【正文】 .........................................................11 自然狀況 ............................................................................................11 經(jīng)濟(jì)發(fā)展?fàn)顩r ................................................................................... 12 環(huán)境概況 ........................................................................................... 13 交通狀況 ........................................................................................... 13 城市燃?xì)猬F(xiàn)狀概況 ........................................................................... 14 3 天然氣市場(chǎng)需求預(yù)測(cè) .................................................................................. 16 供氣原則 ........................................................................................... 16 供氣范圍 ........................................................................................... 16 氣化人口和氣化率 ........................................................................... 16 各類用戶用氣指標(biāo)確定 ................................................................... 17 供氣規(guī)模及氣量平衡 ....................................................................... 20 4 氣源規(guī)劃 ..................................................................................................... 24 東豐縣 天然氣綜合利用項(xiàng)目 可行性研究報(bào)告 中交煤氣熱力研究設(shè)計(jì)院有限公司 2 氣源概況 ........................................................................................... 24 供氣參數(shù) ........................................................................................... 25 CNG 氣源 .......................................................................................... 25 LNG 氣源 ........................................................................................... 26 儲(chǔ)氣調(diào)峰量 ....................................................................................... 27 儲(chǔ)氣調(diào)峰方式 ................................................................................... 27 5 場(chǎng)站工程 ..................................................................................................... 28 場(chǎng)站工程內(nèi)容 ................................................................................... 28 總圖 ................................................................................................... 28 工藝設(shè)計(jì) ........................................................................................... 31 公用工程 ........................................................................................... 47 6 CNG 汽車加氣子站工程 .............................................................................. 58 站址選擇 ........................................................................................... 58 加氣站工藝設(shè)計(jì) ............................................................................... 58 總圖及占地 ....................................................................................... 67 豎向設(shè)計(jì) ........................................................................................... 68 交通及道路 ....................................................................................... 68 7 城區(qū)燃?xì)廨斉涔芫W(wǎng) ...................................................................................... 69 概述 ................................................................................................... 69 中壓輸配系統(tǒng)壓力級(jí)制確定 ............................................................ 69 中壓管道布置原則 ........................................................................... 71 城區(qū)中壓管網(wǎng)布置 ........................................................................... 71 中壓管道管材選擇及敷設(shè) ................................................................ 72 東豐縣 天然氣綜合利用項(xiàng)目 可行性研究報(bào)告 中交煤氣熱力研究設(shè)計(jì)院有限公司 3 管網(wǎng)水力計(jì)算 ................................................................................... 74 附屬設(shè)施 ........................................................................................... 76 中低壓調(diào)壓 ....................................................................................... 76 穿跨越工程 ....................................................................................... 79 8 輸氣管道工程 .............................................................................................. 80 概述 ................................................................................................... 80 輸氣管道選線原則 ........................................................................... 80 工藝計(jì)算 ........................................................................................... 81 輸氣管 道管材選擇 ........................................................................... 82 輸氣管道敷設(shè) ................................................................................... 82 管道外防腐 ....................................................................................... 83 陰極保護(hù) ........................................................................................... 84 管道防護(hù) ........................................................................................... 86 管道抗震設(shè)計(jì) ................................................................................... 86 輸氣管道附屬設(shè)施 ......................................................................... 86 管道焊接與試壓 ............................................................................. 87 輸氣管道安全性分析 ..................................................................... 88 9 自控系統(tǒng)及通訊系統(tǒng) .................................................................................. 90 自控系統(tǒng) ........................................................................................... 90 SCADA 系統(tǒng)設(shè)計(jì)原則 ...................................................................... 91 自控系統(tǒng)結(jié)構(gòu) ................................................................................... 92 系統(tǒng)構(gòu) 成及功能 ............................................................................... 93 通訊系統(tǒng) ................................................................................