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Equipment BL-201A
FM fm_6
ISO 14224 mode OHE Overheating
Source OPC Ontology KB
Superheater Tube Rupture
BL-201A · Boiler
Related equipment → BL-201A
0.82Source conf.
0.85Evidence conf.
OHEISO 14224 mode
1Failure Mechanism
Function:将饱和蒸汽过热
Failure cause:蒸汽温度控制异常导致超温；管内结垢或异物堵塞；材料老化或焊接缺陷
Damage mechanism：长期/短期过热（overheat, creep-assisted）+ 结垢/材料老化/焊接缺陷 → 过热器爆管
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：Material characteristics and failure prediction of SA213 Superheater Boiler tube (2024); Failure Investigation of Superheater Tubes in Utility Boiler (2025)
Evidence ref code：S2:b2237d401aa42ae2
Evidence conf.：0.85 · Evidence source：Industry consensus
⚠ The evidence ref code S2:b2237d401aa42ae2 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)：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-571 — API 571 — Damage Mechanisms Affecting Fixed Equipment · 损伤机理归类框架std:DL-T-939 — DL/T 939-2016 — 火力发电厂锅炉受热面管事故分析与预防 · 受热面管事故预防std:API-579 — API 579-1/ASME FFS-1 — Fitness-For-Service · 剩余寿命/FFS（蠕变 Omega、Part 10）
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)
9/4/3FMEA Sev/Occ/Det
0.34RBI λ
0.8Monitor pdet
4 月Insp. int.
Current tasks:每日监测蒸汽温度及趋势分析 | 每半年进行壁厚测量和金相检查 | 每月检查管壁温度监测数据
RCFA incident:BL-201A 发生过热器爆管，严重程度 9，后果类型 Safety/Environmental
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition Maintenance
Recommended task按压差/效率监测设定清洗周期 + 过滤/防堵维护; 温度/红外热成像监测, 超温报警与根因排查; 标定/零点-跨度校验 + SIL Proof test + 阀门行程试验 + 变更管理; 蠕变测量/金相监测, 按剩余寿命管理
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=creep; fouling; instrument; overheat
Governing standardsAPI 530API 571API 579ASME IIIGB/T 21109IEC 61511ISA 84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。