JPS58123007A - Wick - Google Patents

Abstract

PURPOSE:To speed up the propagation of flame by a method in which the shuttling movement of fuel between the main wick and an auxiliary wick is interrupted by a partition material, the lower end of the auxiliary wick is immersed in fuel only when the fire is put out, and the tip of the auxiliary wick is projected by a specific length upwardly from the tip of the main wick. CONSTITUTION:A wick consists of a main wick 1 and an auxiliary wick 2, and the main wick 1 consists of the vaporizing portion 3 and sucking portion 4 of liquid fuel. Then, two partition materials 5 and 6 are also provided in such a way that the auxiliary wick 2 is positioned on the inner surface of the partition material 5, its lower end is position above the fuel level L1-L1' during the burning period but immersed in fuel when the wick is lowered and fire is put out, and its upper end is projected upwardly from the tip of the vaporizing portion 3. Also, the vaporizing portion 3 is provided along the peripheral face of the partition material 6 and the partition materials 5 and 6 detachably provided. Furthermore, the tip of the auxiliary wick 2 is projected by 1-5mm. upwardly from the tip of the vaporizing portion 3 of the main wick. By this, the generation of soot, offensive odor, and CO after the ignition can be lessened.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a so-called suction vaporization type combustor that sucks up liquid fuel by capillary action and vaporizes and burns the liquid fuel from the surface of the fuel vaporization section exposed in the vaporization chamber. .

In this type of combustor, the fuel vaporization section of the wick is exposed to a high temperature and oxygen-containing atmosphere, so a portion of the fuel contained in the vaporization section becomes a tar-like substance through oxidation 9 polymerization, etc. The phenomenon of accumulation in the vaporizer occurred. Conventionally used lamp wicks have a vaporizing part woven from a blended yarn mainly made of glass fibers or flame-resistant fibers, and the wick is woven into a part of the tip of the wick or a part of the attached auxiliary wick by means of an ignition heater, etc. It is what ignites the fire. In this type of wick, the part that fires quickly at the beginning is constantly supplied with kerosene (the fuel is always vaporized even during steady combustion). Therefore, over time, tar-like substances accumulate in the fire pit, obstructing the supply of fuel to the fire pit, increasing heat capacity, and significantly slowing down the fire. A large amount of soot, odor, and carbon monoxide were generated. In even more extreme cases, ignition and fire-fighting may become impossible.

The present invention solves the above-mentioned drawbacks of the conventional lamps, and aims to provide a lamp wick that always burns quickly and generates less soot, odor, and carbon monoxide after ignition.

In order to achieve this object, the present invention provides an isolation material between the master and the auxiliary wick attached to the master in order to block the flow of fuel between the two, and the lower end of the auxiliary wick is connected to the fuel during combustion. The auxiliary wick is positioned above the fuel surface and immersed below the fuel surface only when extinguishing a fire, and the tip of the auxiliary wick protrudes from the tip of the master vaporizer, with a height of 1 ff or more and 6 ff or less.

With this configuration, no fuel is supplied to the auxiliary wick during combustion, so the fuel burns out in a short period of time after ignition and general turning, resulting in a dry firing state. Therefore, there is almost no accumulation of tar-like substances on the auxiliary wick, and the fire can always be heated quickly. In addition, by setting the protruding height of the auxiliary wick to IMM or more, the large rotation can be carried out quickly, and by setting it to 5MM or less, the odor, soot, and - due to the sudden rise of the flame can be reduced.
Suppresses the generation of carbon oxide.

An embodiment of the present invention will be described below with reference to the drawings. In Figure 1, 1 is the master and 2 is the auxiliary core. 3 is the master vaporization section, which is made by bonding silica-alumina ceramic fibers (silica:alumina Φ50:50) with a binder.

Reference numeral 4 denotes a suction section connected below the vaporizing section 3, which is made of a braided thread made of cotton, cotton, polypropylene, or the like.

Reference numeral 5 denotes an isolating material, which in this embodiment is made of a 0.2 t stainless steel plate, which also serves as a fixture for fixing the lamp wick. The auxiliary wick 2 is attached to the inner peripheral surface of the isolator 5, and its lower end is located above the fuel level (broken line, -L,') during combustion, and when the wick is lowered to extinguish the fire, the fuel It is configured so that it is immersed in the fuel (when extinguishing a fire, it is immersed below the fuel liquid level to the position indicated by the broken line L2-L2'), and its upper end projects upward from the tip of the vaporizer 3. In addition, a wicking part 4 is attached to the lower outer circumferential surface of the isolating material. Reference numeral 6 denotes an isolating material B, and the vaporizing section 3 is attached to the outer circumferential surface of this isolating material B6.The isolating material 5 and the isolating material B6 can be attached and detached by bayonet connection, etc., and the vaporizing section 3 is attached above the suction section 4. It is connected. 7 is a fixing tape.

In the above configuration, first, by using a paper-like flat plate made of silica-alumina ceramic fiber in the vaporization section 3, the oil content in the vaporization section 3 is increased.
The durability against bad kerosene etc. is greatly improved. This is traditional fiberglass.

In a lamp wick made of braided yarn such as flame-resistant fiber, the fiber diameter is large and the capillary tube is also relatively large, so the amount of fuel contained at the tip of the vaporizer is small, and tar-like substances are likely to be generated. While the combustion rate deteriorated early, the one in this example was made by cutting short ceramic fibers into a paper shape and bonding them with a binder, and the capillary tubes were fine. This is because because the fuel is large and uniform, a large amount of fuel is contained even at the tip, and the generation of tar-like substances is suppressed.

Next, the auxiliary wick 2 has a structure in which its lower end is positioned on the fuel surface during combustion, and is immersed in fuel only when extinguishing, and is completely isolated from the master 1 by the retractable material 5. Therefore, when extinguishing a fire, fuel is sucked up into both the master 1 and the auxiliary wick 2, but the master 1 sucks up the fuel for vaporization, and the auxiliary wick 2 sucks up the fuel necessary for ignition and general turning completely independently.

During combustion, fuel is always sucked up into the master 1, but since there is no new supply of fuel to the auxiliary wick 2, ignition,
Once the fuel contained in the auxiliary wick 2 has completely vaporized after the full rotation, it becomes a so-called dry firing state where there is no fuel, so there is almost no accumulation of tar-like substances and it is possible to maintain the initial fire characteristics. can. In this embodiment, the tip of the auxiliary wick 2 is made to protrude above the tip of the main wick, and the height of this protrusion greatly affects the combustion characteristics. Figure 2 shows the change in combustion amount when the protruding height of the auxiliary wick 2 is changed to 7 mm, 5118.3811.1 Ml1 (curves a, b, c, and ri in order) (when steady combustion is taken as 100%) When the protrusion height is 71nl, excessive combustion is observed as seen in curve a.This is because as the protrusion height increases, the amount of fuel contained in the tip of the auxiliary wick 2 increases. Therefore, after ignition, a large flame is formed above the auxiliary wick 2, causing a rapid temperature rise and an increase in the amount of fuel vaporized, which attempts to rapidly increase the amount of combustion. (Drawing omitted) The upper part is still in a low temperature state and acts in the direction of suppressing the combustion reaction, which increases odor, soot, and carbon oxide.In this example, the protrusion height is 5 mm or less. No excessive combustion was observed.

FIG. 3 shows the change in the carbon monoxide peak value at the time of ignition depending on the protruding height of the auxiliary wick, which increases as the auxiliary wick protruding height increases. However, this value is just a peak value, and since the time for -carbon oxide to be generated is extremely short, it is considered that there is no problem in practical use if it is around es o o ppm. Further, in this example, soot generation (shaded area in FIG. 3) was observed when the protruding height of the auxiliary core was 6 ff or more. When the protrusion height is 1 fl or less, the peak value of carbon monoxide is low, but since carbon monoxide is generated at a relatively high level for a long time, the total amount generated increases, which is rather inconvenient. FIG. 4 shows the change in the round-trip time depending on the protrusion height of the auxiliary lead. When the protrusion height is 1M11 or more, the fire is completed within about 10 seconds, but when the protrusion height is 1M or less, it takes a considerable amount of time. This is because the flame formed at the top of the auxiliary wick after ignition is small due to the small protrusion height, and it is not possible to raise the temperature sufficiently in the circumferential direction of the auxiliary wick and increase the amount of fuel vaporized. Therefore the odor during this time.

- A large amount of carbon oxide is generated, which is disadvantageous. From the above results, in order to suppress the generation of odors, soot, carbon oxides, etc. after ignition, it is necessary to quickly circulate the flame around the entire wick after ignition, and to reduce the amount of fuel contained in the auxiliary wick 2. At the same time, it is necessary to promote fuel vaporization from the vaporization section 3, suppress excessive combustion during this time, and gradually transition to stable combustion in a form close to complete combustion.To do this, the protruding height of the auxiliary wick 2 must be 1 f.
A value of f or more and 6 fl or less is appropriate.

Furthermore, in this embodiment, the vaporizing part 3 and the suction part 4 are connected detachably, so that they can be replaced very easily, and the effect is very great. Although it has been possible to improve the durability against defective kerosene by using a ceramic fiber paper-like flat plate for the clamp and vaporizing section 3, it is impossible to make it completely free of tar. Unfortunately, deterioration is an unavoidable fact. However, this deterioration occurs only in the vaporizing section 3, and the suction section 4 hardly deteriorates. Therefore, in this embodiment, consideration has been given to allowing only this portion to be removed and replaced when the vaporizing section 3 deteriorates.

As described above, according to the present invention, the flow of fuel between the auxiliary wick and the main body is blocked by the isolating material, and the lower end of the auxiliary wick is positioned above the fuel surface during combustion, and is immersed in the fuel only when extinguishing. In addition, by setting the protrusion height of the auxiliary wick tip above the main wick tip to 1n or more and 5n or less, the amount of soot, odor, and carbon monoxide generated after ignition can be reduced over a long period of time.
You can get a safe and comfortable wick.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part of a lamp wick according to an embodiment of the present invention;
FIG. 2, FIG. 3, and FIG. 4 are characteristic diagrams showing the effects of the lamp wick according to an embodiment of the present invention. 2... Auxiliary core, 3... Vaporizing part, 5.6
・・・・・・Separator + B O Name of agent Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 phantom, Higo Matsuritsu 11'1ffi't1~) Figure 3 Sukeishi Tsudo High 8□.

Claims (3)

[Claims] (1) A main body consisting of a suction part for sucking up liquid fuel and a vaporizing part connected above the suction part, an auxiliary wick attached to this main part, and a passage of fuel provided between the main part and the auxiliary wick. The lower end of the auxiliary wick is located above the fuel surface during combustion, and is immersed below the fuel surface when extinguishing. 61EI protruding wick. (2) The lamp wick according to claim 1, wherein the main window vaporizing section and the suction section are detachably connected. (3) The lamp wick according to claims 1 and 2, wherein a paper-like flat plate made of heat-resistant short fibers of ceramic, glass, etc. is used for the entire or at least part of the main window vaporizing section.