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Equipment K-201A
FM o
ISO 14224 mode OTH Other
Source OPC Ontology KB
O-ring Aging
K-201A · Centrifugal compressor
Related equipment → K-201A
0.75Source conf.
0.85Evidence conf.
OTHISO 14224 mode
1Failure Mechanism
Function:通过微米级气膜实现非接触密封
Failure cause:温度超过O型圈耐温极限；化学介质腐蚀；O型圈安装损伤或压缩永久变形
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：None
Evidence conf.：0.85 · Evidence source：API_682
Governing standards (evidence)：ima://7479345845137275/wechatarticle_11035ae55c1b08ddb9e6d8bfbece61fe_4baf3822af099542c2a396ec6e994d6b7479345845137275 — 压缩机防喘振系统完整技术方案ima://7479345845137275/pdf_11035ae55c1b08ddb9e6d8bfbece61fe_09ac5889eb7d93d00ced858558ecc00c7479345845137275 — 空气压缩机RCM维护方案ima://7479345845137275/pdf_11035ae55c1b08ddb9e6d8bfbece61fe_cb149c9742b85d0a68be7323645916837479345845137275 — 空气压缩机FMEA分析报告
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 (16):
GB/T 7826-2012GB/T 27921-2011GB/T 44958-2024GB/T 4888-2008GB/T 29639-2020AQ/T 3034-2022API 581API 580API 571API 754API 689API 755ISO 14224:2016ISO 20815:2018IEC 61511:2016ISO 31000:2018
6Derived Analysis (seeded from this FM)
6/8/3FMEA Sev/Occ/Det
0.52RBI λ
0.55Monitor pdet
4 月Insp. int.
Current tasks:每2年更换所有O型圈 | 每次检修时检查O型圈硬度，硬度变化超过10%更换 | 记录O型圈安装日期和批次
RCFA incident:K-201A 发生O型圈老化，严重程度 6，后果类型 Safety
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition Maintenance
Recommended task温度/红外热成像监测, 超温报警与根因排查; 沉降/变形观测 + 支撑/基础评估; 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; deformation; overheat; seal_leak
Governing standardsAPI 510API 530API 570API 571API 579API 581API 653API 682厂家规范
⚠ 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。