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Equipment B-201A
FM fm_2
ISO 14224 mode STD Structural deficiency
Source OPC Ontology KB
Corrosion / Erosion
B-201A · Fan / Blower
Related equipment → B-201A
0.75Source conf.
0.80Evidence conf.
STDISO 14224 mode
1Failure Mechanism
Function:实现设备功能
Failure cause:介质中含有腐蚀性气体或液体；气流中夹带固体颗粒；叶轮表面防护层失效
2Source Basis (where this FM comes from)
OPC Ontology KBCSB Accident DBQuant benchmark
Source confidence 0.75: 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：Numerical simulation of solid particle erosion in centrifugal compressor impeller (2013); Control valve cavitation and erosion analysis (2025, cited 11)
Evidence ref code：S2:b58d27035fc2a169
Evidence conf.：0.8 · Evidence source：Industry consensus
⚠ The evidence ref code S2:b58d27035fc2a169 is an internal index code of this KB, for tracing back to the offline curated corpus; it is not a public doi.org link, hence no hyperlink is provided.
4Related Real Accidents (traceable to accident cards)
This FM is recorded in 1 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 (15):
GB/T 7826-2012GB/T 27921-2011GB/T 44958-2024GB/T 4888-2008GB/T 29639-2020AQ/T 3034-2022API 581API 580API 754API 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
0.8Monitor pdet
4 月Insp. int.
Current tasks:每季度进行超声波测厚，当壁厚减薄超过15%时更换叶轮 | 每月目视检查叶轮表面，发现腐蚀坑深度超过1mm时安排修复 | 每周监测振动，当1倍频幅值增大超过20%时检查叶轮
RCFA incident:B-201A 发生腐蚀/冲蚀，严重程度 7，后果类型 Operational
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition Maintenance
Recommended task壁厚/型线超声测厚 + 耐磨层状态检查, 视情修复或涂层; 无损检测(UT/VT/MT/PT), 按 API 581 RBI 风险定级设定检验间隔
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; erosion
Governing standardsAPI 510API 570API 571API 581
⚠ 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。