PV Elite按GB150-2011材料设计的方法找到了
Element From Node 10
Element To Node 20
Element Type Elliptical
Description
Distance "FROM" to "TO" 40.000 mm.
Inside Diameter 2500.0 mm.
Element Thickness 20.000 mm.
Internal Corrosion Allowance 3.0000 mm.
Nominal Thickness 0.0000 mm.
External Corrosion Allowance 0.0000 mm.
Design Internal Pressure 600.00 KPa.
Design Temperature Internal Pressure 200 C
Design External Pressure 0.0000 KPa.
Design Temperature External Pressure 25 C
Effective Diameter Multiplier 1.2
Material Name Q345R
Allowable Stress, Ambient 185.00 N./mm?
Allowable Stress, Operating 170.00 N./mm?
Material Density 0.007850 kg./cm
Elliptical Head Factor 2.0
Element Thickness, Pressure, Diameter and Allowable Stress :
| | Int. Press | Nominal | Total Corr| Element | Allowable | From| To | + Liq. Hd | Thickness | Allowance | Diameter | Stress(SE)| | | KPa. | mm. | mm. | mm. | N./mm? | --------------------------------------------------------------------------- 10| 20| 600.00 | ... | 3.0000 | 2500.0 | 170.00 | 20| 30| 600.00 | ... | 3.0000 | 2500.0 | 170.00 | 30| 40| 600.00 | ... | 3.0000 | 2500.0 | 170.00 | Element Required Thickness and MAWP : | | Design | M.A.W.P. | M.A.P. | Minimum | Required | From| To | Pressure | Corroded | New & Cold | Thickness | Thickness | | | KPa. | KPa. | KPa. | mm. | mm. | ---------------------------------------------------------------------------- 10| 20| 600.000 | 2020.48 | 2660.02 | 18.0000 | 7.41010 | 20| 30| 600.000 | 2020.48 | 2641.03 | 18.0000 | 7.43200 | 30| 40| 600.000 | 2020.48 | 2660.02 | 18.0000 | 7.41010 | Minimum 2020.485 2641.020 MAWP: 2020.485 KPa., limited by: Elliptical Head. Internal Pressure Calculation Results : ASME Code, Section VIII, Division 1, 2010, 2011a Elliptical Head From 10 To 20 Q345R , UCS-66 Crv. A at 200 C Required Thickness due to Internal Pressure [tr]: = (P*D*Kcor)/(2*S*E-0.2*P) Appendix 1-4(c) = (600.000*2506.0000*0.997)/(2*170.00*1.00-0.2*600.000) = 4.4101 + 3.0000 = 7.4101 mm. Max. Allowable Working Pressure at given Thickness, corroded [MAWP]: = (2*S*E*t)/(Kcor*D+0.2*t) per Appendix 1-4 (c) = (2*170.00*1.00*15.0000)/(0.997*2506.0000+0.2*15.0000) = 2039.043 KPa. Maximum Allowable Pressure, New and Cold [MAPNC]: = (2*S*E*t)/(K*D+0.2*t) per Appendix 1-4 (c) = (2*185.00*1.00*18.0000)/(1.000*2500.0000+0.2*18.0000) = 2660.015 KPa. Actual stress at given pressure and thickness, corroded [Sact]: = (P*(Kcor*D+0.2*t))/(2*E*t) = (600.000*(0.997*2506.0000+0.2*15.0000))/(2*1.00*15.0000) = 50.023 N./mm? Straight Flange Required Thickness: = (P*R)/(S*E-0.6*P) + c per UG-27 (c)(1) = (600.000*1253.0000)/(170.00*1.00-0.6*600.000)+3.000 = 7.432 mm. Straight Flange Maximum Allowable Working Pressure: = (S*E*t)/(R+0.6*t) per UG-27 (c)(1) = (170.00 * 1.00 * 15.0000 )/(1253.0000 + 0.6 * 15.0000 ) = 2020.485 KPa. Factor K, corroded condition [Kcor]: = ( 2 + ( Inside Diameter/( 2 * Inside Head Depth ))2)/6 = ( 2 + ( 2506.000/( 2 * 628.000 ))2)/6 = 0.996819 MDMT Calculations in the Knuckle Portion: Govrn. thk, tg = 18.000 , tr = 13.657 , c = 3.0000 mm. , E* = 1.00 Stress Ratio = tr * (E*)/(tg - c) = 0.910 , Temp. Reduction = 5 C Min Metal Temp. w/o impact per UCS-66 9 C Min Metal Temp. at Required thickness (UCS 66.1) 4 C MDMT Calculations in the Head Straight Flange: Govrn. thk, tg = 18.000 , tr = 13.776 , c = 3.0000 mm. , E* = 1.00 Stress Ratio = tr * (E*)/(tg - c) = 0.918 , Temp. Reduction = 5 C Min Metal Temp. w/o impact per UCS-66 9 C Min Metal Temp. at Required thickness (UCS 66.1) 5 C Cylindrical Shell From 20 To 30 Q345R , UCS-66 Crv. A at 200 C | 
发表于 1970-1-1 08:00:00
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