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Equipment T-101
FM trim_erosion
ISO 14224 mode STD Structural deficiency
Source OPC Ontology KB
阀芯冲蚀 (Trim Erosion)
T-101 · Distillation column
Related equipment → T-101
0.75Source conf.
0.75Evidence conf.
STDISO 14224 mode
1Failure Mechanism
Function:塔底/回流罐液位自动调节
Failure cause:流体中含固体颗粒或腐蚀性介质；压差过大导致流速过高；阀芯材质硬度不足
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.：0.75 · Evidence source：academic_study
⚠ 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.
Governing standards (evidence)：ima://7458030677405755/word_11035ae55c1b08ddb9e6d8bfbece61fe_9d8b149bd2f3be727c6d967efbf962997458030677405755 — ITP-2 Pressure Vessels（杜邦制造质量检验测试计划）
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 571API 579-1/ASME FFS-1API 580API 581-2025GB/T 44692GB/T 7826-2012ISO 14224:2016SAE JA1011_202411
Standard clause references (22):
GB/T 7826-2012GB/T 27921-2011GB/T 36894-2018GB/T 44958-2024GB/T 37243-2019GB/T 4888-2008GB/T 29639-2020AQ/T 3034-2022API 581API 580API 510API 570API 571API 579-1/ASME FFS-1API 754API 576API 689API 755ISO 14224:2016ISO 20815:2018IEC 61511:2016ISO 31000:2018
6Derived Analysis (seeded from this FM)
5/6/3FMEA Sev/Occ/Det
0.46RBI λ
0.8Monitor pdet
4 月Insp. int.
Current tasks:定期检查阀芯冲蚀情况 | 更换冲蚀阀芯 | 优化流体速度或材质
RCFA incident:T-101 发生阀芯冲蚀 (Trim Erosion)，严重程度 5，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; 标定/零点-跨度校验 + SIL Proof test + 阀门行程试验 + 变更管理; 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; erosion; instrument; seal_leak
Governing standardsAPI 510API 570API 571API 581API 682GB/T 21109IEC 61511ISA 84
⚠ 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。