机械5

F100螺旋板式换热器设计 摘要 热交换设备在许多工业部门中都有应用，而且非常广泛。例如，炼油、石油化工等等。F100来说固定管板式换热器的换热设备,改变其大小,设备,和金属消费的热效率比今天的新型换热器,但它也有很多你没有其他换热设备的各种质量好,如固体结构、弹性、高可靠性、使用范围等,固定管板式换热器是广泛应用于各种行业。希望确保固定管板换热器的强度和使用时间的长度,你需要设计合理的结构,因此需要材料,压力、温度、壁温、污染条件下,流体性质和考虑维护和清洗等各种因素来选择一个合理的结构。即使是相同形式的热交换器也使用不同的结构，因为它以不同的方式使用。我们在工程设计时,尽可能选择定性的产品范围,或根据特定的需求来设计,从而达到的工艺条件(设计在某些情况下,最好的最节省材料最实用和容易产生热交换器,等等)。 关键词：固定管板式换热器；使用范围；结构设计 ABSCHACT Heat excha
nger iswidely used i
n ma
ny i
ndustries, such as refi
ni
ng, petrochemical a
nd so o
n. It ca
n be used i
n all aspects of heat tra
nsfer. F400 fixed tube-plate heat excha
nger is o
ne of the heat excha
ngers. Its heat tra
nsfer efficie
ncy, the size of the equipme
nt, a
nd the co
nsumptio
n of metals are
not as good as those of the
new type of heat excha
ngers. However, it also has ma
ny excelle
nt qualities that other heat tra
nsfer equipme
nts do
not have, such as solid structure, elastic size, high reliability, applicatio
n ra
nge a
nd so o
n. Therefore, fixed-tube plate heat excha
nger iswidely used i
nvarious i
ndustries. I
n order to e
nsure the stre
ngth a
nd the use time of the fixed tube plate heat excha
nger, it is
necessary to desig
n a reaso
nable structure, so it is
necessary to select a reaso
nable structure o
nvarious factors such as material, pressure, temperature,wall temperature differe
nce, scali
ng, fluid property a
nd mai
nte
na
nce a
nd clea
ni
ng. Because of the differe
nt co
nditio
ns, eve
n the same type of heat excha
nger has to use a differe
nt structure. Whe
nwe desig
n our projects,we should choose as ma
ny qualitative products as possible, or desig
n them accordi
ng to certai
n requireme
nts. O
nly i
n thisway ca
nwe meet the tech
nological co
nditio
ns(desig
n the best, most eco
nomical, practical a
nd easy to produce heat excha
ngers, etc.) u
nder certai
n circumsta
nces. Keywords：fixed tube-plate heat excha
nger; scope of use; structural desig
n 目录 1前言4 1.1管壳式换热器的研究背景4 1.2管壳式换热器现状和发展5 1.2.1管壳式换热器管程结构发展5 1.2.2壳程强化结构的发展7 1.3管壳式换热器的分类9 1.4本的研究内容10 2螺旋板式换热器的方案设计11 3螺旋板式换热器的传热工艺的计算15 3.1传热量Q 15 3.2螺旋通道截面积与当量直径的计算16 3.2.1贫油（热程）通道16 3.2.2贫油的雷诺数和普兰特数Pr 16 3.2.3贫油的传热系数a的计算16 3.2.4富油传热系数的计算17 3.2.5对数平均温度差,流体流动方向为全逆流操作17 3.3总传热系数K 18 3.4传热面积计算18 3.5螺旋通道计算18 3.6螺旋圈数
n与螺旋体外径18 3.7流体压降的计算19 4螺旋板式换热器的螺旋板的强度计算与校核20 4.1强度计算20 4.2螺旋板的挠度21 4.3稳定性计算21 5螺旋板式换热器的结构尺寸22 5.1密封结构22 5.2定距柱尺寸23 5.3换热器外壳的设计23 5.4进出口接管设计25 5.5中心隔板尺寸25 5.6螺旋板换热器各设计参数如下： 26 参考文献27 致谢28