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1,通(tong)(tong)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)安(an)裝(zhuang)在支(zhi)架上,應設(she)托座。2,通(tong)(tong)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)如(ru)有(you)(you)穿出屋面(mian)外部分,應設(she)置(zhi)防雨罩(zhao)。3,通(tong)(tong)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)采用(yong)(yong)無(wu)法蘭連(lian)時,接口處應嚴(yan)密牢固。通(tong)(tong)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)連(lian)接兩平面(mian)應平直,不得錯位及扭曲(qu)。4,輸送易(yi)產生(sheng)冷凝水的(de)通(tong)(tong)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan),安(an)裝(zhuang)應設(she)計坡度(du)。通(tong)(tong)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)底部不能有(you)(you)縱向的(de)接縫, 如(ru)必須有(you)(you)接縫,則(ze)應采用(yong)(yong)密封方式。通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)道安(an)裝(zhuang)完畢后,應進行嚴(yan)密性(xing)試驗,如(ru)發現(xian)異常(chang)情況,通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)道的(de)制作、安(an)裝(zhuang)、檢驗和試驗,是一個連(lian)貫的(de)工(gong)程(cheng),做到安(an)全適(shi)用(yong)(yong),經濟合(he)理,方便施工(gong),確保通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)道的(de)工(gong)程(cheng)質量。
雖然在商業(ye)建(jian)(jian)筑(zhu)與(yu)多種居住(zhu)房的(de)(de)(de)被(bei)動消防中(zhong)(zhong)(zhong),防火(huo)(huo)閥(fa)是關鍵組件,但在對建(jian)(jian)筑(zhu)和其(qi)(qi)居住(zhu)者的(de)(de)(de)安全保護中(zhong)(zhong)(zhong),很多管(guan)理者沒(mei)有意(yi)識(shi)到(dao)(dao)防火(huo)(huo)閥(fa)的(de)(de)(de)作用(yong)以及規定(ding)時間間隔(ge)內(nei),防火(huo)(huo)閥(fa)的(de)(de)(de)檢測、清潔及維護的(de)(de)(de)重(zhong)要(yao)意(yi)義。在商業(ye)建(jian)(jian)筑(zhu)中(zhong)(zhong)(zhong)的(de)(de)(de)建(jian)(jian)造(zao)中(zhong)(zhong)(zhong)我們總會遇到(dao)(dao)一(yi)些麻煩,試(shi)圖在能(neng)源效率與(yu)室(shi)內(nei)空(kong)(kong)氣(qi)質量(liang)之間尋求(qiu)平衡就是其(qi)(qi)中(zhong)(zhong)(zhong)。大(da)多商業(ye)建(jian)(jian)筑(zhu)通(tong)(tong)(tong)過機械(xie)通(tong)(tong)(tong)風(feng)(feng)或空(kong)(kong)調系統(tong)解決,能(neng)夠測量(liang)和控(kong)制整(zheng)個建(jian)(jian)筑(zhu)的(de)(de)(de)空(kong)(kong)氣(qi)變化(hua)。在通(tong)(tong)(tong)風(feng)(feng)管(guan)道系統(tong)的(de)(de)(de)安裝上(shang)就存在上(shang)面提到(dao)(dao)的(de)(de)(de)問(wen)題———如何在延(yan)遲或阻止火(huo)(huo)災蔓延(yan)的(de)(de)(de)建(jian)(jian)筑(zhu)防火(huo)(huo)分隔(ge)與(yu)所允(yun)許(xu)空(kong)(kong)氣(qi)自由(you)(you)流(liu)通(tong)(tong)(tong)的(de)(de)(de)需要(yao)之間達到(dao)(dao)平衡。滿足空(kong)(kong)氣(qi)自由(you)(you)流(liu)通(tong)(tong)(tong)需要(yao)不可避免地再引入一(yi)條通(tong)(tong)(tong)道,而(er)這卻(que)加快了(le)(le)火(huo)(huo)勢的(de)(de)(de)蔓延(yan)———利用(yong)通(tong)(tong)(tong)風(feng)(feng)管(guan)道系統(tong)使用(yong)的(de)(de)(de)通(tong)(tong)(tong)道。毫(hao)無(wu)疑問(wen),這中(zhong)(zhong)(zhong)斷了(le)(le)防火(huo)(huo)分隔(ge),充當了(le)(le)建(jian)(jian)筑(zhu)被(bei)動消防護面的(de)(de)(de)“裂口”。
消防排(pai)煙風機(ji)(ji)廠家產品由多個配(pei)(pei)件構(gou)成(cheng)(cheng),比如(ru)說(shuo)葉(xie)(xie)輪(lun)、機(ji)(ji)殼(ke)、軸承(cheng)、主(zhu)軸等(deng)等(deng)構(gou)成(cheng)(cheng),而不(bu)(bu)同的(de)(de)配(pei)(pei)件也起著不(bu)(bu)同的(de)(de)作(zuo)用。首先對(dui)于葉(xie)(xie)輪(lun)而言,一般采用優(you)質鍍鋅板制作(zuo)而成(cheng)(cheng)的(de)(de)葉(xie)(xie)片,通(tong)(tong)過(guo)傾斜設計(ji),與拉伸成(cheng)(cheng)型的(de)(de)前盤(pan)一起形成(cheng)(cheng)了更(geng)合理的(de)(de)流(liu)道(dao)(dao)(dao)(dao),從而保(bao)證了葉(xie)(xie)輪(lun)的(de)(de)高效率。而軸承(cheng)是(shi)帶鑄造座的(de)(de)外球(qiu)面軸承(cheng),可以通(tong)(tong)過(guo)外球(qiu)面配(pei)(pei)合調整同軸度的(de)(de)誤(wu)差。主(zhu)軸一般采用45#鋼經(jing)調制處理后精車(che)而成(cheng)(cheng),保(bao)證足夠的(de)(de)光潔度和尺寸(cun)精。另外兩層(ceng)板內部填充(chong)消聲材料,能更(geng)有(you)效隔熱降噪。消防排(pai)煙風機(ji)(ji)不(bu)(bu)能距離隧(sui)(sui)道(dao)(dao)(dao)(dao)的(de)(de)邊壁太近,避(bi)免影響通(tong)(tong)風效果(guo)。通(tong)(tong)風系統從安(an)全隧(sui)(sui)道(dao)(dao)(dao)(dao)向(xiang)(xiang)通(tong)(tong)過(guo)橫(heng)(heng)通(tong)(tong)道(dao)(dao)(dao)(dao)向(xiang)(xiang)事故隧(sui)(sui)道(dao)(dao)(dao)(dao)方向(xiang)(xiang)送(song)風,抑制煙氣(qi)進(jin)入橫(heng)(heng)通(tong)(tong)道(dao)(dao)(dao)(dao)及未發生(sheng)事故的(de)(de)隧(sui)(sui)道(dao)(dao)(dao)(dao),滿足疏散(san)人員(yuan)迎(ying)著新風進(jin)入橫(heng)(heng)通(tong)(tong)道(dao)(dao)(dao)(dao)和安(an)全隧(sui)(sui)道(dao)(dao)(dao)(dao)內,同時保(bao)證等(deng)待區域所(suo)需要的(de)(de)新鮮空(kong)氣(qi)。充(chong)分利(li)用定點(dian)救(jiu)援(yuan)站(zhan)處的(de)(de)斜井和隧(sui)(sui)道(dao)(dao)(dao)(dao)兩端(duan)的(de)(de)消防排(pai)煙風機(ji)(ji)作(zuo)為(wei)送(song)入新風和排(pai)煙的(de)(de)通(tong)(tong)道(dao)(dao)(dao)(dao),通(tong)(tong)風必須維持橫(heng)(heng)通(tong)(tong)道(dao)(dao)(dao)(dao)口處于正(zheng)壓狀態,防止煙氣(qi)流(liu)向(xiang)(xiang)通(tong)(tong)道(dao)(dao)(dao)(dao)內。
(1)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)布(bu)置應(ying)(ying)(ying)盡(jin)量采用(yong)(yong)沿墻壁鋪設(she)的(de)(de)方(fang)法,這(zhe)樣在終(zhong)裝(zhuang)修時可形成凹凸頂結(jie)構(gou),既保持了(le)室內的(de)(de)凈高,又使風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)得到屏(ping)蔽,可以(yi)起到較好的(de)(de)裝(zhuang)修效果;(2)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)在布(bu)置時應(ying)(ying)(ying)盡(jin)量短(duan),彎(wan)頭不(bu)(bu)宜過(guo)多(duo),轉角(jiao)半徑不(bu)(bu)宜過(guo)小,并盡(jin)量避免(mian)管(guan)(guan)(guan)道突(tu)變徑,以(yi)減少(shao)沿程壓力(li)的(de)(de)損(sun)失;(3)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)安(an)(an)裝(zhuang)時不(bu)(bu)應(ying)(ying)(ying)破壞原有(you)(you)建筑的(de)(de)結(jie)構(gou),特別是承重結(jie)構(gou);(4)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)穿過(guo)墻壁處,其孔洞(dong)四(si)周的(de)(de)縫隙,應(ying)(ying)(ying)使用(yong)(yong)彈性(xing)材料填充密實;(5)為了(le)降(jiang)低噪聲,風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)的(de)(de)始端(與送風(feng)(feng)(feng)(feng)機連(lian)接(jie)處)不(bu)(bu)宜急彎(wan),必要(yao)時,彎(wan)頭和(he)三通支管(guan)(guan)(guan)等處應(ying)(ying)(ying)裝(zhuang)設(she)導流葉(xie)片;(6)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)的(de)(de)連(lian)接(jie)應(ying)(ying)(ying)嚴格按照規范(fan)進(jin)行,粘貼應(ying)(ying)(ying)牢固(gu)、鋪設(she)應(ying)(ying)(ying)平整、綁扎應(ying)(ying)(ying)緊(jin)密,無滑動、松(song)弛(chi)與斷裂現象,防止漏(lou)冷(leng)(熱);(7)輸送易產生冷(leng)凝水(shui)空(kong)氣(qi)的(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan),一定要(yao)按設(she)計要(yao)求(qiu)的(de)(de)坡(po)度(du)安(an)(an)裝(zhuang);(8)安(an)(an)裝(zhuang)要(yao)牢固(gu),所有(you)(you)吊、支、托(tuo)架不(bu)(bu)得妨(fang)礙(ai)風(feng)(feng)(feng)(feng)口、閥門、控制系統及檢查門的(de)(de)操作(zuo),并作(zuo)良好的(de)(de)防銹處理;(9)新(xin)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)安(an)(an)裝(zhuang)除應(ying)(ying)(ying)遵守送風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)道安(an)(an)裝(zhuang)規定外,還應(ying)(ying)(ying)按設(she)計要(yao)求(qiu)作(zuo)有(you)(you)坡(po)度(du)安(an)(an)裝(zhuang)(坡(po)向新(xin)風(feng)(feng)(feng)(feng)口);(10)新(xin)風(feng)(feng)(feng)(feng)口要(yao)有(you)(you)防雨和(he)過(guo)濾網罩(zhao),安(an)(an)裝(zhuang)位置應(ying)(ying)(ying)選在空(kong)氣(qi)不(bu)(bu)受(shou)污染(ran)的(de)(de)地方(fang)且便于檢修。
防(fang)(fang)(fang)火閥(fa)(fa)(fa):采(cai)用(yong)70℃溫度熔斷(duan)器自動(dong)關閉(防(fang)(fang)(fang)火).可(ke)輸(shu)出(chu)聯動(dong)訊號(hao)(hao),用(yong)于通(tong)(tong)風(feng)空(kong)調(diao)系統(tong)風(feng)管(guan)(guan)(guan)(guan)(guan)內,防(fang)(fang)(fang)止(zhi)火勢沿風(feng)管(guan)(guan)(guan)(guan)(guan)蔓延。排(pai)煙(yan)防(fang)(fang)(fang)火閥(fa)(fa)(fa):電訊號(hao)(hao)開(kai)啟,手動(dong)開(kai)啟,輸(shu)出(chu)動(dong)作電訊號(hao)(hao).用(yong)于排(pai)煙(yan)風(feng)機吸入口管(guan)(guan)(guan)(guan)(guan)道或排(pai)煙(yan)支(zhi)管(guan)(guan)(guan)(guan)(guan)上(shang)(shang)。采(cai)用(yong)280℃溫度熔斷(duan)器重新關閉。防(fang)(fang)(fang)火閥(fa)(fa)(fa)——通(tong)(tong)風(feng)空(kong)調(diao)系統(tong)70℃:風(feng)管(guan)(guan)(guan)(guan)(guan)穿越防(fang)(fang)(fang)火分區、隔墻樓板、水平風(feng)管(guan)(guan)(guan)(guan)(guan)的(de)水平管(guan)(guan)(guan)(guan)(guan)段上(shang)(shang)(系統(tong)獨立設(she)置可(ke)不設(she))、公(gong)共(gong)建筑豎向排(pai)風(feng)管(guan)(guan)(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan)(guan)(guan);150℃:公(gong)共(gong)建筑廚(chu)房排(pai)油煙(yan)管(guan)(guan)(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan)(guan)(guan);排(pai)煙(yan)防(fang)(fang)(fang)火閥(fa)(fa)(fa)——消防(fang)(fang)(fang)排(pai)煙(yan)系統(tong)280℃:消防(fang)(fang)(fang)排(pai)煙(yan)管(guan)(guan)(guan)(guan)(guan)道;
防火閥是用來阻斷來自火災區的煙氣及火焰通過,并在一定時間內能滿足耐火穩定性和耐火完整性要求的閥門。沙坪壩消防風機為了將火災引起的損失減少到小程度,就必須采取有效的防火、防排煙措施,以控制火勢蔓延,而防火閥在通風、空調及防排煙系統中的合理設置,則消防風機起到了(le)重要的作用。防火閥的結構(gou)(gou)(gou)和(he)工作原理,防火閥主(zhu)要由閥體(ti)(ti)和(he)執行機(ji)(ji)構(gou)(gou)(gou)組(zu)(zu)成。閥體(ti)(ti)由殼(ke)體(ti)(ti)、法蘭、葉(xie)片及葉(xie)片聯動(dong)機(ji)(ji)構(gou)(gou)(gou)等(deng)組(zu)(zu)成。執行機(ji)(ji)構(gou)(gou)(gou)由外殼(ke)、葉(xie)片調節(jie)機(ji)(ji)構(gou)(gou)(gou)、離合器、溫度(du)熔斷器等(deng)組(zu)(zu)成。防火閥的執行機(ji)(ji)構(gou)(gou)(gou)是通過(guo)金屬易熔片和(he)離合器機(ji)(ji)構(gou)(gou)(gou)來控制葉(xie)片的轉動(dong)。