JPH02146403A - Burning apparatus - Google Patents

Abstract

PURPOSE:To reduce the NOx by disposing a plurality of air ejecting holes in the periphery of opposed air ejection nozzles to oppose to each other. CONSTITUTION:For the burning operation, a fan 10 is first started and an ignition electrode rod is caused to spark. A compressor 11 is then started and a solenoid valve 12 opened, whereupon an internal pressure is applied to a constant oil level valve 7 to cause the fuel to be ejected through a fuel fed pipe 6 and the air through an air feed pipe 8. The fuel and air are mixed and ejected out of air ejection nozzles 3, which is ignited by the spark. By disposing the air ejection nozzles to oppose each other, the burning is sustained while the ejected jets collide and mix so as to form a flat flame in the center of the burning chamber 1. Furthermore, by disposing a plurality of air ejection holes in the periphery of the air ejection nozzles to oppose each other, the burnt gas and the unburnt gas are mixed while the fresh air is supplied to the flame surface to cool the flame so as to activate the burning while the NOx is reduced at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a combustion device for burning gas or oil.

(Prior Art) Conventionally, as shown in, for example, Japanese Unexamined Patent Publication No. 48-42424, a liquid pressure spraying device and a vaporized gas blowing device are opposed to each other, and the mixed gas sprayed from both devices is made to collide with each other. Combustion devices that perform combustion through strong turbulent diffusion mixing are known.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional device, only a single nozzle and a single air hole are opposed, so it is difficult to atomize the fuel, and good combustion is still not achieved. It was difficult to get caught.

Furthermore, no consideration was given to human control, and the fuel injection amount could not be adjusted.

Therefore, the present invention was made in view of the above-mentioned difficulties, and in particular, the fuel is atomized to stabilize combustion, and in particular, N
It is an object of the present invention to provide a combustion device that can significantly reduce Ox and can be easily controlled manually.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention arranges air injection nozzles that merge fuel and air and inject them opposite each other in the center, and each of the air injection nozzles In a device equipped with an air cylinder having a plurality of air nozzles that eject combustion air into the surrounding area, the air nozzles of both air cylinders are opposed to each other so that the air emitted from each nozzle collides with each other. This is what was installed.

(Function) In the present invention, the fuel is atomized by facing each other with a plurality of air injection ports provided around the air injection nozzles facing each other, and the fuel is atomized and burns appropriately. They mix and form a flat flame in the center of the combustion chamber. At this time, a circulation effect occurred inside the flame, and at the same time, fresh air was supplied to the flame surface, making it possible to significantly reduce NOx.

(Example) Examples of the present invention will be specifically described below based on the drawings.

(1) is a combustion chamber, and (2) is a burner, which are provided as a pair opposite to each other on the side surface of the combustion chamber (1).

As shown in FIG. 2, this burner (2) has an air injection nozzle (3) arranged in the center for combining fuel and air and injecting the mixture. This air injection nozzle (3) faces two
They are made into a pair. Around each air injection nozzle (3) is an air outlet (4) that blows out combustion air.
An air cylinder (5) having a diameter is provided. Air outlet (4)
A plurality of flJs are provided surrounding the air injection nozzle (3),
And they are arranged on the same circumference. Further, the air jet ports (4) are arranged to face each other so that the air emitted from the respective jet ports collide with each other. Air injection nozzle (3
) is connected to the curved well [7] via an oil pipe (6) and is supplied with fuel. (11) is a compressor, and injection air is supplied to the air injection nozzle (3) via a solenoid valve (12) and a blow pipe (8).

On the other hand, from the compressor (11) to the air pressure control valve (9)
) is connected to the curved borehole (7) via a pressure pipe (15). Also, combustion air is supplied by a fan (10) through an air pipe (16), and the air amount is an air pressure of $1! It is controlled in conjunction with the control valve (9).

The fuel node A is controlled by the signal from the input rate control device (13), by simultaneously interlocking the pneumatic rate control valve (9) and the fan damper drive device (14), t, If fil L, and empty smoke according to the input. The ratio is set to yj4.

91 (For example, it is better to perform interlocking control depending on the strength of the input terminal value.

During combustion, first start the fan (10) and use the ignition rod! Spark I [(not shown). This ignition electrode rod is preferably provided in each burner to ensure ignition.

Next, the compressor (11) is driven and the solenoid valve (12)
When opened, internal pressure is applied to the curved surface-bored well (7), and the oil pipe (
6), fuel is injected, and air is discharged through the blast pipe (8).

The fuel and air are then injected from the air injection nozzle (3) to ignite the spark described above. The ignited flames collide with each other, but in wood, the fuel is atomized by the air and has a strong mixing effect. Furthermore, by moving the two city air injection nozzles relative to each other, they collide and merge while continuing to maintain combustion.
A flat flame is formed in the center of the tsuboyaki chamber (1). Furthermore, by arranging several 1M air outlets provided around both city air injection nozzles to face each other, fresh air is supplied to the flame surface, cooling the flame and mixing unburnt gas and burnt gas. , t-burning can be activated without reducing NOx.

(Effects of the Invention) As described above, the present invention has air injection nozzles facing each other that merge and inject fuel and air arranged in the center, and injecting combustion air around each of the air injection nozzles. In a device equipped with an air cylinder having a plurality of air outlets to be blown out, the air injection ports of both air cylinders are arranged to face each other so that the air coming out of each air injection port collides with each other. NO
Not only was it possible to make x into a large medium with a low IJ, but also good combustion could be obtained. In addition, the combination of the compressor and the oil surface-well drilling is facilitated, input control is easy to perform, and the combustion range is expanded.

[Brief explanation of the drawing]

FIG. 1 is an overall view showing one embodiment of the present invention, and FIG.
FIG. 3 is an enlarged view of the main part of the figure, and FIG. 3 is a right side view of FIG. 2. (1) ... Combustion chamber (2) ... Burner (3) ... Air injection nozzle (4) ... Air injection port (5) ... Air cylinder (10) ... Fan (! 1) ...Compressor

Claims (1)

[Claims] An air injection nozzle for combining and injecting fuel and air is arranged opposite to each other in the center, and an air cylinder having a plurality of air injection ports for ejecting combustion air is provided around each air injection nozzle. A combustion device characterized in that the air jet ports of both air cylinders are arranged opposite to each other so that the air emitted from each jet port collides with each other.