項目名(ming)稱：消防排(pai)煙風管加工

項(xiang)目時間：2020年9月(yue)

項目地點：貴州

項目(mu)介紹：消(xiao)防(fang)排煙(yan)(yan)管(guan)(guan)(guan)道(dao)材(cai)(cai)(cai)(cai)質(zhi)必須是白鐵(tie)皮材(cai)(cai)(cai)(cai)料或不銹鋼材(cai)(cai)(cai)(cai)料，另外(wai)管(guan)(guan)(guan)道(dao)的zhi密封材(cai)(cai)(cai)(cai)料基本上都(dou)是耐(nai)高(gao)(gao)溫(wen)防(fang)腐的軟性密封材(cai)(cai)(cai)(cai)料。消(xiao)防(fang)排煙(yan)(yan)管(guan)(guan)(guan)有消(xiao)防(fang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)和排煙(yan)(yan)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)，一個是向(xiang)(xiang)外(wai)抽走煙(yan)(yan)氣，二個是向(xiang)(xiang)室內鼓進大(da)量空氣，擠走煙(yan)(yan)氣。兩者材(cai)(cai)(cai)(cai)質(zhi)上都(dou)要按(an)高(gao)(gao)壓系統材(cai)(cai)(cai)(cai)質(zhi)選(xuan)擇，要經得起2小時火災(zai)。按(an)截面形(xing)(xing)狀，煙(yan)(yan)管(guan)(guan)(guan)可分為(wei)圓(yuan)形(xing)(xing)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)，矩形(xing)(xing)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)，扁圓(yuan)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)等多種，其中圓(yuan)形(xing)(xing)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)阻力最小但高(gao)(gao)度尺寸大(da)，制作復雜。所以(yi)(yi)應用(yong)以(yi)(yi)矩形(xing)(xing)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)為(wei)主。按(an)材(cai)(cai)(cai)(cai)質(zhi)，風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)可分為(wei)金屬風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)，復合(he)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)，高(gao)(gao)分子風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)。