JPS6354964B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides that even when a combustion flame is ejected in an annular shape around a rotating carburetor, the combustion flame is free from the swirling flow generated by the swirling of the carburetor. This invention relates to a vaporizing burner that can linearly emit an equal amount of combustion flame in an annular shape without causing swirling combustion while shifting to one side due to an attraction effect.

First, as described in Japanese Patent Publication No. 58-15685, the applicant formed a gas passage between an inner combustion tube and an outer combustion tube, and a central opening of the inner combustion tube was provided with a A vaporizing cylinder with one side open is rotatably provided so as to form a gas ejection passage between it and the inner combustion cylinder, and the vaporizing cylinder and the gas ejection passage and the gas passage are formed in a communicating manner. A blower tube is inserted into the cylinder and an opening is inserted into the cylinder, and the mixed gas generated in the vaporization cylinder is combusted in a ring shape through a gas ejection passage and a gas passage provided around the vaporization cylinder. A burner was developed, and as it is put into practice, it is showing considerable effects.

By the way, when the mixed gas generated in the vaporization cylinder is combusted in an annular manner through the gas jet passage and the gas passage communicating with the inside of the vaporization cylinder, the outer combustion cylinder and the inner combustion cylinder are separated. During the transition, the mixed gas that is forced to flow toward the discharge side through the gas passage formed during the transition is swirled in the same direction as the vaporization cylinder due to the swirl attraction effect that occurs as the vaporization cylinder rotates. The combustion flame is continuously ejected from the gas passage and the gas ejection passage in a swirling state to generate a swirling combustion flame.

Therefore, when the combustion flame is ejected while swirling around the vaporizer cylinder as described above, the combustion flame is not only burnt while being biased to one side, but also a density phenomenon occurs in the combustion flame itself. Since the dense combustion flame that is generated is either large or small combustion, the location where it is generated moves each time the amount of oil and air is increased or decreased. The cylindrical wall of the combustion tube is rapidly burnt out by red heat, resulting in a significant decrease in durability and the inability to maintain a stable combustion state.

Therefore, in order to solve the above-mentioned drawbacks of the known vaporizing burner, the present invention aims to create a gas mixture inside the gas passage while swirling the mixed gas generated in the vaporizing cylinder due to the attraction of the swirling flow generated by the rotation of the vaporizing cylinder. Even when the mixed gas is transferred toward the discharge side, the swirling action of the mixed gas is forcibly restricted during the transfer, and an equal amount is released from each gas passage and gas jet passage in a straight line state. This ensures accurate jet combustion, which prevents not only dense combustion flames but also partial red-hot burnout of the outer and inner combustion cylinders, and ensures stable vaporization at all times even during large or small combustion. The purpose of this invention is to obtain a vaporizing burner that can continue combustion.

In view of the above, in order to achieve the above object, the present invention has a structure in which a plurality of air mixture gas circulation prevention bodies are provided at intervals in the middle of a gas passage formed between the inner combustion tube and the outer combustion tube. The vaporizing burner is characterized in that the gas passages are arranged in a radial manner to partition the middle of the gas passages to form a plurality of straight gas passages. Even if the mixed gas moves from the vaporization cylinder through the gas passage while swirling due to the induced effect of the swirling flow, the swirling property of the mixed gas is forcibly controlled by the mixed gas circulation preventer. The combustion flame is regulated to move linearly to the discharge side along the straight gas passage, and an equal amount of combustion flame can be ejected linearly in an annular shape from the gas passage and the gas jetting passage, and as a result, This type of vaporizing burner prevents the phenomenon of concentration of combustion flame due to uneven combustion and the occurrence of partial red-hot burnout accidents of the outer and inner combustion tubes, and is effective not only during large combustion but also during small combustion. Also, stable vaporization combustion can be continued at all times, and the durability of the vaporization burner can be significantly extended.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The vaporizing burner according to the present invention will be described below with reference to preferred embodiments shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes an outer combustion tube made of a thin material such as an iron plate. The center side of the bottom bulges outward to provide a concave portion 2 of an appropriate depth.
Reference numeral 3 denotes an inner combustion tube made of the same material as the outer combustion tube 1, and the inner combustion tube 3 is formed into a bottomed cylinder shape having a relatively short cylinder wall with an open end. Furthermore, the inner combustion tube 3 is arranged within the outer combustion tube 1 so that a gas passage 4 of an appropriate width is formed between the outer combustion tubes 1. And inner combustion tube 3
The opening peripheral wall 5, which is opened at approximately the center of the opening, stands up in a tapered shape to form a recess 6 in the center. 7
is a rotating shaft inserted through the center of the inner combustion tube 3, and a vaporizing tube 8 with one side open is directly connected to the tip of the rotating shaft 7.

A gas mixture 10 is integrally attached to the open side of the vaporization tube 8 with a fuel flow gap 9 between it and the open end of the vaporization tube 8. The above-mentioned mixed gas 10 is formed into a hollow cylindrical shape as a whole so that the front half of the fuel guide cylinder 12 is expanded outward with the boundary wall 11 as a boundary, and the rear half is a cylinder 13 of the same diameter. The tip of the fuel guide cylinder 12 serves as a fuel splashing end 14. The majority of the cylindrical body 13 of the gas mixture 10 described above is fitted into the recess 6 to connect the opening peripheral wall 5 and the gas mixture 1.
An annular gas ejection passage 15 is formed between the fuel guide cylinder 12 of No. 0 and the fuel guide cylinder 12 of No. Therefore, the gas passage 4
Both the gas ejection passage 15 and the gas ejection passage 15 communicate with the inside of the vaporization cylinder 8 . Reference numeral 16 denotes a blower tube inserted into the carburetor tube 8, and the base end side of the blower tube 16 has a ventilation port 1 opened at the center of the concave portion 2 of the outer combustion tube 1.
7 It is attached around the periphery.

18 is a fuel diffuser 1 attached to the inner surface of the carburetor 8
This is an oil pipe arranged so that the tip opening can be seen on the 9 surface. 20 is a bottomed cylindrical cold air guide tube arranged so that a cold air passage 21 is formed on the outer periphery of the outer combustion tube 1, and the cold air passage 21 is opened at the center of the bottom wall side of the cold air guide tube 20. It is communicated with a ventilation opening 22 via a ventilation gap 23. Reference numeral 24 denotes a plurality of mixed gas circulation prevention bodies arranged radially at approximately equal intervals in the middle of the gas passage 4 formed between the outer combustion tube 1 and the inner combustion tube 3, and Due to the arrangement of the gas circulation prevention body 24..., the gas passage 4
is partitioned in the middle, and the mixed gas circulation prevention body 2
A straight gas passage 25 is formed between the vaporizer tube 8
The swirled mixed gas is forcibly regulated by the swirling flow induced by the rotation of the cylinder, so that it is transferred in a straight line. Therefore, the above-mentioned mixed gas circulation prevention body 24
In this method, a plate material of an appropriate length is bent into an L-shape, one horizontal side is formed to form the mounting piece 26, and the other upright side is formed to form the circulation prevention wall 27. They are mounted radially on the inner surface of the bottom wall of the cylinder 1 at approximately equal intervals. 28 is a spark plug.

Although the above-mentioned mixed gas circulation prevention body 24 is not shown, the bottom wall of the outer combustion tube 1 is connected to the inner combustion tube 3.
The same purpose as described above may be achieved by bulging out radially at approximately equal intervals so as to come into contact with the bottom wall of the base.

Next, its effect will be explained.

Now, in FIG. 1, if forced air is blown into the vaporizing cylinder 8 through the air outlet 22 and the air outlet 17, the forced air will be blown out from the gas passage 4 and the gas jetting passage 15. Therefore, when the raw fuel is sent from the oil pipe 18 to the inner surface of the rotating vaporizer 8 through the fuel diffuser 19, the fuel is diffused into a thin film by the centrifugal force of the rotation of the vaporizer cylinder 8 and the blowing action of forced air. The fuel is transferred to the inner circumferential surface of the fuel guide tube 12 through the fuel circulation gap 9, and is scattered from the entire circumference of the fuel scattering end 14 to the inner circumferential surface of the cylinder wall of the inner combustion tube 3, where it is ignited and burnt live. When the fuel is raw-combusted in this manner, the entire vaporization cylinder 8 is heated by the heat of combustion, and the temperature inside the vaporization cylinder 8 is raised to the atmospheric temperature at which vaporization occurs.

Therefore, from then on, the fuel delivered to the inner circumferential surface of the vaporizing tube 8 and the forced air blown into the vaporizing tube 8 are both heated, and the fuel is diffused and transferred along the inner circumferential surface of the vaporizing tube 8. The vaporized gas is quickly evaporated and vaporized while being exposed to the air, and the vaporized gas is mixed with high-temperature wind.
When passing through the cylindrical body 13 of 0, the mixed gas is stirred and mixed, becomes a complete mixed gas, is pressurized into the gas passage 4, and is then ejected from the discharge side of the annular gas passage 4 and gas jet passage 15, It is ignited by the previous raw combustion flame, and the vaporized combustion flame is ejected forward to intensely heat the entire vaporization cylinder 8 with the double ring flame, so that from then on the supplied raw fuel is continuously and reliably mixed. It burns efficiently as a blue flame while turning into gas.

By the way, during vaporization combustion as mentioned above,
The mixed gas that is continuously forced into the gas passage 4 from the vaporization cylinder 8 rotates in the same direction as the vaporization cylinder 8 due to the induced swirling flow generated by the rotation of the vaporization cylinder 8, and passes through the gas passage 4 sequentially to the discharge side. will be migrated towards.

As a result, the combustion flame ejected and burned not only from the gas passage 4 but also from the gas ejection passage 15 is blown out while swirling around the vaporization cylinder 8, so it goes without saying that the combustion flame is biased to one side. A concentration phenomenon occurs in itself, and this concentration phenomenon moves along the gas passage 14 and the gas injection passage 15 when the oil supply amount and air supply amount are adjusted in order to adjust the magnitude of the vaporized combustion amount, and moves along the outer and inner combustion tubes. It is possible to continue stable vaporization combustion by partially burning out the cylinder wall.

However, in the present invention, in the middle of the gas passage 4, a plurality of mixed gas circulation prevention bodies 24...
... are arranged radially at intervals to partition the middle of the gas passage 4 and form a plurality of straight gas passages 25, so that the gas is press-fitted into the gas passage 4 from the vaporization cylinder 8 in a swirling state. When the mixed gas passes through the plurality of mixed gas circulation prevention bodies 24..., it is forcibly regulated and forms a straight line, forming a straight gas passage 25...
After passing through the gas passage 4, the gas is blown and burned in an annular manner from the discharge side of the gas passage 4 in an even amount continuously and linearly forward. On the other hand, the mixed gas pressurized into the gas passage 4 is transferred to the mixed gas circulation prevention body 24 as described above.
As a result, the swirling action is forcibly regulated, so that the combustion flame that is continuously ejected and burned from the gas ejection passage 15 in an annular shape is inevitably ejected forward in a substantially straight line, unlike the conventional flame. Like a vaporizing burner, it prevents the occurrence of the darkening phenomenon of the combustion flame due to uneven combustion and the occurrence of partial red-hot burnout accidents of the outer combustion tube 1 and the inner combustion tube 3, and maintains stable blue flame combustion over a long period of time. can be done.

[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, and FIG. 2 is an enlarged side sectional view taken along the line A--A in FIG. 1. FIG. 3 is an enlarged perspective view of the mixed gas circulation prevention body. DESCRIPTION OF SYMBOLS 1... Outer combustion tube, 3... Inner combustion tube, 4... Gas passage, 8... Evaporation tube, 15... Gas ejection passage, 16... Blower tube, 24... Mixed gas circulation prevention body, 25... Straight gas passage.

Claims (1)

[Claims] 1. A gas passage is formed between the inner combustion tube and the outer combustion tube, and a gas jetting passage is formed between the vaporization tube with one side open at the front side of the central opening of the inner combustion tube and the inner combustion tube. The vaporizing cylinder is rotatably provided so as to form a gas jet passage and the gas passage are connected to each other, and a blower cylinder is inserted into the vaporizing cylinder and opened. A plurality of air mixture gas circulation preventers are arranged radially at intervals in the middle of the gas passage formed between the cylinder and the gas passage to partition the middle of the gas passage, thereby forming a plurality of straight gas passages. vaporizing burner.