MEMORIAL

MEMORIAL DE CALCULORESERVATRIO

SUMRIO:

1. Documentos

2. Concluses

3. Clculos

Observaes sobre materiais3.1Casco Cilndrico3.2Tampo Toro- Esfrico3.3Tampa Plana3.4Flange Reversa3.5Volume do reservatrio3.6Presso de Teste Hidrosttico3.7

CLASSIFICAO NR-13CLASSE:leo/Ar Comprimido - Classe CGRUPO :Presso Maxima de Operao : 1.43MpaVolume Geomtrico Interno:51lP X V =0.07293581Flange design bolt load W=0,5 * (Am+Ab)*SaW=131389.5N

MOMENT - OPERATION CONDITIONForcesHydrostatic end force on area inside of flangeHD= 0,785 * B^2 * PHD=36370.62

Gasket load HG= Wm1 - HHG=35822Dif, total hydros. end force and the hydorstatic forceon area inside flange HT= H - HDHT=13844

Lever armsMomentshd= (C-B)/2hd=17.5HD*hD=636485.85hG= (C-G)/2hG=1.75HG*hG=62688.198573ht=(hD+hG)/2ht=9.625HT*hT=133244.334660938

Absolute value of the sum Mo=832418.383233937Nmm

MOMENT - SEATING CONDITIONForce HG=WForce=35822Lever arm hG= (C-G)/2hG=1.75MomentMa=HG*hgMa=62688.198573

THICKNESSt=Joint efficiency E=1Attach. factor C=0.3

a) Operating Condition

to=G*((C*P/Sfo*E)+(1,9*Wm1*hG/Sfo*E*G^3))^0,5to=11.78

b) Gasket seating

ta=(1,9*W*hG/Sfa*E*G^3)^0,5ta=3.54

t=11.78mmmax to or tat+c+gv13.78mmmin required thicknessTad33mmtotal thickness

B180C215A240gv2Gi183Go240

T33

3.5 FLANGE REVERSAAsme Sec VIII Div 1- App.2 Equipm. :VesselPartReverse Flange

Design Data Pressure: P=1.43MpaTemperature :120Ccorrosion1mmFlange MaterialAS-36Bolt MaterialAS-36Allowable stressesat design temp.at ambient temp.FlangeSfo=148Sfa=165MpaBoltSo=148Sa=165MPa

GasketMaterial:NA-1002Gasket unit seating loady=11MpaGasket widthN=28.5mmGasket factor (tab. 22-5.2)m=2wBasic Gasket seating widthbo=14.25mm(N/2)b =9.43(6) col I

Gasket inside diam.Gi=183Gasket outside diam.Go=240Gasket diam.(Gi+Go/2)G=211.5

Total hydrostatic force H=3,14 * G2 * P/400H=50214NTotal joint contact load HP=2*3,14*b*G*m*PHP=35822N

Minimum required bolt load oper. Cond. Wm1=H+HPWm1=86036Minimum required bolt load gasket seat Wm2=b*3,14*G*yWm2=68888Wm1/So581Wm2/Sa418

Total required cross sectional arrea of boltsAm - larger of Wm1/So or Wm2/S2Am=581mm2

Number of boltsn=12Bolt diameterM12Root area of single bolt84.3mm2

Total bolt root areaAb1011.6> Am581Flange design bolt load W=0,5 * (Am+Ab)*SaW=131389.5N

MOMENT - OPERATION CONDITIONForcesHydrostatic end force on area inside of flangeHD= 0,785 * B^2 * PHD=97689.91375

Gasket load HG= Wm1 - HHG=35822Dif, total hydros. end force and the hydorstatic forceon area inside flange HT= H - HDHT=-47476

Lever armsMomentshd= (C-B)/2hd=17.5HD*hD=1709573.490625hG= (C-G)/2hG=1.75HG*hG=62688.198573ht=(C-(B+G)/2)/2ht=-19.125HT*hT=907973.269551562

Absolute value of the sum Mo=2680234.95874956Nmm

MOMENT - SEATING CONDITIONForce HG=WForce=35822Lever arm hG= (C-G)/2hG=1.75MomentMa=HG*hgMa=62688.198573

SHAPE CONSTANTSK=A/B'K=1.64YY=6.50Fig. 2.7.1alphar=(1+(0,668(K+1)/Y))/K^2alphar=0.47Yr= Y alpharYr=3.08

THICKNESStCF=1Required thickness t=(Y*Mo*CF/(Sfo*B))^0,5t=19.98mmTotal thickness t+c+gvt=20.98mmAdopted thicknessTad=33mm

Go240Gi183B'180C215A=B295gv0

3.6 VOLUME DO RESERVATRIO DE AR

O volume total do reservatrio ser a soma dos volumes do casco cilndrico e do tampo torisfrico

Volume do cilindro0.046m3Volume dos tampos0.0046m3

Volume total=0.0506m350.6litros

3.7 MAX. PRESSO DE TESTE HIDROSTTICO

Presso teste hidrosttico do cilindro4.28MpaPresso teste hidrosttico do tampo2.65MPa

Portanto a presso de teste hidrosttico ser 2,65 Mpa, limitada pelo tampo

3.8 PRESSES DE TRABALHO E DE TESTE

Presso de trabalho 1.53MpaPrsso de teste hidrosttico1.99Mpa

Folha &P de &N