3K；精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 5 页，共 28 页文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3温差，；EG计算器的允许误差，%；0E配对铂热电阻和计算器温差的最大允许误差，%。注：1）对计量特性另有要求的配对铂热电阻和计算器，按有关技术文件规定的要求进行校准。2）以上指标不用于合格性判断，仅供参考。6 通用技术要求6.1 外观6.1 1 铂热电阻各部分装配正确、可靠、无缺陷，外表涂层应牢固，保护管应完整无缺，不得有凹痕、划痕和显著锈蚀；6.1 2 感温元件不得破裂，不得有明显的弯曲现象；6.1 3 每支铂热电阻在保护套管上或铭牌上应有类型代号、标称电阻值、温度范围、准确度等级、安装位置标记、配对标记、制造商名或商标等。6.2 绝缘电阻常温绝缘电阻，热电阻处于温度15 35，相对湿度45%85%的环境时，外壳与引线间的绝缘电阻应不小于100M。7 校准条件7.1 环境条件 a）环境温度：15 35；b）相对湿度：25%RH 75%RH；c）大气压力：80kPa106kPa；d）实验条件应满足电测仪表的说明书要求。7.2 测量标准及其他设备校准时所需的测量标准及其他设备可以从表2 中参考选择，所用的校准装置的测量不确定度不应大于被测仪器误差限的1/3。表 2 校准用测量标准及其他设备序号测量设备名称技术要求用途备注1 标 准 铂 电 阻 温度 计（至 少 两支）二等测量温度的标准器也可使用 其他不确定度满足二等铂电阻温度计和电测设备要求的其他测量标准。2 电测设备（电桥或 可 测 量 电 阻数字多用表）0.005 级及以上等级，测量范围应与标准铂电阻、被测铂热 电 阻 的 电 阻 值 范 围 相 适应,分 辨 力 换 算 成 温 度后 不低于 0.001。扩展不确定度：0.010,k=2测量热电阻和标准铂电阻阻值的仪器精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 6 页，共 28 页文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 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ZZ1Y8U5J1Q33 恒 温 槽温度范围：0 200温度均匀性：不超过 0.01；温度波动性：不超过 0.01。提供恒定温度场至少提供两个不同温度恒温工作区域，应满足被校铂热电阻和标准温度计温度范围和插入深度的要求。4 标准电阻箱小于或等于计算器温度最大允许误差绝对值的1/3。也可使用其他不确定度满足要求的其他测量标准。5 水三相点复现性优于1mK。测量标准铂电阻温度 计的Rtp值无6 绝缘电阻表测 量 范 围：（0 500）M/500V 准确度等级不低于10 级测量绝缘电阻无8 校准项目和校准方法8.1 校准项目外观检查、单支铂热电阻的允许误差、配对铂热电阻和计算器的温差误差和绝缘电阻。表 3 校准项目序号校准项目1 外观检查2 允许误差3 温差误差4 绝缘电阻8.2 校准方法8.2.1准备工作校准前必须先开启电测设备和计算器进行预热，预热时间至少20min或者满足电测设备和计算器使用说明书要求的时间。按使用说明书的要求使恒温槽处于正常工作状态，并保证工作区域的液面处于规定的位置。定期使用水三相点检测标准铂电阻温度计的Rtp 值，应符合稳定性小于8.0mK的要求。标准铂电阻温度计和被校铂热电阻插入恒温槽内深度不应小于300mm，稳定时间不小于15min。铂热电阻在校准中不应带外保护管。接线方式根据线制不同分为二线制、三线制和四线制，连接方法见附录C。8.2.2外观检查目测检查配对铂热电阻的外观是否符合本规范6.1 的要求。8.2.3 校准点的选择精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 7 页，共 28 页文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 ZZ1Y8U5J1Q3文档编码:CB3O8X1H8Y9 HW6Y7Y6I5T1 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