從重慶白鐵加好的螺旋風管工廠了解到，白鐵皮要比馬口鐵耐用，馬口鐵碰破一點，很快會爛掉;可是白鐵皮即使碰螺旋風管安裝破一大塊，也不容易(yi)被銹(xiu)蝕。這是因為(wei)鋅(xin)(xin)的(de)化(hua)學性質比鐵活(huo)潑，當外(wai)(wai)界的(de)空(kong)氣(qi)和(he)水份向(xiang)白(bai)鐵皮(pi)“進攻”時，鋅(xin)(xin)首先(xian)與氧氣(qi)化(hua)合，而保護(hu)了(le)鐵的(de)安(an)全。 金屬鋅(xin)(xin)除了(le)用來制(zhi)(zhi)造白(bai)鐵皮(pi)外(wai)(wai)，也用來制(zhi)(zhi)造干電(dian)(dian)池的(de)外(wai)(wai)殼。不過干電(dian)(dian)池外(wai)(wai)殼的(de)鋅(xin)(xin)是較純的(de)。此(ci)外(wai)(wai)，鋅(xin)(xin)也與銅制(zhi)(zhi)成銅鋅(xin)(xin)合金——黃銅。

支吊架不得好的螺旋風管安裝在風口、閥門檢查孔處，以免妨礙操作。吊架不得直接吊在法蘭上。保溫風管不能直接與支螺旋風管安裝吊(diao)(diao)架(jia)接觸，應墊上(shang)堅固的(de)隔熱材料，其厚度(du)與保溫風管厚度(du)相(xiang)同，防止產生“冷橋”。聚氯(lv)吞烯風管也與鋼板風管一樣采用支、吊(diao)(diao)托架(jia)，但一般(ban)以吊(diao)(diao)架(jia)為主，支架(jia)間距按(an)下表的(de)要求制(zhi)作(zuo)安裝(zhuang)。

廚房排煙管道好的螺旋風管的設計和安裝不合理，往往會造成廚房排煙不通暢，直接影響油煙凈化器的使用，其主要螺旋風管安裝原(yuan)因(yin)(yin)有以(yi)(yi)下幾(ji)種(zhong)： 一(yi)、主(zhu)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)通(tong)(tong)(tong)風(feng)(feng)面(mian)積(ji)(ji)不(bu)(bu)(bu)夠 迅速(su)(su)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)防(fang)止串味(wei)看(kan)(kan)廚(chu)房排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)安(an)(an)裝 根據(ju)工程經(jing)驗，排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)主(zhu)管(guan)(guan)(guan)(guan)(guan)道(dao)內(nei)風(feng)(feng)速(su)(su)不(bu)(bu)(bu)能超過15m/s，否則在(zai)(zai)運行一(yi)個時期以(yi)(yi)后很容(rong)易造成排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)系統(tong)不(bu)(bu)(bu)通(tong)(tong)(tong)暢(chang)。在(zai)(zai)油(you)(you)(you)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)凈化器(qi)的(de)(de)(de)運行實(shi)踐(jian)中，大部分案例都(dou)是因(yin)(yin)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)通(tong)(tong)(tong)風(feng)(feng)面(mian)積(ji)(ji)不(bu)(bu)(bu)足引起(qi)的(de)(de)(de)不(bu)(bu)(bu)通(tong)(tong)(tong)暢(chang)，管(guan)(guan)(guan)(guan)(guan)道(dao)內(nei)氣體的(de)(de)(de)流速(su)(su)都(dou)在(zai)(zai)15m/s以(yi)(yi)上。 二、管(guan)(guan)(guan)(guan)(guan)道(dao)截面(mian)積(ji)(ji)變小(xiao) 迅速(su)(su)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)防(fang)止串味(wei) 看(kan)(kan)廚(chu)房排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)安(an)(an)裝 排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)由(you)(you)(you)于(yu)要(yao)穿過建(jian)筑梁而(er)使管(guan)(guan)(guan)(guan)(guan)道(dao)通(tong)(tong)(tong)風(feng)(feng)截面(mian)積(ji)(ji)變小(xiao)，截面(mian)上阻力(li)增加，造成氣流不(bu)(bu)(bu)通(tong)(tong)(tong)暢(chang)。 三、排(pai)(pai)(pai)(pai)(pai)管(guan)(guan)(guan)(guan)(guan)道(dao)使用(yong)后積(ji)(ji)聚物(wu)堆(dui)積(ji)(ji) 迅速(su)(su)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)防(fang)止串味(wei) 看(kan)(kan)廚(chu)房排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)安(an)(an)裝 排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)在(zai)(zai)穿過建(jian)筑梁或躲避其它設備管(guan)(guan)(guan)(guan)(guan)道(dao)時，排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)中的(de)(de)(de)一(yi)段(duan)會(hui)低于(yu)整(zheng)體排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)平(ping)面(mian)，在(zai)(zai)使用(yong)一(yi)段(duan)時間后，由(you)(you)(you)于(yu)油(you)(you)(you)水混合物(wu)會(hui)積(ji)(ji)聚在(zai)(zai)較(jiao)低的(de)(de)(de)那(nei)段(duan)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道(dao)中，直接影響(xiang)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)通(tong)(tong)(tong)暢(chang)。 四(si)、低層排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)不(bu)(bu)(bu)順暢(chang) 不(bu)(bu)(bu)同(tong)樓層的(de)(de)(de)廚(chu)房油(you)(you)(you)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)通(tong)(tong)(tong)過同(tong)一(yi)主(zhu)管(guan)(guan)(guan)(guan)(guan)道(dao)排(pai)(pai)(pai)(pai)(pai)出，離出口(kou)近(jin)的(de)(de)(de)樓層廚(chu)房排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)效果較(jiao)好，而(er)較(jiao)低樓層的(de)(de)(de)廚(chu)房排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)不(bu)(bu)(bu)通(tong)(tong)(tong)暢(chang)。 五、建(jian)議配備排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)風(feng)(feng)機(ji)(ji)(ji) 對于(yu)油(you)(you)(you)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)較(jiao)大的(de)(de)(de)廚(chu)房，建(jian)議還(huan)配備一(yi)個排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)風(feng)(feng)機(ji)(ji)(ji)。常用(yong)的(de)(de)(de)排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)風(feng)(feng)機(ji)(ji)(ji)有軸流風(feng)(feng)機(ji)(ji)(ji)、風(feng)(feng)機(ji)(ji)(ji)箱和離心風(feng)(feng)機(ji)(ji)(ji)3種(zhong)。 軸流風(feng)(feng)機(ji)(ji)(ji)：以(yi)(yi)前(qian)應(ying)用(yong)較(jiao)多，但由(you)(you)(you)于(yu)全壓(ya)小(xiao)，在(zai)(zai)安(an)(an)裝油(you)(you)(you)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)凈化器(qi)后很少(shao)應(ying)用(yong)。 風(feng)(feng)機(ji)(ji)(ji)箱：全壓(ya)中等，風(feng)(feng)量(liang)可以(yi)(yi)調節，且噪聲較(jiao)低，常在(zai)(zai)集煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)罩(zhao)距油(you)(you)(you)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)排(pai)(pai)(pai)(pai)(pai)放口(kou)距離中等的(de)(de)(de)廚(chu)房排(pai)(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)系統(tong)中選用(yong)。 離心風(feng)(feng)機(ji)(ji)(ji)：全壓(ya)和風(feng)(feng)量(liang)都(dou)可以(yi)(yi)調節，但由(you)(you)(you)于(yu)噪聲較(jiao)大，常需要(yao)做降噪處理(li)。當(dang)廚(chu)房位于(yu)建(jian)筑物(wu)的(de)(de)(de)底部時其排(pai)(pai)(pai)(pai)(pai)風(feng)(feng)機(ji)(ji)(ji)宜安(an)(an)放在(zai)(zai)屋頂，一(yi)般選擇離心風(feng)(feng)機(ji)(ji)(ji)。

不過黑白鐵加工是一項非常復雜好的螺旋風管的工藝，在加工過程中很容易發生危險，為了避免這些危險發生加工人員在加工過程中需螺旋風管安裝要(yao)注意哪些問題？在對白鐵加工之(zhi)前必須要(yao)知道遵(zun)守(shou)(shou)相關操作(zuo)流(liu)程(cheng)，在鍍鋅(xin)的時(shi)候必須要(yao)帶(dai)手套(tao)、安全帽等衣物(wu)，任何步驟(zou)都要(yao)以(yi)人為(wei)本，使用(yong)到(dao)的工具必須要(yao)遵(zun)守(shou)(shou)柳(liu)工相關事項。