用(yong)管(guan)道(dao)(dao)輸(shu)(shu)(shu)(shu)(shu)送(song)原油(you)(you)(you)(you)、成品油(you)(you)(you)(you)和液化石油(you)(you)(you)(you)氣的(de)建設工程。一(yi)般包括輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)管(guan)道(dao)(dao)、輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)站(zhan)(zhan)(zhan)(zhan)及輔助設施等(deng)工程內容。輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)管(guan)道(dao)(dao)系統是(shi)(shi)各類(lei)型(xing)輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)站(zhan)(zhan)(zhan)(zhan)、管(guan)道(dao)(dao)及有關設施的(de)統稱。輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)站(zhan)(zhan)(zhan)(zhan)是(shi)(shi)輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)管(guan)道(dao)(dao)工程中各類(lei)工藝站(zhan)(zhan)(zhan)(zhan)場(chang)的(de)統稱。首(shou)(shou)站(zhan)(zhan)(zhan)(zhan)是(shi)(shi)輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)管(guan)道(dao)(dao)的(de)起點(dian)站(zhan)(zhan)(zhan)(zhan)。中間(jian)站(zhan)(zhan)(zhan)(zhan)是(shi)(shi)在輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)首(shou)(shou)站(zhan)(zhan)(zhan)(zhan)和末(mo)站(zhan)(zhan)(zhan)(zhan)之(zhi)間(jian)設有的(de)各類(lei)站(zhan)(zhan)(zhan)(zhan)場(chang)的(de)統稱。分(fen)輸(shu)(shu)(shu)(shu)(shu)站(zhan)(zhan)(zhan)(zhan)是(shi)(shi)在輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)管(guan)道(dao)(dao)沿線,為(wei)分(fen)輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)品至(zhi)用(yong)戶而(er)設置(zhi)的(de)站(zhan)(zhan)(zhan)(zhan)場(chang)。中間(jian)加熱(re)站(zhan)(zhan)(zhan)(zhan)是(shi)(shi)在輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)首(shou)(shou)站(zhan)(zhan)(zhan)(zhan)和末(mo)站(zhan)(zhan)(zhan)(zhan)之(zhi)間(jian)以加熱(re)設施為(wei)主(zhu)的(de)輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)站(zhan)(zhan)(zhan)(zhan)。末(mo)站(zhan)(zhan)(zhan)(zhan)是(shi)(shi)輸(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)(you)管(guan)道(dao)(dao)的(de)終點(dian)站(zhan)(zhan)(zhan)(zhan)。


(1)輸(shu)油管(guan)道工(gong)程設計(ji)(ji)計(ji)(ji)算輸(shu)油量(liang)(liang)(liang)時,年(nian)工(gong)作(zuo)天(tian)數應(ying)按(an)350天(tian)計(ji)(ji)算。應(ying)按(an)設計(ji)(ji)委托書或(huo)設計(ji)(ji)合(he)(he)同規定的輸(shu)量(liang)(liang)(liang)(年(nian)輸(shu)量(liang)(liang)(liang)、月輸(shu)量(liang)(liang)(liang)、日輸(shu)量(liang)(liang)(liang))作(zuo)為設計(ji)(ji)輸(shu)量(liang)(liang)(liang)。設計(ji)(ji)最小(xiao)輸(shu)量(liang)(liang)(liang)應(ying)符合(he)(he)經濟及安全(quan)輸(shu)送條(tiao)件。


(2)輸(shu)(shu)油(you)管道(dao)設計宜采(cai)(cai)用(yong)密閉輸(shu)(shu)送(song)工藝(yi)。若(ruo)采(cai)(cai)用(yong)其(qi)他(ta)輸(shu)(shu)送(song)工藝(yi),應(ying)進(jin)行技術經濟論證,并說明其(qi)可行性。當管輸(shu)(shu)多(duo)種(zhong)油(you)品時,宜采(cai)(cai)用(yong)順序輸(shu)(shu)送(song)工藝(yi)。若(ruo)采(cai)(cai)用(yong)專(zhuan)管專(zhuan)用(yong)輸(shu)(shu)送(song)工藝(yi),應(ying)進(jin)行技術經濟論證。


(3)輸(shu)油(you)管(guan)道系統輸(shu)送工(gong)藝(yi)方(fang)(fang)案應依據設計內壓(ya)力、管(guan)道管(guan)型及鋼種等級、管(guan)徑、壁(bi)厚、輸(shu)送方(fang)(fang)式(shi)、輸(shu)油(you)站數、順序輸(shu)送油(you)品批次(ci)等,以多個組(zu)合方(fang)(fang)案進(jin)行比選,確定最佳輸(shu)油(you)工(gong)藝(yi)方(fang)(fang)案。


(4)管輸(shu)原油(you)質量應符合國(guo)家現(xian)行(xing)標(biao)準SY/T 7513的(de)規定;管輸(shu)液態液化石油(you)氣的(de)質量應符合現(xian)行(xing)國(guo)家標(biao)準GB 9052.1或GB11174的(de)規定;管輸(shu)其(qi)他成品(pin)油(you)質量應符合國(guo)家現(xian)行(xing)產(chan)品(pin)標(biao)準。


(5)輸油管道系統輸送工藝總流程(cheng)圖應標(biao)注首站(zhan)(zhan)、中間(jian)站(zhan)(zhan)、末站(zhan)(zhan)的輸油量,進出站(zhan)(zhan)壓(ya)力(li)及(ji)油溫等主要(yao)工藝參數。并(bing)注明線路截斷(duan)閥、大型穿跨越(yue)、各站(zhan)(zhan)間(jian)及(ji)里程(cheng)、高程(cheng)(注明是否有(you)翻(fan)越(yue)點)。


(6)輸(shu)油管道(dao)系統輸(shu)送工藝(yi)設(she)計應包括水力(li)和熱力(li)計算,并進行穩態和瞬(shun)態水力(li)分析,提出輸(shu)油管道(dao)在密(mi)閉(bi)輸(shu)送中瞬(shun)變流(liu)動(dong)過程的控(kong)制方法。


(7)輸油管道的(de)設計(ji)(ji)應(ying)符合現行國家(jia)標準(zhun)GB50253的(de)規定(ding),其穿跨越工程設計(ji)(ji)應(ying)符合國家(jia)現行標準(zhun) SY/T 0015.1 SY/T 0015.2的(de)有(you)關規定(ding)。


(8)原(yuan)油(you)管道、成品油(you)管道和液態液化石(shi)油(you)氣(LPG)管道系統(tong)輸送工藝的計算及成品.油(you)順序輸送混油(you)段長度(du)計算應按(an)現(xian)行國家標(biao)準GB 50253有關規(gui)定計算。埋地(di)的(de)原油(you)輸送管道的(de)沿線溫降應按現(xian)行國家標(biao)準GB 50253有關規(gui)定計算。


(9)原油(you)管道輸送要求:


      根據被(bei)輸(shu)送原油的物理化學性質及其流變性,通過優(you)化比選(xuan),選(xuan)擇(ze)最佳(jia)輸(shu)送方式(shi);


      加(jia)熱輸送的埋(mai)地原油管(guan)道(dao),優選加(jia)熱溫度;管(guan)道(dao)是否需保溫,進行管(guan)道(dao)保溫與不保溫的技(ji)術經濟(ji)比較,確定合理方案。


(10)成品油管道(dao)輸送要求:


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


      輸送多品種成(cheng)品油時,宜采用單管(guan)順序(xu)輸送。油品批量(liang)輸送的排列(lie)順序(xu),將油品性質相(xiang)近(jin)的緊鄰排列(lie);


      成(cheng)品(pin)油(you)順(shun)序輸送管道,在輸油(you)站間不宜設置副管;


      在(zai)順序輸(shu)送高黏度(du)成(cheng)品油(如重油)時宜(yi)使用隔離裝(zhuang)置;


      多品種成品油順序輸送(song)(song)管(guan)道,采(cai)(cai)用連續輸送(song)(song)方(fang)式;當采(cai)(cai)用間歇輸送(song)(song)時,應(ying)采(cai)(cai)取(qu)措施以減少(shao)混(hun)油量(liang);


      采(cai)用旁接(jie)油罐(guan)輸(shu)送工(gong)(gong)藝,當多種油品順(shun)序輸(shu)送混(hun)油界面通過泵(beng)(beng)站時(shi),應切換(huan)成泵(beng)(beng)到(dao)泵(beng)(beng)輸(shu)送工(gong)(gong)藝;


      根據油(you)(you)罐(guan)區的(de)建設和營運費(fei)用與混(hun)油(you)(you)貶值(zhi)造成的(de)費(fei)用損失(shi)兩個方面進行(xing)綜(zong)合(he)比較(jiao)后,確定最佳(jia)循環(huan)次數。


(11)液態液化石油氣(LPG)管道輸送要(yao)求:


      按(an)設計(ji)委托書或設計(ji)合同(tong)規定的液態液化(hua)石油氣輸量、組分與各組分的比例,進行液態液化(hua)石油氣管道(dao)系統輸送(song)工藝設計(ji);


      液(ye)態液(ye)化石油(you)(you)氣(qi)(qi)在管道中輸(shu)(shu)送時,沿線任何一點(dian)的(de)壓力都(dou)必須高于(yu)輸(shu)(shu)送溫(wen)度(du)下(xia)(xia)液(ye)化石油(you)(you)氣(qi)(qi)的(de)飽和(he)(he)蒸氣(qi)(qi)壓。沿線各中間站(zhan)的(de)進站(zhan)壓力應比同溫(wen)度(du)下(xia)(xia)液(ye)化石油(you)(you)氣(qi)(qi)的(de)飽和(he)(he)蒸氣(qi)(qi)壓力高1.0MPa,末站(zhan)進儲(chu)罐前的(de)壓力應比同溫(wen)度(du)下(xia)(xia)液(ye)化石油(you)(you)氣(qi)(qi)的(de)飽和(he)(he)蒸氣(qi)(qi)壓力高0.5MPa。


      液(ye)態(tai)液(ye)化石油氣在管(guan)道內的平均流速,應經(jing)技術經(jing)濟比較(jiao)后確定(ding),但(dan)要注意因管(guan)內摩阻升溫而需另行(xing)冷卻的能耗(hao),可取0.8~1.4m/s,但(dan)最(zui)大不應超過3m/s。






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