【正文】 本 科 畢 業(yè) 設(shè) 計（論文） 題 目： 成都 — 青島輸氣管道工程初步設(shè)計 學(xué)生姓名： 學(xué) 號： 專業(yè)班級：油氣儲運工程 095班 指導(dǎo)教師： 2021年 6 月 17日中國石油大學(xué)（華東）本科畢業(yè)設(shè)計 成都 — 青島輸氣管道工程初步設(shè)計 摘 要 本工程項目的主要內(nèi)容是成都 —— 青島輸氣管道的設(shè)計，設(shè)計要求任務(wù)輸氣量為220108m3/a，全長 1894km。 本論文主要采用計算法確定輸氣方案，計算出在不同設(shè)計壓力、管徑、壓比情況下的方案后，根據(jù)費用 現(xiàn)值法比較確定最優(yōu)方案。經(jīng)過計算比較，確定全線確定最優(yōu)方案為設(shè)計壓力 12MPa,壓力比 ，管壁外徑 1422mm,管材選用雙面螺旋埋弧焊鋼管，不用內(nèi)涂層，管壁粗糙度取 。建工藝站場 11 座（包括一座首站，一座末站），全線管路耗鋼量 ,固定資產(chǎn)投資 億元 。 本工程主要采用的試算法能夠比較好的解決此類工程項目問題，采用的費用現(xiàn)值法計算投資費用亦能很好的估算項目經(jīng)濟(jì)性，此設(shè)計對于輸氣長輸管道工程項目的建設(shè)具有很好的指導(dǎo)作用。 關(guān)鍵詞 ：長輸管道；計算法；費用現(xiàn)值 中國石油大學(xué)（華東）本科畢業(yè)設(shè)計 The design of the gas pipeline project from Chengdu to Qingdao Abstract The main work of this project is the design of the gas pipeline project from Chengdu to Qingdao . The required gas transmission capacity annually is 220108m3/a,and the distance is overall 1849km. This thesis mainly determines plans of gas transmission by adopting the trial calculation method and program to calculate plans under different design pressure and inside diameter of pipe, and try to find the best plan through Present Value Cost method. Though calculation and parison of different plans, it is determined that 11 process stations ( including a primary station, an end station ) should be built. On this case ,the design pressure is 12MPa,pressure ratio is ,and the wall diameter is overall gas transmission pipeline will consume steel of ,and needs investment of 1010 yuan. The trial calculation method adapted in this thesis can effectively solve this kind of engineering project, and Present Value Cost method can also estimate the economics of different plans. This thesis has a guiding effect on construction of project of long gas transmission pipelines. Keywords: Long gas transmission lines； trial calculation method； Present value cost 中國石油大學(xué)（華東）本科畢業(yè)設(shè)計 目 錄 第 1 章 引言 .............................................................................................................................. 1 第 2 章 設(shè)計概述 ...................................................................................................................... 2 設(shè)計依據(jù) ..................................................................................................................... 2 設(shè)計原則 .......................................................................................................... 2 管道設(shè)計規(guī)范和手冊 ...................................................................................... 2 長輸管道設(shè)計原始資料 ............................................................................................. 2 天然氣管道的工程概況 .................................................................................. 2 天然氣的組成 .................................................................................................. 2 管線設(shè)計參數(shù) .................................................................................................. 3 管線設(shè)計內(nèi)容 .................................................................................................. 3 本章小結(jié) ..................................................................................................................... 3 第 3 章 線路工程設(shè)計說明 ...................................................................................................... 4 線路選擇 ..................................................................................................................... 4 線路選擇的基本要求 ...................................................................................... 4 成都 —— 青島管線沿線自然條件狀況 .......................................................... 4 沿線地區(qū)等級劃分規(guī)定 .................................................................................. 4 管道敷設(shè) ..................................................................................................................... 5 管道的敷設(shè)方式 .............................................................................................. 5 管道的轉(zhuǎn)角 ...................................................................................................... 6 管道材質(zhì)及壁厚選擇 ...................................................................................... 6 線路輔助設(shè)施 .................................................................................................. 7 閥門與法蘭的設(shè)置 ..................................................................................................... 8 閥門選用要求 .................................................................................................. 8 閥門的種類 ...................................................................................................... 8 法蘭的選用 ...................................................................................................... 9 清管與試壓 ................................................................................................................. 9 清掃管線 .......................................................................................................... 9 輸氣管道試壓應(yīng)符合以下規(guī)定 ...................................................................... 9 中國石油大學(xué)（華東）本科畢業(yè)設(shè)計 試驗介質(zhì) .......................................................................................................... 9 試驗壓力 .......................................................................................................... 9 嚴(yán)密性試驗 ...................................................................................................... 9 本章小結(jié) ..................................................................................................................... 9 第 4 章 站場工藝流程及設(shè)備設(shè)計說明 ................................................................................ 10 輸氣管道工程站場種類及名稱 ............................................................................... 10 概述 ......................................................................................