Title :
Grey Decision on Oil Distillation Tower Top Exchangers Maintenance Overhaul
Author :
Wang, Zhengfang ; Wang, Yong ; Wang, Weiqiang ; Cheng, Yiyuan ; Qi, Hui ; Qu, Dawei
Author_Institution :
Inst. of Mech. Eng., China Univ. of Pet. CUP, Dongying
Abstract :
The exchangers on the top of tower exposed to wash erosion seriously when Shengli refinery processed Middle-east crude oil. Used grey system theory, aimed at general tube-shell exchangers and helix-baffled structure, tube of 20 carbon steel with TH847 coating, 20 steel aluminizing, 316L and dual phase steel, carried on grey decision. For exchangers rebuilding project, grey target decision shows that helix-baffled exchangers with 20+TH847 coating tube is the best preference plan, while grey incidence decision shows that the helix-baffled structure with 20 carbon steel aluminizing tube is the preferential plan. In general, helix-baffled structure is better than general contractures, should adopt advanced manufacture technology to lower the fabricate difficulty.
Keywords :
carbon steel; crude oil; decision theory; distillation; grey systems; heat exchangers; maintenance engineering; oil refining; petroleum industry; pipes; shells (structures); FeCJk; Shengli refinery; TH847 coating; carbon steel aluminizing tubes; crude oil; grey decision; grey system theory; helix-baffled structures; maintenance; oil distillation tower top exchangers; tube-shell exchangers; Coatings; Corrosion; Heat transfer; Manufacturing; Mechanical engineering; Petroleum; Poles and towers; Refining; Safety; Steel; grey decision; grey incidence decision; grey target decision; maintenance overhaul;
Conference_Titel :
Electronic Computer Technology, 2009 International Conference on
Conference_Location :
Macau
Print_ISBN :
978-0-7695-3559-3
DOI :
10.1109/ICECT.2009.108
