基于GB 10184—88标准的锅炉热效率修正方法分析及比较  

The Analysis and Comparison of Boiler Thermal Efficiency Correction Method Based on GB 10184—88 Code

作　　者：李勇[1] 韩为[1] 王艳红[1] 

机构地区：[1]东北电力大学能源与动力工程学院,吉林吉林132012

出　　处：《中国电力》2014年第3期48-54,共7页Electric Power

基　　金：吉林省科技发展计划资助项目(20110409)~~

摘　　要：锅炉热效率是评价机组运行经济性的重要指标。现有的锅炉热效率修正方法,不便于分析某因素变化对锅炉热效率的影响和运行中引起锅炉热效率降低的原因和部位。提出一种结合一阶泰勒公式并采用微分偏差修正锅炉各项损失及锅炉热效率的方法,并与GB 10184—88修正方法进行了比较和分析。通过对某1 025 t/h锅炉2个不同试验工况下锅炉各项损失及锅炉热效率的计算,表明微分偏差修正法修正后的各项损失及锅炉热效率与GB 10184—88修正后的数值差别较小,可以应用于工程实际。The boiler thermal efficiency is an important indicator for economic evaluation of thermal power unit in operation.With the existing boiler thermal efficiency correction method,it is not easy to analyze the influence of certain parameter changes on the boiler thermal efficiency and to figure out the reasons and locations which cause the efficiency decreasing.In this paper,a new correction method based on the differential deviation derived from the first order Taylor formula is proposed to correct various losses and the thermal efficiency of the boiler.The new method is compared with that described in GB 10184-88 Chinese Utility Boiler Performance Test Code.The results of one 1 025-t/h boiler under two testing conditions show that the difference between the two methods is limited,so that,the new method can be applied to engineering practice.

关 键 词：锅炉热效率 修正计算 GB 10184-88标准 经济性诊断 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]