JP3150584B2 - Vaporized oil combustion equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasoline-type oil combustion apparatus provided with a heating heater constituting a combustion section of a heater or a water heater.

[0002]

2. Description of the Related Art Conventionally, in this type, as disclosed in Japanese Patent Application Laid-Open No. 4-106304, a vaporizing chamber having an inclined vaporizing section is formed so that the fuel oil on the vaporizing surface is reduced. The diffusion was smoothed to improve the vaporization ability.

[0003]

By the way, in this conventional apparatus, since the heating heater is provided in the inclined vaporizing section to which the fuel oil from the fuel injection nozzle is directly blown, only the inclined vaporizing section has the vaporizing temperature. Even if it reaches, the upper and lower side walls with which the vaporized gas comes in contact with the vaporized gas are at a low temperature, so that the vaporized gas comes in contact with it, liquefies, falls into the lower mixing chamber, and remains as a liquid reservoir, which has the disadvantage of causing odor. And poor combustion.

Further, the vaporizer itself has a drawback in which the lower portion is opened to a straight line, so that it has a drawback that hot air easily escapes and vaporized gas and primary air flow out while not sufficiently mixed.

[0005]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the present invention has a structure in which a horizontal bowl having a heating heater and having a mixed gas outlet at the bottom is provided. A vaporizer, and a mixing chamber communicating with an outlet at a lower portion of the vaporizer;
A burner portion provided on the rear side of the vaporizer at the upper portion of the mixing chamber , and a fuel injection nozzle is provided on the vaporizing surface inside the vaporizer.
The fuel oil supplied from it is vaporized ,
The heater for heating, the upper side wall above the vaporization surface and the
On the lower wall below the vaporization surface and at the outlet,
It is provided so as to protrude from the surface to the fuel injection nozzle side .

[0006]

After energizing the heating heater 12 to elevate the temperature of the vaporizer 1 to the set vaporizable temperature, the fuel vapor and the primary air for combustion are supplied to the vertical vaporizing surface 7 facing the fuel injection nozzle 2. When supplied, the vaporized gas vaporized on the vertical vaporizing surface 7 is guided by the primary air to the upper and lower side walls 13 and 14 having the heating heater 12 in the horizontal bowl-shaped vaporizer 1, respectively. Meanwhile, the vaporized gas flows into the mixing chamber 16 through the lower outlet 6, so that the vaporized gas always comes into contact with the upper and lower side walls 13 and 14 provided with the heating heaters 12 and is smoothly heated. It will be guided to the mixing chamber 16.

Therefore, the contact time with the high-temperature vaporizing wall is prolonged, and there is no fear that the gas once vaporized is liquefied, and the gas is mixed with the primary air while maintaining a good vaporized gas. By being formed, hot air is likely to be trapped, and the vaporized gas and primary air do not easily flow out, so that mixing is sufficiently performed and odor is not generated, and always optimal combustion can be obtained.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vaporized oil combustion apparatus according to the present invention. Reference numeral 1 denotes a horizontal bowl-shaped vaporizer made of aluminum die-cast, the front surface of which is closed by a lid 4 having a fuel injection nozzle 2 and a primary air outlet 3 and is divided into two by a partition wall 5 at the bottom. An outlet 6 for the mixed gas is formed.

The carburetor 1 has an inner surface facing the fuel injection nozzle 2 formed perpendicular to the fuel injection nozzle 2 to form a vertical vaporization surface 7, and a portion where the fuel oil is sprayed has a uniform diffusion of the fuel oil. A flat surface 8 for measuring the fuel flow, and a plurality of beads 9 having different lengths are arranged around the flat surface 8 in a horizontal direction and in parallel with each other to form a meandering path 10 for the fuel oil flowing down. Is formed.

The flat surface 8 and the meandering path 10 each have one injection hole 11 formed on the left and right sides of the fuel injection nozzle 2. It is provided for each.

Reference numeral 12 denotes a U-shaped sheet cast in the vaporizer 1.
A heating heater composed of a heater protrudes from the upper side of the vertical vaporizing surface 7 toward the fuel injection nozzle 2 and protrudes slightly from below the vertical vaporizing surface 7 to cover the space above the vertical vaporizing surface 7. It is cast into the lower wall 14 forming the outlet 6.

Reference numeral 15 denotes a trapezoidal guide wall as viewed from a plane provided at the last end of the meandering path 10 of the carburetor 1, and a mixed gas formed in the carburetor 1 by the vaporized gas and the primary air for combustion. It is divided into two outlets 6 and guided smoothly.

Reference numeral 16 denotes an aluminum die-cast mixing chamber provided at the lower part of the vaporizer 1 and communicates with the outlet 6 to be depressed one step downward so as to rectify the mixed gas. And a plurality of gas chambers 18 which communicate with the rectification chamber 17 and are sectioned into a tapered shape.

Reference numeral 19 denotes a burner section formed on the back side of the vaporizer 1 above the gas chamber 18 of the mixing chamber 16, and a plurality of rows of flame holes and rows of secondary air holes are alternately arranged. Things.

Numeral 20 denotes heat absorbing fins projecting from the back of the carburetor 1 onto the burner section 19, and are formed in a plurality of pieces in order to increase the contact area with the combustion gas and increase the amount of heat back. The heat back of the combustion heat is used as heat of vaporization to reduce the power consumption of the heating heater 12.

Reference numeral 21 denotes a combustion chamber surrounding the upper part of the burner portion 19, and its outer periphery is covered by a cover frame 23 via an air chamber 22.

Numeral 24 denotes a combustion fan, which communicates with the jet port 4 and the air chamber 22 through an air passage 25, supplies primary air for combustion to the jet port 3, and feeds the air chamber 22 to the side of the carburetor 1. The secondary air supplied from below the mixing chamber 16 to the burner section 19 and the air for cooling the combustion chamber 21 are supplied.

Reference numeral 26 denotes an electromagnetic pump for supplying fuel oil to the fuel injection nozzle 2 via an oil feed pipe 27, and reference numeral 28 denotes a heat shield plate.

Next, the operation of the embodiment of the present invention will be described. If the heating heater 12 is energized to heat the vaporizer 1 to a predetermined temperature, this is detected by a temperature sensor (not shown) provided at an appropriate position, and the combustion fan 24 and the electromagnetic pump 26 are detected.
Is driven, fuel oil is supplied to the carburetor 1 from the fuel injection nozzle 2, and primary air for combustion is supplied from the injection port 3.

In the carburetor 1, the fuel oil injected from the fuel injection nozzle 2 collides with the flat surface 8 of the vertical vaporizing surface 7 and diffuses uniformly to the periphery because there is no unevenness. The primary air supplied on the bead 9 moves in a sequential manner along the meandering path 10 due to the wind blown by the primary air. The primary air also causes turbulence and is sufficiently mixed with the vaporized gas, so that a good mixed gas can be obtained.

Therefore, the lightweight and compact vaporizer 1 can be obtained by the vertical vaporizing surface 7, a compact and powerful combustion device can be obtained, and a sufficient mixed gas can always be formed without lowering the vaporizing ability. Things.

The vaporized gas vaporized on the vertical vaporizing surface 7 is:
The primary air which collides with the vertical vaporizing surface 7 and rebounds flows in the horizontal bowl-shaped vaporizer 1 to the upper and lower side walls 13 and 14 provided with the heating heaters 12.
Since the heater 4 is sufficiently heated by the heating heater 12, the vaporization of the vaporized gas is further promoted, and the primary air is also heated well. Does not flow out immediately, but stays in the vaporizer 1 to a certain extent and after being sufficiently mixed, flows out from the outlet 6.

Accordingly, since the heating heaters 12 are provided on the upper and lower side walls 13 and 14 instead of the vaporized surface on which the fuel oil is directly sprayed, it is possible to always maintain a predetermined vaporization temperature without a sudden temperature drop due to the fuel spraying. The vaporized gas stays in the vaporizer 1 to a certain extent without being immediately discharged, and is guided along the high and lower side walls 13 and 14, so that vaporization is promoted without liquefaction. Thus, a mixed gas can be obtained, and the generation of odor due to the liquid pool is reliably prevented.

On the other hand, the mixed gas formed in the vaporizer 1 flows into the mixing chamber 16 through the outlet 6 at the bottom and is once rectified, and then supplied to the burner section 19 to supply the air to the air chamber 22. With the secondary air supplied from below the mixing chamber 16 via an appropriate ignition means (not shown),
Good combustion is performed in the combustion chamber 21.

If a heat exchanger (not shown) for hot water supply through which water flows inside is installed above the combustion chamber 21, a good hot water supply with low combustion noise and good responsiveness can be obtained. It is.

[0026]

In summary, the present invention provides a bowl-shaped vaporizer having a heater for heating and having an outlet for mixed gas at the bottom, a mixing chamber communicating with the outlet at the lower part of the vaporizer, And a burner provided on the back side of the vaporizer at the upper part of the mixing chamber, and supplied from the fuel injection nozzle on the vaporizing surface of the vaporizer inner surface.
In those adapted to vaporize the fuel to be, the pressure
A heating heater, an upper side wall above the vaporizing surface and the vaporizing surface;
On the lower wall below and at the outlet,
Is also provided so as to protrude toward the fuel injection nozzle side, so that the entire carburetor can be uniformly heated from above and below, so that the preheating time can be shortened and the primary air is also good.
The vaporizer is heated to a high temperature and the interior of the vaporizer is maintained in a high-temperature atmosphere.The vaporizer has a horizontal bowl shape and retains hot air, and the vaporized gas and primary air do not flow out immediately but stay in the vaporizer to some extent. Since the mixture is discharged after that, the mixture is sufficiently performed and a mixed gas heated well can be obtained.

Further, the upper and lower side walls which also serve as the vaporized gas guide walls are
Directly heated by the heater for heating, maintaining high temperature
Therefore, the vaporization is further promoted by the contact of the vaporized gas, the generation of odor due to the liquefaction is surely prevented, and the good combustion can be always performed by the stable supply of the vaporized gas.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vaporized petroleum combustion apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the vaporizer.

FIG. 3 is a front view of the vaporizer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vaporizer 2 Fuel injection nozzle 6 Outlet 7 Vertical vaporization surface 12 Heater 13 Upper wall 14 Lower wall 16 Mixing chamber 19 Burner part

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takahiro Kimura 7-7 Higashi Shinbo, Sanjo-shi, Niigata Examiner, Corona Co., Ltd. Katsuyuki Higashi (56) References JP-A-5-322128 (JP, A) JP-A Heisei 5-99405 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F23D 11/44 F23D 11/10

Claims (1)

(57) [Claims] 1. A bowl-shaped vaporizer having a heating heater and having a mixed gas outlet at the bottom, a mixing chamber communicating with the outlet at a lower part of the vaporizer, and a mixing chamber at an upper part of the mixing chamber. And a burner portion provided on the back side of the vaporizer, and the air inside the vaporizer is formed.
The fuel oil supplied from the fuel injection nozzle
In the above configuration, the heater for heating is
Forming an upper wall above the surface and an outlet below the vaporizing surface
The fuel injection nozzle closer to the lower side wall than the vaporization surface
A vaporized petroleum combustion device characterized by being provided in a protruding manner .