JPS6237611A - Vaporization burner - Google Patents

Abstract

PURPOSE:To be able to continue always stable vaporization burning by installing a specific outer jacket and an inner jacket in such a manner that the outer jacket is directly secured to a rotating shaft inserted into a burning cylinder with a gas chamber inside and the inner jacket has suction forced-feed blades and two jackets rotate together via a mixed gas flow path between the two. CONSTITUTION:At the bottom wall side of a burning cylinder 1 an adjacent suction chamber 2 with a motor 3 inside is installed and the burning chamber 1 and the suction chamber 2 are partitioned and divided. A rotating shaft 4 is inserted into the burning cylinder 1 from the suction chamber 2 side; and at the top end of the rotating shaft, an outer jacket 5 of which circumferential wall facing a fuel vaporizing part 8 is formed, is directly connected with the shaft. At the inside of the outer jacket 5, an inner jacket 9 having a number of suction forced-feed blades 11 radially placed around a drum is connected with the outer jacket 5 in order to rotate with the outer jacket as one body. By suction action of the suction forced-feed blades 11 rotating synchronously with the outer 5 and inner 9 jackets, evaporation gas and burning air generated in the mixed gas flow path 14 are quickly sucked and the mixed gas is fed with force into a mixed gas chamber 22 under stirred condition, resulting in sure stirred mixing.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention enables the evaporation of fuel to generate vaporized gas and the generation of mixed gas more efficiently, and automatically converts fuel from main combustion to green flame vaporization combustion. This invention relates to a vaporizing burner that can be transferred to

Conventional technology Conventionally, a gas chamber is provided with a tapered vaporizer tube fixed to the tip of a rotating shaft protruding toward the combustion chamber side, and a flame port opening into the combustion chamber at the opening on the enlarged diameter side of the vaporizer tube. An air passage is formed between the outer circumferential surface of the gas inlet tube and the inner circumferential surface of the vaporization tube, with the gas introduction tube facing in communication, and a liquid fuel supply pipe is opened at the inner end of the vaporization tube to supply air inside the vaporization tube The liquid fuel supplied to the end is diffused to the opening side of the vaporization cylinder by the centrifugal force of the vaporization cylinder, and a combustion air supply path is connected to the opening side of the vaporization cylinder in the air passage, and the fuel is mixed with the fuel in the air passage. A combustion device capable of continuing good vaporization combustion by countercurrently flowing combustion air with the combustion air is well known and is described in the present application, for example, in Japanese Patent Publication No. 11762/1983.

Problems to be Solved by the Invention By the way, in the case of a combustion device such as the above-mentioned known combustion device in which the direction of diffusion and transfer of fuel is simply made to flow counter-currently to the direction of flow of combustion air, evaporation occurring in the air passage The vaporized gas is forced into the gas chamber along with the combustion air while riding the flow of the combustion air, and there is no means to actively stir and mix the vaporized vaporized gas and the combustion air during the flow process, so the air passage The evaporated vaporized gas generated therein and the combustion air were not reliably stirred and mixed, and the resulting mixed gas was not homogeneous, resulting in a problem that vaporization and combustion were not stable.

Therefore, the first aspect of the present invention is to stir and mix the evaporated vaporized gas generated in the air mixture passage and suction combustion air while reliably sucking them using suction and pressure feeding blades, and to make the gas into homogeneous humid gas. The present invention provides a vaporizing burner capable of continuously stably vaporizing combustion by pressurizing the vapor into the chamber, and in addition to the object of the first invention, the second invention provides Vaporized gas and combustion air are injected onto the outer circumferential surface of the mixed gas chamber wall using the suction and pressure feeding action of the suction and pressure sending blades to further improve the agitation and mixing condition, and the air is pumped into the gas chamber as a more homogeneous mixed gas for long-term use. The above problem has been solved by providing a vaporizing burner that can continue stable vaporizing combustion over a long period of time.

Means for Solving the Problem Therefore, the technical problem of the present invention is to ensure the agitation and mixing of the evaporated gas generated in the moisture passage and the suction combustion air, and to quickly produce homogeneous moisture gas with no concentration. The aim is to achieve stable vaporization combustion at all times.

In order to solve the above technical problem, in particular, the invention of item 1,
A mantle having a closed upper end, an open base end, and a peripheral wall formed as a fuel evaporation section is directly connected to a rotating shaft inserted into a combustion cylinder having a gas chamber inside. An inner part that can rotate integrally with the mantle through an air mixture passage whose one end is connected to the intake passage is arranged between the inner part and the inner part that faces the fuel evaporation section.・The evaporated vaporized gas generated by the combustion air and the combustion air sucked from the intake passage toward the mixture passage are directly stirred and mixed, and are then force-fed to the mixture gas chamber in the inner mantle, and then introduced into the gas chamber by multiple suction systems. A vaporizing burner is characterized in that it is provided with pressure-feeding blades, and the invention of item 2 is provided with a rotary shaft inserted into a combustion cylinder having a gas chamber inside, the upper end of which is closed and the base end of which is open; and a mantle having a peripheral wall formed in the fuel evaporating part is directly connected to the mantle, and an inner part is provided inside the mantle that can rotate integrally with the mantle through an air mixture passage whose one end is connected to the intake passage, Inside the above-mentioned inclusion, a mixture gas chamber wall is further installed from the bottom wall side of the combustion cylinder, and a mixture gas chamber whose discharge side is connected to the gas chamber is formed between the inclusion and the mixture gas chamber wall. At the same time, around the inner part facing the fuel evaporation section, moisture gas is added while directly stirring and mixing the evaporated vaporized gas generated in the air mixture passage and the combustion air sucked toward the air mixture passage from the intake passage. This vaporizing burner is characterized by being provided with a large number of suction and pressure blades that force the gas into the gas chamber through the chamber.

Made for The above technical means works as follows (see Figure 1).

First, when the outer mantle 5 and the inner mantle 9 are rotated when starting combustion, the suction and pressure feeding blades 11 are also rotated in synchronism, and the intake passage 16 is rotated.
Combustion air is sucked into the air mixture passage 15, and then, by the force feeding action of the suction and pressure blades 11, it is forced into the gas chamber 11 via the air mixture gas chamber 22 provided inside the air intake 9, and finally into the gas chamber. It is ejected from 17. Therefore, if fuel is supplied along the inner peripheral surface of the mantle 5, the fuel will diffuse along the inner peripheral surface due to the rotational centrifugal action of the mantle 5 and move toward the open end, then become fine particles from the peripheral end and burn. It is sprayed into the cylinder 1, and ignition causes raw combustion. When raw combustion occurs in this way, the entire mantle 5 is heated by the rising raw combustion flame, and the mixture passage 1
When the temperature in fuel evaporator 4 is raised to a temperature at which the fuel is evaporated, the supplied fuel is diffused and transferred along the inner peripheral surface of fuel evaporator 8, and is evaporated and vaporized to generate vaporized gas. .

When the evaporated vaporized gas of fuel is generated in the air mixture passage 14 as described above, the evaporated vaporized gas and the intake passage 16
The combustion air sucked into the air mixture passage 14 through the air mixture passage 14 is sucked by the suction and pressure sending blades 11, and is forcedly sent to the air mixture gas chamber 22 provided in the air mixture 9 under stirring and mixing. While being retained in the wide-area mixed gas chamber 22,
The mixture is further stirred and mixed to become a completely homogeneous humid gas, which is then pumped into the gas chamber 17, where it is then combusted with fumes under a constant pressure state.

In addition, in FIG. 2, the evaporated vaporized gas generated in the mixture passage 14 and the combustion air sucked into the mixture passage 14 through the intake passage 16 are both sucked by the suction pressure blade 11, and are stirred and mixed. Under these conditions, the mixture is forced toward the gas chamber wall 32 and collides with it, promoting the stirring and mixing action. Therefore, the evaporated vaporized gas and the combustion air that are force-fed into the mixed gas chamber 33 are again subjected to the stirring and mixing action by the suction and pressure sending blades 11 and the stirring and mixing action by the collision with the mixed gas chamber wall 32. Therefore, the mixed gas becomes a completely homogeneous gas, which is forced into the gas chamber 17, and then is combusted with jets under a constant pressure state.

Embodiments The structure of the vaporizing burner according to the present invention will be described with reference to preferred embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a bottomed cylindrical combustion tube with an open upper end, and on the bottom wall side of the combustion tube 1, an intake chamber 2 in which an electric motor 3 is housed is provided adjacently. A combustion tube 1 and an intake chamber 2 are partitioned and divided by the bottom wall of the combustion tube 1. Reference numeral 4 denotes a rotary shaft inserted into the combustion tube 1 from the intake chamber 2 side, and the top end of the rotary shaft 4 is closed by a closing wall 6, and the periphery of the base end open side is connected to the open side of the combustion tube 1. The outer mantle 5 is formed into a bent shape, the peripheral edge thereof becomes the fuel scattering end 7, and the peripheral wall is formed in the fuel evaporating part 8, and the outer mantle 5 is directly connected to the outer mantle 5.
The inside of the mantle 5 is provided with an upper wall 10 with an open center at the top, a large number of suction and pressure wing pieces 11 are provided radially around the body, and a guide horizontally extending outward is provided at the bottom. wall 12
The hollow-shaped inner part 9 provided with the inner part 9 is connected to the outer mantle 5 through a suitable connecting member 13 so that it can rotate integrally with the mantle 5.

A narrow fuel flow passage 14 is provided between the upper wall 10 of the inner part 9 and the closing wall 6 of the outer mantle 5, and a narrow fuel flow passage 14 is provided between the fuel evaporating section 8 of the outer mantle 5 and the suction/pressure feeding blade 11. Fuel flow passage 14
Furthermore, an air mixture passage 15 communicating with the inside of the intake chamber 2 via an intake passage 16 is formed on the proximal end side. 17 extends over the entire inner periphery of the upper and bottom wall sides of the combustion cylinder 1,
The gas chamber is formed by extending the combustion disk 18 at an appropriate distance from the combustion tube 1, and the cylinder wall surface of the combustion disk 18 has a large number of holes that direct the mixed gas toward the mantle 5 for fume combustion. Gas ejection holes 19... are bored. An air-fuel mixture inlet 20 is opened in the center of the combustion plate 18, and an upright wall 21 is raised on the periphery of the opening at an inner position so as to cover the lower part of the inner part 9. The mixture gas chamber 22 formed inside the gas chamber 17 is communicated with the gas chamber 17. Therefore, the position facing the intake passage 16 has combustion! 11
Of course, 8 is not stretched.

Reference numeral 23 denotes a bent cover wall disposed between the combustion disk 18 outside the position where the intake passage 16 is opened and the peripheral end on the proximal open side of the mantle 5, and the surface of the cover wall 23 A slight gap 24 is formed between the outer peripheral end surface of the mantle 5 on the proximal open side.

Reference numeral 24 denotes a rotation gap formed between the bottom wall and upright wall 21 of the combustion disk 18 and the guide wall 12 provided at the lower part of the inner part 9. Reference numeral 25 denotes a fuel supply device that diffuses fuel along the inner peripheral surface of the mantle 5, and the fuel supply device 25 is constructed as follows.

That is, the center of the closing wall 6 of the mantle 5 is bulged outward, and a fuel injection gap 28 is provided on the inner surface of the closing wall 6 at the position where it bulges out, at the open end on the large diameter side of the inverted conical hollow body. Lid plate 2
The fuel oil diffuser 26 formed by integrally attaching the fuel oil diffuser 26 and the closing wall 6 and the cover plate 27 are attached to the rotating shaft 4 via the mounting bracket 29.
The distal end opening of the fuel supply pipe 30 is directly connected to the fuel supply pipe 30 and is configured so that the inner surface of the small diameter side of the fuel oil diffuser 26 faces the tip opening of the fuel supply pipe 30.

31 is an ignition plug disposed within the combustion rXJI.

The vaporizing burner shown in FIG. 2 shows an embodiment of the vaporizing burner according to the second invention. The moisture gas chamber wall 32 erected from the wall side is deeply inserted to produce a humid gas whose discharge side opens at the center of the combustion disk 18 between the inner peripheral surface of the inner part 9 and the outer peripheral surface of the mixture gas chamber wall 32. A mixed gas chamber 22 connected to the gas chamber 1γ via an inlet 20 is provided, and the evaporated vaporized gas and combustion air, which are pumped under stirring and mixing by the suction and pressure sending blades 11, are transferred to the mixed gas chamber. The jets collide vigorously toward the outer peripheral surface of the wall 32 to agitate and mix the evaporated gas and the combustion air within the mixture gas chamber 22, and the resulting complete and homogeneous mixture gas is produced. gas chamber 1
T, and was able to stably continue good green flame vaporization combustion over a long period of time, and the other configuration is exactly the same as that of the vaporization burner shown in Figure 1.

Note that the configuration of the gas chamber 1T and the configuration of the refueling device 25 described in the embodiments of the present invention are not limited to those of the above embodiments, and gas chambers and refueling devices having other configurations may be used. Of course, there is no difference whatsoever.

Effects of the Invention In short, since the present invention has the above-mentioned specific configuration, the suction action of the suction and pressure blades 11 that rotate in synchronization with the outer mantle 5 and the inner mantle 9 causes the air flow to occur in the air mixture passage 14. Evaporated vaporized gas and combustion air are quickly sucked, and these are forced into the mixture gas chamber 22 under stirring using the suction and pressure feeding blades 1 to ensure the stirring and mixing. As a result, the obtained air-fuel mixture is complete and homogeneous, and not only can stable blue-flame vaporization combustion be carried out well over a long period of time, but also the air-fuel mixture is The evaporated vaporized gas and the combustion air, which are force-fed into the gas chamber 22, collide with the wall 32 of the air mixture gas chamber under stirring and mixing, thereby further promoting the stirring and mixing, thereby reducing the length of the air to a short i length. Even with the small mixed gas chamber 22, it is possible to easily obtain a more homogeneous mixed gas.

[Brief explanation of the drawing]

The drawings show embodiments of the vaporization burner according to the present invention, in which FIG. 1 is a partially cutaway longitudinal sectional front view of the vaporization burner according to the first embodiment, and FIG. 2 is a longitudinal sectional view of the vaporization burner according to another embodiment. FIG. 3 is a longitudinal sectional front view with a portion of the burner cut away.

Claims (2)

[Claims] (1) A mantle having a closed upper end, an open base end, and a peripheral wall formed as a fuel evaporation section is directly connected to a rotating shaft inserted into a combustion cylinder with a gas chamber inside, and the inside of the mantle is , an inner mantle that can rotate integrally with the mantle via an air mixture passage whose one end is connected to the intake passage is disposed between the mantle and the mantle, and an air mixture passage is provided around the inner mantle facing the fuel evaporation section. The evaporated vaporized gas generated inside the inner casing and the combustion air sucked from the intake passage toward the air mixture passage are directly stirred and mixed while being force-fed to the air mixture gas chamber inside the inner mantle, and then introduced into the gas chamber through multiple suction systems. A vaporizing burner characterized by being provided with pressure-feeding blades. (2) A mantle with a closed upper end, an open base end, and a peripheral wall formed as a fuel evaporation section is directly connected to a rotating shaft inserted into a combustion cylinder with a gas chamber inside, An inner mantle that can rotate together with the mantle is arranged between the mantle and the mantle through an air mixture passage whose one end is connected to the intake passage, and inside the inner mantle, an air mixture gas chamber is connected from the bottom wall side of the combustion tube. An air mixture gas chamber whose discharge side is connected to the gas chamber is provided between the inner mantle and the wall of the air mixture gas chamber by erecting a wall, and an air mixture passage is provided around the inner mantle facing the fuel evaporation section. It is characterized by the provision of a large number of suction vanes that directly agitate and mix the evaporated gas generated in the air intake passage with the combustion air sucked into the air mixture passage and forcefully feed it through the air mixture gas chamber to the gas chamber. vaporizing burner.