运行参数对400 t/d垃圾焚烧炉结焦特性影响及优化研究  

Numerical Study on Influence and Optimization of Operating Parameters on Coking Characteristics of 400t/d Stoke-type Waste Incinerator

作　　者：黄俊宾 刘嘉晋 钟志刚 游敬翔 黄勇 武志林 闫云飞[2,3] 杨仲卿[2,3] HUANG Jun-bin;LIU Jia-jin;ZHONG Zhi-gang(Shenzhen Weineng Environmental Protection Co.,Ltd.;Key Laboratory of Low-grade Energy Utilization Technologies and Systems,Chongqing University,Ministry of Education;School of Energy and Power Engineering,Chongqing University)

机构地区：[1]深圳市宝安区深能环保有限公司 [2]低品位能源利用技术及系统教育部重点实验室(重庆大学) [3]重庆大学能源与动力工程学院

出　　处：《电站系统工程》2024年第3期31-35,共5页Power System Engineering

摘　　要：焚烧法是处理城市固体垃圾的有效手段,但垃圾焚烧发电中,随着垃圾热值逐年增加,炉内受热面往往面临着结焦问题,严重地限制了垃圾焚烧发电的发展。以400 t/d城市生活垃圾焚烧炉为研究对象,使用CFD对过量空气系数、一次风温度和一二次风配比等三个方面进行数值分析,研究其对垃圾焚烧炉结焦特性的影响规律,并优化运行参数。结果表明:当过量空气系数为1.4时,一次风温控制为150℃,一、二次风比7:3,炉膛最高温度为1154℃,能维持焚烧炉日常运行,灰分结渣降低,为垃圾焚烧炉运行参数的优化设计提供了理论依据。Incineration is an effective means to deal with municipal solid waste,but in the process of waste incineration power generation,as the calorific value of waste increases year by year,the heating surface in the furnace is often faced with the problem of coking,which seriously limits the development of waste incineration power generation.Takes the 400t/d municipal solid waste incinerator as the research object,and uses CFD to conduct numerical analysis on three aspects,such as excess air coefficient,primary air temperature and secondary air ratio,to study the law of its influence on the coking characteristics of the waste incinerator,and optimize the operation parameters.The results show that when the excess air coefficient is 1.4,the primary air temperature is controlled to 150℃,the primary and secondary air ratio is 7:3,and the maximum furnace temperature is 1154℃,which can maintain the daily operation of the incinerator and reduce the ash and slag,providing a theoretical basis for the optimization design of the operating parameters of the waste incinerator.

关 键 词：垃圾焚烧炉 数值模拟 结焦特性 运行参数 

分 类 号：TK16[动力工程及工程热物理—热能工程]