制冷技术2025，Vol.45Issue(2)：89-94,6.DOI:10.3969/j.issn.2095-4468.2025.02.206
NH3/CO2制冷剂复叠制冷系统安全性评价分析
Safety Evaluation and Analysis of NH3/CO2 Refrigerant Cascade Refrigeration System
胡永胜 1郑明宇 1戎晔 1刘骏亚 1宁锐 1樊燕松1
作者信息
- 1. 合肥通用机械研究院有限公司,安徽 合肥 230031
- 折叠
摘要
Abstract
Hazard and operability(HAZOP)analysis,layer of protection analysis(LOPA)and the safety integrity level(SIL)risk reduction value methodology are employed to assess the safety of an ammonia/carbon dioxide cascade refrigeration system.By analyzing the potential risks,hazards and possible deviations during operation are identified,the effectiveness of existing safety control measures is assessed,and the risk reduction achieved is quantified.The HAZOP method effectively identifies potential hazards in the system;the LOPA method helps quantify risks and reduce the frequency of risks associated with independent protection layers;the SIL risk reduction value methodology provides a quantitative basis for evaluating the effectiveness of risk mitigation.The analysis results indicate that the risk reduction target for the evaporator side(ammonia refrigeration side)is 71,with a safety integrity risk reduction value of-0.14,necessitating the addition of safety equipment with a safety integrity level(SIL)of 1 to ensure system safety.It is also recommended that the safety evaluation and analysis of this refrigeration system be emphasized during the development of industry standards.关键词
NH3/CO2复叠制冷/危险与可操作性分析/保护层分析/安全完整性风险概率Key words
NH3/CO2 refrigerant cascade refrigeration/Hazard and operability analysis/Layer of protection analysis/Safety integrity risk probability reduction quotient分类
通用工业技术引用本文复制引用
胡永胜,郑明宇,戎晔,刘骏亚,宁锐,樊燕松..NH3/CO2制冷剂复叠制冷系统安全性评价分析[J].制冷技术,2025,45(2):89-94,6.
