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)
Hot Tags: skid-mounted psa oxygen unit, China skid-mounted psa oxygen unit manufacturers, suppliers, factory, Hospital Vacuum Pump System, oxygen generator with battery backup, oxygen generator with environmental protection service, oxygen generator with overload protection, oxygen generator with personalized service, oxygen generator with voltage regulator