JPH0138427Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a liquid fuel combustor such as a kerosene stove.

Conventional structure and its problems In general, this type of combustor, as shown in Figs. It has an oil tank (not shown) and a combustion cylinder 6. The oil tank stores oil and is equipped with a wick (not shown) for sucking up and burning the oil, and a wick up/down mechanism 7 for moving the wick up and down.

Then, at the bottom of the top plate 2 facing the combustion tube 6,
A dish-shaped heat shield plate 8 with an upper portion closed and a lower portion open is provided on the top plate 2 with screws or the like.

Now, during normal combustion, the hot air coming out of the top of the combustion tube 6 hits the top of the heat shield plate 8, flows as shown by the arrow in the figure, hits the bottom of the top plate 2, or hits the bottom of the top plate 2, or blows into the top of the top plate 2. Discharge from the hole. At that time, the top plate is thermally deformed as shown in Figure 3. This phenomenon is particularly significant in large combustors for high calorie use. In order to reduce this deformation, enlarging the hole 10 in the top plate 2 is limited by the structural strength of the case body.
If the distance between the combustion tube 6 and the top plate 2 is increased, the size of the main body will increase and the cost will increase. In addition, in the case of the above configuration, the rising flame (the rising flame phenomenon that occurs when the wick is raised to a higher position after burning with the wick lowered) is also a rising flame like a high-calorie combustion tube. If the amount is large, it is large and therefore cannot be received by the heat shield plate 8 and the hole 1 of the top plate 2
There was a problem where the light passed through 0 and went out of the device.

Purpose of the invention This invention was created in view of the above points, and is an attempt to prevent thermal deformation of the top plate due to the hot air and standing flames of the combustion tube, as well as to prevent the returning flames from exiting the appliance. It is.

Structure of the invention In order to achieve the above object, the present invention has a heat shield plate provided on the lower surface of the top plate facing the combustion tube, which is sloped upward in the front so that hot air from the combustion tube is discharged to the front of the opening of the main body. A flame shield piece is installed in the front of the hot plate to diffuse the standing flame from the combustion tube to the front of the top plate and prevent the flame from escaping outside the appliance.

DESCRIPTION OF THE EMBODIMENTS An example of the embodiment will be described below with reference to FIGS. The main body 1 has an opening, a combustion tube 6 provided in the main body, and a heat shield plate 51 provided on the lower surface of a top plate 50 facing the combustion tube 6 of the main body 1. It is formed into a substantially U-shaped cross section with a heat shielding piece 52 at the front part, and is arranged in an inclined manner so that the opening side of the main body 1 is located at the top. Opposite flame shielding piece 5
3 is provided.

Furthermore, this flame shielding piece 53 is provided with a plurality of through holes 54 .

Further, the top plate 50 of the main body 1 has a chamber 55 having a substantially U-shaped cross section at the front end, and the heat shield plate 51 has a protrusion 57 having an opening 56 at the front end. are attached with screws or the like so as to close the openings on both sides of the chamber 55 of the top plate 50.

In the above configuration, during normal combustion, the hot air coming out of the combustion tube 6 hits the upper part of the heat shield plate 51 and is inclined so that the opening side of the main body 1 is located at the upper part, so that it easily flows forward. The top plate 5 passes through the through hole 54 of the flame shield piece 53 provided on the heat shield plate 51.
0 into a room 55 having a substantially U-shaped cross section.

Therefore, as shown in FIG. 3, the amount of hot air that passes over the heat shielding pieces 52 on both sides of the heat shield plate 51 and hits the center of the top plate 50 is reduced, and the deformation of the top plate 50 is also reduced.

Further, the returning flame also tends to flow forward of the top plate 50, but is blocked by the flame shielding piece 52 of the heat shielding plate 51 described above, and the through hole 5 of the flame shielding piece 52
3 and are guided to a chamber 55 having a substantially U-shaped cross section at the front end of the top plate 50, making it difficult for flames to come out from the front upper part of the main body 1.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, it is possible to prevent the top plate from being thermally deformed, and it is also possible to prevent the flames from coming out of the appliance and causing a flame.

In particular, a downward facing flame shield piece is installed in the front part of the heat shield plate.
A plurality of through holes are formed in this flame shielding piece, and a room with a roughly U-shaped cross section is provided at the front end of the top plate, so that the flame shielding piece partially blocks out the returning flames and prevents the flames flowing forward. By finely dispersing the flame through the through holes and catching the dispersed flame in the chamber at the front end of the top plate, it is possible to reliably prevent the flame from flowing out of the appliance.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional kerosene stove;
Fig. 2 is a cross-sectional view of the same, Fig. 3 is a partial cross-sectional view of the main parts thereof, Fig. 4 is a cross-sectional view of an oil stove according to an embodiment of the present invention, and Fig. 5 is a perspective view of the heat shield plate. . 1...Main body, 6...Combustion tube, 50...Top plate, 5
DESCRIPTION OF SYMBOLS 1... Heat shield plate, 52... Heat shield piece, 53... Flame shield piece, 54... Through hole, 55... Room with approximately U-shaped cross section, 56... Opening, 57... Protruding piece.

Claims (1)

[Scope of utility model registration request] It comprises a main body with an open front, a combustion tube provided inside the main body, and a heat shield plate provided on the lower surface of the top plate facing the combustion tube of the main body, and the heat shield plate has heat shield pieces on both sides. The heat shield plate has a substantially U-shaped cross section and is arranged in an inclined manner so that the opening side of the main body is located at the top, and a downward flame shield piece is provided at the front of the heat shield plate. The liquid fuel combustor has a plurality of through holes formed therein, and the top plate of the main body has a room having a substantially U-shaped cross section at the front end thereof, so that the front end of the heat shield plate is exposed.