JPH09112827A - Vaporizing type retroleum combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vaporizing type petroleum combustion device capable of effectively conducting the power conservation by always obtaining strong and stable heat-back. SOLUTION: A plurality of long vertical heat absorbing fins 24 protruding upward of a burner part are formed on the back surface of a vaporizer 1. Further, the burner ports 21 of the burner part are disposed between the fins 24. Since the ports are formed in large burner holes 25 larger than the other to make it possible to form large flame of special purpose for heat-back, thereby making it possible to always obtain strong and stable heat-back. At the time of combustion, the energization of a heater 12 for heating is eliminated to make it possible to effectively attempt to conduct the power conservation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasification type petroleum combustion apparatus equipped with a heating heater which constitutes a combustion section of a heater or a water heater.

[0002]

2. Description of the Related Art Conventionally, in this type, as disclosed in, for example, Japanese Patent Laid-Open No. 5-99405,
A plurality of endothermic fins are projected on the burner on the back of the carburetor, and during combustion, the heat of vaporization is obtained only by the heat back of the combustion heat from the endothermic fins, and the heating heater is not energized. It was intended to reduce power consumption.

[0003]

By the way, in this prior art, the flame hole portion of the burner portion is located between the heat absorbing fins, but this flame hole is made small in order to obtain complete combustion. Since it is the same as the flame hole, the amount of heat absorption is not sufficient and the heating heater is often turned on, so reliable power saving cannot be achieved, and the upper part of this flame hole is surrounded by heat absorbing fins. Since the air permeability is increased, the flame is lifted in a small flame hole and good combustion cannot be obtained, which is a problem.

[0004]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the structure of the vaporizer has a heating heater and a mixed gas outlet at the bottom. A mixing chamber communicating with the outlet at the lower part of the vaporizer and a burner portion provided on the rear side of the vaporizer at the upper part of the mixing chamber. -A plurality of vertically elongated heat-absorption fins protruding above the corner portion is formed, and the flame hole portion of the burner portion is positioned between the heat-absorption fins, and
This flame hole is a large flame hole larger than others.

[0005]

After the heating heater 12 is energized to heat the vaporizer 1 to the set vaporization temperature, the combustion fan 29, the electromagnetic pump 31 and the like are driven, so that the fuel oil and the primary combustion gas are stored in the vaporizer 1. When air is supplied, the fuel oil is vaporized to form a premixed gas, and this mixed gas flows into the mixing chamber 16 through the outlet 6 at the bottom, further promotes mixing there, and then separately in the burner section 19. It burns with the supplied secondary air.

A part of the combustion of the burner portion 19 is used for heat back, but the heat absorbing fins 24
Since the flame holes provided between them are large flame holes 25 that are larger than the others, the flame formed here is larger and stronger than the others, so a reliable and sufficient heat back can be obtained, and during combustion, The power consumption can be surely reduced without energizing the heating heater 12, and even if the ventilation force between the heat absorbing fins 24 is increased, it is not lifted by a large flame and the heat back is always stable. It is possible to obtain dedicated combustion.

[0007]

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.

Since the flat surface 8 and the meandering path 10 are formed with one injection hole 11 on each side of the fuel injection nozzle 2, one on each side of the vertical vaporization surface 7 facing each other. They are provided one by one.

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 is a mixing chamber made of aluminum die-cast provided in the lower part of the vaporizer 1, and is a rectification chamber 17 which is communicated with the outlet 6 and is depressed one step downward so as to rectify the mixed gas to have a large capacity. And a plurality of gas chambers 18 which communicate with the rectifying chamber 17 and are formed in a tapered shape so as to communicate downwardly with a secondary air chamber (not shown).

Reference numeral 19 denotes a burner portion formed on the back side of the vaporizer 1 on the gas chamber 18 of the mixing chamber 16, which is elongated in communication with the gas chamber 18 and has a large contact area with the secondary air. A secondary air supply unit in which a plurality of small flame holes 20 are arranged in a row so as to obtain a complete combustion flame, and a plurality of small circular secondary air holes 22 communicating with a secondary air chamber are arranged in a row. 23 and 23 are alternately arranged in a row.

Reference numeral 24 is a vertically long heat absorbing fin projecting from the rear surface of the carburetor 1 onto the burner portion 21. The heat absorbing fin 24 is divided into a plurality of portions in order to increase the contact area with the combustion gas and increase the amount of heat back. At the time of combustion, the heat back of the combustion heat is used as the heat of vaporization to save the power of the heating heater 12.

Further, the flame holes 21 are disposed below the heat absorbing fins 24, and the flame holes 21 between the heat absorbing fins 24 are about ten times as large as the other flame holes 20. Forming a large flame hole 25 consisting of two squares
It aims to increase the amount of heat back and to achieve stable combustion.

Reference numeral 26 is a combustion chamber that surrounds the upper portion of the burner portion 19, and the outer periphery is covered with a cover frame 28 via an air chamber 27.

Reference numeral 29 denotes a combustion fan, which communicates with the ejection port 3 and the air chamber 27 through an air passage 30, supplies primary air for combustion to the ejection port 3, and the air chamber 27 is provided to the side of the carburetor 1. The secondary air supplied from below the mixing chamber 16 to the secondary air supply unit 23 of the burner unit 19 and the air for cooling the combustion chamber 26 are supplied.

Reference numeral 31 is an electromagnetic pump for supplying fuel oil to the fuel injection nozzle 2 through the oil feed pipe 32, and 33 is a heat shield plate.

Next, the operation of the embodiment of the present invention will be described. When the heater 12 for heating is energized to heat the carburetor 1 to a predetermined temperature, this is detected by a temperature sensor (not shown) provided in a proper place, and the combustion fan 29 and the electromagnetic pump 31 are detected.
The fuel oil is supplied to the carburetor 1 from the fuel injection nozzle 2 and the primary air for combustion is supplied to the carburetor 1 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 vaporization surface 7 and has no irregularities, so that it diffuses uniformly to the surroundings. There is also a wind force of the primary air supplied on the bead 9 and it sequentially moves along the meandering path 10, and a sufficient vaporization time is reached, vaporization is promoted, and it is supplied by the unevenness of the bead 9. The primary air also causes a turbulent flow and is sufficiently mixed with the vaporized gas, so that a good mixed gas can be obtained.

Therefore, a light and compact carburetor 1 can be obtained by the vertical vaporization surface 7, a small and powerful combustion device can be obtained, and a sufficient mixed gas can always be formed without lowering the vaporization ability. It is a thing.

The vaporized gas vaporized on the vertical vaporization surface 7 is
The primary air that 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.

On the other hand, the mixed gas flowing out from the outlet 6 flows into the mixing chamber 16 where it is once rectified, then divided into a plurality of gas chambers 18 and supplied to the burner portion 19, and further the flame hole portion. Along with the secondary air that is finely divided by 21 and is discharged from the plurality of flame holes 20 and passes through the air chamber 27 below the mixing chamber 16 and is supplied from the secondary air supply unit 23, an appropriate ignition means (not shown) Ignition is performed by (1) to perform good combustion in the combustion chamber 26.

In addition, between the heat absorbing fins 24 during combustion, the large flame holes 25 of the flame hole portion 21 are supplied with a large amount of mixed gas and burn with a large flame, and the heat absorbing fins 24 are heated by the flame dedicated to the heat back. Both sides having the largest heat absorption area can absorb heat, and a sufficient heat back amount can be obtained at all times. After the start of combustion, there is no need to energize the heating heater 12 to reliably save power. is there.

Further, since the large flame hole 25 forms a large flame as described above, even if the ventilation force between the heat absorbing fins 24 is increased, the flame is not lifted and the flame is surely formed in the large flame hole 25. It is possible to achieve stable heat back with good combustion.

If a hot-water supply heat exchanger (not shown) in which water circulates inside is installed above the combustion chamber 26, it is possible to obtain good hot-water supply with low combustion noise and good response. Is.

[0027]

In summary, according to the present invention, a vaporizer having a heating heater and a mixed gas outlet at the bottom, a mixing chamber communicating with the outlet at the bottom of the vaporizer, and an upper portion of the mixing chamber are provided. And a burner portion provided on the rear side of the vaporizer, a plurality of vertically elongated heat absorbing fins protruding above the burner portion are formed on the rear surface of the vaporizer. Since the flame holes of the burner are located between the heat absorbing fins and the flame holes are made larger than others, a large amount of heat is smoothed in the place with the widest heat absorption area. It is possible to obtain a back bag, and it is possible to achieve reliable power saving without energizing the heating heater at the time of combustion.Furthermore, due to the large flame due to the large flame hole, the flame between the heat absorbing fins It is also possible to reliably prevent lifts and obtain stable heat back with good combustion at all times. Is shall.

[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 main part.

FIG. 3 is a front view of the vaporizer.

[Explanation of symbols]

 1 Vaporizer 2 Fuel injection nozzle 6 Outflow port 16 Mixing chamber 19 Burner part 20 Flame hole 21 Flame hole part 24 Endothermic fin 25 Large flame hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hisashi Iso, 7-7 Higashishinpo, Sanjo City, Niigata Prefecture, inside Corona Co., Ltd. (72) Takahiro Kimura, 7-7 Higashishinbo, Sanjo City, Niigata Prefecture, inside Corona Co., Ltd.

Claims (1)

[Claims] 1. A vaporizer having a heater for heating and having a mixed gas outlet at the bottom, a mixing chamber communicating with the outlet at the bottom of the vaporizer, and a vaporizer rear side at the upper part of the mixing chamber. And a plurality of vertically elongated heat absorbing fins protruding above the burner are formed on the rear surface of the carburetor, and between the heat absorbing fins. A gasification type petroleum combustion device characterized in that the flame hole portion of the burner portion is located and the flame hole is made larger than others.