Top Banner

of 21

26 Pressure Vessel.

Oct 29, 2015

Download

Documents

mishtinil

Pressure Vessel Sizing Calculation
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript

Sheet4TL to TL =he =1942427he =194O/D =1000*R =1000*r =1001000968e =161750t =16Overall length,L =281512117.72Operating Wt, W=2TonActual Volume, V=2.26m3.VerticalINPUTOUTPUTCapacity:2m3.Shell thickness16mmGas :NitrogenNitrogenDished end thickness16mmOperating pressure:16kg/cm2(g)Hydrostatic test pressure:27.59kg/cm2(g)Design Pressure:20kg/cm2(g)Overall length2815mmOperating Temperature:500 CLength of Dished end,he194mmJoint efficiency:85%Length TL to TL :2427.4541585971mmOutside Diameter:1000mmActual Volume:2.26m3.Corrosion Allowance :1.5mmOperating weight :2TonWind Pressure:194.2kg/m2Check for Dimensions:OKRadiography of Butt Welds:10%Plate thickness for dished end:16mmDesign Code :BS:5500Design for Shell thickness:OKPressure Range of Cyclic Variation:10Check for Combined Loading:0No. of Cycles:1,000,000Cycles.Disgn Check of Shell thickness at Test Condition:OK-Type of Vessel:HorizontalCheck for Principal StressOK-INPUT TO BE VARIED BASED ON OUTPUT CONDITION:Inside Diameter of Vessel. I/D968mmInside knuckle Radius, r100mmEmpty weight of Vessel:1.51TonInside Spherical Radius, R1000mmWheather 100% 0r 10% Radiography Required?100% RADIOGRAPHY REQD.Material of Construction:SA 516 GR. 60SA 516 GR. 70SA 516 GR. 60SIZETHICKNESSNOZZLE DETAILS:153.73DESCRIPTIONMARKSIZEMATL.STDTHICKNESS(mm)RESULT203.91MANHOLEN1500ASTM A 10626.19OK254.55324.85PAD PLATE DETAILS for NOZZLE NECK N1:505.54Thickness of shell, t =16mm657.01Thickness of Pad Plate, p =20mm807.62Width of Pad Plate , w =100mm1008.56Value of H =119.5397423454mm1259.52Width of Pad Plate , w > H/2OK15010.97Thickness of Pad Plate, p H/2OKThickness of Pad Plate, p H/2OKThickness of Pad Plate, p H/2OKThickness of Pad Plate, pe1&e2013.0CHECK FOR PRINCIPAL STRESS:sq = pRi/e72.47N/mm2.sz = pRi2/(2Ri+e)e+W/p((2Ri+e)e 4M/p((2Ri+e)2esz1 =14.13N/mm2.sz1 =14.08N/mm2.T =0f1=0.5(sq +sz+{(sq-sz)2+4T2}0.5)f1=72.47N/mm2.f2=0.5(sq +sz-{(sq-sz)2+4T2}0.5)f2=14.13N/mm2.Membrane Stress Intencity:i) F1= f1-f258.33N/mm2.ii)F2= f1+0.5p73.47N/mm2.iii)F3= f2+0.5p15.13N/mm2.F= Maximum of F1, F2 & F373.47N/mm2.F< Allowable Stress ValueOK14.0DESIGN CHECK FOR SHELL THICKNESS AT TEST CONDITIONS:Inside Dia , Di=968mmOutside Dia, Do =1000mmHydrotest pressure, Pt =27.59kg/cm2.gHydrostatic Head , Ph =2815mm=0.28kg/cm2.gTotal Pressure, P=Pt+Ph27.87kg/cm2.g=2.79N/mm2.f=PDi/2e+P/2102.37N/mm2.Yield Stress of Material =260N/mm2.90% of Yield Stress =234N/mm2.f