排(pai)(pai)煙(yan)(yan)(yan)(yan)風(feng)(feng)機與加(jia)壓送風(feng)(feng)機的(de)(de)不(bu)同(tong)在于：排(pai)(pai)煙(yan)(yan)(yan)(yan)風(feng)(feng)機應(ying)保證在280℃的(de)(de)環境(jing)條件下能連續工(gong)作不(bu)少(shao)于30min。多(duo)(duo)層(ceng)建筑比較(jiao)(jiao)簡單，受外部條件影響較(jiao)(jiao)少(shao)，人防(fang)工(gong)程排(pai)(pai)煙(yan)(yan)(yan)(yan)，一(yi)(yi)般(ban)采用(yong)自然通風(feng)(feng)方式(shi)較(jiao)(jiao)多(duo)(duo)。排(pai)(pai)煙(yan)(yan)(yan)(yan)口的(de)(de)風(feng)(feng)速不(bu)宜大于10m/s。排(pai)(pai)煙(yan)(yan)(yan)(yan)系統(tong)(tong)、①，同(tong)一(yi)(yi)防(fang)煙(yan)(yan)(yan)(yan)分區的(de)(de)兩只獨立(li)的(de)(de)火(huo)(huo)災(zai)探(tan)(tan)測器報警(jing)(jing)信號或一(yi)(yi)只火(huo)(huo)災(zai)探(tan)(tan)測器與一(yi)(yi)只手(shou)動火(huo)(huo)災(zai)報警(jing)(jing)按鈕的(de)(de)報警(jing)(jing)信號——開啟排(pai)(pai)煙(yan)(yan)(yan)(yan)口，安徽排(pai)(pai)煙(yan)(yan)(yan)(yan)工(gong)程，排(pai)(pai)煙(yan)(yan)(yan)(yan)窗或排(pai)(pai)煙(yan)(yan)(yan)(yan)閥，停(ting)止該防(fang)煙(yan)(yan)(yan)(yan)分區的(de)(de)空(kong)氣調節(jie)系統(tong)(tong)。房(fang)(fang)排(pai)(pai)煙(yan)(yan)(yan)(yan)系統(tong)(tong)的(de)(de)構成部件很多(duo)(duo)且(qie)每一(yi)(yi)個部件都有著不(bu)可忽視的(de)(de)作用(yong)，國(guo)內(nei)的(de)(de)廚房(fang)(fang)排(pai)(pai)煙(yan)(yan)(yan)(yan)系統(tong)(tong)生產(chan)廠家會根據酒店的(de)(de)實際需求來選擇合適的(de)(de)類型和運行方式(shi)，

風(feng)(feng)機軸(zhou)承更(geng)換方法(fa)：1. 當(dang)離心通(tong)風(feng)(feng)機挺穩后(hou)(hou)，關閉該風(feng)(feng)機的(de)(de)總閘，通(tong)知電氣人員拆除風(feng)(feng)機上的(de)(de)溫(wen)度，振動等與(yu)離心通(tong)風(feng)(feng)機相連的(de)(de)電器(qi)設備，做好(hao)標(biao)識(shi)，車(che)間排煙工(gong)程，妥善保存(cun)。2. 脫開聯軸(zhou)器(qi)，拆掉(diao)風(feng)(feng)機外殼法(fa)蘭上的(de)(de)定(ding)位銷，去(qu)掉(diao)螺栓3. 拆掉(diao)軸(zhou)承座與(yu)風(feng)(feng)機上半(ban)(ban)殼的(de)(de)連接(jie)螺栓，用吊車(che)吊開上半(ban)(ban)殼；然后(hou)(hou)拆下(xia)前后(hou)(hou)軸(zhou)承座的(de)(de)上半(ban)(ban)并吊走；注(zhu)意起吊時(shi)必(bi)須盡量(liang)保持水(shui)平垂直起吊，如(ru)果斜吊有(you)可能損(sun)壞里面的(de)(de)部件(jian)(jian)。4. 從聯軸(zhou)器(qi)端逐一向后(hou)(hou)檢查核(he)對(dui)部件(jian)(jian)有(you)無損(sun)壞，尺(chi)寸，排煙工(gong)程合同，間隙有(you)無偏差。發現(xian)有(you)問(wen)題的(de)(de)記錄下(xia)來，然后(hou)(hou)對(dui)整個轉子(zi)在風(feng)(feng)機里的(de)(de)位置包括前后(hou)(hou)軸(zhou)承座內的(de)(de)各個部件(jian)(jian)做好(hao)標(biao)識(shi)，吊出轉子(zi)。

排(pai)(pai)(pai)煙風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)出(chu)風(feng)(feng)(feng)(feng)(feng)口與加壓(ya)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)的(de)進風(feng)(feng)(feng)(feng)(feng)口垂(chui)直間(jian)隔(ge)小于(yu)(yu)3米(mi)；排(pai)(pai)(pai)煙風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)出(chu)風(feng)(feng)(feng)(feng)(feng)口低于(yu)(yu)加壓(ya)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)的(de)進風(feng)(feng)(feng)(feng)(feng)口；排(pai)(pai)(pai)煙風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)出(chu)風(feng)(feng)(feng)(feng)(feng)口與加壓(ya)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)的(de)進風(feng)(feng)(feng)(feng)(feng)口在同一面上時間(jian)隔(ge)小于(yu)(yu)10米(mi)；山東排(pai)(pai)(pai)煙口與送(song)風(feng)(feng)(feng)(feng)(feng)口間(jian)隔(ge)小于(yu)(yu)5米(mi)；風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)操控(kong)箱(xiang)未設(she)置(zhi)(zhi)在風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)就近(jin)方位；正壓(ya)送(song)風(feng)(feng)(feng)(feng)(feng)口進口及機(ji)(ji)械排(pai)(pai)(pai)煙體系出(chu)口防雨百葉均(jun)未設(she)置(zhi)(zhi)在室外與大氣相通；電(dian)機(ji)(ji)外置(zhi)(zhi)式離(li)心式風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)未設(she)置(zhi)(zhi)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)房。