ASME支腿计算

Design Calculation

ITEM NAME:xxxxxxxxxxxxxx DWG.NO.xxxxxxxxxxxxxx REVISION:x

Date:Date:Date:

PREPARED BY ：REVIEWED BY ：APPROVED BY ：

CONTENT

1Loadings Considered3 2Vessel Technology Parameters4 3Design Data4 Required Thickness of Ellipsoidal Head

44 5Required Thickness of Shell5 6Opening Reinforcement Calculation5 7Required Nozzle Thickness Under Internal Pressure 9 8Impact Test Exemption Evaluation10 9 Post Weld Heat Treatment Exemption Evaluation11 10Check for Flange11 11 Check Inspection Openings11 12Standard Hydrostatic Test11 13Leg Design Calculation 12 14Lifting Lug Design Calculation 15

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APPLIES ITEM YES (a) External pressure NO (b) Weight of the vessel

YES (b) Weight of normal condition under operating condition YES (b) Weight of normal condition under test condition

YES (c) Superimposed static reactions from weight of attached equipment NO (d) The attachment of internals

NO (d) The attachment of vessel supports (saddles, lifting lugs) YES (e) Cyclic and dynamic reactions due to pressure NO (e) Cyclic and dynamic reactions due to thermal variations NO (e) Cyclic and dynamic reactions due to equipment mounted on a vessel NO (e) Cyclic and dynamic reactions due to mechanical loadings NO (f) Wind reactions NO (f) Snow reactions NO (f) Seismic reactions

NO (g) Impact reactions such as those due to fluid shock NO (h) Temperature gradients NO (h) Differential thermal expansions NO (i) Abnormal pressure

NO (j) Test pressure and coincident static head acting during the test

YES

1. Loadings Considered

◆ AS PER ASME CODE SECTION VIII , DIV.1,2015 UG-22 ◆ General Arrangement Drawing NO. (a) Internal pressure

2. Vessel Technology Parameters

Item Symbol Parameter Unit Remark Medium Compressed Air

MAWP MAWP1MPa

Static Head of Liquids0.02MPa For hydrostatic test Design Pressure P 1MPa

Hydrostatic test#NAME?MPa

Working temperature0~90℃

Design temperature Temp 93℃

MDMT MDMT-20℃

Shell Nominal thickness t3mm

Shell Inside Dimmeter D 400mm

Shell Material SA-240M 304

Shell Allowable Stress at design Temperature S 137MPa

Shell Allowable Stress At Ambient Sa 138MPa

Joint Efficiency of Shell,Shell to Head E1 0.85 Shell

E20.85 Shell to Head Joint NDT SPOT RT : A1,B1,B2UW-52 Corrosion Allowance C0 mm

Total Volume0.20m3

Vessel fully loading mass m270 kg

3. Design Data

3.1 Nozzle list

Line Size Schedule tn O.D.Material UNS TYPE Sn Function N1DN100/NPS410S 3.05 114.3SA-312M TP304S30400sml.137Medium Inlet N2DN100/NPS410S 3.05114.3SA-312M TP304S30400sml.137Medium Outlet N3DN20/NPT3/440S 2.8726.7SA-312M TP304S30400sml.137Vent N4DN20/NPT3/440S 2.8726.7SA-312M TP304S30400sml.137Drain

◆ The thickness of threading port N3~N4 is larger than schedules 10S, meet the requirement of SA-312M appendix.

3.2Main Material

Part Material

Shell&Head SA-240M 304 (II-D Metric p.86, ln.43)

Pipe SA-312M TP304 (II-D Metric p.90, ln. 9)

Flange SA-182M F304 (II-D Metric p. 86, ln. 32)

4. Required Thickness of Ellipsoidal Head

DESCRIPTION Symbol DATA Unit

Design Pressure P 1MPa

Inside Diameter of Head Di400 mm

Head Nominal thickness tn3mm

Head Finished (Minimum) Thickness t 2.4mm

Allowable Stress at design Temperature S 137MPa

Head Ratio D/2h Ar 2

Joint Effiency of Head E0.85

◆ Minimum thickness per UG-16 (b)