本文選題：原油輸油管道　切入點：剩余強度　出處：《東北石油大學》2017年碩士論文　論文類型：學位論文

【摘要】：原油外輸管道的腐蝕程度隨著管道運行年限的增加而不斷加劇。目前國內(nèi)現(xiàn)有的管道檢測技術在針對不同類型管道的腐蝕缺陷評價方面,尚無統(tǒng)一的標準和方法,給原油管道的維修、大修和完整性管理帶來一定不確定性,增加了管道運營的成本。本文運用統(tǒng)計方法分析研究了慶哈輸油管道的腐蝕缺陷特征,從腐蝕缺陷的位置、寬度、長度以及深度等參數(shù)中,總結梳理出慶哈輸油管道的總體腐蝕特征形態(tài)和基本分布規(guī)律。為進一步減少目前各類評價方法的局限性,本文在匯總分析和提煉國內(nèi)外相關學術研究的基礎上,重點在腐蝕管道評價方向采取基于有限元分析的方法對被腐蝕原油管道的基本強度進行了評估,從而得出更符合原油儲運工程要求的總體評估結果。將有限元分析法的分析結果與國內(nèi)原油工業(yè)的相關標準和試驗結果進行了比較,初步顯現(xiàn)出有限元法的比較優(yōu)勢。進一步支撐了有限元分析法在原油管道剩余強度分析的科學性,有效性。
[Abstract]:The corrosion degree of crude oil pipeline increases with the increase of pipeline service life. At present, there is no uniform standard and method for the evaluation of corrosion defects of different types of pipeline in the existing pipeline detection technology in China. It brings some uncertainty to the maintenance, overhaul and integrality management of crude oil pipeline, and increases the cost of pipeline operation. This paper analyzes and studies the characteristics of corrosion defect of Qingha oil pipeline by using statistical method, from the position and width of corrosion defect, Among the parameters such as length and depth, the general corrosion characteristics and basic distribution of Qingha oil pipeline are summarized and combed out. In order to further reduce the limitations of various evaluation methods at present, On the basis of summing up and analyzing and refining relevant academic research at home and abroad, this paper focuses on evaluating the basic strength of corroded crude oil pipeline based on finite element analysis in the direction of corrosion pipeline evaluation. Thus, the overall evaluation results that meet the requirements of crude oil storage and transportation engineering are obtained. The results of finite element analysis are compared with the relevant standards and test results of domestic crude oil industry. The comparative advantage of the finite element method is shown preliminarily, which further supports the scientific and effective application of the finite element method in the residual strength analysis of crude oil pipelines.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TE973
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本文編號：1649278