【正文】 ..........................................................................................................10 黏溫方程 ...............................................................................................................10 總傳熱系數(shù) K .......................................................................................................10 摩阻計(jì)算 .............................................................................................................. 11 最優(yōu)管徑的選擇 .................................................................................................... 11 工藝計(jì)算說明 ................................................................................................................. 11 概述 ..................................................................................................................... 11 確定加熱站及泵站數(shù) ......................................................................................................12 熱力計(jì)算 ..............................................................................................................12 水力計(jì)算 ..............................................................................................................13 站址確定 ..............................................................................................................14 校核計(jì)算說明 .................................................................................................................15 熱力、水力校核 ....................................................................................................15 進(jìn)出站溫度校核 ....................................................................................................15 進(jìn)出站壓力校核 ....................................................................................................15 壓力越站校核 .......................................................................................................15 熱力越站校核 .......................................................................................................16 動(dòng)、靜水壓力校核 ................................................................................................16 反輸運(yùn)行參數(shù)的確定 .............................................................................................16 站內(nèi)工藝流程的設(shè)計(jì) ......................................................................................................16 制定和規(guī)劃工藝流程 ..............................................................................................17 輸油站工藝流程 .....................................................................................................17 流程簡(jiǎn)介 ...............................................................................................................17 主要設(shè)備的選擇 .............................................................................................................18 輸油泵的選擇 選泵原則 ........................................................................................18 加熱爐的選擇 .......................................................................................................18 首末站罐容的選擇 ................................................................................................19 閥門 .....................................................................................................................19 第 3 章 工藝設(shè)計(jì)計(jì)算書 ..............................................................................................................20 經(jīng)濟(jì)管徑 .........................................................................................................................20 經(jīng)濟(jì)流速 ..............................................................................................................20 確定管道承壓 .......................................................................................................21 熱力計(jì)算與確定熱站數(shù) ...................................................................................................21 確定計(jì)算用各參數(shù) ................................................................................................21 確定流態(tài) ..............................................................................................................21 總傳熱系數(shù)的確定 .................................................................................................23 最小輸量下確定熱站數(shù) .........................................................................................23 水力計(jì)算與確定泵站數(shù) ...................................................................................................26 迭代算出站油溫 .....................................................................................................26 判斷翻越點(diǎn) ...........................................................................................................26 選泵確定泵站數(shù) .....................................................................................................26 確定站址 ..............................................................................................................27 不同輸量下的布站方案 ...................................................................................................28 最小輸量時(shí)布站方案 .............................................................................................28 最大輸量時(shí)布站方案 .............................................................................................28 各站運(yùn)行參數(shù) .................................................................................................................29 輸量最大時(shí)參數(shù) ................................