JPS6040561B2 - vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that fuel supplied with forced air into a rotary gasifier provided in a combustion cylinder is dispersed in a mist and live-burned, and the rotary gasifier is heated by the raw combustion flame. The present invention relates to a vaporizing burner that generates a mixed gas of evaporated fuel gas and forced air to vaporize and burn the mixture.

A cylindrical rotary vaporizer with the tip closed and the base end open is provided in the combustion cylinder, and the fuel stored in the rotary vaporizer is dispersed with forced air into the rotary vaporizer to cause live combustion. In a vaporizing burner, a mixture of evaporated fuel gas and forced air is super-formed by heating a rotary vaporizing body and vaporized and burned.
The fuel supplied into the rotary vaporizer is diffused by centrifugal force and is dispersed into the combustion cylinder from the open base end of the rotary vaporizer, but the atomized fuel is sufficiently finely dispersed. If the flame is not dispersed evenly and evenly, the raw combustion flame will not circulate evenly throughout the combustion cylinder, which may cause ignition failure, and it will not be stable, so the heating of the rotary vaporizer to the fuel vaporization temperature Perhaps because the transition to vaporization combustion is delayed due to the slow process, when the rotary vaporizer has a diameter of 4 mm, the vaporization area of the rotary vaporizer becomes smaller, making it difficult to handle a large amount of fuel. When V is supplied, all of the fuel is evaporated and it is not possible to continuously generate stable passing gas, so unvaporized fuel is inevitably generated, which flows out from the gas outlet and becomes a vaporized combustion flame. This resulted in the defect that abnormal combustion flames (red flames) were generated.

In view of the above, the present invention has an integrally installed fuel diffusion tube inside the rotary vaporizer, which has an open upper end with a diameter slightly smaller than that, has an air outlet in the center of the bottom, and houses a floating wing for a floating light inside. A vaporized combustion flame is jetted downward between the outer peripheral surface of the fuel diffusion tube and the inner peripheral surface of the rotary vaporizer to form a downward gas jet that heats a part of the outer wall surface of the fuel diffusion tube. As a result, the fuel that was supposed to be supplied inside the rotary vaporizer is diffused into a thin film on the inner circumferential surface of the fuel diffusion tube due to the forced wind blowing effect, and is then spread from the upper end onto the inner circumferential surface of the rotary vaporizer. The injection is further diffused into a thin film on the inner peripheral surface of the rotary vaporizer, and can be evenly dispersed in a completely fine particle state from the open end of the rotary vaporizer, thereby ensuring ignition and producing live combustion. Although it is possible to promote the transition to vaporization by stabilizing the flame, even if the rotary vaporizer is made smaller by expanding the fuel diffusion surface and vaporization area within the rotary vaporizer. It is an object of the present invention to provide a vaporizing burner that promotes the atomization and evaporation of fuel and makes it possible to transition from a raw combustion state to accurate blue-flame vaporization combustion in a short time. A preferred embodiment of the configuration shown in the accompanying drawings will be described.

In Fig. 1, reference numeral 1 denotes a combustion tube with an open upper end and a ventilation chamber 2 disposed in the center of the bottom.
A cylindrical rotary vaporizer 4 whose upper end is closed and whose base end is open is attached to the tip of the rotating shaft 3 inserted therein so as to cover the rotating shaft 3.

Reference numeral 5 denotes a fuel diffusion tube, and "the fuel diffusion tube S has a slightly smaller recess than that of a rotary vaporizer turtle, and its peripheral wall extends upward, and the upper end is open and the bottom has an air outlet 6 raised in the center. It is formed into a shape.

The upper end of this fuel diffusion tube 5 is connected to a support piece 7, ? ...・
... is connected to the upper part of the inner circumferential surface of the rotary vaporizer 4 so as to rotate together with the rotary vaporizer 4, and the outer circumferential surface of the fuel diffusion tube 5 and the inner circumferential surface of the rotary vaporizer 4 are In between, a downward gas ejection passage 8 is formed which ejects vaporized combustion flame downward to heat a part of the outer wall surface of the fuel diffusion cylinder 5. Further, a jet gap 9 is formed between the bottom surface of the fuel diffusion tube S and the bottom surface of the combustion tube 1, which communicates from the blower chamber 2 to the bottom of the periphery of the combustion tube 1. Reference numeral 10 denotes a fuel supply pipe, and the fuel supply pipe 18 is piped from the blowing chamber 2 side to the rotary vaporizer 4, and its tip is opposed to the bottom surface of the fuel oil diffusion cylinder 5.

Reference numeral 11 denotes an air mixture rope azusa blade housed in the fuel oil diffusion tube 5, and the air mixture light floating blade 11 is attached to the rotating shaft 3 to supply swirling air to the inner wall surface of the fuel diffusion tube 5. The resulting fuel oil is diffused and atomized, and the generated vaporized gas and forced air are mixed with each other.

An air mixture plate 12 is provided on the Sekiguchi side of the gas ejection passage 8 to narrow the passage. Reference numeral 13 denotes a fuel splasher provided on the open end side of the rotary vaporizer 4, 14 a fuel scatterer end provided on the open end side of the fuel diffusion cylinder 5, and 15 a spark plug.

FIGS. 2 and 3 show other embodiments of the one described above.

The configuration shown in FIG. 2 is a configuration other than that in which the upper end surface of the rotary vaporizer 4 is greatly depressed downward except for the peripheral part, and the air-mixed fly azusa blades 11' are installed on the inner surface of the depressed part. is the same machine as the one shown in Figure 1.

In addition, in the embodiment shown in FIG. 3, an umbrella-shaped guide body 16 is fixed to the center of the upper end of the rotary vaporizer 4, and a hawk light floating feather 1r is placed around it. An inverted cone-shaped fuel diffuser 7 is attached to the center of the upper end of the inside, and the tip of the fuel supply pipe 10 is closely opposed to the circumferential surface of the fuel diffuser 7. It has a vertical structure. The rest of the configuration is the same as the one in Figure 1. 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 ventilation chamber bag toward the rotary vaporizer, and fuel is supplied from the oil supply pipe Kamikoi. It is subjected to centrifugal force on the bottom surface of the fuel diffusion tube 5 and rises in the form of a thin film along its inner circumferential surface, becomes fine particles from the fuel scattering tip 3 of the fuel diffusion tube 5, and becomes the rotary vaporizer 4. Sprayed onto the upper inner surface.

``On the inner circumferential surface of the rotary vaporizer heat,'' the sprayed fuel is further subjected to centrifugal force and is diffused into a thin film along that surface. The particles are atomized, uniformly dispersed, and atomized into the combustion joint.Then, when ignited by the spark plug 15, "
A raw combustion flame is generated in the combustion tube 1, and the rotary vaporizer 41 is rapidly heated to the evaporation temperature of the fuel by the raw combustion flame.
Therefore, from then on, the fuel supplied to the rotary vaporizer 4 is evaporated and vaporized, and mixed with the forced wind by the light azure action caused by the air-fuel mixture rope azusa blade 111 in the rotary vaporizer 4, and the comic gas becomes superfluous. The humid gas is ejected downward from the gas ejection passage 8 into the combustion tube 1, and a vaporized combustion flame is generated in the combustion tube 1, which persists. Since the fuel diffusion tube 5 and the moisture clearing blade 11 are provided to rotate, the fuel supplied to the rotary vaporizer 4 is distributed over the entire inner circumference of the fuel diffusion tube 5 from the start of the burner to during live combustion. The fuel is diffused all over the inner periphery of the rotary vaporizer 4, and at the same time receives a more effective diffusion effect due to the counterfeiting action of the persimmon wind. The fuel that is dispersed is completely atomized and uniformly dispersed.

Therefore, the ignition by the spark plug 15 is ensured, and the
After ignition, the raw combustion flame rapidly stabilizes, and the rotary vaporizer 4 is heated to the temperature at which fuel vaporization occurs in the distance, and a part of the outer wall surface of the fuel diffusion tube 5 is also heated by the raw combustion flame. Since the vaporization of the supplied fuel is promoted, the transition time to vaporization combustion is significantly shortened. Furthermore, after the transition to vaporization combustion, a part of the outer wall surface of the fuel diffusion tube 5 is also heated by the vaporization combustion flame ejected downward from the gas jet passage 8, so that the wall surface of the fuel diffusion tube 5 is also heated by the rotary vaporization flame. The vaporized gas generation surface is similar to 4, and the vaporized area is further expanded.For example, even if a large amount of fuel is supplied, vaporized gas is continuously generated and the mixed gas is homogenized by mixing with the condensed air. The vaporization combustion flame can be stabilized. In addition, since the fuel diffusion surface is enlarged by the fuel diffusion tube 5 as described above, it is possible to downsize the rotary vaporizer 4 and promote downsizing of the burner. In the other embodiment shown in FIG. 2, a long moisture passage is formed by the fuel diffusion tube 5 on the inner and outer periphery of the rotary vaporizer 4, so that the mixing effect of the evaporated fuel gas and the forced air is suppressed. It can be further strengthened.

Other functions are the same as those in Figure 1. Also, the third
In the embodiment shown in the figure, the fuel diffusion surface in the rotary vaporizer 4 is the fuel diffuser 7 and the umbrella-shaped guide 16.
As the fuel is expanded, the complete atomization and uniform diffusion of the fuel are greatly strengthened, further ensuring the aforementioned ignition, stabilizing the raw combustion flame, and shortening the transition time to vaporization combustion. This will further encourage people to do so.

In short, since the present invention has the above-described configuration, the fuel supplied to the rotary vaporizer 4 is diffused and transferred in a thin film form on the inner circumferential surface of the fuel diffusion cylinder 5 by the jet action of the Takaazusa wind. Then, the inner peripheral surface of the rotary vaporizer 4 is sprayed from its upper end,
The particles are further diffused and transferred into a thin film on the inner circumferential surface of the rotary vaporizer 4, so that the particles can be uniformly distributed from the open end of the rotary vaporizer 4 in a completely grained state, thereby ensuring ignition. In order to promote the transition to vaporization combustion by stabilizing the raw combustion flame, after the transition to vaporization combustion, the vaporization combustion flame is ejected downward from the gas jetting passage 8,
Since a part of the outer wall surface of the fuel diffusion tube 5 can be heated, the fuel diffusion tube 5 can also be used as a vaporization surface similar to the rotary vaporizer 4, and all of the supplied fuel can be used to generate unvaporized fuel. As a result, the fuel diffusion surface and vaporization area within the rotary vaporizer can be expanded, and the rotary vaporizer can be easily miniaturized.

[Brief explanation of drawings]

The drawings show embodiments of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway vertical front view, and FIGS. 2 and 3 are partially cutaway longitudinal front views of other embodiments. It is a diagram. 1... combustion tube, 2... ventilation chamber, 4...
Rotating vaporizer, 5... fuel diffusion cylinder, 6... air outlet, 8... gas ejection path. Figure l Figure 2 Figure 3

Claims (1)

[Claims] 1. A cylindrical rotary vaporizer with a closed top end and an open base end is installed in a combustion cylinder with an open top end and a ventilation chamber connected to the center of the bottom, and a cylinder with a slightly smaller diameter than the combustion cylinder with a closed top end and an open base end. A fuel diffusion tube with an open top end, an air blowing port in the center of the bottom, and an air-fuel mixture stirring blade housed inside is attached integrally, and the outer peripheral surface of the fuel diffusion tube and the inner peripheral surface of the rotary vaporizer are connected to each other. A vaporizing burner characterized in that a downward gas ejecting path is formed between and ejecting vaporizing combustion flame downward to heat a part of the outer wall surface of the fuel diffusion cylinder.