Analysis and Comparison to the Correction Method of Boiler Thermal Efficiency Based on GB 10184-88 Codes

doi:10.11930/j.issn.1004-9649.2014.3.48.6

Abstract

Abstract: Boiler thermal efficiency is an important indicator to evaluate the economic efficiency of thermal power unit in operation. When a parameter changes, the existing correction method of boiler thermal efficiency is inconvenient to analyze its influence to the boiler thermal efficiency, and it is also inconvenient to analyze the reason and location which cause the reduction of the boiler thermal efficiency in operation. A new correction method which combined differential deviation method with first order Taylor formula was proposed to revise the various losses and boiler thermal efficiency, and comparison and analysis of correction calculation method were also conducted between the innovative correction method and the Chinese Utility Boiler Performance Test Code GB 10184—88. Taking a 1025 t/h boiler for example, various losses and boiler thermal efficiency were calculated under two different test conditions, The results show that the difference of the losses and boiler thermal efficiency calculated on differential modification method and GB 10184—88 codes is tiny after modification, so this method can be applied into the engineering practice.

Key words: boiler thermal efficiency, correction calculation, GB 10184—88 codes, economic diagnosis

CLC Number:

TM731

LI Yong, HAN Wei, WANG Yan-hong. Analysis and Comparison to the Correction Method of Boiler Thermal Efficiency Based on GB 10184-88 Codes[J]. Electric Power, 2014, 47(3): 48-54.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.3.48.6

https://www.electricpower.com.cn/EN/Y2014/V47/I3/48

References

1 0 卢广宇. 燃用混煤大型锅炉优化运行技术及应用[J].中国电力,2010,43（12）：56-59.
2 LU Guang-yu. Optimization operation technology and its application of large blending coal-fired boiler[J]. Electric Power,2010, 43(12): 56-59.
[1] 周昊,郑立刚,翁安心,等. 火电厂锅炉热效率优化调整软件的开发[J]. 中国电力,2004,37（2）：29-31.
ZHOU Hao, ZHENG Li-gang, WENG An-xin, et al . Development of boiler heat efficiency optimization system[J]. Electric Power,2004, 37(2): 29-31.
[2] 李永华,潘朝红,吕玉坤,等. 发电厂锅炉经济运行研究[J]. 中国电力,2004,37（1）：51-53.
LI Yong-hua, PAN Chao-hong, LV Yu-kun, et al . Study on economical operation of utility boiler [J]. Electric Power, 2004, 37(1): 51-53.
[3] 李勇,卢丽坤,王艳红,等. 不同标准锅炉热效率及其对发电煤耗率的影响[J]. 中国电力,2012,45（7）：34-37.
LI Yong, LU Li-kun, WANG Yan-hong, et al . Boiler heat efficiency by different standards and its influence on gross coal consumption rate [J]. Electric Power, 2012, 45(7): 34-37.
[4] 杨志勇,刘引. 运行条件变化对锅炉效率的修正[J]. 电站系统工程,2004,20（1）：19-20.
YANG Zhi-yong, LIU Yin. Correction for boiler efficiency from variation of operation condition[J]. Power System Engineering,2004, 20(1): 19-20.
[5] 黄伟,李文军,熊蔚立. GB 10184—88和ASME PTC4.1标准锅炉热效率计算方法分析[J]. 湖南电力,2005,25（1）：12-14.
HUANG Wei, LI Wen-jun, XIONG Wei-li. Calculation analysis for the boiler thermal efficiency using GB 10184—88 and ASME PTC4.1 code [J]. Hunan Electric Power, 2005, 25(1): 12-14.
[6] 王祝成,施延洲. GB 10184—88标准中排烟温度修正方法的改进探讨[J]. 锅炉技术,2011,42（5）：56-59.
WANG Zhu-cheng, SHI Yan-zhou. Discussion on improvement of correction method of outgoing gas temperature in GB 10184—88 codes [J]. Boiler Technology, 2011, 42(5): 56-59.
[7] 李勇,王艳红,张炳文. 基于不同标准的锅炉热效率及发电标准煤耗率修正方法[J]. 动力工程学报,2012,32（4）：275-281.
LI Yong, WANG Yan-hong, ZHANG Bing-wen. Correction of boiler thermal efficiency and standard coal consumption rate based on different standards[J]. Journal of Chinese Society of Power Engineering, 2012, 32(4): 275-281.
[8] GB 10184—1988 电站锅炉性能试验规程[S].
GB 10184—1988 Performance test code of utility boiler [S].
[9] 赵振宁,张清峰,赵振宙. 电站锅炉性能试验原理方法及计算[M]. 北京：中国电力出版社,2010：59.
ZHAO Zhen-ning, ZHANG Qing-feng, ZHAO Zhen-zhou. Principle method and calculation of boiler performance test in power station [M]. Beijing: China Electric Power Press, 2010: 59.
[10] 叶江明.电厂锅炉原理及设备[M]. 北京：中国电力出版社,2007：48.
YE Jiang-ming. Boiler principle and equipment of power plant[M]. Beijing：China Electric Power Press, 2007: 48.
[11] 关晓光,蒋贺,宋吉民. 燃煤工业锅炉能效测试方法的改进研究[J]. 东北电力大学学报,2011,31（2）：14-17.
GUAN Xiao-guang, JIANG He, SONG Ji-min. Coal-fired industrial boilers to improve energy efficiency of test methods [J]. Journal of Northeast Dianli University, 2011, 31(2): 14-17.