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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
=============================================================

 

 
 
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 !

 

 
 
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 !

 

 
 
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
-----------------------------------------------------------------------

 

 
 
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
======================================================================