Shandong Luchuang H-500 High-Purity Hydrogen Generator
| Brand | Shandong Luchuang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | H-500 |
| Hydrogen Generation Principle | Alkaline Electrolysis |
| Output Flow Rate | 0–500 mL/min |
| Output Pressure | 0.6 MPa |
| Hydrogen Purity | 99.9995% |
| Power Consumption | 180 W |
| Dimensions (L×W×H) | 320 × 180 × 350 mm |
Overview
The Shandong Luchuang H-500 High-Purity Hydrogen Generator is an on-site, membrane-assisted alkaline electrolysis system engineered for continuous, reliable hydrogen supply in analytical laboratories. It operates on the principle of water electrolysis under controlled DC current, where hydroxide ions migrate across a porous diaphragm (not a PEM membrane) to separate gaseous products: hydrogen at the cathode and oxygen at the anode. Oxygen is safely vented through the liquid-phase exhaust path, while generated hydrogen passes through integrated gas–liquid separation and multi-stage purification—comprising desiccant and catalytic oxygen scavenging—to achieve ultra-high purity. Designed for integration with gas chromatography (GC), Fourier-transform infrared (FTIR) spectroscopy, and hydrogenation reactors, the H-500 eliminates cylinder logistics, pressure fluctuations, and contamination risks associated with compressed gas delivery.
Key Features
- Stable output pressure regulation (0–0.6 MPa), factory-set at 0.4 MPa ± 0.01 MPa with long-term stability ≤ ±0.001 MPa
- Wide-flow dynamic control: 0–500 mL/min adjustable via precision solenoid valve and real-time feedback loop
- Integrated gas–liquid separator with stainless-steel housing and coalescing filter to prevent electrolyte carryover
- Dual-stage purification: molecular sieve desiccant for moisture removal (<2 mL/m³) and palladium-doped catalyst for residual oxygen reduction (<10 mL/m³)
- Self-contained power management: regulated 180 W input with overtemperature and overpressure safety interlocks
- Compact footprint (320 × 180 × 350 mm) optimized for benchtop installation in ISO Class 5–7 cleanrooms or standard analytical labs
- Front-panel digital display showing real-time flow rate, system pressure, and operational status indicators
Sample Compatibility & Compliance
The H-500 is compatible with deionized water feed (conductivity <1 µS/cm) and requires no external gas cylinders or consumable cartridges. Its output meets ASTM D7622–22 specifications for high-purity hydrogen used in GC carrier gas applications and satisfies the minimum purity threshold (99.9995%) referenced in ISO 8573-1:2010 Class 1 for gaseous contaminants. While not certified to UL/CSA or CE for North American/EU regulatory markets, its electrical architecture complies with IEC 61010-1 safety requirements for laboratory equipment. The unit supports GLP-compliant operation when paired with external audit-trail-capable data loggers; however, it does not natively support FDA 21 CFR Part 11 electronic signature functionality.
Software & Data Management
The H-500 operates as a standalone analog-controlled instrument without embedded firmware or network connectivity. All operational parameters—including flow setpoint, pressure limit, and runtime hours—are manually configured and monitored via front-panel controls and LED indicators. For laboratories requiring traceable operation, optional analog voltage outputs (0–5 V DC) are available for interfacing with SCADA systems or third-party data acquisition hardware. No proprietary software, cloud platform, or remote diagnostics are provided; configuration and maintenance follow documented mechanical and electrical procedures outlined in the English-language user manual shipped with each unit.
Applications
- Carrier gas source for capillary GC and GC–MS systems requiring consistent, low-part-per-trillion oxygen and moisture levels
- Fuel gas for flame ionization detectors (FID) and thermal conductivity detectors (TCD)
- Reducing atmosphere generation in catalytic testing rigs and small-scale hydrogenation reactors
- Calibration gas blending systems where stable, metered hydrogen flow is critical to mixture accuracy
- On-demand hydrogen supply for portable fuel cell test benches and electrochemical impedance spectroscopy (EIS) setups
- Replacement for high-pressure hydrogen cylinders in environments where storage restrictions, insurance liabilities, or logistical delays are prohibitive
FAQ
What type of water is required for optimal operation?
Deionized water with resistivity ≥1 MΩ·cm (conductivity <1 µS/cm) is mandatory. Tap water or distilled water alone will cause rapid electrode degradation and elevated oxygen impurities.
Does the H-500 require periodic replacement of purification media?
Yes. The desiccant cartridge and catalytic oxygen scrubber must be replaced every 6–12 months depending on daily usage volume and inlet water quality. Replacement intervals are logged manually per GLP practice.
Can the unit operate continuously for 24/7 applications?
Yes. The H-500 is rated for unattended, continuous operation up to 8,760 hours/year, provided ambient temperature remains between 10–35°C and relative humidity stays below 80% non-condensing.
Is hydrogen purity verified by onboard sensors?
No. Purity is validated via factory-certified gas chromatographic analysis prior to shipment. Real-time purity monitoring is not implemented; users must perform periodic off-line verification using GC-TCD or laser-based analyzers if required by SOP.
What safety mechanisms prevent hydrogen accumulation in enclosed spaces?
The unit includes a pressure-relief valve (set at 0.65 MPa), automatic shutdown on temperature excursion (>65°C), and a fail-safe solenoid cutoff activated by internal pressure sensor drift exceeding ±0.02 MPa tolerance.
