Anti-balancing efficiency and its uncertainty analysis of boiler burning mixed coal according to ASME and GB standard

HUA Xiaoyu; WANG Ruikun; QIU Lichun; YANG Yang; SHI Haoxun

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Anti-balancing efficiency and its uncertainty analysis of boiler burning mixed coal according to ASME and GB standard

Thermal Power Generation Vol. 45, Issue 3, Pages: 34-40(2016)

更新时间：2025-09-28

- Anti-balancing efficiency and its uncertainty analysis of boiler burning mixed coal according to ASME and GB standard
- 作者机构：
  
  1. 浙江浙能技术研究院有限公司
  2. 华北电力大学能源动力与机械工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2016
- 稿件说明：
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HUA Xiaoyu, WANG Ruikun, QIU Lichun, et al. Anti-balancing efficiency and its uncertainty analysis of boiler burning mixed coal according to ASME and GB standard[J]. Thermal Power Generation, 2016, 45(3): 34-40.
DOI：

HUA Xiaoyu, WANG Ruikun, QIU Lichun, et al. Anti-balancing efficiency and its uncertainty analysis of boiler burning mixed coal according to ASME and GB standard[J]. Thermal Power Generation, 2016, 45(3): 34-40. DOI：

摘要

为确切了解某电厂锅炉及其辅机对混煤掺烧的适应性情况

并为其运行提供经验

在该锅炉上进行了澳大利亚烟煤(澳煤)与国内优混烟煤(优混)的掺烧试验

并根据美国机械工程师协会(ASME)标准和中国国家标准(GB)计算得出了不同掺烧工况下的锅炉反平衡效率;基于影响锅炉效率的7个主要参数

进行了测试结果的不确定度分析。结果表明:在ASME标准下

全烧优混煤和掺烧50%澳煤的锅炉效率分别为93.73%和93.83%;在GB下

全烧优混煤和掺烧50%澳煤的锅炉效率分别为93.10%和93.28%。掺烧澳煤后锅炉效率略有提升

但相差不大。在ASME标准下

全烧优混煤和掺烧50%澳煤的锅炉效率扩展不确定度U95(η)分别为0.210%和0.218%;在GB下

全烧优混煤和掺烧50%澳煤的锅炉效率扩展不确定度U95(η)分别为0.244%和0.256%。锅炉效率不确定度很小

表明锅炉效率测量试验准确度很高。

Abstract

To find out the adaptability of the boiler and its auxiliary equipments in a power plant to coal blending

and provide operational experiences for the future

the Australian coal was mixed and used in a power plant boiler with domestic Youhun coal.The anti-balancing efficiency of the boiler was calculated according to two standards:the American Society of Mechanical Engineers(ASME)standrd and National Standard of China(GB).The uncertainty of the boiler efficiency was also analyzed using the above two standards based on seven main influencing parameters of the boiler efficiency.The results showed that

by ASME standrd

the boiler efficiency was 93.73%and 93.83%respectively for case 1(burning Youhun coal solely)and case 2(m(Australian coal)∶m(Youhun coal)=1∶1).While by GB

the boiler efficiency was93.10% and 93.28%respectively for the case 1and 2.Mixing Australian coal increased the boiler efficiency slightly.By ASME standrd

the uncertainty of the boiler efficiency U95(η)was 0.210% and 0.218%for the case 1and 2.While by GB

the uncertainty of the boiler efficiency U95(η)was 0.244% and 0.256%for the case 1and 2.The uncertainty of the boiler efficiency was very small

suggesting the quality of boiler efficiency measurement was very high.

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