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Equipment BL-201A
FM fm_2
ISO 14224 mode OTH Other
Source OPC Ontology KB
Steam Separator Failure -> Wet-steam Carryover
BL-201A · Boiler
Related equipment → BL-201A
0.82Source conf.
0.80Evidence conf.
OTHISO 14224 mode
1Failure Mechanism
Function:实现设备功能
Failure cause:分离器内部构件腐蚀或脱落；蒸汽负荷波动过大；安装或维修不当造成密封失效
Damage mechanism：汽水分离构件腐蚀/机械脱落（mechanical integrity loss）+ 密封失效致蒸汽品质下降（steam wetness/carryover）
2Source Basis (where this FM comes from)
OPC Ontology KBCSB Accident DBQuant benchmark
Source confidence 0.82: this FM is derived from the ontology KB and cross-validated by OPC Ontology KB·CSB Accident DB·Quant benchmark.
3Evidence Chain (supporting basis)
Evidence text：None
Evidence conf.：0.8 · Evidence source：Industry consensus
Governing standards (evidence)：std:ASME-BPVC-I — ASME BPVC Section I — Rules for Construction of Power Boilers · 锅筒/受热面建造与检验规则（PG-19 等）std:API-572 — API 572 — Inspection Practices for Pressure Vessels · 压力容器检验实践std:GB-T-16507 — GB/T 16507 — 水管锅炉 · 中国水管锅炉标准
4Related Real Accidents (traceable to accident cards)
This FM is recorded in 2 real accident investigation(s); tap the report no. to open the corresponding accident lesson card.
5Applicable Standards & Clauses
API 580GB/T 7826-2012ISO 14224:2016SAE JA1011_202411
Standard clause references (19):
GB/T 7826-2012GB/T 27921-2011GB/T 44958-2024GB/T 4888-2008GB/T 29639-2020AQ/T 3034-2022API 581API 580API 510API 571API 579-1/ASME FFS-1API 754API 576API 689API 755ISO 14224:2016ISO 20815:2018IEC 61511:2016ISO 31000:2018
6Derived Analysis (seeded from this FM)
7/4/3FMEA Sev/Occ/Det
0.34RBI λ
0.55Monitor pdet
4 月Insp. int.
Current tasks:每日监测蒸汽钠离子或电导率 | 每周检查汽包水位波动 | 每季度检查分离器内部状态
RCFA incident:BL-201A 发生汽水分离器失效→蒸汽带水，严重程度 7，后果类型 Safety
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition Maintenance
Recommended task无损检测(UT/VT/MT/PT), 按 API 581 RBI 风险定级设定检验间隔; 泄漏监测 + 密封/填料定期更换, 螺栓热紧固
Suggested intervalHigh risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Decision basis机理类别=corrosion; seal_leak
Governing standardsAPI 510API 570API 571API 581API 682
⚠ This decision is engineering-inferred by RCM logic from the damage mechanism / root cause / failure cause — it is not derived from measured site history. Confirm with the equipment owner and process before execution.
⚠ 本卡技术正文（功能 / 致因 / 损伤机理 / RCFA 叙事）保留中文原文——依可信 AI 红线，自由技术文本不自动机翻、不编造英文译文。UI、设备类型、FM 名、ISO 码、标准号均为英文。