JPH0210333B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is a vaporization system that automatically shifts supplied liquid fuel from a raw combustion state to a flaming vaporization combustion state and can be used as a variety of heating sources. Regarding burners.

Conventional technology Conventionally, a combustion disk is stretched over the inner bottom side of a flat combustion cylinder to form a gas chamber, and a vaporization cylinder with a fuel scattering gap is rotatably positioned in the central opening of the gas chamber. At least a gas jetting passage is formed between the central opening and the vaporizing cylinder, and an annular ignition wall is erected on the combustion plate at a position near the outside of the gas jetting passage, which is higher than the set position of the fuel scattering gap. Even if the area occupied by the combustion disk is made considerably larger than the area occupied by the rotating vaporization cylinder, the starting ignition of live combustion can be ensured and the state of live combustion can be immediately shifted to vaporization combustion. The vaporizing burner was previously developed by the present applicant as described in Japanese Utility Model Publication No. 52-54033 and is well known.

Problems to be Solved by the Invention By the way, regarding the above-mentioned known vaporizing burner,
The surface of the combustion disk outside the annular ignition wall is perforated with numerous gas ejection holes that communicate with the inside of the gas chamber, whereas the combustion disk located inside the annular ignition wall is simply constructed in a blind shape. ing.

Therefore, by using the above-mentioned known vaporizing burner, the rotating vaporizing cylinder is heated with the rising raw combustion flame to generate vaporized gas, and thereafter, in order to stably continue the vaporized combustion state of the active flame, the fuel is poured into the fuel scattering gap. When the fuel is sprayed toward the annular ignition wall and raw combustion is started inside the annular ignition wall, some of the unburned oil generated accumulates on the blind combustion disk. As a result, even after the fuel has transitioned to the blue flame vaporization combustion state, it is gradually evaporated and burned on the combustion plate for a while, and the red flame is mixed into the blue flame. Perhaps because it is difficult to form complete blue-flame vaporized combustion within a short period of time, red-flame combustion flames are not efficiently supplied with combustion air, resulting in incomplete combustion. The medium adheres to the inner periphery of the annular ignition wall or the surface of the vaporizer cylinder,
This results in a situation that worsens the start of raw combustion and the promotion of vaporized gas generation. Once the above-mentioned situation occurs, the generation of medium increases, and when combustion is started repeatedly, it becomes difficult to smoothly transition from raw combustion to vaporized combustion. A point occurred.

Means for Solving the Problem Therefore, the technical problem of the present invention is to quickly and completely burn the unburned oil accumulated on the combustion disk at the start of live combustion, so that the green flame is less intense than the raw combustion. Not only does it speed up the transition to vaporized combustion, but it also prevents the mixing of red-flame combustion flames, quickly achieves complete vaporized combustion of blue flame, and prevents the generation of media due to incomplete live combustion. The object of the present invention is to provide a vaporizing burner that can smoothly generate vaporized gas and facilitate accurate repetition of combustion startup.

Therefore, the technical means of the present invention to solve the above-mentioned technical problems has the following configuration: (a) a combustion disk is stretched over the inner bottom side of a combustion cylinder having a substantially flat shape to form a gas chamber; A vaporizing cylinder having a fuel-splattering end on the open periphery of the base end is rotatably positioned in the central opening of the gas chamber to communicate the inside of the vaporizing body and the gas chamber, (b) the combustion disk is , with an annular step formed upwards around the central opening as a boundary, the inner horizontal surface is formed as a lower combustion surface where gas ejection holes are perforated, and the outer horizontal surface is formed as an upper combustion surface where gas ejection holes are perforated. (c) The corner between the upper combustion surface and the ignition mural was formed into an inclined surface, and the inclined surface was provided with a flame transfer hole.

Effect The above technical means works as follows.

When starting combustion, if combustion air is blown through the blast tube 13 at the same time as the rotation shaft 7 rotates the vaporization tube 6, the combustion air will flow from the tip side of the vaporization tube 6 toward the open side. After that, the gas is fed under pressure into the gas chamber 4, and finally, it is vigorously injected from the gas jet holes 17 and 19 formed in the lower combustion disk 16 and the upper combustion disk 18, respectively.

In this state, if raw fuel is sent from the oil pipe 23 to the inner surface of the hollow conical fuel diffuser 21 attached to the inner surface of the tip side of the rotating carburetor 6, the delivered fuel will be transferred to the fuel diffuser 21. Due to the rotational action of 21, it is sequentially diffused and transferred along the inner circumferential surface to the vaporizer cylinder 6.
The combustion air reaches the tip side of the vaporizer tube 6, and then is further diffused and transferred by the blowing action and rotational centrifugal action of the combustion air flowing through the inner circumferential surface of the vaporizer tube 6, and is finally provided at the periphery of the open end portion of the vaporizer tube 6. The fuel is sprayed in fine particles from the fuel scattering end 11 toward the ignition wall surface 20 provided on the annular step 15, and upon ignition by the ignition plug 24, the fuel is quickly disposed on the lower combustion plate 16 under the supply of combustion air. Burned live.

By the way, when fuel is burnt live as described above, unburned oil is generated in a part of the sprayed fuel, and this unburned oil accumulates on the lower combustion disk 16 and gradually evaporates. It causes a combustion phenomenon, and it burns up in a red-hot flame for hours on end, burning in an incomplete state. As a result, a medium is generated, and this medium is transferred to the vaporizer cylinder 6.
If it adheres to the surface or the ignition wall surface 20, it causes a situation that worsens the subsequent generation of vaporized gas and the starting and ignition of raw combustion.

However, in the present invention, since a large number of gas injection holes 17 are perforated in the lower combustion disk 16 where live combustion as described above takes place, even if unburned oil is generated, Oil is in the lower combustion disk 16
Even if the oil accumulates on the top, the unburned oil is completely combusted within a short period of time without generating a medium due to the replenishing action of the combustion air vigorously jetted from the numerous gas ejection holes 17, and is blown up into flames. The completely raw combustion flame heats the entire vaporization tube 6 to the vaporization generation atmospheric temperature, and simultaneously heats the combustion disk 3.

Therefore, after the above heating, the rotating vaporizer cylinder 6
The fuel that is sequentially diffused and transferred by the centrifugal action of rotating the inner peripheral surface and the jetting action of combustion air is quickly evaporated and vaporized by the heating action, and the generated vaporized gas is mixed with the combustion air during its circulation. The mixture becomes a complete mixture of gases, which is then pressurized into the gas chamber 4, and finally, under a constant pressure condition, it is vigorously emitted from the numerous gas ejection holes 17, 19 and the flame transfer hole 26. .
Therefore, the mixed gas injected from the lower combustion surface 16 is a live combustion flame, and the mixed gas injected from the upper combustion surface 18 is a live combustion flame and the flame transfer nozzle hole 2.
Since the combustion flames 6 are instantaneously ignited, the vaporization cylinder 6 is heated by the combustion flames to the extent that the vaporization combustion flames can be raised on the lower combustion surface 16 and the upper combustion surface 18.

Therefore, at the start of combustion, not only unburned oil but also raw combustion flames can be quickly and completely combusted with the supply of combustion air, so that the red-flame combustion flame is Since the flame is not raised for any length of time, the transition from the live combustion state to the vaporization combustion state can be made quickly. The vaporization and combustion of the blue flame can be continued stably without causing a situation where fire is mixed in.

Embodiments The present invention described above will now be described with reference to preferred embodiments shown in the accompanying drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a cylindrical combustion tube with a bottom and a substantially flat shape, and the central portion of the combustion tube 1 on the bottom wall 2 side is slightly bulged outward. Moreover, there is a combustion disk 3 on the inner bottom side of the combustion tube 1.
A gas chamber 4 is provided between the inner bottom side of the combustion tube 1 and the combustion disk 3. A central opening 5 is opened at approximately the center of the gas chamber 4, and a rotating vaporizing cylinder 6 is located at the opening 5, which is directly connected to the rotating shaft 7. The above-mentioned vaporizing cylinder 6 is formed into a conical cylinder shape with the distal end side closed and the proximal end side open.
Furthermore, a gas mixture 8 is integrally attached to the open end of the vaporizer cylinder 6 with a fuel scattering gap 7 therebetween.

This gas mixture 8 is expanded outward in the lower half with the horizontal wall 9 as a boundary, and the periphery is the fuel scattering end 1.
1, and a hollow tube 12 is integrally provided in the lower half. Note that when the gas mixture 8 is integrally attached to the open end of the vaporizer cylinder 6 with the fuel scattering gap 7 in between, the lower half of the gas mixture 8 is immersed in the central opening 5. An annular gas ejection passage 21 is formed between the central opening 5 and the gas mixture 8. Therefore, the inside of the vaporization cylinder 6 is communicated with the gas chamber 4.

Reference numeral 13 denotes a blower tube with both ends open, the base end of which is attached to the bottom wall 2 so as to communicate with the blower port 14 opened at the center of the bottom wall 2 of the combustion tube 1; It faces deeply into the vaporizer cylinder 6.

The combustion disk 3 has an annular step 15 that stands up around the central opening 5, and a large number of gas ejection holes 17 are perforated on the inner horizontal surface of the annular step 5. The lower combustion surface 16 is formed with an outer horizontal surface, and the upper combustion surface 18 is formed with a large number of gas ejection holes 19.

The annular stepped portion 15 is formed on the ignition wall surface 20 having a height capable of receiving the fuel splashed horizontally from the fuel splashing end 11 and combusting it live by starting the ignition. 22 is the vaporizer cylinder 6
A hollow conical fuel diffuser with both ends open, which is integrally attached to the inner surface of the tip side with a fuel ejection gap, and the inner circumferential surface of the fuel diffuser 22 faces the tip opening of the oil feed pipe 23. be. 24 is an ignition plug whose tip side faces the ignition wall surface 20.

In the vaporizing burner of the embodiment shown in FIGS. 3 and 4, the outer shape of the combustion tube 1' is not circular as in the vaporizing burner of the first embodiment shown in FIGS. In this embodiment, the combustion plate 3' is also formed in a rectangular shape, and compared to the vaporization burner of the first embodiment, the combustion plate 3' is formed into a substantially flat rectangular shape, and the blue flame is emitted along the lateral direction. can be set ablaze accurately. In addition, in the vaporizing burner of the second embodiment, the gas mixture 8 is not attached to the open end of the vaporizing tube 6', and the open end circumferential wall is bent and expanded outward, so that the fuel is poured around the periphery. By forming a scattering end 11', fuel can be sprayed and scattered toward the annular ignition wall surface 20. Therefore, in the above embodiment, since there is no gas mixture 8, the gas ejection passage 2
1' is formed between the open end of the carburetor 6' and the combustion disk 3'. In addition, in the vaporizing burner of the second embodiment, even if the fuel diffuser 21 is eliminated, the distal end opening of the oil feed pipe 23' faces the inner circumferential surface on the distal end side of the vaporizing cylinder 6', so that the fuel can be dispersed. It is possible to smoothly feed oil to the vaporization cylinder 6' and continue smooth vaporization and combustion of the blue flame.

What is shown in FIG. 5 is a longitudinal sectional front view of the main part of the combustion disk 3, which is partially enlarged.
The corners of the ignition wall surface 20 and the upper combustion surface 18 are chamfered to form an inclined surface 25, and the inclined surface 2
5 is provided with a large number of flame transfer holes 26 in an annular shape to atomize a part of the mixed gas during the transition from raw combustion to vaporization combustion, and at the same time direct this vaporized gas onto the lower combustion surface 16. ignition by the combustion flame that flares up, and further utilizes the combustion flame to ignite the mixed gas jetted from the gas injection hole 19 of the upper combustion surface 18 to promote rapid ignition and combustion. It is.

In addition to the cylindrical and rectangular shapes, the combustion tubes 1 and 1' can have any shape depending on the purpose, such as square, elliptical, polygonal, etc.

Effects of the Invention In short, the present invention has the above-mentioned technical means, so that the fuel sent in the rotating carburetor 6 is transferred from the raw combustion state to the vaporized combustion state. When the fuel is sprayed from the fuel scattering end 11 toward the ignition wall surface 20 and burned live on the lower combustion surface 16, a part of the scattered fuel remains unburned and remains on the lower combustion surface 16 for an indefinite period of time. Even if a situation occurs in which the unburned oil is accumulated, the unburned oil is discharged through the numerous gas ejection holes 17 drilled in the lower combustion surface 16...
The replenishing action of combustion air that is injected more vigorously allows for complete combustion within a short period of time without generating any medium, and the complete combustion flame efficiently heats the vaporizing cylinder 6 to quickly generate vaporized gas. , the obtained mixed gas is vigorously ejected from the numerous gas ejection holes 17..., 19... to stably continue the vaporized combustion of blue flame without mixing with red flame on the lower combustion surface 16 and the upper combustion surface 18. As a result, the transition from the raw combustion state to the vaporization combustion state of blue flame is significantly faster than in conventional vaporization burners, and the flame transfer occurs at the corner between the upper combustion surface 18 and the ignition wall surface 20. Since the inclined surface 25 is formed with the nozzle holes 26, the air-fuel mixture emitted from the upper combustion surface 18 can be instantaneously vaporized and burned without using any igniter.

[Brief explanation of drawings]

The drawings show an embodiment of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway longitudinal sectional front view of the first embodiment, FIG. 2 is a plan view of the same, and FIGS. 4 shows the second embodiment, FIG. 3 is a longitudinal sectional front view with a part cut away, FIG. 4 is a plan view of the same, and FIG.
The figure is an enlarged longitudinal sectional front view with a portion of the main part cut away. 1... Combustion tube, 3... Combustion plate, 4... Gas chamber,
5... Central opening, 6... Carburizing tube, 11... Fuel scattering end, 15... Annular step, 16... Lower combustion surface, 17... Gas nozzle hole, 18... Upper combustion surface,
19...Gas outlet, 20...Ignition wall surface, 25...
... Sloped surface, 26... Flame hole for fire transfer.

Claims (1)

[Scope of Claims] 1. A combustion disk is provided on the inner bottom side of a substantially flat combustion cylinder to form a gas chamber, and a central opening of the gas chamber has a fuel scattering end on the periphery of the open base. In a device in which the provided vaporizing cylinder is rotatably positioned to communicate the inside of the vaporized body and the gas chamber, the combustion disk has an inner horizontal surface bordered by an annular step formed upwardly around the central opening. A vaporizing burner characterized in that a lower combustion surface is formed with gas injection holes, and an outer horizontal surface is formed on an upper combustion surface with gas injection holes. 2. The vaporizing burner according to claim 1, wherein the corner between the upper combustion surface and the ignition mural is formed into an inclined surface, and the inclined surface is provided with flame transfer holes. .