Introduction to Troubleshooting Solutions for Hydrogen Generators

Release time:

Feb 21,2022

The hydrogen generator utilizes membrane permeation technology and self-flowing electrolytic cells based on liquid level difference to achieve one-step purification, resulting in a purity of over 99.999%. It employs advanced technology to scientifically address the issue of liquid reflux, making it an ideal hydrogen generator for laboratory use. Hydrogen gas is widely used in laboratories, commonly as a carrier gas or combustion gas for GC. Compared to high-pressure cylinders, hydrogen generators are safer and more economical. However, hydrogen generators also require proper maintenance and care, as incorrect usage can lead to equipment malfunctions. Today, I would like to share my experience in dealing with such malfunctions.

The hydrogen generator utilizes membrane permeation technology and self-flowing electrolytic cells based on liquid level difference to achieve one-step purification, resulting in a purity of over 99.999%. It employs advanced technology to scientifically address the issue of liquid reflux, making it an ideal hydrogen generator for laboratory use. Hydrogen gas is widely used in laboratories, commonly as a carrier gas or combustion gas for GC. Compared to high-pressure cylinders, hydrogen generators are safer and more economical. However, hydrogen generators also require proper maintenance and care, as incorrect usage can lead to equipment malfunctions. Today, I would like to share my experience in dealing with such malfunctions.

If the hydrogen generator experiences overpressure, exceeding the set value and causing the digital display to change and flicker continuously, it could be due to the displacement or damage of the pressure controller's setting position. In this case, you should adjust the pressure control device or replace it. If the internal pressure of the gas-water separator is too high, loosen the gas-water separator's screw cap to reduce the internal pressure or replace the gas-water separator.

If the hydrogen generator leaks, typically the pressure gauge reading is less than the set value (usually 0.3MPa) or zero, while the output flow rate is greater than the actual gas consumption. You can test the dry tube's ends with soapy water to see if there are bubbles. Bubbles indicate a leak in the dry tube. In this case, unscrew the dry tube and reassemble it, replace the sealing ring, or replace the dry tube. If the dry tube is not leaking, use a seal to block the hydrogen outlet and let the instrument perform a self-check. If the self-check indicates a leak, open the casing to inspect the internal gas lines for any leak points. If you cannot detect the leak, contact the supplier's technical department for assistance. If the self-check does not detect a leak, inspect the gas lines after the instrument to find the leak point.

Insufficient gas output from the hydrogen generator may be due to leakage in the instrument or low electrolyte concentration. In this case, check for leaks and add electrolyte (typically potassium hydroxide). If the drying tube of the hydrogen generator contains water, it could be due to poor-quality silica gel or incomplete regeneration. Replace the silica gel with a better quality one or extend the baking time, typically at 120°C for 12 hours. Alternatively, if the issue is due to liquid reflux, replace the gas-water separator or adjust its settings accordingly.

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