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鑒于軸流風(feng)(feng)(feng)機(ji)(ji)有紊(wen)流區的(de)(de)(de)(de)(de)(de)性(xing)能特(te)點(dian)(dian),在(zai)選型和使(shi)(shi)用時,需要(yao)注意以下兩點(dian)(dian):建議使(shi)(shi)用在(zai)空曠環(huan)境(jing)中(zhong)(zhong),軸流風(feng)(feng)(feng)機(ji)(ji)的(de)(de)(de)(de)(de)(de)輸入(ru)功率隨系統靜壓(ya)(ya)的(de)(de)(de)(de)(de)(de)增(zeng)大(da)而(er)增(zeng)大(da),而(er)在(zai)紊(wen)流區,輸入(ru)功率的(de)(de)(de)(de)(de)(de)增(zeng)大(da)幅(fu)度會更(geng)大(da)。因(yin)此,軸流風(feng)(feng)(feng)機(ji)(ji)一(yi)般多(duo)應(ying)用在(zai)有較大(da)空曠環(huan)境(jing)的(de)(de)(de)(de)(de)(de)場合下,可以使(shi)(shi)其工(gong)作在(zai)靜壓(ya)(ya)較低(di)的(de)(de)(de)(de)(de)(de)環(huan)境(jing)下,降(jiang)低(di)功耗,保(bao)證(zheng)穩定(ding)性(xing)和壽(shou)命。定(ding)期清(qing)(qing)理(li)風(feng)(feng)(feng)道(dao),當軸流風(feng)(feng)(feng)機(ji)(ji)應(ying)用在(zai)較為封閉(bi)的(de)(de)(de)(de)(de)(de)風(feng)(feng)(feng)道(dao)系統中(zhong)(zhong)時,長期運(yun)行后(hou)風(feng)(feng)(feng)道(dao)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)積灰(hui)、垃圾(ji)逐漸變多(duo),會使(shi)(shi)風(feng)(feng)(feng)道(dao)內的(de)(de)(de)(de)(de)(de)靜壓(ya)(ya)逐漸增(zeng)加(jia),使(shi)(shi)得(de)風(feng)(feng)(feng)機(ji)(ji)的(de)(de)(de)(de)(de)(de)運(yun)行工(gong)況點(dian)(dian)逐漸左移。這不僅會降(jiang)低(di)風(feng)(feng)(feng)機(ji)(ji)性(xing)能,更(geng)重要(yao)的(de)(de)(de)(de)(de)(de)是會增(zeng)加(jia)軸流風(feng)(feng)(feng)機(ji)(ji)進(jin)入(ru)紊(wen)流區的(de)(de)(de)(de)(de)(de)風(feng)(feng)(feng)險(xian)。因(yin)此必須要(yao)定(ding)期清(qing)(qing)理(li)風(feng)(feng)(feng)道(dao),保(bao)證(zheng)風(feng)(feng)(feng)機(ji)(ji)工(gong)況點(dian)(dian)不產生較大(da)偏移。
1.風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)程度(du)(du)安裝,邊(bian)長(chang)(chang)(chang)尺寸(cun)小于(yu)(yu)等(deng)于(yu)(yu)400mm,間(jian)(jian)距不(bu)(bu)應(ying)(ying)(ying)大于(yu)(yu)4m;大于(yu)(yu)400mm,不(bu)(bu)應(ying)(ying)(ying)大于(yu)(yu)3m;對(dui)于(yu)(yu)薄(bo)鋼板(ban)法(fa)蘭的(de)(de)(de)風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan),其支(zhi)、吊(diao)(diao)架(jia)間(jian)(jian)距不(bu)(bu)應(ying)(ying)(ying)大于(yu)(yu)3m。2.風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)垂直(zhi)安裝,間(jian)(jian)距不(bu)(bu)應(ying)(ying)(ying)大于(yu)(yu)4m,單根(gen)直(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)至(zhi)少(shao)應(ying)(ying)(ying)有2個(ge)固(gu)定點。3.支(zhi)、吊(diao)(diao)架(jia)不(bu)(bu)宜設(she)置在(zai)風(feng)(feng)(feng)口、閥門、檢討(tao)門及自控機構處,離(li)風(feng)(feng)(feng)口或(huo)插接管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)距離(li)不(bu)(bu)宜小于(yu)(yu)200mm。4.當程度(du)(du)懸吊(diao)(diao)的(de)(de)(de)主(zhu)、干風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)長(chang)(chang)(chang)度(du)(du)超過20m時,應(ying)(ying)(ying)設(she)置防止擺動固(gu)定點,每個(ge)系統不(bu)(bu)應(ying)(ying)(ying)少(shao)于(yu)(yu)1個(ge)。5.防火閥直(zhi)徑或(huo)長(chang)(chang)(chang)邊(bian)尺寸(cun)大于(yu)(yu)等(deng)于(yu)(yu)630mm時,宜設(she)獨立(li)支(zhi)、吊(diao)(diao)架(jia)。6.帶(dai)高效(xiao)過濾(lv)器的(de)(de)(de)送(song)風(feng)(feng)(feng)口,應(ying)(ying)(ying)采取可分離(li)調節高度(du)(du)的(de)(de)(de)吊(diao)(diao)桿(gan)。金屬風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)加(jia)(jia)(jia)固(gu):矩形風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)邊(bian)長(chang)(chang)(chang)大于(yu)(yu)630mm、保溫(wen)風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)邊(bian)長(chang)(chang)(chang)大于(yu)(yu)800mm,并且管(guan)(guan)(guan)(guan)(guan)(guan)(guan)段(duan)長(chang)(chang)(chang)度(du)(du)大于(yu)(yu)1250mm或(huo)低壓風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)單邊(bian)平面積大于(yu)(yu)1.2m2、中(zhong)、高壓風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)大于(yu)(yu)1.0m2中(zhong),均應(ying)(ying)(ying)采用(yong)加(jia)(jia)(jia)固(gu)辦法(fa)。角(jiao)(jiao)鋼、加(jia)(jia)(jia)固(gu)筋的(de)(de)(de)加(jia)(jia)(jia)固(gu),其高度(du)(du)應(ying)(ying)(ying)小于(yu)(yu)或(huo)等(deng)于(yu)(yu)風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)寬度(du)(du)。角(jiao)(jiao)鋼、加(jia)(jia)(jia)固(gu)筋與風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)鉚接的(de)(de)(de)間(jian)(jian)隔(ge)應(ying)(ying)(ying)均勻,不(bu)(bu)應(ying)(ying)(ying)大于(yu)(yu)220mm。.對(dui)于(yu)(yu)凈(jing)化(hua)空調系統,不(bu)(bu)應(ying)(ying)(ying)在(zai)風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)內設(she)加(jia)(jia)(jia)固(gu)框及加(jia)(jia)(jia)固(gu)筋。
防(fang)(fang)(fang)(fang)火(huo)閥:采用(yong)70℃溫(wen)度熔斷器(qi)自動(dong)關閉(防(fang)(fang)(fang)(fang)火(huo)).可輸(shu)(shu)出聯動(dong)訊號,用(yong)于通風(feng)空調(diao)系統風(feng)管(guan)(guan)(guan)(guan)內,防(fang)(fang)(fang)(fang)止(zhi)火(huo)勢(shi)沿風(feng)管(guan)(guan)(guan)(guan)蔓延。排(pai)(pai)煙防(fang)(fang)(fang)(fang)火(huo)閥:電訊號開啟(qi),手動(dong)開啟(qi),輸(shu)(shu)出動(dong)作電訊號.用(yong)于排(pai)(pai)煙風(feng)機吸入口(kou)管(guan)(guan)(guan)(guan)道或排(pai)(pai)煙支(zhi)管(guan)(guan)(guan)(guan)上。采用(yong)280℃溫(wen)度熔斷器(qi)重(zhong)新關閉。防(fang)(fang)(fang)(fang)火(huo)閥——通風(feng)空調(diao)系統70℃:風(feng)管(guan)(guan)(guan)(guan)穿(chuan)越防(fang)(fang)(fang)(fang)火(huo)分(fen)區(qu)、隔(ge)墻樓板、水(shui)平(ping)風(feng)管(guan)(guan)(guan)(guan)的水(shui)平(ping)管(guan)(guan)(guan)(guan)段(duan)上(系統獨(du)立設置可不設)、公共建筑豎向排(pai)(pai)風(feng)管(guan)(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan)(guan);150℃:公共建筑廚房排(pai)(pai)油煙管(guan)(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan)(guan);排(pai)(pai)煙防(fang)(fang)(fang)(fang)火(huo)閥——消(xiao)防(fang)(fang)(fang)(fang)排(pai)(pai)煙系統280℃:消(xiao)防(fang)(fang)(fang)(fang)排(pai)(pai)煙管(guan)(guan)(guan)(guan)道;
一、風管及部件安裝的有關規定1.風管安裝的強制規定,當風管穿過需要封閉的防火、防爆墻體或樓板時,應設預埋管或防護套管。套管鋼板厚度不應小于1.6mm,風管與防護套管之間應用不燃且對人體無害的柔性材料封堵,風道應安裝設防火閥。風管內嚴禁各種管道、電線敷設及穿越;輸送含有易燃易爆氣體或安裝在易燃易爆環境的風管系統,應有良好的接地,通過生活區、生產房間時必須嚴密,不得設接口;推薦通風管配件室外主管的固定拉索嚴禁拉在避雷針或避雷網上。輸送溫度高于80℃的空氣的風管,應按設計要求采取防護措施。2.風管安裝的一般規定風管安裝宜在建筑圍護結構施工完畢、場所清理后進行。凈化空調風管應在安裝部位地面做好,墻面抹灰工序完畢,室內無飛塵或有防塵措施后進行。南岸通風管配件安(an)(an)裝(zhuang)風管前應清(qing)除管內外雜(za)物,并(bing)做好清(qing)潔和保護工作(zuo),風管安(an)(an)裝(zhuang)的位置、標高和走向等應符合設計(ji)要求,現(xian)場風管接口的配(pei)置不得縮小有效(xiao)截面。