JP2005055048A5 - - Google Patents

Claims (5)

Combustion device having a burner and a blower, a fuel supply amount adjustment means for increasing and decreasing the fuel supply amount, a rotation speed adjustment means for increasing and decreasing the rotation speed of the blower, and a flow passage area of the ventilation path connecting the burner and the blower When a flow passage area adjusting means is provided and the fuel supply amount is reduced to reduce the combustion amount, the rotational speed of the blower and the flow passage area of the ventilation path are reduced, the fuel supply amount is increased and the combustion amount is reduced. If the combustion amount is changed in a combustion device that increases or decreases the rotational speed of the blower and the flow path area of the ventilation path, the rotation speed of the blower is changed. Change the blower rotational speed and air flow so that the static pressure of the combustion air that changes due to the relationship between the "air volume" that changes due to the change in speed and the "flow area" that changes due to the flow area adjustment means does not decrease. Road surface Combustion apparatus which performs increase or decrease of the air passage flow area and blower speed, characterized by defining an order of the changes. In the combustion apparatus which increases / decreases the blower rotational speed and the ventilation passage flow path area according to claim 1, when increasing the combustion amount, the rotational speed increase is first output to the blower rotational speed adjusting means, A combustion apparatus for performing increase / decrease in fan rotational speed and ventilation path flow path area, characterized in that control is performed to delay the output of flow path area increase with respect to the area adjusting means. The combustion apparatus for increasing or decreasing the blower rotation speed and the ventilation passage flow passage area according to claim 2, wherein the time required to change the rotation speed of the blower when changing the combustion amount is determined by the flow passage area adjusting means. If the combustion device is longer than the time required to change the passage area of the passage, when increasing the combustion amount, first output the rotation speed increase to the blower rotation speed adjusting means, A combustion apparatus for performing increase / decrease in fan rotation speed and ventilation path flow path area, characterized in that control is performed to delay an output of flow path area increase with respect to the road area adjustment means. In the combustion apparatus which increases / decreases the blower rotation speed and the ventilation passage flow passage area according to claim 1, when the combustion amount is reduced, the flow passage area reduction means is first outputted to the flow passage area adjusting means, and the blower is provided. A combustion apparatus for performing increase / decrease in fan rotation speed and ventilation path flow path area, characterized in that control for delaying output of rotation speed reduction to rotation speed adjusting means is performed. 5. The combustion apparatus for increasing or decreasing the blower rotational speed and the ventilation passage flow passage area according to claim 4, wherein the time required for changing the flow passage area of the ventilation passage by the flow passage area adjusting means when changing the combustion amount. If the combustion device is longer than the time required to change the rotational speed of the blower, when reducing the combustion amount, first output the flow area reduction to the flow area adjustment means, A combustion apparatus for performing increase / decrease in fan rotation speed and ventilation path passage area, characterized in that control is performed to delay the output of rotation speed reduction to the fan rotation speed adjusting means.