Abstract
The air preheater of coal-fired units has the problem of ash blocking. Combining the working principle and ash blocking mechanism, FLUENT uses the porous media model to simulate the air preheater, and the corresponding mass flow rate at different speeds or air side inlets is obtained. The temperature results are compared and analyzed, and a reasonable air preheater is used to reduce ash clogging.
Highlights
The rapid development of social economy has led to an increase in energy demand year by year
The air preheater has the problem of ash blocking
Taking the three-division silo rotary air preheater of a 310MW coal-fired power plant as the research object, the geometric model of the air preheater is established based on the actual situation, and the FLUENT software is imported for analysis and solution
Summary
The rapid development of social economy has led to an increase in energy demand year by year. My country's energy structure is still dominated by coal. Many power plants consider various aspects to improve power generation efficiency and reduce environmental pollution caused by coal burning. The air preheater has the problem of ash blocking. The serious ash blocking phenomenon increases the flow resistance, reduces the heat exchange efficiency of the air preheater, and causes an increase in air leakage, which seriously threatens the economy and safety of the unit's operation. In the actual production process, it often happens that the air preheater has to be shut down for cleaning due to serious dust accumulation. This shows that the in-depth analysis and research on the air preheater is imminent
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
