【電(dian)動(dong)閉門(men)器工(gong)作原理(li)】電(dian)動(dong)閉門(men)器的工(gong)作原理(li)是什么(me) 電(dian)動(dong)閉門(men)器的構成
電動閉門器工作原理
電動閉門器與消防(fang)(fang)系統聯網,平時(shi)不用電,可使(shi)防(fang)(fang)火門在0-180度范圍內(nei)任意停留、啟閉(bi)。火災時(shi)受控釋放(fang)(DC24v)儲能(neng)(neng)機構,產生(sheng)力(li)矩,自(zi)行(xing)關(guan)閉(bi)門扇(shan),并(bing)自(zi)行(xing)恢復(0.1S)不通電狀態,給(gei)出(chu)反饋信號。釋放(fang)后尚(shang)未(wei)復位情況下,又(you)能(neng)(neng)實現不定位閉(bi)門器作(zuo)用,使(shi)防(fang)(fang)火門成為活動(dong)式防(fang)(fang)火門。警報(bao)解除后需手(shou)動(dong)復位,復位后又(you)可使(shi)門保持常開。
電動閉門器的構成
電動(dong)(dong)閉(bi)門(men)器由電動(dong)(dong)閉(bi)門(men)器主體和導向槽組成。主體安(an)裝(zhuang)于門(men)框導向槽安(an)裝(zhuang)于門(men)扇(如圖所(suo)示(shi) )電動(dong)(dong)閉(bi)門(men)器主要(yao)由外殼、彈(dan)簧(huang)、棘(ji)輪、電磁(ci)鐵、轉臂、導軌等(deng)組成,結(jie)構比較復(fu)雜,零部件超過60多種,如果(guo)連(lian)桿、撥片等(deng)剛(gang)性無(wu)法保(bao)證,剛(gang)容易變(bian)形或卡阻甚至散(san)架。
電動閉門器的參數
產品(pin)尺寸:290×50×68 mm (定做門框(kuang)尺寸55 mm)
關閉力矩:30 牛米 (適用于門寬0.8 m以下)
工作電壓(ya):DC24V (送電關門(men)) 工作電流:0.75A
動(dong)作反饋:輸出常開(kai)/常閉(bi)觸(chu)點信號(hao)。
電動閉門器的安裝使用
電(dian)(dian)(dian)動(dong)閉門(men)器(qi)與液壓式(shi)防火閉門(men)器(qi)有所不同,它將電(dian)(dian)(dian)磁(ci)釋(shi)(shi)放器(qi)和不定位閉門(men)器(qi)的(de)功能合二為一。其內部(bu)為電(dian)(dian)(dian)磁(ci)閥(fa)和強力彈(dan)(dan)簧(huang)(huang),推門(men)時壓縮(suo)彈(dan)(dan)簧(huang)(huang)并由(you)電(dian)(dian)(dian)磁(ci)閥(fa)鎖止(zhi),使(shi)門(men)保持常開常狀(zhuang)態(tai),得送(song)電(dian)(dian)(dian)時電(dian)(dian)(dian)磁(ci)閥(fa)釋(shi)(shi)放靠彈(dan)(dan)簧(huang)(huang)的(de)反(fan)彈(dan)(dan)沖擊力關閉,沒有緩沖功能。最早(zao)應(ying)用(yong)于(yu)常開式(shi)防火門(men),后來(lai)由(you)于(yu)消防部(bu)門(men)認為送(song)電(dian)(dian)(dian)關門(men)不符合防火規范而沒有在(zai)防火門(men)市場上推廣應(ying)用(yong),目前防火門(men)市場上仍使(shi)用(yong)液壓式(shi)自(zi)動(dong)閉門(men)器(qi)。
安(an)裝(zhuang)電動閉(bi)門(men)(men)(men)(men)器的(de)防(fang)火門(men)(men)(men)(men)門(men)(men)(men)(men)框(kuang)需特制定做,門(men)(men)(men)(men)框(kuang)橫(heng)梁(liang)要(yao)(yao)加寬,橫(heng)梁(liang)上(shang)須有55mm的(de)安(an)裝(zhuang)空(kong)間,門(men)(men)(men)(men)框(kuang)門(men)(men)(men)(men)扇(shan)內設加強(qiang)板,對安(an)裝(zhuang)位置尺(chi)寸要(yao)(yao)求嚴格(ge)。電動閉(bi)門(men)(men)(men)(men)器分(fen)左(zuo)、右開二種規格(ge)。
電動閉門器的供(gong)電(dian):按《供(gong)配(pei)(pei)電(dian)系統設計(ji)規范》GB 50052 的有關規定:消防供(gong)電(dian)回路必須是獨立的,采用(yong)阻(zu)燃或耐火(huo)電(dian)纜,應(ying)(ying)穿(chuan)金屬管(guan)或封閉式金屬線(xian)槽,并(bing)應(ying)(ying)采取外部防火(huo)保護(hu)措(cuo)施,其配(pei)(pei)電(dian)線(xian)路的最末一級配(pei)(pei)電(dian)箱(xiang)處設置(zhi)自動切換裝置(zhi)。防火(huo)門遍布建(jian)筑物的每(mei)個角落,走線(xian)回線(xian)多(duo)而長,所以如(ru)果采用(yong)消防供(gong)電(dian)回路,則布線(xian)成本極其昂貴。