鐵路分岔隧道典型火災(zāi)條件下射流風(fēng)機選型計算研究
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摘 要:該研究提出針對鐵路列車火災(zāi)在分岔隧道段的排煙分區(qū)劃分方法,并進行相應(yīng)的風(fēng)機匹配計算。通過PyroSim軟件進行數(shù)值模擬,對火災(zāi)在分岔位置上下游的不同位置進行相應(yīng)的煙氣通風(fēng)控制,驗證排煙分區(qū)劃分方法的可行性。研究結(jié)果對于復(fù)雜鐵路分岔隧道部位通風(fēng)排煙系統(tǒng)的設(shè)計具有實際的參考價值。
關(guān)鍵詞:分岔隧道;排煙分區(qū);煙氣控制;射流風(fēng)機;可行性
中圖分類號:U458.1 文獻標(biāo)志碼:A 文章編號:2095-2945(2024)27-0082-04
Abstract: This study proposes a smoke exhaust zoning method for railway train fires in bifurcation tunnel sections and conducts corresponding fan matching calculations. Through the numerical simulation of the PyroSim software, the corresponding smoke ventilation control is carried out at different positions of the upstream and downstream of the bifurcation position, and the feasibility of the smoke exhaust partition method is verified. The research results have practical reference value for the design of ventilation and smoke exhaust system at bifurcations of complex railway tunnels.
Keywords: bifurcation tunnel; smoke exhaust zone; smoke control; jet fan; feasibility
近年來,隨著復(fù)雜城市鐵路集群隧道的不斷增多,分岔隧道的結(jié)構(gòu)變得愈發(fā)復(fù)雜。(剩余5272字)