Product Overview
The Skid-Mounted PSA Oxygen Unit is an integrated, factory-assembled gas generation system built on a heavy-duty structural carbon steel skid. Utilizing Pressure Swing Adsorption (PSA) technology with high-grade Zeolite Molecular Sieves (ZMS), the unit separates oxygen from compressed air at ambient temperatures.
Engineered for immediate site integration, the system arrives pre-piped, pre-wired, and pressure-tested. It eliminates liquid oxygen logistics dependencies, gas cylinder handling risks, and recurring supply chain volatility for continuous-demand operations.
Technical Specifications
|
Parameter |
Standard Industrial Range |
|
Capacity |
5 Nm3/h to 500 Nm3/h |
|
Oxygen Purity |
93% +/- 2% (Adjustable up to 95% upon request) |
|
Discharge Pressure |
0.1 MPa to 0.2 MPa (Higher pressures up to 15 MPa via optional booster) |
|
Feed Air Pressure |
0.5 MPa to 0.8 MPa |
|
Power Supply |
380V/415V, 50Hz/60Hz, 3-Phase (Customizable) |
|
Ambient Operating Temp |
5C to 45C |
|
Control System |
PLC with Siemens/Allen-Bradley HMI Touchscreen |
Key Features
Modular Skid Architecture: Single-baseframe assembly integrates the air compressor, refrigerated dryer, filtration train, adsorption towers, and buffer tanks, reducing site installation footprint by up to 40%.
Automatic Purity Control (APC): Real-time Zirconia oxygen analyzer continuously monitors purity; off-spec gas is automatically vented to ensure downstream process stability.
Heavy-Duty Pneumatic Valves: Fast-acting, maintenance-free process valves rated for > 1,000,000 switching cycles to withstand continuous pressure swings.
Optimized Bed Density: Pneumatic molecular sieve filling technique eliminates channeling and extends ZMS service life beyond 8 to 10 years.
Applications
Metal Fabrication & Cutting: Continuous high-purity oxygen feed for laser cutting, flame cutting, and welding lines, replacing high-pressure cylinders.
Wastewater Treatment: Oxygen enrichment for biological aeration tanks to accelerate chemical oxygen demand (COD) reduction.
Aquaculture: High-density fish farming oxygenation systems to maintain dissolved oxygen (DO) levels during peak stocking densities.
Glass Ampoule & Quartz Working: Stable flame temperature control for glassblowing and quartz tube manufacturing.
Customization Options
Containerized Enclosure: ISO 20ft/40ft weatherproof and sound-attenuated container integration for outdoor deployment.
Low-Temperature Package: Heat tracing and insulation for cold-climate installations down to -20C.
Dual-Line Redundancy: N+1 compressor or adsorption tower configurations for mission-critical operations.
Remote Telemetry: Modbus TCP/IP, Profibus, or 4G/5G industrial gateway for remote SCADA monitoring.
Manufacturing & Quality Control
Vessel Fabrication: Adsorption vessels are fabricated in-house adhering strictly to GB150 / ASME Section VIII standards, utilizing automated submerged arc welding (SAW) and ultrasonic testing (UT) for seam integrity.
Sandblasting & Coating: Structural skids undergo grit blasting to Sa 2.5 standard, followed by a multi-layer epoxy primer and polyurethane topcoat for corrosion resistance in harsh industrial environments.
Factory Acceptance Testing (FAT): Every unit undergoes a mandatory 72-hour continuous full-load run test prior to dispatch, measuring flow, purity, power draw, and dew point stability under simulated site conditions.
Certifications & Compliance
Quality Management: ISO 9001:2015 certified manufacturing facility.
Pressure Safety: ASME U-Stamp compliance available; CE-marked pressure vessels and electrical control panels (Low Voltage Directive & EMC).
Electrical Standards: UL/CSA compliant electrical components available for North American markets.
Packaging & Delivery
Secured Export Crating: Fumigation-free wooden framing with moisture-barrier vacuum foil wrapping for ocean freight protection.
Component Tagging: All loose interconnecting pipes and electrical plugs are alphanumerically tagged matching the P&ID and electrical schematics.
Lead Time: Standard configurations ship within 4 to 6 weeks; custom-engineered systems require 8 to 12 weeks.
FAQ
Q: What is the typical service life of the Zeolite Molecular Sieve (ZMS)?
A: Under proper feed air filtration (free of oil and liquid water), ZMS lifespan ranges from 8 to 10 years without requiring replacement.
Q: How does ambient temperature affect oxygen output?
A: Ambient temperatures above 40C or high humidity reduce air compressor volumetric efficiency. We recommend installing an optional chiller or canopy ventilation package for extreme climates.
Q: Can the unit adjust oxygen flow automatically based on demand?
A: Yes. The PLC control system features an automatic sleep/wake mode that modulates cycle frequency based on receiver tank pressure, minimizing power consumption during low-demand periods.
Request a Quote (RFQ)
To receive a formal technical proposal, 3D/P&ID reference package, and commercial quotation within 24 hours, please provide the following parameters:
Required Oxygen Flow Rate (Nm3/h)
Required Oxygen Purity (%)
Delivery Pressure (bar/MPa)
Local Power Supply Specifications (Voltage/Frequency)
Installation Environment (Indoor, Outdoor, or Containerized)
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