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(mo)擬工(gong)況下,石(shi)油(you)管(guan)(guan)磨損嚴重區域位(wei)靠近石(shi)油(you)管(guan)(guan)出口(kou)位(wei)置；顆(ke)粒在(zai)石(shi)油(you)管(guan)(guan)入口(kou)截面(mian)的(de)位(wei)置對(dui)壁面(mian)磨損速率影響較大,隨(sui)著石(shi)油(you)管(guan)(guan)直(zhi)(zhi)徑(jing)的(de),對(dui)石(shi)油(you)管(guan)(guan)造(zao)成(cheng)沖蝕磨損的(de)顆(ke)粒數量也會(hui),多(duo)可占顆(ke)粒總數的(de)45.4%隨(sui)著集中供(gong)熱規模(mo)的(de)不(bu)斷擴大,大口(kou)徑(jing)、高壓力的(de)直(zhi)(zhi)埋供(gong)熱管(guan)(guan)道石(shi)油(you)管(guan)(guan)了普(pu)遍的(de)應用,管(guan)(guan)徑(jing)尺寸已(yi)經達到DN1400本文針對(dui)大口(kou)徑(jing)直(zhi)(zhi)埋供(gong)熱石(shi)油(you)管(guan)(guan),做了以下幾個方(fang)面(mian)的(de)工(gong)作：1.對(dui)大口(kou)徑(jing)直(zhi)(zhi)埋供(gong)熱管(guan)(guan)道石(shi)油(you)管(guan)(guan)進行的(de)受(shou)力分析：

考慮管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)以及介質本身的(de)(de)(de)(de)(de)重(zhong)量、地下(xia)水(shui)位(wei)的(de)(de)(de)(de)(de)浮力(li)(li)、管(guan)(guan)(guan)(guan)(guan)(guan)(guan)頂覆土重(zhong)力(li)(li)、地面交(jiao)通(tong)載荷(he)以及堆(dui)積(ji)載荷(he)的(de)(de)(de)(de)(de)作用(yong),對(dui)大(da)(da)口(kou)徑(jing)直(zhi)埋供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)垂直(zhi)荷(he)載進行(xing)了理(li)(li)論(lun)(lun)分(fen)析(xi),選(xuan)擇出更接近實際的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)受(shou)力(li)(li)計算公式。近年來，由于城(cheng)市(shi)集(ji)中(zhong)供(gong)熱(re)(re)(re)(re)迅速增長，供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)向大(da)(da)口(kou)徑(jing)發(fa)展，很多供(gong)熱(re)(re)(re)(re)工程管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)已超(chao)過DN1000mm然(ran)而，國內現行(xing)的(de)(de)(de)(de)(de)規程的(de)(de)(de)(de)(de)使用(yong)條件(jian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)等于或小于DN500mm因此(ci)(ci)已不能大(da)(da)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)的(de)(de)(de)(de)(de)設計需(xu)要(yao)，而且大(da)(da)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)應力(li)(li)的(de)(de)(de)(de)(de)相關(guan)研究也不多。因此(ci)(ci)本課題提出針(zhen)對(dui)大(da)(da)口(kou)徑(jing)直(zhi)埋供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)受(shou)力(li)(li)特點和(he)應力(li)(li)驗(yan)算條件(jian)進行(xing)研究，以指(zhi)導供(gong)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)正確(que)設計和(he)安裝。本文(wen)對(dui)直(zhi)埋熱(re)(re)(re)(re)力(li)(li)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)基礎理(li)(li)論(lun)(lun)進行(xing)了分(fen)析(xi)，指(zhi)出在(zai)小管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑(jing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)石油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)應力(li)(li)分(fen)析(xi)時(shi)忽略的(de)(de)(de)(de)(de)影(ying)響因素(su)，有很多影(ying)響因素(su)在(zai)8不銹(xiu)鋼(gang)3LPP涂層產品要(yao)求：涂層結構為(wei)底(di)(di)層環(huan)氧(yang)(yang)，中(zhong)間層為(wei)聚丙(bing)烯膠(jiao)粘(zhan)劑，面層為(wei)聚丙(bing)烯固體層，其(qi)中(zhong)，3LPP涂層表面色澤(ze)均勻，無暗泡，無褶皺等明顯的(de)(de)(de)(de)(de)外(wai)觀缺(que)陷(xian)；3LPP涂層厚度(du)為(wei)環(huan)氧(yang)(yang)底(di)(di)層≥120um膠(jiao)粘(zhan)劑層≥150um聚丙(bing)烯層≥1.8mm目(mu)前(qian)，去除(chu)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)表面氧(yang)(yang)化(hua)鐵(tie)的(de)(de)(de)(de)(de)通(tong)過除(chu)銹(xiu)，然(ran)后使用(yong)清水(shui)進行(xing)清洗，因此(ci)(ci)需(xu)要(yao)使用(yong)大(da)(da)量的(de)(de)(de)(de)(de)水(shui)，而且清洗過鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)污水(shui)需(xu)要(yao)進行(xing)處(chu)(chu)理(li)(li)，目(mu)前(qian)是通(tong)過曝氣將(jiang)污水(shui)中(zhong)的(de)(de)(de)(de)(de)亞鐵(tie)離子進行(xing)氧(yang)(yang)化(hua)沉淀，沉淀的(de)(de)(de)(de)(de)時(shi)候需(xu)要(yao)使用(yong)強堿，經過處(chu)(chu)理(li)(li)后的(de)(de)(de)(de)(de)污水(shui)返回繼(ji)續對(dui)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)進行(xing)清洗。屬于鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)處(chu)(chu)理(li)(li)領域(yu)，尤其(qi)是涉及一種鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)鍍鋅前(qian)處(chu)(chu)理(li)(li)工藝。

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