How to increase the amount of steam generated by the drum?
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Why does increasing the opening of the fan for drawing in air result in an increase in steam production? ? Still can’t figure it out? I would appreciate it if the teachers could provide a detailed explanation. Thank you
Increasing the amount of air supplied for blowing and extraction improves the combustion in the boiler, resulting in more heat generation; hence, there is more steam
By increasing the amount of air supplied for ventilation and extraction, the boiler burns more efficiently and generates more heat. Since this heat needs to be removed, more steam is produced as a byproduct
Gas production requires a heat source; as the heat source intensity increases, the gas production volume rises as well.
Has the gas consumption increased? ?
By changing the opening degree of the air intake and exhaust, what is actually adjusted is the variation in the oxygen content of the air entering the furnace as well as the change in the negative pressure within the furnace. With optimal control of the oxygen content, the higher the thermal efficiency of the heating furnace, the greater the amount of steam produced
Heat is carried away quickly; the circulation volume is high
The original poster didn’t provide very detailed information; there are no other data points available, so I can only make guesses based on the information given so far. The poster said that an increase in the opening degree of the blower and exhaust fan led to an increase in steam production; he was referring specifically to the hydrogenation reactor, with the convection section serving as a waste heat boiler. It was also assumed that before the adjustment, the combustion in the heater was normal, with no issues related to oxygen levels. If fuel consumption remains unchanged and the air flow increases, more heat is carried away by the flue gases, resulting in increased heating of the waste heat boiler and an increase in steam production ； As a result, the temperature in the furnace chamber of the heating furnace drops, as does the exit temperature of the material in the radiation section, and it is not possible to maintain these temperatures for an extended period of time. If fuel consumption increases and air flow increases, more heat is carried away by the flue gases, resulting in increased heating of the waste heat boiler and an increase in steam production ； The outlet temperature of the material in the radiation section can be maintained, with the consequence being that high-quality fuel is converted into low-quality steam, resulting in energy waste.
As the air flow increases, more heat is carried away; consequently, more heat is absorbed in the steam generation section, and thus more steam is produced