JPH07217821A - Oil burner - Google Patents

Abstract

PURPOSE:To manufacture a burner in which smooth igniting and efficient burning can be executed. CONSTITUTION:Fuel tubes are partly aligned in parallel. Solenoid valves 1, 2 are installed at the one tube, and an orifice 3 is installed at the other tube. At the time of ignition, the valves 1, 2 are opened to increase an oil supply amount, thereby improving ignitability. At the time of normal burning, the valves 1, 2 are closed, and supply oil is limited by the orifice 3, thereby efficiently burning it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil burner device which burns oil having a high pressure sprayed from a nozzle.

[0002]

2. Description of the Related Art An oil burner sends oil pressurized by an oil pump to a spray nozzle and sprays it from the nozzle to improve mixing of fuel and air for combustion, but when ignited, there is a large amount of ventilation. In some cases, due to the low injection pressure, ignition could not be smoothly performed, resulting in misfire. Increasing the amount of refueling lowers the air ratio and increases the injection pressure, so the fuel becomes more atomized and easier to ignite, but in that case, unburned fuel is generated and fuel efficiency decreases. Becomes

[0003]

A burner capable of increasing the amount of oil supply during ignition and decreasing the amount of oil supply during continuous combustion to produce smooth ignition and efficient combustion is manufactured.

[0004]

[Means for Solving the Problems] The middle of a pipe from an oil pump of a fuel pipe to an oil nozzle is branched into two, one pipe is provided with a second solenoid valve, and the other pipe is provided with an orifice. Install the first solenoid valve after merging. Open both solenoid valves, set the oil pump discharge pressure so that the injection from the burner nozzle is in a state suitable for ignition when operating the oil pump, close the second solenoid valve, and the oil supply path is only on the orifice installation side. In this case, the orifice is provided so that the amount of oil supplied is suitable for continuous combustion. When igniting, operate the oil pump, open the two solenoid valves to ignite, close the second solenoid valve after the ignition operation is completed, and reduce the hydraulic pressure by burning only the orifice installation side I do.

[0005]

[Operation] At the time of ignition, the second solenoid valve is opened and the fuel is sent to the burner through the solenoid valve side passage, so that the hydraulic pressure can be increased, and the fuel injected from the nozzle is atomized into extremely fine particles and ignited. Cheap. It is unlikely that it will disappear after the combustion has started. By closing the second solenoid valve and passing it through the orifice, the amount of refueling is reduced and unnecessary fuel supply is eliminated.

[0006]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram showing an outline, in which an oil pump (4) is connected to the oil supply pipe, the oil supply pipe on the discharge side of the oil pump is branched into two, and a second solenoid valve is provided in one pipe. (2)
And install the orifice (3) in the other pipe. The two pipes are merged again to form one pipe, and the first solenoid valve (1) is installed in the middle of the pipe and connected to the spray nozzle (5). An ignition rod (6) of an ignition device is installed near the tip of the spray nozzle, and the first electromagnetic valve, the second electromagnetic valve, the oil pump, and the ignition device are connected to the combustion control device (7). Combustion control is controlled as shown in the time chart of FIG. When the combustion switch is turned on and the prepurge is completed and ignition is performed, the oil pump operates, the first solenoid valve and the second solenoid valve are opened, and fuel is sent to the spray nozzle of the burner. At this time, the pressure on the spray nozzle is high, and very fine atomized fuel is injected from the spray nozzle, and the spark from the ignition rod reliably ignites. When the ignition process is over, the second solenoid valve is closed, and the oil is sent only from the side where the orifice is installed.
The amount of fuel suitable for continuous combustion is supplied.

[0007]

By implementing the present invention, ignition can be easily performed, and efficient combustion can be performed without wasting fuel during continuous combustion.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a time chart of an embodiment of the present invention.

[Explanation of symbols]

 1 1st solenoid valve 2 2nd solenoid valve 3 Orifice 4 Oil pump 5 Injection nozzle 6 Ignition rod 7 Combustion control device

Claims (1)

[Claims] 1. An oil pump is provided in the oil supply pipe to the burner, the oil supply pipe is branched into two at the oil pump discharge side, a second solenoid valve is provided in one of the branched pipes, and an orifice is provided in the other pipe, An oil burner device characterized in that a first solenoid valve is installed in the middle of the pipes after joining the branch pipes and connected to a spray nozzle.