[1]李文升,劉雪梅,朱正寫,等.SLE型急冷換熱器內管泄漏失效分析[J].石油管材與儀器,2020,6(03):38-41.[doi:10.19459/j.cnki.61-1500/te.2020.03.010]
 LI Wensheng,LIU Xuemei,ZHU Zhengxie,et al.Failure Analysis of Inner Tube Leakage of SLE Quench Heat Exchanger[J].Petroleum Tubular Goods & Instruments,2020,6(03):38-41.[doi:10.19459/j.cnki.61-1500/te.2020.03.010]
點擊復制

SLE型急冷換熱器內管泄漏失效分析
分享到:

《石油管材與儀器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
6
期數:
2020年03期
頁碼:
38-41
欄目:
失效分析與預防
出版日期:
2020-06-20

文章信息/Info

Title:
Failure Analysis of Inner Tube Leakage of SLE Quench Heat Exchanger
文章編號:
2096-0077(2020)03--0038-04
作者:
李文升1劉雪梅2朱正寫3尹成先1付安慶1
1. 中國石油集團石油管工程技術研究院,石油管材及裝備材料服役行為與結構安全國家重點實驗室 陜西 西安 710077;2. 蘭州石化公司研究院 甘肅 蘭州 730060; 3. 中國石油蘭州石化公司石油化工廠 甘肅 蘭州 730060
Author(s):
LI Wensheng1 LIU Xuemei2 ZHU Zhengxie3 YIN Chengxian1 FU Anqing1
1. State Key Laboratory for Performance and Structural Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute,Xi′an,Shaanxi 710077,China; 2. Research Institute of Lanzhou Petrochemical Company, Lanzhou, Gansu 730060, China; 3. CNPC Petrochemical Plant of Lanzhou Petrochemical Company, Lanzhou, Gansu 730060, China
關鍵詞:
乙烯裂解爐SLE型急冷換熱器穿孔泄漏高溫氧化腐蝕
Keywords:
ethylene cracking furnace SLE quench heat exchanger perforation leakage high temperature oxidation corrosion
分類號:
TE965
DOI:
10.19459/j.cnki.61-1500/te.2020.03.010
文獻標志碼:
A
摘要:
某石化廠2018年SLE型急冷換熱器內管長時間服役后發生穿孔泄漏事故,管內和管外介質分別為高溫裂解氣與高溫蒸汽,為了確定該泄漏失效的原因,對失效樣品進行了理化試驗及數值模擬研究。能譜及XRD分析顯示腐蝕產物主要成分為Fe3O4,腐蝕位置主要集中于急冷器入口附近;數值模擬顯示其腐蝕位置與管內水沸騰區位置一致;試驗分析結果表明,該內管泄漏失效主要是因為殼程側介質沸騰引起的局部高溫、流體沖刷和空泡腐蝕等因素共同作用而導致。
Abstract:
The inner tube of a SLE quench heat exchanger in a certain petrochemical plant experienced a perforation and leakage accident in 2018 after a longterm service. The flowing medium inside and outside the tube was hightemperature cracked gas and hightemperature steam respectively. Physichemical tests and numerical study were carried out based on the failure samples to find out the cause of failure. Energy spectrum and XRD analysis show that the main component of the corrosion product is Fe3O4, and the corrosion area is mainly located near the inlet of the quencher. The numerical simulation shows that the location of the corrosion is consistent with the water boiling zone. The results show that the direct cause of inner tube leakage is the coupling effect of local overtemperature, fluid erosion, cavitation corrosion and so on.

參考文獻/References:

[1] 王松漢.乙烯裝置技術與運行[M]. 北京 :中國石化出版社, 2009.
[2] 茍紅霞,朱永樂.乙烯裝置初分餾系統模擬計算和系統分析[J]. 化工設計,2003,13(2):8-13.
[3] 許斌.乙烯裝置急冷系統工藝模擬與研究[D]. 天津 : 天津 大學,2005.
[4] 朱正寫.乙烯裂解爐第一急冷器頭部損壞分析[J]. 風機技術,2012,6(5):70-75.
[5] 盧正雄,李元明,張曉.裂解爐線性套管式換熱器內管失效的原因分析及在線處理的方法[J]. 當代化工,2016,45(12):2824-2827.
[6] 姚子榮,康龍.裂解爐SLE急冷器失效分析[J]. 石油化工應用,2010,29(8):85-89.
[7] 李蓉蓉.雙套管廢熱鍋爐失效機理分析[J]. 壓力容器,2008,6(12):33-38,48.
[8] 章燕謀.鍋爐與壓力容器鋼[M]. 西安:西安交通大學出版社,1996.

備注/Memo

備注/Memo:
基金項目:國家博士后科學項目“氣田集輸管道彎頭內氣液固沖刷腐蝕機理及預測技術研究”(項目編號:2019M663850) 第一作者簡介:李文升,男,1986年生,博士后,2018年畢業于西安交通大學動力工程及工程熱物理專業,獲博士學位,現主要從事沖刷腐蝕與防護相關工作。E-mail: [email protected]
更新日期/Last Update: 2020-06-25
河北河北十一选五口诀