用(yong)管(guan)(guan)道(dao)(dao)(dao)輸(shu)送原油(you)(you)(you)(you)(you)(you)(you)、成品油(you)(you)(you)(you)(you)(you)(you)和(he)液化石油(you)(you)(you)(you)(you)(you)(you)氣的(de)(de)(de)(de)建設工(gong)程。一(yi)般包括輸(shu)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)道(dao)(dao)(dao)、輸(shu)油(you)(you)(you)(you)(you)(you)(you)站(zhan)(zhan)及輔助(zhu)設施等工(gong)程內容。輸(shu)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)道(dao)(dao)(dao)系統是(shi)各(ge)類(lei)型輸(shu)油(you)(you)(you)(you)(you)(you)(you)站(zhan)(zhan)、管(guan)(guan)道(dao)(dao)(dao)及有關設施的(de)(de)(de)(de)統稱。輸(shu)油(you)(you)(you)(you)(you)(you)(you)站(zhan)(zhan)是(shi)輸(shu)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)道(dao)(dao)(dao)工(gong)程中各(ge)類(lei)工(gong)藝(yi)站(zhan)(zhan)場(chang)(chang)的(de)(de)(de)(de)統稱。首(shou)站(zhan)(zhan)是(shi)輸(shu)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)道(dao)(dao)(dao)的(de)(de)(de)(de)起點(dian)站(zhan)(zhan)。中間站(zhan)(zhan)是(shi)在輸(shu)油(you)(you)(you)(you)(you)(you)(you)首(shou)站(zhan)(zhan)和(he)末(mo)站(zhan)(zhan)之(zhi)間設有的(de)(de)(de)(de)各(ge)類(lei)站(zhan)(zhan)場(chang)(chang)的(de)(de)(de)(de)統稱。分(fen)輸(shu)站(zhan)(zhan)是(shi)在輸(shu)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)道(dao)(dao)(dao)沿線,為(wei)分(fen)輸(shu)油(you)(you)(you)(you)(you)(you)(you)品至用(yong)戶(hu)而設置的(de)(de)(de)(de)站(zhan)(zhan)場(chang)(chang)。中間加(jia)熱站(zhan)(zhan)是(shi)在輸(shu)油(you)(you)(you)(you)(you)(you)(you)首(shou)站(zhan)(zhan)和(he)末(mo)站(zhan)(zhan)之(zhi)間以加(jia)熱設施為(wei)主的(de)(de)(de)(de)輸(shu)油(you)(you)(you)(you)(you)(you)(you)站(zhan)(zhan)。末(mo)站(zhan)(zhan)是(shi)輸(shu)油(you)(you)(you)(you)(you)(you)(you)管(guan)(guan)道(dao)(dao)(dao)的(de)(de)(de)(de)終點(dian)站(zhan)(zhan)。


(1)輸(shu)(shu)油(you)管道工程設(she)計(ji)(ji)(ji)計(ji)(ji)(ji)算輸(shu)(shu)油(you)量(liang)(liang)時,年(nian)工作天(tian)數(shu)應按350天(tian)計(ji)(ji)(ji)算。應按設(she)計(ji)(ji)(ji)委托書或設(she)計(ji)(ji)(ji)合(he)同(tong)規(gui)定(ding)的輸(shu)(shu)量(liang)(liang)(年(nian)輸(shu)(shu)量(liang)(liang)、月(yue)輸(shu)(shu)量(liang)(liang)、日輸(shu)(shu)量(liang)(liang))作為設(she)計(ji)(ji)(ji)輸(shu)(shu)量(liang)(liang)。設(she)計(ji)(ji)(ji)最小輸(shu)(shu)量(liang)(liang)應符合(he)經濟及安全(quan)輸(shu)(shu)送(song)條(tiao)件。


(2)輸(shu)(shu)(shu)油(you)管道設計宜采(cai)(cai)用密閉輸(shu)(shu)(shu)送(song)工藝(yi)。若(ruo)采(cai)(cai)用其他(ta)輸(shu)(shu)(shu)送(song)工藝(yi),應進(jin)行(xing)(xing)技術經濟論證(zheng),并(bing)說明其可行(xing)(xing)性。當(dang)管輸(shu)(shu)(shu)多種油(you)品時,宜采(cai)(cai)用順序輸(shu)(shu)(shu)送(song)工藝(yi)。若(ruo)采(cai)(cai)用專管專用輸(shu)(shu)(shu)送(song)工藝(yi),應進(jin)行(xing)(xing)技術經濟論證(zheng)。


(3)輸(shu)油管(guan)(guan)道系統(tong)輸(shu)送(song)工藝方案(an)應(ying)依據設計內壓力(li)、管(guan)(guan)道管(guan)(guan)型(xing)及鋼種等(deng)(deng)級(ji)、管(guan)(guan)徑、壁(bi)厚、輸(shu)送(song)方式、輸(shu)油站數、順序輸(shu)送(song)油品批次等(deng)(deng),以多個組合(he)方案(an)進行比選,確定最(zui)佳(jia)輸(shu)油工藝方案(an)。


(4)管輸(shu)(shu)原油質量(liang)應符(fu)(fu)合(he)(he)國家現行(xing)標(biao)準SY/T 7513的規定(ding);管輸(shu)(shu)液態液化石油氣的質量(liang)應符(fu)(fu)合(he)(he)現行(xing)國家標(biao)準GB 9052.1或GB11174的規定(ding);管輸(shu)(shu)其(qi)他成品油質量(liang)應符(fu)(fu)合(he)(he)國家現行(xing)產品標(biao)準。


(5)輸(shu)油管道系統輸(shu)送(song)工藝總流程(cheng)圖應標注首(shou)站(zhan)、中間站(zhan)、末站(zhan)的(de)輸(shu)油量,進出站(zhan)壓(ya)力及油溫等主要工藝參數。并(bing)注明(ming)線路(lu)截斷閥、大型穿跨越、各站(zhan)間及里程(cheng)、高程(cheng)(注明(ming)是否有(you)翻越點)。


(6)輸油管道系統輸送(song)工藝設計應包括水(shui)力和(he)熱力計算,并進行穩態(tai)和(he)瞬態(tai)水(shui)力分析(xi),提出輸油管道在密(mi)閉輸送(song)中瞬變流動過程(cheng)的(de)控(kong)制(zhi)方法。


(7)輸油管(guan)道的(de)(de)設計應符合現行國家標準GB50253的(de)(de)規定(ding),其穿(chuan)跨越工程(cheng)設計應符合國家現行標準 SY/T 0015.1 SY/T 0015.2的(de)(de)有關(guan)規定(ding)。


(8)原油(you)管道、成品油(you)管道和液態液化(hua)石油(you)氣(LPG)管道系(xi)統(tong)輸(shu)送工藝的計(ji)算(suan)(suan)及成品.油(you)順序輸(shu)送混油(you)段長(chang)度計(ji)算(suan)(suan)應按現(xian)行(xing)國家標準GB 50253有(you)關規定計(ji)算(suan)(suan)。埋地的原油輸送管道(dao)的沿線溫(wen)降應(ying)按現行國(guo)家標準GB 50253有關規定計算。


(9)原油管道輸送要求:


      根據被輸(shu)送原油的物(wu)理化學(xue)性質及其流變性,通過優化比(bi)選,選擇最佳輸(shu)送方式;


      加熱輸送(song)的(de)埋地(di)原油管(guan)(guan)道,優選加熱溫度;管(guan)(guan)道是否需(xu)保溫,進行管(guan)(guan)道保溫與(yu)不保溫的(de)技(ji)術經濟比較,確(que)定(ding)合理方案(an)。


(10)成品(pin)油(you)管道輸送要求(qiu):


      按設(she)計(ji)委托書或設(she)計(ji)合同規定的成(cheng)品油輸(shu)量、品種與各(ge)品種的比例,以及分輸(shu)、輸(shu)入(ru)數量,進行成(cheng)品油管道(dao)系統輸(shu)送工藝設(she)計(ji);


      輸(shu)送多品種成品油(you)(you)時,宜采用單管順序(xu)輸(shu)送。油(you)(you)品批量輸(shu)送的排(pai)列順序(xu),將(jiang)油(you)(you)品性(xing)質相近(jin)的緊鄰排(pai)列;


      成(cheng)品油(you)順(shun)序輸送管道(dao),在輸油(you)站(zhan)間不宜設置副管;


      在(zai)順序輸送高黏(nian)度成品油(如重(zhong)油)時宜使用隔離裝置;


      多(duo)品(pin)種成品(pin)油順序輸(shu)(shu)送(song)管(guan)道,采用連續輸(shu)(shu)送(song)方式;當采用間歇輸(shu)(shu)送(song)時,應采取措施(shi)以減少混(hun)油量;


      采用旁接油罐輸送工藝,當(dang)多種油品順序輸送混(hun)油界面通(tong)過(guo)泵站時,應切換成(cheng)泵到泵輸送工藝;


      根據油罐區(qu)的(de)建設和營運費用與混油貶值(zhi)造成的(de)費用損失兩個方面進行綜合(he)比較后,確定(ding)最佳循環次數。


(11)液態液化石(shi)油氣(LPG)管道輸(shu)送要(yao)求:


      按(an)設(she)計委托書或設(she)計合同規(gui)定的液(ye)態液(ye)化石油(you)氣(qi)輸(shu)(shu)量、組分(fen)與各(ge)組分(fen)的比例(li),進行液(ye)態液(ye)化石油(you)氣(qi)管道(dao)系(xi)統(tong)輸(shu)(shu)送工(gong)藝(yi)設(she)計;


      液(ye)態(tai)液(ye)化石(shi)油(you)(you)氣在(zai)管道中輸送(song)時,沿線任何(he)一點(dian)的壓(ya)(ya)力都必須(xu)高于輸送(song)溫(wen)度下液(ye)化石(shi)油(you)(you)氣的飽(bao)(bao)和蒸氣壓(ya)(ya)。沿線各中間站(zhan)的進(jin)站(zhan)壓(ya)(ya)力應比同(tong)(tong)溫(wen)度下液(ye)化石(shi)油(you)(you)氣的飽(bao)(bao)和蒸氣壓(ya)(ya)力高1.0MPa,末站(zhan)進(jin)儲(chu)罐(guan)前的壓(ya)(ya)力應比同(tong)(tong)溫(wen)度下液(ye)化石(shi)油(you)(you)氣的飽(bao)(bao)和蒸氣壓(ya)(ya)力高0.5MPa。


      液態液化(hua)石油(you)氣在(zai)管(guan)道內(nei)(nei)的平(ping)均(jun)流速,應經技術(shu)經濟(ji)比較后(hou)確定,但要注意因管(guan)內(nei)(nei)摩阻升溫而需另(ling)行冷卻的能(neng)耗,可取0.8~1.4m/s,但最大(da)不應超(chao)過3m/s。






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