JPH0979520A - Vaporizing type petroleum combustor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vaporizing type petroleum combustor having a vaporizer which makes it possible to always obtain excellent vaporized gas by sufficient vaporizing capacity with a light weight and compact structure. SOLUTION: The inner surface of a box-shaped vaporizer 1 having a heater 2 for heating and a mixed gas outlet 7 at the bottom is formed in a vertical vaporizing surface 8 perpendicular to a fuel jet nozzle. A zigzag passage 11 of downflow fuel oil is formed at a plurality of beads 10 at the flat surface 9 for spraying the oil at the center at the surface 8. Accordingly, the drop of the oil is suppressed as much as possible to expedite the vaporization with the light weight and compact vaporizer to make it possible to obtain uniform and excellent vaporized gas.

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 Unexamined Patent Publication (Kokai) No. 4-106304, by forming a vaporizing chamber having an inclined vaporizing portion, fuel oil on the vaporizing surface can be prevented. The diffusion was smoothed to improve the vaporization ability.

[0003]

By the way, in this conventional device, since the vaporization chamber itself is inevitably made large because the inclined vaporization portion is formed, it is impossible to realize the weight reduction and the compactness which are important subjects of this kind of combustion instrument. Also, the contact time of the inclined vaporization surface with the vaporization surface of the fuel oil is long, but the fuel oil pushed up by the primary air rising from below and the fuel oil falling spontaneously collide on the way. ,
It also had a problem that an oil reservoir was generated and good vaporization was not performed.

[0004]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the configuration is a box type having a heating heater and a mixed gas outlet at the bottom. Of the carburetor, a mixing chamber communicating with the outlet at the lower part of the carburetor, and a burner portion provided on the rear side of the carburetor at the upper part of the mixing chamber, the inner surface of the carburetor Is a vertical vaporization surface with respect to the fuel injection nozzle provided on one side wall, and the vertical vaporization surface is formed with a meandering path for the flowing-down fuel oil by a plurality of beads centering on a flat surface for spraying fuel oil. Is.

[0005]

The fuel oil injected from the fuel injection nozzle 3 collides with the flat air 9 formed on the vertical vaporization surface 8 together with the primary air supplied from the ejection port 4, and diffuses to the surroundings. Then, the diffused fuel oil is held by the beads 10 around the flat surface 9, respectively, and horizontally moves on the beads 10 and moves sequentially through the meandering path 11 to the beads 10 in the lower stage. A sufficient vaporization time of fuel oil can be taken, and a uniform and excellent vaporized gas can be obtained while realizing a lightweight and compact vaporizer 1 by forming the vertical vaporization surface 8.

[0006]

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 is a box-type vaporizer made of aluminum die-cast in which a U-shaped heating heater 2 is cast into the side wall portion, and a front face is provided with a lid 5 having a fuel injection nozzle 3 and a primary air ejection port 4. The mixed gas outlet 7 is closed at the bottom and is divided into two by the partition wall 6 at the bottom.

The carburetor 1 forms an inner surface facing the fuel injection nozzle 3 perpendicularly to the fuel injection nozzle 3 to form a vertical vaporization surface 8, and a portion where the fuel oil is sprayed has a uniform diffusion of the fuel oil. To form a flat surface 9, and a plurality of beads 10 having different lengths are arranged around the flat surface 9 in a horizontal direction and in parallel with each other to form a meandering path 11 for the flowing fuel oil. Is formed.

The flat surface 9 and the meandering path 11 are formed with one injection hole 12 on each side of the fuel injection nozzle 3, so that one injection hole 12 is formed on each side of the vertical vaporization surface 8 facing each other. They are provided one by one.

Reference numeral 13 denotes a trapezoidal guide wall provided at the final end of the meandering path 11 of the carburetor 1 and having a trapezoidal shape when seen from a plane. The two outlets 7 are smoothly divided and guided.

Reference numeral 14 is a mixing chamber made of aluminum die-casting provided in the lower part of the vaporizer 1, and is a rectifying chamber which is communicated with the outflow port 7 and is depressed one step downward so as to rectify the mixed gas so as to have a large capacity. And a plurality of gas chambers 16 that communicate with the rectifying chamber 15 and are formed in a tapered shape.

Reference numeral 17 denotes a burner portion formed on the back side of the vaporizer 1 on the gas chamber 16 of the mixing chamber 14, in which a plurality of flame hole rows and secondary air hole rows are alternately arranged. It is a thing.

Reference numeral 18 denotes a heat absorbing fin projecting from the rear surface of the vaporizer 1 onto the burner portion 17, which 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. The heat back of the combustion heat is used as the heat of vaporization to save the electric power of the heating heater 2.

Reference numeral 19 denotes a combustion chamber which surrounds the upper portion of the burner portion 17, and the outer periphery is covered with a cover frame 21 via an air chamber 20.

Reference numeral 22 denotes a combustion fan, which communicates with the jet port 4 and the air chamber 20 through an air passage 23, supplies primary air for combustion to the jet port 4, and the air chamber 20 is provided to the side of the carburetor 1. The secondary air supplied from below the mixing chamber 14 to the burner section 17 and the air for cooling the combustion chamber 19 are supplied.

Reference numeral 24 is an electromagnetic pump for supplying fuel oil to the fuel injection nozzle 3 through an oil feed pipe 25, and 26 is a heat shield plate.

Next, the operation of the embodiment of the present invention will be described. When the heater 2 for heating is energized to heat the vaporizer 1 to a predetermined temperature, this is detected by a temperature sensor (not shown) provided in a proper position, and the combustion fan 22 and the electromagnetic pump 24 are driven. Then, the fuel oil is supplied from the fuel injection nozzle 3 to the carburetor 1, and the primary air for combustion is supplied from the ejection port 4, respectively.

In the carburetor 1, the fuel oil injected from the fuel injection nozzle 3 collides with the flat surface 9 of the vertical vaporization surface 8 and has no unevenness, so that the fuel oil diffuses uniformly to the surroundings, but does not immediately fall and is not dropped. As indicated by A, the primary air supplied on the surrounding beads 10 also moves sequentially along the meandering path 11 due to the wind force of the primary air, and a sufficient vaporization time is reached, and vaporization is promoted. The primary air supplied by the unevenness of the cathode 10 also causes a turbulent flow and is sufficiently mixed with the vaporized gas, so that a good mixed gas can be obtained.

Therefore, the vertical vaporizing surface 8 makes it possible to obtain a lightweight and compact vaporizer 1 to obtain a small and powerful combustion device and to always form a sufficient mixed gas without lowering the vaporization capacity. It is a thing.

On the other hand, the mixed gas formed in the vaporizer 1 flows into the mixing chamber 14 through the outlet 7 at the bottom, is once rectified therein, and then is supplied to the burner 17 to be supplied to the air chamber 20. By being ignited by appropriate ignition means (not shown) together with the secondary air supplied from below the mixing chamber 14 via
Good combustion is performed in the combustion chamber 19.

If a heat exchanger for hot water supply (not shown) in which water flows inside the combustion chamber 19 is installed, a good hot water supply with low combustion noise and good response can be obtained. Is.

[0021]

In summary, the present invention provides a box type carburetor having a heating heater and a mixed gas outlet at the bottom.
In the one composed of 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, the inner surface of the vaporizer is provided on one side wall. In addition to being a vertical vaporization surface for the fuel injection nozzle, the vertical vaporization surface is formed by forming a meandering path for the flowing-down fuel oil with a plurality of beads centering on a flat surface for fuel oil spraying.・
Even though it is a compact vaporizer, it is possible to always obtain a sufficient vaporization capacity and a uniform and favorable vaporized gas in a stable manner.

[Brief description of 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]

 1 vaporizer 2 heating heater 3 fuel injection nozzle 7 outlet 8 vertical vaporization surface 9 flat surface 10 beads 11 meandering path 14 mixing chamber 17 burner section

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

Claims (1)

[Claims] 1. A box-type 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 bottom of the vaporizer, and vaporizing at the upper part of the mixing chamber. And a burner portion provided on the rear side of the carburetor, wherein the inner surface of the carburetor is a vertical vaporization surface with respect to the fuel injection nozzle provided on one side wall, and the vertical vaporization surface is A vaporization type petroleum combustion apparatus characterized in that a meandering path for falling fuel oil is formed by a plurality of beads centering on a flat surface for spraying fuel oil.