JPH01107006A - Liquid fuel burner - Google Patents

Abstract

PURPOSE:To prevent the reduction in fuel evaporation from a wick or oil deposition into a pot burner for a long time by burning fuel residue or fixing substances on the surface of a wick when fire is extinguished. CONSTITUTION:The fuel supplied to a wick 4 by way of a fuel pipe 2 is distributed to a cylinder-shaped wick 4a under passing through almost all the surfaces of the wick 4. Then, it is pre-heated by an ignition heater 7, evaporated and ignited. When the regular burning is obtained, even if an attempt is made to switch off the heater 7, the evaporation of the fuel continues under the influence of a radiation heat from a combustion stabilizing device 9 or combustion flames. A large number of holes 13 provided around a wick holding base 3 and the wick 4 are adapted to work as flame holes in proportion to the reduction in the fuel evaporated by the wick 4 during extinction and burn all the fuel on the surfaces of the wick 4, thereby eliminating the fuel residue built up around the wick 4 or fixing substances on the wick holding base 3 or a bottom 6.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a liquid fuel combustor in which a wick is provided at the bottom of a horizontal bottomed pot burner to vaporize and burn fuel.

2. Description of the Related Art A conventional liquid fuel combustor of this type in which a wick is provided at the bottom of a horizontal bottomed pot burner is shown in FIG.

In the figure, the wick 4 is a flat disk made of a heat-resistant layer of porous material and is held by a wick holder 3 placed at a distance from the bottom 6 of the pot burner 1. . Reference numeral 2 denotes an oil pipe that sends fuel to the lamp wick 4. A joint 10 between the wick holder 3 and the bottom 6 is removable, and the wick holder 3, the bottom 6, and the side wall 5 form a front space 11. The side wall 5 is a peripheral wall of the pot burner 1 and has a large number of air holes 8 for supplying air for combustion. 7 is an igniter that preheats, vaporizes, and adds fuel in the wick 4; 9 is an igniter that improves the mixing of combustion gas in the pot burner 1, receives combustion heat, becomes high temperature, radiates radiant heat, heats the wick 4, and adds fuel It is a combustion stabilizer that sustains the vaporization of

(For example, Japanese Unexamined Patent Publication No. 59-60109) Problems to be Solved by the Invention In the conventional liquid fuel combustor, due to long-term use or repeated ignition and extinguishing many times, the sustained temperature of the lamp wick 4 during use In the lipocytoburner 1, unvaporized fuel residue accumulates in the lamp wick 4 and gradually stops vaporizing, and the fuel vapor stagnant in the upstream space 11 changes in quality and sticks to the wick holder 3 and bottom 6, making combustion impossible. There was a problem in that oil pools formed inside.

Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and the wick holder is provided with a large number of holes approximately equally spaced to correspond to the holes in the wick holder. A through hole is provided at the position where the

Function: In the present invention, the numerous holes provided almost evenly on the wick holder and the wick act like flame holes as the fuel vaporized in the wick decreases when extinguishing the wick, burning it on the surface of the wick and removing the fuel accumulated in the wick. It has the effect of burning away the residue and stuck objects on the wick holder and bottom.

Embodiment FIG. 1 is a sectional view showing an embodiment of the liquid fuel combustor of the present invention, and FIG. 2 is a sectional view of the wick portion of the same.

In the figure, reference numeral 1 denotes a horizontal bottomed pot burner having air holes in the side wall, and is composed of a fuel pipe 2, a wick holder 3, a wick 4, a side wall 5, a bottom 6, and the like. 7 is an ignition heater provided in the side wall, 8 is an air hole drilled in the side wall, 9
is a combustion stabilizer provided in the pot burner 1. The joint 10 between the wick holder 3 and the bottom 6 is removable.

Reference numeral 11 denotes a front space formed by the wick holder 3, the bottom part 6, and the side wall 5, and 12 is a space in close contact with the side wall 5 that approximately corresponds to the outer periphery of the wick 4, and its cross section with the wick holder side open is approximately U. It is a shaped fuel reservoir with a ring-shaped partition plate 1 on the side facing the bottom 6.
It is set as 2a. Reference numeral 8a indicates an appropriate number of air holes provided in the bottom portion 6. 4a is a cylindrical lamp wick provided on the outer periphery of the lamp wick 4;
Reference numeral 13 denotes a large number of holes provided almost equally in the lamp holder 3, and reference numeral 14 denotes a through hole provided in the position of the lamp wick 4 corresponding to the reader tag 13.

The operation of this embodiment having the above configuration will be explained below.

The fuel supplied to the lamp wick 4 through the fuel pipe 2 passes through almost the entire surface of the lamp wick 4, is distributed to the cylindrical lamp wick 4a, and is heated by the ignition heater 7.
Combustion air supplied by a combustion blower (not shown) is preheated, evaporated and ignited at air holes 8 and 8a.
The fuel enters the pot burner 1, mixes with fuel vapor, and burns. Once the lamp wick 4 and the cylindrical lamp wick 4a begin to absorb combustion heat, even if the heating of the ignition heater 5 is stopped, fuel evaporation continues due to the radiant heat from the heated combustion stabilizer 9 and the combustion flame, resulting in steady combustion. becomes.

The combustion air that enters the upstream space 11 from the air hole 8a provided in the bottom part 6 is guided by the partition plate 12a and pushes out the fuel vapor in the upstream space 11, so that it is well distributed around the cylindrical lamp wick 4a. The mixture accelerates the combustion reaction and forms a flame. Note that when the air holes 8a are provided on the side wall 5 between the bottom portion 6 and the partition plate 12a, the same effect as when the air holes 8a are provided on the bottom portion 6 is obtained. Due to a malfunction of the ignition heater 7, the lamp wick 4
If the burner is not preheated, the liquid fuel that is not vaporized and drips from the wick 4 is retained in the fuel reservoir 12 and does not leak out from the air hole 8 in the side wall 5 of the burner.゛Multiple holes 1 are provided almost equally on the wick holder 3 and the wick 4.
3 acts like a flame hole as the fuel vaporized in the wick 4 decreases when extinguishing, burning it on the surface of the wick 4 and eliminating fuel residue accumulated on the wick 4 and stuck objects on the wick holder 3 and bottom 6. do.

Effects of the Invention In the present invention, a large number of holes are provided almost equally in the wick holder, and through holes are provided in the wick at positions corresponding to the holes in the wick holder, so that fuel residue, wick holders, etc. This prevents debris from accumulating at the bottom, which has the effect of reducing vaporization of fuel from the wick over the long term and preventing oil from pooling inside the bot burner.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a liquid fuel combustor showing an embodiment of the present invention, FIG. 2 is a sectional view of the wick portion of the same, and FIG. 3 is a sectional view of a conventional liquid fuel combustor. 1... Pot burner, 3... Light wick holding stand, 4...
Light wick, 8... air hole, 13... hole,
14...Through hole.

Claims (1)

[Claims] A horizontal bottomed pot burner (1) with a number of air holes (8) on the side wall has a removable wick holder (3) at the bottom, and a fuel supply is connected to the tip of the wick holder (3). In a liquid fuel combustor equipped with a flat lamp wick (4) for receiving vaporization, a large number of holes (1
3), and a through hole (14) is provided at a position corresponding to the hole (13) of the lamp wick (4).