【正文】 XX 省 XXX 市天然氣利用工程初步設(shè)計(jì) 1 第一冊(cè)：說明書 XX 省 XXX 市天然氣利用工程初步設(shè)計(jì) 2 目 錄 1 前言 ...................................................................................................................................6 2 概述 ...................................................................................................................................7 項(xiàng)目概況 .................................................................................................................7 設(shè)計(jì)依據(jù)、原則、范圍 ............................................................................................7 遵循的標(biāo)準(zhǔn)、規(guī)范 ...................................................................................................9 城市概況 ............................................................................................................... 11 工程概況 ............................................................................................................... 15 技術(shù)經(jīng)濟(jì)指標(biāo) ........................................................................................................ 16 編寫的有關(guān)說明 ..................................................................................................... 17 3 供氣 規(guī)模及氣量平衡 ........................................................................................................ 17 氣源 ...................................................................................................................... 17 耗氣定額的確定 ..................................................................................................... 19 各類用戶的不均勻系數(shù)的確定 ................................................................................ 22 用氣量計(jì)算 ............................................................................................................ 25 氣量平衡 ............................................................................................................... 30 4 城市天然氣輸配系統(tǒng)方案的確定 ....................................................................................... 43 輸配系統(tǒng)組成及工藝流程 ....................................................................................... 43 天然氣調(diào)峰措施 ..................................................................................................... 43 天然氣儲(chǔ)氣方案 ..................................................................................................... 44 供氣方式 ............................................................................................................... 46 調(diào)壓方式 ............................................................................................................... 48 壓力級(jí)制 ............................................................................................................... 49 5 LNG 氣化站 ..................................................................................................................... 51 概述 ...................................................................................................................... 51 工藝設(shè)計(jì) ............................................................................................................... 51 LNG 氣化站總圖 .................................................................................................... 58 6 門站 ................................................................................................................................. 71 XX 省 XXX 市天然氣利用工程初步設(shè)計(jì) 3 概述 ...................................................................................................................... 71 工藝設(shè)計(jì) ............................................................................................................... 72 總圖設(shè)計(jì) ............................................................................................................... 73 站內(nèi)公用工程 ........................................................................................................ 74 主要設(shè)備表 ............................................................................................................ 76 7 CNG 加氣站 ..................................................................................................................... 77 概述 ...................................................................................................................... 77 設(shè)計(jì)原則 ............................................................................................................... 77 CNG 加氣站的布置及選址 ..................................................................................... 78 公用工程設(shè)計(jì) ........................................................................................................ 81 CNG 加氣站總平面及主要設(shè)備平面布置 ................................................................ 83 8 中壓輸配系統(tǒng)設(shè)計(jì) ............................................................................................................ 84 中壓管網(wǎng)布置 ........................................................................................................ 84 管道敷設(shè)方式及安全間距 ....................................................................................... 85 管材 ...................................................................................................................... 87 鋼質(zhì)管道防腐 .......................................................................................................111 穿跨越工程設(shè)計(jì) ..................................................................................................... 91 水力計(jì)算 ............................................................................................................... 94 中壓管道附屬設(shè)施 ................................................................................................