JPS5950003B2 - vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vaporizing burner that evaporates and vaporizes fuel from a semi-combusted state at the time of ignition using its combustion flame, and then vaporizes and burns it.

Previously, the applicant installed a rotary vaporizer in the combustion cylinder that atomizes and disperses fuel and generates a mixed gas by mixing the evaporation and vaporization of the fuel with forced air. We have developed a vaporization burner that burns the vaporized fuel raw and then uses the combustion flame to heat the rotary vaporizer to evaporate and burn the fuel. Through its implementation, we have improved combustion efficiency and achieved complete combustion. It has been shown to have considerable effects, such as being able to improve the

By the way, in the above-mentioned vaporizing burner, when the burner is started, the fuel that is atomized and sprayed into the combustion cylinder is ignited by the ignition plug, so the distribution of the atomized fuel within the combustion cylinder may be uneven, resulting in poor ignition. Perhaps because of this, the flame does not circulate properly after ignition, making it difficult to stabilize raw combustion, which tends to cause soot to accumulate on the inside of the combustion cylinder due to incomplete combustion during half-burning, and also to cause vaporization combustion. There were drawbacks such as delays in migration.

In view of the above, the present invention forms an air supply guide path that generates a swirling wind at the base end of the combustion cylinder, and generates a swirling wind at the base of the combustion cylinder at the same time as the burner starts. It quickly and evenly distributes the atomized fuel sprayed from the vaporized body to ensure ignition, and it also improves the circulation of the flame after ignition, stabilizes live combustion, and promotes the transition to vaporized combustion. In addition, the present invention is intended to provide a vaporizing burner that can improve safety by preventing overheating and burning at the base of the combustion cylinder after transition to vaporizing combustion. The preferred embodiment shown in FIG.

In FIGS. 1 and 2, reference numeral 1 denotes a combustion tube with one end open and a base end closed, and the combustion tube 1 has a combustion plate 2.
The combustion disk 2 and the outer disk 3 are sealed at their open ends, and a gas chamber 4 is formed between them.

A large number of flame holes 5 are bored in the circumferential surface of the combustion disk 2.

Reference numeral 6 denotes a rotary vaporizer consisting of a cylindrical body with one end closed and a base end open. It is fixed so as to cover the rotary shaft 7, and the base end side of the rotary vaporizer 6 communicates with the gas chamber 4 via a mixed gas passage 8 formed at the base end of the combustion disk 2 and the outer cylinder 3. has been done.

Further, a ventilation chamber 10 is connected to the base end surface of the combustion tube 1 via a heat insulating material 9.
A blower tube 11 is deeply inserted inside.

This blower tube 11 is integrally molded in a protruding manner with the outer tube 1 of the combustion tube 1, but for convenience, the blower tube 11 is molded separately from the outer tube 3 and then integrated with the outer tube 3. It may be configured as follows.

A fuel scattering end 12 that extends outward is formed at the open base end of the rotary vaporizer 6, and a fuel scattering annular body 13 is attached to this part, so that the fuel scattering end 12 and the fuel A combustion ejection gap 14 is formed between the scattering annular body 13 and the scattering annular body 13 .

An air chamber 16 is formed at the base end of the combustion tube 1 with a rotation gap 15 between it and the rotary vaporizer 6. is communicated with.

A howling air supply swirling guide path 1 is provided on the base end surface of the combustion tube 1.
8 is formed, and the guide path 18 communicates with the air chamber 16. A combustion tube 1 is formed on the front wall of the air supply swirl guide path 18.
Fumarole ports 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, It is perforated.

Reference numeral 21 denotes a fuel oil diffuser, which is fixed to one end of the rotary vaporizer 6, with the tip of the oil supply pipe 22 facing closely to its peripheral surface.

23 is a spark plug. 3 and 4 are other examples of the ones described above, in which the air supply swirl guide path 18 formed on the base end surface of the combustion tube 1 is further extended to the circumferential surface of the open base of the combustion tube 1 to supply air. Swirl guide plates 19', 19, which form a swiveling guide path 18' and generate a unidirectional swirling wind along the combustor 1 from the inside of the combustor 1 toward the center on its peripheral wall.
The structure is the same as that of the embodiment shown in FIGS. 1 and 2, except that the blowholes 20', 20' are formed in a cut-and-raised shape.

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

Now, when starting the burner, the rotary vaporizer 6 is rotated at high speed, forced air is blown into the air blowing chamber 10, and fuel is supplied from the fuel supply pipe 22, and the fuel is transferred to the fuel diffuser rotating at high speed. It is diffused into the rotary vaporizer 6 by centrifugal action on the circumferential surface of the rotary vaporizer 21, and further inside the rotary vaporizer 6, the blower tube 1
It mixes with the forced air blown from 1 and becomes fine particles and is sprayed into the combustion tube 1 through the fuel spray gap 14, so when it is ignited by the spark plug 23, live combustion occurs in the combustion tube 1. arise.

When raw combustion occurs in the combustion tube 1, the rotary vaporizer 6 is rapidly heated to a high temperature by the combustion flame, so that the fuel sprayed into the rotary vaporizer 6 evaporates and becomes vaporized gas. Furthermore, it mixes with the forced air blown from the blower tube 11 to become hot gas, and the mixed gas passes through the mixed gas passage 8 and is stored in the gas chamber 4 .

The mixed gas stored in the gas chamber 4 is ejected at a constant pressure into the combustion tube 1 from the numerous flame holes 5 of the combustion plate 2, and vaporization combustion occurs within the combustion tube 1.

Once the state shifts to vaporization combustion, the rotary vaporizer 6 continues to be heated to a high temperature, so vaporization combustion continues in the combustion tube 1.

By the way, when forced air is blown into the ventilation chamber 10, a part of the forced air is blown from the ventilation chamber 10 to the air chamber 16 through the ventilation passage 17, and the pressure is further adjusted to a constant level in the air chamber 16 before being blown. Air is blown to the air swirling guideway 18, and its fumarole 20
, 20... is ejected from.

And the blowing wind is the turning guide plate 19.19...
・A swirling wind that swirls in one direction from the inner base of the combustion tube 1 toward the open side of the combustion tube 1 along the inner circumferential wall of the combustion tube 1 is generated. The atomized fuel sprayed into the combustion tube 1 from the combustion chamber 1 is rapidly and evenly dispersed within the combustion tube 1 by this swirling wind.

Therefore, the ignition by the spark plug 23 is ensured, and the flame circulates well after ignition, and the raw combustion flame is stabilized in a very short time, so that an incomplete combustion state does not persist.
Since no soot is generated, the rotary vaporizer 6 is rapidly heated and the transition to vaporization combustion is promoted.

In addition, since a circulating air is constantly generated at the inner base of the combustion tube 1 at the same time as the burner is started, the combustion tube 1 is always subjected to a cooling effect even after the transition to vaporization combustion, and overheating and burnout are prevented.
Safety will be improved.

In addition, in other examples, the blowholes 20', 20',
Since a swirling wind is generated at the inner base of the combustion tube 1, it goes without saying that it has the same effect as that of the above embodiment.

In short, the present invention provides rotary vaporization in which fuel is atomized and dispersed in a combustion tube 1 with one end open and the base end closed, and a mixed gas is generated by evaporation of the fuel and mixing with forced air. A blowing chamber 10 for blowing forced air to the rotary vaporizer 6 is provided on the base end side of the combustion tube 1, and a blowing chamber 10 for blowing forced air to the rotary vaporizer 6 is connected to the base end side of the combustion tube 1. Since the air supply swirl guide path 18.18' is formed and the air supply swirl guide path 18.18' is communicated with the ventilation chamber 10, the atomized fuel sprayed from the rotary vaporizer 6 is By quickly and evenly distributing the flame to ensure ignition, it also improves the flame circulation after ignition, stabilizes the main combustion, promotes the transition to vaporization combustion, and improves the combustion tube after the transition to vaporization combustion. This has the effect of preventing one base from being overheated and burnt out, thereby improving safety.

[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 vertical side view, Fig. 2 is a front view of the main part, and Fig. 3 is a view of the other side. FIG. 4 is a longitudinal sectional side view with a portion cut away, and FIG. 4 is a front view of the main portion of the same. DESCRIPTION OF SYMBOLS 1... Combustion tube, 6... Rotating vaporizer, 10... Air blowing chamber, 18.18'... Air blowing rotation guideway.

Claims (1)

[Claims] 1. A rotary vaporizer is installed in a combustion cylinder with one end open and the base end closed, which atomizes and disperses fuel and generates a mixed gas by evaporating the fuel and mixing it with forced air. A blowing chamber for blowing forced air to the rotary vaporizer is connected to the base end of the cylinder, and the base end of the combustion cylinder has an air blowing swirl guide path for generating swirling wind in the part. 1. A vaporizing burner characterized in that the air supply swirling guide path is formed in the air supply chamber and the air supply swirling guide path is communicated with the air blowing chamber.