JPH0120495Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a wick type oil burning device such as a portable oil stove.

Structure of conventional example and its problems As shown in FIG. 1, a conventional wick-type oil combustion device, for example, a portable kerosene stove, has a wick 3 that sucks up fuel 2 from a tank 1 and vaporizes it, and a wick 3.
inner and outer flame tubes 4 and 5 that hold the inner and outer tubes movably up and down; inner and outer flame tubes 6 and 7 having a plurality of air holes placed on the upper end of the inner and outer flame tubes 4 and 5; It consists of an outer cylinder 8 disposed to cover the inner and outer flame cylinders 6 and 7. Then, when the lamp wick 3 is ignited with an igniter (not shown) with it facing between the inner and outer flame tubes 6 and 7, the heat gradually increases vaporization and starts combustion.
Combustion is mainly carried out in multiple pores of the inner and outer flame tubes 6 and 7, and the heat of the pore combustion is fed back to the wick 3, which vaporizes the fuel 2 and maintains the amount of vaporization according to the vaporization combustion. to sustain combustion. If combustion is continued for a long time under such conditions, or the fuel 2
If the fuel 2 contains impurities or if the fuel 2 itself has deteriorated in quality, tar will gradually begin to form on the surface of the wick 3 if combustion is performed even for a short time. As this progresses, the tar shown in A accumulates, causing the upper part of the wick 3 to stick to the fire pan, causing a knotting phenomenon in which the wick 3 cannot be moved down, making the appliance unable to extinguish the fire and becoming unusable. It was hot.

Purpose of the invention The present invention was created in view of the above-mentioned problems, and aims to reduce tar generation and prevent the necking phenomenon in wick-type oil combustion equipment. .

Structure of the Invention In order to achieve the above object, the present invention has been developed so that when the tip of the wick is raised between the inner and outer flame cylinders, the inner and outer surfaces of the wick near the above-mentioned fire pan are suppressed from vaporizing. A evaporation suppressing plate is installed on the inside.

DESCRIPTION OF EMBODIMENTS One embodiment will be described below with reference to FIG.
In the second part, 1 is a fuel tank, in which fuel 2 is sucked up by capillary action in a cylindrical wick 3. The lamp wick 3 is held between an inner wick inner tube and an outer tube 4, 5, which are vertically provided in the tank 1, and is movable up and down. Inner and outer flame tubes 6 and 7 having a plurality of pores are mounted on the upper end of the fire pan of the inner and outer core tubes 4.
Reference numeral 8 denotes an outer cylinder disposed to cover the inner and outer flame cylinders 6 and 7, and the inner and outer flame cylinders 6 and 7 form a burner section. 9 and 10 are heat-resistant evaporation suppressing plates attached to the inner and outer surfaces of the lamp wick 3, and the upper part of the lamp wick 3 is
When raised between the outer flame tubes 6 and 7, the inner core and outer tube 4,
It is set so as to protrude above the fire pan part 5.

In the above configuration, the igniter (not shown) is installed with the upper part of the wick 3 protruding between the inner and outer flame tubes 6 and 7.
When ignited, the heat begins to vaporize, gradually increases, and then combustion begins. Combustion is mainly carried out in the plurality of pores of the inner and outer flame tubes 6 and 7, and the heat generated by the pore combustion is fed back to the wick 3 impregnated with fuel 2, and the fuel 2 is absorbed from the surface of the wick 3. It vaporizes and continues combustion by maintaining the amount of vaporization according to the pore combustion.

If combustion continues for a long time in such a state, or if fuel 2 contains impurities or if fuel 2
If the lamp itself has deteriorated, tar will gradually begin to form on the surface of the lamp wick 3. However, since this tar is generated on the surface of the lamp wick 3 above the evaporation suppressing plates 9 and 10, a situation where the fire pans of the inner and outer cylinders 4 and 5 and the lamp wick 3 are connected by the tar does not occur. Therefore, the necking phenomenon in which the lamp wick 3 cannot move up and down can be reduced.

Generally, during combustion, the vaporizing surface of the lamp wick 3 becomes hot, and the fuel 2 contained in the lamp wick 3 on the surface that is in contact with the air is easily oxidized and becomes tar. Due to the presence of , the vaporization surface of the lamp wick 3 that comes into contact with the air is reduced, and oxidation of the fuel 2 can be reduced, that is, tar formation can be reduced.

In this embodiment, the vaporization suppressing plates 9 and 10 are made of heat-resistant plates, but the same effect can be obtained even if an impermeable, heat-resistant paint is applied to the surface of the lamp wick 3.

Effects of the invention As described above, according to the invention, it is possible to reduce the sagging phenomenon caused by tar, which is the inability to raise and lower the lead, and also to reduce the generation of tar, which has great practical value.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a conventional wick-type oil combustion device, and FIG. 2 is a sectional view of a wick-type oil combustion device in an embodiment of the present invention. 3... Light wick, 4... Core inner tube, 5... Core outer tube, 6... Inner flame tube, 7... Outer flame tube, 8... Outer tube, 9... Vaporization suppressing plate.

Claims (1)

[Scope of utility model registration request] A lamp wick that sucks up fuel from the tank and vaporizes it; an inner and outer cylinder that holds the lamp so that it can move up and down; and an inner and outer cylinder that has a plurality of air holes placed on the upper end of the inner and outer cylinder. It consists of a flame tube and an outer tube arranged to cover the inner and outer flame tubes, and evaporation suppressing plates are provided on the inner and outer surfaces of the wick, and the upper part of this evaporation suppressing plate is lower than the fire pan when the wick is raised. A wick type oil burning device located above.