第45卷，增刊1 2016年8月
石油化工设备
PETRO-CHEMICAL EQUIPMENT
文章编号：1000-7466(2016增刊1-0025-04
D
Supplement 1
Vol.45
Aug.2016
圆头钉板式空气预热器导流板优化设计张斯亮，陈韶范2，孙鹏2，侯岩2，张向南，董旭凯1
（1.甘肃蓝科石化高新装备股份有限公司，甘肃兰州730070；
2.上海蓝滨石化设备有限责任公司，上海201518）
摘要：针对某化工厂圆头钉板空气预热器导流板改造项目，利用FLUENT软件对圆头钉板空气预热器单张板片进行了模拟分析。通过对几种不同形状导流板的流体分析对比得出，流体在导流板处的流动状态受到导流板的数量、长度、弧度等因素的影响。为了进一步研究流体流动状态受这些因素影响的变化规律，结合流体在导流板出口的压力与平均流速变化情况，对导流板的数量、长度、弧度等影响因素采用控制变量法，最终提出了导流板的优化设计方案，该方案可改善流体在导流区分布的均匀程度，进而提升设备换热性能。
关键词：空气预热器；圆头钉板；导流板；数值模拟
中图分类号：TQ051.5；TE965
文献标志码：Adoi10.3969/i.issn.1000-7466.2016.S1.006
GuidePlateRenovation of Round Head Nail Plate Air Preheater
ZHANG Si-liang", CHEN Shao-fan', SUN Peng, HOU Yan', ZHANG Xiang-nan', DONG Xu-kai'
(1.Lanpec Technologies Limited, Lanzhou 730070, China ;
2.Shanghai Lanbin Petrochemical Equipment Co .Ltd.,Shanghai 201518, China)
Abstract : The round head nail plate of the air preheater with two -dimensional fluid model of sin-gle plate was simulated by using FLUENT software ,to renovation a guide plate of the air prehea-ter which with the round head nail plate in a chemical factory . According to the analysis of sever al different guide plates ,the flow of the fluid in the guide plate was influence by the number of such as guide plate ,length ,radian . In order to further study the changing rule of the fluid flow state affected by these factors ,combining with the fluid outlet pressure and the change of the av erage velocity ,the guide plate number ,length ,radian influence factors such as the control variable method. Finally ,the optimization design of guide plate was put forward . As a result the diversior
area fluid distribution uniformity and raise the overall performance were improved . Key words : air preheater round head nail plate guide plate numerical simulation
板式空气预热器在工业空气预热场合已经得到了大量发展及应用，用以回收各类工业炉中烟气的余热。相对于管式空气预热器存在的局限与不足，板式空气预热器具有结构紧凑、压降低、不易结垢及使用范围广等优点[1-]。
近年来，以板单元作为传热元件的空气预热器 ①收稿日期：2016-03-26
在工业中的应用逐年增加。随着流体动力学与计算机技术的快速发展，流体分析技术在空气预热器结构的改进与优化中发挥着越来越重要的作用。例如 KanadsAG、刘伟等人采用FLUENT软件分别对波纹板空气预热器内部的板片、流体通道进行模拟分析，深入了解了流体在设备内部的流动特性后，对
作者简介：张斯亮(1988-），男，辽宁抚顺人，助理工程师，硕士，从事热交换器仿真模拟设计。