Regarding the design of the burner
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We upgraded our stove by replacing its burners with ones that burned purely on gas. After the replacement, we found that the flame intensity was not sufficient, so we sent the burners back to the manufacturer for modification. The manufacturer simply enlarged each hole in the burner; the size of these holes after enlargement was almost three times that of the original holes. As a result, the burner worked in such a weak manner, similar to that of a torch, and it was even worse than before the modification. I think the manufacturer’s approach was unreasonable, but they blamed us for not providing the correct parameters. What do you all think?
Neither of you is being serious; the parameters must be determined before drilling starts.
With the parameters set, the flux after the modification is indeed large enough, but the holes are too big – as big as a child’s nostrils
After changing the gas, the hole size must increase. To produce the same heat value, the amount of gas required is several times, or even more, than that of oil. Therefore, it is normal to increase the aperture appropriately based on the calculations.
Is it possible to increase the number of holes without increasing their diameter? After increasing the aperture, the combustion in the burner became significantly worse – it was either weak and ineffective or the flame would go out. I think the reason is that a larger aperture leads to poor mixing of gas and air; to put it another way, it’s like a kettle and a showerhead……
I’m not very familiar with equipment-related knowledge; I personally think that factors such as too low pressure or insufficient gas supply might be causing poor combustion
Part of the reason is that the holes are too large, causing a significant drop in pressure as the gas enters the burner； When the pressure is increased, the gas flow velocity becomes too fast, resulting in uneven mixing with air and causing flame separation and extinguishment.
Generally, when adjusting the gas flow rate, the air parameters also need to be adjusted. Flameout occurs when the gas pressure is too high and the flow rate is too fast!! Adjusting the pressure will solve this issue. As for NOx, the more nozzles there are, the less NOx is produced
It is necessary to take into account various factors such as the pressure and flow rate of the gas, the volume of the furnace chamber, and the length of the flame. It would be best to conduct a dynamic field experiment; with these relevant data, modifying the burner may yield better results
No matter how I adjust the pressure, it doesn’t work properly: if I lower it, it’s too soft; if I increase it, there’s a loss of pressure. It’s like a teapot – no matter how I adjust it, I can’t achieve the same effect as a shower head
Have the manufacturer provide test reports on opening size, pressure, flow rate, etc.; one cannot decide the size based solely on experience.