建(jian)筑防煙(yan)排煙(yan)系統技付標準GB51251-2017

——余壓監控系統規范要求(qiu)——

當(dang)火災發生時(shi)，風(feng)機通(tong)(tong)過(guo)(guo)(guo)風(feng)管往風(feng)井加壓(ya)(ya)(ya)送(song)風(feng)（綠色(se)箭頭方向），加壓(ya)(ya)(ya)后的(de)(de)(de)(de)(de)風(feng)再分別通(tong)(tong)過(guo)(guo)(guo)每(mei)層的(de)(de)(de)(de)(de)百葉窗(chuang)或風(feng)閥(fa)(fa)送(song)往每(mei)層的(de)(de)(de)(de)(de)前(qian)(qian)室(shi)或樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)。當(dang)前(qian)(qian)室(shi)或樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)與(yu)走道(dao)的(de)(de)(de)(de)(de)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)（前(qian)(qian)室(shi)與(yu)走道(dao)的(de)(de)(de)(de)(de)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)，樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)與(yu)走道(dao)的(de)(de)(de)(de)(de)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)）超(chao)過(guo)(guo)(guo)設定(ding)值（前(qian)(qian)室(shi)30Pa,樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)50Pa)時(shi)，位(wei)于(yu)每(mei)層的(de)(de)(de)(de)(de)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)傳感器(qi)(qi)即(ji)時(shi)發出(chu)信號(hao)報(bao)警(jing)輸入(ru)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)控制(zhi)(zhi)器(qi)(qi)，余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)控制(zhi)(zhi)器(qi)(qi)根據余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)傳感器(qi)(qi)的(de)(de)(de)(de)(de)信號(hao)啟動(dong)泄(xie)(xie)壓(ya)(ya)(ya)閥(fa)(fa)執(zhi)行器(qi)(qi)打開旁(pang)通(tong)(tong)泄(xie)(xie)壓(ya)(ya)(ya)閥(fa)(fa)，旁(pang)通(tong)(tong)泄(xie)(xie)壓(ya)(ya)(ya)閥(fa)(fa)打開后，部分加壓(ya)(ya)(ya)的(de)(de)(de)(de)(de)風(feng)通(tong)(tong)過(guo)(guo)(guo)旁(pang)路風(feng)管經旁(pang)通(tong)(tong)泄(xie)(xie)壓(ya)(ya)(ya)閥(fa)(fa)回到風(feng)機前(qian)(qian)端（紅色(se)箭頭位(wei)置），從而減少送(song)往前(qian)(qian)室(shi)及樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)的(de)(de)(de)(de)(de)風(feng)量，降(jiang)低前(qian)(qian)室(shi)及樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)的(de)(de)(de)(de)(de)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)值。當(dang)前(qian)(qian)室(shi)或樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)與(yu)走道(dao)的(de)(de)(de)(de)(de)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)值降(jiang)低到設定(ding)值時(shi)（前(qian)(qian)室(shi)25Pa，樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)40Pa）旁(pang)通(tong)(tong)泄(xie)(xie)壓(ya)(ya)(ya)閥(fa)(fa)自(zi)動(dong)關(guan)閉(bi)，從而實現前(qian)(qian)室(shi)及樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)的(de)(de)(de)(de)(de)余(yu)(yu)(yu)(yu)(yu)壓(ya)(ya)(ya)自(zi)動(dong)控制(zhi)(zhi)，確保煙(yan)霧不會倒灌進入(ru)前(qian)(qian)室(shi)及樓(lou)(lou)梯(ti)間(jian)(jian)(jian)(jian)，保證疏散(san)人群的(de)(de)(de)(de)(de)**。

DLK4550余壓傳感器用于高層建筑余壓監控系統，與我司余壓控制器，余壓監控器配合使用控制旁通泄壓閥開啟角度，控制送往前室的風量，調節電梯前室與走道及樓梯間與走道之間壓差，使之符合《建筑防煙排煙技術標準》要求。
DLK4550余壓傳感器與余壓控制器，余壓監控器采用二總線通訊方式，具有地址設置，測試，置零功能，能設置自身IP地址，顯示實時的壓差值，顯示自身IP地址。
DLK4550余壓傳感器主要安裝在電梯前室，樓梯間與余壓控制器及余壓監控器配合使用。