GE P&W IPER Integrated Pump and Energy Recovery User Manual
Fact Sheet
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FSppIPER_EN.doc Jun-13
IPER*
Integrated Pump and Energy Recovery for 1,000 m3/d SeaPRO*
Water Displacement Unit
Three Water Cylinders with dual-acting pistons
Feed Water Valves and Energy Recovery Valves
on all cylinders
Hydraulic Power Unit
Highly Efficient Hydraulic pumps provide the
energy to power the Water Displacement Unit
Hydraulic Cylinders transfer the energy from the
Hydraulic Pumps to the dual-acting pistons
Figure 1: GE’s IPER, inset picture shows hydraulic device
Features
Highly Efficient Positive Displacement (PD)
Pump technology for desalination applications
Solid-state control system for robust, consistent
operation of plant capable of integrating into
existing PLC systems
Smooth, Consistent Flow and Pressure outputs
Basic Specifications
Capacity ............................................. 2,222 to 2,857 m3/day
(587k to 755k gpd)
SWRO Recovery .................................................. 35% to 45%
SWRO Permeate ....................... 1,000 m3/day (264k gpd)
Discharge Pressure (to membranes) ........ 10 to 80 bar
Supply Pressure (to IPER) ................................... 1 to 10 bar
Electric Motor .......................................... 200 h.p. 1800 rpm
Operating Temperature Range ....... 15-29ºC (59-85ºF)
Electronic Control Unit
Sophisticated Solid State control system syn-
chronizes positioning of the dual-acting pistons
and ensures all valves open and close at near
zero flow
Control System is designed to provide long last-
ing, stable control delivering a steady flow and
pressure output from the Water Displacement
Unit
Utilities Required
Motor Voltage (3 phase) .......................... 380 or 460 VAC
Control Voltage (1 phase) ....................... 120 or 220 VAC
Frequency ................................................................ 50 or 60 Hz
Foot Print .............................................................. 2.6 m X 6.0 m
Compressed Air ........................... 10 bar oil-free shop air
Connection Sizes
Feed Water In ....................................... 4.0 inch Cut Groove
High Pressure Out .............................. 4.0 inch Roll Groove
Concentrate In ..................................... 3.0 inch Roll Groove
Concentrate Out .................................. 3.0 inch Cut Groove
Materials of Construction
High-pressure piping ...... 2205 Stainless Steel, Sch. 10
Low-pressure piping ......................................... PVC, Sch. 80
Frame ........................................... Painted blue carbon steel
Control Enclosure ............................................................ IP 548
Operational Description
ITEM DESCRIPTION
IPER-1000
Flow Range
Pressure Range
2,222 – 2,857 m3/day
10 - 80 bar
Water Cylinder material of construction
Water Cylinder quantity
Water Cylinder orientation
Sch 40 Duplex 2205 Stainless Steel
3
Horizontal
Feed water valve style
Feed water valve material of
construction
Feed water valve quantity
Energy Recovery valve style
Energy Recovery valve material of
construction
Energy Recovery valve quantity
Single Direction Check
Zeron 100
12
Pilot Operated Check
Zeron 100
12
Hydraulic Cylinder Manufacturer
Hydraulic Cylinder Model
Hydraulic Cylinder quantity
Hydraulic Cylinder Max. Pressure
Milwaukee Hydraulic or
equal
H35D-MPV
3
206 bar
Hydraulic Pump Manufacturer
Hydraulic Pump Model
Hydraulic Pump quantity
Hydraulic Pump Max. Pressure
Hydraulic Pump reservoir size
Parker
Gold Cup P7R
3
206 bar
280 liters
Electronic control unit
manufacturer
Quantity
Controller
Interfaces with PLCs by:
Control Enclosure Material
Control Enclosure Rating
Control Power
GE
1
Solid state
GE, Allen Bradley, Siemens
FRP
IP 54
120 or 200 VAC, 1-phase,
50/60 Hz
Pressure Transmitter Manufacturer
Pressure Transmitter Model
Position Sensor Manfacturer
Position Sensor Model
Dwyer Instruments
626-15-GH-P1-E1-S1
MTS Temposonics
RHT0160UD601V2
Hydraulic Unit Dimensions (WXDXH)
Water Displacement Unit
Dimensions (WXDXH)
260 x 290 x 740 cm
260 x 290 x 740 cm
Figure 2 illustrates one of three double acting Water Cylinders (WC), stroking to the left as noted, consisting of Pumping Pistons (P2 & P4), separated by a
Ratio Rod (R3). The Pistons are powered by the
Hydraulic Cylinder (HC) in a trapezoidal wave form
(Figure 3) by means of a Drive Rod (R1).
Feed Pumping Function:
1. Supply pump flow enters at S, to the P4 piston.
2. Feed flow exits from the P2 piston to F to the
SWRO membranes.
Reject Energy Recovery Function:
1. High Pressure Reject returns from the SWRO
membranes to R, then through an Energy Recovery Valve to the back of Piston (P2), into the
smaller Piston area chamber determined by the
Ratio Rod.
2. The Reject pressure assists the Hydraulic Cylin-
der (HC) to create the Feed (F) pressure.
Reject Discharge Function:
1. Low Pressure Reject from a previous stroke ex-
ists from the chamber between R3 and P4.
2. This low pressure reject discharges through an
Energy Recovery Valve to D.
Specifications
Complementary Action:
1. There are three double acting pressure strokes
resulting in six (6) power strokes per cycle. Each
of these pressure strokes have complementary
flow profiles as shown in the Trapezoidal Wave
Form diagram (Figure 3.)
2. For system flushing all of the Energy Recovery
Valves can be put in the open position, allowing
flow from S through F and R, then exiting at D,
without operating the Hydraulic Cylinders (HC)
or Water Cylinders (WC).
Figure 2: IPER Function Figure 3: IPER smooth flow discharge
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