← Back to KB navigation
Equipment H-101
FM tc_failure
ISO 14224 mode OTH Other
Source OPC Ontology KB
热电偶故障 (TC Failure)
H-101 · fired_heater
Related equipment → H-101
0.82Source conf.
0.65Evidence conf.
OTHISO 14224 mode
1Failure Mechanism
Function:持续引燃主燃烧器
Failure cause:高温氧化导致热电极材料劣化；绝缘层破损引起短路；机械振动导致接线松动或断裂
Damage mechanism：热电偶高温氧化/绝缘劣化（TC element degradation）+ 机械振动断线
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.：0.65 · Evidence source：OEM_manual
Governing standards (evidence)：std:API-560 — API STD 560 — Fired Heaters for General Refinery Service · 管式加热炉设计std:API-570 — API 570 — Piping Inspection Code · 工艺管道检验
4Related Real Accidents (traceable to accident cards)
This FM is recorded in 3 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 (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)
7/5/2FMEA Sev/Occ/Det
0.34RBI λ
0.8Monitor pdet
4 月Insp. int.
Current tasks:定期校准热电偶 | 检查绝缘电阻 | 更换老化或损坏的热电偶
RCFA incident:H-101 发生热电偶故障 (TC Failure)，严重程度 7，后果类型 Safety
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition Maintenance
Recommended task绝缘/电气试验 + 继电保护定值校核 + 操动机构特性测试; 温度/红外热成像监测, 超温报警与根因排查; 振动频谱分析 + 动平衡 + 激光对中, 状态监测趋势管理
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=electrical; overheat; vibration
Governing standardsAPI 530API 670API 684GB/T 14285IEC 60034IEEE C57ISO 10816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。