What Affects the Burning Velocity of Oil&Gas Fired Boilers

What affects the burning velocity of oil&gas fired boilers


The oil&gas fired boiler,as one kind of environmentally friendly industrial boiler,is widely used in food industry,pharmaceuticals industry, hotels ,schools, etc.We should understand the factors affecting its burning velocity to help us organize and control the burning processes better.The factors mainly consists of the following aspects:


The temperature


The influence of temperature on the burning velocity is extremely significant.The combustible element in the fuel and oxygen is also carrying on the slow oxidation reaction at room temperature,but we cannot feel the temperature rise,when the temperature is higher,the chemical reaction is very fast,high temperature flue gas is produced continuously,this is burning.The burning velocity and temperature perform the exponential function relationship.Therefore, the higher the temperature inside the furnace,the more intense the burning is,if the furnace temperature is low,the burning will be slow,even the stable combustion can't be guaranteed.


The concentration and pressure


The combustion of liquid fuel and gas fuel in the furnace belongs to chemical reaction process,when the concentration of reactant (fuel and air) increases,the chemical reaction will quicken because of the increase of molecule collision.In addition, the change of pressure can also cause the change of concentration,so,the pressure has a direct effect on the burning velocity.


The mixture of fuel and oxidizer


A certain mixing ratio of fuel and oxidizer can make the chemical reaction rate reach the highest value.Due to the combustion temperature is also associated with the mixture ratio,the effect of mixing ratio on the chemical reaction rate is more increased.


Other inert ingredients in the mixture


The inert ingredients such as nitrogen not only reduce the concentration of the reactants,but also reduced the effective collision of the reactants,which leads to the decline of...