消防(fang)(fang)(fang)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)是為了阻(zu)止火(huo)(huo)(huo)災時(shi)火(huo)(huo)(huo)勢和有(you)(you)毒高溫(wen)煙(yan)(yan)氣通過風(feng)管(guan)蔓(man)延擴(kuo)大,在(zai)通風(feng)、空調系統(tong)(tong)的(de)風(feng)管(guan)上(shang)需設(she)有(you)(you)消防(fang)(fang)(fang)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)(fa)(fa)(fa)(fa)
消防(fang)(fang)(fang)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)(fa)(fa)(fa)(fa)按其功(gong)(gong)(gong)能可分為:防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)(fa)(fa)(fa)(fa)、排(pai)煙(yan)(yan)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)(fa)(fa)(fa)(fa)、排(pai)煙(yan)(yan)閥(fa)(fa)(fa)(fa)(fa)
防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)(fa)(fa)(fa)(fa)安裝(zhuang)在(zai)有(you)(you)防(fang)(fang)(fang)火(huo)(huo)(huo)要求的(de)通風(feng)空調系統(tong)(tong)管(guan)道(dao)(dao)上(shang)(防(fang)(fang)(fang)止火(huo)(huo)(huo)勢沿(yan)風(feng)道(dao)(dao)蔓(man)延),他的(de)功(gong)(gong)(gong)能有(you)(you):溫(wen)度(du)(du)熔斷(duan)(duan)器在(zai)70℃時(shi)熔斷(duan)(duan),閥(fa)(fa)(fa)(fa)(fa)門(men)(men)關(guan)閉,輸(shu)出閥(fa)(fa)(fa)(fa)(fa)門(men)(men)關(guan)閉信號(hao)(hao),通風(feng)空調系統(tong)(tong)風(feng)機(ji)(ji)(ji)停(ting)機(ji)(ji)(ji)。
排(pai)煙(yan)(yan)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)(fa)(fa)(fa)(fa)安裝(zhuang)在(zai)排(pai)煙(yan)(yan)、防(fang)(fang)(fang)火(huo)(huo)(huo)要求的(de)排(pai)煙(yan)(yan)系統(tong)(tong)管(guan)道(dao)(dao)上(shang)(設(she)于(yu)排(pai)煙(yan)(yan)風(feng)機(ji)(ji)(ji)吸入口處管(guan)道(dao)(dao)上(shang)),它(ta)的(de)基本(ben)功(gong)(gong)(gong)能除了具(ju)有(you)(you)排(pai)煙(yan)(yan)閥(fa)(fa)(fa)(fa)(fa)的(de)功(gong)(gong)(gong)能外還(huan)具(ju)有(you)(you)當排(pai)煙(yan)(yan)溫(wen)度(du)(du)超過280℃時(shi)熔斷(duan)(duan),使閥(fa)(fa)(fa)(fa)(fa)門(men)(men)關(guan)閉,排(pai)煙(yan)(yan)機(ji)(ji)(ji)同(tong)(tong)時(shi)停(ting)機(ji)(ji)(ji)。
排(pai)煙(yan)(yan)閥(fa)(fa)(fa)(fa)(fa)安裝(zhuang)在(zai)高層建(jian)筑(zhu)、地下建(jian)筑(zhu)排(pai)煙(yan)(yan)系統(tong)(tong)的(de)管(guan)道(dao)(dao)上(shang),它(ta)的(de)基本(ben)功(gong)(gong)(gong)能有(you)(you):感(gan)溫(wen)(煙(yan)(yan))電信號(hao)(hao)聯(lian)動(dong),排(pai)煙(yan)(yan)風(feng)機(ji)(ji)(ji)同(tong)(tong)時(shi)啟(qi)(qi)運(yun);手動(dong)使閥(fa)(fa)(fa)(fa)(fa)門(men)(men)開啟(qi)(qi),排(pai)煙(yan)(yan)風(feng)機(ji)(ji)(ji)同(tong)(tong)時(shi)啟(qi)(qi)動(dong);輸(shu)出閥(fa)(fa)(fa)(fa)(fa)門(men)(men)開啟(qi)(qi)信號(hao)(hao)。