| High temperature air combustion (HTAC) technology, which is a new type combustion technology with advantages of both highly energy saving and low pollutant emissions, is more attended in the fields of science and industry. To develop this technology accords with the situation of our country.This project is a national 973 item. Studied on a set of self-designed regenerative combustion system, choosing several parameters: primary air 0.15, 0.3 andO. 45; secondary air 1.2, 1.4 and 1.8; switching time 60s, 90s, 120s and 360s. Observed and measured in the three configurations that are fuel (and primary air)/2nd air parallel flow, counter flow and fuel-steadiness on the kiln. Arranged 31 thermal couples, diameter 0. 5mm. Measured temperature with self-program software. Calculated system heat exchanging and measured pollutant emission in order to get optimal work situation.The temperature of waste fume are reduced from 200℃ to 60℃ in order to increasing recovery rate of waste heat further In HTAC. Because calculated dew point of gas is about from 85℃ to 110℃, so we should consider low temperature corrosion. Discussed taking advance condensation heat of water in waste fume. At the same time, the water can absorbed several pollutants in waste fume.Emphases on reducing nitrogen oxide emission. Analyzed switching process affect on oxygen content, temperature in HTAC. Compared different on oxygen content, temperature under three configurations. Discover that nitrogen oxide emission is lower outstanding in the fuel /2nd air counterflow configuration than other two configurations and try to discuss this reason. This study is brought forward to guide the work for the future.
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