JPS6040765B2 - 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 raw combustion state at the time of ignition, and mixes the evaporated vaporized gas with combustion air to form a mixed gas and evaporates and burns it. .

In a vaporizing burner, fuel oil such as kerosene is dispersed into fine particles in a vaporizing cylinder and evaporated, and mixed with combustion air supplied as forced air to form dense gas, which is then vaporized and burned. The hawk gas generated in the vaporization cylinder is stored in a gas chamber, and is then ejected from the flame hole at a constant pressure for vaporization and combustion.

Therefore, when the amount of fuel supply and air blowing are significantly reduced in order to reduce the amount of vaporized combustion using a vaporizing burner as described above, the moisture gas The amount of gas decreases extremely, and the fin pressure from the fin hole becomes unable to maintain the specified pressure.As a result, the speed and pressure of the lagoon gas blowing out from the hole decreases significantly, which causes the gas chamber to There is a risk of backfire development, which could ignite.
Therefore, in order to solve this problem, the present applicant arranged an opening/closing body that closes or closes some of the many flame holes drilled in the combustion plate so that it can be adjusted up and down in the gas chamber. Even when the amount of humid gas generated is extremely small, the underpressure in the gas chamber is maintained at a predetermined pressure to prevent flashback combustion.

However, even with the above-mentioned configuration, if the combustion disk is bent due to the heating action during the continuation of vaporization combustion, and the closing action of the gas nozzle hole becomes inaccurate, the moisture gas A small portion of the fuel leaked out from the opened false flame hole and was burned in the fume, resulting in the drawback that accurate weight loss combustion could not be maintained.

In view of the above, the present invention provides an auxiliary gas chamber having a gas passage communicating with the gas chamber near the wide-diameter side of the combustion plate in the gas chamber, and the gas passage is opened and closed by being adjusted up and down within the gas chamber. This is an attempt to provide a vaporizing burner that can be opened and closed by the human body to accurately control the increase and decrease combustion of mixed gas without causing gas leakage or backfire combustion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a vaporizing burner according to the invention will be described with reference to preferred embodiments shown in the accompanying drawings.

- In Figures 1 to 3, 1 is a bottomed cylindrical combustion tube with an open tip and a closed base end, and the bottomed side of the combustion tube 1 has many false flame holes on its surface. A combustion disk 2 with holes 3 is laid and installed to form a gas chamber 4 of an appropriate capacity between the combustion disk 2 and the combustion tube 1.

An air supply chamber 5 is adjacent to the bottomed side of the combustion tube 8, and the combustion tube 1 and the air supply chamber 5 communicate with each other through a vent hole 6. A closing portion 7 is provided in the center of the combustion plate 2 in correspondence with the vent 6 of the combustion tube 1.

Reference numeral 8 denotes a cylindrical vaporizer tube with a closed tip and an open base end. It is installed over the

10' is a blower tube, and the blower tube 10' is deeply inserted from the vent 6 of the combustion tube 1 toward the distal end side of the vaporizer tube 8, and is placed between the vaporizer tube 8 and the blower tube 10. Ni moake pilgrimage 11
is formed, and the moisture passage Kamegawa is connected to the gas chamber 4 through an opening 7 at the proximal end side.

A hollow inverted conical fuel diffuser 12 is fixed to the tip of the vaporizing tube 8 facing the tip end of the blower tube 0, and the tip of the fuel supply pipe frame 3 is fixed to the inner surface of the fuel diffuser 2. are closely opposed.

An annular anchor gas 14 with a moisture gas passage turtle 5 provided in the center is integrally attached to the end of the carburetor 8 on the open side so that a fuel scattering gap 16 is formed between it and the ascending end of the carburetor. At the same time, the fuel scattering tip 7' provided on the periphery of the gas mixture turtle 4 is bent into a broadside shape toward the open end side of the combustion tube i. The gas chamber 4 is located opposite the source gas umbrella attached to the open side of the carburetor tube 8, and the combustion plate 2 is recessed toward the bottomed side of the combustion tube tatami to connect the base end open side of the carburetor tube 8 and the gas chamber. 4, an annular humid gas dilution chamber 18 is formed between the two.

The rhombic end side of the mixture gas dilution chamber 8 is connected to the gas chamber 4, and the tip side is directed toward the open end side of the combustion tube 1 by the mud gas 14 and the warm air wall 19 stretched on the inner surface of the concave flame part. Close it diagonally upward. 2. One end of the river is the humid gas dilution chamber 1.
8 is a vent pipe consisting of a plurality of pipes with one end connected in the middle and the other end connected to the air supply chamber 5, and 21 is an ignition plug attached to the combustion tube near the nozzle hole 3.

In the gas chamber 4 formed as described above, the proximal end side of an auxiliary gas chamber 22, which has a gas passage 23 communicating with the gas chamber 4 on the free end side, is installed near the wide side of the combustion plate 2. .

In addition, since the base end side of the auxiliary gas chamber 22 is in an open state, a plurality of flame holes 3 drilled near the wide side of the combustion plate 2
is communicated with the auxiliary gas chamber 22. Further, the auxiliary gas chamber 22 is entirely formed into a ring shape. 24
is a ring-shaped opening/closing body for closing or opening the gas passage 23 of the auxiliary gas chamber 22 by moving up and down within the gas chamber 4; A packing 25 with a high contact effect is attached to the surface of the opening/closing body 24 that comes into contact with the surface of the auxiliary gas chamber 22.

The configuration for raising and lowering the opening/closing body 24 described above is the second one.
Details are shown in the figure.

That is, the free end side of the push-up pin 26 whose base end side is fixed to the ring-shaped opening/closing body 24 is made to penetrate into the air supply chamber 6 through the wall tube 27 for forming the air supply chamber horse. Inside the wall tube 26, a sliding ring body 3 is positioned, which is freely rotated left and right by a sliding rod 29 that can move along a long hole 28 provided in the wall tube 27. Three notches are provided in the super moving ring body 30 at the position where the super moving ring body 38 faces the slide ring body 38. The free end side of the push-up pin 26 is mounted on the push-up swash plate 32 by installing the push-up pin 26 diagonally, so that the opening/closing body 24 can be accurately adjusted up and down in accordance with the left-right rotation of the tank floor ring 30. Push-up pin 26
A plurality of push-up swash plates 32 are provided. In the embodiment shown in FIG. 4, a part of the combustion plate 2 located on the wide side has a rich-shaped rising wall 33 facing toward the open end side of the combustion tube 1.
is erected in an annular shape, and at the start of live combustion, the atomized fuel scattered from the fuel scattering gap electricity 6 collides with the rotating operation of the carburetor tube fin and becomes atomized, thereby promoting the start of combustion. Therefore, if the auxiliary gas chamber 22 is formed so as to be located outside of the rising wall 33, "unused oil that has been splattered at the start of raw combustion will drip into the auxiliary gas chamber 22,"
By being absorbed by the packing wag 25 attached to the surface of the opening/closing body 24, the absorbed fuel is evaporated and vaporized after transition to vaporization combustion, and this vaporized gas is transferred from the auxiliary gas chamber 22 to the false flame hole 3.
It is possible to reliably prevent red flame combustion in the combustion tube 1 by lowering the flame and maintain a blue flame state at all times.

Further, in the above embodiment, unburned oil generated at the start of raw combustion flows from the flame hole 3 of the combustion disk 2 inside the rising wall 33 toward the auxiliary gas chamber 22, and then drips into the packing 25 and is absorbed. Partition plate 3 for draining oil to prevent
4 is vertically disposed on the inner surface of the combustion disk 2 located inside the rising wall 33. In addition, the combustion disk portion of the auxiliary gas chamber 22 described above is configured in such a manner that the flame direction is directed diagonally toward the center (
(See the chain line in Figure 4). Next, the operation of the present invention will be explained.

In the embodiment shown in FIGS. 1 to 3, if the burner is started now, the carburetor 8 will rotate at high speed and the combustion air will be forced into the carburetor 8 from the air supply chamber 5. At the same time, part of the combustion air is forced into the air-fuel mixture dilution chamber 18 .

In this state, fuel is supplied from the fuel supply pipe 13 to the fuel diffuser 12.
When the fuel is supplied to the surface, the fuel is atomized by the fuel diffuser 12 and transferred to the inner surface of the vaporization tube 8, and while it is further transferred along the vaporization tube 8, it is atomized by the rotation of the vaporization tube 8 and the forced wind blowing action. After being further dispersed into fine particles, the fuel is dispersed into the combustion tube 1 through the fuel diffusion gap 6, and ignited from the ignition plugs 21 to generate raw combustion. When raw combustion occurs in this way, the combustion heat rapidly heats the vaporization tube 8 to a high temperature, so that the fuel that is scattered in the vaporization tube 8 is evaporated and vaporized, and then flows through the air mixture passage 11. During this time, it is mixed with the combustion air blown from the blower tube 10 to form a mixed gas, which is then transferred to the gas chamber 4 and the auxiliary gas chamber 2.
Air is stored within 2. and gas chamber 4 and auxiliary gas chamber 2
The humid gas stored in the chamber 2 is ejected at a constant pressure from a number of flame holes 3 into the combustion tube ridge, and when ignited, the amount is vaporized and burned, and a part of the generated mixed gas is also transferred to the steam gas dilution chamber 18.
The fuel enters the combustion chamber 1 and attempts to cause combustion inside the combustion tube 1 from the tip side. However, since combustion air is sent into the mixture gas dilution chamber 18 through the vent pipe 20 from the start of vaporization combustion, the mixture gas that has entered is mixed with this combustion air and is called "lean steam gas". Therefore, combustion node 1 is reached without being burned.
It is ejected and mixed with the previous vaporized combustion flame, and is then vaporized and burned. Therefore, during the continuation of vaporization combustion, the base end side of the vaporization tube 8 is prevented from being burnt out and deformed, and this allows normal rotational operation to continue good vaporization combustion. It is possible to completely eliminate flammable combustion. By the way, in the above-mentioned vaporization combustion state, when reducing the amount of vaporization combustion for the purpose of use, after reducing the amount of oil supplied from the oil supply pipe 13 and the amount of air blown from the air supply chamber 5, the sliding bar 29 is Rotate it clockwise in the state shown in Figure 2.

Then, the sliding ring body 30 and the push-up swash plate 32 are both rotated clockwise, and the push-up pin 26 mounted on the push-up swash plate 32 is raised, and the opening/closing body integrated with the push-up pin 26 is rotated clockwise. 24 horizontally and closes the gas passage 23 of the auxiliary gas chamber 22 with the packing 25 in an airtight manner to completely shut off the gas chamber 4 and the auxiliary gas chamber 22, and remove the small amount of moat gas generated from the gas chamber. Air is stored in the gas chamber 4, and warm air is combusted from a large number of fly holes 3 under a constant pressure to produce a small amount of vaporized combustion over a long period of time, while preventing reverse combustion or leaking combustion from the auxiliary gas chamber 22. Can be carried out. In short, the present invention provides the combustion plate 2 with a large number of flame holes 3 perforated in the combustion tube 1 as described above, forms the gas chamber 4 between the combustion tube 1 and the combustion disk 2, and Inside, the proximal open side is the gas chamber 4.
Even if a vaporizing cylinder 8 is rotatably provided and the generated mixed gas is warmed and combusted under a constant pressure state through a number of counterfeit holes 3, the gas chamber 4 is An auxiliary gas chamber 22 having a gas passage 23 communicating with the gas chamber 4 is disposed near the wide-diameter side of the combustion plate 2, and the gas passage 23
Since the interior of the gas chamber 4 is opened and closed by the opening/closing body 24 which is adjusted up and down, when the opening/closing body 24 is lowered to bring the auxiliary gas chamber 22 into communication with the gas chamber 4 via the gas passage 23, all It is rumored that the gas chamber 22 is closed by the gas chamber 4 and the opening/closing body 24 by raising the opening/closing body 24 to generate a small amount of mixed gas. under a constant pressure condition without causing backfire combustion.
The auxiliary gas chamber 22 is placed in the combustion plate 2 on the wide side, perhaps because it can easily achieve a more nuisance weight loss vaporization combustion.
Moreover, since it is located within the gas chamber 4, even if the combustion plate 2 is slightly deformed due to combustion heat during use, it will be accurately closed by the lifting adjustment operation of the opening/closing body 24, preventing gas moats. In addition to being able to reliably eliminate the occurrence of red-flame combustion, the amount of vaporized combustion can be easily adjusted.

[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 longitudinal sectional front view, and FIG. 2 is a partially cutaway enlarged perspective view of the lifting and lowering adjustment mechanism of the opening/closing body. FIG. 3 is a partially cut-away longitudinal sectional front view of a state where the combustion amount is reduced, and FIG. 4 is a partially cut-away longitudinal sectional view of another example. 1... Combustion tube, 2... Combustion plate, 3...
Fin flame hole, 4... gas chamber, 5... air supply chamber, 8... vaporization tube, 22... auxiliary gas chamber, 2
3...Gas passage, 24...Opening/closing body. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 A combustion plate with a large number of flame holes perforated in the combustion cylinder is provided to form a gas chamber between the combustion cylinder and the combustion plate, and a vaporization cylinder whose base end open side communicates with the gas chamber is provided in the combustion cylinder. In the gas chamber, an auxiliary gas chamber having a gas passage communicating with the gas chamber is disposed near the wide end of the combustion plate, and the gas passage is adjusted up and down within the gas chamber. A vaporizing burner characterized in that it is opened and closed by an opening and closing body.