Pertes De Charges - Endress+Hauser Promass 63 Instructions De Montage Et De Mise En Service
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Voir aussi pour Promass 63:
- Instructions de montage et de mise en service (151 pages)
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11 Caractéristiques techniques
132
Pertes de charges
La perte de charge dépend des propriétés du fluide et de son débit. Pour les liquides
on pourra utiliser par approximation les formules suivantes :
4 m
=
Nombre de
Re
π
⋅ ⋅ ⋅
d
Reynolds
Re ≥ 2300 *
∆p
=
⋅
υ
K
∆p
=
⋅
K
1
Re < 2300
∆p = perte de charge [mbar]
•
υ = viscosité cinématique [m
m = débit massique [kg/s]
* Pour les gaz, il convient d'utiliser la formule valable pour Re ≥ 2300 pour le calcul de la perte de charge.
Diamètre
1,10 ⋅ 10
DN 1
Promass A
1,80 ⋅ 10
DN 2
3,50 ⋅ 10
DN 4
Promass A
1,40 ⋅ 10
DN 2
Haute
3,00 ⋅ 10
DN 4
pression
8,55 ⋅ 10
DN 8
11,38 ⋅ 10
DN 15
17,07 ⋅ 10
DN 15 *
17,07 ⋅ 10
Promass I
DN 25
25,60 ⋅ 10
DN 25 *
25,60 ⋅ 10
DN 40
35,62 ⋅ 10
DN 40 *
35,62 ⋅ 10
DN 50
5,53 ⋅ 10
DN 8
8,55 ⋅ 10
DN 15
Promass
11,38 ⋅ 10
DN 25
M
17,07 ⋅ 10
DN 40
25,60 ⋅ 10
DN 50
38,46 ⋅ 10
DN 80
Promass
4,93 ⋅ 10
DN 8
M
7,75 ⋅ 10
DN 15
Haute
10,20 ⋅ 10
DN 25
pression.
5,35 ⋅ 10
DN 8
8,30 ⋅ 10
DN 15
Promass F
12,00 ⋅ 10
DN 25
17,60 ⋅ 10
DN 40
26,00 ⋅ 10
DN 50
Indications de pertes de charge y compris passage tube de mesure/conduite.
Des exemples de diagrammes de perte de charge pour l'eau se trouvent à la page suivante.
* DN 15, 25, 40 "FB" = Promass I avec continuité de diamètre interne
Promass A / I
&
⋅
υ ρ
&
2
⋅
K
3
m
−
&
0 25
.
1 75
.
0 75
.
⋅
⋅
ρ
+
m
ρ
&
2
⋅
K
3
m
&
υ
⋅
+
m
ρ
ρ
=
densité fluide [kg/m
2
/s]
d
=
diamètre intérieur des tubes de mesure [m]
K...K3 =
constantes (en fonction du DN)
d [m]
K (liquide)
K (gaz)
–3
11
1,2 ⋅ 10
2,0 ⋅ 10
–3
10
1,6 ⋅ 10
2,7 ⋅ 10
–3
8
9,4 ⋅ 10
16,0 ⋅ 10
–3
5,4 ⋅ 10
10
9,2 ⋅ 10
–3
9
2,0 ⋅ 10
3,4 ⋅ 10
–3
6
8,1 ⋅ 10
13,8 ⋅ 10
–3
6
2,3 ⋅ 10
3,9 ⋅ 10
–3
5
4,1 ⋅ 10
7,0 ⋅ 10
–3
5
4,1 ⋅ 10
7,0 ⋅ 10
–3
4
7,8 ⋅ 10
13,3 ⋅ 10
–3
4
7,8 ⋅ 10
13,3 ⋅ 10
–3
4
1,3 ⋅ 10
2,2 ⋅ 10
–3
4
1,3 ⋅ 10
2,2 ⋅ 10
–3
5,2 ⋅ 10
7
8,8 ⋅ 10
–3
6
5,3 ⋅ 10
9,0 ⋅ 10
–3
6
1,7 ⋅ 10
2,9 ⋅ 10
–3
5
3,2 ⋅ 10
5,4 ⋅ 10
–3
4
6,4 ⋅ 10
10,9 ⋅ 10
–3
4
1,4 ⋅ 10
2,4 ⋅ 10
–3
7
6,0 ⋅ 10
10.2 ⋅ 10
–3
6
8,0 ⋅ 10
13.6 ⋅ 10
–3
6
2,7 ⋅ 10
4.6 ⋅ 10
–3
7
5,7 ⋅ 10
9.7 ⋅ 10
–3
5,8 ⋅ 10
6
9.9 ⋅ 10
–3
6
1,9 ⋅ 10
3.2 ⋅ 10
–3
5
3,5 ⋅ 10
6.0 ⋅ 10
–3
4
7,0 ⋅ 10
11.9 ⋅ 10
Promass 63 PROFIBUS PA
Promass M / F
&
⋅
2 m
=
Re
π
⋅ ⋅ ⋅
υ ρ
d
&
0 25
.
1 85
.
∆p
=
⋅
υ
⋅
⋅
ρ
K
m
⋅
υ
0 25
.
K
2
&
∆p
=
⋅
υ
⋅
+
K
1
m
ρ
3
]
K1
K2
11
11
1,3 ⋅ 10
–
10
10
2,4 ⋅ 10
–
8
9
2,3 ⋅ 10
–
10
6,6 ⋅ 10
10
–
9
9
4,3 ⋅ 10
–
6
7
3,9 ⋅ 10
–
6
7
1,3 ⋅ 10
–
5
6
3,3 ⋅ 10
–
5
6
3,3 ⋅ 10
–
4
5
8,5 ⋅ 10
–
4
5
8,5 ⋅ 10
–
4
5
2,0 ⋅ 10
–
4
5
2,0 ⋅ 10
–
7
8,6 ⋅ 10
7
1,7 ⋅ 10
7
6
7
5
1,7 ⋅ 10
9,7 ⋅ 10
6
6
5
5,8 ⋅ 10
4,1 ⋅ 10
5
6
5
1,2 ⋅ 10
1,2 ⋅ 10
4
5
4
4,5 ⋅ 10
1,3 ⋅ 10
4
4
3
8,2 ⋅ 10
3,7 ⋅ 10
7
8
7
1,4 ⋅ 10
2,8 ⋅ 10
6
7
6
2,5 ⋅ 10
1,4 ⋅ 10
6
6
5
8,9 ⋅ 10
6,3 ⋅ 10
7
7
7
9,6 ⋅ 10
1,9 ⋅ 10
6
1,9 ⋅ 10
7
10,6 ⋅ 10
5
6
6
5
6,4 ⋅ 10
4,5 ⋅ 10
5
6
5
1,3 ⋅ 10
1,3 ⋅ 10
4
5
4
5,0 ⋅ 10
1,4 ⋅ 10
Endress+Hauser
−
0 86
.
&
⋅
2
m
K3
0
0
0
0
0
4
129,95 · 10
4
23,33 · 10
4
0,01 · 10
4
5,89 · 10
4
0,11 · 10
4
1,19 · 10
4
0,08 · 10
4
0,25 · 10
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