风室结构形式对链条炉排横向配风的影响研究  

A Study of the Influence of Windbox Structure on Air Transverse Distribution of Travelling Grate Stoker

作　　者：谢德惠 徐胜利[2] 吴俊男[2] 田夫[2] 辛建池[2] 

机构地区：[1]大连阳光锅炉辅机有限公司,辽宁大连116037 [2]大连理工大学能源与动力学院,辽宁大连116024

出　　处：《工业锅炉》2012年第6期21-24,27,共5页Industrial Boilers

摘　　要：链条炉排风室横向配风的均匀性是影响锅炉燃烧效率的重要因素。通过数值模拟研究了炉排现有风室结构的内部空气流动特性,分析了流场不均匀的原因。根据风室供风的性能要求和空气流动基本理论,提出了几种新风室结构方案。对比发现,一种变截面的风室结构比较理想。数值模拟结果表明这种变截面风室出口风量比较均匀,且风室结构简单,可以提高锅炉燃烧效率。The uniformity of air transverse distribution of windbox is an important factor of the efficiency of travelling grate stoker boiler. The air distribution of the old - type windbox was analyzed by numerical simulation and the reasons of the uneven air distribution were discussed. Several new structures of windbox were designed on the basis of fluid dynamics theory and the performance requirement of air supply. Comparing these new structures, it was found that the air distribution of the one windbox with variable cross - section was preferable. The result of numerical simulation indicated that the outlet air mass flow was relatively even and the new - type windbox had a simple constrnetiou so that the efficiency of boiler can be increased.

关 键 词：风室 横向配风 数值模拟 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]