Research On Heat Transfer Characteristics Of Regenerative Body In Regenerative Burner

Nowadays,with the continuous increase of the total number of people in the world and the increasing demand for scientific and technological progress,the demand for energy consumption is also increasing,which consumes energy and increases pollutant emissions.In the early 1990 s,a new type of combustion technology called high-temperature air combustion technology was proposed,which was a method of combining the multiple advantages of hightemperature flue gas waste heat recovery and reuse,reducing pollutant emissions and improving combustion efficiency.The regenerator is used as the core component in high-temperature air combustion technology.With the help of a regenerative burner,the relationship between the heat exchange characteristics of the regenerator and the regenerator is analyzed,the heat exchange process between the gas inside the regenerator and the regenerator is discussed,and the temperature of the regenerator and the outlet of the regenerator are discussed.The temperature was numerically simulated.By changing the structural parameters and operating parameters,the changes of the temperature of the heat storage body and the resistance loss of the heat storage chamber are analyzed.In the study of changing the structural parameters of the regenerator,except that the local temperature at the inlet and the outlet is too high,the temperature of the gas changes relatively uniformly during the entire heat exchange process,and the resistance loss of the regenerator shows a regular increase or decrease small.In the case of changing the influence of operating parameters(gas flow rate,regenerator height,reversing time)on the resistance loss and thermal efficiency of the regenerator,it is not possible to test every situation,by numerical simulation and orthogonal The combined test method uses the simulation software ANSYS to establish a physical model and a mathematical model of heat transfer and gas flow for the key components inside the regenerator.Through the above analysis,the heat exchange characteristics of the heat storage body arestudied with factors such as the flow rate,material,size change and reversing time of the empty tower,and a simulation study is carried out to start the heat storage body to a stable state,and the results are obtained and analyzed.Obtained the optimal working condition combination parameters including heating,heat storage temperature when the heat release reaches a stable state,resistance loss of the regenerator,higher comprehensive heat transfer coefficient and lower pressure loss,as well as structural parameters and operation The effect of parameters on the gas outlet temperature.By establishing the energy balance between the gas microcells and the heat storage microcells,the regular characteristics of the heat storage body during the absorption and release phases are obtained.In order to increase the rate of heat storage and heat release,heat exchange is strengthened by changing the gas flow rate,the size of the heat storage body and the arrangement method,so that the temperature efficiency and heat transfer efficiency of the heat storage chamber of the heat storage body are effectively improved.Furthermore,the selection of the resistance pressure drop inside the regenerator to the energy consumption of the fan and other power equipment of the entire system is analyzed.All factors should be fully considered when designing the regenerator.This paper uses the heat storage characteristics of regenerators to provide some guidance for the research object to the practical application and structural optimization of regenerative burners.