【電動(dong)閉門器工(gong)作原理】電動(dong)閉門器的工(gong)作原理是什么 電動(dong)閉門器的構成(cheng)
電動閉門器工作原理
電動閉門器與消(xiao)防(fang)系統(tong)聯網,平(ping)時(shi)不(bu)用(yong)電(dian),可使(shi)防(fang)火(huo)門(men)在0-180度范圍內任(ren)意停留、啟閉(bi)。火(huo)災時(shi)受控(kong)釋放(fang)(DC24v)儲能機構,產(chan)生力矩,自(zi)行(xing)關閉(bi)門(men)扇(shan),并(bing)自(zi)行(xing)恢復(0.1S)不(bu)通電(dian)狀態,給(gei)出(chu)反(fan)饋信號。釋放(fang)后尚未(wei)復位情況下,又(you)能實現不(bu)定(ding)位閉(bi)門(men)器作用(yong),使(shi)防(fang)火(huo)門(men)成為活(huo)動式防(fang)火(huo)門(men)。警報(bao)解(jie)除后需手動復位,復位后又(you)可使(shi)門(men)保持(chi)常開。
電動閉門器的構成
電(dian)動(dong)閉(bi)門(men)(men)器由(you)電(dian)動(dong)閉(bi)門(men)(men)器主(zhu)(zhu)體(ti)和導(dao)(dao)向槽組成。主(zhu)(zhu)體(ti)安(an)裝(zhuang)于門(men)(men)框導(dao)(dao)向槽安(an)裝(zhuang)于門(men)(men)扇(如圖所示 )電(dian)動(dong)閉(bi)門(men)(men)器主(zhu)(zhu)要由(you)外殼(ke)、彈簧、棘輪(lun)、電(dian)磁鐵、轉(zhuan)臂、導(dao)(dao)軌等組成,結(jie)構比較復雜,零(ling)部件超(chao)過60多種(zhong),如果(guo)連桿、撥(bo)片等剛性無(wu)法保證,剛容易變形或卡阻甚至(zhi)散架。
電動閉門器的參數
產品尺寸:290×50×68 mm (定做門框尺寸55 mm)
關閉力矩:30 牛米 (適用于門(men)寬0.8 m以下)
工作電壓:DC24V (送(song)電關門) 工作電流:0.75A
動作(zuo)反饋:輸出常(chang)開/常(chang)閉觸點信號。
電動閉門器的安裝使用
電(dian)(dian)(dian)動(dong)閉(bi)門(men)(men)(men)器與液(ye)壓式(shi)防(fang)火閉(bi)門(men)(men)(men)器有所不(bu)同,它將電(dian)(dian)(dian)磁釋放(fang)器和不(bu)定位閉(bi)門(men)(men)(men)器的功能(neng)合(he)二為(wei)一(yi)。其內部為(wei)電(dian)(dian)(dian)磁閥(fa)和強力(li)彈簧(huang)(huang),推門(men)(men)(men)時(shi)壓縮彈簧(huang)(huang)并由(you)電(dian)(dian)(dian)磁閥(fa)鎖止,使(shi)門(men)(men)(men)保持常開常狀態,得送電(dian)(dian)(dian)時(shi)電(dian)(dian)(dian)磁閥(fa)釋放(fang)靠(kao)彈簧(huang)(huang)的反彈沖(chong)擊(ji)力(li)關(guan)(guan)閉(bi),沒(mei)有緩沖(chong)功能(neng)。最早應用于常開式(shi)防(fang)火門(men)(men)(men),后來由(you)于消防(fang)部門(men)(men)(men)認為(wei)送電(dian)(dian)(dian)關(guan)(guan)門(men)(men)(men)不(bu)符合(he)防(fang)火規范而沒(mei)有在防(fang)火門(men)(men)(men)市(shi)場上推廣(guang)應用,目前防(fang)火門(men)(men)(men)市(shi)場上仍使(shi)用液(ye)壓式(shi)自動(dong)閉(bi)門(men)(men)(men)器。
安裝電動閉(bi)(bi)門(men)器(qi)的防火門(men)門(men)框(kuang)(kuang)需特制定做,門(men)框(kuang)(kuang)橫(heng)梁(liang)要(yao)加寬,橫(heng)梁(liang)上須有55mm的安裝空間,門(men)框(kuang)(kuang)門(men)扇(shan)內(nei)設加強(qiang)板,對安裝位置(zhi)尺寸要(yao)求嚴格(ge)。電動閉(bi)(bi)門(men)器(qi)分左、右開(kai)二種規格(ge)。
電動閉門器的(de)(de)供(gong)電(dian)(dian):按(an)《供(gong)配電(dian)(dian)系(xi)統(tong)設計規范》GB 50052 的(de)(de)有關規定(ding):消(xiao)防(fang)供(gong)電(dian)(dian)回路(lu)必(bi)須是獨立(li)的(de)(de),采(cai)用(yong)阻燃(ran)或耐火(huo)電(dian)(dian)纜,應(ying)穿金屬(shu)管或封(feng)閉式(shi)金屬(shu)線槽,并應(ying)采(cai)取外部防(fang)火(huo)保護措施,其配電(dian)(dian)線路(lu)的(de)(de)最末一級(ji)配電(dian)(dian)箱(xiang)處設置自動切換裝置。防(fang)火(huo)門遍(bian)布(bu)建(jian)筑物的(de)(de)每個角(jiao)落,走線回線多而長,所以如果采(cai)用(yong)消(xiao)防(fang)供(gong)電(dian)(dian)回路(lu),則布(bu)線成本極其昂貴。