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按照氣(qi)流(liu)(liu)(liu)運動(dong)來進行風(feng)(feng)(feng)機(ji)(ji)分類的(de)(de)有:1離(li)心風(feng)(feng)(feng)機(ji)(ji),氣(qi)流(liu)(liu)(liu)進入(ru)(ru)旋轉(zhuan)的(de)(de)葉(xie)(xie)片通道(dao),在(zai)離(li)心力(li)作用下氣(qi)體被(bei)壓縮并沿(yan)(yan)(yan)著(zhu)半徑方向(xiang)流(liu)(liu)(liu)動(dong)。2軸(zhou)(zhou)流(liu)(liu)(liu)風(feng)(feng)(feng)機(ji)(ji)氣(qi)流(liu)(liu)(liu)軸(zhou)(zhou)向(xiang)進入(ru)(ru)風(feng)(feng)(feng)機(ji)(ji)葉(xie)(xie)輪(lun)后,在(zai)旋轉(zhuan)葉(xie)(xie)片的(de)(de)流(liu)(liu)(liu)道(dao)中(zhong)沿(yan)(yan)(yan)著(zhu)軸(zhou)(zhou)線(xian)方向(xiang)流(liu)(liu)(liu)動(dong)的(de)(de)風(feng)(feng)(feng)機(ji)(ji)。相對于離(li)心風(feng)(feng)(feng)機(ji)(ji),軸(zhou)(zhou)流(liu)(liu)(liu)風(feng)(feng)(feng)機(ji)(ji)具有流(liu)(liu)(liu)量大、體積(ji)小、壓頭低(di)的(de)(de)特點,用于有灰(hui)塵和(he)腐蝕性氣(qi)體場合時需注意。3斜流(liu)(liu)(liu)式(shi)(shi)(混流(liu)(liu)(liu)式(shi)(shi))風(feng)(feng)(feng)機(ji)(ji),在(zai)風(feng)(feng)(feng)機(ji)(ji)的(de)(de)葉(xie)(xie)輪(lun)中(zhong),氣(qi)流(liu)(liu)(liu)的(de)(de)方向(xiang)處于軸(zhou)(zhou)流(liu)(liu)(liu)式(shi)(shi)之間,近似沿(yan)(yan)(yan)錐流(liu)(liu)(liu)動(dong),故可稱為(wei)斜流(liu)(liu)(liu)式(shi)(shi)(混流(liu)(liu)(liu)式(shi)(shi))風(feng)(feng)(feng)機(ji)(ji)。這種風(feng)(feng)(feng)機(ji)(ji)的(de)(de)壓力(li)系數比軸(zhou)(zhou)流(liu)(liu)(liu)式(shi)(shi)風(feng)(feng)(feng)機(ji)(ji)高(gao),而流(liu)(liu)(liu)量系數比離(li)心式(shi)(shi)風(feng)(feng)(feng)機(ji)(ji)高(gao)。
鑒(jian)于軸(zhou)流(liu)風(feng)(feng)機(ji)有紊(wen)(wen)流(liu)區(qu)的(de)(de)(de)性(xing)能特(te)點,在(zai)選型和使用時(shi),需(xu)要(yao)注意(yi)以下(xia)兩點:建議使用在(zai)空(kong)曠環境(jing)中(zhong),軸(zhou)流(liu)風(feng)(feng)機(ji)的(de)(de)(de)輸入(ru)功(gong)率(lv)隨(sui)系統靜(jing)壓的(de)(de)(de)增(zeng)大(da)(da)而(er)增(zeng)大(da)(da),而(er)在(zai)紊(wen)(wen)流(liu)區(qu),輸入(ru)功(gong)率(lv)的(de)(de)(de)增(zeng)大(da)(da)幅(fu)度會(hui)更大(da)(da)。因此,軸(zhou)流(liu)風(feng)(feng)機(ji)一般多(duo)應用在(zai)有較大(da)(da)空(kong)曠環境(jing)的(de)(de)(de)場(chang)合(he)下(xia),可以使其工作(zuo)在(zai)靜(jing)壓較低的(de)(de)(de)環境(jing)下(xia),降(jiang)低功(gong)耗,保(bao)(bao)證穩定(ding)性(xing)和壽命。定(ding)期清(qing)理(li)風(feng)(feng)道(dao),當軸(zhou)流(liu)風(feng)(feng)機(ji)應用在(zai)較為封閉的(de)(de)(de)風(feng)(feng)道(dao)系統中(zhong)時(shi),長期運(yun)行后風(feng)(feng)道(dao)中(zhong)的(de)(de)(de)積(ji)灰、垃圾(ji)逐漸(jian)變多(duo),會(hui)使風(feng)(feng)道(dao)內的(de)(de)(de)靜(jing)壓逐漸(jian)增(zeng)加(jia),使得風(feng)(feng)機(ji)的(de)(de)(de)運(yun)行工況點逐漸(jian)左移。這不僅會(hui)降(jiang)低風(feng)(feng)機(ji)性(xing)能,更重要(yao)的(de)(de)(de)是會(hui)增(zeng)加(jia)軸(zhou)流(liu)風(feng)(feng)機(ji)進入(ru)紊(wen)(wen)流(liu)區(qu)的(de)(de)(de)風(feng)(feng)險。因此必須要(yao)定(ding)期清(qing)理(li)風(feng)(feng)道(dao),保(bao)(bao)證風(feng)(feng)機(ji)工況點不產生較大(da)(da)偏移。
什么是風管,常見風管有哪些類型,風管主要指中央空調系統的通風管道,它常常被忽視,但不銹鋼通風管道卻是空調系統的重要組成部分。風管是由薄鋼板、鋁板、硬聚氯乙烯板、玻璃鋼以及其它復合材料等制成的,值得信賴的不銹鋼通風管道用于(yu)輸送空(kong)氣和(he)空(kong)氣混合(he)物(wu)的各種管(guan)(guan)(guan)道的總稱。1、按照材(cai)質可(ke)分為(wei):金(jin)屬風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、非(fei)金(jin)屬風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)。其中:(1)金(jin)屬風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)又可(ke)分為(wei):鋼(gang)(gang)板風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、鋁板風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、不銹鋼(gang)(gang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)等;(2)非(fei)金(jin)屬風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)可(ke)以分為(wei):硬(ying)聚氯(lv)乙烯風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、有機玻(bo)璃風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、無機玻(bo)璃風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、玻(bo)璃鋼(gang)(gang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)以及其它復合(he)材(cai)料風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)等;2、按照風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)外形可(ke)分為(wei):圓形風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、矩形風(feng)(feng)(feng)(feng)管(guan)(guan)(guan);3、按照通風(feng)(feng)(feng)(feng)空(kong)調系統工作壓(ya)力可(ke)分為(wei):高壓(ya)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、中壓(ya)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)、低壓(ya)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)三個(ge)類別,
現階段(duan)是(shi)(shi)(shi)很多雞(ji)舍(she)都配(pei)備(bei)了(le)通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan),我是(shi)(shi)(shi)2013年開始用(yong)的(de)通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan),在(zai)使(shi)用(yong)過(guo)(guo)程中,曾經(jing)出(chu)(chu)現過(guo)(guo)很多問題,現總結一(yi)(yi)下(xia),歡迎拍磚交流。一(yi)(yi),通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)的(de)作用(yong)。1降低操作負壓(ya)。冬季沒(mei)安裝通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)的(de)雞(ji)舍(she),使(shi)用(yong)小窗(chuang)通(tong)(tong)風(feng)(feng)(feng)(feng),尤其是(shi)(shi)(shi)跨度大的(de)雞(ji)舍(she)為了(le)導(dao)風(feng)(feng)(feng)(feng)合(he)理安全(quan),使(shi)用(yong)高負壓(ya)通(tong)(tong)風(feng)(feng)(feng)(feng)。而(er)使(shi)用(yong)通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)道,由于進(jin)風(feng)(feng)(feng)(feng)在(zai)管(guan)(guan)道內(nei)基本不擴(kuo)散,低負壓(ya)下(xia)都是(shi)(shi)(shi)按照(zhao)風(feng)(feng)(feng)(feng)管(guan)(guan)方向,依次從開口處出(chu)(chu)風(feng)(feng)(feng)(feng)。2位(wei)置(zhi)(zhi)(zhi)高,出(chu)(chu)風(feng)(feng)(feng)(feng)均勻。進(jin)風(feng)(feng)(feng)(feng)雖(sui)然在(zai)管(guan)(guan)道內(nei)沒(mei)有(you)預熱(re),但(dan)下(xia)落位(wei)置(zhi)(zhi)(zhi)高,向下(xia)擴(kuo)散時間就是(shi)(shi)(shi)預熱(re)過(guo)(guo)程。3跟風(feng)(feng)(feng)(feng)機配(pei)合(he)合(he)理配(pei)置(zhi)(zhi)(zhi),在(zai)初(chu)始開啟(qi)風(feng)(feng)(feng)(feng)機階段(duan),由于設計問題導(dao)致進(jin)風(feng)(feng)(feng)(feng)窗(chuang)使(shi)用(yong)不安全(quan),可以利(li)用(yong)通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)過(guo)(guo)渡。
消(xiao)(xiao)防(fang)排(pai)煙(yan)風機首先應該滿足(zu)溫(wen)度(du)和(he)時(shi)(shi)間的(de)特性(xing)(xing),即國家規定(ding)280℃/0.5h;其(qi)次,在(zai)一(yi)般環境溫(wen)度(du)下(xia),可以保證有效的(de)排(pai)煙(yan)控制量。此外還要求(qiu)消(xiao)(xiao)防(fang)排(pai)煙(yan)風機能(neng)(neng)夠(gou)進行周期性(xing)(xing)的(de)實驗,能(neng)(neng)夠(gou)發現(xian)其(qi)中的(de)不足(zu),并加以改進;可以適用(yong)(yong)各種(zhong)通風要求(qiu)的(de)管道,便于(yu)安裝與使用(yong)(yong)。消(xiao)(xiao)防(fang)排(pai)煙(yan)風機的(de)性(xing)(xing)能(neng)(neng)優良(liang)、耐高溫(wen)性(xing)(xing)能(neng)(neng)良(liang)好、效率高、占地比(bi)離心風機少、高溫(wen)性(xing)(xing)能(neng)(neng)優良(liang)。消(xiao)(xiao)防(fang)排(pai)煙(yan)風機能(neng)(neng)在(zai)300℃高溫(wen)條件(jian)下(xia)連(lian)續(xu)運(yun)行60分鐘以上,100℃溫(wen)度(du)條件(jian)下(xia)連(lian)續(xu)20小時(shi)(shi)不損(sun)壞,應用(yong)(yong)范圍(wei)廣,可根據高級民用(yong)(yong)建筑(zhu)的(de)不同要求(qiu),采(cai)用(yong)(yong)變速(su)或多速(su)的(de)驅動型式,消(xiao)(xiao)防(fang)排(pai)煙(yan)風機廣泛(fan)應用(yong)(yong)于(yu)高級民用(yong)(yong)建筑(zhu)、烤(kao)箱、地下(xia)車庫、隧道等場合(he)。安裝方便,可直(zhi)接和(he)墻(qiang)壁安裝,安裝可采(cai)用(yong)(yong)垂直(zhi)式、水平式或吊裝式,很大程度(du)上節省了占地面積。