What measures can be taken to effectively prevent hydrogen burner flashback?

What measures can be taken to effectively prevent hydrogen burner flashback?
The method to prevent flashback in hydrogen burners is based on the premise of reducing flame propagation speed, increasing the outlet speed of the mixture, and ensuring a uniform velocity field. The tempering measures taken during installation and production mainly include the following aspects:
1. Choose a reasonable combustion method based on the properties of the gas. For gases with fast flame propagation speed (gases with high hydrogen content), atmospheric combustion and flameless combustion should not be used.
When using dirty gas, purification devices (such as filters) should be installed. When the purification device still cannot prevent scaling of the gas nozzle and mixing pipe, the combustion device should be descaled or adopt a structure that is easy to remove dirt, and a regular cleaning operation system should be established.
3. When using water containing gas, a water separator should be installed to avoid freezing the gas nozzle and mixing pipe in cold weather.
When the furnace is operating at low load, some burners should be turned off to ensure that the operating burner load is not lower than the allowed minimum load.
During this process, the minimum pressure value should be specified based on the nature of the gas and the form of the burner. When the gas pressure drops to the lower limit, the operation should be stopped to ensure that the outlet velocity of the gas air mixture is not less than the flame propagation velocity.
6. According to the properties of the gas, the structure and process of the burner, if flashback occurs due to the high temperature at the burner head, the burner head can be cooled to reduce the flame propagation speed.