| 摘要 |
PURPOSE: A dual air exhaust pipe of a boiler for blocking the back flow of exhaust is provide to prevent the performance degradation and malfunction of a boiler due to the back flow of exhaust and to prevent a short circuit by minimizing the back flow of the exhaust. CONSTITUTION: A dual air exhaust pipe of a boiler for blocking the back flow of exhaust comprises an air exhaust pipe(1) and an air intake pipe(2). The air exhaust pipe comprises a connection unit(11) and a plurality of air exhaust holes(12) which are connected to a boiler and discharges exhaust to the outside from the boiler. The air intake pipe comprises a plurality of rectangular air intake supply holes(21) by the bottom; is installed on the outer surface of the air exhaust pipe at a regular interval; and supplies external air into the boiler through an air intake adapter(22) in response to air suction. The air exhaust holes which are punched in the outer end of the air exhaust pipe differs the discharging direction of the exhaust and the suction direction of air intake by partly punching the air exhaust pipe. |
