JP3089719B2 - Oil burning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil burning apparatus provided with a vaporizer.

[0002]

2. Description of the Related Art A conventional oil burning apparatus of this kind is provided with a vaporizing section.
The vaporized gas from the mixing chamber to the burner head
It was configured to eject and burn from here.

[0003]

However, the configuration of the above-mentioned conventional oil-fired apparatus does not sufficiently exhibit a vaporizing function.
Does not occur, causing poor vaporization or kerosene mixed directly from the vaporization section
There was a problem of dripping into the room.

[0004] The present invention has been made to solve the above problems, and has as its object to improve the vaporization capability of a vaporizer and reduce pressure loss.

[0005]

In order to achieve the above object, an oil burning apparatus according to the present invention comprises: a vaporizer having a heater;
A mixing chamber to which vaporized gas from the vaporizer is supplied;
A burner head for burning the mixed gas from the mixing chamber,
An oil feed nozzle that jets fuel toward the vaporizer of the vaporizer
And a vaporized air inlet for supplying vaporized air to the vaporizing section.
In the vaporizer, the outer wall of the vaporizing section is formed by the burner head.
And heated by the vaporizer.
Guide plate projecting toward the vaporized air inlet
There is it. The guide plate is near the lower edge of the vaporized air inlet.
Project in a substantially horizontal direction so that they touch each other, and
It is configured to be formed in the shape of a next smaller flat plate.

[0006]

According to the present invention, a vaporized air inlet having the above structure is provided.
The vaporized air from
Spreads widely, so fuel from the oil feed nozzle is
Gas spreads widely in the vaporization section heated by the
And the amount of fuel flowing down in a strip is reduced.

Further, since the guide plate forms a small flat shape toward the tip, amount that the passage cross section of the vaporizing section to be against the guide plate is widened, the pressure loss of the vaporizing unit is reduced.

[0008]

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

1 to 4, reference numeral 19 denotes a box-shaped mixing chamber having a bottom. A burner head 20 is provided on the upper surface, and a vaporizer 21 is provided upstream of the mixing chamber 19 in contact with the burner head 20. . The vaporizer 21 has an upper part and the upper part has a burner head 2.
A vaporizing part 22 formed to protrude toward the zero side is provided. In this embodiment, the vaporizing portion 22 is formed to be inclined.
And hereinafter referred to as an inclined vaporizing section. Numeral 23 is a radially-inverted inclined vaporizing portion which is provided in contact with the lower end of the inclined vaporizing portion 22 and whose surface is directed downward. Further, on the downstream side of the reverse inclined vaporizing section 23, an inclined auxiliary vaporizing section 24 is provided extending from the upper end of the reverse inclined vaporizing section 23 to the outside of the inclined vaporizing section 22 (on the burner head 20 side) by a distance A, The lower part of the vaporizer 21 is formed. A vaporizer lid 25 is provided upright on the side facing the inclined vaporizer 22, and the vaporizer lid 25 is provided with a vaporized air inlet 26 facing the middle of the inclined vaporizer 22. A guide plate 27 is provided in a substantially horizontal direction from the middle of the inclined vaporizing portion 22 to the vaporized air inlet 26 so as to receive the lower edge of the vaporized air inlet 26, and the guide plate 27 is directed toward the front end. The flat surface is formed to be thinner and the side surface is inclined downward. Both straight portions of the U-shaped heater 28 are built in the upper and lower portions of the inclined vaporizing portion 22. A plurality of diffusion grooves 29 extending substantially in the horizontal direction are provided on the surfaces of the inclined vaporizing section 22 and the inclined sub-vaporizing section 24. Heat receiving fins 30 are provided on the outer slope wall of the inclined vaporizer 22 above the burner head 20. further,
An oil feed nozzle inlet 31 is provided in the vaporizer lid 25 above the vaporized air inlet 26, and faces an oil feed nozzle 32 that sprays fuel to the inclined vaporizer 22. Further, behind the vaporizer lid 25, a vaporizer 21 and a burner head 20 are included,
A combustion fan 34 communicating with an air chamber 33 for supplying air is provided. Reference numeral 35 denotes an ignition electrode provided near the downstream of the burner head 20. 36 is a vaporizer thermistor provided on the upper outer wall of the vaporizer 21.

Next, the preheating operation in the above configuration will be described. First, when the U-shaped heater 28 is energized, the vaporizer 21 is preheated. When the output of the vaporizer thermistor 36 rises to a set value due to this preheating, the U-shaped heater 28 is turned on and off at the boundary of the output to control the temperature of the inclined vaporizer 22 to the vaporization temperature.

Next, supply of air and kerosene will be described. The air supplied from the combustion fan 34 to the air chamber 33 is divided into two systems: vaporized air supplied from the vaporized air inlet 26 and the oil supply nozzle inlet 31 to the inclined vaporizer 23 and secondary air supplied to the burner head 20. Separately supplied. In particular, since the vaporized air supplied from the vaporized air inlet 26 has an inertial force, the guide plate 27 has a flat surface that becomes thinner toward the tip.
Flows along the surface of the. Thereafter, the vaporized air collides with a substantially middle portion of the inclined vaporizing section 22 and rises along the surface of the inclined vaporizing section 22.

Further, the kerosene jetted from the oil feed nozzle 32 collides with the upper part of the inclined vaporizing part 22 and flows down the surface of the inclined vaporizing part 22 to enter the diffusion groove 29, after which the kerosene flows along the diffusion groove 29. It flows in the horizontal direction, further flows down, is spread by the vaporized air, diffuses widely on the surface of the inclined vaporizing section 22, and instantaneously vaporizes.

The vaporized gas and vaporized air generated in the inclined vaporizing section 22 pass through the inclined vaporizing section 22, but the guide plate 27 has a flat plate-like surface that becomes thinner toward the tip. As the cross section of the passage of the inclined vaporizing section 22 in contact with 27 increases, the pressure loss of the inclined vaporizing section 22 decreases. Further, when the vaporized gas and the vaporized air pass through the inclined auxiliary vaporizer 24 while being mixed, they thermally expand due to the heating from the inclined auxiliary vaporizer 24. Since the inclined sub-vaporization section 24 is provided to expand outward, the passage cross-sectional area of the inclined sub-vaporization section 24 is increased,
The pressure loss in the inclined auxiliary vaporization section 24 is reduced.

Next, the combustion operation will be described. The generated vaporized gas is further mixed with vaporized air in the mixing chamber 19,
Since the fuel is ignited by the ignition electrode 35 in the burner head 20 and burns with the secondary air, the combustion characteristics are good. Heat receiving fin 30
When the combustion heat received in step (1) is conducted to the vaporizer 21, the output of the vaporizer thermistor 36 approaches the set value, and
The heater 28 is turned on and off to control the temperature of the inclined vaporizing section 22 to be the vaporizing temperature. Further, since the combustion heat is recovered by the heat receiving fins 30, the frequency of use of the U-shaped heater 28 is reduced, and the electricity bill can be reduced.

On the other hand, when the deteriorated kerosene is supplied from the oil feed nozzle 32 or the vaporization ability of the inclined vaporizing section 22 is reduced due to the adhesion of tar on the surface of the inclined vaporizing section 22, the kerosene is supplied from the inclined vaporizing section 22 It flows into the vaporizer 24. At that time, as compared with the above-described conventional example, the inclined vaporizing portion 22 is also expanded downstream of the guide plate 27, and kerosene is supplied to the guide plate 27 by the amount that the reverse inclined vaporizing portion 23 is located further downstream. Since the downstream inclined vaporizing section 22 can also vaporize, the reverse inclined vaporizing section 23
And the amount of kerosene flowing in a band on the surface of the inclined sub-vaporizer 24 decreases. as a result,
Kerosene that has flowed into the inclined sub-vaporization section 24 can be reliably vaporized.

As shown in FIG. 5, if the inclined vaporizer 37 is provided from the upper part to the lower part of the vaporizer 21, the inclined vaporizer 3 is provided.
Although the pressure loss at the lower part of 7 becomes large, a large number of diffusion grooves 29 are provided. Kerosene diffuses the lower surface of the inclined vaporizing section 37 over a wide range, so that the surface of the inclined vaporizing section 37 can sufficiently exhibit a vaporizing function. The same members as those in the above-described embodiment are denoted by the same reference numerals.

[0017]

As described above, according to the petroleum combustion apparatus of the present invention, the following effects can be obtained. (1) The vaporized air from the vaporized air inlet is vaporized by the guide plate.
Diffuses widely along the surface of the
Fuel is widely spread in the vaporization section heated by the burner head
The amount of fuel which is vaporized in the diffused state and flows down in a band shape decreases. (2) Since the guide plate is formed in the shape of a flat plate that becomes smaller toward the front end, the pressure loss of the inclined vaporizer can be reduced because the passage cross section of the inclined vaporizer in contact with the guide plate becomes wider.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional perspective view showing a main part of an oil combustion apparatus according to one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the device.

FIG. 3 is a side cutaway sectional view showing a main part of the apparatus.

FIG. 4 is an external perspective view of the apparatus.

FIG. 5 is a partial cross-sectional perspective view showing a main part of an oil combustion apparatus according to another embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 20 burner head 21 vaporizer 22, 37 vaporizer (inclined vaporizer) 23 vaporizer (reverse inclined vaporizer) 24 vaporizer (inclined auxiliary vaporizer) 26 vaporized air inlet 27 guide plate

Claims (2)

(57) [Claims] 1. A carburetor having a heater, and a carburetor
Mixing chamber to which the vaporized gas is supplied, and mixing from the mixing chamber.
Burner head for burning the combined gas and vaporization of the vaporizer
To the oil feed nozzle that sprays fuel toward the
A vaporizing air inlet for supplying vaporized air;
Is heated by the burner head.
And a vaporized air inlet from the vaporizing section.
An oil burner with a guide plate protruding toward the side . 2. The guide plate is located near the lower edge of the vaporized air inlet.
Project in a substantially horizontal direction and gradually decrease toward the tip
The petroleum combustion device according to claim 1, wherein the device is formed in a flat plate shape.