Application Research on Increasing Efficiency and Reducing Nitrogen in Gas Boiler
In order to efficiently apply the by-product gas of oil shale refining,the operation status of a certain gas heating boiler was evaluated from the perspective of thermal balance.The calculation results showed that the boiler had problems such as low combustion temperature,incomplete combustion with high heat loss,high exhaust gas temperature,and excessive nitrogen oxide emissions.To address the above issues,a numerical simulation method was used to study various layout schemes of burner.The results show that increasing the number of burners and arranging the burner nozzles on the vertical centerline will enhance the uniformity of temperature distribution in the furnace,and the NO emission value at the furnace outlet will decrease.After comprehensive consideration,the gas nozzle and burner centerline are arranged at a 90° angle as the optimization plan.
gas boilernumerical simulationburner layoutcombustion characteristics
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