AirSep Centrox, Инструкция по эксплуатации

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Centrox Instruction Manual 15
AirSep Corporation
3.0 System Description
3.1 INTRODUCTION
Air Contains 21 % oxygen, 78% nitrogen, 0.9% argon, and 0.1% other gases.
AirSep Oxygen Concentrator separates this small percentage of the oxygen from
the compressed air through a unique Pressure Swing Adsorption (PSA) process.
The Centrox unit consists of two modules. The smaller module contains two
compressors that supply air for the process. Each compressor has a dedicated
switch and circuit breaker. The cord from the module plugs in to the PSA module.
This cord must not be plugged in to any other power supply outlet. Circuitry inside
the PSA module controls the power supplied to the compressors. The power cord
from the PSA module plugs into the wall. Figure 3.1 shows the two modules of the
Centrox oxygen concentrator.
PSA Concentrator
Module
Air Compressor
Module
Figure 3.1: Centrox Oxygen Concentrator
The air compressor module (See Figure 3.1) supplies pressurized air to the PSA
concentrator module. Inside the PSA concentrator module, the pressurized air
enters the feed & waste manifold (See Figure 4.4). A series of valves in the feed &
waste manifold controls the flow of air into each of the adsorber beds (See Figure
4.4). Valves also connect the beds to two mufflers (See Figure 4.4) that allow waste
gas to be vented from the beds. The oxygen concentrator uses in its adsorber
vessels an inert ceramic material called molecular sieve to separate compressed
air into the oxygen and the other gases. The unique properties of molecular sieve
allow it to attract, or adsorb, nitrogen physically from air under pressure. This allows
oxygen to exit the adsorbers as a product gas. Oxygen from top of the beds then
flows to the check valve assembly and then to the product manifold (See Figure
4.4). The check valve assembly supplies product oxygen to the flow controller. The
product manifold controls the flow of oxygen from one bed to another during various
stages of the oxygen generating process. The product oxygen then flows through