DB43∕T 2061-2021 煤炭分析用马弗炉能耗测试方法(湖南省)

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ICS17.040.30CCSA2043湖南省地方标准DB43/T2061—2021煤炭分析用马弗炉能耗测试方法EnergyconsumptiontestmethodofMufflefurnaceforcoalanalysis2021-05-07发布2021-08-07实施湖南省市场监督管理局发布

1DB43/T2061—2021目次前言························································································································Ⅲ1范围·····················································································································12规范性引用文件······································································································13术语和定义············································································································13.1煤炭分析用马弗炉·····························································································13.2工作空间·········································································································13.3升温单位能耗···································································································13.4恒温单位能耗···································································································14测试条件···············································································································14.1环境条件·········································································································14.2电源条件·········································································································24.3测试设备·········································································································25测试方法···············································································································25.1马弗炉工作状态································································································25.2工作空间的测量································································································35.3中心点温度测量································································································35.4耗电量试验······································································································35.5单位能耗计算方法·····························································································3I

2DB43/T2061—2021II

3DB43/T2061—2021前言本文件按照GB/T1.1—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。III

4DB43/T2061—2021IV

5DB43/T2061—2021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。JJF1376—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Mufflefurnaceforcoalanalysis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workingspace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temperaturerampingspecificenergyconsumption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。3注：单位为千焦每立方分米（kJ/dm）。3.4恒温单位能耗constanttemperaturespecificenergyconsumption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。3注：单位为千焦每立方分米（kJ/dm）。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1m处测得的温度（环1

6DB43/T2061—2021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：80kPa～106kPa；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JJF1376—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。用途：单位能耗测试时间的测量。4.3.4温度计温度测量范围：0℃～50℃最大允许误差：±0.2℃用途：环境温度测量。4.3.5钢卷尺准确度等级：Ⅱ级及以上。用途：马弗炉工作空间几何尺寸测量。5测试方法5.1马弗炉工作状态测试时马弗炉应保持空载，并符合如下要求：a）第一次使用或者长期不用的马弗炉应按制造厂产品说明书的要求进行烘炉；b）确保连接马弗炉正常工作的附件，应按照使用说明书的安装要求完成安装与连接；c）马弗炉的门应保持完全关闭状态；d）将马弗炉置于规定测试环境条件下预置至少2h，使马弗炉内温度与环境温度一致；2

7DB43/T2061—2021e）恒温试验应使马弗炉达到设定温度；升温试验应使马弗炉以最大升温速率升温。5.2工作空间的测量采用钢卷尺，将距离马弗炉工作室壁为各自边长1/10的空间，分为若干易于测量的简单几何形状进行测量，其结果即为马弗炉工作空间，用V表示。5.3中心点温度的测量将温度测量装置的传感器置于马弗炉工作空间的几何中心点进行温度测量，每隔1min测试温度值1次。5.4耗电量试验试验前，将马弗炉在23℃环境温度条件下预置至少2小时，然后升温至250℃进行耗电量试验，试验步骤如下：第一步：马弗炉在工作空间几何中心点实测温度到达250℃，恒温1小时后记录电能表读数E1，2小时后记录电能表读数E2。E2与E1之差即为低温恒温耗电量El。第二步：以最大升温速率升温到950℃，在升温过程中，记录实测温度到达300℃时电能表读数E3，到达900℃时电能表读数E4。E4与E3之差即为升温耗电量Er。第三步：在950℃恒温1小时后记录电能表读数E5，2小时后记录电能表读数E6。E6与E5之差即为高温恒温耗电量Eh。试验过程如图1所示。图1耗电量试验过程5.5单位能耗计算方法5.5.1恒温单位能耗低温恒温单位能耗和高温恒温单位能耗分别按照公式（1）和公式（2）计算。El3600C1……………………………………………………（1）VEh3600C2……………………………………………………（2）V式中：3C1——低温恒温单位能耗，单位为千焦每立方分米（kJ/dm）；3

8DB43/T2061—20213C2——高温恒温单位能耗，单位为千焦每立方分米（kJ/dm）；El——低温恒温耗电量，单位为千焦（kW∙h）；Eh——高温恒温耗电量，单位为千焦（kW∙h）；3V——工作空间，单位为立方分米（dm）。5.5.2升温单位能耗升温单位能耗按照公式（3）计算。Er3600C3……………………………………………………（3）V式中：3C3——升温单位能耗，单位为千焦每立方分米（kJ/dm）；Er——升温耗电量，单位为千焦（kW∙h）；3V——工作空间，单位为立方分米（dm）。4