2014年第10期（总第202期）
doi:10. 3969/j. issn. 1009 3230. 2014. 10.003
应用能源技术
燃煤发热量测定中两个重要问题的探讨
昊季玲
（浙江大唐岛沙山发电有限责任公司，浙江宁波315722）
摘要：准确测定煤的发热量，对于电厂的安全生产和经济运行具有重要意义，本文对燃煤发热量测定中两个重要问题进行探讨，一是发热量测定中如何保证煤样燃烧完全，从以下几个方面进行阐述：选择合适的燃烧皿、正确绑接点火丝、特殊煤样的特殊处理等。二是燃煤发热量测定结果准确性检验的问题，本文就如何应用反标苯甲酸以及标准煤样来对燃煤发热量测定准确度的检验方法进行分析，指出使用标准煤样时操作、计算及评判中应注意的问题；指出使用茅甲酸时对苯甲酸的处理、重复测定精密度的确定、硝酸形成热问题的确定、所需重复测定的次数的确定等问题；最后阐述两种不同检验方法间的关系。
关键词：燃煤；发热量测定；然烧完全：准确性；检验
文章编号：1009-3230(2014)100011-04
中图分类号：TK411.5
文献标志码：B
DiscussiononTwoMainIssusesofMeasurement
of theCalorificCapacityof Coal
WU Ji-ling
(Zhejiang Datang Wushashan Power Generation Co., Ltd)
Abstract: It takes a key role to exactly measure the calorific capacity of coal in the means of safety in production and economical operation for a power plant. The thesis discusses two main issues of measurement. One is how to ensure the complete combustion of coal sample, which is elaborated in three aspects selection of an appropriate burming dish, right bordering of the ignition wires, particularly handling of special coal sample and the like. The other is the accuracy examination of the measurement of calorific capacity of coal. The article analyzes how to apply benzoic acid and reference coal sample to the test method of accuracy of measurement. In the next place, it indicates the cautions during the process of operation, calculation and evaluation when standard coal sample is used, and points out the disposure of benzoic acid, the determination of repeatedly measured precision, the identification of nitric acid which releases heat, and as well as of repeated measurement times needed . Eventually the relation between two different tests is stated.
Key words:Coal Combustion; Detemination of Calorific Value; Perfect Combustion; Accuracy; Test
0引言
煤的发热量不仅是一项重要的煤质特性指标，而且也是重要的工程技术指标和经济指标：是
修订日期：2014-0910
收稿日期：201407-25
作者简介：吴季玲（1984-），女，研究方向：燃煤质量检验技
术。
万方数据
进厂商品煤的定价及结算主要依据；是锅炉热平衡、能量平衡计算的参数，是估算锅炉理论燃烧温度和锅炉运行时的配煤燃烧及负荷调节的重要依据；也是电厂主要经济指标—发电（供电）标准煤耗计算依据。因此准确测定煤的发热量，对于电厂的安全生产和经济运行具有重要意义。本文