JPS6038603B2 - vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention evaporates fuel from a raw combustion state at the time of ignition,
This invention relates to a vaporizing burner that mixes the evaporated vaporized gas with combustion air to form condensed gas for vaporization and combustion.

In a vaporizing burner that vaporizes and burns fuel such as kerosene, the fuel is dispersed into fine particles, evaporated and vaporized, and then mixed with combustion air supplied as forced air to form a mixed gas. However, in order to always maintain a good and stable vaporization combustion state, the evaporated vaporized gas of the fuel and the combustion air must be mixed evenly and sufficiently to form a homogeneous gas mixture. It is necessary to continue supplying

However, in the case of small-sized vaporizing burners, the rotary vaporizer that mixes the evaporated vaporized gas of fuel and the combustion air to form a mixed gas is large enough to produce a homogeneous mixed gas. Because it is difficult to attribute
The vaporizing combustion flame tends to be unstable, and furthermore, backfire phenomenon is likely to occur.

Furthermore, when adjusting the combustion amount, if the amount of fuel supplied is significantly increased or decreased from the standard amount, the mixture of evaporated fuel gas and combustion air will be uneven, resulting in similar problems. . In view of the above, the present invention forms a mixture gas chamber having a flame outlet on the base end side of the rotary vaporizer and on the outer circumferential side of the base end of the blower tube so as to rotate together with the rotary vaporizer. By drilling a moat gas distribution hole in the partition wall between the tsuruki passageway inside the body and the gait gas chamber, the hawk gas flowing from the mixture passageway in the rotary vaporizer to the mixture gas chamber can be passed through the partition wall between them. By increasing the inflow speed when passing through the hawk gas distribution holes provided in the fin frame and improving the fin frame mixing effect, even in a small vaporizing burner, a homogeneous mixed gas is always generated, resulting in good and stable gas flow. It is possible to ensure a vaporized combustion state, and the same effect can be achieved even if the combustion amount is increased or decreased. Because it rotates at high speed together with the rotating vaporizer,
An attempt has been made to provide a vaporizing burner that can immediately atomize and disperse it and burn it safely, without causing abnormal combustion flames to be mixed in, and furthermore, can prevent the generation of bad odors when extinguishing. DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to preferred embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a combustion tube with an open top end and a closed bottom surface, and an air supply chamber 2 is provided at the bottom side of the combustion tube 1.

3 is a rotary vaporizer, and the rotary vaporizer 3 has a closed upper end and a bulge portion 4 whose central portion bulges outward;
It has a cylindrical shape with its base end open, and is fixed to the tip of a rotating shaft 5 inserted into the center of the combustion cylinder 1 from the air supply chamber 2 side so as to cover the rotating shaft 5.

An annular fuel diffusion plate 6 is fixed to the upper end portion of the rotary vaporizer 3 with a fuel oil outflow gap 7 corresponding to the lower side of the circumferential wall of the upwardly bulging portion 4. On the top of the
The tip of the oil supply pipe 8 is exposed. 9 is a blower cylinder,
The blow tube 9 is located in the center of the rotary vaporizer 3, with its base end facing the air chamber 2 and its upper end facing the upper end of the rotary vaporizer 3. A flange-like partition 10 fixed to the rotary vaporizer 3 is attached to the base end side of the rotary vaporizer 3 with a fuel scattering gap 11 therebetween so as to rotate together with the rotary vaporizer 3.

The outer peripheral end of the working wall 10 is a fuel splashing end 10 bent upward.
a, and an air passage 12 is formed in the rotary vaporizer 3 between it and the outer periphery of the blower tube 9. 13 is a moisture gas chamber, and the steam gas chamber 13 is connected to the partition wall 10.
and a gas chamber wall cylinder 14 attached to the outer periphery of the base end of the blower tube 9 , the gas chamber wall cylinder 14 is formed between the base end side of the rotary vaporizer 3 and the outer side of the base end of the blower tube 9 . 15 is the opening of the gas chamber 13;
16 is a hot air passage formed between the gas chamber side wall tube 14 and the bottom surface of the combustion tube 1.

A partition wall between the air mixture passage 12 and the air mixture gas chamber 13 has a large number of holes 17 formed on the same circumference. 1
8 is a spark plug.

The one shown in FIG. 2 is another example of the above-mentioned embodiment, and has the same structure except that a porous flame row 5 is provided on the outer peripheral surface of the moat gas chamber 13. Next, the operation of the present invention will be explained.

If you start the burner now, the rotary vaporizer 3, blow tube 9, and mixture gas chamber 13 will be rotated at high speed, and combustion air will be forcedly blown from the air blow chamber 2 toward the combustion tube 1. Fuel oil is supplied onto the fuel diffusion plate 6 from the pipe 8 .

Therefore, the fuel is subjected to centrifugal force on the fuel diffusion plate 6 and is dispersed into the rotary vaporizer 3 from the fuel outflow gap 7 in the form of fine particles. When the fuel is scattered into the combustion tube 1 and ignited by the spark plug 18, a live combustion flame is generated within the combustion tube 1. When a raw combustion flame is generated in the combustion tube 1, the rotary vaporizer 3 is rapidly heated to a high temperature by the heat of combustion, so that the fuel that is subsequently supplied into the rotary vaporizer 3 is evaporated and vaporized. While flowing through the passage 12, it mixes with the combustion air blown from the blast tube 9 to become a dense gas, which flows into the mixed gas chamber 13 from the moat gas passage 17 of the partition wall 10 and is stored.
The moat gas stored in the mixed gas chamber 13 is transferred to the flame nozzle 15.
It is injected into the combustion tube 1 at a more constant pressure and vaporized and burned within the combustion tube 1. After the transition to vaporization combustion, the rotary vaporizer 3 continues to be heated to a high temperature by the combustion heat, so that the vaporization combustion state continues. By the way, in the process of the mixed gas flowing into the mixed gas chamber 13 from the mixed gas passage 12, the flow path is narrowed in the moisture gas passage 17 of the partition wall 10, so the flow velocity of the mixed gas increases here.

Therefore, the evaporated gas of the fuel and the combustion air are sufficiently mixed, so that a homogeneous mixture gas is formed and flows into the mixture gas chamber 13. Furthermore, since the suction gas flows into the humid gas chamber 13 through the overflow gas distribution hole 17 at high speed, backfire combustion can be prevented. Furthermore, since the partition wall 10 and the gas chamber pipe 14 forming the mixed gas chamber 13 rotate at high speed together with the rotary vaporizer 3, unvaporized fuel is generated in the mud passage 12 due to cooling liquefaction or some other cause. However, this fuel is immediately atomized and dispersed through the fuel scattering gap 11 under the action of centrifugal force, and is completely burned out.

Even if unvaporized fuel occurs in the air mixture gas chamber 13, it is atomized and rutted into the combustion tube 1 through the flame opening 15 due to the centrifugal force action on the gas chamber wall tube 14, so that it is immediately transferred to the aircraft. It can be burned out. Therefore, it is possible to prevent the abnormal combustion flame from being mixed into the vaporized combustion flame, and also to prevent the occurrence of a bad odor during extinguishing. In short, the present invention provides a cylindrical rotary vaporizer 3 with a closed top end and an open base end in a combustion tube 1, and a cylindrical rotary vaporizer 3 with a closed end and an open base end, and a cylindrical rotary vaporizer 3 with a cylindrical shape at the center of the rotary vaporizer 3 on the bottom side of the combustion tube 1. A blower tube 9 for blowing combustion air from the air chamber 2 to the upper end of the rotary vaporizer 3 is provided so as to rotate with the rotary vaporizer 3, and the blower tube 9 is connected to the base end of the rotary vaporizer 3. A moisture gas chamber 13 having a rotary flame row 5 is formed on the outer peripheral side of the base end so as to rotate integrally with the rotary vaporizer 3,
Since moisture gas flow holes 17 are bored in the partition wall 10' between the air mixture passage 12 and the air mixture gas chamber 13 formed between the rotary vaporizer 3 and the blower tube 9, the mud inside the rotary vaporizer 3 is removed. Passage 12
When the moat gas flowing into the lacrimal gas chamber 13 passes through the mixed gas distribution hole 17 provided in the partition wall 101 between them, the inflow speed is increased to improve the mixing effect of the pestle, and a small vaporizing burner is used. Even if the combustion amount is increased or decreased, it is possible to always generate a homogeneous mixed gas and ensure a good and stable vaporization combustion state. Even if unvaporized fuel occurs in the fuel tank 13, since the partition wall 10 and the mixed gas chamber 13 rotate together with the rotary vaporizer 3 at high speed, it can be immediately dispersed into atomized particles and completely burned. This has the effect of preventing the mixing of abnormal combustion flames and preventing the generation of bad odors during extinguishing.

[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 longitudinal sectional front view, and FIG. 2 is a partially cutaway longitudinal sectional front view of a pond. 1... Combustion cylinder, 2... Air blowing chamber, 3... Rotating vaporizer, 9... Air blowing tube, 10... Partition wall,
12...humidity passage, 13...humidity gas Aoi,
17...Mixture gas distribution hole. Figure 1 Figure 2

Claims (1)

[Claims] 1 A cylindrical rotary vaporizer whose upper end is closed and whose base end is open is provided in the combustion cylinder, and an air supply chamber connected to the bottom side of the combustion cylinder is supplied from the upper end of the rotary vaporizer at the center of the rotary vaporizer. A blower tube for blowing combustion air to the rotary vaporizer is installed so as to rotate together with the rotary vaporizer, and a mixture gas having a flame nozzle is provided on the base end side of the rotary vaporizer and on the outer circumferential side of the base end of the blower tube. A chamber is formed to rotate together with the rotary vaporizer, and a mixed gas flow hole is bored in a partition wall between the mixed gas passage and the mixed gas chamber formed between the rotary vaporizer and the blower tube. A vaporizing burner featuring: