文档介绍：华中科技大学
硕士学位论文
蓄热式管式加热炉热力计算与试验研究
姓名:谢德华
申请学位级别:硕士
专业:工程热物理
指导教师:靳世平
20090518
华中科技大学硕士学位论文
摘要
管式加热炉是炼油厂及石油化工厂的主要设备之一,也是炼油工业用的很普遍的
一种火力加热设备。传统的管式加热炉往往存在炉膛热强度分布不均匀等缺点,为了
解决这一问题,本文设想利用高温空气燃烧技术设计一种新型蓄热式管式加热炉,以
达到均匀化炉膛热强度和节能减排的双重目的。
本文首先介绍了管式加热炉的一般结构、几种常用炉型和高温空气燃烧技术的研
究现状及其应用,接着引出加热炉效率的计算公式,并详细讨论了其效率的影响因素,
为加热炉的节能改造提供了理论依据。
然后利用改进的锅炉计算方法对改造后的加热炉进行了热力计算,得出了不同预
热空气温度下满足加热负荷所需燃料量,炉膛出口烟气温度和绝热燃烧温度,计算结
果表明预热空气温度越高,所需燃料量越少,炉膛烟气出口温度和绝热燃烧温度越低。
同时搭建了试验台架,研究不同换向周期对蓄热体纵向温度分布和效率的影响、
蓄热室的换热和阻力特性、不同换向周期下的炉膛温度变化规律和燃烧火焰随预热空
气温度变化情况。

关键词:管式加热炉;炉膛热强度;高温空气燃烧技术;热力计算;预热空气温度;
换向周期;蓄热体

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华中科技大学硕士学位论文
Abstract
Tubular heating furnace is one of main equipments in refineries and petrochemical
factories,and also a kind of usual firepower heating equipments in oil refining
is usually that the thermal intensity in the furnace of usual tubular heating furnace is
solve this problem,this paper conceives of designing a new regenerative tubular
heating furnace by use of high air bustion to reach the aim of uniforming
thermal intensity of furnace, energy saving and emission reduction.
Firstly this paper introduces general structure and several usual patterns of tubular
heating furnace and research status and its application of HTAC,and then elicits calculation
formula of efficiency of tubular heating furnace,and discusses impacting factors on it
particularly,which can provide theory basis for energy saving reconstruction of heating
furnace.
Then thermal calculation is done on reconstructed heating furnace by use of mended
boiler calculation method and it educes the amount of fuel which can meet heating load
under different preheated air temperature,flue gas temperature in hearth outlet and adiabatic
combustion result shows that the higher the preheated air
temperature is,the lower the amount of fuel is,the lower the flue gas temperature in hearth
outlet and bustion tem