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防(fang)(fang)(fang)火(huo)閥是用來(lai)阻斷來(lai)自火(huo)災區的(de)(de)煙氣及(ji)(ji)火(huo)焰(yan)通過(guo),并在(zai)一定時(shi)間(jian)內能滿(man)足耐火(huo)穩定性和(he)耐火(huo)完整性要(yao)求(qiu)的(de)(de)閥門。為(wei)了將(jiang)火(huo)災引(yin)起(qi)的(de)(de)損失減少(shao)到小程(cheng)度(du)(du),就必須采取有(you)效的(de)(de)防(fang)(fang)(fang)火(huo)、防(fang)(fang)(fang)排(pai)煙措施(shi),以控制火(huo)勢蔓延,而(er)防(fang)(fang)(fang)火(huo)閥在(zai)通風、空調及(ji)(ji)防(fang)(fang)(fang)排(pai)煙系統中(zhong)的(de)(de)合理設置,則起(qi)到了重要(yao)的(de)(de)作用。防(fang)(fang)(fang)火(huo)閥的(de)(de)結構(gou)(gou)(gou)(gou)(gou)和(he)工作原理,防(fang)(fang)(fang)火(huo)閥主要(yao)由(you)(you)(you)閥體(ti)和(he)執(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)組成(cheng)。閥體(ti)由(you)(you)(you)殼(ke)(ke)體(ti)、法蘭(lan)、葉(xie)(xie)片及(ji)(ji)葉(xie)(xie)片聯(lian)動(dong)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)等組成(cheng)。執(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)由(you)(you)(you)外殼(ke)(ke)、葉(xie)(xie)片調節機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)、離合器(qi)(qi)、溫度(du)(du)熔斷器(qi)(qi)等組成(cheng)。防(fang)(fang)(fang)火(huo)閥的(de)(de)執(zhi)行(xing)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)是通過(guo)金屬易(yi)熔片和(he)離合器(qi)(qi)機(ji)(ji)構(gou)(gou)(gou)(gou)(gou)來(lai)控制葉(xie)(xie)片的(de)(de)轉動(dong)。
通(tong)風(feng)(feng)(feng)、空(kong)調設(she)(she)備防(fang)火(huo)防(fang)爆(bao)(bao)(bao)措施(shi)1、空(kong)氣(qi)中含有(you)(you)容易起火(huo)或(huo)爆(bao)(bao)(bao)炸(zha)(zha)物(wu)質(zhi)的(de)(de)(de)(de)房(fang)間,其(qi)送、排(pai)(pai)(pai)(pai)風(feng)(feng)(feng)系(xi)統應采(cai)用(yong)(yong)(yong)防(fang)爆(bao)(bao)(bao)型的(de)(de)(de)(de)通(tong)風(feng)(feng)(feng)設(she)(she)備和不(bu)(bu)會產生(sheng)火(huo)花的(de)(de)(de)(de)材(cai)(cai)料(liao)(liao)(如可(ke)采(cai)用(yong)(yong)(yong)有(you)(you)色金(jin)屬制造的(de)(de)(de)(de)風(feng)(feng)(feng)機(ji)葉片和防(fang)爆(bao)(bao)(bao)電動機(ji))。當送風(feng)(feng)(feng)機(ji)布(bu)(bu)置(zhi)(zhi)在(zai)單(dan)獨分隔(ge)的(de)(de)(de)(de)通(tong)風(feng)(feng)(feng)機(ji)房(fang)內,且送風(feng)(feng)(feng)干(gan)管(guan)上設(she)(she)置(zhi)(zhi)防(fang)止回流設(she)(she)施(shi)時,可(ke)采(cai)用(yong)(yong)(yong)普通(tong)型通(tong)風(feng)(feng)(feng)設(she)(she)備。2、含有(you)(you)易燃(ran)、易爆(bao)(bao)(bao)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(碎(sui)屑(xie))的(de)(de)(de)(de)空(kong)氣(qi),在(zai)進入排(pai)(pai)(pai)(pai)風(feng)(feng)(feng)機(ji)前(qian)應采(cai)用(yong)(yong)(yong)不(bu)(bu)產生(sheng)火(huo)花的(de)(de)(de)(de)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)進行(xing)處理,以(yi)防(fang)止除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)工作過(guo)程中產生(sheng)火(huo)花引起粉(fen)(fen)塵(chen)(chen)(chen)(chen)、碎(sui)屑(xie)燃(ran)燒或(huo)爆(bao)(bao)(bao)炸(zha)(zha)。對于遇(yu)濕可(ke)能爆(bao)(bao)(bao)炸(zha)(zha)的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(如電石、鋅粉(fen)(fen)、鋁(lv)鎂合金(jin)粉(fen)(fen)等(deng)),嚴禁采(cai)用(yong)(yong)(yong)濕式除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)。3、排(pai)(pai)(pai)(pai)除(chu)(chu)、輸(shu)送有(you)(you)燃(ran)燒、爆(bao)(bao)(bao)炸(zha)(zha)危險的(de)(de)(de)(de)氣(qi)體、蒸(zheng)氣(qi)和粉(fen)(fen)塵(chen)(chen)(chen)(chen)的(de)(de)(de)(de)排(pai)(pai)(pai)(pai)風(feng)(feng)(feng)系(xi)統,應采(cai)用(yong)(yong)(yong)不(bu)(bu)燃(ran)材(cai)(cai)料(liao)(liao)并設(she)(she)有(you)(you)導(dao)除(chu)(chu)靜電的(de)(de)(de)(de)接地裝置(zhi)(zhi)。其(qi)排(pai)(pai)(pai)(pai)風(feng)(feng)(feng)設(she)(she)備不(bu)(bu)應布(bu)(bu)置(zhi)(zhi)在(zai)地下、半地下建筑(室)內,以(yi)防(fang)止有(you)(you)爆(bao)(bao)(bao)炸(zha)(zha)危險的(de)(de)(de)(de)蒸(zheng)氣(qi)和粉(fen)(fen)塵(chen)(chen)(chen)(chen)等(deng)物(wu)質(zhi)的(de)(de)(de)(de)積(ji)聚。4、排(pai)(pai)(pai)(pai)除(chu)(chu)、輸(shu)送溫度(du)超過(guo)80℃的(de)(de)(de)(de)空(kong)氣(qi)或(huo)其(qi)他氣(qi)體以(yi)及容易起火(huo)的(de)(de)(de)(de)碎(sui)屑(xie)的(de)(de)(de)(de)管(guan)道,與可(ke)燃(ran)或(huo)難(nan)燃(ran)物(wu)體之間應保持不(bu)(bu)小于150mm的(de)(de)(de)(de)間隙,或(huo)采(cai)用(yong)(yong)(yong)厚度(du)不(bu)(bu)小于50mm的(de)(de)(de)(de)不(bu)(bu)燃(ran)材(cai)(cai)料(liao)(liao)隔(ge)熱,以(yi)防(fang)止填塞(sai)物(wu)與構(gou)件因受這(zhe)些高(gao)溫管(guan)道的(de)(de)(de)(de)影(ying)響而導(dao)致(zhi)火(huo)災(zai)。當管(guan)道互為上下布(bu)(bu)置(zhi)(zhi)時,表面溫度(du)較高(gao)者應布(bu)(bu)置(zhi)(zhi)在(zai)上面。
消防排煙風機廠家產品由多個配件構成,比如說葉輪、機殼、軸承、主軸等等構成,而通風管不同的配件也起著不同的作用。首先對于葉輪而言,一般采用優質鍍鋅板制作而成的葉片,通過傾斜設計,與拉伸成型的前盤一起形成了更合理的流道,從而保證了葉輪的高效率。而軸承是帶鑄造座的外球面軸承,可以通過外球面配合調整同軸度的誤差。主軸一般采用45#鋼經調制處理后精車而成,保證足夠的光潔度和尺寸精。另外兩層板內部填充消聲材料,高品質通風管能(neng)更有效隔熱降噪。消防排煙(yan)風(feng)(feng)機不(bu)能(neng)距離隧(sui)道(dao)的邊壁太近,避免影響通(tong)風(feng)(feng)效果。通(tong)風(feng)(feng)系統從(cong)安全隧(sui)道(dao)向(xiang)通(tong)過(guo)橫通(tong)道(dao)向(xiang)事故隧(sui)道(dao)方向(xiang)送風(feng)(feng),抑制煙(yan)氣進入(ru)橫通(tong)道(dao)及(ji)未發生事故的隧(sui)道(dao),滿(man)足疏散(san)人員迎著(zhu)新(xin)(xin)風(feng)(feng)進入(ru)橫通(tong)道(dao)和(he)安全隧(sui)道(dao)內(nei),同(tong)時保證等待區域所需要的新(xin)(xin)鮮空氣。充分利用定點救援站處的斜井(jing)和(he)隧(sui)道(dao)兩端的消防排煙(yan)風(feng)(feng)機作(zuo)為送入(ru)新(xin)(xin)風(feng)(feng)和(he)排煙(yan)的通(tong)道(dao),通(tong)風(feng)(feng)必須維(wei)持橫通(tong)道(dao)口處于正(zheng)壓(ya)狀態,防止(zhi)煙(yan)氣流向(xiang)通(tong)道(dao)內(nei)。
1安(an)裝(zhuang)好采(cai)用(yong)水平聯通(tong)(tong)的(de)方(fang)式(shi)。操作(zuo)簡單,使(shi)用(yong)安(an)全(quan)(quan)范(fan)圍廣。有人(ren)(ren)說(shuo),我方(fang)式(shi)也(ye)養(yang)(yang)好雞,我只能說(shuo)沒有養(yang)(yang)不(bu)(bu)(bu)(bu)好雞的(de)雞舍(she),只有養(yang)(yang)不(bu)(bu)(bu)(bu)好雞的(de)人(ren)(ren)。合理設計(ji)本(ben)身是為了減(jian)小(xiao)(xiao)勞動量的(de)!2開(kai)口大小(xiao)(xiao)與數(shu)(shu)量。建(jian)議(yi)等于風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)橫截面積,按照管(guan)(guan)(guan)子內徑實際有效面積計(ji)算。開(kai)口大小(xiao)(xiao)不(bu)(bu)(bu)(bu)敢妄(wang)言,開(kai)口越(yue)小(xiao)(xiao),所需開(kai)口數(shu)(shu)量越(yue)多,出風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)越(yue)細越(yue)散越(yue)均(jun)勻,但沖(chong)(chong)勁不(bu)(bu)(bu)(bu)足(zu),降(jiang)低負壓減(jian)緩(huan)(huan)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)速相對(dui)更(geng)(geng)安(an)全(quan)(quan)。開(kai)口越(yue)大,進(jin)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)越(yue)厚,沖(chong)(chong)勁越(yue)足(zu),相對(dui)可以提高(gao)負壓工作(zuo),同樣配(pei)(pei)(pei)置風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)數(shu)(shu)量,安(an)全(quan)(quan)范(fan)圍內滿足(zu)更(geng)(geng)多進(jin)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)量。(主(zhu)要是冷風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)緩(huan)(huan)沖(chong)(chong)范(fan)圍廣了)3配(pei)(pei)(pei)置方(fang)式(shi)。根據(ju)不(bu)(bu)(bu)(bu)同雞舍(she)養(yang)(yang)殖數(shu)(shu)量、大小(xiao)(xiao)等兩(liang)種配(pei)(pei)(pei)置方(fang)式(shi)。一是根據(ju)冬(dong)季大的(de)小(xiao)(xiao)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)量,配(pei)(pei)(pei)置足(zu)夠風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)數(shu)(shu)量,在冬(dong)季養(yang)(yang)殖過程中完(wan)全(quan)(quan)不(bu)(bu)(bu)(bu)開(kai)啟通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)窗,只用(yong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)。二是根據(ju)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)大小(xiao)(xiao)配(pei)(pei)(pei)比(bi)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan),但不(bu)(bu)(bu)(bu)建(jian)議(yi)大雞舍(she)滿足(zu)小(xiao)(xiao)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)機(ji)的(de)配(pei)(pei)(pei)比(bi),此時小(xiao)(xiao)通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)在風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)不(bu)(bu)(bu)(bu)夠用(yong)時,開(kai)啟通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)窗,過渡(du)時機(ji)、操作(zuo)方(fang)式(shi)不(bu)(bu)(bu)(bu)好掌握(wo),難(nan)度(du)高(gao),容易出問題。如果配(pei)(pei)(pei)置風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)足(zu)夠,外界溫(wen)度(du)持續升(sheng)高(gao),用(yong)到(dao)溫(wen)控降(jiang)溫(wen)模式(shi)下,開(kai)啟側窗通(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng),相對(dui)時機(ji)更(geng)(geng)好,更(geng)(geng)安(an)全(quan)(quan)。