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Equipment SP-101
FM stator_elastomer_wear
ISO 14224 mode
Source synthetic + standards-based engineering estimate (ISO 14224 / API 676 / API 674 framework)
定子胶套磨损(单螺杆/ Progressive Cavity)
SP-101 · 螺杆泵/齿轮泵/凸轮泵 (Rotary Positive Displacement Pump)
Related equipment → SP-101
0.80Source conf.
—Evidence conf.
ISO 14224 mode
1Failure Mechanism
Function:弹性定子与转子形成密闭腔输送高粘/含固介质
Failure cause:磨粒磨损或介质温度/化学超胶套耐受致弹性体失效
Damage mechanism：弹性体在磨粒与超温/超化学下发生磨耗与老化失效
2Source Basis (where this FM comes from)
synthetic + standards-based engineering estimate (ISO 14224 / API 676 / API 674 framework)
Source confidence 0.80: this FM is derived from the ontology KB and cross-validated by synthetic + standards-based engineering estimate (ISO 14224 / API 676 / API 674 framework).
3Evidence Chain (supporting basis)
This FM has no offline curated evidence text; it is derived from the ontology KB and cross-validated by the listed standard clauses and related accident investigations.
Governing standards (evidence)：std:API 676 — Rotary Positive Displacement Pumps · 机理级工程估计, 非实测; 引用 governing standard 作为分类出处
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 676ISO 14224:2016API 580GB/T 7784GB/T 10886SH/T 3140ISO 13372GB/T 6075SAE JA1011_202411GB/T 28267
No separate clause reference.
6Derived Analysis (seeded from this FM)
6/3/3FMEA Sev/Occ/Det
0.22RBI λ
0.6Monitor pdet
6 月Insp. int.
Current tasks:监测排量下降 | 检查定子内表面 | 取样分析介质温度/腐蚀性
RCFA incident:定子弹性体磨损导致排量下降与内漏, 后果类型 Operational, 严重度 6
7RCM Maintenance Decision (strategy landing)
RTFDesign Modification / Inspection Task
Recommended task材质复检 + 无损检测 + 设计/材质升级整改(RTF); 标定/零点-跨度校验 + SIL Proof test + 阀门行程试验 + 变更管理; 绝缘/电气试验 + 继电保护定值校核 + 操动机构特性测试; 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; 温度/红外热成像监测, 超温报警与根因排查
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; electrical; erosion; instrument; material; overheat
Governing standardsAPI 510API 530API 570API 571API 579API 581ASME VIIIGB/T 14285GB/T 21109IEC 60034IEC 61511IEEE C57ISA 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。