石油与天然气化工2017，Vol.46Issue(2)：105-111,7.DOI:10.3969/j.issn.1007-3426.2017.02.021
延迟焦化装置焦炭塔安全评估与剩余寿命预测方法
Safety evaluation and residual lifetime prediction of coke drums in delayed coking plant
摘要
Abstract
Coke drums in delayed coking plant are usually subjected to long-term combined loads caused by high temperature gradient and mechanical forces during the normal operating period.Under these long-term alternating loads, the coke drums may generate increasing gourd-shaped deformations locating in the middle height of tower, and cause crack initiation near the welding joint connecting the skirt and coke drum body.Therefore, how to predict the safety performance and residual lifetime of coke drum is always a difficult issue in academic and engineering fields.In this paper, a comprehensive evaluation method including risk assessment, stability analysis, and residual lifetime prediction of coke drum body is finally established using finite element method, and the critical positions are located in the mid height of the tower and the welding joint near the skirt.Particularly, the lifetime of coke drum is calculated by the methods of Manson-Coffin and S-N curves, respectively.This paper can provide fundamental supports for the risk assessment and life prediction of similar equipment in the oil refining unit.关键词
有限单元法/延迟焦化/焦炭塔/安全评估/寿命预测Key words
finite element method/delayed coking/coke drum/safety evaluation/lifetime prediction分类
能源科技引用本文复制引用
张伯君,业成,章彬斌,周昌玉,梁斌,崔强..延迟焦化装置焦炭塔安全评估与剩余寿命预测方法[J].石油与天然气化工,2017,46(2):105-111,7.基金项目
国家自然科学基金"工业纯钛室温蠕变及其含裂纹承压结构完整性评定"(51475223) （51475223）
国家质检总局科技项目"热处理工艺对锆-钛-碳钢三层复合板力学性能及耐腐蚀性能的影响"(2015QK265) （2015QK265）
南京市质监局科技项目"延迟焦化装置焦炭塔风险评估和剩余寿命预测方法研究"(kj2015011). （kj2015011）
