煤炭分析用马弗炉能耗测试方法 Energy consumption test method of Muffle furnace for coal analysis 发 布 湖南省市场监督管理局2021-05发布-07 2021-08实施-0743 DB43/T2061—2021 湖南省地方标准 ICS CCS 17.040.30 A 20 DB43/T 2061—2021 I 目 次 前言 ································ ································ ································ ························ Ⅲ 1 范围 ································ ································ ································ ····················· 1 2 规范性引用文件 ································ ································ ································ ······ 1 3 术语和定义 ································ ································ ································ ············ 1 3.1 煤炭分析用马弗炉 ································ ································ ····························· 1 3.2 工作空间 ································ ································ ································ ········· 1 3.3 升温单位能耗 ································ ································ ································ ··· 1 3.4 恒温单位能耗 ································ ································ ································ ··· 1 4 测试条件 ································ ································ ································ ··············· 1 4.1 环境条件 ································ ································ ································ ········· 1 4.2 电源条件 ································ ································ ································ ········· 2 4.3 测试设备 ································ ································ ································ ········· 2 5 测试方法 ································ ································ ································ ··············· 2 5.1 马弗炉工作状态 ································ ································ ································ 2 5.2 工作空间的测量 ································ ································ ································ 3 5.3 中心点温度测量 ································ ································ ································ 3 5.4 耗电量试验 ································ ································ ································ ······ 3 5.5 单位能耗计算方法 ································ ································ ····························· 3 DB43/T 2061—2021 II DB43/T 2061—2021 III 前 言 本文件按照 GB/T 1.1—2020《标准化工作导则 第1部分：标准化文件的结构和起草规则》的规 定起草。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。 本文件由湖南省市场监督管理局提出并归口。 本文件起草单位：湖南省计量检测研究院、长沙开元仪器有限公司、湖南三德科技股份有限公司、 株洲市计量测试检定所、岳阳市质量计量检验检测中心、长沙友欣仪器制造有限公司、长沙远光瑞翔科 技股份有限公司。 本文件主要起草人：肖珍芳、罗建明、肖小平、何帅、胡彪、李浩锋、周雄、肖幸、曹学军、李明、 谭中柱、钟兰、陈 超、殷世波、胡雅忠、兰双、张蓉、张卫华。 DB43/T 2061—2021 IV DB43/T 2061—2021 1 煤炭分析用马弗炉能耗测试方法 1 范围 本文件规定了煤炭分析用马弗炉单位能耗测试的测试条件和测试方法。 本文件适用于自然气氛（空气） ，额定温度在 100℃～1200℃范围内的煤炭分析用马弗炉的单位能 耗测试。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。 其中， 注日期的引用文件， 仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本 文件。 JJF 1376 —2012 箱式电阻炉校准规范 3 术语与定义 3.1 煤炭分析用马弗炉 Muffle furnace for coal analysis 用于煤炭分析，加热室呈箱式、卧式，具有进出料炉门的间歇式电阻炉。 3.2 工作空间 working space 马弗炉内能将规定的条件维持在规定容差范围内的部分。 3.3 升温单位能耗 temperature ramping specific energy consumption 马弗炉以最大升温速率从 300℃升温到 900℃过程中，单位工作空间所消耗的能量。 注：单位为千焦每立 方分米（ kJ/dm3）。 3.4 恒温单位能耗 constant temperature specific energy consumption 马弗炉恒温过程中，维持单位工作空间温度恒定并保持 1h所消耗的能量。 注：单位为千焦每立方分米（ kJ/dm3）。 4 测试条件 4.1 环境条件 马弗炉测试环境条件应满足： a） 环境温度： 23℃±2℃，环境温度测点处垂直方向的温度梯度不应超过 2℃/m； 注：环境温度（马弗炉周围的空间温度） ，即距马弗炉边壁前、后、左、右、上、下垂直距离 1 m处测得的温度（环 DB43/T 2061—2021 2 境温度不应受到马弗炉出气口温度的影响） 。 b） 相对湿度：≤ 85％； c） 气压：80 kPa～106 kPa； d） 无强对流空气。 4.2 电源条件 马弗炉测试电源条件应满足： a） 交流电压： 220V±6.6V； b） 频率：50Hz±0.5Hz。 4.3 测试设备 4.3.1 电能测量仪表 测量范围：电压、电流测量范围满足试验要求。 电能测量最大允许误差：不超过± 0.5％。 用途：马弗炉消耗有功电能测量。 4.3.2 温度测量装置 技术要求：应符合 JJF 1376 —2012中6.2的规定。 用途：马弗炉工作空间几何中心温度测量。 4.3.3 秒表 日差的最大允许误差：± 0.5s。