怎樣分辨自家煙(yan)道(dao)的(de)(de)結構？明(ming)白(bai)了主(zhu)煙(yan)道(dao)和副(fu)煙(yan)道(dao)的(de)(de)概念，我(wo)(wo)們(men)怎么(me)知道(dao)自家是(shi)(shi)A1，A2，B1還是(shi)(shi)B2結構呢？簡單的(de)(de)辦法(fa)是(shi)(shi)問開發(fa)商要(yao)圖(tu)紙，或者找物(wu)業(ye)公司(si)。這兩(liang)種方(fang)法(fa)是(shi)(shi)容易執(zhi)行的(de)(de)，可是(shi)(shi)有時(shi)候(hou)我(wo)(wo)們(men)要(yao)不到圖(tu)紙，物(wu)業(ye)公司(si)的(de)(de)人(ren)找不到資料，怎么(me)辦？那就只能(neng)用蠻辦法(fa)了，開一(yi)(yi)個(ge)小(xiao)孔，拿一(yi)(yi)根(gen)繩(sheng)子綁一(yi)(yi)根(gen)小(xiao)鐵釘（或者其(qi)他小(xiao)物(wu)件）去往下探(tan)，能(neng)探(tan)到底的(de)(de)就是(shi)(shi)副(fu)煙(yan)道(dao)。其(qi)實(shi)我(wo)(wo)認為，寫字樓(lou)油(you)煙(yan)管道(dao)制作，哪怕是(shi)(shi)物(wu)業(ye)告訴了你主(zhu)煙(yan)道(dao)在哪邊，我(wo)(wo)們(men)自己(ji)也這么(me)確認一(yi)(yi)下，萬一(yi)(yi)物(wu)業(ye)的(de)(de)“”弄錯了呢？

1、主(zhu)排煙(yan)(yan)(yan)(yan)管(guan)道通(tong)風(feng)(feng)面積(ji)不(bu)夠，氣(qi)(qi)體流速過(guo)大。根據工程經驗，排煙(yan)(yan)(yan)(yan)主(zhu)管(guan)道內(nei)風(feng)(feng)速不(bu)能超過(guo)15m/s。否則在(zai)運行(xing)一個時期(qi)以后(hou)(如一年以后(hou))很容易造成(cheng)排煙(yan)(yan)(yan)(yan)系統(tong)不(bu)通(tong)暢。在(zai)油煙(yan)(yan)(yan)(yan)凈化器的(de)(de)運行(xing)實踐中(zhong)，大部分案例都(dou)是因排煙(yan)(yan)(yan)(yan)管(guan)道通(tong)風(feng)(feng)面積(ji)不(bu)足引起的(de)(de)不(bu)通(tong)暢，管(guan)道內(nei)氣(qi)(qi)體的(de)(de)流速都(dou)在(zai)15m/s以上。2、排煙(yan)(yan)(yan)(yan)管(guan)道由于要穿過(guo)建筑梁而使(shi)管(guan)道通(tong)風(feng)(feng)截(jie)面積(ji)變小，截(jie)面上阻(zu)力增加(jia)，造成(cheng)氣(qi)(qi)流不(bu)通(tong)暢。3、排煙(yan)(yan)(yan)(yan)管(guan)道在(zai)穿過(guo)建筑梁或躲避其它設備管(guan)道時，排煙(yan)(yan)(yan)(yan)管(guan)道中(zhong)的(de)(de)一段會低(di)于整體排煙(yan)(yan)(yan)(yan)管(guan)道平(ping)面。在(zai)使(shi)用一段時間后(hou)，由于油水混合(he)物(wu)會積(ji)聚(ju)在(zai)較低(di)的(de)(de)那段排煙(yan)(yan)(yan)(yan)管(guan)道中(zhong)，直接影響排煙(yan)(yan)(yan)(yan)通(tong)暢。4、不(bu)同樓(lou)層(ceng)的(de)(de)廚房油煙(yan)(yan)(yan)(yan)通(tong)過(guo)同一主(zhu)管(guan)道排出(chu)，離出(chu)口近的(de)(de)樓(lou)層(ceng)廚房排煙(yan)(yan)(yan)(yan)效果較好，而較低(di)樓(lou)層(ceng)的(de)(de)廚房排煙(yan)(yan)(yan)(yan)不(bu)通(tong)暢。

第四個就是(shi)(shi)重視煙(yan)(yan)(yan)道止(zhi)回(hui)閥(fa)(fa)的作用(yong)(yong)(yong)，煙(yan)(yan)(yan)道止(zhi)回(hui)閥(fa)(fa)能(neng)夠(gou)很(hen)好的避免油煙(yan)(yan)(yan)倒灌(guan)，煙(yan)(yan)(yan)道止(zhi)回(hui)閥(fa)(fa)結構(gou)簡單實(shi)用(yong)(yong)(yong)，便于(yu)(yu)安裝，使(shi)(shi)用(yong)(yong)(yong)后一(yi)定要注意定時清洗，這(zhe)樣就算能(neng)保持止(zhi)回(hui)閥(fa)(fa)的長期有效(xiao)運行。在特殊(shu)部分還可以(yi)用(yong)(yong)(yong)防火(huo)的止(zhi)回(hui)閥(fa)(fa)，保證排煙(yan)(yan)(yan)的安全(quan)。以(yi)上就是(shi)(shi)分享的煙(yan)(yan)(yan)道安裝的幾個技巧(qiao)，既能(neng)保證油煙(yan)(yan)(yan)的順利排出，又節約成(cheng)本降低污(wu)染，希望你能(neng)用(yong)(yong)(yong)到。商用(yong)(yong)(yong)廚房(fang)排煙(yan)(yan)(yan)系統之排煙(yan)(yan)(yan)管道的設(she)(she)計和安裝不(bu)合理，往(wang)往(wang)會(hui)造成(cheng)廚房(fang)排煙(yan)(yan)(yan)不(bu)通(tong)暢，直接影響油煙(yan)(yan)(yan)凈(jing)化(hua)器的使(shi)(shi)用(yong)(yong)(yong)。餐(can)飲廚房(fang)設(she)(she)備通(tong)風中產(chan)生問題(ti)的主要原因，一(yi)方(fang)面是(shi)(shi)由于(yu)(yu)廚房(fang)工藝(yi)設(she)(she)計與(yu)通(tong)風設(she)(she)計之間協調不(bu)夠(gou)，另一(yi)方(fang)面，是(shi)(shi)由于(yu)(yu)廚房(fang)設(she)(she)計缺乏(fa)經驗，設(she)(she)計不(bu)盡合理。