用管(guan)(guan)道輸(shu)(shu)(shu)(shu)(shu)(shu)送原油(you)(you)(you)、成品油(you)(you)(you)和(he)液化石油(you)(you)(you)氣的(de)建設工程(cheng)。一般包(bao)括輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)管(guan)(guan)道、輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)站(zhan)(zhan)(zhan)及輔助設施等工程(cheng)內容。輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)管(guan)(guan)道系統(tong)是(shi)(shi)各類(lei)型輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)站(zhan)(zhan)(zhan)、管(guan)(guan)道及有(you)關(guan)設施的(de)統(tong)稱。輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)站(zhan)(zhan)(zhan)是(shi)(shi)輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)管(guan)(guan)道工程(cheng)中(zhong)(zhong)各類(lei)工藝站(zhan)(zhan)(zhan)場(chang)的(de)統(tong)稱。首站(zhan)(zhan)(zhan)是(shi)(shi)輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)管(guan)(guan)道的(de)起點站(zhan)(zhan)(zhan)。中(zhong)(zhong)間(jian)站(zhan)(zhan)(zhan)是(shi)(shi)在輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)首站(zhan)(zhan)(zhan)和(he)末站(zhan)(zhan)(zhan)之間(jian)設有(you)的(de)各類(lei)站(zhan)(zhan)(zhan)場(chang)的(de)統(tong)稱。分輸(shu)(shu)(shu)(shu)(shu)(shu)站(zhan)(zhan)(zhan)是(shi)(shi)在輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)管(guan)(guan)道沿線,為(wei)分輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)品至(zhi)用戶而設置的(de)站(zhan)(zhan)(zhan)場(chang)。中(zhong)(zhong)間(jian)加熱站(zhan)(zhan)(zhan)是(shi)(shi)在輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)首站(zhan)(zhan)(zhan)和(he)末站(zhan)(zhan)(zhan)之間(jian)以加熱設施為(wei)主的(de)輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)站(zhan)(zhan)(zhan)。末站(zhan)(zhan)(zhan)是(shi)(shi)輸(shu)(shu)(shu)(shu)(shu)(shu)油(you)(you)(you)管(guan)(guan)道的(de)終點站(zhan)(zhan)(zhan)。


(1)輸(shu)(shu)(shu)(shu)油管(guan)道工(gong)程設(she)計(ji)計(ji)算輸(shu)(shu)(shu)(shu)油量(liang)(liang)(liang)時,年工(gong)作天數應(ying)按350天計(ji)算。應(ying)按設(she)計(ji)委托書或設(she)計(ji)合同規(gui)定(ding)的輸(shu)(shu)(shu)(shu)量(liang)(liang)(liang)(年輸(shu)(shu)(shu)(shu)量(liang)(liang)(liang)、月(yue)輸(shu)(shu)(shu)(shu)量(liang)(liang)(liang)、日輸(shu)(shu)(shu)(shu)量(liang)(liang)(liang))作為設(she)計(ji)輸(shu)(shu)(shu)(shu)量(liang)(liang)(liang)。設(she)計(ji)最小輸(shu)(shu)(shu)(shu)量(liang)(liang)(liang)應(ying)符(fu)合經濟及安全輸(shu)(shu)(shu)(shu)送條件(jian)。


(2)輸(shu)油(you)管(guan)道(dao)設計(ji)宜采(cai)用(yong)密閉(bi)輸(shu)送工(gong)(gong)藝(yi)。若(ruo)(ruo)采(cai)用(yong)其(qi)他輸(shu)送工(gong)(gong)藝(yi),應進行(xing)技術經濟論(lun)證(zheng)(zheng),并說(shuo)明其(qi)可行(xing)性。當管(guan)輸(shu)多種油(you)品時,宜采(cai)用(yong)順序輸(shu)送工(gong)(gong)藝(yi)。若(ruo)(ruo)采(cai)用(yong)專(zhuan)管(guan)專(zhuan)用(yong)輸(shu)送工(gong)(gong)藝(yi),應進行(xing)技術經濟論(lun)證(zheng)(zheng)。


(3)輸(shu)油(you)管道系統輸(shu)送工藝方案(an)應依據(ju)設(she)計內(nei)壓力、管道管型及(ji)鋼種等級、管徑(jing)、壁厚、輸(shu)送方式、輸(shu)油(you)站數、順(shun)序輸(shu)送油(you)品批次等,以多個(ge)組(zu)合方案(an)進(jin)行比選(xuan),確定最(zui)佳輸(shu)油(you)工藝方案(an)。


(4)管(guan)輸原(yuan)油質(zhi)(zhi)量應符合(he)國家(jia)現(xian)行標(biao)準SY/T 7513的(de)規定(ding);管(guan)輸液態液化(hua)石油氣的(de)質(zhi)(zhi)量應符合(he)現(xian)行國家(jia)標(biao)準GB 9052.1或GB11174的(de)規定(ding);管(guan)輸其他(ta)成(cheng)品油質(zhi)(zhi)量應符合(he)國家(jia)現(xian)行產品標(biao)準。


(5)輸(shu)油(you)管(guan)道系統輸(shu)送工藝總流(liu)程圖應(ying)標注首站、中間站、末(mo)站的(de)輸(shu)油(you)量(liang),進(jin)出站壓力及油(you)溫等(deng)主要工藝參數。并注明線(xian)路(lu)截斷閥、大型穿跨越、各站間及里程、高程(注明是否(fou)有翻越點)。


(6)輸油管(guan)道系統輸送工藝(yi)設計(ji)應包(bao)括水力和(he)(he)熱(re)力計(ji)算(suan),并(bing)進行穩(wen)態(tai)和(he)(he)瞬(shun)態(tai)水力分(fen)析,提出輸油管(guan)道在密閉輸送中瞬(shun)變流動過程的控(kong)制方法。


(7)輸油管道的設計(ji)(ji)應符合(he)(he)現行(xing)國家標準GB50253的規(gui)定,其穿跨越(yue)工(gong)程(cheng)設計(ji)(ji)應符合(he)(he)國家現行(xing)標準 SY/T 0015.1 SY/T 0015.2的有關規(gui)定。


(8)原油(you)管(guan)道(dao)、成品油(you)管(guan)道(dao)和液(ye)(ye)態(tai)液(ye)(ye)化石油(you)氣(LPG)管(guan)道(dao)系統輸(shu)送工(gong)藝的計算(suan)及成品.油(you)順序輸(shu)送混油(you)段長度計算(suan)應按現行國(guo)家標準(zhun)GB 50253有關規(gui)定(ding)計算(suan)。埋(mai)地(di)的原油輸(shu)送管(guan)道的沿線(xian)溫降應(ying)按現行國家(jia)標準(zhun)GB 50253有(you)關規定計(ji)算。


(9)原油管道輸送要求:


      根(gen)據被輸送原油的物理(li)化學性(xing)質(zhi)及其流變性(xing),通過優化比選,選擇最佳(jia)輸送方式;


      加熱輸(shu)送的(de)埋地原油(you)管道,優(you)選加熱溫度;管道是否需保溫,進行管道保溫與不保溫的(de)技術經濟(ji)比較(jiao),確定合理方案。


(10)成(cheng)品(pin)油管道輸送要求:


      按設(she)計委托書或設(she)計合(he)同(tong)規(gui)定的成(cheng)(cheng)品(pin)油輸(shu)量、品(pin)種與(yu)各品(pin)種的比例,以及分(fen)輸(shu)、輸(shu)入數量,進行(xing)成(cheng)(cheng)品(pin)油管道系統(tong)輸(shu)送工藝設(she)計;


      輸(shu)送多品(pin)種成品(pin)油(you)時,宜采(cai)用單(dan)管(guan)順序(xu)輸(shu)送。油(you)品(pin)批量(liang)輸(shu)送的(de)排列順序(xu),將(jiang)油(you)品(pin)性質相近的(de)緊鄰排列;


      成品油(you)(you)順序輸(shu)送管道(dao),在(zai)輸(shu)油(you)(you)站間(jian)不宜設置副管;


      在順(shun)序輸送高黏度(du)成品油(如重油)時宜使(shi)用隔(ge)離裝置;


      多品(pin)種成品(pin)油順(shun)序輸送管道,采用連續輸送方式(shi);當采用間歇輸送時,應采取措施(shi)以減少(shao)混油量;


      采用(yong)旁(pang)接油(you)罐(guan)輸(shu)送(song)工藝(yi),當多(duo)種油(you)品順(shun)序(xu)輸(shu)送(song)混油(you)界面通過(guo)泵站時(shi),應切換成泵到泵輸(shu)送(song)工藝(yi);


      根據(ju)油罐區的建設(she)和營運費(fei)(fei)用與混油貶值造成的費(fei)(fei)用損(sun)失兩個方(fang)面進(jin)行綜合比較后(hou),確定最佳循環次數。


(11)液(ye)態液(ye)化石油氣(qi)(LPG)管道輸送要求:


      按設(she)計委托書(shu)或設(she)計合同規定(ding)的(de)液(ye)(ye)(ye)態液(ye)(ye)(ye)化(hua)石油氣輸(shu)量(liang)、組分與各(ge)組分的(de)比(bi)例,進(jin)行(xing)液(ye)(ye)(ye)態液(ye)(ye)(ye)化(hua)石油氣管道系統輸(shu)送工藝設(she)計;


      液(ye)態液(ye)化(hua)石(shi)油(you)氣(qi)(qi)在(zai)管(guan)道中輸送時,沿線(xian)任(ren)何一點的(de)(de)壓(ya)(ya)力(li)(li)(li)都(dou)必須(xu)高于輸送溫度下(xia)(xia)液(ye)化(hua)石(shi)油(you)氣(qi)(qi)的(de)(de)飽(bao)和(he)蒸(zheng)氣(qi)(qi)壓(ya)(ya)。沿線(xian)各中間站的(de)(de)進(jin)站壓(ya)(ya)力(li)(li)(li)應(ying)比(bi)同溫度下(xia)(xia)液(ye)化(hua)石(shi)油(you)氣(qi)(qi)的(de)(de)飽(bao)和(he)蒸(zheng)氣(qi)(qi)壓(ya)(ya)力(li)(li)(li)高1.0MPa,末站進(jin)儲罐前的(de)(de)壓(ya)(ya)力(li)(li)(li)應(ying)比(bi)同溫度下(xia)(xia)液(ye)化(hua)石(shi)油(you)氣(qi)(qi)的(de)(de)飽(bao)和(he)蒸(zheng)氣(qi)(qi)壓(ya)(ya)力(li)(li)(li)高0.5MPa。


      液態液化石油(you)氣在管道內的(de)平均(jun)流速,應經技術(shu)經濟比較后(hou)確定,但要注(zhu)意因管內摩阻升溫而需另(ling)行冷卻的(de)能耗,可(ke)取0.8~1.4m/s,但最(zui)大(da)不應超過(guo)3m/s。






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