Zhonghuanbeifang ZHQ-2000PRO Pure-Water Electrolysis Hydrogen Generator

Overview

The Zhonghuanbeifang ZHQ-2000PRO is a high-purity hydrogen generator engineered for continuous, on-demand hydrogen supply in analytical and research laboratories. It employs proton exchange membrane (PEM) electrolysis technology—using deionized water as the sole feedstock—to produce ultra-high-purity hydrogen (99.99999%) without caustic electrolytes, alkali solutions, or consumable catalysts. This eliminates risks associated with chemical handling, corrosion, and maintenance downtime. The system operates under precisely controlled electrochemical conditions, ensuring stable gas output across variable demand loads. Designed for integration with gas chromatography (GC), GC-MS, and other hydrogen-dependent instrumentation, the ZHQ-2000PRO delivers consistent flow (2000 mL/min) and pressure (0.2–0.6 MPa adjustable) while maintaining pressure stability within ±0.001 MPa—a critical requirement for retention time reproducibility and detector sensitivity in regulated analytical workflows.

Key Features

• PEM-based pure-water electrolysis: No KOH or NaOH required; fully sealed, maintenance-light architecture.
• Intuitive 5-inch capacitive touchscreen interface with dual-language support (English/Chinese) and real-time system diagnostics.
• User-configurable hydrogen delivery pressure (0.2–0.6 MPa) and outlet pressure (0–0.5 MPa), enabling seamless compatibility with diverse GC inlet configurations (e.g., split/splitless, PTV, and multi-port systems).
• Integrated environmental monitoring: Onboard sensors report internal cabinet temperature and relative humidity to prevent condensation-related failures.
• Smart self-diagnostic system with pop-up alert notifications for low water level, overtemperature, pressure deviation, or membrane performance anomalies.
• Dual-stage filtration: Pre-membrane deionization + post-electrolysis palladium-silver diffusion barrier ensures particulate-free, moisture- and hydrocarbon-free hydrogen output.
• Optional auto-refill module with level-sensing reservoir and LED status indicators for unattended operation during extended analyses.
• Compact footprint (388 × 220 × 355 mm) and lightweight design (16 kg) facilitate benchtop deployment in space-constrained labs.

Sample Compatibility & Compliance

The ZHQ-2000PRO is compatible with all major GC platforms requiring carrier or fuel gas—including Agilent, Thermo Fisher, Shimadzu, PerkinElmer, and Waters instruments—as well as hydrogen flame ionization detectors (FID), thermal conductivity detectors (TCD), and reductive pyrolysis systems. Its output meets ASTM D6299 and ISO 8573-1:2010 Class 1 specifications for compressed gases used in analytical instrumentation. The unit complies with national and international safety and performance standards, including GB/T 34539-2017 (Hydrogen-Oxygen Generator Safety Requirements), GB/T 29411-2012 (Technical Specifications for Water Electrolysis Hydrogen Generators), ISO 22734-2:2011 (Electrolytic Hydrogen Generators for Residential Applications), and BS ISO 16110-1:2007 (Safety Requirements for Hydrogen Generators Using Fuel Processing Technologies). All electrical components conform to IEC 61010-1 for laboratory equipment, and the enclosure satisfies IP20 ingress protection requirements.

Software & Data Management

While the ZHQ-2000PRO does not include remote software control, its embedded firmware supports full audit trail functionality for GLP/GMP environments. System logs—including runtime hours, pressure setpoints, temperature readings, alarm events, and water consumption history—are timestamped and stored locally in non-volatile memory. Data export is available via USB port in CSV format for traceability documentation and internal quality audits. The interface adheres to FDA 21 CFR Part 11 principles by enforcing user-level access controls (operator/administrator modes) and preventing unauthorized parameter modification. Firmware updates are performed offline via secure USB media to maintain system integrity and regulatory compliance.

Applications

This generator serves as a primary hydrogen source in regulated and research-grade laboratories across multiple sectors: petroleum refining (hydrocarbon fingerprinting), pharmaceutical QC (residual solvent analysis per USP <467>), food safety (pesticide residue screening), environmental monitoring (VOC analysis in air/water), forensic toxicology (blood alcohol quantification), and academic research (catalysis studies, isotope labeling). Its ultra-high purity and pressure stability make it especially suitable for applications demanding low baseline noise and minimal column bleed—such as capillary GC with narrow-bore columns, multidimensional GC×GC, and hyphenated techniques requiring long-duration runs (>72 h) without gas interruption.

FAQ

Does the ZHQ-2000PRO require periodic electrolyte replacement?

No. It uses solid polymer electrolyte (SPE) PEM technology and only requires deionized water (≥1 MΩ·cm resistivity) as input—no KOH, NaOH, or other liquid electrolytes.
What water quality is required for optimal operation?

Deionized water with resistivity ≥1 MΩ·cm and total organic carbon (TOC) <50 ppb is recommended. Integrated pre-filtration extends membrane life but does not compensate for chronically poor feedwater quality.
Can this generator be integrated into a centralized lab gas network?

Yes—provided downstream pressure regulation, leak-tested stainless-steel tubing (SS316), and appropriate back-pressure valves are installed to maintain system integrity and avoid flow-induced instability.
Is the hydrogen output certified to ISO 8573-1 Class 1?

Yes. When operated with compliant feedwater and maintained per manufacturer guidelines, the delivered gas meets ISO 8573-1:2010 Class 1 for particles, water, and oil content.
What safety certifications does the unit hold?

It conforms to GB/T 34539-2017, IEC 61010-1, and incorporates redundant pressure relief valves, thermal cutoffs, and hydrogen leak detection circuitry aligned with ISO 22734-2 safety protocols.