The nitrogen hydrogen air integrated machine integrates the functions of generating nitrogen, hydrogen, and air. Its three core modules - PSA nitrogen production module, electrolytic water hydrogen production module, and air compression purification module - jointly construct an efficient and stable gas supply system.
The PSA nitrogen production module is based on the principle of pressure swing adsorption, utilizing the difference in nitrogen and oxygen adsorption performance of carbon molecular sieves to achieve separation. When pressurized, oxygen is preferentially adsorbed by carbon molecular sieves, while nitrogen is enriched due to weak adsorption capacity and becomes product gas; During decompression, the adsorbent desorbs oxygen to achieve regeneration. By alternating between two towers, high-purity nitrogen gas (with a purity of up to 99.999%) can be continuously produced, meeting the needs of gas chromatography carrier gas, metal heat treatment protective gas, etc.
The electrolytic water hydrogen production module adopts proton exchange membrane electrolysis technology. Under the drive of a direct current electric field, water molecules are oxidized at the anode to produce oxygen. Hydrogen ions pass through the proton exchange membrane to reach the cathode, and electrons form an electric current through an external circuit, which is reduced to hydrogen gas at the cathode. This module is equipped with fine electrode design and electrolytic cell construction to efficiently produce high-purity hydrogen gas (purity up to 99.999%), providing stable "power" for hydrogen flame detectors and ensuring flame sensitivity during organic compound analysis.
The air compression purification module compresses the air through an air compressor, and then undergoes pre-treatment such as filtration and drying to remove impurities such as dust and moisture. Finally, it outputs a stable airflow through a stabilizing device. This module provides clean air for the instrument, ensuring the normal operation of pneumatic components while avoiding interference from impurities on the analysis results.
The three major modules work together to achieve synchronous generation and stable supply of nitrogen, hydrogen, and air, improving experimental and production efficiency, reducing costs, and widely used in laboratory analysis, industrial manufacturing, and other fields.