JPS5950007B2 - vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vaporizing burner that atomizes and sprays fuel to burn it live, and then rapidly evaporates and burns the fuel using combustion flames.

Previously, the present applicant installed a rotary vaporizer in a combustion cylinder, atomized fuel supplied into the rotary vaporizer with forced air into the combustion cylinder, and caused live combustion. We have developed a vaporization burner that evaporates and burns fuel by heating it, and its implementation has shown considerable effects, such as being able to combust fuel as efficiently and completely as vaporized fuel. .

By the way, in the above-mentioned vaporizing burner, a blower tube that blows forced air is deeply inserted into the rotary vaporizer, and the fuel is discharged in the air mixture path formed between the blower tube and the inner peripheral surface of the rotary vaporizer. Since the evaporated gas and forced air are mixed to create a mixture of gases, the mixture path needs to be quite long in order to always generate a uniform mixture of gases. Therefore, the height of the rotary vaporizer inevitably increases, making it difficult to downsize the burner.

In view of the above, the present invention includes a blower tube provided at the center of the rotary vaporizer so as to rotate integrally therewith, a gas chamber formed between the lower end of the rotary vaporizer and the bottom surface of the combustion tube, and an outer wall of the blower tube. By forming a meandering air mixture path with multiple upper and lower stages between the surface and the inner circumferential surface of the rotary vaporizer, even if the rotary gasifier is made into a flat shape, the required length of the air mixture path can be secured inside the rotary vaporizer. The present invention is intended to provide a vaporizing burner that can perform stable vaporizing combustion at all times while also reducing the size of the burner. A preferred embodiment will be described below.

In FIG. 1, reference numeral 1 denotes a combustion tube with an open top end and a closed bottom. A ventilation chamber 2 is adjacent to the center of the bottom of the combustion tube 1, and protrudes into the combustion tube 1 from the side of the ventilation chamber 2. A rotary vaporizer 4 whose upper end is closed and whose lower end is open is fixed to the upper end of the rotating shaft 3.

A blower tube 5 is provided at the center of the rotary vaporizer 4 so as to surround the rotary shaft 3, and the upper end of this blower tube 5 faces the inner upper part of the rotary vaporizer 4, and its upper end extends outward. The partition wall 6 extends horizontally to form a partition wall 6, and the partition wall 6 has a plurality of mixtures attached to a partition wall 8 fixed to the lower end of the rotating gas lower body 4 to maintain a fuel scattering gap 7 and extend inward. The blower tube 5 is fixedly supported by a support 9 that also serves as a gas stirring blade, and rotates integrally with the rotary vaporizer 4, and the partition walls 6 and 8 separate the outer peripheral surface of the blower tube 5 and the rotation. A meandering air mixture path 1 extending over multiple stages above and below between the inner circumferential surface of the vaporized body 4
0 is formed.

Reference numeral 11 denotes a bottom wall of the gas chamber, and a vertically standing portion 11a is formed at the inner end of the bottom wall 11 of the gas chamber, and overlaps with the lower end of the blower tube 5 with a rotational gap, and the outer side thereof The gas chamber 12 surrounded by the gas chamber bottom wall 11, the partition wall 8 and the blower tube 5 is formed with an outer circumferential vertical surface 11b.
It is formed between the lower end of the combustion tube 1 and the bottom surface of the combustion tube 1.

A large number of flame holes 13 are bored in the outer circumferential vertical surface 11b of the gas chamber 12.

An inverted conical fuel diffuser 1 is located at the center of the upper end of the rotary vaporizer 4.
4 is fixed to the rotating shaft 3 via a mounting member 15,
A fuel supply diffusion section 17 is configured such that the tip of the fuel supply pipe 16 faces a position close to the outer peripheral surface of the fuel diffusion body 14 .

18 is an ignition plug, and 19 is a combustion secondary air ventilation passage that runs from the blower chamber 2 through the lower surface of the gas chamber bottom wall 11 to the inner and outer peripheral portions of the combustion tube 1.

What is shown in FIG. 2 is another example of the one shown in FIG. A large number of flame holes 13 are formed on the horizontal surface 11b' of the folded back horizontally.
The structure is the same as that shown in FIG. 1, except that the fuel diffuser 14' of the fuel supply diffusion section 17 is formed integrally with the rotating gas 4.

Next, the operation of the present invention will be explained.

Now, when starting the burner, the rotary vaporizer 4 is rotated at high speed, forced air is blown from the blower chamber 2 to the blower tube 5 inside the rotary vaporizer 4, and the fuel supply diffusion section 17 is sent from the fuel supply pipe 16.
When fuel is supplied to the combustion chamber 1, the fuel is subjected to a centrifugal action on the circumferential surface of the fuel diffuser 14, 14', and is dispersed into fine particles along the inner circumferential surface of the rotary vaporizer 4, and flows through the fuel scattering gap 7 into the combustion tube 1. It is atomized and dispersed inside.

If the ignition plug 18 is used to ignite the ignition, main combustion will occur within the combustion tube 1, and the rotary vaporizer 4 will be rapidly heated by the raw combustion flame, so that the fuel will evaporate and vaporize within the rotary vaporizer 4. The vaporized gas is mixed with the forced wind in the air mixture path 10 to generate an air mixture, which is stored in the gas chamber 12.
The flame is ejected into the combustion tube 1 from the nozzle ports 13 and 13' at a constant pressure, and vaporization combustion continues within the combustion tube 1.

By the way, since the air mixture path 10 has a meandering shape in multiple stages above and below within the rotary vaporizer 4, its length can be made sufficiently long even if the rotary vaporizer 4 is made into a flat shape, and the hot air path 10, uniform hot gas is generated.

In particular, since the support body 9 located in the air mixture path 1o also serves as a hot gas stirring blade, the above-mentioned effect is further promoted thereby, and the vaporization combustion can be always stabilized.

Further, as mentioned above, the rotary vaporizer 4 has an air mixture passage 10 of a required length.
Since this can be made into a very flat shape, the burner can be made smaller.

In short, the present invention provides a combustion tube 1 with an open top and a closed bottom.
A flat rotary vaporizer 4 with a closed upper end and an open lower end is provided inside the rotary vaporizer 4, and a blower tube 5 that communicates with the blower chamber 2 adjacent to the bottom surface of the combustion tube 1 is integrated in the center of the rotary vaporizer 4. A fuel supply diffusion section 17 is provided at the upper end of the rotary vaporizer 4, and a gas chamber 12 is formed between the lower end of the rotary vaporizer 4 and the bottom surface of the combustion tube 1. 5 and the inner circumferential surface of the rotary vaporizer 4, a meandering moisture path 10 with multiple upper and lower stages extending from the fuel supply diffusion section 17 to the gas chamber 12 is formed. It is possible to secure an air mixture passage 10 of the required length inside the burner, thereby making it possible to downsize the burner.
It is possible to produce a uniform gas mixture in the air mixture passage 10, thereby achieving the effect of always allowing stable vaporization and combustion.

[Brief explanation of the drawing]

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, and FIG. 2 is a partially cutaway longitudinal sectional front view of another example. DESCRIPTION OF SYMBOLS 1... Combustion tube, 2... Blow chamber, 4... Rotating vaporizer, 5... Blow tube, 10... Air mixture path, 12... Gas chamber, 17... Fuel supply Diffusion part.

Claims (1)

[Claims] 1. A flat rotary vaporizer with a closed top end and an open bottom end is provided in a combustion cylinder with an open top end and a closed bottom, and a central part of the rotary vaporizer communicates with a blowing chamber adjacent to the bottom of the combustion cylinder. A blower tube is provided to rotate together, a fuel supply diffusion section is provided at the upper end of the rotary vaporizer, a gas chamber is formed between the lower end of the rotary vaporizer and the bottom of the combustion tube, and the outer periphery of the blower tube is A vaporizing burner characterized in that a plurality of meandering air mixture paths are formed in upper and lower stages from the fuel supply diffusion section to the gas chamber between the surface and the inner circumferential surface of the rotary vaporizer.