通(tong)風(feng)(feng)(feng)(feng)(feng)又(you)稱(cheng)換氣(qi)，是用(yong)(yong)機械(xie)或自然的(de)方法向室內空(kong)間(jian)送入足(zu)夠的(de)新(xin)鮮空(kong)氣(qi)，同時把室內不符合(he)衛生(sheng)要(yao)(yao)(yao)求的(de)污濁空(kong)氣(qi)排(pai)出，使室內空(kong)氣(qi)滿足(zu)衛生(sheng)要(yao)(yao)(yao)求和生(sheng)產過程需要(yao)(yao)(yao)，建筑中完成通(tong)風(feng)(feng)(feng)(feng)(feng)工作的(de)各項設施，統稱(cheng)為(wei)通(tong)風(feng)(feng)(feng)(feng)(feng)設備(bei)。通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)道(dao)(dao)(dao)按材質分(fen)：一(yi)般有：鋼(gang)板(ban)(ban)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)（普通(tong)鋼(gang)板(ban)(ban)）、鍍(du)鋅板(ban)(ban)（白鐵）風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、不銹(xiu)鋼(gang)通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、玻璃鋼(gang)通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、塑(su)(su)料通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、復合(he)材料通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、彩鋼(gang)夾(jia)心保溫(wen)板(ban)(ban)通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、雙(shuang)面鋁箔保溫(wen)通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、單(dan)面彩鋼(gang)保溫(wen)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)、涂膠布通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)（如礦用(yong)(yong)風(feng)(feng)(feng)(feng)(feng)筒）、礦用(yong)(yong)塑(su)(su)料通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)等。排(pai)油煙系統：飯店、酒樓(lou)、賓館的(de)廚房均(jun)有大量油煙產生(sheng)，需要(yao)(yao)(yao)排(pai)出，采用(yong)(yong)通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)道(dao)(dao)(dao)是合(he)適的(de)，強度好(hao)，不銹(xiu)鋼(gang)通(tong)風(feng)(feng)(feng)(feng)(feng)管(guan)(guan)道(dao)(dao)(dao)加工，經濟實用(yong)(yong)。

對于薄(bo)鋼板法蘭通(tong)風管(guan)道(dao)(dao)(dao)內(nei)、外表(biao)層和(he)內(nei)部(bu)絕(jue)熱(re)材(cai)(cai)料粘(zhan)接牢固，這是(shi)(shi)是(shi)(shi)保證復合材(cai)(cai)料安全(quan)的(de)(de)基本條(tiao)件(jian)之一。按照規定面積(ji)和(he)厚度不僅能(neng)延長風管(guan)的(de)(de)使(shi)用(yong)壽命(ming)還能(neng)增(zeng)加保溫效果(guo)，讓(rang)風管(guan)得到(dao)大程度和(he)好的(de)(de)利用(yong)。在(zai)我國的(de)(de)多個場(chang)所(suo)，尤其是(shi)(shi)中央(yang)空調(diao)的(de)(de)大型(xing)(xing)場(chang)所(suo)，通(tong)風管(guan)道(dao)(dao)(dao)的(de)(de)使(shi)用(yong)是(shi)(shi)為(wei)普及的(de)(de)，它們(men)是(shi)(shi)進(jin)行空氣流通(tong)，幫助空調(diao)完成(cheng)作(zuo)業(ye)的(de)(de)主要零部(bu)件(jian)。我們(men)要想進(jin)行通(tong)風管(guan)道(dao)(dao)(dao)加工(gong)，且讓(rang)它們(men)更好的(de)(de)結合空調(diao)進(jin)行工(gong)作(zuo)，通(tong)風管(guan)道(dao)(dao)(dao)加工(gong)，那(nei)么，我們(men)也要在(zai)加工(gong)之前考慮下(xia)它們(men)的(de)(de)類型(xing)(xing)，這是(shi)(shi)我們(men)確保它們(men)作(zuo)業(ye)，通(tong)風管(guan)道(dao)(dao)(dao)，發揮優勢(shi)作(zuo)用(yong)的(de)(de)好條(tiao)件(jian)。

通(tong)風(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)是(shi)(shi)工業與民用建(jian)筑的通(tong)風(feng)與空調工程用金屬或復合(he)(he)管(guan)(guan)(guan)(guan)(guan)道(dao)，附近通(tong)風(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)加工廠，是(shi)(shi)為了使空氣流通(tong)，降低有(you)害氣體濃度的一(yi)(yi)種市政基礎設施。排(pai)油(you)煙系(xi)統：飯店、酒樓(lou)、賓(bin)館的廚(chu)房均有(you)大量(liang)油(you)煙產生，需要(yao)排(pai)出，采用通(tong)風(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)是(shi)(shi)合(he)(he)適的，強度好(hao)，經濟實用。通(tong)風(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)的橫截面分為三個種類：1、圓(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan):圓(yuan)(yuan)管(guan)(guan)(guan)(guan)(guan)-般為直(zhi)接安裝(zhuang)的管(guan)(guan)(guan)(guan)(guan)， 標(biao)(biao)記時(shi)應清(qing)楚標(biao)(biao)明(ming)其直(zhi)徑(jing);2、矩形管(guan)(guan)(guan)(guan)(guan):施工時(shi)一(yi)(yi)般建(jian)有(you)矩形通(tong)風(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)， 標(biao)(biao)記時(shi)應注明(ming)長(chang)度和(he)寬(kuan)度;3、外(wai)觀為矩形，內部帶有(you)圓(yuan)(yuan)形:這種管(guan)(guan)(guan)(guan)(guan)子是(shi)(shi)在安裝(zhuang)后由外(wai)部粉末制成(cheng)，打標(biao)(biao)時(shi)只(zhi)需要(yao)標(biao)(biao)準(zhun)定義的長(chang)度和(he)寬(kuan)度即可。