| 摘要 |
PURPOSE: An apparatus for recovering combustion air for a heating furnace is provided to control the feeding amount of combustion air in order to apply an inverter control mode and diffusion control in normal state, thereby reducing power consumption using only a required power for providing the optimal amount of the combustion air. CONSTITUTION: An apparatus for recovering combustion air for a heating furnace(100) includes a pressure discharge control(520), a discharge control(510), a diffusion valve(530), a low pressure control line, and two pressure automatic valves(550,560). The pressure discharge control and discharge control between the furnace and a pressure sensor(200) control the pressure inside the furnace. The diffusion valve is connected to the discharge control. The low pressure control line connects the discharge control and two blowers feeding the combustion air to the furnace. The pressure automatic valves are respectively installed between the discharge control and the blowers. When the pressure inside the furnace measured by the pressure sensor exceeds a predetermined pressure, hot air is controlled to be diffused or recovered. |
