【正文】 d, the water vapor into a liquid or solid form. Liquid water will accelerate corrosion of the equipment, reduce the transmission efficiency。 equipment design 500萬(wàn)方 /年天然氣脫水裝 置的工藝設(shè)計(jì) I 目錄 1 緒 論 ................................................................................................................................... 1 設(shè)計(jì)的選題意義 ...................................................................................................... 1 國(guó)內(nèi)外研究現(xiàn)狀及發(fā)展趨勢(shì) .................................................................................. 2 設(shè)計(jì)內(nèi)容 .................................................................................................................. 3 方案選取 .................................................................................................................. 4 設(shè)計(jì)重點(diǎn) .................................................................................................................. 7 脫水主要單體設(shè)備設(shè)計(jì) ............................................................................... 7 確定脫水裝置運(yùn)行主要參數(shù) ....................................................................... 8 2 基礎(chǔ)數(shù)據(jù)計(jì)算 ................................................................................................................... 9 建設(shè)規(guī)模 .................................................................................................................. 9 甘醇用量 .................................................................................................................. 9 物料衡算 .................................................................................................................. 9 貧甘醇濃度的確定 ........................................................................................ 9 脫水量 .......................................................................................................... 10 三甘醇貧液循環(huán)量 ......................................................................................11 三甘醇富液循環(huán)量 ..................................................................................... 12 設(shè)備計(jì)算 ................................................................................................................ 12 吸收塔工藝參數(shù)計(jì)算 .................................................................................. 12 吸收塔塔板數(shù)的確定 ........................................................................ 12 吸收塔直徑的計(jì)算 ............................................................................ 12 泡罩塔板設(shè)計(jì) ..................................................................................... 14 吸收塔壁厚計(jì)算 ................................................................................ 17 塔頂空間高度 HD ............................................................................. 18 塔板間距 HT ...................................................................................... 18 塔底空間高度 HB.............................................................................. 18 吸收塔高度 ........................................................................................ 19 再生塔 ......................................................................................................... 19 精餾柱 ............................................................................................... 19 重沸器 ............................................................................................... 19 重沸器火管的計(jì)算 ........................................................................... 20 西南石油大學(xué)本科畢業(yè)設(shè)計(jì) II 循環(huán)泵 ......................................................................................................... 21 閃蒸罐 ......................................................................................................... 21 貧 /富甘醇換熱器 ......................................................................................... 22 熱量衡算 ................................................................................................................ 22 重沸器 .......................................................................................................... 22 貧 /富甘醇換熱器 ......................................................................................... 23 3 脫水裝置選型 ................................................................................................................. 24 主要工藝設(shè)備 ....................................................................................................... 24 4 節(jié)能措施 ......................................................................................................................... 29 5 環(huán)境保護(hù) ......................................................................................................................... 30 主要污染源和污染物 ........................................................................................... 30 污染控制 ................................................................................................................ 30 心得體會(huì) ............................................................................................................................. 32 謝辭 ..................................................................................................................................... 33 參考文獻(xiàn) ............................................................................................................................. 34 500萬(wàn)方 /年天然氣脫水裝置的工藝設(shè)計(jì) 1 1 緒論 隨著世界經(jīng)濟(jì)迅 速發(fā)展，人口急劇增加，能源消費(fèi)不斷增長(zhǎng)，溫室氣體和各種有害物質(zhì)排放激增，人類生存環(huán)境受到極大挑戰(zhàn)。 初步測(cè)算，全球天然氣可采儲(chǔ)量約為 137億噸石油當(dāng)量，與石油基本相當(dāng)。在全球范圍內(nèi)，天然氣取代石油的步伐加快，尤其是在東北亞、南亞、東南亞和南美地區(qū)，隨著其輸送管網(wǎng)的建設(shè)，天然氣在 21世紀(jì)初期將會(huì)有更快的發(fā)展。水蒸汽可能是天然氣中最令人討厭的雜質(zhì)。 為避免出現(xiàn)這些問(wèn)題，在天然氣進(jìn)入輸氣管網(wǎng)之前，必須除掉其中的部份水蒸 西南石油大學(xué)本科畢業(yè)設(shè)計(jì) 2 氣。 天然氣脫水的幾種主要方法： ( 1) 低溫冷凝脫水 該方法采用各種方法把高壓天然氣節(jié)流降壓致冷 , 用低溫分離法從天然氣中回收凝析液。對(duì)于高壓天然氣 ,冷卻脫水是非常經(jīng)濟(jì)的。這種脫水系統(tǒng)包括分離器、吸收塔和三甘醇再生系統(tǒng)。雖然性能很好 ,但是也存在很多問(wèn)題。 ( 4) 分子篩脫水 [2] 分子篩脫水屬于固體吸附法脫水，脫水系統(tǒng)主