Process Parameters; Process Schemes - Ingersoll Rand N2G17FP Manual De Operación Y Mantenimiento

The nitrogen production depends on these parameters:
Flow rate
The lower the flow rate of compressed air through hollow fibre membranes, the more oxygen can move through the membrane
wall. As a result the nitrogen produced at the outlet will be more pure. Adjust the purity of the nitrogen with the flow control
valve.
Temperature
The Nitrogen tire filling system operates optimally at a temperature of about 68-77 °F. If the temperature increases, the
pressurized air consumption will also increase. Do not place the system in a room where the temperature may rise
unnecessarily high.
Membrane pressure
A higher membrane pressure will increase the capacity of the Nitrogen tire filling system.
External pressure
There must be atmospheric pressure at the vent outlet. The capacity and the selectivity of the system decrease strongly if the
external pressure exceeds the atmospheric pressure.
Nitrogen tire filling system
N-1
COMPRESSED AIR INLET
F1, 2, 3 Coalescing filters
Y1 Pneumatical valve
M1,2.. Gas separation membranes
FCV Flow control valve
V1 Non-return-valve
PCV1 Back pressure control valve
PI1, 2 Pressure gauges
PSH Pneumatical pressure switch

3.3 Process Parameters

3.4 Process Schemes

F-1 F-2
F-3
BX
DX CI
Figure 3.2 Process Schemes
PERMEATE OUTLET
N-3
Y-1
M1
M2
8
FCV PCV1
V1
NITROGEN OUTLET
PI1
PSH
Form 04581138-Edition 1
N-2
PI2