1100MW机组等离子点火特性的数值模拟  

Numerical Simulation of Plasma Ignition Characteristics of 1100MW Unit

作　　者：闫金山 张凯[1] 吴云 于建民 陈亮 徐荣田 尚庆 

机构地区：[1]航天神洁(宁夏)环保科技有限公司,宁夏银川750411 [2]中国航天空气动力技术研究院,北京100074 [3]神华国能宁夏鸳鸯湖发电有限公司,宁夏银川750411

出　　处：《工业炉》2017年第5期23-28,共6页Industrial Furnace

摘　　要：以Fluent软件为计算平台,基于计算流体力学、计算传热学和计算燃烧学的原理,对1100MW机组锅炉采用等离子点火系统,针对设计制造的单角等离子体点火燃烧器煤粉燃烧过程进行气粒两相三维流动、换热和燃烧的数值模拟,预测了不同煤粉空气配比条件下的炉膛内气粒两相流动、温度场分布、气相组分浓度场分布等情况,为机组锅炉等离子点火系统的实际运行提供指导。Using the Fluent software as calculation platform, based on the principle of computational fluid dynamics, computational heat transfer and computational combustion, the numerical simulation for gasparticle two-phase three-dimensional flow, heat transfer and combustion of the single angle of plasma ignition burner of pulverized coal combustion process is carried out, which is designed and manufactured in the 1 100 MW unit boiler by the plasma ignition system. The gas-particle two-phase flow, temperature distribution, and gas phase component concentration field distribution of different air proportions are predicted. It provides guidance for the actual operation of boiler plasma ignition system.

关 键 词：1100MW机组锅炉 等离子体点火 煤粉燃烧器 数值模拟 

分 类 号：TM621.2[电气工程—电力系统及自动化]