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1.風(feng)管(guan)(guan)(guan)(guan)程度(du)(du)(du)安裝,邊長(chang)(chang)(chang)尺寸小于(yu)(yu)(yu)(yu)(yu)(yu)等(deng)(deng)于(yu)(yu)(yu)(yu)(yu)(yu)400mm,間(jian)(jian)距不(bu)(bu)(bu)應(ying)(ying)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)4m;大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)400mm,不(bu)(bu)(bu)應(ying)(ying)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)3m;對(dui)于(yu)(yu)(yu)(yu)(yu)(yu)薄(bo)鋼板法(fa)(fa)蘭的(de)風(feng)管(guan)(guan)(guan)(guan),其支、吊架間(jian)(jian)距不(bu)(bu)(bu)應(ying)(ying)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)3m。2.風(feng)管(guan)(guan)(guan)(guan)垂(chui)直(zhi)(zhi)安裝,間(jian)(jian)距不(bu)(bu)(bu)應(ying)(ying)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)4m,單(dan)根直(zhi)(zhi)管(guan)(guan)(guan)(guan)至少應(ying)(ying)有2個(ge)固定(ding)點(dian)。3.支、吊架不(bu)(bu)(bu)宜(yi)(yi)設(she)(she)置在風(feng)口、閥門、檢討門及(ji)自(zi)控機(ji)構(gou)處,離風(feng)口或(huo)(huo)插(cha)接管(guan)(guan)(guan)(guan)的(de)距離不(bu)(bu)(bu)宜(yi)(yi)小于(yu)(yu)(yu)(yu)(yu)(yu)200mm。4.當程度(du)(du)(du)懸吊的(de)主、干風(feng)管(guan)(guan)(guan)(guan)長(chang)(chang)(chang)度(du)(du)(du)超過20m時,應(ying)(ying)設(she)(she)置防(fang)(fang)止擺(bai)動固定(ding)點(dian),每個(ge)系統(tong)不(bu)(bu)(bu)應(ying)(ying)少于(yu)(yu)(yu)(yu)(yu)(yu)1個(ge)。5.防(fang)(fang)火閥直(zhi)(zhi)徑或(huo)(huo)長(chang)(chang)(chang)邊尺寸大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)等(deng)(deng)于(yu)(yu)(yu)(yu)(yu)(yu)630mm時,宜(yi)(yi)設(she)(she)獨立支、吊架。6.帶高效過濾器的(de)送風(feng)口,應(ying)(ying)采取可(ke)分離調節高度(du)(du)(du)的(de)吊桿。金(jin)屬風(feng)管(guan)(guan)(guan)(guan)的(de)加(jia)固:矩形風(feng)管(guan)(guan)(guan)(guan)邊長(chang)(chang)(chang)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)630mm、保溫風(feng)管(guan)(guan)(guan)(guan)邊長(chang)(chang)(chang)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)800mm,并且(qie)管(guan)(guan)(guan)(guan)段長(chang)(chang)(chang)度(du)(du)(du)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)1250mm或(huo)(huo)低壓風(feng)管(guan)(guan)(guan)(guan)單(dan)邊平面積大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)1.2m2、中、高壓風(feng)管(guan)(guan)(guan)(guan)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)1.0m2中,均應(ying)(ying)采用(yong)加(jia)固辦法(fa)(fa)。角(jiao)鋼、加(jia)固筋的(de)加(jia)固,其高度(du)(du)(du)應(ying)(ying)小于(yu)(yu)(yu)(yu)(yu)(yu)或(huo)(huo)等(deng)(deng)于(yu)(yu)(yu)(yu)(yu)(yu)風(feng)管(guan)(guan)(guan)(guan)的(de)寬(kuan)度(du)(du)(du)。角(jiao)鋼、加(jia)固筋與風(feng)管(guan)(guan)(guan)(guan)鉚接的(de)間(jian)(jian)隔應(ying)(ying)均勻(yun),不(bu)(bu)(bu)應(ying)(ying)大(da)(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)220mm。.對(dui)于(yu)(yu)(yu)(yu)(yu)(yu)凈化空調系統(tong),不(bu)(bu)(bu)應(ying)(ying)在風(feng)管(guan)(guan)(guan)(guan)內設(she)(she)加(jia)固框及(ji)加(jia)固筋。
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;值得信賴的電動防火閥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。云南電動防火閥安裝風(feng)管(guan)前應清除管(guan)內外雜物,并(bing)做好清潔和保護工作,風(feng)管(guan)安裝的位置、標高和走向等應符合設(she)計(ji)要求,現場風(feng)管(guan)接口的配置不得(de)縮小有效截面(mian)。
鑒于軸(zhou)(zhou)(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)機(ji)(ji)有(you)紊流(liu)區(qu)的(de)(de)(de)(de)(de)(de)性(xing)(xing)能(neng)特點(dian)(dian),在(zai)選型和使用(yong)時,需要注意以下兩點(dian)(dian):建議使用(yong)在(zai)空曠環境中,軸(zhou)(zhou)(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)機(ji)(ji)的(de)(de)(de)(de)(de)(de)輸(shu)入功率隨系(xi)統(tong)靜壓的(de)(de)(de)(de)(de)(de)增(zeng)(zeng)大而增(zeng)(zeng)大,而在(zai)紊流(liu)區(qu),輸(shu)入功率的(de)(de)(de)(de)(de)(de)增(zeng)(zeng)大幅度會更大。因(yin)此,軸(zhou)(zhou)(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)機(ji)(ji)一(yi)般多(duo)應用(yong)在(zai)有(you)較大空曠環境的(de)(de)(de)(de)(de)(de)場合下,可(ke)以使其工作(zuo)在(zai)靜壓較低(di)的(de)(de)(de)(de)(de)(de)環境下,降低(di)功耗(hao),保(bao)證穩定性(xing)(xing)和壽命。定期清(qing)(qing)理風(feng)(feng)(feng)(feng)道,當軸(zhou)(zhou)(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)機(ji)(ji)應用(yong)在(zai)較為封閉的(de)(de)(de)(de)(de)(de)風(feng)(feng)(feng)(feng)道系(xi)統(tong)中時,長期運行后風(feng)(feng)(feng)(feng)道中的(de)(de)(de)(de)(de)(de)積灰(hui)、垃圾逐(zhu)漸(jian)(jian)變(bian)多(duo),會使風(feng)(feng)(feng)(feng)道內的(de)(de)(de)(de)(de)(de)靜壓逐(zhu)漸(jian)(jian)增(zeng)(zeng)加,使得風(feng)(feng)(feng)(feng)機(ji)(ji)的(de)(de)(de)(de)(de)(de)運行工況點(dian)(dian)逐(zhu)漸(jian)(jian)左移(yi)。這不僅會降低(di)風(feng)(feng)(feng)(feng)機(ji)(ji)性(xing)(xing)能(neng),更重(zhong)要的(de)(de)(de)(de)(de)(de)是會增(zeng)(zeng)加軸(zhou)(zhou)(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)機(ji)(ji)進入紊流(liu)區(qu)的(de)(de)(de)(de)(de)(de)風(feng)(feng)(feng)(feng)險(xian)。因(yin)此必須(xu)要定期清(qing)(qing)理風(feng)(feng)(feng)(feng)道,保(bao)證風(feng)(feng)(feng)(feng)機(ji)(ji)工況點(dian)(dian)不產生較大偏移(yi)。
確保通(tong)風(feng)效果(guo):高(gao)(gao)溫(wen)消防(fang)(fang)排(pai)煙風(feng)機的(de)(de)使(shi)(shi)用(yong)(yong)介質本身溫(wen)度(du)相(xiang)對較(jiao)高(gao)(gao),且(qie)(qie)自(zi)身的(de)(de)運(yun)轉也是會(hui)產生(sheng)一定的(de)(de)溫(wen)度(du),若是將(jiang)其(qi)放在密(mi)封環(huan)(huan)(huan)境(jing)中(zhong)(zhong),那么(me)很(hen)容(rong)易(yi)就會(hui)導(dao)致高(gao)(gao)溫(wen)現(xian)象(xiang)(xiang)發(fa)生(sheng),針(zhen)對于這(zhe)種情況在前期選擇安(an)裝環(huan)(huan)(huan)境(jing)時就應(ying)(ying)該要(yao)(yao)多注意,好是能夠將(jiang)其(qi)放在通(tong)風(feng)效果(guo)較(jiao)好的(de)(de)環(huan)(huan)(huan)境(jing)中(zhong)(zhong),通(tong)過對流運(yun)動來(lai)(lai)有效降低溫(wen)度(du),這(zhe)是可以有效的(de)(de)防(fang)(fang)止(zhi)高(gao)(gao)溫(wen)現(xian)象(xiang)(xiang)的(de)(de)發(fa)生(sheng)。確保電(dian)流大(da)小合適(shi):消防(fang)(fang)排(pai)煙風(feng)機的(de)(de)使(shi)(shi)用(yong)(yong)還(huan)是要(yao)(yao)注意電(dian)流問題,是應(ying)(ying)該要(yao)(yao)防(fang)(fang)止(zhi)電(dian)流過大(da)現(xian)象(xiang)(xiang)發(fa)生(sheng),否則(ze)會(hui)讓在運(yun)行(xing)中(zhong)(zhong)會(hui)因為電(dian)流過大(da)而(er)產生(sheng)較(jiao)多的(de)(de)電(dian)阻,而(er)這(zhe)也是會(hui)導(dao)致高(gao)(gao)溫(wen)現(xian)象(xiang)(xiang)發(fa)生(sheng)。因為高(gao)(gao)溫(wen)會(hui)直(zhi)接(jie)影響著消防(fang)(fang)排(pai)煙風(feng)機的(de)(de)使(shi)(shi)用(yong)(yong),因此在日常使(shi)(shi)用(yong)(yong)中(zhong)(zhong)就應(ying)(ying)該要(yao)(yao)采(cai)取(qu)措施來(lai)(lai)有效的(de)(de)防(fang)(fang)止(zhi)高(gao)(gao)溫(wen)現(xian)象(xiang)(xiang)發(fa)生(sheng),且(qie)(qie)在高(gao)(gao)溫(wen)之后要(yao)(yao)采(cai)取(qu)措施來(lai)(lai)降溫(wen),以確保安(an)全。