JPH0311205A - Liquid fuel combustion equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vaporizing type liquid fuel combustion device that uses petroleum as fuel.

2. Description of the Related Art A conventional vaporized liquid fuel combustion apparatus of this type was constructed as shown in FIG.

That is, a vaporizer lid 3 is integrally disposed on the upper part of the vaporizer 2 in which the heater 1 is embedded for heat transfer, and a burner portion 4 is connected to the vaporizer lid 3 through an outlet opening formed near the center thereof. . A rotor 6 was supported in the inner space of the carburetor 2 by a motor 5 provided below the carburetor 2, and a diffusion vane 7 was integrally disposed on the rotor 6. A combustion fan 8 is integrally fixed to the motor 5 below the rotor 6, and a case 9 is attached to the motor 5.
was surrounded by One end of a refueling vibrator 10 faced near the rotor 6, and the other end was connected to a refueling pump 11.

When the heater 1 is energized and the vaporizer 2 reaches a predetermined temperature, the motor 5 is driven and the rotor 6, diffusion blade 7, and combustion fan 8 are rotated. On the other hand, the fuel is supplied by the fuel pump 11
The oil is discharged onto the rotor 6 via the oil supply pipe 10, and is evenly dispersed from the outer circumference of the diffusion blade 7 and atomized by the centrifugal force of the rotating rotor 6 and the diffusion blade 7.

The atomized fuel is vaporized on the heated inner wall of the vaporizer 2 and mixed with combustion air supplied by the combustion fan 8 to form a mixed gas. The mixed residue is further uniformly mixed by the rotating diffusion vane 7, and reaches the burner section 4 through the outlet opening of the carburetor lid 3, where it is ignited and burned by an igniter (not shown).

Problems to be Solved by the Invention However, with the above configuration, when the combustion fan 8 stops for some reason, the mixed gas will flow back toward the case 9 due to the backflow vortex caused by the diffusion blades 7, and the gas will flow outside. This poses a major problem in that there is a risk of leakage and fire.

The present invention solves this conventional problem by preventing the backflow vortex caused by the diffusion vanes, thereby preventing the mixed gas from leaking outside even if the combustion fan stops, thereby preventing a fire from occurring. purpose.

Means for Solving the Problems In order to solve the above problems, a liquid fuel combustion bag 2 of the present invention is provided.
an atomization means for atomizing liquid fuel by rotation;
a vaporizer disposed to surround the atomization means; a diffusion vane disposed on the atomization means on the same axis as the exit direction of the vaporizer; a motor for rotating the atomization means; a burner section connected to the outlet section, a fuel supply means for supplying liquid fuel to the atomization means, a combustion fan for supplying air to the vaporizer and the burner section, and a combustion fan facing the diffusion vane and at the vaporizer outlet. The vaporizer has a structure in which a plurality of fixed vanes are arranged on the inner surface of the vaporizer, which extends toward the diffusion vane side and in the outer circumferential direction.

Function: With the above-described configuration, the present invention eliminates the backflow vortex caused by the rotation of the diffusion vanes through the eddy flow blocking action of the fixed vanes, and also prevents the backflow caused by the vortex.

Therefore, when the combustion fan is stopped, the mixed gas can be prevented from flowing out due to the backflow.

Embodiment An embodiment of the present invention will be described below with reference to FIG. 1 of the accompanying drawings.

In FIG. 1, a vaporizer 13 is installed on a vaporizer base 12, a mixing chamber 14 is provided above the vaporizer 13, and a burner head 15 is provided in the upper opening of the mixing chamber 14. is installed. A rotary atomizing means 16 for liquid fuel is disposed inside the vaporizer 13, and a motor 18 rotates the rotary atomizing means 16 through a blow box 17 formed at the bottom of the carburetor base 12. is fixed to the bottom of the case 19. A combustion fan 20 is disposed in a part of the ventilation box 17. Furthermore, the outside of the vaporizer 13 is surrounded by a vaporizer cover 21 and is insulated, and a refueling vibe 22 is exposed near the rotary atomizing means 16. The other end of this refueling vibrator 22 is connected to a refueling pump (not shown). At the upper end of the rotary atomizing means 16, there is a vaporizer 13 with a function of scattering and dispersing the fuel to be atomized.
A diffusion vane 23 is disposed above the diffusion vane 23 to promote mixing of the vaporized gas with air. , is composed of a plurality of fixed blades 24 arranged toward the diffusion blade 23 side and extending in the outer circumferential direction.

In the above configuration, the rotation of the motor 18 causes the rotary atomization means 16 to rotate, and the operation of the refueling pump (not shown) causes the liquid fuel to pass through the refueling vibe 22 to the rotary atomization means 1.
6. The liquid fuel supplied to the rotary atomization means 16 is atomized by centrifugal force, collides with the vaporization surface of the inner wall of the vaporizer 13, and is vaporized. The vaporized fuel gas is transported to the mixing chamber 14 by a portion of the combustion air supplied by the combustion fan 20, mixed with the remaining combustion air, and ejected from the burner head 15, where it is ignited. It is ignited by a means (not shown) to cause combustion.

Here, the liquid fuel supplied to the rotary atomizing means 16 is atomized by centrifugal force, and the action of scattering the atomized fuel and the mixing of the vaporized gas vaporized by the vaporizer 13 with air The counterflow swirling vortex caused by the rotation of the promoting diffusion vanes 23 is prevented by the plurality of fixed vanes 24, and the counterflow caused by the vortex can also be prevented. Therefore, when the combustion fan is stopped, the mixed gas can be prevented from flowing out due to the reverse flow.

Effects of the Invention As described above, the liquid fuel combustion apparatus of the present invention includes: an atomizing means for atomizing liquid fuel by rotation; a vaporizer disposed so as to surround the atomizing means; A diffusion vane disposed on the atomization means on the same axis as the exit direction of the atomization means, a motor for rotating the atomization means, a burner section connected to the outlet of the vaporizer, and a liquid fuel supplied to the atomization means. a combustion fan that supplies air to the vaporizer and the burner section; and a plurality of combustion fans that face the diffusion vanes and extend in the outer peripheral direction toward the diffusion vanes on the inner surface of the carburetor that faces the diffusion vanes and has a carburetor outlet. Since it is equipped with fixed blades, it is possible to prevent the mixed gas from flowing back due to the rotation of the diffusion blades even when the combustion fan is stopped, which has the great effect of eliminating the risk of fire.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a liquid fuel combustion device according to an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view showing a conventional liquid fuel combustion device. 13... Carburizer, 15... Burner head, 16... Rotary atomization means, 17...
...Blower box, 18...Motor,
20... Combustion fan, 22... Oil supply pipe, 23... Diffusion vane, 24...
・Fixed wing.

Claims (1)

[Claims] an atomizing means for atomizing liquid fuel by rotation; a vaporizer disposed surrounding the atomizing means; and a diffusion disposed on the atomizing means on the same axis as the exit direction of the vaporizer. a blade, a motor for rotating the atomization means, a burner section connected to an outlet section of the vaporizer, a fuel supply means for supplying liquid fuel to the atomization means, the vaporizer and the burner section. A combustion fan that supplies air to the combustion chamber, and a plurality of fixed vanes facing the diffusion vanes and disposed on the inner surface of the vaporizer having a vaporizer outlet so as to face the diffusion vanes and extend in the outer circumferential direction. Fuel combustion equipment.