Overview of hydrogen purification device

- Hydrogen purification device plays an important role in various fields, it can improve the purity of hydrogen, remove impurities, and provide high quality hydrogen for many industries. Common types of hydrogen purification devices are diverse, each with its own unique role and advantages.

-When selecting, it is necessary to consider a number of factors, such as the initial purity of hydrogen, the required purity requirements, processing capacity, cost, and ease of operation and maintenance. Only by selecting the appropriate hydrogen purification device can we meet the needs of different industries and provide high-quality hydrogen guarantee for production and scientific research activities.

Common faults and treatment methods

-Feed gas with water:When the feed gas with liquid water into the adsorption tower will lead to the failure of the adsorbent. This is because liquid water will form a water film on the surface of the adsorbent, affecting the adsorption effect. The main feed valve of the adsorption tower should be closed immediately, and the bypass valve should be vented to check the degree of water. If the water is less, the water in the adsorbent can be removed by heating the adsorption tower and other methods to restore the performance of the adsorbent; if the water is serious, the adsorbent needs to be replaced.

- Power outage:When the power is off, the program control has no output, all program-controlled valves close automatically, and the device is in shutdown state. This situation can be treated as emergency shutdown. After the power supply is restored, check whether all parts of the equipment are normal, such as instrument display, valve status, etc., to ensure the safety of the equipment before restarting.

- Instrument air pressure drop:If the pressure is too low, it will start abnormally. At this time, the gas supply system should be checked to see if there is any leakage or blockage. If there is a leak, it should be repaired in time; if there is a blockage, the blockage should be cleaned to ensure that the gas pressure returns to normal.

Maintenance Precautions

- Before the equipment is overhauled, the equipment operator shall notify the upstream and downstream processes and confirm that the equipment can be cut off. First, cut off the front and rear hydrogen valves of the equipment, cut off the power supply into the equipment and the circulating water source in and out of the equipment, and cut off the control gas of the equipment. Then, professional maintenance personnel shall slowly open the vent valve, and perform pressure relief operation on the tower body, pipeline, valve and drainage tank until it is close to atmospheric pressure.

-The staff shall wear flame-retardant protective equipment when working, and shall fasten the safety belt when working at height, and there shall be at least two or more people when working. All operations that may cause sparks shall not be carried out without determining whether the hydrogen is emptied, and strictly abide by the "Hot Work Safety Management System".

- Maintenance of hydrogen pipelines and equipment:To prevent hydrogen leakage, equipment and pipelines should be inspected, maintained and cleaned regularly to find and repair any problems in time to ensure their safe operation. During the operation, it should be ensured that the operators have sufficient skills and knowledge and follow the safe operation procedures.

- Gas detection:Gas detection should be carried out regularly to ensure the reliability and accuracy of the detection instrument. Through gas detection, hydrogen leakage can be found in time and appropriate measures can be taken to repair it.

- Prevention of asphyxia and chemical reactions:Check and replace the filter regularly to ensure its effectiveness. Operators should be fully aware of the nature and dangers of hydrogen and take precautions to avoid accidents.