OTHFuel Gas Mix Drum 高液位满溢→石脑油经气相管进入锅炉/加热炉→着火
Fuel Gas Mix Drum 高液位/满溢 safeguards 缺失+报警泛滥+异常工况管理(ASM)不足
本卡记录码 OTH 即 ISO 14224:2016 功能失效码（描述「设备没做成什么」）。损伤机理（描述「怎么坏的」）见上方对接块。两者是 ISO 14224 的两个不同维度。
fm汽水分离器失效→蒸汽带水 fm_2起跳值偏移 fm_3阀座泄漏 fm_4炉管爆管 (Tube Rupture) tube_rupture管内结垢→过热 fm_5过热器爆管 fm_6高温氧化/蠕变 fm_7露点腐蚀穿孔 fm_8烧嘴结焦/堵塞 fm_9点火失败/熄火 fm_10汽蚀 fm_11机械密封泄漏 fm_12除氧不足→氧腐蚀 fm_13炉管蠕变/鼓包 (Creep/Bulging) creep_bulging炉管渗碳 (Carburization) carburization炉管氧化/剥皮 (Oxidation/Spalling) oxidation_spalling管内结焦 (Internal Coking) internal_coking热斑→局部过热 (Hot Spot) hot_spot回弯头减薄 (Bend Thinning) bend_thinning焊缝裂纹 (Weld Crack) weld_crack支架高温变形/断裂 (High-temp Failure) high_temp_failure氧化腐蚀 (Oxidation) oxidation露点腐蚀 (Dew Point Corrosion) dew_point_corrosion翅片脱落/积灰 (Fin Loss/Fouling) fin_loss_fouling翅片管冲蚀 (Erosion) erosion烧嘴堵塞 (Burner Tip Plugging) burner_tip_plugging火焰偏斜→舔管 (Flame Impingement) flame_impingement点火失败/熄火 (Ignition Failure) ignition_failure长明灯熄灭 (Pilot Outage) pilot_outage热电偶故障 (TC Failure) tc_failure烟囱腐蚀 (Stack Corrosion) stack_corrosion衬里脱落 (Lining Loss) lining_loss挡板卡涩 (Damper Sticking) damper_sticking执行机构故障 (Actuator Failure) actuator_failure叶轮积灰→不平衡 (Fan Imbalance) fan_imbalance轴承失效 (Bearing Failure) bearing_failure探头污染→误跳车 (Lens Fouling) lens_fouling电子单元故障 (Electronics Failure) electronics_failure阀座泄漏 (Seat Leakage) seat_leakage执行机构故障 (Actuator Failure) actuator_failure_2衬里脱落/开裂 (Refractory Spalling) refractory_spalling衬里减薄→炉壁超温 (Hot Spot on Shell) hot_spot_on_shell结垢/堵塞 MECH-FOULING保温层下腐蚀 MECH-CUI热疲劳 MECH-THERMAL-FATIGUE湿硫化氢损伤 MECH-WET-H2S蠕变与应力破裂 MECH-CREEP酸性水腐蚀 MECH-SOUR-WATER锅炉水/凝结水腐蚀 MECH-BWC高温硫化氢/氢腐蚀 MECH-HT-H2S高温氧化 MECH-OXIDATION硫化腐蚀 MECH-SULFIDATION冲蚀/冲刷腐蚀 MECH-EROSION硫氢化铵腐蚀 MECH-ABS均匀/局部减薄（通用减薄） MECH-THINNING烟气露点腐蚀 MECH-DEWPOINT大气腐蚀 MECH-ATMOS2022-01-I-OH · 数据取自 CSB 公开调查结论，由可靠性 AI 整理，仅作可靠性展示用途。 本卡案例来自公开事故调查报告，仅供学习参考，AIM 不背书、不保证其准确性。