REGENERATIVE OXYFUEL COMBUSTION SYSTEM WITH FUEL PARTIAL PREMIXING AND COMBUSTION METHOD

摘要

The present invention relates to a partial premixing type thermal storage oxy-fuel combustion apparatus and a combustion method using the same. More specifically, the present invention relates to a partial premixing type thermal storage oxy-fuel combustion apparatus which comprises: a combustion chamber into which oxygen and fuel are injected so that combustion can be generated; a thermal storage chamber having a thermal storage body, receiving and heating exhaust gas generated in the combustion chamber in a thermal storage mode, and receiving and preheating the oxygen in a combustion mode; and a combustion nozzle installed between the combustion chamber and the thermal storage chamber, and including an oxygen nozzle channel and a fuel nozzle channel, wherein the oxygen nozzle channel allowing the part of the oxygen preheated in the thermal storage chamber in the combustion mode to be injected into the combustion chamber and allowing the exhaust gas generated in the combustion chamber in the thermal storage mode to flow into the thermal storage chamber; and the fuel nozzle channel installed to be separated from the oxygen nozzle channel at a certain distance, receiving the fuel thereinto through a fuel supply pipe, premixing the fuel and the rest of the oxygen after receiving the rest of the oxygen preheated in the thermal storage chamber, and allowing the exhaust gas to flow into the thermal storage chamber in the thermal storage mode.