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IZPISOV PROGRAMOV ENERGETSKEGA PRIROČNIKA |
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STATICNA KONTROLA CEVOVODOV V OBJEKTU KOL1 OD STEV. 1 DO 1
===================================================================
SPLOSNI PODATKI CEVOVODA STEV. 1
Material : St 35.8-I Tlak (bar ab) : 30.0 Temp.cevi (C): 300
Temp.montaze : 20 E hl (MN/mm2) :.1920 E vr (MN/mm2):.1783
S dop (N/mm2): 93.3 Razt (mm/m C) :1.290
GEOMETRIJA CEVOVODA
D zun (mm) : 114.3 Stena cevi(mm): 3.6 R loka (mm): 171
Pomik f.tocke : dx(mm)= 0 dy(mm)= 0 dz (mm)= 0
Prednapetost(%): 0
-------------------------------------------------------------------
Koordinate (m):
Tocka x y z x y z
1 0.00 0.00 0.00 2 10.00 0.00 0.00
3 10.00 10.00 0.00 4 10.00 10.00 10.00
5 20.00 10.00 10.00 6 20.00 20.00 10.00
15 50.00 50.00 40.00 16 50.00 50.00 50.00
17 60.00 50.00 50.00 18 60.00 60.00 50.00
-------------------------------------------------------------
SILE - MOMENTI - NAPETOSTI
Px(N)= 27 Py(N)= 27 Pz(N)= 27 Sp(N/mm2)= 43.1
-------------------------------------------------------------
Tocka Mx (Nm) My (Nm) Mz (Nm) Se (N/mm2) S (N/mm2)
1 FT 76 -178 94 8.1 40.1
2 74 90 174 15.0 47.0
17 90 74 174 15.0 47.0
18 FT -178 76 94 8.1 40.1
-------------------------------------------------------------
16 Maks 90 -190 93 16.2 48.2
=============================================================
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TRDNOSTNI IZRACUN NA NOTRANJI TLAK PO TRD 301
OBJEKT : BAZARA1
========================================================================
OSNOVNA CEV
Material: API 5L DN 80 Dzun (mm) 88.9 Stena (mm) 5.6
Tlak (bar) 105 Temp (C) 25 Sdop (N/mm2) 160
Kvalit.po DIN 1629, Bl.4 toleranca C1(mm) .56 korozija C2(mm) 1
Kvaliteta zvara Vn 1 Najmanjsa debelina stene po TRD 301 Sv(mm) 4.19
------------------------------------------------------------------------
Di*p 77.70 * 10.50
s= ------------- + C1 + C2 = ------------------- + .56 + 1 = 4.19 mm
(2*Sdop-p)*vn (2* 160-10.50)* 1
========================================================================
ODCEP
Kot psi 90 Material API 5L DN 80 Dzun (mm) 88.9
Stena (mm) 7.62 Sdop (N/mm2) 160 Strli v osnovno cev (mm) 0
Faktor f1 .8 toleranca C1 (mm) .762 korozija C2 (mm) 1
Napetosti po TRD 301 (N/mm2) 153.5 <Sdop 160
------------------------------------------------------------------------
Di= 77.70 Sv= 4.04 Dai= 77.18 Sao= 5.86 eG= 18.2 eA= 27.6 lA2= 0.0
Pogoj za podrocje I :SI =p*(ApI/(ASI+A'SI+f1*A''SI)+1/2) <Sdop(N/mm2)
SI = 10.50*( 3653/( 73+ 185+ .8* 0)+1/2) = 153.57 < 160 (N/mm2)
Pogoj za podrocje II:SII=p*(ApII/(ASII+A'SII+f1*A''SII)+1/2)<Sdop(N/mm2)
SII = 10.50*( 3653/( 73+ 185+ .8* 0)+1/2) = 153.57 < 160 (N/mm2)
========================================================================
CEVNI LOK
Lok 90 po DIN 2605 DN 80 Dzun(mm) 88.9 R(mm) 114.5 S(mm) 5.47
------------------------------------------------------------------------
B=R/Sv-Di/(2*Sv) Bl=B-(B exp2-2*R/Sv+Di/(2*Sv))exp.5
B = 114.5/ 4.20 - 77.7/(2* 4.20)= 18.03
Bl= 18.03 ( 18.03 exp2-2* 114.5/ 4.20+ 77.7/2* 4.20))exp.5 = 1.30
Minimalna debelina stene loka Sl=Bl*Sv cevi= 1.30* 4.20= 5.47 mm
========================================================================
NAPETOSTI, KI NASTOPIJO ZARADI NOTRANJEGA TLAKA, SO V DOVOLJENIH MEJAH !
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TRDNOSTNI IZRACUN NA NOTRANJI TLAK PO TRD 301/303/305 IN AD B5
OBJEKT : TEST1
========================================================================
CILINDRICNI DEL
Material: St 35.8-I DN 100 Dzun (mm) 2000 Stena (mm) 5
Tlak (bar) 6 Temp (C ) 200 Sdop (N/mm2) 123.3
Kvalit. po DIN 1629, Bl.4 toleranca C1(mm) .75 korozija C2(mm) 1
Vn 1 Najmanjsa debelina stene po TRD 301 Sv (mm) 6.60
------------------------------------------------------------------------
Di*p 1990.0 * 0.60
s= ------------- + C1 + C2 = ------------------- + .75 + 1 = 6.60 mm
(2*Sdop-p)*vn (2*123.3- 0.60)* 1
========================================================================
CEVNI LOK
Lok 90 po DIN 2605 DN 100 Dzun(mm) 2000 R(mm) 152.5 S(mm) 1687
------------------------------------------------------------------------
B=R/Sv-Di/(2*Sv) Bl=B-(B exp2-2*R/Sv+Di/(2*Sv))exp.5
B = 152.5/ 6.60 - 1990.0/(2* 6.60)= -127.61
Bl= 127.61-( -127.61 exp2-2* 152.5/ 6.60+1990.0/2* 6.60))exp.5 =255.62
Minimalna debelina stene loka Sl=Bl*Sv cevi=%255.62* 6.60=%1687.70 mm
========================================================================
IZBOCENO DNO PO TRD 303
Vrsta dna -PLITVO - rwi(mm) 2000 rki(mm) 308
Krogelni del Sv(mm) 6.35 Krajec Sk(mm) 11.1 Izbrana deb.stene 12 mm
------------------------------------------------------------------------
Krogelni del: Sv=1.1*rwi*((1+2*p/((2*Sdop-p)*Vn))exp.5-1)+C2
Sv=1.1*2000.0*((1+2* 0.6 / ((2* 0.0 0.6)*1.0))exp.5-1) +0.0= 6.36 mm
Krajec: Sk=p*Da*betak/(4*p*Sdop)+C2 (betak po TRD 303 - tabeli 16 in 17)
Sk= 0.60*2000.0* 4.19 / (4* 0.60*123.3) +1.0 = 11.19 mm
Pri izbrani debelini dna 12.00 mm je betak= 3.20
========================================================================
RAVNO DNO PO AD Merkblatt B5 oz. TRD 305
Uvarjena plosca S(mm) 70.7 (z ene strani) 56.7 (z obeh strani)
S=C*Di*(p/Sdop)exp.5 + C2 =0.50*1990.0*( 0.60 / 123.3)exp.5+ 1=70.7 mm
S=C*Di*(p/Sdop)exp.5 + C2 =0.40*1990.0*( 0.60 / 123.3)exp.5+ 1=56.7 mm
Vrednosti za C so vzete iz tabele 1 (AD B5)
------------------------------------------------------------------------
Plosca s krajci S(mm) 42.8 r min(mm) 50.0
S=C*Di*(p/Sdop)exp.5 + C2 =0.30*1990.0*( 0.60 / 123.3)exp.5+ 1=42.8 mm
Vrednost za C je vzeta iz tabele 1 (AD B5)
------------------------------------------------------------------------
Slepa prirobnica S(mm) 67.9 Dt(mm) 2100.0 Dd(mm) 2050.0
Dt - premer srednjice vijakov Dd - srednji premer tesnila
S=C*Di*(p/Sdop)exp.5 + C2 =0.47*1990.0*( 0.60 / 123.3)exp.5+ 1=67.9 mm
Vrednost za C je vzeta iz slike 4 (AD B5)
========================================================================
NAPETOSTI, KI NASTOPIJO ZARADI NOTRANJEGA TLAKA, SO V DOVOLJENIH MEJAH !
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TOPLOTNE IZGUBE CEVOVODOV
MEDIJ: PARA
p(bar abs)= 6.0 t(C)=158.8 cp(kJ/kgC)= 0.00 r(kJ/kg)=2084.0
Medij kondenzira ?(j/n) :j Linija ?(j/n) :n
ZRAK OZ. MEDIJ OKOLICE :
hitrost (m/s)=20.00 temperatura (C)= 8.0
REZULTATI : Deb. Izgube Izolacija Medij Kond.
Naziv G t/h Dzun l m s mm Q kW t1 C t2 C t2 C kg/h
-----------------------------------------------------------------------
1 20.0 60 100 32 3.90 12.60 12.60 158.80 6.8
2 10.0 100 2000 91 55.70 9.60 9.60 158.80 96.2
-----------------------------------------------------------------------
Skupaj izgube: 59.60 Skupaj kondenzat: 103.0
KONSTRUKCIJA IZOLACIJE :
Naziv Sloji Lambda W/mK Deb.sloja mm
-----------------------------------------------------------------------
1 1 Poliuretanska pena 0.030 30
2 Polietilenski plasc 0.430 2
-----------------------------------------------------------------------
2 1 Poliuretanska pena 0.030 87
2 Polietilenski plasc 0.200 4
-----------------------------------------------------------------------
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REGULACIJSKI IN VARNOSTNI VENTILI
DOLOCITEV REGULACIJSKIH VENTILOV V OBJEKTU MIRNA PO DIN/IEC 534
========================================================================
REGULACIJSKI KROG ST. 1 TRIPOTNI VENTIL MEDIJ:VODA
RO (KG/M3): 958 TEMP.(C): 100 TLAK (kPa): 200 TLAK kr (bar):221
PRETOK (l/h): 2426 PARNI TLAK (kPa): 101
PADEC TLAKA NA VENT.(kPa): 10 CEVOVOD (DN): 32 NAZ.TEMP(C):100 PN 16
------------------------------------------------------------------------
RACUNSKE VREDNOSTI
RACUNSKI Kv (m3/h): 7.59 Kvs (m3/h): 9.48 PRETOK NI OMEJEN
HIDRODINAMICNI HRUP PO VDMA 24422 : 18.98 dB(A)
FP :0.990 FL :0.900 FF :0.945
------------------------------------------------------------------------
IZBRANI VENTIL
FIRMA :IMP-ARIS PRIROBNICNI VENTIL:RV3 B 25-10
DN 25 Kvs (m3/h): 10.0 POGON :
========================================================================
DOLOCITEV VARNOSTNIH VENTILOV V OBJEKTU TRI-2 PO TRD 721
========================================================================
VARNOSTNI VENTIL ST. 1
MOC kW 291
P1 (bar a): 3.0 P2 (bar a): 1
------------------------------------------------------------------------
RACUNSKE VREDNOSTI
PRESEK VENTILA (mm2): 405.4 alfa w: 0.740 K: 0.970 kW/mm2
------------------------------------------------------------------------
IZBRANI VARNOSTNI VENTIL
FIRMA :ARI VENTIL:SAFE 12.901/902
DN 32/50 Avent (mm2): 661 NAZ.TEMP(C) 100 PN 16
========================================================================
DOLOCITEV VARNOSTNIH VENTILOV V OBJEKTU MIRNA PO AD-A2 IN TRD 421
======================================================================
VARNOSTNI VENTIL ST. 1 MEDIJ:PARA
PRETOK kg/h 500
P1 (bar a)= 7.5 T (C)= 184 P2 (bar a)= 1.0 RO (kg/m3)= 3.7378
----------------------------------------------------------------------
RACUNSKE VREDNOSTI
LAVAL = PL/P1 = (2/(k+1)) exp(k/(k-1)) K = 1.300
= (2/(1.30+1)) exp(1.30/(1.30 -1)) = 0.55
RAZM = P2/P1 = 1.0/ 7.5 = 0.13 < 0.55
PSI=sqr(K/(K+1))*(2/(K+1)) exp(1/(K-1))
=sqr(1.30/(1.30+1))*(2/(1.30+1)) exp(1/(1.30 -1))= 0.47
X = 0,6211 * (sqr(P1*V))/PSI
= 0,6211 * (sqr( 7.5*0.2675))/ 0.47 = 1.86
Ao = (X*Q)/(alfaw*P1) mm2
= ( 1.86* 500)/(0.710* 7.5) = 175.1 mm2 Reakcija = 125.7 N
----------------------------------------------------------------------
IZBRANI VARNOSTNI VENTIL
FIRMA :TPK VENTIL:TPK-M2 Alfa w=0.710
DN 25/40 Avent (mm2)= 314 NAZ.TEMP(C) 200 PN 16
======================================================================
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