There are only a lot of aspects of flue gas denitrification. Today, I would like to introduce the numerical calculation of SCR flue gas denitrification reactor and its connecting flue gas duct, mainly focusing on the following aspects. Let's learn about them together.

(1) Optimization analysis of SCR flue gas denitrification reactor and its connecting flue gas

The possible arrangement of SCR flue gas denitrification reactor and its connected flue gas is analyzed under the current limited arrangement condition, and other factors such as load and thermal deformation are considered comprehensively, so as to determine the relatively good arrangement.

(2) Design optimization of guide vane

For the above arrangement scheme, the position and shape of the guide vane are set and improved to make the velocity deviation of the upper surface of the first layer catalyst reach less than l0% required by the catalyst.

(3) Ammonia spraying grid optimization design

Due to the amount of ammonia/air mixed gas relative to the smoke volume is quite small, so in the above satisfy the velocity distribution conditions, by adjusting the ammonia injection grid relative flow rate to jet hole size, can under certain conditions to satisfy the first layer on the surface of the catalyst on NH 3 / NOx mole ratio of standard deviation request, usually for less than 5%.

(4) Variable-Condition analysis

For flue gas denitrification engineering, the set denitrification efficiency is usually required to be achieved under the condition of 50% ~ l000% load. Therefore, it is very important to analyze the changes of velocity and ammonia distribution when load changes. Through the numerical calculation of flow field under variable load conditions, the arrangement of flue and guide vanes can be further optimized, so that the target can be achieved under any working conditions.