Pure hydrogen generator GVCh-12
Pure hydrogen generator GVCh-12 designed to produce ultra-pure hydrogen grade A, used to power analytical instruments (chromatographs, gas analyzers, etc.). Due to the high developed pressure, deep purification and low moisture content, the hydrogen produced by the generator can be used as carrier gas in chromatographic studies. The use of a reactor makes it possible to reduce the oxygen content in the produced hydrogen by tens of times, compared to GVCh-6. Hydrogen in the generator is obtained by electrolysis of deionized water in an electrolyzer, made on a solid electrolyte - an ion-exchange polymer membrane. Water enters the electrolyzer (through tubes made of oxygen-resistant material) from supply tank, which contains water level control sensors. In the electrolyzer, water is decomposed into oxygen and hydrogen, which come out of it separately. Oxygen is discharged into the atmosphere through the feed tank, hydrogen enters the separator, where its primary separation from water occurs. The return of water from the separator to the supply tank is carried out through an electromagnetic valve when the water in the separator reaches a certain level. This device design allows for continuous operation of the generator with on-the-go refueling. The hydrogen then passes through a reactor, in which the oxygen impurity is removed from it. Final purification and drying of hydrogen occurs in fine filters. An electronic pressure sensor is installed at the generator output to regulate and indication on a digital display of hydrogen pressure in the consumer line. To prevent an emergency situation when “traffic jams” occur in the internal communications of the device, a limit pressure sensor is connected to the separator, which operates at a pressure of about 6.5 ati. At the same time Electrolysis stops and emergency signals appear. The generator meets the electrical safety requirements of class 1, type N according to GOST 12.2.025-76. Manba: https://www.nv-lab.ru/catalog_info.php?ID=2517
- Parameter: Value
- Grade of hydrogen produced: "A" according to GOST 3022-80
- Hydrogen purity in terms of dry gas, vol.%: 99.999
- Water vapor concentration at 20 °C and 1.0 ati, no more than ppm: 5
- Total hydrogen productivity, normalized to normal conditions, l/h: 12
- Range of set hydrogen output pressure, atm: 1.5…6.0
- Stability of hydrogen output pressure, no worse, atm: ±0.02
- Time to establish operating mode, no more than, min: 30
- Volume of double-distilled water poured, l: 1
- Double-distilled water consumption, no more, l/hour: 0.02
- Double-distilled water consumption, g/l hydrogen: 1.6
- Power, V/Hz: 220/50
- Power consumption, no more, W: - average in stationary mode - maximum (at startup): 150250
- Dimensions (W×D×H), no more, mm: 180×450×435
- Weight, no more, kg: 11