Prestazioni a confronto

Prestazioni a confronto: analisi degli intensificatori
di pressione presenti sul mercato
13 Maggio 2010
Massimiliano Annoni
[email protected]
Pump architectures
Uge l o p ri ma rio
Tecnocut
VNRA2
VNRA4
4
VNRA6
•
•
•
•
•
Vas ca di rac co tl a
5
2
Pis to n e 1
Pis ton e 2
VNRA1
Pi sto ne 3
VNR A3
VM 1
VM2
Rete d
i ric a
VNRA5
VM3
3
Se rba toi o 2
Se rba toi o 3
Serb ato o
i 4
Ge sti on e
pre co mp res si o ne
VN R2
Ac cu mu a
l tore
1
Ing res so
VNR6
Portata, pressione
Complessità
Affidabilità
Efficienza
Costo e durata dei
consumabili
PL C
Po mp a 2
Po mp a 1
Mo tore 1
M oto re 2
Serb ato o
i 1
Se rb ato o
i 5
Serb ato o
i 6
Flow
Pressure (MPa)
336,9 MPa
343
34 1
339
337
335
333
33 1
0
1
2
3
T i me ( s e c )
4
5
Hammelmann
Omax
Politecnico di Milano - M. Annoni
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Modelling the plant behaviour with Dymola
Red: Hydraulics (oil)
Green: Translational Mechanics
Black: Rotational Mechanics
Blue: Electronics
Light blu: Hydraulics (water)
SKETCH OF THE WHOLE MODELLED SYSTEM
Flow Corp.
Politecnico di Milano - M. Annoni
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Modelling the plant behaviour with Dymola
336 MPa
Piston Velocity
0,4
Velocity
(m/s)
Velocità
Velocità (m/s)
(m/s)
19
14
9
4
2
2,5
3
3,5
4
4,5
5
Time (sec)
(s)
Tempo
0,35
0,3
0,25
0,2
0,15
0,1
0,05
0
1
1,5
3,5
4
2
2,5
Time
Tempo (s)
(sec)
3
3,5
4
Water Pressure
343
Pressure
Pressione
Pressione(MPa)
(MPa)
(MPa)
Pressione
(MPa)
Pressure
(MPa)
Pressione
(MPa)
Oil Pressure
341
339
337
335
333
331
1
1,5
2
2,5
3
Time
(s)(s ec)
T em po
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Components characterization
Intensifier characteristic curve
B -0
-0.30
A -0.3
.3 0
longer pipes
leakages
A --0
0.4 0
250
200
B-0 .2
.25
350
300
Closed
A -0
-0..2
23
p0,Q1 =0
D-S
T- 0
.25
DSP
- 0.
25
B -0..2
20
A -0..2
20
400
D-S T
- 0.
D -S P 15
- 0. 15
p 0 [MPa]
Flow 9XV-S
150
100
50
regression
acquired points
Tube
Q1, p0 =0
A, B
Orifice producers
D
Diamond orifices
ST, SP
Diamond orifices internal
geometries
0
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50
Q 1 [l/min]
M. Annoni, L. Cristaldi, M. Lazzaroni, M. Monno, Water jet system characterization, monitoring and control based on pump
motor power signal analysis, Proc. of the 18th International Conference on Water Jetting, Gdansk (Poland), 13-15 September
2006, Ed. BHR, pp. 83-96.
Politecnico di Milano - M. Annoni
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Closed-max
Components characterization
Intensifier
9.27 kW characteristic curve - Power
A-0.23-max
10 kW
200
150
A-0.30-max
5 kW
100
50
20.59 kW
15 kW
300
250
B-0.25-max
B --0
0..3
30
Closed
A --0
0.3
.3 0
B-0 ..2
25
A-0 ..2
23
p0,Q1 =0
A -0.4 0
p 0 [MPa]
400
350
B -0
-0.2
.20
A -0..2
20
18.60 kW
regression
acquired points
Tube
Q1, p0 =0
24.62 kW
0
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50
Q 1 [l/min]
Tube-max
5.82 kW
A-0.40-max
B-0.30-max
16.55 kW
25.50 kW
Politecnico di Milano - M. Annoni
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Components characterization
Closed
300
A-0.30
B -0.3 0
350
B -0.25
p0,Q1 =0
A -0.23
B -0.2 0
A -0.20
400
d
250
A -0.4 0
p 0 [MPa]
Characterization and comparison of orifices
200
150
100
50
regression
acquired points
Tube
0
0.00 0.50 1.00 1.50 2.00 2.50 3.00
Q 1 [l/min]
Politecnico di Milano - M. Annoni
Q1, p0 =0
3.50
A, B
Orifice producers
D
Diamond orifices
ST, SP
Diamond orifices internal
geometries
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Components characterization
B --0
0.30
A --0
0.4 0
250
200
A -0..3
30
Closed
B-0 ..2
25
350
300
A --0
0..2
23
p0,Q1 =0
D-S
T- 0
.25
DSP
- 0.
25
B -0..2
20
A -0.2
.2 0
400
D-S T
- 0.
D -S P 15
- 0. 15
p 0 [MPa]
Characterization and comparison of orifices
150
100
50
regression
acquired points
Tube
Q1, p0 =0
0
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50
Q 1 [l/min]
Politecnico di Milano - M. Annoni
A, B
Orifice producers
D
Diamond orifices
ST, SP
Diamond orifices internal
geometries
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Pumps characterization
characteristic curves comparison
400
pressione
massima
350
Ugello 0,25 mm
300
250
Ugello 0,20 mm
200
Ugello 0,23 mm
150
Pressione
massima
Ugelli 0,2+0,55 mm
350
Pressione [MPa] ][]
Pressione [MPa] []]]
400
Ugello 0,30 mm
300
Ugelli 0,3+0,55 mm
250
Ugelli 0,2+0,6 mm
200
Ugelli 0,3+0,6 mm
Ugelli 0,3+0,65 mm
150
100
Ugello 0,40 mm
50
Ugelli 0,3+0,7 mm
100
0,00
0,50
1,00
1,50
2,00
2,50
3,00
5
3,50
7
9
11
13
Portata [l/min]
Portata [l/min]
INTENSIFICATORE
MOTORE ASINCRONO TRIFASE
ACCUMULATORE
POMPA AD ALBERO
A GOMITI
INVERTER
POMPA DELL’OLIO
MOTORE ASINCRONO TRIFASE
Politecnico di Milano - M. Annoni
Hammelmann
Omax
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Pumps efficiency
Confronto rendimento pompe
1.00
0.90
Rendimento [-] [-]
0.80
0.70
0.60
0.50
Put p ⋅ Q
ηp =
=
Pel
Pel
0.40
0.30
0.20
0.10
0
10
20
30
40
50
60
70
Potenza idraulica [kW]
Pompa ad albero a gomiti
Politecnico di Milano - M. Annoni
Pompa ad intensificatore
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Jet Edge X-Stream 90-50
Flow 9XV-S
Tecnocut 60 HP
0,25 mm - 250 MPa
0,30 mm - 200 MPa
0,25 mm - 360 MPa
0,30 mm - 300 MPa
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Monitoring
Pressure
[MPa]
Time (s)
Power
[kVA]
Time (s)
Check valve malfunctioning condition at 100 MPa
M. Annoni, L. Cristaldi, M. Lazzaroni, Measurements, Analysis, and Interpretation of the Signals From a High-Pressure Waterjet
Pump, IEEE Transactions on Instrumentation and Measurement, Vol. 57, No. 1, January 2008, pp. 34-47.
M. Annoni, L. Cristaldi, M. Lazzaroni, M. Monno, Water jet system characterization, monitoring and control based on pump motor
power signal analysis, Proc. of the 18th International Conference on Water Jetting, Gdansk (Poland), 13-15 September 2006, Ed.
Politecnico di Milano - M. Annoni
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BHR, pp. 83-96
Monitoring
Pressure
[MPa]
Time [s]
Power
[kVA]
Time [s]
Seals failure condition at 313 MPa
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Diagnostics
Case 1: HP seals breakage
Tecnocut
Orifice diameter 0.4 mm – pressure 300 MPa (3000 bar)
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Diagnostics
Case 2: Orifice breakage
Tecnocut
Orifice diameter 0.3 mm – pressure 200 MPa (2000 bar)
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Diagnostics
Case 3: Valve seat breakage
Tecnocut
Orifice diameter 0.3 mm – pressure 200 MPa (2000 bar)
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Contacts
02 23998536 F: 02 23998585
E: [email protected]
W: tecnologie.mecc.polimi.it
T:
T:
0523 623190
E:
[email protected]
F:
0523 645268
W:
www.musp.it
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