JPS6021618Y2 - vaporizing burner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a vaporizing burner that vaporizes and burns liquid fuel (mainly kerosene) using combustion heat.

As this type of vaporizing burner, one having a structure as shown in FIG. 1 is known.

A vaporizing burner with this structure has a vaporizing cylinder 1 that is open at one end.
and a gas chamber 2 in communication with the gas chamber 2. A rotating shaft 11 rotated by a motor causes the vaporization cylinder 1 and a fuel diffusion body 12 installed therein to rotate at high speed, and a fuel diffusion body rotated by a fuel supply pipe 3. Fuel (kerosene or other liquid fuel) is injected into the vaporizer cylinder 12, diffused into the vaporizer cylinder, and adhered to the inner wall 13 of the vaporizer cylinder in the form of a thin film, which is then formed on the open end 14 of the vaporizer cylinder 1 by centrifugal force. sprayed into the combustion chamber 4 from the gap 15,
It is ignited by the discharge spark of the igniter, causing live combustion, and this raw combustion heats the vaporizer cylinder 1, vaporizes the fuel supplied in the vaporizer cylinder (thin film form and adheres to the inner wall of the vaporizer cylinder), and blows the fuel from the blower cylinder 5. It is mixed with the primary air that is being sent, forms an air-fuel mixture, and is forced out into the gas chamber 2, and is injected into the combustion chamber 4 from the nozzle hole 21 of the gas chamber 2, where it is ignited by a raw combustion flame and continues combustion. It has become.

However, in a vaporizing burner with such a configuration,
Since the air-fuel mixture raw in the vaporization cylinder is forced out to the gas chamber for continued combustion, a part of the air-fuel mixture passes through the scattering gap 15 at the open end of the vaporization cylinder in the process of being forced out to the gas chamber.
and the combustion chamber 4 from the gap 22 between the carburetor cylinder and the open end of the gas chamber.
There is a risk that the fuel may leak into the gas, burn in the gaps, and back into the vaporization cylinder or gas chamber, resulting in abnormal combustion.

Furthermore, since primary air is forced into the vaporization cylinder, the vaporization cylinder tends to be cooled by this air flow, which has the drawback of adversely affecting the vaporization effect.

Therefore, the object of this invention is to correct the above-mentioned drawbacks of the conventional structure and provide a vaporizing burner that is safe and has stable performance that does not cause incomplete combustion or abnormal combustion.

Next, this invention will be explained in detail with reference to illustrated embodiments.

The vaporizing burner according to the embodiment of this invention is equipped with a vaporizing cylinder 1, a gas chamber 2, etc., like the conventional structure described above, and the same parts as those of the conventional structure are given the same reference numerals. The explanation will be omitted.

Thus, the combustion action in the illustrated embodiment is such that the fuel diffuser 12 rotates as the vaporizer cylinder 1 rotates, thereby diffusing the fuel into the vaporizer cylinder, spraying the fuel in a liquid phase into the combustion chamber, and causing live combustion. This structure is similar to the conventional structure, but differs from the conventional structure in that primary air is not directly blown into the vaporization tube 1, and therefore the blowing tube is not exposed to the inside of the vaporization tube 1.

The primary air necessary for combustion is supplied to the bottom 23 of the gas chamber 2.
Air is blown into the gas chamber through the air gap 24 provided in the gas chamber, and is mixed with the fuel vaporized in the vaporization cylinder heated by raw combustion in the gas chamber, forming an air-fuel mixture that flows from the nozzle hole 21 of the gas chamber 2 to the combustion chamber 4. Fumes are emitted and combusts.

The above-mentioned ventilation gap 24 is integrally provided with a guide wall 25 so that the primary air flows directionally from the bottom 23 of the gas chamber 2 toward the inside of the gas chamber 2, and is provided in an endless ring shape on the bottom 23. Alternatively, a plurality of them may be provided intermittently.

The gas chamber 2 and the ventilation chamber 5 communicate with each other via the ventilation gap 24, and the ventilation chamber 5 communicates with the ventilation fan through the ventilation port 51.
have.

As mentioned above, according to this invention, there is a gap for blowing air from the bottom of the gas chamber communicating with the gas chamber toward the inside of the gas chamber, so primary air is not directly supplied to the vaporization tube. , so there is no raw mixture in the vaporizer cylinder,
Abnormal combustion in which part of the air-fuel mixture leaks into the combustion chamber through the gap between the ends of the carburetor cylinder and gas chamber and back burns does not occur at all, and the carburetor cylinder is easily cooled by the inflow of primary air. By not blowing air into the carburetor cylinder in this state, the carburetor cylinder is not cooled, thereby promoting the vaporization action, and making it possible to obtain a safe carburetor burner that performs normal combustion.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a conventional structure, and FIG. 2 is a partially cutaway side view showing an embodiment of this invention. 1... Carburizer cylinder, 2... Gas chamber, 24.
......Air gap.

Claims (1)

[Scope of utility model registration request] A vaporizing burner characterized by having a vaporizing cylinder open at one end, a gas chamber disposed around the vaporizing cylinder and communicating with the vaporizing cylinder, and a ventilation gap extending from the bottom of the gas chamber toward the inside of the gas chamber.