JPH10238722A - Torch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a flame formed by a torch easily seen and hard to be blown off by wind and the like. SOLUTION: A torch is provided with a cylindrical torch body 4 which includes a flame forming mechanism 5 therein. The flame forming mechanism 5 is provided in the vicinity of one end of the torch body 4 for forming a flame while a grip portion 2 is provided in the vicinity of the other end of the torch body 4. The torch body 4 is also provided with a coloration material 13 in the vicinity of one end thereof, wherein the coloration material 13 includes a metal which causes a flame reaction by coming into contact with the flame formed by the flame forming mechanism 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torch torch used in the Olympic Games, a torch torch used in a national polity, and the like.

[0002]

2. Description of the Related Art In this type of torch, a flame is formed on the upper end side of the torch main body, and a runner grips the lower end side of the torch main body.
Used in a state where the flame burns. As a torch of this type, a torch for a torch relay using a solid fuel mainly composed of phosphorus or magnesium is known. This torch is provided with a solid fuel filling section on the upper end side inside the torch main body, and by igniting the upper end, a flame can be continuously formed. The flame formed from the torch of this configuration has a bright color and a large amount of white smoke, so that the flame looks good even in daylight and has a high show effect. On the other hand, a gas fuel system using liquefied petroleum gas is also used in part. This type of torch is provided with a flame forming mechanism including a fuel tank, a flame forming burner, a fuel supply amount adjusting valve, and the like in a hollow cylindrical torch main body. It supplies gaseous fuel and forms a flame on the upper side of the burner. Of course,
In this case, the flame is formed to protrude outside from the upper end side portion of the torch main body.

[0003]

However, conventional torches have the following disadvantages. In the case of the solid fuel type, although the visibility of the flame is good, it is difficult to use because a large amount of smoke is generated when a plurality of runners and a crowd run. In addition, solid fuel cannot be easily refilled, and disposable use is actual and not economical. On the other hand, in the case of the gaseous fuel system, although the fuel exchange structure can be easily adopted, the flame is almost transparent because it is used in a substantially complete combustion state, and the flame is hard to see because smoke is not emitted.
Then, when trying to show a flame, the fuel consumption becomes large, and the small cylinder has a drawback that the combustion duration becomes short. Further, in a torch for such a use, it is necessary to consider blowing out by wind. An object of the present invention is to obtain a torch in which a flame to be formed is easily visible and hardly blows off by wind or the like.

[0004]

In order to achieve this object, a flame forming mechanism is provided in the hollow cylindrical torch body of the present invention, and a flame can be formed by the flame forming mechanism near one end of the torch body. A characteristic configuration of the torch is that a color-forming substance containing a metal that exhibits a flame color reaction in contact with the flame formed by the flame forming mechanism is provided in a portion near one end of the torch main body. If you use this torch,
A flame is formed by the flame forming mechanism. In contact with the flame, a coloring material is disposed at one end of the torch main body, and a flame color reaction is generated by the metal ions. Therefore, since the flame is colored, the visibility is improved, and a torch with a high show effect can be obtained. As described above, when a colored flame is formed by using a flame reaction, it is usually performed to contain a mist of a metal salt solution on the fuel side, but in the case of the present application, for example, for a fuel cylinder or the like, It would be desirable to have a refillable, replaceable type. In this case, if a salt solution mist is included on the fuel side, commercially available one cannot be used, which not only increases the cost, but also shortens the life of the cylinder due to corrosion, which is not preferable. Therefore, as in the present application, it is preferable to dispose the coloring substance on the torch main body in a state of contact with the flame.

[0005] Here, the amount of air of the combustion gas supplied to the flame-forming burner provided in the flame-forming mechanism is defined as:
It is preferable to have an air amount setting means that can be set to 30% or less (preferably 20% or less, usually about 10%) of the theoretical air amount. In the region where the air amount for such a fuel amount is significantly lower than the theoretical air amount,
The flame can be yellowish, and the flame itself burns with so-called melamella (conical inner flame, spindle-shaped outer flame is not clearly formed, but rather fluctuating flame is formed) This is because the flame can be seen satisfactorily from this point as well. This effect is easier to obtain when the air volume is smaller.

[0006] The above is a contrivance in the present application mainly for making it easy to see the formed flame. However, as described above, in a torch torch or the like, the flame does not blow out due to wind or the like. It is also important. The contrivance on this point will be described below. That is, in the torch having the configuration described so far, a refractory which comes into contact with the flame formed by the flame forming mechanism and has a temperature higher than the ignition temperature of the flame is provided in a portion near one end side of the torch main body. By doing so, the refractory is maintained at a high temperature and glows red under a normal ignition state. Then, for example, when the flame blows out due to the influence of the wind, the refractory exerts the igniting ability (in other words, the flame holding ability), and the flame can be maintained in a good combustion state. Of course, the unburned air-fuel mixture is heated by the refractory to stabilize the combustion (increase the combustion speed). As such a refractory, it is preferable to adopt a refractory fiber molded product, a porous refractory, or the like. This is because, in the refractory fiber molded product, since the refractory fiber is maintained at a high temperature and has good moldability, the refractory fiber can be favorably used by holding it near the upper end side of the torch main body. On the other hand, in the case of the porous refractory, it can be maintained at a high temperature and can exhibit durability.

As described above, when the refractory is disposed at a predetermined position for the purpose of holding the flame, the coloring material containing a metal exhibiting the flame reaction described above is applied to at least the flame contact side of the refractory. It is preferable to keep it. In this configuration, for example, a flame reaction reaction mechanism and a flame holding mechanism are integrally provided by impregnating a refractory fiber or the like with a metal salt exhibiting a flame reaction and disposing it at a predetermined site. Can be. Therefore, in this way, by installing as a unit in or around the flame, the flame reaction of metal ions in the high temperature refractory fiber occurs strongly, and at the same time, the color development and the flame holding by the high temperature object are simultaneously performed, It can be realized by an operation simply by arranging a refractory unique to the present invention that can be generated.

In considering such a configuration,
As the refractory as described above, a flame-colored metal-containing refractory (for example, CaO
The same operation and effect can be obtained by using (a refractory containing a (NaI) component).

The mechanical structure of the refractory used for such a purpose is as follows. The refractory is formed in a hollow cylindrical shape, and is interposed on the inner peripheral surface of the hollow cylinder of the torch body located near one end thereof. Preferably, the flame formed inside the torch body is also formed in the internal space of the hollow cylindrical refractory. In the case of the torch of this configuration, a flame can be formed in the hollow cylindrical refractory and on the upper side in a state as shown in FIG. 2, and the flame color reaction does not disturb the flame at the peripheral portion of the flame. And the original purpose can be achieved satisfactorily.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A torch 1 according to the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of the entire configuration of the torch 1 of the present application, and FIG. 2 is a cross-sectional view of a main part of the torch 1 of the present application. As shown in FIG. 1, the torch 1 of the present application is provided with a grip portion 2 at a lower end portion thereof, and this portion is used by a runner gripping. Therefore, the use of the torch 1 of the present application is limited, and the end side different from the flame forming side can be formed as a grip. As shown in FIGS. 1 and 2, the torch 1 of the present application includes a hollow cylindrical torch main body 4.
The flame forming mechanism 5 is provided therein, and the flame 6 is formed near the upper end side of the torch main body 4 by the flame forming mechanism 5. The flame forming mechanism 5 will be described in further detail. This mechanism 5 is provided with a detachable butane cylinder 7 as a fuel cylinder, and is used for adjusting a supply amount for supplying a fuel gas from the cylinder 7 to the flame forming burner 8. Valve 9 (needle valve), fuel gas discharge nozzle 1
0, combustion gas introduction pipe 1 having primary air port 11 on the side
2 and the like. In the flame forming mechanism 5, a combustion gas in which primary air is mixed with a fuel gas is supplied to a burner 8 and combustion is performed to form a target flame 6.

In the flame forming mechanism 5, the amount of air of the combustion gas supplied to the flame forming burner 8 is calculated as follows.
It is configured to be set to 30% or less (about 10%) of the theoretical air amount. That is, the opening area of the primary air port 11 is relatively small, and the amount of air flowing through the opening 11 is a predetermined amount with respect to the amount of fuel gas in a normal combustion state. Or less (30% or less of the theoretical air amount). Here, a configuration may be adopted in which only the fuel gas is supplied to the burner without providing the primary air port. Such a configuration for reducing the amount of air to a predetermined value or less is called air amount setting means.

Next, the characteristic configuration of the present application will be described. As described above, a feature of the present application is that a structure utilizing a flame reaction and a flame holding structure may be employed. Explaining the former characteristic configuration, a color-forming substance 13 containing a metal exhibiting a flame-color reaction upon contact with the flame 6 formed by the flame-forming mechanism 5 described above is provided near the upper end side of the torch main body 4. Provided. On the other hand, to explain the latter characteristic configuration, a refractory 14 which comes into contact with the flame 6 and has a higher temperature than the ignition temperature of the flame 6 is similarly provided near the upper end side of the torch main body 4. More specifically, a ceramic fiber molded product (an example of a refractory fiber molded product as the refractory 14) in which sodium chloride (an example of the coloring substance 13) is impregnated inside a stainless steel tube 40 as the torch body 4. It is lined. That is, a molded product of silica-alumina fiber used as a refractory heat insulating material of an industrial furnace is provided. As shown in the figure, this is a hollow cylindrical molded product, and is configured to be interposed on the inner peripheral surface of the hollow cylinder at the upper end side portion of the torch body 4. Therefore, the flame 6 formed by the burner 8 is formed in the internal space of the hollow cylindrical refractory and the space above the torch.

By adopting this configuration, when the flame forming mechanism 5 is burning, the heat transfer to the stainless steel tube 40 is reduced due to the heat insulating effect of the ceramic fiber, and the inner surface of the ceramic fiber is kept at a high temperature. Then, due to the sodium ions impregnated in the ceramic fiber, the flame 6 exhibits a yellow color which is a flame reaction. As a result, the flame holding by the high-temperature object (the refractory 14) and the flame reaction by the impregnated sodium ions are compatible, and the effective torch 1 is obtained.

[Another Embodiment] Another embodiment will be described below. (A) In the above example, an example in which a refractory fiber molded product is used as the refractory has been described, but a refractory fiber itself or a porous refractory such as a porous ceramic may be used. (B) Furthermore, in the description so far, the refractory and the coloring substance have been described as being different from each other.
It is also possible to use a flame-colored reaction metal-containing refractory whose component is a metal exhibiting a flame-colored reaction. In these cases, the object of the present invention can be achieved if the coloring material is exposed at least on the flame contact side of the refractory. (C) The refractory used for the purpose of exhibiting the flame holding effect by contacting with the flame may be a material having a low thermal conductivity (several kcal / mh ° C. or less) as a material property.
The form of the refractory can be any form as described above,
For example, it may be porous or fibrous. In the case of such a material, a coloring substance (for example, a metal salt) can be easily impregnated. In addition, as a method of attaching a coloring substance (a substance capable of generating metal ions in a high temperature state) to the surface of the refractory, any known method can be adopted. (D) On the other hand, sodium is suitable for a yellow color as a metal for obtaining a flame color reaction, but various metals can be used alone or in combination according to a desired flame color. As for visibility, sodium is excellent in color. (E) The shape of the refractory can be achieved by contacting it with a flame other than the lining of the combustion cylinder. For example, a ceramic fiber woven into a net shape is inserted into the flame (FIG. 3 ( A)), a porous ceramic formed into a star shape is disposed in the flame forming portion (FIG. 3B), and the like is optional. (F) In addition to liquefied petroleum gas, compressed natural gas and other combustible gases, as well as petroleum-based liquid fuels such as kerosene, can be used. (G) In the above embodiment, the flame visibility and the flame holding property have mainly been described. However, if the flame visibility is a problem and a show-up effect is expected, an appropriate amount of smoke is generated. Sometimes it's better to get out of the torch. In this regard, a smoke generating substance (for example, silica (SiO ₂ ), titania (TiO ₂ ), magnesium alone or an oxide thereof (Mg, Mg ₂ O ₃ )) which generates a smoke generating effect in the flame.
May be supplied as a powder by a feeder having a simple configuration. (H) In the above embodiment, an example is shown in which the torch main body 4 is used by attaching the grip member 41 constituting the grip portion 2 near the lower end thereof. The lower end side may be appropriately molded so that it can be used as the grip portion 2. Furthermore, even if it is formed in a simple hollow cylindrical shape, it can be used as a grip portion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the torch of the present application.

FIG. 2 is a sectional view of a main part of the torch of the present invention.

FIG. 3 is a view showing another embodiment of the torch of the present application.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Torch 2 Grip part 4 Torch main body 5 Flame formation mechanism 13 Coloring substance 14 Refractory

Claims (7)

[Claims] 1. A torch having a flame forming mechanism in a hollow cylindrical torch main body and capable of forming a flame by the flame forming mechanism near one end of the torch main body, wherein the flame is formed by the flame forming mechanism. A torch provided with a coloring material containing a metal that exhibits a flame color reaction in contact with a flame to be produced at a portion near one end of the torch body. 2. An air amount setting means capable of setting an air amount of combustion gas supplied to a flame forming burner provided in the flame forming mechanism to 30% or less of a theoretical air amount. Torch. 3. A refractory, which is in contact with a flame formed by the flame forming mechanism and has a higher temperature than the ignition temperature of the flame, is provided in a portion near the one end side of the torch main body. 2. The torch according to 2. 4. The torch according to claim 3, wherein the refractory is at least one selected from a refractory fiber molded product and a porous refractory. 5. The torch according to claim 3, wherein the coloring substance is held on at least a flame contact side of the refractory. 6. The torch according to claim 3, wherein the refractory is a flame-reactive metal-containing refractory containing the flame-reactive metal as a component. 7. The refractory is formed in a hollow cylindrical shape and is interposed on the inner peripheral surface of the hollow cylinder of the torch main body located near the one end side, and the flame is also applied to the internal space of the hollow cylindrical refractory. The torch according to any one of claims 3 to 6, wherein the torch is formed.