Venting of the hydrogen pipeline safety valve
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Where does the safety valve of the hydrogen pipeline vent to? Can a flame arrester be added to vent directly to the atmosphere? Is it dangerous if a combustible gas safety valve vents directly into the atmosphere? If there is oxygen in the pipeline downstream of the safety valve, could high gas flow rates cause an explosion or a fire?
Hydrogen can be directly released into the atmosphere, but it is prone to catching fire during thunderstorms; other flammable gases cannot be released into the atmosphere and are generally sent to low-pressure flare systems or can also be fed into gas recovery systems
The amount of hydrogen used is very small, and the plant does not have a flare system
It can be directly released into the atmosphere; an inert gas or steam pipeline should be added to the exhaust line to prevent combustion from occurring during the release of hydrogen, allowing the gas to be used to extinguish any fires that might arise in a timely manner
There is an article online that can serve as a reference: Measures for the Safe Emission of Flammable Gases or Vapors_Baidu Wenku https://wenku.baidu.com/view/cce38729dd36a32d73758161.html