JPH0216093Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a kerosene vaporizing burner that vaporizes liquid fuel and continuously burns it under a constant pressure state.

<Prior Art> An example of a conventional kerosene vaporizing burner is shown in FIG.

In the figure, reference numeral 1 denotes an outer cylinder, which separates a gas chamber 4 with a predetermined gap between them, and is closely attached at its upper end to an inner cylinder 2 having a large number of flame holes 3 on its surface.

12 is a motor that connects the diffuser 1 via a rotating shaft 14.
1 and the vaporizer tube 5, and the air sucked in from the lower hole 20 by the fan 13 passes from the blower tube 10 through the vaporizer tube 5 and into the gas chamber 4 as shown by the arrow in the figure.
send it inside. The air in the gas chamber 4 is vigorously blown into the inner cylinder through the flame hole 3 of the inner cylinder 2.

In addition, 6 is an annular vaporization cylinder receiver, 15 is an oil pipe, 1
6 is a fan case, and 17 is a burner board.

To illustrate the combustion process, first, the fuel sent from the oil pipe 15 hits the rotating diffuser 11 and is transmitted downward through the inner surface of the vaporizing tube 5 which has a flared tail due to the blowing air and centrifugal force. The fuel scatters into the inner cylinder 2 through the combustion scattering gap 7 between the cylinder support 6, is ignited by an ignition device (not shown), and then raw combustion occurs within the inner cylinder 2, causing the oil to be sent from the oil pipe 15. The fuel that collides with the diffuser 11 rotating at high speed and diffuses is vaporized in the vaporization tube 5 and sent into the gas chamber 4 along with forced air. At this time, since the gases are stirred and mixed in the narrowed portion of the gas passage 9, a complete mixture of gases is stored and maintained in the gas chamber 4 at a constant pressure. Thereafter, this mixed gas is combusted in the inner cylinder 2 through the flame hole 3 and the connection opening 8.

<Problems to be solved by the invention> In the above-mentioned kerosene vaporizing burner, in the early stage of combustion, the fuel forms fine particles from the fuel scattering gap 7 between the vaporizing cylinder 5 and the vaporizing cylinder receiver 6, and is sprayed to the bottom of the inner cylinder 2. , When igniting and burning raw all at once, the combustion sound often pulsates loudly.
When this type of burner is installed in a boiler or the like, there are disadvantages in that the pulsation of combustion noise is amplified in the combustion chamber and that it induces vibrations in the boiler exterior plate.

<Means for Solving the Problems> In order to solve the above-mentioned drawbacks, the present invention has attached a combustion amount adjusting plate such as a perforated plate or a lath plate to the bottom of the inner cylinder.

<Function> The combustion amount adjustment plate attached to the bottom of the inner cylinder prevents part of the fuel from scattering from the fuel scattering gap between the carburetor cylinder and the carburetor cylinder holder to the inner cylinder, thereby eliminating the scattered fuel all at once. Since it prevents raw combustion and pulsation of the combustion sound, a stable and ideal initial combustion state can be obtained.

<Example> Hereinafter, the present invention will be explained in detail with reference to the illustrated example.

Fig. 1 shows a cross-sectional view of the main parts of a kerosene burner equipped with the combustion amount adjustment plate of the present invention, in which 1 is an outer cylinder, 2 is an inner cylinder, 6 is an annular vaporizer cylinder receiver, and 18 is a combustion cylinder. The amount adjustment plate is shown. Reference numerals 5 and 11 indicate a vaporizing cylinder and a diffuser that are rotated by a motor (not shown). At the time of startup, fuel sent from the oil supply pipe 15 to the surface of the diffuser 11 is transmitted along the inner wall of the vaporizing cylinder 5 due to centrifugal force, and the fuel is scattered at the lower end. The fuel is sprayed in fine particles from the gap 7 into the inner cylinder 2. At this time, an annular combustion amount adjusting plate 18 attached to the lower part of the inner cylinder 2 and having many small holes on its surface absorbs a portion of the scattered fuel. This prevents the scattered fuel from burning all at once.

The subsequent combustion of the mixed gas is exactly the same as that described in the prior art section.

In this example, a combustion amount adjusting plate with a large number of small holes on the surface is shown, but since it is sufficient to block part of the scattered fuel, a plate with a lathed surface or a plate with a lathed surface as shown in FIG. 4 may be used. Of course, it is also possible to divide the annular body into a large number of parts as shown in FIG.

<Effects of the invention> Evaporative burners have become widely popular because they are advantageous in terms of high combustion efficiency and complete combustion, but they require a preheating preparatory operation for stable vaporizing combustion. The above-mentioned kerosene vaporizing burner does not require any special mechanism or operation for preheating, and performs preparatory operations through raw combustion at the initial stage of startup, which is rational. However, this invention overcomes the drawbacks of this type of vaporizing burner by simply attaching a combustion amount adjustment plate to the bottom of the inner cylinder, making it possible to stabilize the initial combustion and improve the reliability of the device. It has excellent effects.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the essential parts of the kerosene vaporizing burner of the present invention, Fig. 2 is a sectional view of a conventional example, Fig. 3 is a perspective view of an embodiment of the combustion amount adjusting plate of the present invention, and Fig. 4 is a sectional view of a main part of the kerosene vaporizing burner of the present invention. It is a perspective view which shows another Example same as the above. 1... Outer cylinder, 2... Inner cylinder, 3... Flame hole, 4...
Gas chamber, 5... vaporizer cylinder, 6... vaporizer cylinder receiver, 7...
... Fuel scattering gap, 11 ... Diffusion body, 13 ... Fan, 15 ... Oil feed pipe, 18 ... Combustion amount adjustment plate.

Claims (1)

[Claims for Utility Model Registration] 1. Combustion in which an upwardly expanding, generally cylindrical inner cylinder with a large number of flame holes on its surface is brought into close contact with an outer cylinder at its upper end, and a gas chamber is formed between the outer cylinder and the outer cylinder. A rotating shaft is inserted into the center of the cylinder, a diffuser is integrally connected and fixed to the upper part of the rotating shaft, and a vaporizing cylinder with an open bottom is attached to cover the diffuser, and the vaporizing cylinder and the lower part of the vaporizing cylinder are attached. In a kerosene vaporizing burner in which a fuel scattering gap for ignition is formed between an annular vaporizing cylinder support and an annular vaporizing cylinder support, an annular combustion amount adjusting plate is provided at the bottom of the inner cylinder on the outer periphery of the fuel scattering gap, and the fuel at the time of ignition is A kerosene vaporizing burner characterized by restricting the scattering of. 2. The kerosene vaporizing burner according to claim 1, wherein the combustion amount adjusting plate is a perforated plate. 3. The kerosene vaporizing burner according to claim 1, wherein the combustion amount adjusting plate is a lath plate.