JPH01107007A - Burner - Google Patents

Abstract

PURPOSE:To eliminate the generation of blowing out of a liquid fuel combustion device, or fluctuating combustion and obtain stabilized combustion status by mixing liquid with air under extremely atomized state, using a fog generating means, such as a supersonic oscillation means. CONSTITUTION:A float 15 is accommodated inside a liquid level control vessel 13 so as to maintain constantly a specified amount of fuel inside said vessel 13. A vibrator 17 connected to a supersonic oscillation circuit 16 is laid out on the bottom of the liquid level control vessel 13. The oscillation magnitude varies with a control current input from an oscillation magnitude control circuit 18. A variable resistor 21 connected to the oscillation magnitude control circuit 18 is adapted to control the amount of fuel to be atomized in proportion with a specified fire power. The fuel stored inside the liquid level control vessel 13 is turned into fine particles and is supplied to a burner section by way of an atomized fuel supply pipe 14. Therefore, the fuel is easily mixed with air, thereby enhancing combustion efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to various combustion devices such as burners and stoves, and more specifically, to improving the combustion efficiency of combustion devices using liquid fuel.

2. Description of the Related Art Conventionally, this type of combustion apparatus has been known as shown in FIGS. 3 and 4. First, the conventional example shown in FIG.
In the fuel supply path 1, air supply path 2, and confluence area 3, liquid fuel comes into contact with air and forms a group of fine oil droplets. Further, in the figure, 4 indicates the flame propagation area of the oil droplet group, and 5 indicates the diffusion fuel of the fuel vapor. A portion of the high-temperature gas generated by such fuel is recirculated to the vicinity of the merging region 3 to hasten the contact between unburned oil droplets and air.

Furthermore, the conventional example shown in FIG. 4 is the same as the conventional example described above with an air swirling vane 6 added to the configuration, and is designed so that a circulating flow of high-temperature gas is generated in front of the nozzle 1a of the fuel supply path 1. ing.

Problems to be Solved by the Invention However, in both of these conventional examples, the liquid fuel is not finely divided into mist but becomes small oil droplets, so the contact area between air and fuel is small. However, there were problems with combustion efficiency.

In addition, in the conventional example shown in Fig. 3, the maximum air flow velocity is limited by the speed of flame propagation within the fuel spray.
It is difficult to perform high-load combustion, and has the problem of easily causing blowout and oscillating combustion.

Means for Solving the Problems Therefore, the present invention provides a fuel supply passage for delivering fuel, an air supply passage for delivering combustion air, and a merging area where both supply passages meet to produce an air-fuel mixture. and an ignition region for combusting the air-fuel mixture, the fuel being finely atomized by a mist generating means.

action The fog generating means turns the fuel into fine atomized particles.

The atomized fuel mixes easily with air, increasing combustion efficiency.

EXAMPLE Hereinafter, an example in which a combustion device according to the present invention is applied to a burner will be described based on the drawings.

FIG. 1 is an explanatory diagram showing ultrasonic oscillation means as a mist generation means for atomizing fuel.

In the figure, 11 is a fuel tank, which allows fuel to be transported to a liquid level adjustment container 13 via a fuel transport vibrator 12. Further, a fuel pump 14 is disposed in the middle of the fuel transport pipe 12.

The liquid level adjustment container 13 has a substantially rectangular parallelepiped shape, and the tip of the fuel transporting vibrator 12 is fixed to the approximately center of the upper end surface +3a of the container 13 in a hanging state.

Further, an atomized fuel supply pipe 14 is provided in communication with the upper end surface 13a of the container I3.

A float 15 is housed in the liquid level adjustment container 13, and a guide rod 15a is vertically provided at the center of the upper end surface of the float I5. This guide rod 15
a is a fuel transporting vibrator 1 hanging inside a liquid level adjustment container 13;
2 and the float 15 floats, the upper end surface of the float 15 closes the lower end opening of the fuel transport vibrator 2 to prevent the inflow of fuel, and when the float 15 lowers, the inflow of fuel is blocked. This allows a constant amount of fuel to be kept in the container 13 at all times.

In addition, an ultrasonic oscillation circuit I is provided at the bottom of the liquid level adjustment container I3.
A vibrator 17 to which 6 is connected is disposed. This ultrasonic oscillation circuit 16 is connected to an oscillation intensity control circuit I8, receives a control current from the circuit 18, and receives a control current from the oscillation intensity control circuit I8.
The oscillation intensity is changed. In the figure, reference numeral 19 denotes a power source, which is used to change the constant voltage of the battery 20 to a desired voltage according to the oscillation intensity of the ultrasonic oscillation circuit 16.

Furthermore, a variable resistor 2J is connected to the oscillation intensity control circuit (18), so that the amount of fuel to be atomized can be adjusted according to the required thermal power.

Due to the ultrasonic oscillation means as a fog generation means including the vibrator 7, the fuel in the liquid level adjustment container 13 becomes fine atomized particles, which are sent to the burner section A via the atomized fuel supply pipe 14. transported to.

Next, the configuration of the burner section A will be explained based on FIG. 2.

As described above, the fuel atomized by the ultrasonic oscillation means is supplied to the burner section A through the atomized fuel supply pipe 14, and introduced into the fuel supply path 22 formed in the burner body a. An air supply pipe 23 is arranged from the side of the burner body a. Note that the air supply pipe 23 is
An air supply passage 24 formed in the burner body a communicates with the fuel supply passage 22, and the air supply passage 24 is formed to join the fuel supply passage 22 from diagonally rearward in the fuel supply direction. Further, the atomized fuel supply vibe 14 is provided with a supply valve 14a, and the air supply pipe 23 is provided with an air adjustment valve 23a. In addition, in the figure, 25 indicates a burner tile, 26 indicates a burner front plate, and 27 indicates a furnace shell steel plate.

Although the present invention has been described above as applied to a burner, it is of course applicable to various other combustion devices. Also,
The present invention is not limited to the above embodiments, and various design changes can be made depending on the gist of the configuration. That is, in this embodiment, an ultrasonic oscillation means is used, but the mist generation means is not limited to this, and can take various embodiments, such as an automatic sprayer, for example.

Effects of the Invention As is clear from the above explanation, in the combustion device according to the present invention, since the fuel is mixed with air in a finely atomized state by the mist generating means, it depends on the flow velocity of the air, etc. Therefore, blowout and oscillating combustion are eliminated, and a stable combustion state can be obtained.

Furthermore, since the fuel is made into fine particles, it has the effect of improving combustion efficiency unprecedentedly.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an ultrasonic oscillation means as a fog generating means of a combustion device according to the present invention, Fig. 2 is a sectional view showing a burner section, and Figs. 3 and 4 are explanatory diagrams showing a conventional example. It is a diagram. 13...Liquid level adjustment container, 16...Ultrasonic oscillation circuit,
17... Vibrator. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A fuel supply path for delivering fuel, an air supply path for delivering combustion air, a merging area where both of the supply paths meet to produce a mixture, and an ignition area where the mixture is combusted. A combustion device characterized in that the fuel is finely atomized by a mist generating means.