GE Osmonics E4H Series, Руководство по эксплуатации и обслуживанию

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E4H Series
Operation & Maintenance Manual
9
Permeate from each membrane housing is collected in a common manifold. The
permeate then flows through a flow meter and to the outlet point of the machine.
The concentrate leaves the last membrane housing and flows to the flow control
center (recycle/concentrate manifold). At this point, the recycle valve channels a
predetermined amount of concentrate into the pump inlet. Recycle increases
recovery while maintaining adequate cross-flow through the membranes. The other
two ports of the flow control center lead to the concentrate valve and final pressure
gauge. The concentrate valve has three functions: It controls the amount of
concentrate flowing to the drain; it controls the pressure within the machine; and it
helps control the system recovery. An autoflush solenoid is added to the flow control
center with an additional tee. The concentrate then flows through a flow meter and
to the outlet point of the machine.
1.3. Machine Nomenclature
E-Series water purification machines are numbered in such a way as to indicate the
permeate flow you can expect from the machine and other specifications.
Example: RO,E4H-21K-DLX, 460, 6, 50-75
•
RO indicates the machine is a reverse osmosis machine.
•
E4H indicates the machine series (E) and 4-inch housings/membrane elements
•
H indicates horizontal membrane element housing configuration
•
21K indicates the rated permeate flow in thousands of gallons per day at 77
°
F
(25
°
C), i.e. 21K = 21,000 gallons per day
•
DLX indicates the deluxe model and ECN indicates the economy model
•
460 indicates 460 VAC, 3-phase voltage to starter. Standard models offer 460 VAC,
60 Hz, 3-phase and 380 VAC, 50 Hz, 3-phase.
•
6 indicates 60 Hz operation, (50 Hz operation is also available and is indicated by a
5 in place of the 6 .
•
50-75 indicates a recovery range of 50 to 75%.
1.4. Economy (ECN) Model and Deluxe (DLX) Model Options
1.4.1. ECN Model
E-Series ECN model water purification machines have all the features necessary for
safe, continuous production of high purity water. This assumes good quality feed
water, adequate pretreatment and regular operator maintenance, each shift or daily,
to the operation of the system.
•
50% to 75% recovery
•
Multi-stage centrifugal pump, SS construction (stainless steel castings with Noryl*
stages)
•
Base model electrical package includes NEMA-1 enclosure with a 110 VAC, 60 Hz or
220 VAC, 50 Hz single-phase control circuit; applies to all ECN models