ترددات عيوب المحامل
BPFO, BPFI, BSF and FTF from bearing geometry and shaft speed, with the harmonics and the minimum spectrum Fmax you need to see them.
المرافق والسلامة الإنشائية
معدل التآكل والعمر المتبقي
Two thickness readings turned into a short-term and a long-term rate, a remaining life and the next inspection date API 510 and 570 would set.
يجري تحميل الحساب…
جرى هذا الحساب داخل متصفحك. لم يُرسل أي رقم أدخلته إلى أي جهة، ولم يُحفظ شيء.
كيف تُحسب
- Short-term rate = (previous − current) / interval. Long-term rate = (nominal − current) / years in service.
- The governing rate is the larger of the two, as the codes require.
- Remaining life = (current − minimum required) / governing rate.
- Next inspection = half the remaining life, capped at ten years.
المعايير التي تتحدثها
أين تتوقف عن الصحة
Two readings define a line, and corrosion is rarely a line. Under-deposit attack, MIC and CO₂ corrosion all accelerate once initiated, so a rate averaged over ten quiet years will under-predict a mechanism that started last year. The reading also has to be at the same condition monitoring location on the same grid point to mean anything — a 0.3 mm difference is inside the repeatability of a hand-held UT probe on a rough surface, which means a short interval can produce a rate that is entirely measurement noise.
القدرة التي تؤتمت هذا العمل
- FA-04التآكل وسلامة خطوط الأنابيبPredicts where a line is corroding fastest and how long it has left, so inspection and replacement go where the risk actually is.
- FA-05تخطيط الفحص القائم على المخاطرAllocates a fixed inspection budget to the equipment where failure would hurt most and is most likely, with the reasoning written down.
أدوات ذات صلة
المتانة المتبقية وفق B31G
A metal-loss defect assessed by both original and modified B31G, giving the failure pressure, the safe operating pressure and the longest defect your MAOP can carry.
سماكة جدار الأنبوب وأقصى ضغط تشغيل
Required wall thickness and maximum allowable operating pressure under B31.3, B31.4 or B31.8, with the class location, joint and temperature factors applied.
هبوط الضغط في خط الأنابيب
Single-phase liquid by Darcy–Weisbach with a real Colebrook friction factor, and gas by Weymouth with both Panhandle equations alongside it.