COMBUSTION SYSTEM INCLUDING EXHAUST GAS RECIRCULATION UNIT USING EJECTOR

摘要

A combustion system having an exhaust gas recirculation unit using an ejector is provided to reduce the operating cost and remove noise in driving a blower, to simplify the system and reduce the installation cost by directly circulating hot exhaust gas at the ejector, and to lower possibility of exhaust gas leakage by removing middle connecting units. A combustion system comprises a combustion unit(100) supplied with fuel and oxidizing agent to burn; an exhaust line(300) for discharging exhaust gas generated at the combustion unit; a branch line(220) branched from the exhaust line; and an exhaust gas recirculation unit(200) circulating a part of exhaust gas to the combustion unit. The exhaust gas recirculation unit includes an ejector(210) installed on one supply line about the fuel or the oxidizing agent to pass a fluid and formed with an exhaust gas suction unit(213) between an inflow unit(211) and an outflow unit(212) to be connected with the branch line.