JPH0373767B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention automatically converts fuel from raw combustion to green flame vaporization combustion by evaporating fuel and generating vaporized gas and generating mixed gas more efficiently. This invention relates to a vaporizing burner that can be transferred to

Prior Art Conventionally, a tapered vaporization tube is fixed to the tip of a rotating shaft that projects toward the combustion chamber side, and the opening on the enlarged diameter side of the vaporization tube communicates with a gas chamber equipped with a flame port that opens into the combustion chamber. With the gas introduction cylinder facing, an air passage is formed between the outer peripheral surface of the gas introduction cylinder and the inner peripheral surface of the vaporization cylinder,
A liquid fuel supply pipe is opened at the inner end of the vaporizer cylinder, and the liquid fuel supplied to the inner end of the vaporizer cylinder is diffused toward the opening side of the vaporizer cylinder by the centrifugal force of the vaporizer cylinder, and the liquid fuel is spread to the opening side of the vaporizer cylinder in the air passage. A combustion device capable of continuing good vaporization combustion by connecting a combustion air supply path to the opening side and causing the fuel and combustion air to flow countercurrently in the air passage was developed before this application, for example, in the Japanese Patent Publication Publication No. 1983-1983. 11762
It is described in the publication No. 1 and is publicly known.

Problems to be Solved by the Invention By the way, in the case of 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 generated 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 evaporated 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 agitate 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 create a homogeneous mixed gas. The present invention provides a vaporizing burner capable of continuously stably vaporizing combustion by pressurizing the vapor into the combustion chamber.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 stirring and mixing of the evaporated vaporized gas generated in the air mixture passage and the intake combustion air, so as to produce a homogeneous air mixture with no concentration. The objective is to quickly obtain the desired amount of gas and to maintain stable vaporization combustion.

In order to solve the above technical problem, in particular, the invention of item 1 is provided in which a rotating shaft is inserted into a combustion cylinder having a gas chamber inside, the upper end is closed, the base end is open, and the peripheral wall is a fuel evaporator. An inner mantle formed in the above-mentioned mantle is directly connected to the mantle, and an inner mantle that can rotate together with the mantle is disposed between the mantle and the mantle through an air mixture passage whose one end is connected to the intake passage, The air mixture inside the inner mantle is heated around the inner mantle facing the inner mantle by directly stirring and mixing the evaporated vaporized gas generated in the air mixture passage and the combustion air sucked into the air mixture passage from the intake passage. A vaporizing burner is characterized in that a large number of suction and pressure blades are provided to introduce the gas into the gas chamber after pressure feeding into the gas chamber, and the invention according to item 2 is inserted into a combustion cylinder provided with a gas chamber inside. 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 the rotating shaft, and an air mixture passage having one end connected to the intake passage is connected to the inside of the mantle. An inner mantle that can rotate integrally with the outer mantle is disposed through the inner mantle, and a mixture gas chamber wall is further provided upright from the bottom wall side of the combustion tube to form a connection between the inner mantle and the mixture gas chamber wall. A mixture gas chamber whose discharge side is connected to the gas chamber is provided in between, and around the inner mantle facing the fuel evaporation section, evaporated vaporized gas generated in the mixture passage and sucked from the intake passage toward the mixture passage are provided. This vaporizing burner is characterized by being provided with a large number of suction/pressure blades that directly agitate and mix the combustion air produced by the gas mixture and forcefully feed it through the mixed gas chamber to the gas chamber.

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

First, when starting combustion, the outer mantle 5 and the inner mantle 9 are
When the suction and pressure sending blades 11 are rotated, the suction and pressure sending blades 11 are also rotated in synchronism, sucking combustion air into the air mixture passage 15 from the intake passage 16, and then by the pressure feeding action of the suction and pressure sending blades 11, the air is provided inside the inner mantle 9. The mixed gas is fed under pressure to the gas chamber 17 through the mixed gas chamber 22, and finally ejected from the gas chamber 17. Therefore, if fuel oil is supplied along the inner circumferential surface of the mantle 5, the fuel will diffuse along the inner circumferential surface due to the centrifugal action of the mantle 5 and move toward the open end, whereupon it will become fine particles from the peripheral end and be combusted. 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 when the temperature inside the air mixture passage 14 rises to a temperature at which the fuel is evaporated, the fuel is no longer supplied. The fuel oil is evaporated and vaporized while being diffused and transferred along the inner circumferential surface of the fuel evaporator 8 to generate vaporized gas.

When the evaporated vaporized gas of the fuel is generated in the air mixture passage 14 as described above, both the evaporated vaporized gas and the combustion air sucked into the air mixture passage 14 through the intake passage 16 are absorbed by the suction and pressure feeding blades. 11, the air is pumped under stirring and mixing to the mixture gas chamber 22 provided in the inner mantle 9, and while it is retained in the mixture gas chamber 22 with a wide area, the mixture is further stirred and mixed. After the mixed gas becomes completely homogeneous and is forced into the gas chamber 17, it is combusted with jets 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 such conditions, the mixture is forced toward the gas chamber wall 32 and collides with it.
Stirring and mixing action is promoted. Therefore, the evaporated vaporized gas and the combustion air forced into the mixture gas chamber 33 undergo the stirring and mixing action by the suction and pressure blades 11 and the stirring and mixing action by the collision with the mixture gas chamber wall 32. The mixed gas becomes completely homogeneous and is forced into the gas chamber 17, where it is then 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 adjacent to the bottom wall side of the combustion tube 1 is an intake chamber 2 in which an electric motor 3 is housed. A combustion tube 1 and an intake chamber 2 are partitioned by a bottom wall of the combustion tube 1. 4 is the combustion tube 1 from the intake chamber 2 side
A rotating shaft inserted into the interior of the rotary shaft 4, the upper end side of which is closed by a closing wall 6, and the vicinity of the open base end formed in a bent shape toward the open side of the combustion tube 1. A jacket 5 having a peripheral edge thereof as a fuel scattering end 7 and a peripheral wall formed in a fuel evaporating section 8 is directly connected to the jacket 5. Inside the jacket 5, an upper wall 10 with an opening in the center is provided at the top, and a trunk A large number of suction and pressure-feeding blades 11 are provided radially around the inner mantle 9, and a hollow inner mantle 9, which has a guide wall 12 extending outward horizontally at the lower part, is made of a suitable material so that it can rotate together with the outer mantle 5. It is connected to the mantle 5 via a connecting member 13. A narrow fuel flow passage 14 is provided between the upper wall 10 of the inner mantle 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 mantle 5 and the suction/pressure feeding blade 11 on the upper end side. The fuel flow passage 14 is also formed with an air mixture passage 15 whose base end communicates with the inside of the intake chamber 2 via an intake passage 16. 17 is a gas chamber formed by extending a combustion plate 18 at an appropriate distance from the combustion tube 1 over the entire inner periphery of the cylinder wall side and the bottom wall side of the combustion tube 1; A large number of gas ejection holes 19 are perforated in the cylindrical wall surface of the combustion plate 18 for directing the mixed gas toward the mantle 5 for fume combustion. 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 mantle 9. The mixture gas chamber 22 and the gas chamber 17 formed inside are communicated with each other. Therefore, it goes without saying that the combustion disk 18 is not provided in a position facing the intake passage 16.

Reference numeral 23 denotes a bent-shaped covering 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;
A slight gap 24 is formed between the surface of the mantle 5 and the peripheral end surface of the proximal open side of the mantle 5.

24 is a bottom wall and an upright wall 21 of the combustion disk 18;
This is a rotation gap formed between the inner mantle 9 and the guiding wall 12 provided at the lower part thereof. Reference numeral 25 denotes a fuel supply device for distributing fuel in a diffused manner 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. The fuel diffuser 26 formed by integrally attaching the lid plate 27 is brought into close contact with the closing wall 6 and the lid plate 2.
7 is directly connected to the rotating shaft 4 via the mounting bracket 29, and the fuel supply pipe 3 is connected to the inner surface of the small diameter side of the fuel diffuser 26.
It is configured so that the tip opening of 0 faces.

31 is an ignition plug disposed within the combustion tube 1.

The vaporizing burner shown in FIG. 2 shows an embodiment of the vaporizing burner according to the second invention. The air mixture gas chamber wall 32 erected from the wall side is deeply inserted to create an air mixture between the inner peripheral surface of the inner mantle 9 and the outer peripheral surface of the air mixture gas chamber wall 32, with the discharge side opening at the center of the combustion disk 18. A mixed gas chamber 22 connected to the gas chamber 17 through a gas 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 mixed into a mixed gas. room wall 3
The evaporated gas and the combustion air are stirred and mixed by vigorously colliding the jets toward the outer peripheral surface of the gas mixture chamber 22, and the resulting complete
In addition, the homogeneous gas mixture can be forced into the gas chamber 17 and good blue flame vaporization combustion can be continued stably for a long period of time.The other configuration is the same as that of the vaporization burner shown in Figure 1. They are exactly the same.

Note that the gas chamber 17 described in the embodiment of the present invention
It goes without saying that the configuration of the gas chamber and the oil supply device 25 are not limited to those of the above-mentioned embodiments, and that there is no problem even if the gas chamber and the oil supply device have other configurations.

Effects of the Invention In summary, since the present invention has the above-mentioned specific configuration, the evaporation and vaporization generated in the air mixture passage 14 due to the suction action of the suction and pressure feeding blades 11 that rotate in synchronization with the outer mantle 5 and the inner mantle 9 Gas and combustion air are quickly sucked, and the suction and pressure feeding blades 11
Since the mixed gas can be force-fed into the mixed gas chamber 22 under stirring using the . Of course, stable blue flame vaporization combustion can be carried out well over a period of time.
The evaporated vaporized gas and the combustion air, which are force-fed into the mixed gas chamber 22 by the suction and pressure feeding action, collide vigorously against the mixed gas chamber wall 32 in an agitated and mixed state to further promote the agitation and mixing. Even if the mixed gas chamber 22 has a very short flow rate, it is possible to easily obtain a more homogeneous mixed gas.

[Brief explanation of drawings]

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. 1... Combustion cylinder, 4... Rotating shaft, 5... Mantle, 8
... Fuel evaporation section, 10 ... Inner mantle, 11 ... Suction pressure feeding wing piece, 15 ... Air mixture passage, 16 ... Intake path, 1
7...Gas chamber, 22...Mixture gas, 32...Mixture gas chamber wall.

Claims (1)

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