![]() | 15808023761 15808023760 023-47546974 |
手機:15808023761
15808023760
電話(hua):023-47546974
網址:lianghm.cn
地址:重慶(qing)市江津區(qu)雙福新(xin)區(qu)福星大道937號鑫成瑞暖通廠區(qu)
在(zai)(zai)(zai)空(kong)(kong)調送(song)(song)風(feng)系(xi)統中,空(kong)(kong)調送(song)(song)風(feng)機送(song)(song)出的風(feng)必(bi)須通(tong)過主(zhu)干管(guan)(guan)分配到(dao)支(zhi)(zhi)管(guan)(guan)中;在(zai)(zai)(zai)排(pai)(pai)煙(yan)(yan)(yan)系(xi)統中,煙(yan)(yan)(yan)氣(qi)由(you)支(zhi)(zhi)管(guan)(guan)到(dao)主(zhu)干管(guan)(guan)后,進入排(pai)(pai)煙(yan)(yan)(yan)風(feng)機排(pai)(pai)出。當建筑物內發(fa)(fa)生(sheng)火(huo)(huo)災(zai)時,在(zai)(zai)(zai)通(tong)風(feng)、空(kong)(kong)調系(xi)統中,為(wei)(wei)了(le)防止(zhi)火(huo)(huo)勢(shi)通(tong)過送(song)(song)風(feng)系(xi)統蔓(man)延,當送(song)(song)風(feng)系(xi)統中氣(qi)體溫度達(da)到(dao)70℃時,防火(huo)(huo)閥(fa)(fa)機構上(shang)熔斷器(qi)動(dong)作,閥(fa)(fa)門亦迅速關閥(fa)(fa),切斷煙(yan)(yan)(yan)氣(qi)與火(huo)(huo)勢(shi)沿風(feng)管(guan)(guan)蔓(man)延的通(tong)路。同樣,在(zai)(zai)(zai)排(pai)(pai)煙(yan)(yan)(yan)系(xi)統中,發(fa)(fa)生(sheng)火(huo)(huo)災(zai)時,排(pai)(pai)煙(yan)(yan)(yan)閥(fa)(fa)開啟,進行(xing)排(pai)(pai)煙(yan)(yan)(yan),為(wei)(wei)了(le)截(jie)斷高溫煙(yan)(yan)(yan)氣(qi)在(zai)(zai)(zai)排(pai)(pai)煙(yan)(yan)(yan)管(guan)(guan)路中流(liu)動(dong),防止(zhi)火(huo)(huo)勢(shi)蔓(man)延到(dao)另一防火(huo)(huo)分區,當排(pai)(pai)出的煙(yan)(yan)(yan)氣(qi)溫度達(da)到(dao)280℃時,排(pai)(pai)煙(yan)(yan)(yan)防火(huo)(huo)閥(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)口上(shang)熔斷器(qi)動(dong)作,閥(fa)(fa)門必(bi)須自(zi)動(dong)關閉,阻止(zhi)排(pai)(pai)煙(yan)(yan)(yan)。由(you)此可見,防火(huo)(huo)閥(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)閥(fa)(fa)做到(dao)了(le)該通(tong)則通(tong),該斷則斷的隔煙(yan)(yan)(yan)阻火(huo)(huo)作用。
一(yi)、對(dui)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)制(zhi)作的(de)(de)(de)要(yao)(yao)求(qiu)進(jin)行(xing)檢查:檢查通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)穿越防護密(mi)(mi)(mi)(mi)閉(bi)(bi)墻、密(mi)(mi)(mi)(mi)閉(bi)(bi)墻的(de)(de)(de)預(yu)埋密(mi)(mi)(mi)(mi)閉(bi)(bi)穿墻短(duan)管(guan)(guan)(guan)(guan)(guan)。通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)預(yu)埋密(mi)(mi)(mi)(mi)閉(bi)(bi)短(duan)管(guan)(guan)(guan)(guan)(guan)采(cai)(cai)用厚(hou)(hou)度(du)(du)(du)不(bu)小(xiao)于3mm鋼板(ban)機械(xie)卷制(zhi)成形(其厚(hou)(hou)度(du)(du)(du)還應(ying)(ying)根據預(yu)埋管(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)徑(jing)大小(xiao)確定(ding),使預(yu)埋管(guan)(guan)(guan)(guan)(guan)不(bu)致變形),防爆超壓排(pai)氣活門的(de)(de)(de)預(yu)埋短(duan)管(guan)(guan)(guan)(guan)(guan)其厚(hou)(hou)度(du)(du)(du)為6mm,密(mi)(mi)(mi)(mi)閉(bi)(bi)短(duan)管(guan)(guan)(guan)(guan)(guan)中間應(ying)(ying)設(she)密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei),密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)厚(hou)(hou)度(du)(du)(du)為5mm,密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)高(gao)度(du)(du)(du)為50mm,密(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)與(yu)短(duan)管(guan)(guan)(guan)(guan)(guan)應(ying)(ying)雙面(mian)滿焊(han)、焊(han)縫(feng)嚴密(mi)(mi)(mi)(mi)。密(mi)(mi)(mi)(mi)閉(bi)(bi)穿墻短(duan)管(guan)(guan)(guan)(guan)(guan)兩端深(shen)處(chu)墻面(mian)的(de)(de)(de)長度(du)(du)(du)應(ying)(ying)大于100mm,管(guan)(guan)(guan)(guan)(guan)道(dao)內外部除(chu)與(yu)混凝土接(jie)(jie)(jie)(jie)觸部分(fen)外均應(ying)(ying)刷兩道(dao)防銹漆。二、對(dui)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)連接(jie)(jie)(jie)(jie)處(chu)制(zhi)作的(de)(de)(de)要(yao)(yao)求(qiu)進(jin)行(xing)檢查,對(dui)染(ran)毒(du)區的(de)(de)(de)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)連接(jie)(jie)(jie)(jie)方法(fa)(fa)及密(mi)(mi)(mi)(mi)封(feng)進(jin)行(xing)檢查。如無設(she)計(ji)要(yao)(yao)求(qiu),其風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)厚(hou)(hou)度(du)(du)(du)應(ying)(ying)采(cai)(cai)用大于等于3mm的(de)(de)(de)鋼板(ban)焊(han)接(jie)(jie)(jie)(jie)制(zhi)作而(er)成。風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)與(yu)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)連接(jie)(jie)(jie)(jie)應(ying)(ying)采(cai)(cai)用焊(han)接(jie)(jie)(jie)(jie)連接(jie)(jie)(jie)(jie)。通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)與(yu)密(mi)(mi)(mi)(mi)閉(bi)(bi)閥門的(de)(de)(de)連接(jie)(jie)(jie)(jie)應(ying)(ying)采(cai)(cai)用帶密(mi)(mi)(mi)(mi)封(feng)槽的(de)(de)(de)法(fa)(fa)蘭(lan)(lan)連接(jie)(jie)(jie)(jie),其法(fa)(fa)蘭(lan)(lan)面(mian)應(ying)(ying)經機床車削加工,保證(zheng)接(jie)(jie)(jie)(jie)觸應(ying)(ying)平整(zheng),法(fa)(fa)蘭(lan)(lan)面(mian)有(you)1~2mm深(shen)的(de)(de)(de)90°密(mi)(mi)(mi)(mi)封(feng)槽;風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)與(yu)設(she)備連接(jie)(jie)(jie)(jie)法(fa)(fa)蘭(lan)(lan)之間應(ying)(ying)采(cai)(cai)用整(zheng)體橡膠(jiao)法(fa)(fa)蘭(lan)(lan)墊圈(quan),防爆超壓排(pai)氣活門法(fa)(fa)蘭(lan)(lan)連接(jie)(jie)(jie)(jie)填(tian)料采(cai)(cai)用5mm整(zheng)張橡膠(jiao)墊圈(quan)密(mi)(mi)(mi)(mi)封(feng)(不(bu)得有(you)拼(pin)縫(feng)),其他染(ran)毒(du)區風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)連接(jie)(jie)(jie)(jie)及法(fa)(fa)蘭(lan)(lan)與(yu)設(she)備連接(jie)(jie)(jie)(jie)采(cai)(cai)用4~5mm整(zheng)張橡膠(jiao)墊圈(quan)密(mi)(mi)(mi)(mi)封(feng)(不(bu)得有(you)拼(pin)縫(feng)),連接(jie)(jie)(jie)(jie)處(chu)不(bu)得有(you)漏縫(feng)現象。
雖然在商業建筑與多種居住房的被動消防中,防火閥是關鍵組件,但在對建筑和其居住者的安全保護中,很多管理者沒有意識到防火閥的作用以及規定時間間隔內,防火閥的檢測、清潔及維護的重要意義。在高品質消防風機商業建筑中的建造中我們總會遇到一些麻煩,試圖在能源效率與室內空氣質量之間尋求平衡就是其中。大多商業建筑通過機械通風或空調系統解決,能夠測量和控制整個建筑的空氣變化。在通風管道系統的安裝上就存在上面提到的問題———如何在延遲或消防風機阻(zu)止(zhi)火(huo)災蔓延的建(jian)筑防火(huo)分隔與所允許空(kong)氣自由(you)流通(tong)的需(xu)要(yao)之(zhi)間(jian)達到(dao)平衡。滿(man)足空(kong)氣自由(you)流通(tong)需(xu)要(yao)不可避免地再(zai)引入一(yi)條通(tong)道(dao),而(er)這(zhe)卻(que)加(jia)快了火(huo)勢(shi)的蔓延———利用通(tong)風管(guan)道(dao)系統使用的通(tong)道(dao)。毫無疑問,這(zhe)中(zhong)斷了防火(huo)分隔,充當了建(jian)筑被動消防護面的“裂口”。
在(zai)葉輪(lun)運(yun)轉(zhuan)(zhuan)初期及(ji)所有(you)定(ding)期檢(jian)查(cha)的時(shi)候,只要(yao)一(yi)有(you)機會,都必須檢(jian)查(cha)葉輪(lun)是(shi)否(fou)出現(xian)裂紋、磨損、積塵(chen)等缺陷(xian)。只要(yao)有(you)可(ke)能(neng),都必須使葉輪(lun)保持清潔(jie)狀(zhuang)態(tai),并(bing)定(ding)期用(yong)鋼絲刷刷去上面的積塵(chen)和銹皮等,因為(wei)隨著(zhu)運(yun)行時(shi)間的加(jia)長(chang),這(zhe)些(xie)灰塵(chen)由于不(bu)(bu)可(ke)能(neng)均勻地附(fu)著(zhu)在(zai)葉輪(lun)上,而造成(cheng)葉輪(lun)平(ping)(ping)(ping)(ping)衡(heng)(heng)破壞(huai),以至引起轉(zhuan)(zhuan)子振動(dong)。葉輪(lun)只要(yao)進行了修(xiu)理,就(jiu)需要(yao)對其再作(zuo)動(dong)平(ping)(ping)(ping)(ping)衡(heng)(heng)。如有(you)條件,可(ke)以使用(yong)便攜(xie)試動(dong)平(ping)(ping)(ping)(ping)衡(heng)(heng)儀在(zai)現(xian)場進行平(ping)(ping)(ping)(ping)衡(heng)(heng)。在(zai)作(zuo)動(dong)平(ping)(ping)(ping)(ping)衡(heng)(heng)之(zhi)前,必須檢(jian)查(cha)所有(you)緊定(ding)螺栓(shuan)是(shi)否(fou)上緊。因為(wei)葉輪(lun)已經(jing)在(zai)不(bu)(bu)平(ping)(ping)(ping)(ping)衡(heng)(heng)狀(zhuang)態(tai)下運(yun)行了一(yi)段(duan)時(shi)間,這(zhe)些(xie)螺栓(shuan)可(ke)能(neng)已經(jing)松動(dong)。
1、 薄鋼板矩形(xing)(xing)(xing)(xing)風管(guan)(guan)的(de)(de)剛度(du)(du)(du)不(bu)夠(gou),表現形(xing)(xing)(xing)(xing)式(shi):風管(guan)(guan)的(de)(de)大邊(bian)上下有不(bu)同(tong)程度(du)(du)(du)的(de)(de)下沉,兩(liang)(liang)側面(mian)小(xiao)邊(bian)稍向外凸出,有明顯的(de)(de)變形(xing)(xing)(xing)(xing)。對(dui)產生的(de)(de)原因分(fen)析(xi):① 制作風管(guan)(guan)的(de)(de)鋼板厚度(du)(du)(du)不(bu)符(fu)合(he)施(shi)工(gong)(gong)及(ji)驗收(shou)規范(fan)的(de)(de)要求(qiu);② 咬口(kou)的(de)(de)形(xing)(xing)(xing)(xing)式(shi)選擇不(bu)當(dang);③ 沒有按(an)照《施(shi)工(gong)(gong)及(ji)驗收(shou)規范(fan)》要求(qiu),對(dui)于邊(bian)長≥630 mm或保溫風管(guan)(guan)≥800 mm,其管(guan)(guan)長在1 200mm以上,均(jun)應采取(qu)加固(gu)措施(shi)。2 、薄鋼板矩形(xing)(xing)(xing)(xing)風管(guan)(guan)扭曲、翹角,表現形(xing)(xing)(xing)(xing)式(shi):風管(guan)(guan)表面(mian)不(bu)平;對(dui)角線不(bu)相(xiang)等(deng)(deng);相(xiang)鄰表面(mian)互(hu)不(bu)垂(chui)直;兩(liang)(liang)相(xiang)對(dui)表面(mian)不(bu)平行及(ji)兩(liang)(liang)管(guan)(guan)端平面(mian)不(bu)平行等(deng)(deng)。產生的(de)(de)原因分(fen)析(xi):① 矩形(xing)(xing)(xing)(xing)板料(liao)下料(liao)后,未對(dui)四個角進(jin)行嚴格的(de)(de)角方測(ce)量;② 風管(guan)(guan)的(de)(de)大邊(bian)或小(xiao)邊(bian)的(de)(de)兩(liang)(liang)個相(xiang)對(dui)面(mian)的(de)(de)板料(liao)長度(du)(du)(du)和寬(kuan)度(du)(du)(du)不(bu)相(xiang)等(deng)(deng);③ 風管(guan)(guan)的(de)(de)四個角處的(de)(de)咬口(kou)寬(kuan)度(du)(du)(du)不(bu)相(xiang)等(deng)(deng);④ 手工(gong)(gong)咬口(kou)合(he)縫受力(li)不(bu)均(jun)。
通(tong)風(feng)、空調(diao)設(she)(she)備(bei)防(fang)火(huo)(huo)防(fang)爆(bao)(bao)(bao)措施(shi)1、空氣(qi)中(zhong)含(han)有容易(yi)起火(huo)(huo)或爆(bao)(bao)(bao)炸(zha)物(wu)質(zhi)的(de)(de)(de)(de)(de)(de)房(fang)間,其(qi)送(song)、排(pai)風(feng)系統(tong)應采(cai)(cai)用防(fang)爆(bao)(bao)(bao)型(xing)的(de)(de)(de)(de)(de)(de)通(tong)風(feng)設(she)(she)備(bei)和(he)不(bu)(bu)會產生(sheng)火(huo)(huo)花的(de)(de)(de)(de)(de)(de)材料(liao)(如可(ke)采(cai)(cai)用有色金屬制造的(de)(de)(de)(de)(de)(de)風(feng)機(ji)(ji)(ji)葉片和(he)防(fang)爆(bao)(bao)(bao)電動機(ji)(ji)(ji))。當送(song)風(feng)機(ji)(ji)(ji)布(bu)置(zhi)在(zai)單獨分隔的(de)(de)(de)(de)(de)(de)通(tong)風(feng)機(ji)(ji)(ji)房(fang)內,且送(song)風(feng)干管上(shang)設(she)(she)置(zhi)防(fang)止回流設(she)(she)施(shi)時(shi),可(ke)采(cai)(cai)用普通(tong)型(xing)通(tong)風(feng)設(she)(she)備(bei)。2、含(han)有易(yi)燃(ran)、易(yi)爆(bao)(bao)(bao)粉塵(碎屑(xie))的(de)(de)(de)(de)(de)(de)空氣(qi),在(zai)進入(ru)排(pai)風(feng)機(ji)(ji)(ji)前應采(cai)(cai)用不(bu)(bu)產生(sheng)火(huo)(huo)花的(de)(de)(de)(de)(de)(de)除(chu)(chu)塵器進行處理(li),以防(fang)止除(chu)(chu)塵器工作過(guo)程中(zhong)產生(sheng)火(huo)(huo)花引起粉塵、碎屑(xie)燃(ran)燒或爆(bao)(bao)(bao)炸(zha)。對于遇濕(shi)可(ke)能爆(bao)(bao)(bao)炸(zha)的(de)(de)(de)(de)(de)(de)粉塵(如電石、鋅(xin)粉、鋁鎂合金粉等),嚴禁(jin)采(cai)(cai)用濕(shi)式(shi)除(chu)(chu)塵器。3、排(pai)除(chu)(chu)、輸(shu)送(song)有燃(ran)燒、爆(bao)(bao)(bao)炸(zha)危險的(de)(de)(de)(de)(de)(de)氣(qi)體(ti)、蒸氣(qi)和(he)粉塵的(de)(de)(de)(de)(de)(de)排(pai)風(feng)系統(tong),應采(cai)(cai)用不(bu)(bu)燃(ran)材料(liao)并設(she)(she)有導除(chu)(chu)靜電的(de)(de)(de)(de)(de)(de)接地裝置(zhi)。其(qi)排(pai)風(feng)設(she)(she)備(bei)不(bu)(bu)應布(bu)置(zhi)在(zai)地下、半地下建(jian)筑(室)內,以防(fang)止有爆(bao)(bao)(bao)炸(zha)危險的(de)(de)(de)(de)(de)(de)蒸氣(qi)和(he)粉塵等物(wu)質(zhi)的(de)(de)(de)(de)(de)(de)積聚。4、排(pai)除(chu)(chu)、輸(shu)送(song)溫度超過(guo)80℃的(de)(de)(de)(de)(de)(de)空氣(qi)或其(qi)他(ta)氣(qi)體(ti)以及容易(yi)起火(huo)(huo)的(de)(de)(de)(de)(de)(de)碎屑(xie)的(de)(de)(de)(de)(de)(de)管道(dao),與(yu)可(ke)燃(ran)或難(nan)燃(ran)物(wu)體(ti)之間應保持不(bu)(bu)小(xiao)于150mm的(de)(de)(de)(de)(de)(de)間隙,或采(cai)(cai)用厚度不(bu)(bu)小(xiao)于50mm的(de)(de)(de)(de)(de)(de)不(bu)(bu)燃(ran)材料(liao)隔熱,以防(fang)止填塞物(wu)與(yu)構件(jian)因受這(zhe)些(xie)高(gao)溫管道(dao)的(de)(de)(de)(de)(de)(de)影響而導致火(huo)(huo)災。當管道(dao)互(hu)為上(shang)下布(bu)置(zhi)時(shi),表面溫度較高(gao)者應布(bu)置(zhi)在(zai)上(shang)面。