w火焰锅炉燃烧优化与改造技术研究和工程应用-中国电机工程学报.pdf

第36 卷 第22 期 中 国 电 机 工 程 学 报 Vol.36 No.22 Nov. 20, 2016 2016 年11 月20 日 Proceedings of the CSEE ©2016 Chin.Soc.for Elec.Eng. 6187 DOI ：10.13334/j.0258-8013.pcsee.152618Z 文章编号：0258-8013 (2016) 22-6187-06 中图分类号：TK 223 W 火焰锅炉燃烧优化与改造技术研究和工程应用 石践，陈玉忠，侯玉波，罗小鹏 (贵州电网有限责任公司电力科学研究院，贵州省 贵阳市 550002) Investigations on the Combustion Optimization Modification of W-Flame Boilers and Engineering Applications SHI Jian, CHEN Yuzhong, HOU Yubo, LUO Xiaopeng (Electric Power Research Institute of Guizhou Power Grid Co., Ltd, Guiyang 550002, GuiZhou Province, China) ABSTRACT: The issues such as W-flame boilers with poor 在此基础上，提出一种以有限空间射流动量矩守恒为基础的 combustion stability and poor burnout were investigated by W 火焰锅炉稳燃、燃尽物理模型和优化设计准则。 using numerical simulations and experimental measurements. 关键词：W 火焰锅炉；低挥发分煤；改造；优化调整 The modification and combustion optimization technology schemes were developed according to the technology 0 引言 characteristics of three types of W-flame boiler. For the Foster 我国低挥发分煤储量丰富(其中无烟煤约占我 Wheeler (FW)-type boilers, some burners were closed at high 国煤炭储量的 19%)[1-2]，是电站锅炉的重要燃料， boiler loads and a novel integrated scheme consisting of below-arch air direction adjustment and above-arch air 但由于其挥发分含量低导致了其稳燃及燃尽特性 distribution optimization was put forward. For the Mitsui 较差。我国燃用低挥发分煤的主力炉型是 W 火焰 Babcock Energy Ltd. (MBEL)-type boilers, a kind of new 锅炉[1-3]，目前投运及在建的W 火焰锅炉逾百台， technology with the improved slit burners and below-arch 其中半数左右为