|本期目录/Table of Contents|

[1]马欣,付晓君,余景刚,等.RBI技术应用于LNG设备上的改进研究[J].中国安全生产科学技术,2015,11(4):107-111.[doi:10.11731/j.issn.1673-193X.2015.04.017]
　MA Xin,FU Xiao-jun,YU Jing-gang,et al.Study on improvement for application of RBI technology in LNG equipment[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(4):107-111.[doi:10.11731/j.issn.1673-193X.2015.04.017]
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RBI技术应用于LNG设备上的改进研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年4期
页码:
107-111
栏目:
职业安全卫生管理与技术
出版日期:
2015-04-30

文章信息/Info

Title:
Study on improvement for application of RBI technology in LNG equipment
作者:
马欣1; 付晓君1; 余景刚2; 韩佳3
（1. 西南石油大学 机电工程学院，四川 成都 610500；2. 塔里木油田公司物资采办事业部，新疆 塔里木 841000；3. 塔里木油田公司库车勘探开发项目经理部，新疆 塔里木 841000）
Author(s):
MA Xin1;  FU Xiao-jun1;  YU Jing-gang2;  HAN Jia3
（1. School of Mechatronic Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China; 2. Procurement Department,Tarim Oilfield Company, Tarim Xinjiang 841000, China; 3. Kuche Exploration and Development Project Management Department, Tarim Oilfield Company, Tarim Xinjiang 841000, China）
关键词:
RBI; LNG设备; 脆性断裂; 夏比试验; 遗传算法
Keywords:
RBI;  LNG equipment;  brittle fracture;  Charpy test;  genetic algorithm
分类号:
X933.4
DOI:
10.11731/j.issn.1673-193X.2015.04.017
文献标志码:
A
摘要:
基于API581的风险评估技术(RBI)是近年来石化行业逐渐采用并得到认可的一种新的评估设备经济可行性和安全性的技术。但是由于LNG的温度一般低至-162℃，使得LNG设备在应用API581时受到了限制。低温脆性断裂是LNG设备需考虑的一项主要的失效模式，API在评估脆断损伤因子时的温度范围是-73~38℃。为了能够评估LNG设备在低温环境下的风险，通过遗传算法将温度扩展至-209℃。扩展得到的脆断损伤因子曲线同夏比冲击试验的冲击功随温度变化曲线的趋势基本一致，因此扩展的损伤因子可以满足低温环境下LNG设备的风险评估。
Abstract:
Recently, Risk-Based Inspection (RBI) technology based on API 581 has been gradually adopted and become a new technology to determine economic feasibility and safety of equipment in petrochemical plants. However, there are limitations of applying API 581 to LNG equipment because the temperature of LNG is usually under -162℃. Low temperature brittle fracture is a major failure mode of LNG equipment need to be considered, but API code considers the temperature range of about -73~38℃ to evaluate the brittle fracture damage factor. To evaluate the risk of LNG equipment in low temperature environment, the temperature region was extended to about -209℃ with genetic algorithm. The tendency of extended brittle fracture damage factor (BFDF) curve was similar with the curve of impact energy against temperature change in Charpy impact tests. Therefore, the extend BFDF can satisfy the risk assessment of LNG equipment in cryogenic environment.

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2015-04-30