JPS6119378Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is designed to discharge combustion exhaust gas from a combustion tube installed in a combustion chamber with a front opening through an exhaust gas hole opened in the ceiling wall above the combustion tube. Regarding the kerosene stove.

(b) Conventional technology When a conventional stove catches fire, the flame comes out directly from the exhaust gas hole in the stove top.
There were many burns and fire accidents.

For this reason, Japanese Utility Model Publication No. 55-14969 proposes a technique in which a flame-blocking ring is provided on the ceiling to bend the tip of the flame downward and prevent it from reaching the exhaust hole in the top plate.

(c) Problems that the invention aims to solve However, according to the above-mentioned Japanese Utility Model Publication No. 14969/1983, when combustion becomes stable, a layer of combustion flame is formed inside the flame shield ring, the pressure increases, and the following burning flame,
The combustion exhaust gas was not able to enter the flame shield ring, but instead ran directly into the exhaust hole in the top plate, which was dangerous.

In view of this, the present invention aims to provide a kerosene stove that eliminates the danger of fire even in a stable combustion state and can be used with peace of mind.

(d) Means for solving the problem The present invention is a kerosene stove in which combustion exhaust gas is discharged from a combustion tube installed in a combustion chamber with a front opening, through an exhaust gas hole made in the ceiling wall above the combustion tube. A heat shielding cylindrical body is attached to the lower surface of the ceiling wall directly above the combustion cylinder, and a gap is provided between the cylindrical body and the ceiling wall through which part of the combustion exhaust gas in the cylindrical body flows out. Out.

(E) Embodiment Below, an embodiment of the present invention will be explained based on the drawings. 1 is a kerosene stove body with a box-shaped exterior, and inside the upper part there are a horizontal reflecting plate 2, a vertical opposite plate 3, and a main body. A combustion chamber 5 with a front opening is constituted by a top plate 4. 6 is the main body 1 below the combustion chamber 5
This is a fuel supply section consisting of an oil tank 7 installed inside, and is equipped with a combustion wick, which is moved up and down by a vertical operation knob 8 to supply fuel. 9
is a fuel cylinder consisting of a triple cylinder placed on the twist supply part 6 and protruding into the combustion chamber 5 from the opening of the horizontal reflector 2, and receiving the twist supply from the core. Exhaust gas is being discharged. Reference numeral 10 designates an ear piece 1 with a gap on the inner surface of the top plate 4 of the main body 1 located directly above the combustion tube 9.
0' is attached by spot welding, and a suitable number of L-shaped locking claws 10a are integrally formed on the lower surface of the outer periphery. In this way, the ceiling plate 4 and the heat shield plate 10 form the ceiling wall of the stove. 1
1 is a heat shielding cylinder with open upper and lower ends, in which a locking claw 10a of a heat shield plate is inserted into a notch provided in an upper end collar piece 11', and then rotated to detachably attach the collar piece 11' to the locking claw 10a. A gap G is provided between the upper end of the cylindrical body and the heat shield plate 110 so that the air flow entering the cylindrical body 11 from below the cylindrical plate 11 escapes through the gap G, that is, the cylindrical body 11
has a draft effect.

Therefore, the combustion tube 9 is shifted in position and the fuel supply section 6
If the wick is placed on the cylinder or if the wick is lowered instantly when the fire is extinguished, the flame will rise from the top of the combustion tube 9, but a portion of it will enter the cylinder 11 as shown by the arrow and collide with the heat shield plate 10. The flame is sulfurized from the gap G, but most of it is inverted and flows out from the lower part of the cylinder 11. At this time, the flow velocity of the flame flow is reduced, and mixing with the surrounding air is promoted. That is, since there is a gap G, combustion flame and combustion exhaust gas continue to easily enter into the cylindrical body 11, and the top plate 4
No flame escapes from the exhaust gas hole provided in the

(f) Effects of the invention As described above, with this invention, the flame does not flow out from the exhaust gas hole installed in the ceiling wall like in the past, and the combustion is completed by the time it exits the main body, so there is no danger like in the past. There isn't. In addition, since the flow velocity of the flame stream is reduced, the residence time of the flame stream within the stove body is increased, and mixing with combustion air is improved, so the length of the standing flame is shortened, and there is no danger of fire.

Furthermore, in the present invention, since a gap is formed between the heat shielding cylinder and the ceiling wall, the drafting effect of the cylinder is promoted, and the subsequent combustion flame is actively prevented from increasing the pressure inside the cylinder. Since it is introduced into the heat shielding cylinder and then turned over, the length of the standing flame becomes even shorter, making it safe to use even during stable combustion.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the kerosene stove of the present invention, and FIG. 2 is an enlarged sectional view of the main parts. 5... Combustion chamber, 9... Combustion tube, 10... Heat shield plate, 11... Heat shield cylinder, G... Gap.

Claims (1)

[Scope of utility model registration request] In a kerosene stove in which combustion exhaust gas is discharged from a combustion tube installed in a combustion chamber with a front opening through an exhaust gas hole opened in the ceiling wall above the combustion tube, a shield is installed on the lower surface of the ceiling wall directly above the combustion tube. A kerosene stove characterized in that a thermal cylindrical body is attached, and a gap is provided between the cylindrical body and the ceiling wall through which part of the combustion exhaust gas inside the cylindrical body flows out.