JPS5812001Y2 - ShinjiyougeshikiSekiyunenshiyouki - Google Patents

Description

[Detailed description of the invention] The present invention aims to provide a wick up-and-down oil combustor that can extinguish a fire in a short time when the wick is lowered.

In conventional oil burners with an upper and lower wick, the wick is lowered to the maximum extent possible to extinguish the fire, but in this case, the oil and gas remaining in the space at the upper end of the wick do not burn out quickly due to lack of air, and the upper opening does not burn out quickly. It burns little by little due to the inflow of air from the inside.

Therefore, with the conventional type, it took about 1 to 4 minutes to completely extinguish the wick after lowering the wick to its maximum extent, which resulted in the generation of a large amount of unburned gas during the extinguishing operation, which produced a strong odor. There was.

The present invention has been devised to eliminate the above-mentioned drawbacks and will be explained in detail below with reference to an embodiment shown in the drawings.

Incidentally, the same parts between the present invention and the conventional example are indicated by the same number.

1 is a core cylinder installed in the center of the oil tank 2,
An outer core cylinder 4 is attached to the outer peripheral wall of the inner core cylinder 1 via a core 3.

This wick 3 has its lower end penetrated into the oil tank 1 and sucks up fuel to the upper part, and is vertically slidable between the core inner cylinder 1 and the core outer cylinder 4.

Reference numeral 5 designates a plurality of air holes bored in the upper circumferential wall of the core outer cylinder 4, which are closed at the side wall of the core 3 when the core 3 moves upward, and are closed from the upper end of the core 3 when the core 3 descends to the maximum. It is formed to open upward.

Although the air hole 5 is shown as JJL in one embodiment, it is not limited to this and may be a slit hole.

Reference numeral 6 denotes a guide plate provided on the outer periphery of the core outer cylinder 4, and its lower end is open to form a flow passage 1 through which air passes.

Note that 8 indicates a burner placed on the upper end portions of the inner core cylinder 1 and the outer core cylinder 4.

Here, the operation of the present invention will be explained.

Now, when the wick 3 is moved up and ignited, the oil in the oil tank 2 is sucked up to the top of the wick 3, vaporizes there, mixes with the outside air, and burns.

When the core 3 is lowered to the maximum extent, the air hole 5 opens at the upper end of the core 3, so the cold outside air flows through the flow path 1 and the air hole 5 from the lower end opening of the guide plate 6. It rapidly flows through the gas to the upper end of the wick 3 where the temperature is high, and mixes with the residual gas accumulated at the upper end of the wick 3 to promote combustion.

In addition, the residual gas that was not burned is rapidly diluted by the air flowing in from the air hole 5 and the upper opening, and the inner core cylinder 1, outer core cylinder 4, and core 3 are rapidly cooled, so that the fire is extinguished. Time is reduced.

Incidentally, without the guide plate 6 of the present invention, when the wick 3 is lowered, the relatively dense residual gas that has accumulated at the upper end of the wick flows out through the air hole 5 and ignites, as shown in FIG. Core outer cylinder 4
burns on the side wall of the

The disadvantage is that it is difficult to extinguish the fire.

In contrast, as in the present invention, a guide plate 6 is provided to provide a flow path 7.
If this is formed, the speed at which the air flows in will be increased, and the residual gas will be less likely to flow back through the air hole 5, and even if it flows out from the air hole 5, its concentration will be dilute and the guide plate 6, so it won't catch fire.

As described above, the present invention has a plurality of air holes drilled in the peripheral wall of the core outer cylinder so as to be located above the upper end of the core when the core is lowered to the maximum, and outside air is directed to the outer periphery of the core outer cylinder through the air holes. This feature is characterized by the provision of a guide plate to form an air flow path leading to the core, so that the residual gas does not burn outside the core outer cylinder and the extinguishing time is also shortened. It has great practical value.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the main part of a conventional oil combustor, Fig. 2 is a longitudinal sectional view of the main part of the oil combustor of the present invention, and Fig. 3 is a half-cut view of the same as above.
FIG. 4 is a plan view of the same as above, and FIG. 5 is a partially enlarged view of FIG. 2 with the guide plate removed. 1... Core inner cylinder, 3... Core, 4...
... Core outer cylinder, 5 ... Air hole, 6 ... Guide plate, 7 ... Distribution path.

Claims (1)

[Scope of utility model registration request] In a core top-and-bottom type oil combustor in which a core is inserted between an outer core cylinder and an inner core cylinder so that the core can slide vertically, the peripheral wall of the core outer cylinder is positioned above the upper end of the core when it is lowered to its maximum. A top-and-bottom core type oil combustor, characterized in that a plurality of air holes are bored in the core outer cylinder, and a guide plate is provided on the outer periphery of the core outer cylinder to form an air flow passage for guiding outside air to the air holes.