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1、70℃防(fang)(fang)火(huo)閥(fa)(fa)(fa)用(yong)(yong)在空調(diao)送(song)風(feng)、通(tong)風(feng)系統(tong)(tong)管(guan)道上;平(ping)時(shi)(shi)常開,發生(sheng)火(huo)災時(shi)(shi)關(guan)閉(bi)(bi),聯鎖風(feng)機,使風(feng)機關(guan)閉(bi)(bi);2、280℃防(fang)(fang)火(huo)閥(fa)(fa)(fa)用(yong)(yong)在排煙(yan)(yan)系統(tong)(tong)管(guan)道上,平(ping)時(shi)(shi)常開,發生(sheng)火(huo)災時(shi)(shi)排煙(yan)(yan),當(dang)煙(yan)(yan)氣溫度達到280度時(shi)(shi),防(fang)(fang)火(huo)閥(fa)(fa)(fa)關(guan)閉(bi)(bi),聯鎖風(feng)機關(guan)閉(bi)(bi);3、280℃防(fang)(fang)火(huo)閥(fa)(fa)(fa)應為常開,又叫高溫防(fang)(fang)火(huo)閥(fa)(fa)(fa),一般(ban)安裝在有高溫環(huan)境的通(tong)風(feng)管(guan)道中(zhong),當(dang)溫度到達280℃后易熔合金(jin)熔化,閥(fa)(fa)(fa)門(men)關(guan)閉(bi)(bi),同時(shi)(shi)可以用(yong)(yong)24V電信號控(kong)制。如果說是280排煙(yan)(yan)防(fang)(fang)火(huo)閥(fa)(fa)(fa)應為常閉(bi)(bi),安裝在排煙(yan)(yan)管(guan)道中(zhong)發生(sheng)火(huo)災時(shi)(shi)控(kong)制中(zhong)心(xin)給出(chu)電信號使其打開排煙(yan)(yan),當(dang)溫度到達280時(shi)(shi)易熔合金(jin)熔化閥(fa)(fa)(fa)門(men)關(guan)閉(bi)(bi),是一種二次動作的閥(fa)(fa)(fa)門(men)。
1.通(tong)風(feng)、空氣(qi)調節系統的(de)(de)(de)風(feng)管(guan)(guan)(guan)(guan)在下列部位應(ying)(ying)設(she)置(zhi)(zhi)(zhi)公(gong)稱(cheng)動作(zuo)(zuo)溫度(du)為(wei)70℃的(de)(de)(de)防(fang)(fang)火(huo)(huo)閥(fa)。①穿(chuan)越(yue)防(fang)(fang)火(huo)(huo)分區(qu)處(chu)(chu)(chu)(chu)。②穿(chuan)越(yue)通(tong)風(feng)空調機房(fang)的(de)(de)(de)房(fang)間隔墻和(he)樓板處(chu)(chu)(chu)(chu)。③穿(chuan)越(yue)重要或(huo)火(huo)(huo)災危險性大的(de)(de)(de)場所(suo)的(de)(de)(de)房(fang)間隔墻和(he)樓板處(chu)(chu)(chu)(chu)。④穿(chuan)越(yue)防(fang)(fang)火(huo)(huo)分隔處(chu)(chu)(chu)(chu)的(de)(de)(de)變形縫兩側(ce)。⑤豎向風(feng)管(guan)(guan)(guan)(guan)與(yu)每層水平(ping)風(feng)管(guan)(guan)(guan)(guan)交接處(chu)(chu)(chu)(chu)的(de)(de)(de)水平(ping)管(guan)(guan)(guan)(guan)段上,當建(jian)(jian)筑(zhu)(zhu)內每個防(fang)(fang)火(huo)(huo)分區(qu)的(de)(de)(de)通(tong)風(feng)、空氣(qi)調節系統均獨立設(she)置(zhi)(zhi)(zhi)時,水平(ping)風(feng)管(guan)(guan)(guan)(guan)與(yu)豎向總管(guan)(guan)(guan)(guan)的(de)(de)(de)交接處(chu)(chu)(chu)(chu)可不設(she)置(zhi)(zhi)(zhi)防(fang)(fang)火(huo)(huo)閥(fa)。2.公(gong)共(gong)建(jian)(jian)筑(zhu)(zhu)的(de)(de)(de)浴室、衛生間和(he)廚(chu)(chu)房(fang)的(de)(de)(de)豎向排(pai)(pai)(pai)風(feng)管(guan)(guan)(guan)(guan),應(ying)(ying)采(cai)取(qu)防(fang)(fang)止回流措(cuo)施并(bing)宜在支管(guan)(guan)(guan)(guan)上設(she)置(zhi)(zhi)(zhi)公(gong)稱(cheng)動作(zuo)(zuo)溫度(du)為(wei)70℃的(de)(de)(de)防(fang)(fang)火(huo)(huo)閥(fa)。公(gong)共(gong)建(jian)(jian)筑(zhu)(zhu)內廚(chu)(chu)房(fang)的(de)(de)(de)排(pai)(pai)(pai)油(you)煙管(guan)(guan)(guan)(guan)道(dao)宜按防(fang)(fang)火(huo)(huo)分區(qu)設(she)置(zhi)(zhi)(zhi),且在與(yu)豎向排(pai)(pai)(pai)風(feng)管(guan)(guan)(guan)(guan)連接的(de)(de)(de)支管(guan)(guan)(guan)(guan)處(chu)(chu)(chu)(chu)應(ying)(ying)設(she)置(zhi)(zhi)(zhi)公(gong)稱(cheng)動作(zuo)(zuo)溫度(du)為(wei)150℃的(de)(de)(de)防(fang)(fang)火(huo)(huo)閥(fa)。 3.排(pai)(pai)(pai)煙防(fang)(fang)火(huo)(huo)閥(fa)(280℃)的(de)(de)(de)設(she)置(zhi)(zhi)(zhi)場所(suo):①排(pai)(pai)(pai)煙管(guan)(guan)(guan)(guan)進入(ru)排(pai)(pai)(pai)風(feng)機房(fang)處(chu)(chu)(chu)(chu);②穿(chuan)越(yue)防(fang)(fang)火(huo)(huo)分區(qu)的(de)(de)(de)排(pai)(pai)(pai)煙管(guan)(guan)(guan)(guan)道(dao)上;③排(pai)(pai)(pai)煙系統的(de)(de)(de)支管(guan)(guan)(guan)(guan)上;
1.風(feng)(feng)管(guan)程度(du)安裝,邊長(chang)(chang)尺寸小于(yu)(yu)(yu)(yu)(yu)等(deng)于(yu)(yu)(yu)(yu)(yu)400mm,間距不(bu)應(ying)(ying)(ying)大(da)于(yu)(yu)(yu)(yu)(yu)4m;大(da)于(yu)(yu)(yu)(yu)(yu)400mm,不(bu)應(ying)(ying)(ying)大(da)于(yu)(yu)(yu)(yu)(yu)3m;對(dui)于(yu)(yu)(yu)(yu)(yu)薄鋼板法蘭(lan)的(de)(de)風(feng)(feng)管(guan),其(qi)支(zhi)、吊(diao)(diao)(diao)架間距不(bu)應(ying)(ying)(ying)大(da)于(yu)(yu)(yu)(yu)(yu)3m。2.風(feng)(feng)管(guan)垂(chui)直安裝,間距不(bu)應(ying)(ying)(ying)大(da)于(yu)(yu)(yu)(yu)(yu)4m,單(dan)根直管(guan)至少應(ying)(ying)(ying)有2個固(gu)定點。3.支(zhi)、吊(diao)(diao)(diao)架不(bu)宜(yi)設(she)置在(zai)風(feng)(feng)口、閥門(men)、檢討門(men)及(ji)自(zi)控機構處(chu),離(li)(li)風(feng)(feng)口或(huo)插接(jie)管(guan)的(de)(de)距離(li)(li)不(bu)宜(yi)小于(yu)(yu)(yu)(yu)(yu)200mm。4.當(dang)程度(du)懸吊(diao)(diao)(diao)的(de)(de)主、干風(feng)(feng)管(guan)長(chang)(chang)度(du)超過20m時,應(ying)(ying)(ying)設(she)置防止擺動固(gu)定點,每個系(xi)統不(bu)應(ying)(ying)(ying)少于(yu)(yu)(yu)(yu)(yu)1個。5.防火閥直徑或(huo)長(chang)(chang)邊尺寸大(da)于(yu)(yu)(yu)(yu)(yu)等(deng)于(yu)(yu)(yu)(yu)(yu)630mm時,宜(yi)設(she)獨立(li)支(zhi)、吊(diao)(diao)(diao)架。6.帶高(gao)效過濾器(qi)的(de)(de)送(song)風(feng)(feng)口,應(ying)(ying)(ying)采取(qu)可分離(li)(li)調節高(gao)度(du)的(de)(de)吊(diao)(diao)(diao)桿。金屬風(feng)(feng)管(guan)的(de)(de)加(jia)固(gu):矩形風(feng)(feng)管(guan)邊長(chang)(chang)大(da)于(yu)(yu)(yu)(yu)(yu)630mm、保溫風(feng)(feng)管(guan)邊長(chang)(chang)大(da)于(yu)(yu)(yu)(yu)(yu)800mm,并且管(guan)段長(chang)(chang)度(du)大(da)于(yu)(yu)(yu)(yu)(yu)1250mm或(huo)低壓(ya)風(feng)(feng)管(guan)單(dan)邊平(ping)面積大(da)于(yu)(yu)(yu)(yu)(yu)1.2m2、中(zhong)、高(gao)壓(ya)風(feng)(feng)管(guan)大(da)于(yu)(yu)(yu)(yu)(yu)1.0m2中(zhong),均(jun)應(ying)(ying)(ying)采用加(jia)固(gu)辦(ban)法。角鋼、加(jia)固(gu)筋的(de)(de)加(jia)固(gu),其(qi)高(gao)度(du)應(ying)(ying)(ying)小于(yu)(yu)(yu)(yu)(yu)或(huo)等(deng)于(yu)(yu)(yu)(yu)(yu)風(feng)(feng)管(guan)的(de)(de)寬度(du)。角鋼、加(jia)固(gu)筋與風(feng)(feng)管(guan)鉚接(jie)的(de)(de)間隔應(ying)(ying)(ying)均(jun)勻,不(bu)應(ying)(ying)(ying)大(da)于(yu)(yu)(yu)(yu)(yu)220mm。.對(dui)于(yu)(yu)(yu)(yu)(yu)凈化(hua)空調系(xi)統,不(bu)應(ying)(ying)(ying)在(zai)風(feng)(feng)管(guan)內設(she)加(jia)固(gu)框及(ji)加(jia)固(gu)筋。
什么(me)是風(feng)(feng)(feng)管(guan)(guan)(guan),常(chang)見風(feng)(feng)(feng)管(guan)(guan)(guan)有哪些類(lei)型,風(feng)(feng)(feng)管(guan)(guan)(guan)主要(yao)(yao)指(zhi)中(zhong)(zhong)央(yang)空(kong)(kong)(kong)調(diao)(diao)系統的通(tong)風(feng)(feng)(feng)管(guan)(guan)(guan)道,它常(chang)常(chang)被忽視,但卻(que)是空(kong)(kong)(kong)調(diao)(diao)系統的重(zhong)要(yao)(yao)組(zu)成(cheng)部分。風(feng)(feng)(feng)管(guan)(guan)(guan)是由(you)薄(bo)鋼(gang)板(ban)(ban)、鋁板(ban)(ban)、硬(ying)(ying)聚(ju)氯乙(yi)烯板(ban)(ban)、玻(bo)璃(li)(li)(li)鋼(gang)以及其它復(fu)合(he)材(cai)料等(deng)(deng)制(zhi)成(cheng)的,用于輸送空(kong)(kong)(kong)氣(qi)和(he)空(kong)(kong)(kong)氣(qi)混合(he)物的各種管(guan)(guan)(guan)道的總(zong)稱。1、按(an)照材(cai)質可分為(wei)(wei):金(jin)屬(shu)風(feng)(feng)(feng)管(guan)(guan)(guan)、非(fei)金(jin)屬(shu)風(feng)(feng)(feng)管(guan)(guan)(guan)。其中(zhong)(zhong):(1)金(jin)屬(shu)風(feng)(feng)(feng)管(guan)(guan)(guan)又可分為(wei)(wei):鋼(gang)板(ban)(ban)風(feng)(feng)(feng)管(guan)(guan)(guan)、鋁板(ban)(ban)風(feng)(feng)(feng)管(guan)(guan)(guan)、不銹鋼(gang)風(feng)(feng)(feng)管(guan)(guan)(guan)等(deng)(deng);(2)非(fei)金(jin)屬(shu)風(feng)(feng)(feng)管(guan)(guan)(guan)可以分為(wei)(wei):硬(ying)(ying)聚(ju)氯乙(yi)烯風(feng)(feng)(feng)管(guan)(guan)(guan)、有機(ji)玻(bo)璃(li)(li)(li)風(feng)(feng)(feng)管(guan)(guan)(guan)、無機(ji)玻(bo)璃(li)(li)(li)風(feng)(feng)(feng)管(guan)(guan)(guan)、玻(bo)璃(li)(li)(li)鋼(gang)風(feng)(feng)(feng)管(guan)(guan)(guan)以及其它復(fu)合(he)材(cai)料風(feng)(feng)(feng)管(guan)(guan)(guan)等(deng)(deng);2、按(an)照風(feng)(feng)(feng)管(guan)(guan)(guan)外形(xing)可分為(wei)(wei):圓形(xing)風(feng)(feng)(feng)管(guan)(guan)(guan)、矩形(xing)風(feng)(feng)(feng)管(guan)(guan)(guan);3、按(an)照通(tong)風(feng)(feng)(feng)空(kong)(kong)(kong)調(diao)(diao)系統工作壓(ya)力可分為(wei)(wei):高壓(ya)風(feng)(feng)(feng)管(guan)(guan)(guan)、中(zhong)(zhong)壓(ya)風(feng)(feng)(feng)管(guan)(guan)(guan)、低壓(ya)風(feng)(feng)(feng)管(guan)(guan)(guan)三(san)個類(lei)別(bie),
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。萬州配件安裝風(feng)(feng)管(guan)前應清除(chu)管(guan)內外雜物(wu),并做好清潔和保護(hu)工作,風(feng)(feng)管(guan)安裝的位置、標高和走(zou)向(xiang)等應符合設計要求(qiu),現場風(feng)(feng)管(guan)接口的配(pei)置不得(de)縮小(xiao)有效截面。
風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)廣(guang)泛地(di)應用于各(ge)個工業部門,一(yi)(yi)般講,離心(xin)式(shi)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)適用于小(xiao)流(liu)量、高壓力的場所,而軸(zhou)流(liu)式(shi)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)則常用于大流(liu)量、低(di)壓力的情況,應根據不同的情況選有不同的風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)分類(lei)。1鍋爐(lu)用風(feng)(feng)(feng)(feng)機(ji)(ji)(ji),鍋爐(lu)用風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)根據鍋爐(lu)的規格可(ke)選用離心(xin)式(shi)或(huo)軸(zhou)流(liu)式(shi)。又按它的作用分為鍋爐(lu)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)—向鍋爐(lu)內輸送空氣(qi);鍋爐(lu)引(yin)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)把鍋爐(lu)內的煙氣(qi)抽走。2通風(feng)(feng)(feng)(feng)換氣(qi)用風(feng)(feng)(feng)(feng)機(ji)(ji)(ji),這類(lei)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)一(yi)(yi)般是供工廠及(ji)(ji)各(ge)種建(jian)筑(zhu)物(wu)通風(feng)(feng)(feng)(feng)換氣(qi)及(ji)(ji)采暖通風(feng)(feng)(feng)(feng)用,要(yao)求壓力不高,但(dan)噪聲要(yao)求要(yao)低(di),可(ke)采用離心(xin)式(shi)或(huo)軸(zhou)流(liu)式(shi)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)。