Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (4)
SAE JA1011_202411 — Evaluation Criteria for Reliability-Centered Maintenance Processes
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
GB/T 7190.2-2018
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
轴承失效(磨损/剥落)RPN 54 · High
Failure Mechanism
轴承失效(磨损/剥落) 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
振动趋势监测
油液分析
对中/平衡复核
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
微生物腐蚀RPN 54 · High
Failure Mechanism
微生物腐蚀 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
壁厚测量(UT)
目视/内窥镜检查
腐蚀速率监测
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
润滑失效RPN 54 · High
Failure Mechanism
润滑失效 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
振动趋势监测
油液分析
对中/平衡复核
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
冷却水腐蚀RPN 54 · High
Failure Mechanism
冷却水腐蚀 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
壁厚测量(UT)
目视/内窥镜检查
腐蚀速率监测
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
不对中RPN 54 · High
Failure Mechanism
不对中 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
振动趋势监测
油液分析
对中/平衡复核
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
转子不平衡RPN 54 · High
Failure Mechanism
转子不平衡 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
振动趋势监测
油液分析
对中/平衡复核
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
冲蚀/冲刷腐蚀RPN 54 · High
Failure Mechanism
冲蚀/冲刷腐蚀 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
壁厚测量(UT)
目视/内窥镜检查
腐蚀速率监测
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
齿轮磨损/点蚀RPN 54 · High
Failure Mechanism
齿轮磨损/点蚀 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
振动趋势监测
油液分析
对中/平衡复核
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
均匀/局部减薄(通用减薄)RPN 54 · High
Failure Mechanism
均匀/局部减薄(通用减薄) 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
壁厚测量(UT)
目视/内窥镜检查
腐蚀速率监测
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
大气腐蚀RPN 54 · High
Failure Mechanism
大气腐蚀 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
壁厚测量(UT)
目视/内窥镜检查
腐蚀速率监测
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
联轴器失效RPN 54 · High
Failure Mechanism
联轴器失效 驱动材料退化/功能失效
How to Detect
Online monitoring · Detection rate 80% ;Interval by RBI
Mitigation (What to Do)
振动趋势监测
油液分析
对中/平衡复核
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
Structural Corrosion / Wood Grid DecayRPN 45 · Medium
Inspection/offline · Detection rate 55% ;Interval by RBI
Mitigation (What to Do)
Periodic structural inspection
Packing replacement
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (4)
SAE JA1011_202411 — Evaluation Criteria for Reliability-Centered Maintenance Processes
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
GB/T 7190.2-2018
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗
结垢/堵塞RPN 45 · Medium
Failure Mechanism
结垢/堵塞 驱动材料退化/功能失效
How to Detect
Inspection/offline · Detection rate 60% ;Interval by RBI
Mitigation (What to Do)
监测压差/流量
定期清洗/化学清洗
检查堵塞物
RCM Strategy
CBMOn-Condition Maintenance
Interval: High risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Engineering-inferred (not measured history); confirm with equipment owner before execution
Standards (6)
GB/T 7190.2-2018
GB 50102
API 580 — Risk-Based Inspection
ISO 14224:2016 — Petroleum, petrochemical and natural gas industries — Collection and exchange of reliability and maintenance data for equipment
API RP 571
GB/T 50050
Lessons Learned (1)
CCPS-BEACON-2025-10CCPS2013Fatalities 29 · Injuries 30 · Fire/Explosion Refinery Cooling Tower Explosion and Fire (CCPS Process Safety Beacon; 2013 India refinery case) Root cause: Heat-exchanger tube-bundle corrosion leak allowed hydrocarbons into cooling water; no vent/gas detection at cooling-tower high point; isolation and shutdown-work rules not followed during commissioning; contractor unfamiliar with petrochemical hazards. Official source ↗