過(guo)(guo)濾(lv)(lv)(lv)消聲段：經過(guo)(guo)前端處(chu)理后(hou)，去除了大部分油(you)(you)煙(yan)(yan)，而(er)逃逸(yi)的(de)(de)微米級油(you)(you)煙(yan)(yan)被后(hou)置的(de)(de)過(guo)(guo)濾(lv)(lv)(lv)段（粗過(guo)(guo)濾(lv)(lv)(lv)和精過(guo)(guo)濾(lv)(lv)(lv)）處(chu)理后(hou)大部分被過(guo)(guo)濾(lv)(lv)(lv)，余下的(de)(de)亞微米級的(de)(de)油(you)(you)霧微粒(li)和煙(yan)(yan)氣中(zhong)有(you)毒有(you)害物質及異味等進(jin)入(ru)低溫等離子體(ti)(ti)(ti)凈(jing)(jing)化段處(chu)理。離心分離段：采用機(ji)械除油(you)(you)技術，利(li)用風機(ji)氣體(ti)(ti)(ti)動力(li)進(jin)行凈(jing)(jing)化油(you)(you)煙(yan)(yan)。通過(guo)(guo)流(liu)體(ti)(ti)(ti)力(li)學的(de)(de)雙向流(liu)理論在(zai)葉輪內(nei)部實現油(you)(you)煙(yan)(yan)分離。通過(guo)(guo)改(gai)變葉片(pian)(pian)的(de)(de)角度和葉片(pian)(pian)的(de)(de)形(xing)式，使(shi)油(you)(you)煙(yan)(yan)分子在(zai)葉輪盤(pan)、片(pian)(pian)上撞擊聚集。使(shi)油(you)(you)煙(yan)(yan)呈微粒(li)油(you)(you)霧狀，被離心力(li)甩入(ru)箱體(ti)(ti)(ti)內(nei)壁(bi)，由漏油(you)(you)管流(liu)出。

多葉(xie)排(pai)煙(yan)(yan)口PYK-3 I II型9(SD)通(tong)常用于(yu)安裝于(yu)樓新梯前(qian)室、排(pai)煙(yan)(yan)豎井的墻上，排(pai)煙(yan)(yan)管道(dao)(dao)凈化工程，亦可(ke)安裝在(zai)排(pai)煙(yan)(yan)系(xi)統(tong)管道(dao)(dao)側面或風道(dao)(dao)末端。多葉(xie)排(pai)煙(yan)(yan)口一般安裝在(zai)過道(dao)(dao)或防煙(yan)(yan)前(qian)室，平時常閉，發生(sheng)火災時煙(yan)(yan)感探頭發出火警信號，控制中心(xin)給閥(fa)上電磁(ci)鐵接(jie)通(tong)電信號使閥(fa)門迅速打開，也可(ke)人手動迅速打開閥(fa)門進行排(pai)煙(yan)(yan)。

防串煙(yan)(yan)(yan)(yan)(yan)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)涉及(ji)一種(zhong)安裝(zhuang)在民用(yong)住宅(zhai)墻體內的(de)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)，由煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)和煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)接頭構成。煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)接頭為(wei)長方(fang)體形(xing)，里端(duan)垂(chui)直(zhi)方(fang)向開有(you)方(fang)形(xing)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)孔，外端(duan)上(shang)部(bu)和下(xia)部(bu)分別(bie)開有(you)與煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)孔垂(chui)直(zhi)連通(tong)的(de)煙(yan)(yan)(yan)(yan)(yan)筒孔和掏灰孔。煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)由兩節以上(shang)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)管(guan)(guan)首尾相接而成，煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)管(guan)(guan)為(wei)兩端(duan)開口的(de)方(fang)形(xing)長管(guan)(guan)，下(xia)端(duan)為(wei)平口，上(shang)端(duan)帶有(you)與上(shang)一節煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)管(guan)(guan)下(xia)端(duan)平口相配合(he)的(de)方(fang)形(xing)子口。本實用(yong)新型(xing)安裝(zhuang)方(fang)便可靠，接口嚴密，可有(you)效防止串煙(yan)(yan)(yan)(yan)(yan)，除可廣泛用(yong)作(zuo)民用(yong)住宅(zhai)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)道(dao)(dao)(dao)外，還可用(yong)作(zuo)風(feng)道(dao)(dao)(dao)。