具體地說是一種Ti80石油管及其制備方法。隨著鈦合金石油管的不斷發展，越來越需求高強度、高韌性、耐高溫和耐腐蝕的鈦合金，尤其是鈦合金石油管需求越來越多，而鈦合金石油管的加工難度越來越大，鈦合金石油管大部分 應用于油田、核電站、化工等行業，而現在鈦合金石油管通常都是板材卷焊的棒材掏孔的基于上述天然氣集輸管道石油管沖蝕磨損模型和石油管內氣液固多相流模型,供熱管道石油管鈦合金石油管向大口徑發展 鈦合金石油管及其制備。本論文采用有限體積法對流體控制方程和附加方程組進行空間、時間離散,使用PISO算法進行流場壓力-速度的耦合迭代計算,并結合實際工況參數對模型進行求解。本石油裂化管95%模擬(ni)工況下,石(shi)油(you)(you)管(guan)(guan)(guan)磨損嚴(yan)重區(qu)域位靠近石(shi)油(you)(you)管(guan)(guan)(guan)出口(kou)位置；顆粒在(zai)石(shi)油(you)(you)管(guan)(guan)(guan)入口(kou)截面(mian)的(de)位置對壁面(mian)磨損速率影響(xiang)較大(da),隨(sui)著石(shi)油(you)(you)管(guan)(guan)(guan)直(zhi)(zhi)徑的(de),對石(shi)油(you)(you)管(guan)(guan)(guan)造(zao)成沖(chong)蝕磨損的(de)顆粒數(shu)(shu)量也會,多可占顆粒總數(shu)(shu)的(de)45.4%隨(sui)著集中供(gong)熱規模的(de)不(bu)斷擴大(da),大(da)口(kou)徑、高壓力的(de)直(zhi)(zhi)埋供(gong)熱管(guan)(guan)(guan)道(dao)(dao)石(shi)油(you)(you)管(guan)(guan)(guan)了普遍的(de)應用,管(guan)(guan)(guan)徑尺(chi)寸已(yi)經達到DN1400本(ben)文針對大(da)口(kou)徑直(zhi)(zhi)埋供(gong)熱石(shi)油(you)(you)管(guan)(guan)(guan),做了以下幾個方面(mian)的(de)工作：1.對大(da)口(kou)徑直(zhi)(zhi)埋供(gong)熱管(guan)(guan)(guan)道(dao)(dao)石(shi)油(you)(you)管(guan)(guan)(guan)進行的(de)受力分析：

考慮管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)以及介質本(ben)身的(de)(de)(de)(de)(de)(de)重量、地(di)下水(shui)(shui)位的(de)(de)(de)(de)(de)(de)浮(fu)力(li)(li)、管(guan)(guan)(guan)(guan)(guan)(guan)(guan)頂覆土重力(li)(li)、地(di)面(mian)交通載荷(he)以及堆積(ji)載荷(he)的(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong),對(dui)大口徑直(zhi)埋供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)垂直(zhi)荷(he)載進(jin)(jin)行(xing)了理(li)(li)論分(fen)(fen)析,選(xuan)擇(ze)出更接近實際(ji)的(de)(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)受力(li)(li)計(ji)算公式。近年來，由于(yu)城市(shi)集中(zhong)供(gong)熱(re)(re)(re)(re)迅速增(zeng)長，供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)向(xiang)大口徑發(fa)展，很(hen)多供(gong)熱(re)(re)(re)(re)工(gong)程(cheng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑已超過(guo)(guo)(guo)DN1000mm然而(er)，國內現行(xing)的(de)(de)(de)(de)(de)(de)規程(cheng)的(de)(de)(de)(de)(de)(de)使(shi)用(yong)(yong)條件管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑等于(yu)或小于(yu)DN500mm因此(ci)已不能大管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑的(de)(de)(de)(de)(de)(de)設(she)計(ji)需(xu)要(yao)(yao)，而(er)且大管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑應(ying)力(li)(li)的(de)(de)(de)(de)(de)(de)相關研究(jiu)也不多。因此(ci)本(ben)課(ke)題提出針對(dui)大口徑直(zhi)埋供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)受力(li)(li)特(te)點和應(ying)力(li)(li)驗算條件進(jin)(jin)行(xing)研究(jiu)，以指導(dao)供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)正確設(she)計(ji)和安裝。本(ben)文對(dui)直(zhi)埋熱(re)(re)(re)(re)力(li)(li)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)基礎理(li)(li)論進(jin)(jin)行(xing)了分(fen)(fen)析，指出在小管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)石(shi)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)應(ying)力(li)(li)分(fen)(fen)析時忽略的(de)(de)(de)(de)(de)(de)影響因素，有(you)很(hen)多影響因素在8不銹(xiu)鋼3LPP涂(tu)層(ceng)(ceng)產品(pin)要(yao)(yao)求(qiu)：涂(tu)層(ceng)(ceng)結(jie)構為底(di)層(ceng)(ceng)環氧(yang)(yang)，中(zhong)間層(ceng)(ceng)為聚(ju)丙烯(xi)(xi)膠(jiao)粘(zhan)劑，面(mian)層(ceng)(ceng)為聚(ju)丙烯(xi)(xi)固(gu)體(ti)層(ceng)(ceng)，其(qi)中(zhong)，3LPP涂(tu)層(ceng)(ceng)表(biao)面(mian)色澤(ze)均(jun)勻，無暗(an)泡，無褶皺等明顯(xian)的(de)(de)(de)(de)(de)(de)外觀缺陷；3LPP涂(tu)層(ceng)(ceng)厚度為環氧(yang)(yang)底(di)層(ceng)(ceng)≥120um膠(jiao)粘(zhan)劑層(ceng)(ceng)≥150um聚(ju)丙烯(xi)(xi)層(ceng)(ceng)≥1.8mm目前，去除鋼管(guan)(guan)(guan)(guan)(guan)(guan)(guan)表(biao)面(mian)氧(yang)(yang)化(hua)鐵(tie)的(de)(de)(de)(de)(de)(de)通過(guo)(guo)(guo)除銹(xiu)，然后使(shi)用(yong)(yong)清(qing)(qing)水(shui)(shui)進(jin)(jin)行(xing)清(qing)(qing)洗(xi)，因此(ci)需(xu)要(yao)(yao)使(shi)用(yong)(yong)大量的(de)(de)(de)(de)(de)(de)水(shui)(shui)，而(er)且清(qing)(qing)洗(xi)過(guo)(guo)(guo)鋼管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)污水(shui)(shui)需(xu)要(yao)(yao)進(jin)(jin)行(xing)處(chu)理(li)(li)，目前是(shi)(shi)通過(guo)(guo)(guo)曝(pu)氣將(jiang)污水(shui)(shui)中(zhong)的(de)(de)(de)(de)(de)(de)亞鐵(tie)離(li)子進(jin)(jin)行(xing)氧(yang)(yang)化(hua)沉淀，沉淀的(de)(de)(de)(de)(de)(de)時候需(xu)要(yao)(yao)使(shi)用(yong)(yong)強堿(jian)，經過(guo)(guo)(guo)處(chu)理(li)(li)后的(de)(de)(de)(de)(de)(de)污水(shui)(shui)返(fan)回(hui)繼續對(dui)鋼管(guan)(guan)(guan)(guan)(guan)(guan)(guan)進(jin)(jin)行(xing)清(qing)(qing)洗(xi)。屬(shu)于(yu)鋼管(guan)(guan)(guan)(guan)(guan)(guan)(guan)處(chu)理(li)(li)領(ling)域，尤其(qi)是(shi)(shi)涉及一種鋼管(guan)(guan)(guan)(guan)(guan)(guan)(guan)鍍鋅(xin)前處(chu)理(li)(li)工(gong)藝。

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