【正文】 ................................................................................4 設(shè)立安全評價內(nèi)容 .............................................................................................................................4 設(shè)立安全評價程序 .............................................................................................................................42 建設(shè)項(xiàng)目概況 ...............................................................................................6 建設(shè)單位簡介 ............................................................................................................6 建設(shè)工程概況 ............................................................................................................6第 2 章 評價單元的劃分及評價方法的選用 .....................................................10 評價單元劃分的原則和方法 ..........................................................................................................10 單元的劃分 ......................................................................................................................................11 評價單元簡介 ..................................................................................................................................11 輸氣管道單元 .......................................................................................................11 輸氣站場及截?cái)嚅y室單元 ...................................................................................13 總體布局單元 .......................................................................................................15 自動控制系統(tǒng)及通訊系統(tǒng)單元 ...........................................................................17 電氣單元 ...............................................................................................................19 公用設(shè)施單元 ......................................................................................................20 工業(yè)衛(wèi)生單元 .......................................................................................................21 施工單元 ...............................................................................................................21 評價方法簡介 ..................................................................................................................................212．4．1 預(yù)先危險(xiǎn)性分析法（PHA） ............................................................................22 事故樹法 ..............................................................................................................23 道化學(xué)火災(zāi)爆炸指數(shù)評價法（第七版） ..........................................................26 安全檢查表法(SCL) .............................................................................................28 各單元評價方法的選用 ..................................................................................................................28Xx 市中燃城市燃?xì)獍l(fā)展有限公司天然氣管道工程安全預(yù)評價報(bào)告—目 錄第 3 章 危險(xiǎn)、有害因素分析 ...........................................................................30 主要危險(xiǎn)物質(zhì) ....................................................................................................................................30 天然氣的危險(xiǎn)特性 .................................................................................................30 天然氣泄漏 ............................................................................................................32 主要危險(xiǎn)、有害因素 .......................................................................................................................32 火災(zāi)、爆炸 ............................................................................................................32 窒息 ......................................................................................................................34 爆管事故 ..............................................................................................................34 觸電 ......................................................................................................................35 起重傷害與坍塌 ..................................................................................................35 噪聲 ......................................................................................................................35 自然危害因素分析 ............................................................................................36 主要危險(xiǎn)、有害因素分布 ...............................................................................................................37 事故案例分析 ...................................................................................................................................37 重大危險(xiǎn)源辨識 ...............................................................................................................................39第 4 章 定性定量評價 ....................................................................................40 輸氣管道單元 ....................................................................................................................................40 預(yù)先危險(xiǎn)性分析法評價 ......................................................................................40 管道破裂（穿孔）事故樹分析 ...........................................................................43 道化學(xué)火災(zāi)、爆炸指數(shù)法評價 ..........................................................................47 輸氣站場及截?cái)嚅y室單元 ................................................................................................................50 預(yù)先危險(xiǎn)性分析 .............................................................................................................................50 站場裝置火災(zāi)爆炸事故樹分析 ....................................................................................................53 總體布局單元 ....................................................................................................................................56 自動控制系統(tǒng)單元 ............................................................................................................................58 電氣單元 .....................................................................................................................................