ANYAN AYAN-100LB Industrial PSA Nitrogen Generator

Overview

The ANYAN AYAN-100LB Industrial PSA Nitrogen Generator is a pressure-swing adsorption (PSA) system engineered for continuous, on-site nitrogen production from ambient air. It operates on the physical separation principle of kinetic selectivity—leveraging the differential diffusion rates of oxygen and nitrogen molecules through carbon molecular sieve (CMS) media under elevated pressure. During the high-pressure adsorption phase, oxygen, water vapor, and CO₂ are preferentially retained within the micropores of the CMS, while nitrogen passes through with high selectivity. The system employs dual parallel adsorption towers to ensure uninterrupted nitrogen delivery: while one tower adsorbs oxygen, the other undergoes depressurization and purging to regenerate the CMS bed. This cyclic, fully automated process delivers stable nitrogen output across a wide purity range (95% to 99.999%), making it suitable for industrial inerting, blanketing, packaging, and laboratory-grade applications requiring consistent, oil-free, dry nitrogen.

Key Features

• Dual-tower PSA architecture with automatic valve sequencing for seamless, uninterrupted nitrogen supply
• Integrated pre-purification train: coalescing filter, refrigerated dryer, and high-efficiency particulate/activated carbon polishing filter to protect CMS integrity
• Stainless steel nitrogen buffer tank with integrated pressure regulation and flow control
• Real-time monitoring via built-in nitrogen purity analyzer (electrochemical or zirconia-based, configurable), digital flow meter, and dew point sensor (−40 °C typical)
• Robust mechanical design with reinforced CMS bed containment—featuring precision-engineered pneumatic cylinder-based tower compaction to prevent CMS fluidization, channeling, or pulverization
• Comprehensive safety interlocks including overpressure relief, low inlet pressure shutdown, and high dew point alarm
• CE-compliant electrical cabinet with IP54-rated enclosure; designed for operation in non-hazardous industrial environments per IEC 60079-0

Sample Compatibility & Compliance

The AYAN-100LB is compatible with ambient air as feed gas and requires no external consumables beyond scheduled replacement of filtration media (coalescing elements, desiccant, activated carbon). It produces nitrogen meeting ISO 8573-1:2010 Class 2.2.1 (solid particles), Class 2 (water), and Class 1 (oil) when operated with recommended maintenance intervals. While not certified to FDA 21 CFR Part 11 out-of-the-box, its data logging capability (via optional RS485/Modbus RTU interface) supports integration into validated GMP/GLP environments where electronic record integrity and audit trail requirements apply. The unit complies with Chinese GB/T 19001–2016 (ISO 9001) quality management standards and meets electromagnetic compatibility (EMC) requirements per GB/T 17626 series.

Software & Data Management

The generator includes an embedded PLC-based controller with a 5.7-inch HMI touchscreen interface for local operation, parameter configuration, and real-time diagnostics. System logs—including runtime hours, regeneration cycle count, purity trends, pressure profiles, and alarm history—are stored onboard for ≥30 days. Optional Ethernet or RS485 connectivity enables remote monitoring via SCADA systems or custom LabVIEW/Python-based dashboards. All critical operational parameters (e.g., tower pressure differential, purge time, purity deviation) are timestamped and exportable in CSV format. For regulated laboratories, third-party validation packages—including IQ/OQ documentation templates and calibration traceability records for sensors—are available upon request.

Applications

• Chemical synthesis and reactor blanketing where oxygen exclusion prevents oxidation or side reactions
• Food and pharmaceutical packaging lines requiring inert atmosphere for shelf-life extension
• Electronics manufacturing (SMT reflow, wave soldering) to suppress oxide formation on solder joints
• LC-MS and GC carrier gas supply (at ≥99.999% purity with optional final catalytic purification)
• Fire suppression system nitrogen charging and pipeline purging
• Research laboratories performing controlled-atmosphere experiments or catalyst testing

FAQ

What determines CMS service life, and how often must it be replaced?
CMS lifespan depends primarily on feed air quality and adherence to preventive maintenance schedules. With properly maintained upstream filtration and dew point control, CMS typically lasts 3–5 years before purity degradation exceeds specification. Replacement timing is confirmed by sustained failure to meet target purity at rated flow—never by fixed calendar intervals.
Can this unit supply nitrogen for LC-MS applications?
Yes—when configured with ≥99.999% purity setting, integrated catalytic oxygen scavenger, and ultra-low particulate filtration, the AYAN-100LB meets ASTM D6866-22 and USP requirements for instrumental gas purity. Final validation against instrument manufacturer specifications is recommended.
Is remote monitoring and alarm notification supported?
Standard Modbus RTU (RS485) allows integration with building management systems. Optional Ethernet module adds SNMP trap support and email/SMS alerts via external gateway—subject to site network policy and IT security review.
What maintenance tasks require operator intervention?
Monthly: drain condensate from filters and dryer; inspect for leaks or abnormal vibration. Quarterly: replace coalescing filter elements and dryer desiccant. Annually: verify CMS bed compaction force, calibrate purity sensor, and perform full system leak test per ISO 15848-1.
Does the unit include validation documentation for GMP compliance?
Factory-supplied IQ/OQ protocols and calibration certificates for all field instruments are available as add-on deliverables. Full 21 CFR Part 11 compliance requires customer-specific configuration of audit trail settings and electronic signature workflows.