JP2921166B2 - 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 As shown in FIGS. 5 and 6, a conventional oil combustion apparatus of this type is provided with a burner head 2 on the upper surface of a box-shaped mixing chamber 1 having a bottom. A vaporizer 3 is provided upstream of the chamber 1. U for vaporizer 3
Shaped upwardly both straight portions and built on top of the heater 4, for example <br/> form a wide wants vaporizing unit 5 to the burner head side, the vaporizing section
Forming a vertical wall portion 6 on the lower stream side of 5. Further, a plurality of diffusion grooves 7 formed in a substantially horizontal direction are provided on the surface of the vaporizing section 5. Further, the vaporizer lid 9 has a vaporized air inlet 8 for supplying air to the vaporizer 3 so as to face the lower part of the vaporizer 5.
And an oil feed nozzle 10 is provided so as to face the upper part of the vaporizing section 5. The oil feed nozzle 11 faces the oil feed nozzle inlet 10. Also, to form a heat receiving portion 12 comprising a heat receiving fins on the outer wall of the vaporizing unit 5. Further, an air chamber 14 communicating with the combustion fan 13 includes the carburetor 3 and the burner head 2 so as to supply air.
The ignition electrode 15 is provided near the downstream of the burner head 2,
The vaporizer thermistor 16 is provided on the upper outer wall of the vaporizer 3.

Next, the preheating operation in the above configuration will be described. When the U-shaped heater 4 is first energized, the vaporizer 3 is preheated. When the output of the vaporizer thermistor 16 reaches a set value due to this preheating, the U-shaped heater 4 is turned on and off at the output, and the temperature of the vaporizing section 5 is controlled to be the vaporizing temperature.

Next, the combustion operation will be described. Air sent from the combustion fan 13 passes through the vaporized air inlet 8 through the vaporizer 3.
Vaporized air flowing into the burner head 2
The air is divided into two systems and the next air. Kerosene striking the injection out the vaporizing unit 5 from the oil feed nozzle 11, the diffusion grooves 7
It is spread over a wider area of the surface of the vaporizing section 5 and vaporized by the vaporized air. The vaporized gas generated here is mixed with the vaporized air to form a premixed gas, which is ejected from the burner head 2 and ignited by the discharge of the ignition electrode 15 to start combustion, and further promotes combustion by the secondary air. Is done. Then, when the combustion heat received by the heat receiving unit 12 is thermally conducted to the vaporizer 3, the output of the vaporizer thermistor 16 approaches the set value, and at the same time, the U-shaped heater 4 turns on and off, and the temperature of the vaporizing unit 5 decreases. It is controlled to reach the vaporization temperature.

[0005]

However, in the configuration of the above-mentioned conventional oil combustion apparatus, the U-shaped heater 4 and the vaporizer thermistor 16 are provided above the vaporizing section 5.
Thus, the temperature at the upper portion of the vaporizing section 5 is surely controlled to the vaporizing temperature, but the temperature decreases from the lower portion of the vaporizing section 5 to the vertical wall 6. In particular, since the vertical wall 6 is separated from the U-shaped heater 4, it is heated mainly by the combustion heat received by the outer wall of the vertical wall 6. Therefore, vertical
The temperature of the wall 6 is considerably lower than the vaporization temperature.

On the other hand, Ri is supplied kerosene was altered from the oil feed nozzle 11, if the tar to the surface of the vaporizing unit 5 is vaporized capability of the vaporizing unit 5 and deposited with drops, lamp oil supplied is vaporized portion 5 in may not all vaporized, kerosene flows from the vaporizing unit 5 to the vertical wall portion 6. However, since the temperature of the vertical wall portion 6 is considerably lower than the vaporization temperature, there has been a problem that kerosene flowing there is poorly vaporized.

[0007] The present invention is intended to solve the above problems, Ri degenerated kerosene is supplied, when the vaporization capability of the vaporizing portion is lowered also provide oil combustion apparatus which can be reliably vaporized kerosene It is intended to be.

[0008]

According to the present invention, there is provided a vaporizer having a vaporizer for vaporizing fuel ,
A mixing chamber disposed on the lower side of the vaporizer;
And the burner head above.
A heat receiving portion provided on an outer wall of the vaporizer so as to receive the combustion heat, and an oil feed nozzle for ejecting fuel toward the vaporizing portion of the vaporizer, wherein the vaporizer includes the vaporizing portion; Mixed
It has a wall that is continuously formed in the vaporizing section between
And ejected from the oil supply nozzle of the vaporizing section.
Primary heater at the top of the area where the fuel
A secondary heater is provided on the wall, and the primary and secondary heaters are used simultaneously.
Control the temperature of the vaporization section to the vaporization temperature
It is configured .

[0009]

According to the present invention, the vaporizer of the vaporizer has the above structure.
Degraded fuel is supplied, and the vaporization capacity of the vaporization unit is reduced.
And some of the fuel injected into the vaporizer
Spills down to the vaporizer wall, which leads to the mixing chamber
However, the wall of the vaporizer is the secondary heater and the fuel received by the heat receiving wall.
It is controlled to the vaporization temperature by burning heat
Thus, this fuel can also be vaporized.

[0010]

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

In FIG. 1 to FIG. 4, reference numeral 21 denotes a bottomed box-shaped mixing chamber, in which a burner head 22 is provided on the upper surface, and a vaporizer 23 is provided in contact with the burner head 22 and upstream of the mixing chamber 21. . The vaporizer 23 has, for example, a burner head 22
And a sloping vaporizer 25 protruding to the side of the carburetor, and a vertical wall 26 below the carburetor 23. 2 its the primary heater 24a at the top of the vaporizing section 25, the lower portion of the vertical wall portion 26
A next heater 24b is incorporated. The primary heater 24a
When the secondary heater 24b that form a U-shaped heater 24 by bonding. A plurality of diffusion grooves 27 extending in a substantially horizontal direction are provided on the surface of the vaporizing section 25. The outer wall of the vaporizing section 25 that has a heat-receiving portion 32 of the heat receiving fins. Mind
The vaporizer lid 29 provided to face the section 25 has a vaporization air inlet 28, the oil feeding nozzle inlet 30 opened in the upper portion of the vaporizing air inlet 28, and to face the oil feed nozzle 31.
Behind the carburetor lid 29, there is provided a combustion fan 33 containing the carburetor 23 and the burner head 22 and communicating with an air chamber 34 for supplying air. Reference numeral 35 denotes an ignition electrode provided near the downstream of the burner head 22, and reference numeral 36 denotes a vaporizer thermistor provided on the upper outer wall of the vaporizer 23.

Next, the preheating operation in the above configuration will be described. When the primary heater 24a and the secondary heater 24b are first energized, the vaporizer 23 is preheated. When the output of the vaporizer thermistor 36 rises to the set value due to this preheating,
With this output as the boundary, the primary heater 24a and the secondary heater 24
b is turned on and off so that the temperature of the vaporizing section 25 is controlled to the vaporizing temperature.

Next, the combustion operation will be described. The air supplied from the combustion fan 33 is supplied through the air chamber 34 from the vaporized air inlet 28 and the oil supply nozzle inlet 30 to the vaporized air supplied to the vaporizing section 25 and to the burner head 22.
It is divided into two systems of secondary air and supplied. In particular, vaporization air supplied from the vaporized air inlet 28 impinges on the lower portion of the vaporizing section 25, it rises along the vaporizing unit 25.

Further, kerosene ejected from the oil feed nozzle 31
Flow down the surface of the collision vaporized portion 25 at the top of the vaporizing section 25 enters the diffusion grooves 27, thereafter, kerosene flows horizontally along the diffusion grooves 27, further flows down, and spread by vaporizing the air et been vaporizes instantaneously widely diffused on the surface of the vaporizing section 25.

Next, the generated vaporized gas exits the vaporizer 23 and mixes with the vaporized air in the mixing chamber 21 to form the burner head 2.
At 2 the fuel burns with the secondary air. When the combustion heat received by the heat receiving section 32 is conducted to the vaporizer 23, the output of the vaporizer thermistor 36 approaches the set value, and at the same time, the primary heater 24
a and the secondary heater 24b are turned on and off, and in particular, the primary heater 24a controls the temperature of the inclined vaporizer 25 to be the vaporization temperature. Further, the combustion heat is recovered by the heat receiving section 32 so that the use frequency of the primary heater 24a and the secondary heater 24b is reduced.

[0016] Here, Ri kerosene was altered from the oil feed nozzle 31 is supplied, tar adheres to the surface of the vaporizing section 25,
If vaporization capability of the vaporizing portion 25 is lowered, kerosene supplied
May not all be vaporized in the vaporization section 25. On the other hand, the temperature of the vertical wall portion 26 is particularly perpendicular to the secondary heater 24b.
The temperature is controlled to be the vaporization temperature by the combustion heat received by the outer wall of the wall 26. Therefore, the surface of the vertical wall portion 26 sufficiently exhibits a vaporizing function, and the kerosene flowing therethrough can be surely vaporized to prevent poor vaporization.

[0017]

As described above, according to the petroleum combustion apparatus of the present invention, the following effects can be obtained.

That is, fuel that has been altered in the vaporizing section of the vaporizer
Gas is supplied, or the vaporization capacity of the vaporization
The mixing chamber does not vaporize part of the fuel injected into the gasification section.
Even if it flows down to the wall of the vaporizer
The wall of the heater is heated by the secondary heater and the combustion heat received by the heat receiving wall.
This fuel is controlled to be at the vaporization temperature.
Can also be vaporized to prevent poor vaporization.
In addition, both the primary heater of the vaporizing section and the secondary heater provided on the wall are provided.
Is turned on and off at the same time to control the vaporization temperature.
There is also an advantage that the area for the formation is substantially enlarged.

[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 oil-fired apparatus.

FIG. 3 is a cutaway side view showing a main part of the oil combustion device.

FIG. 4 is a perspective view of an appearance of the oil-fired device, partially cut away.

FIG. 5 is a partial cross-sectional perspective view showing a main part of a conventional oil combustion device.

FIG. 6 is a longitudinal sectional view of the oil combustion device.

[Explanation of symbols]

Reference Signs List 22 burner head 23 vaporizer 24a primary heater 24b secondary heater 25 vaporizing section 28 vaporized air inlet 31 oil feeding nozzle 32 heat receiving section

Claims (1)

(57) [Claims] 1. A vaporizer having a vaporizer for vaporizing fuel ,
A mixing chamber disposed on the lower side of the vaporizer;
And the burner head above.
A heat receiving portion provided on an outer wall of the vaporizer so as to receive the combustion heat, and an oil feed nozzle for ejecting fuel toward the vaporizing portion of the vaporizer, wherein the vaporizer includes the vaporizing portion; Mixed
It has a wall that is continuously formed in the vaporizing section between
And ejected from the oil supply nozzle of the vaporizing section.
Primary heater at the top of the area where the fuel
A secondary heater is provided on the wall, and the primary and secondary heaters are used simultaneously.
A petroleum combustion device for controlling the temperature of the vaporization section to the vaporization temperature .