KR20070009324A - Torch overflowing of liquefied gas - Google Patents

Abstract

A carburetor for a torch is provided to prohibit fire from breaking out around the torch by preventing fire from burning imperfectly when igniting at the early stage. A carburetor for a torch comprises a connection device(21) connected to a supplying end of a gas supply pipe, and formed with a discharging unit(22) ejecting the liquefied butane gas to the front; an inner cap(23) installed at the side of the liquefied butane gas discharging unit of the connection device, and formed with a liquefied butane gas collection space(231) inside having a first ejecting hole(232) around; an outside cap(24) fixed to the connection device while wrapping the outside surface of the inner cap with the constant gap, wherein a vaporization space(241) is mounted between the inner cap and the inside, a second ejecting hole(242) ejecting the vaporized gas at the center of a front surface plate; and a flame forming pipe(25) installed to wrap the outside cap, protruded to the front, and mounted to guide the heat of a flame to inner and outside caps, and formed with plural first air intake holes(251) to mix the vaporized gas and the first air.

Description

Torch overflowing of liquefied gas}

1 is a perspective view showing the overall configuration of a torch equipped with a carburetor of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is an enlarged view of a portion B of FIG. 2;

4 is a view for explaining the initial ignition process of the vaporizer according to the present invention,

       4A is an enlarged cross-sectional view showing a vaporizer;

       4B is a cross-sectional view taken along the line C-C in FIG. 4A.

5 is a cross-sectional view showing a state in which a flame is generated after the initial ignition of the vaporizer according to the present invention.

Figure 6 is a cross-sectional view showing another embodiment of the discharge means according to the invention.

Figure 7 is a sectional view showing another embodiment of the discharge means according to the invention.

8 is a cross-sectional view showing a torch using a conventional liquefied butane gas.

<Explanation of symbols for the main parts of the drawings>

1: main body

    11: gas supply pipe

    12: control valve

2: carburetor

    21: connector

    22: discharge means

         221: ejection hole, 222: front projecting nozzle tube, 223: ejection hole,

         224: reduction path, 225: front projection nozzle tube,

         226: front projecting nozzle pipe, 227: stagnant space, 228: ejection hole

    23: inner cap

         231: collecting space, 232: first blowout hole

    24: outer cap

         241: vaporization space, 242: second blowout hole

    25: flame generating tube

         251: primary air inlet hole

3: ignition means

4: liquefied butane gas cylinder

The present invention relates to a torch carburetor, and more particularly to a torch carburetor which prevents incomplete combustion of flame during initial ignition and in use.

In general, the torch (torch lamp) refers to a device used when high temperature heating is required. It is mainly used for connecting pipes in various plumbing works and for bending pipes. It is widely used for many purposes.

The torch uses kerosene and liquefied butane gas. The present invention is an improvement of a vaporizer constituting a torch using liquefied butane gas.

Thus, a description of the torch using a known liquefied butane gas as follows.

8 is a cross-sectional view showing a torch using a conventional liquefied butane gas.

A torch using liquefied butane gas (hereinafter referred to as a "torch") includes a gas supply pipe 101 configured to be detachable from a liquefied butane gas cylinder, and adjusts the degree of opening and closing of the gas supply pipe 101. The main body 100 including the valve 102 and the supply terminal of the gas supply pipe 101 to vaporize the liquefied butane gas and the vaporized butane gas (hereinafter referred to as "vapor gas") and the primary air The mixture is composed of a vaporizer 200 that generates a flame through the ignition of the ignition means 400 by ejecting.

And. The vaporizer 200 is connected to the supply terminal of the gas supply pipe 101 to vaporize the liquefied butane gas to eject a gas (hereinafter referred to as "mixed gas") mixed with the vaporized gas and the primary air (hereinafter referred to as "mixed gas") 20 and a flame generating tube 300 which surrounds the vaporization blowing means 201 as a whole and generates flames from the front.

That is, the vaporization blowing means 201, the vaporization unit 202 for vaporizing the liquefied butane gas supplied through the gas supply pipe 101, and the mixed gas ejection unit for mixing the vaporized gas with the primary air and then ejected 207.

The vaporization unit 202 includes a first vaporization chamber 203 to which liquefied butane gas is primarily supplied from the gas supply pipe 101, and is partitioned in front of the gas supply pipe 101 to include a first nozzle 205. A supply pipe connection composed of a second vaporization chamber 204 and a second vaporization chamber which extends to the periphery of the flame drawn out from the first vaporization chamber 203 and generated by the mixed gas ejection part 207. It consists of a vaporization pipe 206 connected to 204.

In addition, the mixed gas ejection unit 207 is provided in front of the first nozzle 205 that is the front of the second vaporization chamber 204 and the vaporized gas ejected through the first nozzle 205 and the primary air It consists of a mixing tube 208 including a second nozzle 209 that mixes and ejects forward. That is, the mixing pipe 208 is provided at the rear, and the air mixing space receiving the primary air through the air inlet hole and the second nozzle 209 having a large diameter provided in communication with the front of the air mixing pipe 208. It consists of.

Thus, the operation relationship of the conventional torch configured as described above is briefly described as follows.

As shown in FIG. 8, first, when the control valve 102 is opened while the liquefied butane gas cylinder is connected to the main body 100, the liquefied butane gas of the liquefied butane gas cylinder passes through the gas supply pipe 101 to provide a vaporization unit ( It flows into the 1st vaporization chamber 203 of 202.

Next, the liquefied butane gas introduced into the first vaporization chamber 203 passes through the vaporization pipe 206 and then flows into the second vaporization chamber 204, and then is ejected through the first nozzle 205 and the mixed gas ejection part. It flows into the air mixing space of the mixing pipe 208 which comprises 207.

Next, the liquefied butane gas introduced into the air mixing space is mixed with the primary air and then ejected forward through the second nozzle 209 to generate a flame through the ignition of the ignition means 400. That is, the flame is generated in the flame generating pipe (300).

And the above description has described the process of the initial ignition, and if the flame is continuously generated, the vaporization pipe 206 around the flame is heated so that the liquefied butane gas passing through the vaporization pipe 206 can be ejected. .

However, the following problem occurs in the process of using the conventional torch configured as described above.

First, when the torch is initially used, liquefied butane gas is ejected in a micronized state, which causes incomplete combustion.

In the initial ignition stage, the liquefied butane gas is not vaporized and is moved in the order of the first vaporization chamber, the vaporization tube, and the second vaporization chamber, so that the liquefied butane gas is not vaporized and passes through the first nozzle to the second nozzle. As it is ejected, incomplete combustion such as sulfur salt, flashback, and lifting occurs during initial ignition.

In addition, when liquefied butane gas is evaporated and expanded in a liquid, the liquefied butane gas is diffused to about 250 to 280% .If the liquefied butane gas is vaporized and exposed to the atmosphere, the liquid gas is suddenly expanded so that the flame This crumbling phenomenon also occurs. Therefore, the phenomenon of fire occurs frequently around the torch during initial ignition due to the tumbling phenomenon.

In addition, as the vaporization proceeds through the vaporization pipe, the liquefied butane gas is not completely vaporized due to the narrow vaporization area. Therefore, sulfur salts in flames during use. Incomplete combustion, such as backfire, lifting, and swelling, also occurs frequently.

In addition, the mixing tube provided inside the flame generating tube is essentially lengthened to sufficiently mix the vaporization gas and the primary air to prevent incomplete combustion, thereby providing a second nozzle provided at the front of the mixing tube. It is located in the front side of this flame generating pipe.

Therefore, the flame generated immediately in front of the second nozzle is in continuous contact with the front of the flame generating tube, so that a rapid overheating phenomenon occurs in front of the flame generating tube. Therefore, the front of the flame generating tube causes damage such as oxidation and cracking due to high heat, and also has a problem in that the front of the flame generating tube is severely deformed.

In addition, if the torch is used for a long time because the flame is directly heated by the flame, the torch may be damaged due to continuous heating of the small diameter gas pipe, causing the front part of the gas pipe to melt or cracking. It also had the problem of completely damaging it.

In addition, many components of the vaporizer had a problem that the overall unit price of the torch was increased.

Accordingly, the present invention is invented to solve the above problems, by preventing the phenomenon of the gas is rapidly expanded in the air by ejecting the fully vaporized gas during the initial ignition, sulfur salt, backfire, lifting, shoulder It is an object of the present invention to provide a torch carburetor that can prevent incomplete combustion of a flame such as a sting.

It also aims to prevent incomplete combustion of the off-gas in advance by extending the screen area to the maximum.

Also, by preventing the flame from directly contacting the front of the flame generating tube, it is possible to prevent the flame front from being damaged by oxidation or crack due to heat, as well as to deform the front of the flame generating tube. There is also a goal to prevent in advance.

The present invention for achieving the above object includes a gas supply pipe connected to the liquefied butane gas cylinder, the main body including a control valve for adjusting the opening and closing degree of the gas supply pipe, liquefied butane gas is connected to the supply end of the gas supply pipe In the torch comprising a vaporizer to produce a flame through the ignition of the ignition means by vaporizing the mixed with the primary air and then ejected; The carburetor is connected to a supply end of the gas supply pipe and includes a discharge means for discharging the liquefied butane gas to the front, and the liquefied butane gas discharge side of the connection is provided inside the first blowing hole around The formed liquefied butane gas collecting space and the inner cap and the outer surface of the inner cap is fixed to the connecting body while being spaced at regular intervals, the inner side is provided with a vaporization space between the inner cap and the front plate The outer cap is formed in the center of the outer cap is formed with a second ejection hole for ejecting the vaporized gas, and the outer cap is in close contact with the periphery of the outer cap to conduct heat of the flame to the inner and outer caps Characterized in that the flame generating tube is formed with one or more primary air inlet holes to mix the primary air to the gas.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the overall configuration of a torch equipped with a vaporizer of the present invention, Figure 2 is a cross-sectional view taken along the line A-A of Figure 1, Figure 3 is an enlarged view of portion B of FIG.

Accordingly, the torch of the present invention includes a main body 1 including a gas supply pipe 11 connected to the liquefied butane gas cylinder 4 and a control valve 12 for adjusting the opening and closing degree of the gas supply pipe 11. In the torch, which is connected to the supply end of the gas supply pipe 11, vaporizes the liquefied butane gas and mixes it with the primary air, and then blows it, and generates a flame through the ignition of the ignition means 3. In addition, the carburetor 2 is improved to prevent incomplete combustion of the flame during the initial ignition and to prevent the release of unvaporized gas during use.

That is, the vaporizer 2 is connected to the supply end of the gas supply pipe 11, the connecting body 21 including a discharge means 22 for discharging the liquefied butane gas to the front and the connecting body 21 The inner cap 23 is provided on the liquefied butane gas discharge side is provided with a liquefied butane gas collecting space 231 is formed around the inner side of the inner cap 23, The second ejection hole 242 is fixed to the connecting body 21 while being spaced at regular intervals and provided with a vaporization space 241 between the inner cap 23 and an inner side of the front plate, and vaporized gas is ejected in the center of the front plate. ) Is formed outside the outer cap 24, the outer cap 24 is wrapped tightly and protrudes forward to conduct the heat of the flame to the inner and outer caps (23, 24) evaporation is ejected Flame generating pipe 25 is formed with one or more primary air inlet hole 251 to mix the primary air in the gas It consists of a.

In addition, the first ejection hole 232 may be provided at the upper circumference of the inner cap 23 to discharge only the vaporized gas floating above the liquefied butane gas into the vaporization space 241.

In addition, the discharge means 22 is formed in the interior of the connecting body 21 in communication with the gas supply pipe 11, the front plate of the inner cap 23 that is the liquefied butane gas inside the inner cap 23. It is composed of a blowout hole 221 for ejecting to collide with the inside of the.

In addition, the front projection nozzle tube 222 is further provided in front of the ejection hole 221 to improve the collision effect with the liquefied butane gas and the front plate of the inner cap 23.

Hereinafter, the operational relationship of the present invention configured as described above are as follows.

4 is a view for explaining the initial ignition process of the vaporizer according to the present invention, Figure 4a is an enlarged cross-sectional view showing a vaporizer, Figure 4b is a cross-sectional view taken along the line C-C of FIG.

The operation relationship of the torch equipped with a carburetor according to the present invention will be described. First, when the initial ignition process is described, the liquefied butane gas to the gas supply pipe 11 through the opening of the control valve 12 (see FIG. To pass.

Then, the liquefied butane gas passing through the gas supply pipe is ejected into the front plate of the inner cap 23 by passing through the ejection hole 221 and the front protruding nozzle tube 222 formed in the connecting body 21. In this process, the liquefied butane gas collides with the front plate and is ejected while the liquefied butane gas collides with the inner surface of the front plate and diffuses in all directions.

Therefore, some of the vaporized liquefied butane gas is raised to the upper portion of the collecting space 231 formed inside the inner cap 23, and the liquid liquefied butane gas having a large specific gravity sinks downward to form a liquid layer.

Therefore, the liquefied butane gas raised to the upper portion of the collecting space 231 passes through the first jet hole 232 formed in the upper circumference of the inner cap 23, and then the outer surface and the outer cap 24 of the inner cap 23. Diffused into the vaporization space 241 formed between the inner surface of the) and then is ejected through the second jet hole 242 formed in the center of the front plate of the outer cap (24).

The vaporized liquefied butane gas (hereinafter referred to as "vapor gas") ejected from the second ejection hole 242 is ejected forward in the flame generating tube 25 and is formed in the flame generating tube 25. The vaporized gas mixed with the primary air introduced into the primary air input hole 251 and thus mixed with the primary air (hereinafter referred to as "mixed gas") is ejected to the front of the flame generating pipe 25 and At the same time it is ignited through a separate ignition means to create a flame.

Therefore, the above-described process has been described for the initial ignition process, it is possible to prevent incomplete combustion during the initial ignition by ejecting the gas vaporized during the initial ignition.

That is, by making the liquefied butane gas injected from the connecting body 21 collide with the front plate of the inner cap 23, a part of the liquefied butane gas is vaporized due to the instantaneous diffusion and scattering caused by the collision. Therefore, some vaporized liquefied butane gas is introduced into the vaporization space 241 and then ejected forward through the second ejection hole 242 to prevent incomplete combustion such as sulfur salt, flashback, and lifting during the initial ignition. will be.

In addition, flame tingling caused by the ejection of liquefied mixed gas can be prevented in advance.

5 is a cross-sectional view showing a state in which a flame is generated after the initial ignition of the vaporizer according to the present invention.

In the process of generating a flame, the mixed gas mixed with the primary air is ejected to the front of the flame generating pipe 25 to generate the flame.

Then, the heat of flame is conducted to the flame generating tube 25 and the conductive heat to be conducted to the flame generating tube 25 is conducted to the outer cap 24 provided in close contact with the flame generating tube and to the outer cap 24. The conducted heat is conducted to the inner cap 23 while being radiated to the vaporization space.

Accordingly, the temperature of the vaporization space 241 formed in the space between the outer cap 24 and the inner cap 23 is increased due to the divergence of the heat of the outer cap 24 and the inner cap 23, thereby the vaporization space 241. Liquefied butane gas passing through) is completely vaporized through the second ejection hole 242.

That is, the vaporization space is broadly formed between the outer surface of the inner cap 23 and the inner surface of the outer cap 24, so that the screen area is expanded, so that the vaporization efficiency can be maximized.

Therefore, by expanding the surface area to the maximum, it is possible to prevent the incomplete combustion of the gas in advance by preventing the evaporation of the unvaporized gas during the use of the torch.

On the other hand, when using the vaporizer configured as described above, the flame ejected from the vaporizer is formed long in front of the flame generating pipe (25).

This is because the vaporized gas ejected through the second ejection pipe is initially diffused and mixed with the primary air while contacting the inner surface of the flame generating pipe 25 and then ejected in front of the flame generating pipe 25 in an elongated shape. .

Therefore, the flame is generated without being in contact with the front of the flame generating tube (25). Therefore, as the flame is not in direct contact with the front of the flame generating tube 25, the front of the flame generating tube 25 can be prevented in advance from being damaged such as oxidation or cracking and deformation due to heat.

On the other hand, Figure 6 shows another embodiment of the discharge means according to the present invention, the discharge means 22 is formed in the connecting body 21 in communication with the gas supply pipe 11 and the inner cap The liquefied butane gas is blown into the collecting space 231, which is the inside of 23, and a blowout hole 223 having a reducing passage 224 is formed in the middle to generate a venturi effect.

Therefore, when the reduction passage 224 is formed in the ejection hole 223 as described above, the venturi effect is generated when the liquefied coal gas passes, thereby increasing the flow rate of the liquefied butane gas passing through the ejection hole 223. Therefore, the speed of the liquefied butane gas ejected from the ejection hole 223 is faster, the collision speed with the front plate constituting the inner cap 23 is faster.

In other words, if the collision speed of the front plate is increased, the diffusion and scattering effect of the liquefied butane gas is maximized, and thus the initial vaporization amount of the liquefied butane gas can be increased, thus preventing the incomplete combustion of the mixed gas during the initial ignition. This can be prevented in advance.

In addition, the front of the ejection hole 223 may be further provided with a front projection nozzle tube 225 to further enhance the impact effect with the front plate constituting the inner cap (23).

In addition, Figure 7 shows another embodiment of the discharge means according to the invention, the discharge means 22 is formed in the connection body 21 in communication with the gas supply pipe 11 and the inner Liquefied butane gas is ejected to the collecting space 231 which is the inside of the cap 23, and in the middle includes a blowing hole 223 is provided with a reducing passage 224 to generate a venturi effect, the blowing hole 223 Liquefied butane gas is formed in front of the stagnant space 227 and the front of the gas so that the liquefied butane gas is injected in a strong pressure on the inside of the front plate of the inner cap (23). It characterized in that it further comprises a front projection nozzle pipe 226 consisting of a blowing hole 228 for ejecting.

Therefore, when the liquefied butane gas passes through the spouting hole 223, the flow rate of the liquefied butane gas is increased through the venturi effect while passing through the narrowing passage 224 formed in the middle, and the liquefied gas is ejected from the spouting hole 223. Butane gas is stagnant in the stagnant space 227 is ejected through a small diameter blower hole 228.

Therefore, the speed of the liquefied butane gas is to increase the collision speed with the front plate constituting the inner cap (23).

That is, when the collision speed of the front plate is increased, the diffusion and scattering effect of the liquefied butane gas is maximized, and thus the initial vaporization amount of the liquefied butane gas can be increased, thus preventing the ungasification of the mixed gas during the initial ignition and thus incomplete combustion. The phenomenon can be prevented in advance.

The present invention as described above, by preventing the incomplete combustion of the flame, such as sulfur salts, backfire, lifting, tumbling during the initial ignition, the effect of preventing the occurrence of a fire around the torch due to incomplete combustion during the initial ignition There is.

In addition, by expanding the screen area to the maximum to prevent incomplete combustion of the ejected gas in advance, there is also an effect of preventing the heating portion from being unevenly heated due to incomplete combustion during use of the torch.

In addition, by preventing the flame from directly contacting the front of the flame generating tube, the front of the flame generating tube prevents damage such as oxidation or cracking due to heat, and also prevents deformation of the front of the flame generating tube due to heat. It also has the effect of allowing the torch to be used without damage for a long time.

While the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims (7)

A main body 1 including a gas supply pipe 11 connected to the liquefied butane gas cylinder 4 and including an adjustment valve 12 for adjusting the opening and closing degree of the gas supply pipe 11, and supply of the gas supply pipe 11. A torch composed of a vaporizer (2) connected to an end to vaporize liquefied butane gas, mixed with primary air and then ejected to produce a flame through ignition of the ignition means (3); The vaporizer 2, A connecting body 21 connected to a supply end of the gas supply pipe 11 and including a discharge means 22 for discharging the liquefied butane gas to the front; An inner cap 23 provided at the discharge side of the liquefied butane gas and having a liquefied butane gas collecting space 231 formed therein with a first ejection hole 232 therein; The vaporization space 241 is provided between the inner cap 23 and the inside of the front plate while being fixed to the connecting body 21 while being wrapped at regular intervals with the outer surface of the inner cap 23. An outer cap 24 having a second ejection hole 242 through which vaporized gas is ejected; At least one primary to wrap the circumference of the outer cap 24 and protrudes forward to conduct the heat of flame to the inner and outer caps 23 and 24 and to mix the primary air with the vaporized gas that is ejected. Flame generating pipe 25, the air inlet hole 251 is formed, Torch carburetor, characterized in that consisting of. The method of claim 1, wherein the first blowing hole 232, Torch vaporizer, characterized in that provided on the upper circumference of the inner cap (23). The method of claim 1, wherein the discharge means 22, It is formed in the interior of the connecting body 21 in communication with the gas supply pipe 11 is composed of a blowing hole 221 for ejecting the liquefied butane gas into the collecting space 231 to collide with the front plate of the inner cap 23 Torch carburetor characterized by. The method of claim 3, wherein the front of the jet hole 221, Torch carburetor, characterized in that the protruding nozzle tube 222 is further provided to increase the impact effect with the inner cap (23) front plate. The method of claim 1, wherein the discharge means 22, It is formed in the connecting body 21 in communication with the gas supply pipe 11 to eject the liquefied butane gas into the collecting space 231 to collide with the front plate of the inner cap 23 and generate a Venturi effect in the middle. Torch carburetor, characterized in that consisting of a blowout hole 223 is provided with a reduction passage (224). The method of claim 5, wherein the front of the jet hole 223, Torch carburetor, characterized in that the front projection nozzle tube 225 is further provided to increase the impact effect with the inner cap (23) front plate. The gas congestion space 227 and the front of the injection hole 223, the liquefied butane gas is injected into the front plate of the inner cap 23 at a high pressure. A vaporizer for a torch, characterized in that the front projection nozzle tube 226 is formed in the blower holes 228 to eject the liquefied butane gas at a high speed.

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