机械5

F60螺旋板新型换热器机械设计 此次设计是F60螺旋板式新型换热器，组成部分分别是：螺旋板，螺旋通道，外壳等零件组成。螺旋板式换热器是一种新型的形式，其传热效率好，运行稳定性高，可多台共同工作。这种换热器是由两张卷制而成，形成了两个均匀的螺旋通道，两种传热介质可进行全逆流流动，大大增强了换热效果，即使两种小温差介质，也能达到理想的换热效果。 本次设计为F60螺旋板式新型换热器，设计内容有指导导师所给定的相关参数使热诚的介质，设计压力及设计温度与冷诚是的介质，设计压力及温度之间在换热面积为60，腐蚀余量为自定的条件下完成两者之间的相互转换。在体转换之下保证利用率的高度，提高效率。 设计该类型换热器时要注意以下几点：此类换热器型号的选择，螺旋板材料的选择，外壳刚度的计算，定柱距，螺旋通道以及各种所需参数的计算。因为该换热器为螺旋式，所以不容易造成通道的堵塞，因为是螺旋通道，所以不容易造成死角，杂质的存在大多都是影响通道的腐蚀程度。本次所设计的不可拆卸的换热器需要符合各种强度要求之下，降低管板的厚度。在焊接时注意检查漏点是裂缝还是砂眼同时对该漏点进行处理。 在根据相关规定与设计需求的情况下合理的完成设计并完成该设计的设计图纸，然后在结合实际需求与实际生产条件的情况下安全制作此次设计得出的F60螺旋板式新型换热器。 关键词：螺旋通道；螺旋板；刚度；密封 ABSTRACT The desig
n is F60 spiral plate
new heat excha
nger, the compo
ne
nts are: spiral plate, spiral cha
n
nel, shell a
nd other compo
ne
nts. Spiral plate heat excha
nger is a
new type of heat excha
nger, heat tra
nsfer efficie
ncy, high stability, ca
nwork together more tha
n o
ne. This heat excha
nger is made of two coils, formi
ng two u
niform spiral cha
n
nel, two ki
nds of heat tra
nsfer medium ca
n be cou
ntercurre
nt flow, greatly e
nha
nced the heat tra
nsfer effect, eve
n if the two small temperature differe
nce medium, but also To achieve the desired heat tra
nsfer effect. The desig
n of the F60 spiral plate
new heat excha
nger, the desig
n co
nte
nt of the i
nstructor give
n the releva
nt parameters to make the e
nthusiasm of the media, the desig
n pressure a
nd desig
n temperature a
nd cold is the medium, the desig
n pressure a
nd temperature betwee
n the heat tra
nsfer Area of ??60, the corrosio
n margi
n for the custom co
nditio
ns to complete the co
nversio
n betwee
n the two. U
nder the physical co
nversio
n to e
nsure the utilizatio
n of high, improve efficie
ncy. Desig
n the type of heat excha
nger should pay atte
ntio
n to the followi
ng poi
nts: the choice of such heat excha
nger models, spiral plate material selectio
n, shell stiff
ness calculatio
n, fixed colum
n spaci
ng, spiral cha
n
nel a
nd avariety of required parameters of the calculatio
n. Because the heat excha
nger for the spiral, it is
not easy to cause the cha
n
nel blockage, because it is a spiral cha
n
nel, it is
not easy to cause dead e
nds, the prese
nce of impurities are mostly affect the cha
n
nel corrosio
n. This desig
n of the
no
n-removable heat excha
nger
needs to meet the stre
ngth requireme
nts, reduce the thick
ness of the tube plate. I
n theweldi
ng atte
ntio
n to checkwhether the leak is a crack or trachoma at the same time the leak processi
ng. ?I
n accorda
ncewith the releva
nt provisio
ns a
nd desig
n requireme
nts of the case to complete the desig
n a
nd complete the desig
n of the desig
n drawi
ngs, a
nd the
n combi
nedwith the actual
needs a
nd actual productio
n co
nditio
ns i
n the case of safe productio
n of the desig
n of the F60 spiral plate
new heat excha
nger. Keywords: spiral cha
n
nel; spiral plate; stiff
ness; seal 目录 1综述1 1.1引言1 1.2类型1 1.2.1直接接触式换热器1 1.2.2板、管式换热器1 1.2.3蓄能式换热器1 1.3螺旋板换热器2 1.3.1国内外发展概况2 1.3.2类型2 1.3.3结构特点3 2结构设计4 2.1外壳4 2.2密封结构5 2.2.1垫片端盖密封5 2.2.2焊接密封5 2.3进出口的设计6 2.3.1接管外伸长度6 2.3.2接管最小位置6 2.4刚度6 3设计与计算7 3.1设计的任务和思想7 3.1.1设计的任务7 3.1.2设计的思想7 3.2已知参数8 3.3几何设计9 3.3.1螺旋体画法9 3.3.2中心隔板宽10 3.3.3螺旋通道长度10 3.3.4偏心距10 3.3.5有效换热圈数11 3.3.6外径11 3.3.7螺旋板圈数11 4工艺计算12 4.1强度计算12 4.2挠度计算13 4.3稳定性校核14 4.4应力校核15 5结构尺寸15 5.1定距柱16 5.2密封结构16 5.3进出口接管直径16 5.4外壳17 5.5中心隔板尺寸的计算17 5.6半圆端板18 5.7接管外伸长度及接管位置18 5.8法兰18 5.9支座19 6焊接工艺20 6.1不锈钢的焊接20 6.2设计原则21 6.3焊接工艺21 6.3.1筒体的焊接工艺21 6.3.2中心隔板与螺旋板的焊接工艺22 7生产制造与安装22 7.1材料的验收22 7.2螺旋板的制造22 7.2.1螺旋板板材的下料23 7.3制造工艺23 结语24 参考文献25 致谢26