基于烟气监测数据的标准煤耗率计量方法  

Method for Measuring Standard Coal Consumption Rate Based on Monitoring Data of Flue Gas

作　　者：颜正 肖仁杰 黄鹏 龙庆理 张晓林 简朝荣 Yan Zheng;Xiao Renjie;Huang Peng;Long Qingli;Zhang Xiaolin;Jian Chaorong(Chengdu Branch of CHN Energy Science and Technology Research Institute Co.,Ltd.,Chengdu,Sichuan 610073;CHN Energy Chongqing Wanzhou Electric Power Co.,Ltd.,Wanzhou,Chongqing 404199;CHN Energy Anshun Power Generation Co Ltd.,Anshun,Guizhou 562101;CHN Energy Dazhou Power Generation Co Ltd.,Dazhou,Sichuan 635000;CHN Energy Chengdu Jintang Power Generation Co.,Ltd.,Chengdu,Sichuan 610400)

机构地区：[1]国家能源集团科学技术研究院有限公司成都分公司,四川成都610073 [2]国能重庆万州电力有限责任公司,重庆万州404199 [3]国能安顺发电有限公司,贵州安顺562101 [4]国能达州发电有限公司,四川达州635000 [5]国能成都金堂发电有限公司,四川成都610400

出　　处：《能源科技》2023年第4期51-55,共5页Energy Science and Technology

摘　　要：发、供电标准煤耗率是评价燃煤电厂能源利用效率和碳排放强度的重要指标。准确计量标准煤耗率是燃煤电厂节能减碳、控制成本、增加效益的关键手段之一。长期以来,由于煤计量误差较大和煤采样代表性差,造成燃煤电厂标准煤耗计量普遍存在数据波动大、准确性差。为解决该问题,提高燃煤电厂节能管理水平,提出了一种全新的标准煤耗率计量方法。该方法以锅炉烟气排放在线监测系统数据为基础,无须燃煤发热量值,对煤样采集代表性要求不高,可比较准确地计算出标准煤耗率。在1000 MW燃煤机组的应用表明,采用该方法得到了机组瞬态实时标准煤耗值在不同负荷下的变化曲线,且稳定工况下的标准煤耗率平均值与反平衡性能试验测定的标准煤耗率值比较接近,最大偏差小于1%。该方法既可用于燃煤电厂标准煤耗计算,也可用于入炉煤发热量软测量计算、碳排放核算、机组能耗实时在线监测等方面,将对燃煤电厂成本核算、节能对标分析、机组运行优化及碳排放交易等产生积极的影响。The standard coal consumption rate of power generation and supply is an important index to evaluate the efficiency of energy utilization and the carbon emission intensity of coal-fired power plants.Accurate measurement of standard coal consumption rate is one of the key means of energy saving,carbon emission reduction,cost control and benefit increase in coal-fired power plants.The large coal measurement error and the poor coal sampling representativeness for a long time cause significant fluctuation and inadequate accuracy of standard coal consumption measurement data of coal-fired power plants.To solve this problem and improve the energy-saving management level,a new standard coal consumption rate measurement method is proposed.Without the calorific value of coal and with lower representative requirements for the collection of coal samples,the standard coal consumption rate can be accurately calculated by using this method according to the data of online boiler flue gas emission monitoring system.The result of application in a 1,000MW coal-fired unit shows that the transient real-time standard coal consumption curves under different loads is obtained,and under stable conditions,the average value of standard coal consumption rate is close to that measured by anti-balance performance test with the maximum deviation within 1%.This method can not only be used for standard coal consumption calculation of coalfired power plants,but also for soft measurement calculation of calorific value of coal as fired,carbon emission measurement,real-time online monitoring of unit energy consumption,etc.This has a positive influence on cost accounting,energy saving benchmarking analysis,unit operation optimization and carbon emission trading of coal-fired power plants.

关 键 词：燃煤电厂 标准煤耗率 计量方法 燃烧空气 理论干烟气量 正平衡法 反平衡法 发热量 

分 类 号：TM621[电气工程—电力系统及自动化]