排煙系統是重要的火災救災設備系統。其可靠性是非常值得重視的。因而針對排煙風機的(de)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi),有很多(duo)的(de)要(yao)(yao)求。在自(zi)動(dong)(dong)(dong)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)、就地手動(dong)(dong)(dong)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)的(de)基礎上(shang)還要(yao)(yao)求可(ke)在消防控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)室遠程手動(dong)(dong)(dong)應急控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)。有時還有提出(chu)常閉排煙(yan)(yan)口手動(dong)(dong)(dong)打開時硬線聯動(dong)(dong)(dong)排煙(yan)(yan)風機直接啟動(dong)(dong)(dong)的(de)要(yao)(yao)求。同時相關規范(fan)不僅對排煙(yan)(yan)風機提出(chu)各種(zhong)啟動(dong)(dong)(dong)的(de)要(yao)(yao)求,也提及(ji)了停止(zhi)(zhi)的(de)要(yao)(yao)求,包括應急控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)的(de)遠程硬線控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)停止(zhi)(zhi)要(yao)(yao)求。從最簡單(dan)(dan)的(de)手動(dong)(dong)(dong)啟停控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi),到自(zi)動(dong)(dong)(dong)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi),再到單(dan)(dan)點(dian)或多(duo)點(dian)聯動(dong)(dong)(dong)、聯鎖自(zi)動(dong)(dong)(dong)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi),平行或順序(xu)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)層次(ci)的(de)增加(jia),改變(bian)著(zhu)二次(ci)控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)電(dian)路(lu)的(de)繁簡程度,這對可(ke)靠性也存(cun)在一定影響。
在實(shi)際工程中,關(guan)于硬(ying)線(xian)控制(zhi)的(de)要求,也(ye)出現(xian)了(le)一(yi)些討論。即(ji)硬(ying)線(xian)控制(zhi)應(ying)該覆蓋(gai)多大范(fan)圍?是硬(ying)線(xian)控制(zhi)越多越可靠嗎?
控(kong)制(zhi)功能的(de)可靠(kao)(kao)實現,首先有賴于主工(gong)(gong)藝(yi)的(de)控(kong)制(zhi)簡化及(ji)可靠(kao)(kao)性設(she)計。其次,控(kong)制(zhi)方(fang)式及(ji)適用范圍,應從可靠(kao)(kao)性角度出(chu)(chu)發,研究(jiu)設(she)備運行(xing)特點(dian)和工(gong)(gong)藝(yi)目標,本著簡化、優化的(de)原(yuan)則做出(chu)(chu)選擇。
同時(shi),不同控制方(fang)(fang)式(shi)之間(jian)盡量采用(yong)并行方(fang)(fang)式(shi),避(bi)免相(xiang)互(hu)影響(xiang);盡量避(bi)免局部交叉串聯的設計。
硬線控(kong)制的(de)使用(yong)范(fan)圍(wei)應(ying)適(shi)當(dang)控(kong)制。對于(yu)較為(wei)復雜的(de)控(kong)制系(xi)(xi)統(tong)(tong),應(ying)更為(wei)重視在自(zi)動(dong)控(kong)制系(xi)(xi)統(tong)(tong)設備、元(yuan)件、網絡的(de)采(cai)購、施工、調(diao)試(shi)、維護等方面采(cai)取有(you)效措施,保證自(zi)動(dong)控(kong)制系(xi)(xi)統(tong)(tong)可(ke)靠性(xing)。因為(wei)自(zi)動(dong)控(kong)制系(xi)(xi)統(tong)(tong)的(de)可(ke)靠性(xing)是(shi)(shi)具(ju)有(you)全局性(xing)影響的(de),甚至是(shi)(shi)不容有(you)失的(de)。
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凱(kai)億網宣辦:紀 2022.12.7 報(bao)價(jia)電話:15806889279
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