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風機是依靠輸入的機械能,提高氣體壓力并排送氣體的機械,它是一種從動的流體機械。風機是我國對氣體壓縮和氣體輸送機械的習慣簡稱,通常所說的風機包括通風機,鼓風機,壓縮機以及羅茨鼓風機,離心式風機,回轉式風機,水環式風機,但是通風設備批發不包括活塞壓縮機等容積式鼓風機和壓縮機。氣體壓縮和氣體輸送機械是把旋轉的機械轉換為氣體壓力能和動能,并將氣體輸送出去的機械。風機主要由風葉、百葉窗、開窗機構、電機、皮帶輪、進風罩、內框架、機殼、安全網等部件組成。開機時由電機驅動風葉旋轉,并使開窗機構打開百葉窗排風。通風設備停(ting)機(ji)時百葉窗自動關閉(bi)。風(feng)(feng)機(ji)廣泛用(yong)于工(gong)(gong)廠、礦井(jing)、隧(sui)道、冷卻(que)塔、車(che)輛、船(chuan)舶和(he)建筑物的通(tong)(tong)風(feng)(feng)、排(pai)塵(chen)和(he)冷卻(que);鍋爐(lu)和(he)工(gong)(gong)業爐(lu)窯的通(tong)(tong)風(feng)(feng)和(he)引風(feng)(feng);空氣調節設備和(he)家用(yong)電器設備中的冷卻(que)和(he)通(tong)(tong)風(feng)(feng);谷物的烘干和(he)選(xuan)送;風(feng)(feng)洞風(feng)(feng)源和(he)氣墊船(chuan)的充氣和(he)推進等。
防(fang)火(huo)(huo)(huo)閥:采(cai)用70℃溫度熔(rong)斷(duan)器(qi)自動(dong)(dong)(dong)關閉(bi)(防(fang)火(huo)(huo)(huo)).可(ke)輸出聯動(dong)(dong)(dong)訊(xun)號,用于通(tong)風(feng)(feng)空調(diao)(diao)系(xi)(xi)(xi)統(tong)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)內(nei),防(fang)止火(huo)(huo)(huo)勢沿風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)蔓延。排(pai)(pai)煙(yan)(yan)防(fang)火(huo)(huo)(huo)閥:電訊(xun)號開啟,手動(dong)(dong)(dong)開啟,輸出動(dong)(dong)(dong)作電訊(xun)號.用于排(pai)(pai)煙(yan)(yan)風(feng)(feng)機吸入(ru)口管(guan)(guan)(guan)(guan)(guan)道或排(pai)(pai)煙(yan)(yan)支管(guan)(guan)(guan)(guan)(guan)上(shang)。采(cai)用280℃溫度熔(rong)斷(duan)器(qi)重新關閉(bi)。防(fang)火(huo)(huo)(huo)閥——通(tong)風(feng)(feng)空調(diao)(diao)系(xi)(xi)(xi)統(tong)70℃:風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)穿(chuan)越防(fang)火(huo)(huo)(huo)分區、隔墻樓板、水平(ping)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)的(de)水平(ping)管(guan)(guan)(guan)(guan)(guan)段上(shang)(系(xi)(xi)(xi)統(tong)獨立設置可(ke)不設)、公(gong)共建(jian)筑(zhu)豎(shu)向排(pai)(pai)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)支管(guan)(guan)(guan)(guan)(guan);150℃:公(gong)共建(jian)筑(zhu)廚房排(pai)(pai)油煙(yan)(yan)管(guan)(guan)(guan)(guan)(guan)支管(guan)(guan)(guan)(guan)(guan);排(pai)(pai)煙(yan)(yan)防(fang)火(huo)(huo)(huo)閥——消(xiao)防(fang)排(pai)(pai)煙(yan)(yan)系(xi)(xi)(xi)統(tong)280℃:消(xiao)防(fang)排(pai)(pai)煙(yan)(yan)管(guan)(guan)(guan)(guan)(guan)道;
在葉(xie)輪運(yun)轉初期及所有定期檢(jian)查的時(shi)候,只(zhi)要(yao)一有機(ji)會,都(dou)必須檢(jian)查葉(xie)輪是(shi)(shi)否(fou)出現(xian)裂紋、磨(mo)損、積(ji)塵等(deng)(deng)缺陷。只(zhi)要(yao)有可(ke)能(neng),都(dou)必須使葉(xie)輪保持清潔狀(zhuang)態,并定期用鋼絲刷刷去上面的積(ji)塵和銹皮(pi)等(deng)(deng),因(yin)為(wei)隨(sui)著(zhu)運(yun)行(xing)(xing)時(shi)間的加長,這些(xie)灰塵由于(yu)不可(ke)能(neng)均勻地附(fu)著(zhu)在葉(xie)輪上,而造(zao)成葉(xie)輪平(ping)(ping)衡(heng)破壞,以至引起轉子振動。葉(xie)輪只(zhi)要(yao)進行(xing)(xing)了(le)修理,就(jiu)需要(yao)對其再作動平(ping)(ping)衡(heng)。如有條件(jian),可(ke)以使用便(bian)攜(xie)試(shi)動平(ping)(ping)衡(heng)儀(yi)在現(xian)場進行(xing)(xing)平(ping)(ping)衡(heng)。在作動平(ping)(ping)衡(heng)之前,必須檢(jian)查所有緊定螺栓是(shi)(shi)否(fou)上緊。因(yin)為(wei)葉(xie)輪已(yi)經在不平(ping)(ping)衡(heng)狀(zhuang)態下運(yun)行(xing)(xing)了(le)一段時(shi)間,這些(xie)螺栓可(ke)能(neng)已(yi)經松動。
1.風(feng)(feng)管(guan)(guan)(guan)(guan)程度(du)安(an)裝(zhuang),邊(bian)長(chang)(chang)尺(chi)寸小于(yu)(yu)(yu)(yu)(yu)(yu)等(deng)于(yu)(yu)(yu)(yu)(yu)(yu)400mm,間(jian)(jian)距(ju)(ju)不(bu)(bu)(bu)(bu)應(ying)(ying)(ying)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)4m;大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)400mm,不(bu)(bu)(bu)(bu)應(ying)(ying)(ying)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)3m;對于(yu)(yu)(yu)(yu)(yu)(yu)薄鋼板法蘭的風(feng)(feng)管(guan)(guan)(guan)(guan),其(qi)支、吊架(jia)間(jian)(jian)距(ju)(ju)不(bu)(bu)(bu)(bu)應(ying)(ying)(ying)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)3m。2.風(feng)(feng)管(guan)(guan)(guan)(guan)垂(chui)直(zhi)(zhi)安(an)裝(zhuang),間(jian)(jian)距(ju)(ju)不(bu)(bu)(bu)(bu)應(ying)(ying)(ying)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)4m,單(dan)(dan)根(gen)直(zhi)(zhi)管(guan)(guan)(guan)(guan)至(zhi)少應(ying)(ying)(ying)有2個固(gu)(gu)(gu)(gu)定(ding)點。3.支、吊架(jia)不(bu)(bu)(bu)(bu)宜設置在風(feng)(feng)口(kou)(kou)、閥門(men)、檢討門(men)及(ji)自控(kong)機構處,離(li)風(feng)(feng)口(kou)(kou)或(huo)插接管(guan)(guan)(guan)(guan)的距(ju)(ju)離(li)不(bu)(bu)(bu)(bu)宜小于(yu)(yu)(yu)(yu)(yu)(yu)200mm。4.當程度(du)懸吊的主(zhu)、干風(feng)(feng)管(guan)(guan)(guan)(guan)長(chang)(chang)度(du)超過(guo)20m時(shi)(shi),應(ying)(ying)(ying)設置防(fang)止擺動(dong)固(gu)(gu)(gu)(gu)定(ding)點,每個系(xi)統不(bu)(bu)(bu)(bu)應(ying)(ying)(ying)少于(yu)(yu)(yu)(yu)(yu)(yu)1個。5.防(fang)火閥直(zhi)(zhi)徑或(huo)長(chang)(chang)邊(bian)尺(chi)寸大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)等(deng)于(yu)(yu)(yu)(yu)(yu)(yu)630mm時(shi)(shi),宜設獨立支、吊架(jia)。6.帶(dai)高(gao)效過(guo)濾器的送風(feng)(feng)口(kou)(kou),應(ying)(ying)(ying)采(cai)取可分離(li)調節高(gao)度(du)的吊桿。金屬風(feng)(feng)管(guan)(guan)(guan)(guan)的加(jia)固(gu)(gu)(gu)(gu):矩形風(feng)(feng)管(guan)(guan)(guan)(guan)邊(bian)長(chang)(chang)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)630mm、保溫風(feng)(feng)管(guan)(guan)(guan)(guan)邊(bian)長(chang)(chang)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)800mm,并且管(guan)(guan)(guan)(guan)段長(chang)(chang)度(du)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)1250mm或(huo)低(di)壓風(feng)(feng)管(guan)(guan)(guan)(guan)單(dan)(dan)邊(bian)平面積大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)1.2m2、中、高(gao)壓風(feng)(feng)管(guan)(guan)(guan)(guan)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)1.0m2中,均應(ying)(ying)(ying)采(cai)用加(jia)固(gu)(gu)(gu)(gu)辦法。角鋼、加(jia)固(gu)(gu)(gu)(gu)筋的加(jia)固(gu)(gu)(gu)(gu),其(qi)高(gao)度(du)應(ying)(ying)(ying)小于(yu)(yu)(yu)(yu)(yu)(yu)或(huo)等(deng)于(yu)(yu)(yu)(yu)(yu)(yu)風(feng)(feng)管(guan)(guan)(guan)(guan)的寬度(du)。角鋼、加(jia)固(gu)(gu)(gu)(gu)筋與風(feng)(feng)管(guan)(guan)(guan)(guan)鉚接的間(jian)(jian)隔應(ying)(ying)(ying)均勻,不(bu)(bu)(bu)(bu)應(ying)(ying)(ying)大(da)(da)于(yu)(yu)(yu)(yu)(yu)(yu)220mm。.對于(yu)(yu)(yu)(yu)(yu)(yu)凈(jing)化空調系(xi)統,不(bu)(bu)(bu)(bu)應(ying)(ying)(ying)在風(feng)(feng)管(guan)(guan)(guan)(guan)內設加(jia)固(gu)(gu)(gu)(gu)框及(ji)加(jia)固(gu)(gu)(gu)(gu)筋。
一、對通(tong)(tong)風(feng)管(guan)(guan)(guan)(guan)道(dao)制(zhi)作(zuo)的(de)(de)(de)(de)要求進行(xing)(xing)檢查(cha):檢查(cha)通(tong)(tong)風(feng)管(guan)(guan)(guan)(guan)道(dao)穿越防(fang)(fang)(fang)護密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)墻、密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)墻的(de)(de)(de)(de)預(yu)埋(mai)密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)穿墻短(duan)管(guan)(guan)(guan)(guan)。通(tong)(tong)風(feng)預(yu)埋(mai)密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)短(duan)管(guan)(guan)(guan)(guan)采用(yong)(yong)(yong)厚(hou)度(du)不(bu)小(xiao)于(yu)3mm鋼板機(ji)械卷制(zhi)成(cheng)(cheng)形(xing)(xing)(其(qi)厚(hou)度(du)還應(ying)(ying)根據(ju)預(yu)埋(mai)管(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)徑大(da)(da)小(xiao)確定,使預(yu)埋(mai)管(guan)(guan)(guan)(guan)不(bu)致變形(xing)(xing)),防(fang)(fang)(fang)爆(bao)超壓排氣活(huo)(huo)門(men)的(de)(de)(de)(de)預(yu)埋(mai)短(duan)管(guan)(guan)(guan)(guan)其(qi)厚(hou)度(du)為(wei)6mm,密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)短(duan)管(guan)(guan)(guan)(guan)中間應(ying)(ying)設(she)密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)肋,密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)肋厚(hou)度(du)為(wei)5mm,密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)肋高度(du)為(wei)50mm,密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)肋與短(duan)管(guan)(guan)(guan)(guan)應(ying)(ying)雙面(mian)滿焊、焊縫嚴密(mi)(mi)(mi)。密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)穿墻短(duan)管(guan)(guan)(guan)(guan)兩端(duan)深處(chu)墻面(mian)的(de)(de)(de)(de)長度(du)應(ying)(ying)大(da)(da)于(yu)100mm,管(guan)(guan)(guan)(guan)道(dao)內外部除與混凝土接(jie)(jie)(jie)(jie)(jie)觸部分(fen)外均(jun)應(ying)(ying)刷兩道(dao)防(fang)(fang)(fang)銹漆(qi)。二、對風(feng)管(guan)(guan)(guan)(guan)連(lian)接(jie)(jie)(jie)(jie)(jie)處(chu)制(zhi)作(zuo)的(de)(de)(de)(de)要求進行(xing)(xing)檢查(cha),對染(ran)毒區(qu)的(de)(de)(de)(de)通(tong)(tong)風(feng)管(guan)(guan)(guan)(guan)道(dao)連(lian)接(jie)(jie)(jie)(jie)(jie)方法(fa)(fa)及密(mi)(mi)(mi)封進行(xing)(xing)檢查(cha)。如無設(she)計要求,其(qi)風(feng)管(guan)(guan)(guan)(guan)厚(hou)度(du)應(ying)(ying)采用(yong)(yong)(yong)大(da)(da)于(yu)等于(yu)3mm的(de)(de)(de)(de)鋼板焊接(jie)(jie)(jie)(jie)(jie)制(zhi)作(zuo)而成(cheng)(cheng)。風(feng)管(guan)(guan)(guan)(guan)與風(feng)管(guan)(guan)(guan)(guan)連(lian)接(jie)(jie)(jie)(jie)(jie)應(ying)(ying)采用(yong)(yong)(yong)焊接(jie)(jie)(jie)(jie)(jie)連(lian)接(jie)(jie)(jie)(jie)(jie)。通(tong)(tong)風(feng)管(guan)(guan)(guan)(guan)道(dao)與密(mi)(mi)(mi)閉(bi)(bi)(bi)(bi)閥(fa)門(men)的(de)(de)(de)(de)連(lian)接(jie)(jie)(jie)(jie)(jie)應(ying)(ying)采用(yong)(yong)(yong)帶密(mi)(mi)(mi)封槽的(de)(de)(de)(de)法(fa)(fa)蘭(lan)連(lian)接(jie)(jie)(jie)(jie)(jie),其(qi)法(fa)(fa)蘭(lan)面(mian)應(ying)(ying)經機(ji)床(chuang)車削加工,保證接(jie)(jie)(jie)(jie)(jie)觸應(ying)(ying)平整(zheng)(zheng),法(fa)(fa)蘭(lan)面(mian)有1~2mm深的(de)(de)(de)(de)90°密(mi)(mi)(mi)封槽;風(feng)管(guan)(guan)(guan)(guan)與設(she)備連(lian)接(jie)(jie)(jie)(jie)(jie)法(fa)(fa)蘭(lan)之間應(ying)(ying)采用(yong)(yong)(yong)整(zheng)(zheng)體(ti)橡膠(jiao)法(fa)(fa)蘭(lan)墊(dian)圈(quan)(quan),防(fang)(fang)(fang)爆(bao)超壓排氣活(huo)(huo)門(men)法(fa)(fa)蘭(lan)連(lian)接(jie)(jie)(jie)(jie)(jie)填料(liao)采用(yong)(yong)(yong)5mm整(zheng)(zheng)張(zhang)橡膠(jiao)墊(dian)圈(quan)(quan)密(mi)(mi)(mi)封(不(bu)得(de)有拼(pin)(pin)縫),其(qi)他染(ran)毒區(qu)風(feng)管(guan)(guan)(guan)(guan)連(lian)接(jie)(jie)(jie)(jie)(jie)及法(fa)(fa)蘭(lan)與設(she)備連(lian)接(jie)(jie)(jie)(jie)(jie)采用(yong)(yong)(yong)4~5mm整(zheng)(zheng)張(zhang)橡膠(jiao)墊(dian)圈(quan)(quan)密(mi)(mi)(mi)封(不(bu)得(de)有拼(pin)(pin)縫),連(lian)接(jie)(jie)(jie)(jie)(jie)處(chu)不(bu)得(de)有漏縫現象(xiang)。
雖然在(zai)(zai)商(shang)(shang)業(ye)建(jian)(jian)(jian)筑(zhu)與(yu)多種居住房的(de)(de)(de)被動消防中,防火(huo)(huo)(huo)閥(fa)是(shi)關鍵組件,但在(zai)(zai)對(dui)建(jian)(jian)(jian)筑(zhu)和(he)其居住者(zhe)的(de)(de)(de)安(an)全保護(hu)中,很多管(guan)(guan)理者(zhe)沒有意(yi)識到(dao)防火(huo)(huo)(huo)閥(fa)的(de)(de)(de)作(zuo)用以及規定時間(jian)間(jian)隔(ge)內(nei),防火(huo)(huo)(huo)閥(fa)的(de)(de)(de)檢測、清潔及維護(hu)的(de)(de)(de)重要(yao)意(yi)義。在(zai)(zai)商(shang)(shang)業(ye)建(jian)(jian)(jian)筑(zhu)中的(de)(de)(de)建(jian)(jian)(jian)造中我們總(zong)會遇到(dao)一些(xie)麻煩,試圖在(zai)(zai)能源效率與(yu)室內(nei)空(kong)(kong)氣質量之(zhi)間(jian)尋求平衡就是(shi)其中。大多商(shang)(shang)業(ye)建(jian)(jian)(jian)筑(zhu)通(tong)(tong)(tong)(tong)過機械通(tong)(tong)(tong)(tong)風或(huo)空(kong)(kong)調(diao)系(xi)統解決,能夠測量和(he)控制(zhi)整個(ge)建(jian)(jian)(jian)筑(zhu)的(de)(de)(de)空(kong)(kong)氣變化。在(zai)(zai)通(tong)(tong)(tong)(tong)風管(guan)(guan)道(dao)系(xi)統的(de)(de)(de)安(an)裝上就存在(zai)(zai)上面提到(dao)的(de)(de)(de)問(wen)題(ti)———如何在(zai)(zai)延(yan)遲或(huo)阻(zu)止火(huo)(huo)(huo)災蔓延(yan)的(de)(de)(de)建(jian)(jian)(jian)筑(zhu)防火(huo)(huo)(huo)分隔(ge)與(yu)所允(yun)許空(kong)(kong)氣自由流(liu)通(tong)(tong)(tong)(tong)的(de)(de)(de)需要(yao)之(zhi)間(jian)達到(dao)平衡。滿足空(kong)(kong)氣自由流(liu)通(tong)(tong)(tong)(tong)需要(yao)不可避(bi)免地再引入(ru)一條(tiao)通(tong)(tong)(tong)(tong)道(dao),而這(zhe)(zhe)卻(que)加快了(le)(le)火(huo)(huo)(huo)勢的(de)(de)(de)蔓延(yan)———利用通(tong)(tong)(tong)(tong)風管(guan)(guan)道(dao)系(xi)統使用的(de)(de)(de)通(tong)(tong)(tong)(tong)道(dao)。毫無疑問(wen),這(zhe)(zhe)中斷了(le)(le)防火(huo)(huo)(huo)分隔(ge),充當了(le)(le)建(jian)(jian)(jian)筑(zhu)被動消防護(hu)面的(de)(de)(de)“裂口(kou)”。