全氧燃烧加热炉内涡流运动规律及对弥散燃烧影响研究

项目名称： 全氧燃烧加热炉内涡流运动规律及对弥散燃烧影响研究

项目编号： No.51464041

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 矿业工程

项目作者： 伍永福

作者单位： 内蒙古科技大学

项目金额： 46万元

中文摘要： 全氧燃烧技术由于燃烧效率高、CO2回收方便等特点，近年来已成为实现燃烧综合节能及协同降碳减排技术的热点之一，然而全氧燃烧的高温特性和燃烧不稳定性直接影响该技术在加热炉上的应用。本项目拟采用涡流控制技术实现加热炉内弥散燃烧方案，通过用稳流试验法研究不同涡流控制技术和进气速度对全氧加热炉炉内涡流运动的影响，优化弥散燃烧所需的涡流结构及初始动量比；拟用PIV技术和多维数值模拟技术研究不同燃烧强度下全氧加热炉炉内涡流运动规律及不同涡流强度、涡量比对弥散燃烧的影响，研究涡流运动对弥散燃烧的流场、温度场及浓度场的分布规律的影响，寻求实现炉内弥散燃烧的最佳燃烧器结构、氧燃动量比及涡流运动规律。通过本项目的研究关键是解决全氧燃烧弥散燃烧方式下涡流运动规律及涡流结构对弥散燃烧的影响，以扩展全氧燃烧的火焰面结构，均匀火焰空间的温度分布，为全氧燃烧技术在工业加热炉上的应用提供理论基础。

中文关键词： 加热炉；全氧燃烧；弥散燃烧；涡流运动；温度场

英文摘要： Due to the high combustion efficiency and the convenient recycling of CO2 , Oxygen-fuel combustion technology has become one of the hot spots of burning integrated energy saving and collaborative carbon emissions reduction technology, but high combustion temperature and oxygen combustion instability of total oxygen combustion technology directly affects the application of this technology in the reheating furnace.This project intends to realize diffusion combustion in heating furnace by using eddy current controlling technology, through steady flow test method is used to research different eddy current control technology and the influence of inlet velocity on the vortex motion in total oxygen furnace, optimizing the required vortex structure and the initial momentum in dispersion combustion process, planning to use PIV technology and multi-dimensional numerical simulation technology to research movement rules of vortex and the influence of different eddy current intensity and vorticity ratio on diffusion combustion in different combustion intensity, research the influence of vortex motion on regularities of distribution of flow field, temperature field and concentration field in the diffusion combustion, Seek to achieve the best burner structure, oxygen combustion momentum ratio and vortex movement rules of diffusion combustion in the furnace.The objective of the research is focus on solving vortex motion and vortex structure on the influence of diffusion combustion the oxygen diffusion combustion mode，so that to extend the flame surface structure of total oxygen combustion、the temperature distribution of the homogeneous flame space, for providing theoretical basis of the application of the Oxygen-fuel combustion technology in industrial furnace.

英文关键词： reheat fuenace;oxygen-fuel combustion;Diffusion Combustion;Vortex Movement;temperature field