JPS59210206A - Liquid fuel burning equipment - Google Patents

Abstract

PURPOSE:To prevent tarry substance from developing by a structure wherein a flat plate-shape wick is made by bonding fine ceramic fibers or particles with flexible organic binder. CONSTITUTION:A combustion part 3 consists in sewing flat plate-shape wicks 1, which are made of ceramic fibers bonded with flexible organic binder, and a flame spreading wick 2, which is mainly made of glass fibers, by piling the latter between the formers by means of a sewing machine. Further, the combustion part 3 and a sucking-up part 4 are joined together by sewing with their ends butting against each other. The combustion part 3 and the sucking-up part 4 are held through a tape 6, on the outside surface of which adhesive is coated and which is fixed by claws 7 shaved upright from a stainless steel cylindrical supporter 5, onto the cylindrical supporter 5. Because the wick 1 made of ceramic fibers is employed on the combustion part 3, the amount of oil borne by the part 3 is plenty, resulting in lowering the temperature of the part 3 and consequently making the development of tar difficult. Furthermore, even if tar is developed, the tar is diffused in the plenty amount of the oil, resulting in eliminating the bad influence of the tar.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lamp wick for a liquid fuel combustion device, and its purpose is to prevent the generation of tar-like substances due to defective fuel, thereby preventing poor combustion.

Currently, the wicks of liquid fuel combustion devices such as kerosene stoves have an upper part made of woven cloth mainly made of glass fiber, and a lower part (the second part) made of woven cloth made mainly of cotton or cotton fiber. Almost. The biggest problem with the longevity of liquid fuel combustion devices that use such wicks is that tar-like substances form on the wicks, making it impossible to move the wick up and down or causing deterioration in combustion (no longer burning). Most often, the fuel is oxidized and easily turns into tar (altered). In addition, for example, when white kerosene is used as a regular fuel, the above-mentioned problems also occur when different oils such as salad oil or light oil are mixed in with it, or when the boiling point of the fuel itself varies.

In addition, the current fuel for kerosene stoves is called white kerosene.
ISI kerosene is used, but the recent oil situation has been deteriorating, and there is a possibility that JISI kerosene will also have a problem with its supply.As a countermeasure, the boiling point of the fuel will be raised, that is, it will be made heavier. There is a need for a wick that does not generate tar even if kerosene deteriorates or mixes with different types of oil.

ing.

In view of this situation, the present invention provides a lamp wick that can prevent the heavy fuel t1 and the formation of tar even when using bad fuel.One embodiment of the present invention will be described below.

A closer look at the process of tar production reveals that increasing the amount of oil in the burning part of the wick lowers the temperature of the wick, making it less likely that tar will form, and the tar that is produced will be softer and will diffuse into the rich oil. As a result, the lamp wick is hardly affected by tar, and its lifespan is extended.

Even in the case of the glass fiber-based lamp wicks that are currently in practical use, it is possible to obtain a significant effect by increasing the oil content in the burning part and by minimizing the distance from the oil surface to the burning part. Although it is possible, it is not preferable because the smaller the distance from the oil surface to the combustion part, the greater the risk of fire, etc.

Furthermore, since glass fiber itself is relatively thick at 6 to 9 μm, no matter how you weave it or make it into non-woven fabric, it is impossible to increase the oil content. However, the heat resistance of glass is low at 400°C, and if it is thinned too thin, it will melt immediately, so from this point of view it is not ideal for cutting.

Ceramic fibers were the focus of attention. Ceramic fiber, which is made up of approximately equal parts alumina (A1203) and silica (SiO2), has a melting point of 13.
The temperature is very high at 00°C, so there is no need to worry about melting even if the fibers are thin and have a diameter of 2 to 3 μm.

However, since it cannot be made into long fibers and is somewhat brittle, it is quite difficult to use it as thread, and it is currently difficult to use it as a woven fabric for lamp wicks. Therefore, we investigated the use of a binder to harden ``suita'' using a method similar to the method used to make washi paper, and as a result, we were able to obtain a very good outdoor lamp wick.

FIGS. 1 and 2 show an embodiment of the present invention, in which 5° foam and 1 are flat lamp wicks made of ceramic fibers hardened with a flexible organic binder.

Number 2 is a fire wick made of woven fabric mainly made of glass fiber, which is used to speed up the fire during ignition.
The burning part 3 is formed by overlapping the lamp wick 1 and sewing it together with a sewing machine. It should be noted that heat resistance can be improved by blending ceramic fibers into the spinning core 2 (ceramic fibers can be relatively easily used as yarn if blended with other fibers). 4 is the wicking part, the upper part is made of cotton/Nuf blended yarn, and the part below it that is immersed in the fuel is made of knitted fabric using polypropylene fiber yarn, which is a synthetic fiber with lipophilic and hydrophobic properties.

This is to ensure that even if water gets mixed into the fuel, only the fuel will be sucked up and not the water, and the water-repellent effect will be maintained semi-permanently.

Moreover, the combustion part 3 and the suction part 4 are joined by sewing with their ends abutted against each other.

Then, the combustion part 3 and suction parts 6 and 7 4 sewn as described above are held on the stainless steel cylindrical supporter 5 via a tape 6 coated with adhesive on the outer surface, and the tape 6 is cut from the cylindrical supporter 6. It is fixed with raised claws 7.

In addition, in Fig. 1, 8 is the inner cylinder, 9 is the bugaku inner cylinder, 1
0 is a combustion tube, 11 is a fire pan, and 12 is a tank.

In the configuration described in -I-, since the toecap 1 made of ceramic fiber is used in the combustion part 3 of this embodiment, the oil content in this part is increased. For this reason, the temperature of the lamp wick 1 is low, which makes it difficult for tar to be generated, and even if tar is generated, it is soft and will diffuse into the abundant oil, so tar will not have any adverse effects on the lamp wick 1. It disappears.

Figure 3 shows kerosene mixed with 0.1% salad oil and burned, and the A line uses a conventional glass wick from the oil level to the fire pan 11'! 1. If the distance at is 125, then B
If the line uses the same glass core and the distance from the oil level to the grate 11 is BOMM, then line C is the product according to the present invention and the distance from the oil level to the grate 11 is APP.

The case of the 125th edition is shown in C. As is clear from this c6+3, in the example product of the present invention, the amount of combustion is not significantly reduced by tar.

The most important thing in the above structure is that a flexible organic binder, such as vinyl acetate resin, is used as the rotating binder.

In other words, since the inorganic binder has no flexibility, it cannot be processed into a cylindrical shape or the like, and even if it were made in that way, it would be unable to be sewn to the wicking part 4. On the other hand, since organic binders are highly flexible, they can be easily formed into a cylindrical shape, and can be easily and reliably sewn to the wicking section 4.

Note that when the combustion part 3 is roasted, some of the organic binder is burned away, but this does not pose a problem in terms of strength during use. Although the cause is currently not clearly confirmed,
In the combustion section 3 which has once sucked up the fuel, the organic binder and the fuel itself remain slightly as a polymer compound during dry firing. This is also thought to be due to the fact that the temperature itself during dry cooking is not high enough to completely burn out the organic binder. The amount of the crushed organic binder is 5.For example, if vinyl acetate/V expanded fat is used, if the weight is less than 3% of the weight of the wick 1, the strength of the wick 1 will be too poor to withstand use. If the amount exceeds 15%, the vinyl acetate fat itself tends to turn into a tar-like substance, resulting in a large amount of tar being produced and the wick 1 having poor suction performance. Note that even when organic binders other than vinyl acetate fat were used, there was no significant difference in their content.

If the organic binder contains elements such as sulfur, nitrogen, or chlorine, their combustion products will easily corrode metals and may give off a bad odor. , an organic binder consisting of carbon and oxygen is ideal.

As described above, according to the present invention, various kinds of leaks due to tar do not occur, and furthermore, the distance lII'41 <'9 can be removed from the oil surface, resulting in high safety.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a liquid fuel combustion device according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the main part of the same liquid fuel combustion device, and FIG. 3 is a cross-sectional view of the same liquid fuel combustion device and a conventional example. It is a graph comparing the deterioration state of combustion amount. 1...Light wick, 3...Combustion part. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 9 Figure 3 Fuel: Boundary time

Claims (3)

[Claims] (1) A liquid fuel combustion device in which a flat wick is provided in the combustion section, and the wick is formed by hardening fine ceramic fibers or particles with a flexible organic binder. (2) The weight of the organic binder is 3 to 15 times the weight of the wick.
A liquid fuel combustion device according to claim 1 expressed in %. (3) The liquid fuel combustion device according to claim 1 or 2, wherein the element constituting the organic binder is at least one of the three elements carbon, hydrogen, and oxygen.