JPS6014251B2 - vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a rotary vaporizer with a closed tip and an open base end in a combustion cylinder, supplies fuel and forced air into the rotary vaporizer, and generates a mixed gas. This invention relates to a vaporizing burner that performs vaporizing combustion.

Previously, the present applicant provided a rotary vaporizer with a closed end and an open base end in a combustion cylinder, and a gas chamber that was compatible with the base side of the rotary vaporizer, and supplied fuel and forced air into the rotary vaporizer. We have developed a vaporization burner that vaporizes and burns the supermixed gas by storing it in a gas chamber and ejecting it into a combustion cylinder at a constant pressure.By implementing this, we can convert liquid fuel into the same way as gaseous fuel. It has shown considerable effects, such as being able to burn efficiently and completely.

By the way, in the above-mentioned vaporizing burner, since the base end side of the rotary vaporizer is connected to the gas chamber directly or through a lotus passage, the air mixture passage in the rotary vaporizer is relatively short. Therefore, there are disadvantages such as uneven mixing of dense gas, that is, a mixture of fuel evaporation gas and forced wind, and that the vaporization combustion flame may not be stable.

In view of the above, the present invention divides the space between the inner circumferential surface of a rotary vaporizer and the outer circumferential surface of a blower tube interposed in the center of the rotary vaporizer into two into two, into an inner and outer part, and first stops the air mixture chamber on the outside thereof. A fixed partition wall is provided to form a gas chamber between the base end of the rotary vaporizer and the bottom of the combustion tube. By forming a mixed gas vent at the interface with the gas chamber installed in the rotary vaporizer, the vaporized gas generated in the rotary vaporizer stays in the humidity chamber for a long time and mixes with the circulating forced air. At the same time, the mixed gas generated in the moat chamber is forced to flow into the small-diameter gas chamber inside the moat chamber through the moisture gas vent, thereby creating a concentration effect on the entire mixed gas and forcing it into the mound. The present invention is intended to provide a vaporizing burner capable of homogenizing the mixed gas and stabilizing the vaporizing combustion flame. A preferred embodiment will be described.

In Fig. 1, reference numeral 1 denotes a combustion tube with an open top end and a closed bottom. A ventilation chamber 2 is provided at the bottom of the combustion tube 1, and is inserted into the combustion tube 1 from the ventilation chamber 2 side. A cylindrical rotary vaporizer 4 having a closed tip and an open base end is attached to the tip of the rotating shaft 3 so as to cover the rotating shaft 3.

The central portion of the tip of the rotary vaporizer 4 is bulged outward and a fuel oil diffusion convex portion 5 is integrally formed therein, and below the fuel diffusion convex portion 5 is an inner surface of the rotary gasifier 4 An annular fuel diffusion tray 7 is provided to rotate integrally with the rotary vaporizer 4, with a fuel distribution gap 6 between the two. A fuel supply pipe 8 is piped into the fuel oil diffusion convex portion 5 from the ventilation chamber 2 side, and the tip of the concession oil supply pipe 8 is placed close to and opposed to the inner surface of the fuel diffusion convex portion 5. 9 is a blower tube, and the blower tube 9
A gas chamber bottom wall 10 is integrally extended in the outer circumferential direction from the base end of the gas chamber bottom wall 10, and support pins 12, 12,・
By fixing with ..., the base end side of the blower tube 9 is fixed in the shape of a funnel with a slight gap in the blower chamber 2, and the tip of the blower tube 9 is fixed to the fuel oil diffusion convex part 5. It is facing a position near .

In addition, inside the rotary vaporizer 4, the space between the inner circumferential surface and the outer circumferential surface of the blower tube 9 is divided into two parts, inside and outside, and the crane air chamber 13, which is fixed on the outside, is opened from the inside of the rotary vaporizer 4. A fixed partition wall 15 that forms a gas chamber 14 with the gas chamber bottom wall 10 is provided between the base end side of the rotary vaporizer 4 and the bottom of the combustion tube 1. The horizontal end portion of the rotating gap 16 is integrally attached to the upper end of the blower tube 9, with a rotation gap 16 being maintained between the two. And the fixed partition wall 1
Circular air mixture gas ventilation rows 7, 17, . It is formed. The base end side of the rotary vaporizer 4 is a fuel scattering end 18 which is curved outwardly and expanded, and an annular groove is formed between the fuel scattering end 18 and the upper edge of the peripheral wall of the gas chamber bottom wall 10. A false flame opening 19 is formed. Note that the mixed gas vent 17 of the partition wall 15
, 17... may be circular or may be circumferential grooves 17a (Fig. 2), and air-fuel mixture gas ventilation rows 7, 17...
・It is also possible to make it porous by covering it with wire mesh 20, etc. (Fig. 3)
. 21 is a spark plug.

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

Now, when starting the burner, if the rotary vaporizer 4 is rotated at high speed, forced air is blown into the rotary vaporizer 4 from the blower chamber 2 through the blower tube 9, and fuel is supplied from the oil supply pipe 8. The fuel sent out from the tip of the fuel supply pipe 8 flows through the fuel diffusion convex portion 5
The fuel oil is once received on the upper surface of the fuel diffusion tray 7 within the fuel diffusion tray 7, and is subjected to a far D force on the surface of the fuel diffusion tray 7, and the fuel of the rotary vaporization body 4 is caused to flow through the fuel gap 6 between it and the inner surface of the rotary vaporization body 4. It is evenly diffused completely along the inner surface, passes through the rotation gap 16, and is scattered into the combustion tube 1 from the flame nozzle 19.

If the spark plug 21 is used to ignite the flame, raw combustion will quickly occur within the combustion tube 1. When live combustion occurs in the combustion tube 1, the combustion flame rapidly heats the rotary vaporizer 4 to the evaporation temperature of the fuel. The evaporated gas is evaporated and a mixture of the evaporated gas and the forced air is formed in the drafting chamber 13, and the mixture gas is passed through the passing gas ventilation rows 7, 17, .
The gas flows into the inner gas chamber 14 through . By the way, the humidity gas generated in the humidity chamber 13 in the rotary vaporizer 4 is
Since the air mixture flows into the small-diameter gas chamber 14 from the passing gas vents 17, 17, . The condition is made uniform, and the edge gas is made homogenized. Therefore, the vaporizing combustion flame is always in a stable state. In addition, as shown in FIG. 3, when the mixed gas vents 17, 17... are made porous by covering the wire mesh 20, the passing gas vents 17, 1
7... Due to the ventilation resistance, a swirl flow is generated and the aeration effect is further promoted. In short, the present invention provides a rotary vaporizer 4 with a closed end and an open base end in a combustion tube 1, and a blower with a base end disposed at the bottom of the combustion tube 1 in the center of the rotary vaporizer 4. A blower tube 9 is provided which communicates with the chamber 2 and whose tip faces the tip inside the rotary vaporizer 4, and divides the space between the inner circumferential surface of the rotary vaporizer 4 and the outer circumferential surface of the blower tube 9 into two parts: inside and outside. A fixed partition wall 15 is provided to form a gas chamber 14 between the base end side of the rotary vaporizer 4 and the bottom of the combustion cylinder 1 from the inside of the air mixture chamber 13, which is previously stopped on the outside thereof. Since the mixed gas ventilation rows 7, 17, etc. are formed at the interface between the tip side of the mixed air chamber 13 partitioned by the wall 15 and the gas chamber arranged inside the purging chamber, the rotary vaporizer The vaporized gas generated in the air mixture chamber 1 is allowed to remain in the moat air chamber 13 for as long as possible to interact with the forced wind.
By forcing the mixed gas generated inside 3 into the gas chamber 14, which has a small diameter, through the moisture gas vent 17, the mixed gas is concentrated and forced. This has the effect of stabilizing the vaporized combustion flame by homogenizing the mixed gas.

[Brief explanation of the drawing]

The drawings show an embodiment of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway vertical sectional front view, and FIGS. 2 and 3 each show other embodiments - a partially cutaway vertical sectional view. It is a front view. 1... combustion tube, 2... ventilation chamber, 4...
・・Rotating vaporizer, 9・・Blower tube, 13・・・・
...Mixture chamber, 14...Gas chamber, 15...
・Fixed partition wall, 17... Moat gas vent. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 A rotary vaporizer whose tip end is closed and a base end is open is provided in the combustion tube, and the base end communicates with a blowing chamber connected to the bottom side of the combustion tube in the center of the rotary vaporizer body, and the tip is rotated. A blower tube facing the tip inside the vaporizer is provided, and the space between the inner circumferential surface of the rotary vaporizer and the outer circumferential surface of the blower tube is divided into two (inside and outside), and an air-fuel mixture chamber, which is stopped on the outside, is installed inside the vaporizer. A fixed partition wall is provided between the base end of the rotary vaporizer and the bottom of the combustion cylinder to form a gas chamber, and a fixed partition wall is provided between the base end of the rotary vaporizer and the bottom of the combustion cylinder, and a fixed partition wall is provided on the tip side of the air mixture chamber partitioned by the fixed partition wall and on the inside of the air mixture chamber. A vaporizing burner characterized by having an air-mixture gas vent formed at the interface with a gas chamber.