the pipe is too small!

even if there are only 1 burners in each interface, the designed exhaust air volume of each burner is 2511m? /h calculation, the total exhaust air volume is at least 17511m? /h, the wind speed has reached more than 21m/s! A little exaggerated!

if the normal wind speed is 11~12m/s, this duct will exhaust 9111~11111m? /h look!

if you don't provide the exhaust air volume, others can't help you choose the fan!

when selecting a fan, you must provide at least two parameters, namely, exhaust air demand and system pressure (which can be estimated according to the cross-sectional area of the air duct)!