What is the effective monitoring range of a hydrogen gas detector
There are many applications of hydrogen alarm devices, which are widely used in fields such as petroleum, chemical industry, metallurgy, aerospace, and light industry. Only when hydrogen detectors are installed correctly and reasonably can they serve as safety devices for detection and early warning. According to relevant national standards, the detection diameter of hydrogen combustible gas alarm devices in poorly ventilated places should be less than 5 meters, and the detection diameter of hydrogen detectors in outdoor places should be 10 meters.
Hydrogen is a high-quality energy source widely used in various industries. It can improve seed germination rate, regulate flowering period, improve stress resistance, improve disease and pest resistance, improve agricultural product quality, and preserve products in agriculture. In the chemical industry, it is one of the raw materials for the synthesis of ammonia and methanol processes; In terms of refining, it can be used for petroleum desulfurization, refining, catalytic cracking, etc. The electronic industry can be used as protective gas, while the metallurgical industry can be used as protective gas and reducing agent. Hydrogen has a high combustion heat value and does not produce harmful substances, making it a very promising clean energy source in the aerospace industry. In recent years, hydrogen has also developed rapidly in the fields of beauty and medicine.
Although hydrogen gas does not cause personnel poisoning, it is very prone to combustion and explosion, causing fire and other hazards. It is very important to use hydrogen alarms reasonably and correctly. According to GBT50493-2019, the horizontal distance between a hydrogen detector installed in a closed factory building or a poorly ventilated area and any release source within its coverage range should not be greater than 5m; The horizontal distance between a hydrogen detector located in an outdoor or open factory building and any release source within its coverage should not be greater than 10m, and hydrogen detectors should also be installed at the highest point in the factory where hydrogen is prone to accumulation. In addition, there are requirements for the installation height of the hydrogen alarm. Due to the fact that the specific gravity of hydrogen and air is much less than 0.8 and lighter than air, the hydrogen alarm should be installed within 2.0m above the release source, and there should be no impact, vibration, strong electromagnetic interference, and easy maintenance.
