boilers

1 adequate heat absorbing surface can make a full use of the heat of the fuel through working medium. 2 the temperature of the furnace chamber and the disturbance of smoke in high heat section are improved ,so to reduce the loss of heat and flying dust resulted from the incomplete combustion of fuel. 3 to make sure the complete combustion of fuel and to improve amooth operation of the furnace grates and adequae working sueface . 4 to increase the heat conducting rate thus resulting in the increasing of heat efficiency by rearrange the convection tubes.