JPS5888509A - Burner wick - Google Patents

Abstract

PURPOSE:To increase durability of a vaporizing section of a main wick, to improve the properties of an auxiliary wick and to facilitate detaching of the vaporizing section of the main wick, by isolating the main wick and the auxiliary wick by a partition, and arranging the vaporizing section and a fuel draw-up section of the main wick in a freely detachable manner. CONSTITUTION:A fuel draw-up section 5 of a main wick is disposed around the outer circumference of a partition 6, and an auxiliary wick 2 is disposed around the inner circumference of the partition 6 in the manner that the top of the auxiliary wick 2 is projected slightly above the top of the partition 6. A vaporizing section 3 of the main wick and a fuel draw-up section 4 connected to the lower end of the vaporizing section 3 are disposed around the outer circumference of a partition 7, and the top of the vaporizing section 3 is set at the same level as the top of the partition 7. In replacing the vaporizing section 3 of the main wick, a jig 15 is turned in a direction shown by an arrow (b) in the drawing by inserting its top 16 into a small hole 14, whereby a projection 9 is moved to the left end of an elongated hole 11. At the top 16 of the jig 15, there is formed a lug 17 which is engaged with a bent section 13 for lifting up the same in detaching the vaporizing section 3 of the main wick. With such an arrangement, it is enabled to replace the vaporizing section 3 with ease.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lamp wick for a combustor of the so-called suction vaporization method, which 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. It is also related to '. In this type of combustor, the fuel vaporization section of the wick is exposed to a high temperature atmosphere containing oxygen, so a portion of the fuel contained in the fuel vaporization section oxidizes during combustion.

・Especially trace amounts of high boiling point components in fuel (machine oil, diesel oil, salad oil 2, etc.)
If some of the fuel components are contaminated (for example, oxides, peroxides, resins, etc. that are generated when kerosene is stored in direct sunlight for a long period of time), the above tar-like substances may be removed. The production and accumulation of will increase significantly. BACKGROUND ART In conventional lamp wicks used in oil burners such as oil stoves, the vaporizing part is woven from threads mainly made of non-flammable fibers or flame-retardant fibers such as glass fibers and flame-resistant fibers. In this type of wick, the fiber diameter is large and the gap between the threads is large, so each capillary tube is relatively large.As a result, as the height at which kerosene is sucked increases, more and more capillary tubes are included at the tip of the wick. The amount of kerosene being poured into the tank was decreasing, and the temperature in the vaporization section was rising, making it easier for tar-like substances to form. Additionally, in order to make the tip of the vaporizer part thinner than the bottom and increase the vaporizing surface area, a method has been adopted in which the tip is placed in a diagonal state so that the flame rotation can be carried out quickly. In this case, initially it exhibits very good flame-generating characteristics, but as it is used for a long time, tar-like substances accumulate and the surface area of the vaporization part decreases significantly, and the heat capacity increases, resulting in a rapid temperature rise after ignition. In addition, since the increase in the amount of fuel vaporized is inhibited, the amount of combustion may deteriorate, or it may take a long time for the flame to circulate throughout the wick after one ignition, or even the flame may circulate after ignition, but only the tip of the vaporizer burns out. As a result, a phenomenon known as "burning out" occurred, in which the fire did not spread to the entire area. In addition, the above-mentioned phenomenon occurs early when kerosene mixed with different types or deteriorated in quality is used. Furthermore, in conventional lamp wicks, the vaporizing part and suction part were integrated, so when the wick becomes unusable and needs to be replaced, several parts that make up the combustor must be removed, which is extremely troublesome. In addition to this, the entire lamp wick, including the wick, which had not deteriorated at all, had to be replaced, placing a large burden on users in terms of time and cost.

The present invention isolates the main window and the auxiliary core by a separating material, makes the air intake part and the suction part detachable, and provides a small hole in the separating material at a position opposite to the recess provided at the tip of the main opening part. This invention solves the above-mentioned conventional drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a longitudinal section of a lamp wick according to an embodiment of the present invention, where 1 is a main window and 2 is an auxiliary wick.

3 is the main evaporation part, which is made by bonding a silica-alumina ceramic fiber (silica:alumina-60=60 weight ratio) with a binder. 4 is the main evaporation part 3 - lower part. The suction part connected to 1 is made of a braided cloth of glass fiber, cotton, etc. 6 is the master suction part made of a braided cloth of cotton, stapler, polypropylene, etc. The auxiliary wick 2 has its lower end It is sometimes located above the fuel surface, and is set at a height such that it is immersed in the fuel when extinguishing a fire.6 and 7 are isolation materials, which are materials that have a certain degree of heat resistance and strength and do not allow fuel to pass through. In this embodiment, a stainless steel plate of about 0.2 mm is used and also serves as a fixture for fixing the lamp wick.

8 is an adhesive tape using glue-like glue. FIG. 2 shows a cross section of the lamp wick divided into component parts. A master suction part 6 is provided on the circumference of the separating material 6, and an auxiliary core 2 is provided on the inner circumference with the tip slightly protruding. The main evaporation part 3 and the suction part 4 connected to the lower part are installed on the outer periphery of the separator 7, and the tip of the main evaporation part and the tip of the isolation material 7 are set at the same height.

Further, the tip of the isolation material 6 and the tip of the isolation material 7 are set at the same height, so the tip of the auxiliary core 2 extends slightly above the tip of the main vaporization part 3. Isolation material 6.
The separating member 7 has a cylindrical shape as shown in FIG. 3, is fixed to the lamp wick as shown in FIG. 4, and is detachably integrated with the other. A protrusion 9 is formed on a part of the upper circumferential side surface of the separator 6, and this protrusion 9 passes inside a guide 1o provided on the lower circumferential side surface of the separator 7. It is located inside the elongated hole 11. In this state, the lower end surface of the suction section 4 connected below the main vaporization section 3 and the upper end surface of the master suction section 6 are in contact with each other, and the isolation member 7 is rotated to move the protrusion 9 along the elongated hole 11. When the protrusion 9 reaches the right end of the elongated hole 11, it is fixed.

FIG. 6 shows the main parts of the main conversion section 3.

Four portions 12 are provided at at least two locations on the circumference at the tip of the main evaporating portion 3, and at least one of the recesses 12 is provided at a position facing an ignition means (not shown). The separator 7 at a position facing the four parts 12 forms a bent part 13 in the direction of the main core, and a small hole 14 is provided on this bent part 13. Further, the length of the bent portion 13 is set to be less than the thickness of the lamp so as not to interfere with the vertical movement of the lamp wick. Further, if the four portions 12 are too large, they may have an adverse effect on the combustion state and the like. In this example, the length is 1
As a result of setting the ON height to 6 mm, almost no effect on combustion was observed.

In the above configuration, by using a flat plate of silica-alumina ceramic fiber in the main vaporization section 3, the oil content of the main vaporization section 3 is increased, so the durability against defective kerosene is greatly improved. be done. Figure 6 shows the change in combustion amount when the lamp wick according to this embodiment (solid line) and the conventional lamp wick mainly made of glass fiber (broken line) are burned in an actual combustor using kerosene mixed with 0.1% salad oil. These are the measured results.

As is clear from FIG. 6, the lamp wick according to the present example exhibits better characteristics than the conventional lamp wick. This is because the ceramic fiber flat plate is formed by cutting short ceramic fibers into a paper shape and bonding them with a binding material, and the capillary tubes are extremely fine and uniform. .

Next, the auxiliary core 2 will be described. The auxiliary wick 2 is provided for the purpose of quickly spreading the flame throughout the wick after ignition. Conventional lamp wicks made of glass fiber, etc., have a thin wall near the tip and are made in a diagonal state in order to increase the vaporizing surface area, and because the amount of fuel contained in the tip is small, After the ignition, the fire was quickly circulated. However, the flat plate made of ceramic fiber used in this example has a considerable amount of oil even near the tip, making it difficult for the temperature to rise quickly after ignition, and therefore requiring a long time to heat up. . Therefore, an auxiliary wick 2 whose tip is made of glass fiber, flame-resistant fiber, etc. is provided to speed up the fire circulation.

Further, the tip of the auxiliary wick 2 is made to protrude slightly from the tip of the main vaporization section 3, thereby forming a large flame above the main vaporization section 3 when the flame spreads.

The tip of the main evaporating part 3 is reliably heated. Further, the lower end of the auxiliary wick 2 is positioned above the fuel surface during combustion, and is immersed in the fuel when extinguishing the fire. Therefore, when extinguishing a fire, fuel is sucked up into both habitat 1 and auxiliary wick 2, but because both are blocked from receiving fuel by isolation materials 6 and 7, habitat 1 receives fuel for vaporization from the auxiliary wick. 2, the fuel necessary for ignition and fire circulation is drawn up completely independently. On the other hand, during combustion, fuel is always sucked up into the habitat 1, whereas the auxiliary wick 2 is located far above the fuel surface, so no fuel is sucked up. Therefore, the fuel sucked up into the auxiliary wick 2 when extinguishing a fire is ignited and circulates around the fire.
It burned out in a short time, and reached a state of 9 burnt during steady combustion, with almost no accumulation of tar-like substances.
Initial ignition.

It is possible to maintain fire circulation characteristics for a long time.

Furthermore, in this embodiment, the main window suction part 6 and the main evaporation part 3 are made detachable, which makes it possible to replace the lamp wick with a very simple operation and at a low cost, which has a very large effect. It becomes. In other words, no matter how much the durability of the main vaporization section 3 against defective kerosene is improved, it is impossible to make it completely free from tar generation. Therefore, in this embodiment, the durability of the wick was improved as much as possible.

If it still deteriorates, only the main vaporizer 3 can be replaced with a simple operation. Concave portion 12 in FIG. Bent portion 13. The small hole 14 is nothing but what allows the main vaporizer 3 to be replaced easily. When attaching the half-core vaporizer 3, the protrusion 9 is moved along the guide 1o to the left end of the elongated hole 11.

Next, insert the tip 16 of the turtle tool 16 into the small hole 14 and
Rotate in the direction of. At this time, the protrusion 9 moves within the elongated hole 11 and is fixed at the right end. Next, when it becomes necessary to replace the main vaporizer 3 after using the wick for a long period of time, insert the tip 16 of the jig 75 into the small hole 14 and rotate it in the direction indicated by the arrow. At this time, the protrusion 9 moves to the left end of the elongated hole 11. Jig 1
A locking part 17 is formed on the tip 16 of the holder 6. When you want to remove the main vaporizing part 3, just lock the locking part 17 to the bent part 13 and lift it up. The user does not have to touch the wick contaminated with fuel when replacing it, and can easily remove it. Small hole 14 provided in bent portion 13
is for locking the jig 15, therefore, it does not necessarily have to be a small hole as shown in FIG. For example, a shape like a notch 18 as shown in FIG. 7 may be used. Alternatively, as shown in FIG. 8, a protrusion 19 may be provided upwardly in a part of the isolator 7 without providing a recess in the main vaporizer 3, and a small hole 14 may be provided in the protrusion 19. However, with this method, when turning the fire with auxiliary wick 2 after ignition,
Heat is absorbed by the protrusion 19, and a phenomenon occurs in which the temperature of the atmosphere is less likely to rise, and the combustion rate is considerably slowed down.

Therefore, it is better not to form too many upwardly protruding parts of the main vaporizing part 3. Another feature of this embodiment is that at least one of at least two recesses 12 provided at the tip of the main window vaporizer 3 is provided at a position facing the ignition means, thereby improving the ignition characteristics. be done. That is, there is a recess 1 at the tip of the main window vaporizer 3 facing the ignition position.
If 2 is not formed, the tip of the main window vaporizer 3 is uniform and has a large oil content, so even if the auxiliary wick 2 is ignited, a sudden temperature rise is unlikely to occur. On the other hand, when the recess 12 is formed, a corner 19 is formed as shown in FIG. 6, and since this part has a relatively small heat capacity, the corner 19, a rapid temperature rise is likely to occur, and fire transfer from the auxiliary wick 2 to the main vaporizing section 3 is likely to occur.

As described above, according to the present invention, the durability of the main vaporizer and the characteristics of the auxiliary core are greatly improved, and even if these deteriorate, only the main vaporizer can be easily removed and replaced. Moreover, since only the vaporization part is replaced, it is inexpensive and extremely effective.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a lamp wick according to an embodiment of the present invention, Fig. 2 is an exploded sectional view of the same, Figs. 3 and 4 are detailed perspective views of main parts, and Fig. 6 is a detailed perspective view of main parts. , Fig. 6A, 8 are characteristic diagrams showing the effects of the present invention, and Fig. 7 1. FIG. 8 is a perspective view of essential parts showing another embodiment of the present invention. 2. Auxiliary core, 3. Main vaporization part, 6, 7... Isolation material, 9... Protrusion, 1
o... Guide, 11... Long hole, 12.
...Concave part, 13...Bending part, 14...
...O Koko Name of agent Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 0) A living body consisting of a suction part that sucks up liquid fuel, a vaporizing part connected above the suction part, an auxiliary wick, and an isolating material that isolates the living space and the auxiliary wick. , the vaporizing part of the above-mentioned inhabitant and the suction part are removably connected, and a recess is provided in at least two places at the tip of the vaporizing part of the above-mentioned inhabitant, and a small hole smaller than the recess is formed in the isolating material at a position opposite to the recess. A lamp wick characterized by having a. (2) The lamp wick according to claim 1, wherein the lower end of the auxiliary wick is positioned above the fuel surface during combustion and is immersed in the fuel during extinguishing. (3) The lamp wick according to claim 1 or 2, wherein the tip of the auxiliary wick projects higher than the tip of the vaporizing section. (4) A lamp wick according to claim 1, in which the isolating material at a position opposite to the recess provided at the tip of the vaporizing part of the living space is bent in the direction of the living space. The lamp wick according to claim 4, wherein the length of the bent portion is equal to or less than the thickness of the inhabitant. (6) The lamp wick according to claim 1, wherein a paper-like flat plate made of heat-resistant short fibers such as ceramic or glass is used for the whole or at least a part of the vaporizing part of the inhabitant. (7) The lamp wick according to claim 1, wherein at least one of the concave portions at the tip of the main evaporating portion is provided at a position facing the ignition means.