双泡径式水泥发泡机的设计 DESIGN OF DOUBLE BUBBLE DIAMETER CEMENT FOAMING MACHINE 摘要 泡沫混凝土是一种重量轻、保温、隔音、耐火的多功能材料，它在建筑节能及防火领域有着举足轻重的地位。老式的水泥发泡机设备生产出的泡沫泡径显得匀称单一，泡沫之间的距离间隔较宽，生产出的泡沫混凝土制品会出现微孔相对疏松的情况。若在泡沫的缝隙间加入比较小泡径的泡沫，让缝隙率下降，使整个产品更加的轻质。探索开发出泡沫密度可控、性能稳定、产率高效的水泥发泡机，对助力泡沫混凝土制品的推广应用意义非凡。 本设计将发泡的雾化喷嘴和气泡发生器融为一体的方法，使水泥发泡机能够同时产出双种不同泡径泡沫的创新想法。发泡管结构由一小直径发泡管嵌入到一大直径发泡管中间构成，大小直径发泡管中各自装有不一样填充率的介质起饶流功效。并按照六方最密填充理论，构建出最佳直径比、体积比的双种直径泡沫堆积的结构模型。最终用机械制图软件CAD绘出双泡径式水泥发泡机的总装配图及主要零部件图。 关键词泡沫混凝土；泡径；雾化喷嘴；最密填充 Abstract Foamed co
ncrete is a lightweight, heat-i
nsulati
ng, sou
nd-i
nsulati
ng a
nd fire-resista
nt multifu
nctio
nal material that plays a
n importa
nt role i
n buildi
ng e
nergy co
nservatio
n a
nd fire protectio
n. The bubble foam diameter produced by the old ceme
nt foami
ng machi
ne equipme
nt appears to be u
niform a
nd u
niform, a
nd the dista
nce betwee
n the foams is widely spaced. The productio
n of foamed co
ncrete products will result i
n relatively loose pores. If a bubble with a relatively small bubble diameter is added betwee
n the gaps i
n the foam, the gap rate will decrease, maki
ng the e
ntire product eve
n lighter. The exploratio
n a
nd developme
nt of a ceme
nt foami
ng machi
ne with co
ntrollable foam de
nsity, stable performa
nce, a
nd high yields are of great sig
nifica
nce for the promotio
n a
nd applicatio
n of foam-assisted co
ncrete products. This paper desig
ns a method that i
ntegrates the foami
ng atomizi
ng
nozzle a
nd the bubble ge
nerator, so that the ceme
nt foami
ng machi
ne ca
n simulta
neously produce two i
n
novative ideas of differe
nt bubble diameter foams. The structure of the foamed pipe co
nsists of a small-diameter foamed pipe embedded i
n the middle of a large-diameter foamed pipe. The medium filled with differe
nt filli
ng ratios i
n the small a
nd large-diameter foamed pipes has a raphic effect. Accordi
ng to the hexago
nal de
nse packi
ng theory, the optimal diameter ratio a
nd volume ratio of double-diameter foam deposits were co
nstructed. Fi
nally, the mecha
nical drawi
ng software CAD was used to draw the total assembly drawi
ng a
nd the mai
n parts drawi
ng of the double-bubble-diameter ceme
nt foami
ng machi
ne. Keywords Foam co
ncrete Bubble path Atomizatio
n
nozzle Closest fill 目录 摘要I Abstract II 1绪论1 1.1泡沫混凝土的简介1 1.1.1泡沫混凝土的特性1 1.1.2泡沫混凝土的应用与发展3 1.2水泥发泡机的简介4 1.2.1水泥发泡机的原理与发展4 2设计()的内容和要求6 2.1设计内容6 2.1.1研究的主要内容6 2.1.2拟解决的主要问题6 2.1.3研究方法技术路线6 3双泡径式水泥发泡机的总体设计7 3.1水泥发泡机的发泡方式7 3.2双泡径泡沫结构的理论模型7 3.2.1泡沫的形成7 3.2.2气泡的稳定性8 3.2.3气泡的结构9 3.3水泥发泡机的工作原理12 3.4供液设置和进气设置12 3.5双泡径式发泡管的设计13 3.5.1双泡径发泡管的结构设计13 3.5.2雾化喷嘴的设计14 3.5.3双泡发泡管的尺寸参数16 3.5.4双泡发泡管内填充18 3.6控制系统的设计19 3.7水泥发泡机的机架设计19 4元件配置的选择21 4.1空气压缩机的选型21 4.2液泵的选型21 4.3阀的选型22 5校核强度23 5.1分析载荷情况23 5.2机架强度校核23 6双泡径式水泥发泡机的日常维护和故障排查24 结论27 致谢28 参考文献29