| 摘要 |
PURPOSE: A heat exchanger having a cleaning function is provided to prevent foreign substances from adhering to the surface of the heat radiation pipe, thereby improving heat exchange efficiency. CONSTITUTION: A first fluid inlet(12) and a second fluid inlet(14) are formed on one side of a closed hollow housing(11). A first fluid outlet(13) and a second fluid outlet(15) are formed on the other side of the housing. A heat exchange pipe(16) is installed between the first fluid inlet and the first fluid outlet inside the housing. An air supply unit(20) having a valve which evenly supplies the preheated air to fluid flowing through the first fluid inlet into the housing in which the heat exchange pipe is positioned. A preheated air supply unit(30) which supplies the preheated air to the air supply unit is installed on the backend of the air supply unit. An air-exhaust valve(13a) is installed on one side of the first fluid outlet. |
