沙坪壩推薦廚房排煙管道價格

1. 技術(shu)背景(jing),在(zai)(zai)(zai)(zai)(zai)(zai)焊(han)(han)(han)(han)接(jie)接(jie)頭中(zhong)由于焊(han)(han)(han)(han)接(jie)所引起的(de)(de)(de)(de)(de)各種(zhong)裂(lie)紋(wen)(wen)(wen)，統稱(cheng)焊(han)(han)(han)(han)接(jie)裂(lie)紋(wen)(wen)(wen)。焊(han)(han)(han)(han)接(jie)裂(lie)紋(wen)(wen)(wen)在(zai)(zai)(zai)(zai)(zai)(zai)焊(han)(han)(han)(han)縫金屬與熱(re)影(ying)響區(qu)中(zhong)都(dou)可能產(chan)(chan)生，是(shi)(shi)焊(han)(han)(han)(han)接(jie)凝固冶金和(he)固相冶金過程(cheng)中(zhong)產(chan)(chan)生為危險的(de)(de)(de)(de)(de)一種(zhong)缺陷。焊(han)(han)(han)(han)接(jie)結構(gou)(gou)(gou)產(chan)(chan)生的(de)(de)(de)(de)(de)破壞事(shi)故(gu)(gu)大(da)部分(fen)都(dou)是(shi)(shi)焊(han)(han)(han)(han)接(jie)裂(lie)紋(wen)(wen)(wen)所引起的(de)(de)(de)(de)(de)。隨著現(xian)代工業的(de)(de)(de)(de)(de)發展，焊(han)(han)(han)(han)接(jie)結構(gou)(gou)(gou)也趨向大(da)型化、大(da)容量(liang)和(he)高(gao)參數發展。有(you)(you)的(de)(de)(de)(de)(de)在(zai)(zai)(zai)(zai)(zai)(zai)低溫、腐(fu)蝕(shi)介質(zhi)下(xia)工作，也有(you)(you)的(de)(de)(de)(de)(de)在(zai)(zai)(zai)(zai)(zai)(zai)高(gao)溫高(gao)壓下(xia)工作，廣泛(fan)都(dou)用到各種(zhong)高(gao)合金鋼(gang)、不(bu)銹鋼(gang)，以及種(zhong)種(zhong)合金材料(liao)。這些材料(liao)往往都(dou)對裂(lie)紋(wen)(wen)(wen)十(shi)分(fen)敏感，而裂(lie)紋(wen)(wen)(wen)卻又(you)是(shi)(shi)大(da)多重大(da)事(shi)故(gu)(gu)的(de)(de)(de)(de)(de)誘因，必(bi)須(xu)十(shi)分(fen)重視。焊(han)(han)(han)(han)接(jie)裂(lie)紋(wen)(wen)(wen)種(zhong)類繁(fan)多，產(chan)(chan)生的(de)(de)(de)(de)(de)條(tiao)件(jian)和(he)原因各不(bu)相同。有(you)(you)些裂(lie)紋(wen)(wen)(wen)在(zai)(zai)(zai)(zai)(zai)(zai)焊(han)(han)(han)(han)后立即產(chan)(chan)生了，有(you)(you)些在(zai)(zai)(zai)(zai)(zai)(zai)焊(han)(han)(han)(han)后延續一定(ding)時(shi)間(jian)再(zai)產(chan)(chan)生，甚至在(zai)(zai)(zai)(zai)(zai)(zai)使(shi)用過程(cheng)中(zhong)，在(zai)(zai)(zai)(zai)(zai)(zai)一定(ding)的(de)(de)(de)(de)(de)外(wai)界條(tiao)件(jian)誘發下(xia)再(zai)產(chan)(chan)生。裂(lie)紋(wen)(wen)(wen)既(ji)出現(xian)在(zai)(zai)(zai)(zai)(zai)(zai)焊(han)(han)(han)(han)縫和(he)熱(re)影(ying)響區(qu)表面，也產(chan)(chan)生在(zai)(zai)(zai)(zai)(zai)(zai)其內部。它對焊(han)(han)(han)(han)接(jie)結構(gou)(gou)(gou)的(de)(de)(de)(de)(de)危害(hai)有(you)(you)以下(xia)幾點。

1.通(tong)(tong)風(feng)(feng)(feng)、空氣調節系統的(de)(de)(de)(de)風(feng)(feng)(feng)管(guan)(guan)(guan)在下列部位應(ying)設(she)(she)置(zhi)(zhi)公(gong)(gong)稱動(dong)作溫(wen)度(du)為70℃的(de)(de)(de)(de)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)閥。①穿(chuan)越(yue)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)(fen)(fen)區(qu)(qu)處(chu)(chu)。②穿(chuan)越(yue)通(tong)(tong)風(feng)(feng)(feng)空調機房的(de)(de)(de)(de)房間隔(ge)(ge)墻和(he)樓板(ban)(ban)處(chu)(chu)。③穿(chuan)越(yue)重要或火(huo)(huo)(huo)災危(wei)險(xian)性大(da)的(de)(de)(de)(de)場(chang)(chang)所的(de)(de)(de)(de)房間隔(ge)(ge)墻和(he)樓板(ban)(ban)處(chu)(chu)。④穿(chuan)越(yue)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)(fen)(fen)隔(ge)(ge)處(chu)(chu)的(de)(de)(de)(de)變形縫兩(liang)側。⑤豎向風(feng)(feng)(feng)管(guan)(guan)(guan)與(yu)每層水(shui)(shui)平風(feng)(feng)(feng)管(guan)(guan)(guan)交(jiao)(jiao)接(jie)處(chu)(chu)的(de)(de)(de)(de)水(shui)(shui)平管(guan)(guan)(guan)段(duan)上，當建(jian)(jian)筑內(nei)每個防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)(fen)(fen)區(qu)(qu)的(de)(de)(de)(de)通(tong)(tong)風(feng)(feng)(feng)、空氣調節系統均獨立設(she)(she)置(zhi)(zhi)時，水(shui)(shui)平風(feng)(feng)(feng)管(guan)(guan)(guan)與(yu)豎向總管(guan)(guan)(guan)的(de)(de)(de)(de)交(jiao)(jiao)接(jie)處(chu)(chu)可不設(she)(she)置(zhi)(zhi)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)閥。2.公(gong)(gong)共建(jian)(jian)筑的(de)(de)(de)(de)浴室、衛生(sheng)間和(he)廚(chu)房的(de)(de)(de)(de)豎向排(pai)風(feng)(feng)(feng)管(guan)(guan)(guan)，應(ying)采取防(fang)(fang)(fang)(fang)止回流措施并(bing)宜在支(zhi)管(guan)(guan)(guan)上設(she)(she)置(zhi)(zhi)公(gong)(gong)稱動(dong)作溫(wen)度(du)為70℃的(de)(de)(de)(de)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)閥。公(gong)(gong)共建(jian)(jian)筑內(nei)廚(chu)房的(de)(de)(de)(de)排(pai)油煙(yan)(yan)(yan)管(guan)(guan)(guan)道宜按防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)(fen)(fen)區(qu)(qu)設(she)(she)置(zhi)(zhi)，且在與(yu)豎向排(pai)風(feng)(feng)(feng)管(guan)(guan)(guan)連接(jie)的(de)(de)(de)(de)支(zhi)管(guan)(guan)(guan)處(chu)(chu)應(ying)設(she)(she)置(zhi)(zhi)公(gong)(gong)稱動(dong)作溫(wen)度(du)為150℃的(de)(de)(de)(de)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)閥。 3.排(pai)煙(yan)(yan)(yan)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)閥（280℃）的(de)(de)(de)(de)設(she)(she)置(zhi)(zhi)場(chang)(chang)所：①排(pai)煙(yan)(yan)(yan)管(guan)(guan)(guan)進入排(pai)風(feng)(feng)(feng)機房處(chu)(chu)；②穿(chuan)越(yue)防(fang)(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)(fen)(fen)區(qu)(qu)的(de)(de)(de)(de)排(pai)煙(yan)(yan)(yan)管(guan)(guan)(guan)道上；③排(pai)煙(yan)(yan)(yan)系統的(de)(de)(de)(de)支(zhi)管(guan)(guan)(guan)上；

在空調送(song)風(feng)(feng)(feng)(feng)系(xi)統(tong)(tong)(tong)中(zhong)(zhong)(zhong)，空調送(song)風(feng)(feng)(feng)(feng)機送(song)出的風(feng)(feng)(feng)(feng)必(bi)須(xu)通(tong)(tong)過主干(gan)管(guan)(guan)分(fen)配到(dao)支(zhi)管(guan)(guan)中(zhong)(zhong)(zhong)；在排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)系(xi)統(tong)(tong)(tong)中(zhong)(zhong)(zhong)，煙(yan)(yan)(yan)(yan)(yan)氣由(you)支(zhi)管(guan)(guan)到(dao)主干(gan)管(guan)(guan)后，進入排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)風(feng)(feng)(feng)(feng)機排(pai)(pai)出。當(dang)建筑物內發生火(huo)(huo)(huo)災時(shi)，在通(tong)(tong)風(feng)(feng)(feng)(feng)、空調系(xi)統(tong)(tong)(tong)中(zhong)(zhong)(zhong)，為了(le)防止(zhi)火(huo)(huo)(huo)勢通(tong)(tong)過送(song)風(feng)(feng)(feng)(feng)系(xi)統(tong)(tong)(tong)蔓延，當(dang)送(song)風(feng)(feng)(feng)(feng)系(xi)統(tong)(tong)(tong)中(zhong)(zhong)(zhong)氣體溫(wen)度(du)達到(dao)70℃時(shi)，防火(huo)(huo)(huo)閥(fa)(fa)機構上(shang)熔(rong)斷器(qi)動(dong)作，閥(fa)(fa)門(men)(men)亦迅速關(guan)閥(fa)(fa)，切斷煙(yan)(yan)(yan)(yan)(yan)氣與火(huo)(huo)(huo)勢沿風(feng)(feng)(feng)(feng)管(guan)(guan)蔓延的通(tong)(tong)路。同樣，在排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)系(xi)統(tong)(tong)(tong)中(zhong)(zhong)(zhong)，發生火(huo)(huo)(huo)災時(shi)，排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)閥(fa)(fa)開啟，進行排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)，為了(le)截(jie)斷高溫(wen)煙(yan)(yan)(yan)(yan)(yan)氣在排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)管(guan)(guan)路中(zhong)(zhong)(zhong)流動(dong)，防止(zhi)火(huo)(huo)(huo)勢蔓延到(dao)另(ling)一防火(huo)(huo)(huo)分(fen)區，當(dang)排(pai)(pai)出的煙(yan)(yan)(yan)(yan)(yan)氣溫(wen)度(du)達到(dao)280℃時(shi)，排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)防火(huo)(huo)(huo)閥(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)口上(shang)熔(rong)斷器(qi)動(dong)作，閥(fa)(fa)門(men)(men)必(bi)須(xu)自動(dong)關(guan)閉(bi)，阻止(zhi)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)。由(you)此可見，防火(huo)(huo)(huo)閥(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)閥(fa)(fa)做(zuo)到(dao)了(le)該通(tong)(tong)則(ze)通(tong)(tong)，該斷則(ze)斷的隔煙(yan)(yan)(yan)(yan)(yan)阻火(huo)(huo)(huo)作用。

風(feng)(feng)(feng)管(guan)(guan)主(zhu)要指中(zhong)央空(kong)調(diao)系(xi)統的通風(feng)(feng)(feng)管(guan)(guan)道，它常(chang)常(chang)被忽視，但卻是空(kong)調(diao)系(xi)統的重要組(zu)成部分(fen)，目前(qian)常(chang)見(jian)的風(feng)(feng)(feng)管(guan)(guan)主(zhu)要有(you)四種：1）鍍鋅薄鋼板(ban)(ban)風(feng)(feng)(feng)管(guan)(guan)；2)無(wu)機(ji)(ji)玻璃鋼風(feng)(feng)(feng)管(guan)(guan)；3)復合玻纖(xian)(xian)板(ban)(ban)風(feng)(feng)(feng)管(guan)(guan)；4)纖(xian)(xian)維織物風(feng)(feng)(feng)管(guan)(guan)。鍍鋅薄鋼板(ban)(ban)風(feng)(feng)(feng)管(guan)(guan)：早使用的風(feng)(feng)(feng)管(guan)(guan)，采用鍍鋅薄鋼板(ban)(ban)制(zhi)作(zuo)，適合含(han)濕量小的一般性(xing)氣體的輸送(song)，有(you)易生銹，無(wu)保溫和消(xiao)聲功(gong)能(neng)，制(zhi)作(zuo)安裝周期(qi)長的特點。無(wu)機(ji)(ji)玻璃鋼風(feng)(feng)(feng)管(guan)(guan)：較新(xin)的風(feng)(feng)(feng)管(guan)(guan)類型，采用玻璃纖(xian)(xian)維增強無(wu)機(ji)(ji)材料制(zhi)作(zuo)，遇火(huo)不燃、耐腐(fu)蝕、份量重，硬度大但較脆，受自重影響(xiang)易變形酥(su)裂(lie)，無(wu)保溫和消(xiao)聲性(xing)能(neng)，制(zhi)作(zuo)安裝周期(qi)長。

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；推薦廚房排煙管道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。沙坪壩廚房排煙管道安(an)裝風管(guan)前應清除管(guan)內(nei)外雜物，并做好(hao)清潔和保(bao)護工作，風管(guan)安(an)裝的位置、標高(gao)和走(zou)向等應符合設計要求，現場風管(guan)接口的配置不得縮小有效截面。