JPH09119611A - Vaporization type retroleum combustion appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vaporization type petroleum combustion appliance capable of forming excellent flame to constantly realize the complete combustion. SOLUTION: A burner part to burn the pre-mixed gas consists of a plurality of flame nozzle parts 24 and secondary air feed parts 25 which are alternately provided, and the flame nozzle parts 24 are projected and provided with thin and long inversely L-shaped flame nozzles 26 on the top along the longitudinal direction alternately in the right-to-left direction. Because a flame keeping guide 29 whose upper part is bent diagonally upward is provided on each side wall of the flame nozzle part 24, the flame nozzle parts 24 prevent the burning by securing sufficient residual parts, and obtain the complete combustion by constantly forming excellent flame.

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 Publication No. 59-50009, a vaporizer equipped with a heater for heating is used. After forming a premixed gas and further promoting this mixing in the mixing chamber, good combustion is performed while the secondary air is supplied from the surroundings in the burner section.

[0003]

By the way, in this prior art, since the flame holes of the flame hole portion are elongated slits and are formed symmetrically with the central portion left, there is little remaining portion of the flame hole portion. Since it is weak in strength and there is a risk of burning out for long-term combustion, and because the flame holes face each other, especially when a large flame is formed by high-power combustion, the flames interfere with each other on the way and a good combustion flame Has the problem that is not formed,
Further, since the flame is formed on the upper surface of the flame hole portion and the secondary air is supplied from the outer peripheral portion, there is a problem in that good mixing cannot be performed smoothly and complete combustion cannot be obtained.

[0004]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the structure of a vaporizer equipped with a heater for heating is used for preliminarily preparing vaporized gas and combustion air. What forms a mixed gas and combusts it in a burner part through a mixing chamber, the burner part is composed of a plurality of flame holes and a secondary air supply part which are alternately provided. Further, the flame holes are formed in a convex shape, and elongated top and bottom L-shaped flame holes extending from the central portion to the side wall are formed alternately in the left-right direction along the longitudinal direction. On both side walls of the portion, a flame holding guide is provided, in which an upper portion facing the flame hole is bent obliquely upward and opposite to the flame hole.

[0005]

In the flame formed in the flame hole portion 24, since the flame holes 26 are alternately formed on the left and right sides, the left and right sides are formed alternately and the remaining portion is sufficiently secured. There is no fear of burning even during combustion, and since the flames alternate with each other even if the flame becomes large due to the large-scale combustion, it is possible to always form a good combustion flame without interference.

Further, the flame hole portion 24 is provided between the secondary air supply portion 25.
A plurality of flame holes 26 are formed through the secondary air supply unit 2
5 extends to the side wall surface on which 5 is located, and this side wall surface is provided with a flame holding guide 29 whose upper portion facing the flame hole 26 is bent obliquely upward, so that the flame spreads. Is suppressed and the secondary air is smoothly supplied, so that it is possible to always obtain good combustion, that is, complete 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.

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. Are provided.

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-casting mixing chamber provided at the lower part of the vaporizer 1, which is connected to the outlet 6 and is depressed one step downward so as to rectify the mixed gas. And a plurality of gas chambers 19 which alternately communicate with the rectifying chamber 17 and are formed in a tapered shape and alternately have secondary air chambers 18 communicating downwardly therebetween.
7 has an auxiliary heater 2 formed of a U-shaped sheath heater at the bottom.
0 is cast, and is energized only for a predetermined time during preheating to preheat the mixing chamber 16.

A heat-resistant paint is applied to the inner surface of the mixing chamber 16 to form a coated surface 21 having fine irregularities, so that the flow velocity of the mixed gas is made uniform as the flow resistance of the mixed gas and the rectification is promoted. To measure.

A rectifying plate 22 is provided at the inlet of each gas chamber 19 so as to hang down from above. The rectifying plate 22 is formed by alternately forming cutouts and bent pieces on a single plate. / 6
By closing the above from above, the wind force sent to the gas chamber 19 is suppressed, the bias of the flame is prevented, and a uniform flame is formed overall.

Reference numeral 23 denotes a burner portion formed on the back side of the vaporizer 1 on the gas chamber 19 and the secondary air chamber 18 of the mixing chamber 16, and a convex flame hole fixed on the gas chamber 19. Part 24
And a secondary air supply portion 25 communicating with the secondary air chamber 18 at intervals of the flame hole portions 24, and an elongated inverted L-shape extending from the central portion to the side wall at the top portion of the flame hole portion 24. Flame hole 26
However, secondary air holes 27 are formed alternately in the left and right along the longitudinal direction, and secondary air holes 27 communicating with the secondary air chamber 18 are further formed in the bottom portion of the secondary air supply portion 25 in the flange portion 28 of the flame hole portion 24. It is formed by polymerizing the holes.

Numeral 29 denotes a flame holding guide fixed to both sides of the flame hole portion 24, and an upper portion facing the flame hole 26 is bent obliquely upward on the opposite side to the flame hole 26 so as to be formed in the flame hole 26. It suppresses the spread of the flame and guides the secondary air supplied from below.

Reference numeral 30 denotes a heat-resistant rectifying mesh provided in the flame hole portion 24, which is formed by knitting a wire having a wire diameter of 0.29 mm into 36 mesh, and performs final rectification of the mixed gas ejected from the flame hole 26. Is what you do.

Numeral 31 denotes a vertically long heat absorbing fin protruding from the back of the vaporizer 1 onto the burner portion 23. The heat absorbing fin 31 is divided into a plurality of heat absorbing fins in order to increase the contact area with the combustion gas and increase the heat back amount. At the time of combustion, the heat back of the combustion heat is used as heat of vaporization to reduce the power consumption of the heating heater 12, and the upper end is formed as an inclined portion 32 inclined downward toward the burner portion 23 and raised. This is to improve the release of combustion heat.

Further, a flame hole portion 24 is disposed below each of the heat absorbing fins 31 so that the flame hole portion 24 between the heat absorbing fins 31 is about ten times as large as the other flame holes 26. Forming a large flame hole 33 consisting of two squares,
A single longitudinal groove 34 extending from the lower end to the upper end is provided substantially at the center of the protruding end surface of each heat absorbing fin 31.
The structure is such that the flame enters and the heat absorption area increases.

Reference numeral 35 denotes an L provided above the heat absorbing fin 31.
The heat-suppressing fins 31 are approximately 2
３ to cover the space between the heat absorbing fins 31 and the vertical groove 34 to suppress the rising force of the combustion heat rising between the heat absorbing fins 31. Alternatively, the suppression force may be adjusted by forming a slit or a hole in the suppression plate 35 itself.

Reference numeral 36 denotes an uneven surface formed by continuously forming a plurality of R-shaped convex portions on the back wall of the vaporizer 1 between the heat absorbing fins 31 to increase the heat absorbing area and control the rising force of the combustion heat. I am trying to get enough heat back,
In particular, because of the R shape, it is possible to smoothly suppress only the rising force without causing turbulence in the combustion heat.

Reference numeral 37 denotes a combustion chamber which surrounds the upper portion of the burner portion 23, and the outer periphery is covered with a cover frame 39 via an air chamber 38.

Reference numeral 40 denotes a combustion fan, which communicates with the ejection port 3 and the air chamber 38 through an air passage 41, supplies primary air for combustion to the ejection port 3, and the air chamber 38 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 25 of the burner unit 23 and the air for cooling the combustion chamber 37 are supplied.

Reference numeral 42 is an electromagnetic pump for supplying fuel oil to the fuel injection nozzle 2 through the oil feed pipe 43, and 44 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 vaporizer 1 to a predetermined temperature, this is detected by a temperature sensor (not shown) provided at a proper position, and the combustion fan 40 and the electromagnetic pump 42 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 unevenness, 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, which is heated for a certain time by the auxiliary heater 20 which is energized at the same time as the preheating of the vaporizer 1. Since the high temperature preheated state is maintained, the mixed gas that has flowed in does not liquefy.

Then, the mixed gas promotes rectification in the rectification chamber 17, and immediately immediately after being divided into a plurality of gas chambers 19 and finely divided, the mixed gas flows into the plurality of gas chambers 19, and due to the fine irregularities and the tapered shape by the coating surface 21 of the inner wall surface, the flame hole portion The ejection speed of the mixed gas ejected from the flame holes 26 of 24 is uniform irrespective of the longitudinal direction,
The mixed gas is rectified immediately before being ejected from the flame hole 26.
After passing through zero, it is finally rectified and ejected, and combustion is started if it is appropriately ignited by ignition means (not shown).

Further, since the flame holes 26 in which a flame is formed are alternately provided on the top of the flame hole portion 24, the remaining portion is sufficiently secured and the strength is strong and there is no fear of burning even in long-term combustion. Even if the flame becomes large due to large-scale combustion, the flames to be formed are alternated to the left and right, and good combustion flames can be obtained without interfering with each other.

Further, a secondary air supply portion 25 is formed between each flame hole portion 24, and a flame hole 26 is extended to the side wall surface of the flame hole portion 24, and a flame holding guide 29 guides this. Therefore, the flame holding guide 29 suppresses the spread of the flame formed in each flame hole 26, and also guides the flame at the bent portion, and the flame overhangs the secondary air supply unit 25, and the secondary air below the secondary air supply unit 25. The secondary air from the air holes 27 is smoothly and surely supplied, and good combustion of complete combustion is performed.

Further, between the heat-absorption fins 31 during combustion, a larger flame is formed in the large flame holes 33, and a large amount of combustion heat rises between the heat-absorption fins 31, so that the heat-absorption fins 3
The carburetor 1 obtains a sufficient amount of heat back through 1 and the heating heater 12 is not energized after the start of combustion without heating.
It is possible to obtain heat of vaporization by using a bag and reliably reduce power consumption.

If a hot-water supply heat exchanger (not shown) in which water circulates inside is installed above the combustion chamber 37, it is possible to obtain good hot-water supply with low combustion noise and good responsiveness. Is.

[0035]

In summary, the present invention is a vaporizer equipped with a heating heater, forms a premixed gas of vaporized gas and combustion air, and burns it in a burner section through a mixing chamber. In this case, the burner portion is composed of a plurality of flame hole portions and a secondary air supply portion which are alternately provided, and the flame hole portion is formed in a convex shape, and the top portion has a substantially central portion. To the side wall, elongated elongated L-shaped flame holes are formed alternately in the left-right direction along the longitudinal direction, and upper portions facing the flame holes are provided on both side walls of the flame hole portion opposite to the flame holes. Since it is equipped with a flame holding guide that is bent diagonally upward, it is possible to secure the rest of the flame hole part, and it can be used safely without burning even for long-term combustion, and flame Interference and spread of air is reliably prevented, and secondary air is smoothly supplied to ensure a good fire. Those which can be in the form obtaining a complete combustion.

[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 combustion chamber.

FIG. 3 is a sectional view of the main part.

FIG. 4 is an exploded perspective view of the main part.

FIG. 5 is an enlarged sectional view of the main part.

FIG. 6 is a front view of the vaporizer.

[Explanation of symbols]

 1 Vaporizer 12 Heater 16 for heating 16 Mixing chamber 23 Burner part 24 Flame hole part 25 Secondary air supply part 26 Flame hole 29 Flame holding guide

 ─────────────────────────────────────────────────── ─── 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 vaporizer equipped with a heating heater, which forms a premixed gas of vaporized gas and combustion air and burns it in a burner section through a mixing chamber, The burner portion is composed of a plurality of flame hole portions and a secondary air supply portion that are alternately provided. Further, the flame hole portion is formed in a convex shape, and the burner portion extends from the central portion to the side wall at the top portion. The left and right elongated flame holes are formed alternately along the longitudinal direction, and upper portions facing the flame holes are provided on both side walls of the flame holes, and are directed obliquely upward and opposite to the flame holes. A gasification type oil combustion device that is equipped with a flame holding guide that is bent.