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1.通(tong)(tong)風(feng)(feng)(feng)(feng)、空氣調(diao)(diao)節系(xi)統的(de)(de)(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)在下(xia)列部位應設置(zhi)(zhi)公稱(cheng)動(dong)作(zuo)溫度(du)為70℃的(de)(de)(de)(de)防(fang)(fang)(fang)火(huo)閥。①穿(chuan)(chuan)越(yue)防(fang)(fang)(fang)火(huo)分區(qu)(qu)(qu)處(chu)(chu)。②穿(chuan)(chuan)越(yue)通(tong)(tong)風(feng)(feng)(feng)(feng)空調(diao)(diao)機(ji)房(fang)(fang)(fang)的(de)(de)(de)(de)房(fang)(fang)(fang)間(jian)隔墻(qiang)和樓板處(chu)(chu)。③穿(chuan)(chuan)越(yue)重要或火(huo)災危險性大的(de)(de)(de)(de)場(chang)所(suo)的(de)(de)(de)(de)房(fang)(fang)(fang)間(jian)隔墻(qiang)和樓板處(chu)(chu)。④穿(chuan)(chuan)越(yue)防(fang)(fang)(fang)火(huo)分隔處(chu)(chu)的(de)(de)(de)(de)變形縫(feng)兩側。⑤豎向(xiang)風(feng)(feng)(feng)(feng)管(guan)(guan)與(yu)每(mei)層水平(ping)風(feng)(feng)(feng)(feng)管(guan)(guan)交接處(chu)(chu)的(de)(de)(de)(de)水平(ping)管(guan)(guan)段上(shang),當建(jian)筑內每(mei)個防(fang)(fang)(fang)火(huo)分區(qu)(qu)(qu)的(de)(de)(de)(de)通(tong)(tong)風(feng)(feng)(feng)(feng)、空氣調(diao)(diao)節系(xi)統均獨(du)立設置(zhi)(zhi)時,水平(ping)風(feng)(feng)(feng)(feng)管(guan)(guan)與(yu)豎向(xiang)總管(guan)(guan)的(de)(de)(de)(de)交接處(chu)(chu)可不設置(zhi)(zhi)防(fang)(fang)(fang)火(huo)閥。2.公共建(jian)筑的(de)(de)(de)(de)浴室、衛(wei)生間(jian)和廚房(fang)(fang)(fang)的(de)(de)(de)(de)豎向(xiang)排(pai)(pai)風(feng)(feng)(feng)(feng)管(guan)(guan),應采(cai)取防(fang)(fang)(fang)止回流措施并宜(yi)在支(zhi)管(guan)(guan)上(shang)設置(zhi)(zhi)公稱(cheng)動(dong)作(zuo)溫度(du)為70℃的(de)(de)(de)(de)防(fang)(fang)(fang)火(huo)閥。公共建(jian)筑內廚房(fang)(fang)(fang)的(de)(de)(de)(de)排(pai)(pai)油煙(yan)(yan)(yan)管(guan)(guan)道宜(yi)按(an)防(fang)(fang)(fang)火(huo)分區(qu)(qu)(qu)設置(zhi)(zhi),且(qie)在與(yu)豎向(xiang)排(pai)(pai)風(feng)(feng)(feng)(feng)管(guan)(guan)連接的(de)(de)(de)(de)支(zhi)管(guan)(guan)處(chu)(chu)應設置(zhi)(zhi)公稱(cheng)動(dong)作(zuo)溫度(du)為150℃的(de)(de)(de)(de)防(fang)(fang)(fang)火(huo)閥。 3.排(pai)(pai)煙(yan)(yan)(yan)防(fang)(fang)(fang)火(huo)閥(280℃)的(de)(de)(de)(de)設置(zhi)(zhi)場(chang)所(suo):①排(pai)(pai)煙(yan)(yan)(yan)管(guan)(guan)進入(ru)排(pai)(pai)風(feng)(feng)(feng)(feng)機(ji)房(fang)(fang)(fang)處(chu)(chu);②穿(chuan)(chuan)越(yue)防(fang)(fang)(fang)火(huo)分區(qu)(qu)(qu)的(de)(de)(de)(de)排(pai)(pai)煙(yan)(yan)(yan)管(guan)(guan)道上(shang);③排(pai)(pai)煙(yan)(yan)(yan)系(xi)統的(de)(de)(de)(de)支(zhi)管(guan)(guan)上(shang);
鑒(jian)于軸流(liu)(liu)(liu)(liu)(liu)(liu)風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)有紊流(liu)(liu)(liu)(liu)(liu)(liu)區的(de)性能特點,在(zai)(zai)選(xuan)型和使用時,需要注意以下(xia)(xia)兩(liang)點:建議使用在(zai)(zai)空曠環境(jing)中,軸流(liu)(liu)(liu)(liu)(liu)(liu)風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)的(de)輸入(ru)(ru)功率(lv)隨系(xi)統靜(jing)壓的(de)增(zeng)大而增(zeng)大,而在(zai)(zai)紊流(liu)(liu)(liu)(liu)(liu)(liu)區,輸入(ru)(ru)功率(lv)的(de)增(zeng)大幅(fu)度會更大。因此,軸流(liu)(liu)(liu)(liu)(liu)(liu)風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)一般多應用在(zai)(zai)有較大空曠環境(jing)的(de)場合(he)下(xia)(xia),可以使其工(gong)作在(zai)(zai)靜(jing)壓較低的(de)環境(jing)下(xia)(xia),降(jiang)低功耗,保證穩定性和壽命。定期(qi)清(qing)理風(feng)(feng)(feng)(feng)(feng)(feng)道(dao),當(dang)軸流(liu)(liu)(liu)(liu)(liu)(liu)風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)應用在(zai)(zai)較為封閉的(de)風(feng)(feng)(feng)(feng)(feng)(feng)道(dao)系(xi)統中時,長期(qi)運行后風(feng)(feng)(feng)(feng)(feng)(feng)道(dao)中的(de)積(ji)灰、垃(la)圾逐漸(jian)(jian)變多,會使風(feng)(feng)(feng)(feng)(feng)(feng)道(dao)內的(de)靜(jing)壓逐漸(jian)(jian)增(zeng)加,使得風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)的(de)運行工(gong)況(kuang)點逐漸(jian)(jian)左(zuo)移。這不(bu)僅(jin)會降(jiang)低風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)性能,更重要的(de)是會增(zeng)加軸流(liu)(liu)(liu)(liu)(liu)(liu)風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)進入(ru)(ru)紊流(liu)(liu)(liu)(liu)(liu)(liu)區的(de)風(feng)(feng)(feng)(feng)(feng)(feng)險。因此必須(xu)要定期(qi)清(qing)理風(feng)(feng)(feng)(feng)(feng)(feng)道(dao),保證風(feng)(feng)(feng)(feng)(feng)(feng)機(ji)(ji)工(gong)況(kuang)點不(bu)產(chan)生較大偏移。
1、70℃防(fang)火閥(fa)(fa)(fa)用(yong)在空調送風(feng)(feng)(feng)、通風(feng)(feng)(feng)系(xi)(xi)統管道(dao)(dao)上;平時(shi)(shi)(shi)(shi)常(chang)開(kai),發生(sheng)(sheng)火災時(shi)(shi)(shi)(shi)關(guan)(guan)閉(bi)(bi),聯(lian)鎖(suo)風(feng)(feng)(feng)機,使風(feng)(feng)(feng)機關(guan)(guan)閉(bi)(bi);2、280℃防(fang)火閥(fa)(fa)(fa)用(yong)在排(pai)煙(yan)系(xi)(xi)統管道(dao)(dao)上,平時(shi)(shi)(shi)(shi)常(chang)開(kai),發生(sheng)(sheng)火災時(shi)(shi)(shi)(shi)排(pai)煙(yan),當煙(yan)氣溫度(du)達(da)到(dao)(dao)280度(du)時(shi)(shi)(shi)(shi),防(fang)火閥(fa)(fa)(fa)關(guan)(guan)閉(bi)(bi),聯(lian)鎖(suo)風(feng)(feng)(feng)機關(guan)(guan)閉(bi)(bi);3、280℃防(fang)火閥(fa)(fa)(fa)應為常(chang)開(kai),又叫高(gao)溫防(fang)火閥(fa)(fa)(fa),一般(ban)安(an)(an)裝在有高(gao)溫環境的通風(feng)(feng)(feng)管道(dao)(dao)中,當溫度(du)到(dao)(dao)達(da)280℃后易熔(rong)合(he)(he)金(jin)熔(rong)化,閥(fa)(fa)(fa)門關(guan)(guan)閉(bi)(bi),同時(shi)(shi)(shi)(shi)可以(yi)用(yong)24V電信號(hao)控制。如果(guo)說是280排(pai)煙(yan)防(fang)火閥(fa)(fa)(fa)應為常(chang)閉(bi)(bi),安(an)(an)裝在排(pai)煙(yan)管道(dao)(dao)中發生(sheng)(sheng)火災時(shi)(shi)(shi)(shi)控制中心給出電信號(hao)使其打(da)開(kai)排(pai)煙(yan),當溫度(du)到(dao)(dao)達(da)280時(shi)(shi)(shi)(shi)易熔(rong)合(he)(he)金(jin)熔(rong)化閥(fa)(fa)(fa)門關(guan)(guan)閉(bi)(bi),是一種二(er)次動(dong)作的閥(fa)(fa)(fa)門。
確保通風(feng)(feng)(feng)效果:高(gao)溫(wen)(wen)(wen)消(xiao)防(fang)(fang)排(pai)煙(yan)(yan)風(feng)(feng)(feng)機的使(shi)(shi)用介質本身溫(wen)(wen)(wen)度相對較(jiao)高(gao),且自身的運(yun)轉也(ye)是(shi)(shi)會(hui)產生(sheng)(sheng)(sheng)一定(ding)的溫(wen)(wen)(wen)度,若是(shi)(shi)將其放在(zai)(zai)(zai)密封環境(jing)(jing)中(zhong)(zhong),那么很容易就(jiu)會(hui)導致高(gao)溫(wen)(wen)(wen)現(xian)(xian)象(xiang)(xiang)(xiang)發生(sheng)(sheng)(sheng),針對于這種情(qing)況在(zai)(zai)(zai)前期(qi)選擇安裝環境(jing)(jing)時就(jiu)應該要(yao)多注意,好(hao)是(shi)(shi)能夠(gou)將其放在(zai)(zai)(zai)通風(feng)(feng)(feng)效果較(jiao)好(hao)的環境(jing)(jing)中(zhong)(zhong),通過對流運(yun)動來有效降低溫(wen)(wen)(wen)度,這是(shi)(shi)可(ke)以有效的防(fang)(fang)止高(gao)溫(wen)(wen)(wen)現(xian)(xian)象(xiang)(xiang)(xiang)的發生(sheng)(sheng)(sheng)。確保電(dian)(dian)流大(da)小合適:消(xiao)防(fang)(fang)排(pai)煙(yan)(yan)風(feng)(feng)(feng)機的使(shi)(shi)用還是(shi)(shi)要(yao)注意電(dian)(dian)流問題(ti),是(shi)(shi)應該要(yao)防(fang)(fang)止電(dian)(dian)流過大(da)現(xian)(xian)象(xiang)(xiang)(xiang)發生(sheng)(sheng)(sheng),否則會(hui)讓在(zai)(zai)(zai)運(yun)行中(zhong)(zhong)會(hui)因(yin)(yin)為電(dian)(dian)流過大(da)而(er)產生(sheng)(sheng)(sheng)較(jiao)多的電(dian)(dian)阻,而(er)這也(ye)是(shi)(shi)會(hui)導致高(gao)溫(wen)(wen)(wen)現(xian)(xian)象(xiang)(xiang)(xiang)發生(sheng)(sheng)(sheng)。因(yin)(yin)為高(gao)溫(wen)(wen)(wen)會(hui)直接影響著(zhu)消(xiao)防(fang)(fang)排(pai)煙(yan)(yan)風(feng)(feng)(feng)機的使(shi)(shi)用,因(yin)(yin)此在(zai)(zai)(zai)日(ri)常使(shi)(shi)用中(zhong)(zhong)就(jiu)應該要(yao)采取措施來有效的防(fang)(fang)止高(gao)溫(wen)(wen)(wen)現(xian)(xian)象(xiang)(xiang)(xiang)發生(sheng)(sheng)(sheng),且在(zai)(zai)(zai)高(gao)溫(wen)(wen)(wen)之后要(yao)采取措施來降溫(wen)(wen)(wen),以確保安全。
在葉輪運轉初期及所有定期檢查的時候,只要一有機會,都必須檢查葉輪是否出現裂紋、磨損、積塵等缺陷。只要有可能,都必須使葉輪保持清潔狀態,并定期用鋼絲刷刷去上面的積塵和銹皮等,因為廚房排煙管道隨著運行時間的加長,這些灰塵由于不可能均勻地附著在葉輪上,而造成葉輪平衡破壞,以至引起轉子振動。葉輪只要進行了修理,就需要對其再作動平衡。如有條件,可以使用便攜試動平衡儀在現場進行平衡。在作動平衡之前,廚房排煙管道價格必(bi)須檢(jian)查所有緊(jin)定螺栓是否上緊(jin)。因為葉輪已(yi)經(jing)在不(bu)平衡狀態下(xia)運行了一段時間,這(zhe)些(xie)螺栓可(ke)能已(yi)經(jing)松(song)動。