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
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.
يجري تحميل الحساب…
جرى هذا الحساب داخل متصفحك. لم يُرسل أي رقم أدخلته إلى أي جهة، ولم يُحفظ شيء.
كيف تُحسب
- Liquid: ΔP = f·(L/D)·ρv²/2 with f from an iterated Colebrook–White solution, plus the elevation head.
- Gas: Weymouth, Panhandle A and Panhandle B, each solved for the outlet pressure from the squared-pressure form, with z at the average line pressure.
- Standard conditions are 60 °F and 14.73 psia; length is converted to miles internally because that is what the gas equations are written in.
- The API RP 14E erosional velocity limit is reported for the gas case so the rate can be checked against it.
أين تتوقف عن الصحة
Single phase, isothermal, and — for gas — no elevation profile. Real gathering lines carry liquid, and a two-phase line with holdup in its low points can have several times this pressure drop, arriving in slugs the steady-state number cannot describe. The gas equations also assume fully turbulent flow and hide everything they do not model inside an efficiency factor, which is why three of them are shown: when Weymouth and Panhandle B disagree by twenty per cent, that disagreement is the honest uncertainty, not a reason to pick the convenient one.
القدرة التي تؤتمت هذا العمل
- PR-14تحسين شبكة التجميعOptimises the whole surface network together — chokes, routing and separator pressures — rather than one well at a time.
- 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.
أدوات ذات صلة
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.
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.