南岸高品質廚房排煙管道價格

1、70℃防火閥用在空調送風、通風系統管道上；平時常開，發生火災時關閉，聯鎖風機，使風機關閉；2、280℃防火閥用在排煙系統管道上，平時常開，發生火災時排煙，當煙氣溫度達到280度時，防火閥關閉，聯鎖風機關閉；3、280℃防火閥應為常開，又叫高溫防火閥，一般高品質廚房排煙管道安裝在有高溫環境的通風管道中，當溫度到達280℃后易熔合金熔化，閥門關閉，同時可以用24V電信號控制。如果說是280排煙防火閥應為常閉，廚房排煙管道安裝(zhuang)在排(pai)煙(yan)管(guan)道中發生(sheng)火災時(shi)控制中心給出電信號使其打開排(pai)煙(yan)，當溫度到達280時(shi)易熔(rong)合金熔(rong)化閥(fa)門關閉(bi)，是一種二次動作的閥(fa)門。

防(fang)(fang)火(huo)(huo)(huo)(huo)閥是用來阻斷來自火(huo)(huo)(huo)(huo)災(zai)(zai)區的(de)(de)煙氣及(ji)(ji)火(huo)(huo)(huo)(huo)焰通過(guo)，并在(zai)一(yi)定時(shi)間內(nei)能滿(man)足耐火(huo)(huo)(huo)(huo)穩定性和(he)耐火(huo)(huo)(huo)(huo)完整性要(yao)求的(de)(de)閥門。為了將(jiang)火(huo)(huo)(huo)(huo)災(zai)(zai)引(yin)起的(de)(de)損失減少到小(xiao)程度，就必須采取有效的(de)(de)防(fang)(fang)火(huo)(huo)(huo)(huo)、防(fang)(fang)排煙措施，以控(kong)制火(huo)(huo)(huo)(huo)勢蔓延，而防(fang)(fang)火(huo)(huo)(huo)(huo)閥在(zai)通風(feng)、空調及(ji)(ji)防(fang)(fang)排煙系統中的(de)(de)合(he)(he)理(li)設置，則起到了重(zhong)要(yao)的(de)(de)作用。防(fang)(fang)火(huo)(huo)(huo)(huo)閥的(de)(de)結構(gou)(gou)和(he)工作原理(li),防(fang)(fang)火(huo)(huo)(huo)(huo)閥主要(yao)由(you)閥體(ti)(ti)和(he)執(zhi)行(xing)機(ji)構(gou)(gou)組成(cheng)。閥體(ti)(ti)由(you)殼體(ti)(ti)、法蘭、葉(xie)片(pian)及(ji)(ji)葉(xie)片(pian)聯動機(ji)構(gou)(gou)等(deng)組成(cheng)。執(zhi)行(xing)機(ji)構(gou)(gou)由(you)外殼、葉(xie)片(pian)調節機(ji)構(gou)(gou)、離合(he)(he)器(qi)、溫(wen)度熔(rong)斷器(qi)等(deng)組成(cheng)。防(fang)(fang)火(huo)(huo)(huo)(huo)閥的(de)(de)執(zhi)行(xing)機(ji)構(gou)(gou)是通過(guo)金屬易熔(rong)片(pian)和(he)離合(he)(he)器(qi)機(ji)構(gou)(gou)來控(kong)制葉(xie)片(pian)的(de)(de)轉(zhuan)動。

鑒于軸流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)有紊流(liu)區(qu)的(de)(de)性能特點(dian)，在選型和使(shi)用(yong)時(shi)，需要注意以(yi)下(xia)兩點(dian)：建議使(shi)用(yong)在空曠環境中(zhong),軸流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)的(de)(de)輸入功(gong)率隨(sui)系(xi)統靜(jing)壓的(de)(de)增(zeng)大(da)而增(zeng)大(da)，而在紊流(liu)區(qu)，輸入功(gong)率的(de)(de)增(zeng)大(da)幅度會(hui)更大(da)。因此，軸流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)一般多應用(yong)在有較(jiao)大(da)空曠環境的(de)(de)場合下(xia)，可以(yi)使(shi)其(qi)工(gong)作在靜(jing)壓較(jiao)低的(de)(de)環境下(xia)，降低功(gong)耗(hao)，保(bao)證(zheng)穩定性和壽命。定期(qi)清(qing)理風(feng)(feng)(feng)(feng)(feng)道(dao),當(dang)軸流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)應用(yong)在較(jiao)為封(feng)閉的(de)(de)風(feng)(feng)(feng)(feng)(feng)道(dao)系(xi)統中(zhong)時(shi)，長期(qi)運行(xing)后風(feng)(feng)(feng)(feng)(feng)道(dao)中(zhong)的(de)(de)積灰、垃圾逐(zhu)漸變多，會(hui)使(shi)風(feng)(feng)(feng)(feng)(feng)道(dao)內的(de)(de)靜(jing)壓逐(zhu)漸增(zeng)加，使(shi)得(de)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)的(de)(de)運行(xing)工(gong)況點(dian)逐(zhu)漸左移。這不僅(jin)會(hui)降低風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)性能，更重(zhong)要的(de)(de)是(shi)會(hui)增(zeng)加軸流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)進入紊流(liu)區(qu)的(de)(de)風(feng)(feng)(feng)(feng)(feng)險。因此必須(xu)要定期(qi)清(qing)理風(feng)(feng)(feng)(feng)(feng)道(dao)，保(bao)證(zheng)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)工(gong)況點(dian)不產生較(jiao)大(da)偏(pian)移。

1、消(xiao)(xiao)聲(sheng)(sheng)(sheng)性(xing)(xing)能：鍍(du)(du)鋅(xin)薄(bo)鋼(gang)(gang)板(ban)(ban)風(feng)管(guan)(guan)：無消(xiao)(xiao)聲(sheng)(sheng)(sheng)性(xing)(xing)能，自身(shen)震(zhen)動會(hui)產生(sheng)聲(sheng)(sheng)(sheng)音，必(bi)須(xu)(xu)加裝(zhuang)消(xiao)(xiao)聲(sheng)(sheng)(sheng)器。無機玻璃(li)鋼(gang)(gang)風(feng)管(guan)(guan)：無消(xiao)(xiao)聲(sheng)(sheng)(sheng)性(xing)(xing)能，隔聲(sheng)(sheng)(sheng)性(xing)(xing)能優于(yu)鍍(du)(du)鋅(xin)薄(bo)鋼(gang)(gang)板(ban)(ban)風(feng)管(guan)(guan)，必(bi)須(xu)(xu)加裝(zhuang)消(xiao)(xiao)聲(sheng)(sheng)(sheng)器。復合(he)玻纖板(ban)(ban)風(feng)管(guan)(guan)：其管(guan)(guan)壁是(shi)一(yi)種多孔(kong)性(xing)(xing)吸(xi)聲(sheng)(sheng)(sheng)材料，可(ke)省去專用(yong)消(xiao)(xiao)聲(sheng)(sheng)(sheng)器。纖維(wei)(wei)織(zhi)物(wu)風(feng)管(guan)(guan)：其管(guan)(guan)壁為柔(rou)性(xing)(xing)纖維(wei)(wei)織(zhi)物(wu)，本身(shen)就是(shi)聲(sheng)(sheng)(sheng)音的不良導(dao)體和(he)吸(xi)收體，自身(shen)不會(hui)產生(sheng)聲(sheng)(sheng)(sheng)音，還可(ke)以一(yi)定程度上吸(xi)收設備噪(zao)聲(sheng)(sheng)(sheng)，隨(sui)著管(guan)(guan)道的延長，效果更為明顯(xian)，可(ke)省去專用(yong)消(xiao)(xiao)聲(sheng)(sheng)(sheng)器。2、保(bao)溫(wen)(wen)(wen)性(xing)(xing)能：鍍(du)(du)鋅(xin)薄(bo)鋼(gang)(gang)板(ban)(ban)風(feng)管(guan)(guan)：導(dao)熱(re)系數(shu)很大(為60.4 W/m?K)，無保(bao)溫(wen)(wen)(wen)性(xing)(xing)能，必(bi)須(xu)(xu)另外加包保(bao)溫(wen)(wen)(wen)層及保(bao)護層。無機玻璃(li)鋼(gang)(gang)風(feng)管(guan)(guan)：導(dao)熱(re)系數(shu)大(為0.5W/m?K)，無保(bao)溫(wen)(wen)(wen)性(xing)(xing)能。復合(he)玻纖板(ban)(ban)風(feng)管(guan)(guan)：導(dao)熱(re)系數(shu)小(xiao)(xiao)(平均溫(wen)(wen)(wen)度24℃時小(xiao)(xiao)于(yu)1W/m?K)，有一(yi)定保(bao)溫(wen)(wen)(wen)性(xing)(xing)能，不加裝(zhuang)保(bao)溫(wen)(wen)(wen)。