EXP2016-06-27 气体处理厂爆炸火灾，换热器失效为关键
换热器等静设备完整性不足导致烃泄漏爆炸
The mechanism code EXP shown on this card is the KB's internal damage-mechanism abbreviation (not an ISO 14224 code); it describes how the equipment failed. The 'ISO 14224 Mapping' block above maps it to the correct ISO functional failure code (which describes what the equipment failed to do) — these are two distinct dimensions in ISO 14224. The mechanism follows the narrative in the card body.
EVAP-C1-FM1焊缝应力腐蚀/裂纹 EVAP-C1-FM2管内结垢/结疤传热恶化 EVAP-C2-FM1管束点蚀穿孔 EVAP-C2-FM2分布不均→干壁过热 EVAP-C3-FM1分布孔堵塞 EVAP-C3-FM2不凝气积聚→传热下降 EVAP-C5-FM1压缩机喘振 COMP-C7-FM1Cavitation FPH-C1-FM1Impeller Wear FPH-C1-FM3电机过载 FPH-C1-FM4Fouling / Scaling FPH-C2-FM1管束腐蚀 FPH-C2-FM2磨蚀/磨损 FPH-C3-FM1固体堵塞 FPH-C3-FM2Cavitation FPH-C4-FM1测量漂移/导压管堵塞 ICS-C1-FM1传感器失效 ICS-C2-FM1控制逻辑失效/死机 ICS-C3-FM1通信中断 ICS-C3-FM2调节阀卡涩/失效 ICS-C4-FM1变频器故障→压缩机跳闸 ICS-C5-FM1联锁拒动 ICS-C6-FM1联锁误动→非计划停机 ICS-C6-FM2转子型线磨损 rotor_profile_wear转子接触擦伤 rotor_contact_score_mark滑动轴承缺陷 bearing_journal_defect止推轴承失效 bearing_thrust_failure油系统污染 oil_system_contamination油泵失效 oil_pump_failure中间冷却器结垢 intercooler_fouling吸气过滤器堵塞 suction_filter_clog排气温度过高 discharge_temp_high联轴器不对中 coupling_misalignment振动高（不平衡） vibration_high_unbalance气量调节失灵 capacity_control_malfunction内部增速齿轮失效 internal_gear_fail轴承失效（磨损/剥落） MECH-BEARING-WEAR结垢/堵塞 MECH-FOULING压缩机喘振 MECH-SURGE润滑失效 MECH-LUBRICATION-FAILURE不对中 MECH-MISALIGNMENT转子不平衡 MECH-UNBALANCE叶轮/叶片磨损 MECH-IMPELLER-WEAR冲蚀/冲刷腐蚀 MECH-EROSION机械疲劳 MECH-MECH-FATIGUE均匀/局部减薄（通用减薄） MECH-THINNING联轴器失效 MECH-COUPLING-FAILURE振动诱发疲劳 MECH-VIB-FATIGUE大气腐蚀 MECH-ATMOS电偶腐蚀 MECH-GALVANIC