KR100446331B1 - Gas burner - Google Patents

Abstract

The present invention is to achieve a more stable combustion efficiency by applying a structure in which the fuel gas and air is mixed in a double, the flame is formed long and strong and can be applied to various fields, the present invention relates to the outside air to the interior space The first and second air supply holes formed at predetermined positions on the outer circumferential surface thereof so that the first and second air supply holes are formed, and the first reduction portion and the first reduction part formed by reducing the respective inner diameters from the first and second air supply ports toward the front side. A burner casing provided with a first mixing chamber and a second mixing chamber, each having a secondary reduction portion, each inner diameter being constant from each rear side of the first reduction portion and the second reduction portion; A gas supply pipe coupled to the rear end side of the burner casing to supply fuel gas from the fuel gas supply source to the interior of the burner casing, and having a gas injection body on the front end side to inject the fuel gas into the burner casing at high speed; A stabilizer provided at the front end side of the burner casing, the stabilizer having a larger diameter than the front end of the burner casing, and having a nozzle portion whose inner diameter is reduced at the front end; It is provided on the rear side of the stabilizer and includes an ignition plug that generates a flame by burning the mixed gas introduced into the stabilizer as power is supplied.

Description

Gas burner

The present invention relates to a gas burner, and more particularly, to a gas burner by applying a structure in which gas and air are mixed in a double, to achieve more stable combustion, the flame is formed long and strong and can be applied to various fields.

In general, a gas burner is an apparatus for economically burning gas to obtain a light source, a heat source, and the like, and is mainly used for a domestic gas stove, an incinerator, a boiler, a heating device, a furnace, or a high temperature reactor.

As fuel used in such a gas burner, butane, propane, and hydrocarbon generated gas produced by gasification of organic matter such as commercial or general household waste have been used. There is a tendency to use natural gas which is a pollution-free fuel. Such natural gas is inexpensive, combustible, and does not generate pollutants, and thus has great advantages as a fuel for gas burners.

On the other hand, such a gas burner is stable in its combustion efficiency, and if the flame length of the burner is long and strong, it can be applied to various fields such as an after burner, an incinerator, a boiler, and a high temperature reactor of a rocket engine.

The present invention has been made in view of the above, and a double mixed structure of air and fuel gas achieves a more stable combustion efficiency and at the same time provides a gas burner that is long and strong flame applicable to various applications There is a purpose.

In another aspect, the present invention is to provide a gas burner that can be adjusted to the desired performance by changing the area of the gas injection nozzle or air inlet according to the use by configuring each component to be detachably coupled.

1 is an exploded perspective view showing a gas burner according to an embodiment of the present invention.

Figure 2 is a cross-sectional view of the combination of the gas burner according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: burner casing 20: stabilizer

30: spark plug 40: gas supply pipe

50: gas spray

The present invention for achieving the above object, the first and second air supply port formed in a predetermined position on the outer circumferential surface so that the outside air flows into the inner space, the first and second air supply A first mixing chamber and a first reduction chamber formed with the respective inner diameters reduced from the spherical side toward the front side; and the first reducing chamber and the second reducing portion each having a constant inner diameter from each rear side thereof. A burner casing having a mixing chamber; A gas supply pipe coupled to the rear end side of the burner casing to supply fuel gas from the fuel gas supply source to the interior of the burner casing, and having a gas injection body on the front end side to inject the fuel gas into the burner casing at high speed; A stabilizer provided at the front end side of the burner casing, the stabilizer having a larger diameter than the front end of the burner casing, and having a nozzle portion whose inner diameter is reduced at the front end; It is provided on the rear side of the stabilizer, and includes a spark plug for generating a flame at the nozzle portion of the stabilizer by burning the mixed gas introduced into the stabilizer as the power is supplied.

Preferably, the burner casing consists of a plurality of case bodies detachably joined.

Preferably, the first and the second air supply port is formed with a plurality of slit-shaped grooves spaced apart at predetermined intervals in the circumferential direction on the outer circumferential surface of the burner casing.

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

1 and 2 show a gas burner according to one embodiment of the invention.

As shown, the gas burner of the present invention is combined with the burner casing (10) and the rear end side of the burner casing (10) and the burner casing (10) is properly mixed with the fuel gas and air flowing into the interior of the burner casing ( 10, a gas supply pipe 40 for supplying fuel gas to the inside, a stabilizer 20 coupled to the front end side of the burner casing 10, and a spark plug 30 coupled to one side of the stabilizer 20. ).

The burner casing 10 has a tubular shape, a stabilizer 20 is installed at the front end thereof, and a gas supply pipe 40 for supplying fuel gas in a concentric manner at the rear end thereof is installed.

The gas supply pipe 40 has a rear end of the burner casing 10 (that is, the first case body in the present embodiment described later) in order to supply fuel gas from the fuel gas supply source to the inside of the burner casing 10. 11)) is installed on the side. The gas supply pipe 40 has a fuel gas injector 50 on its front end for more efficient supply of fuel gas.

On the other hand, in the present embodiment, the burner casing 10 is composed of a plurality of divided assemblies are detachably coupled. First, the gas supply pipe 40 described above is separable by the first case body 11 provided on the rear end side of the concentric line and the coupling member 60 on the front end side of the first case body 11. The second case body 12 coupled to each other, the third case body 13 disposed on the outer side of the first and second case bodies 11 and 12 coupled by the coupling member 60, and The fourth case body 14 detachably coupled to the inner side of the front end of the third case body 13 and the fifth case body 15 detachably coupled to the front end side of the fourth case body 14. Is made of.

The first case body 11 has a first air supply port 11a on its outer circumferential surface for supplying external air. The first air supply port 11a is preferably made of a plurality of slit-shaped grooves formed spaced at predetermined intervals. The predetermined portion on the inner circumferential surface of the first case body 11 is formed with a first reduction portion 11b in which the inner diameter is reduced to the front side.

The second case body 12 is coupled by a separate coupling member 60 to the front end side of the first case body 11, and the first reduction of the first case body 11 on the inner side surface thereof. A first mixing portion 12a having an internal diameter constant from the front end of the portion 11b is provided.

As described above, the third case body 13 may be detachably coupled to an outer surface of the coupling member 60 for coupling the first and second case bodies 11 and 12 to communicate with each other. The second air supply port 13a is provided on the outer circumferential surface thereof. The second air supply port 13a is preferably formed with a plurality of slit-shaped grooves spaced apart.

The fourth case body 14 is detachably coupled to the front end side of the third case body 13, and a second reduction portion 14a having an inner diameter that is reduced to the front side is formed on the inner side thereof.

The fifth case body 15 is coupled to the front end side of the fourth case body 14, and a second mixing chamber 15a having a constant inner diameter is formed therein.

The burner casing 10 formed by the detachable coupling of the first to fifth case bodies 11, 12, 13, 14, and 15 is mutually coupled to each case body 11, 12, 13, 14, and 15. By forming the threaded portion on the portion, it may be fastened separably from each other. Each of the case bodies 11, 12, 13, 14, and 15 can be separated from each other by varying the area of the injection nozzle or the air inlet according to the use, thereby achieving various combustion performances.

The stabilizer 20 is threaded on the rear end side thereof and fastened on the threaded portion formed on the front end of the burner casing 10 (that is, the front end of the fourth case body 14 in this embodiment). . The diameter of such a stabilizer 20 is formed larger than the front end of the burner casing 10, and the nozzle 20a which the inner diameter is reduced is formed in the front end side.

The spark plug 30 is coupled to the coupling hole 20b formed on the rear side of the stabilizer 20 described above.

Hereinafter, the operation and effects of the gas burner of the present invention configured as described above will be described in detail.

First, when fuel gas, such as natural gas, butane gas, or propane gas, is supplied to the gas supply pipe 40, fuel gas is injected at a high speed from the gas injector 50 of the gas supply pipe 40, and such fuel gas is injected. After the outside air flows in from the primary air supply port 11a formed on the outer circumferential surface of the first case body 11 of the burner casing 10 according to the speed, the air supplied from the primary reduction part 11b is supplied. The flow velocity of is rapidly advanced, and the fuel gas and the air are rapidly mixed in the primary mixing chamber 12a of the second case body 12 to form a mixed gas.

Next, after the outside air flows back into the burner casing 10 from the second air supply port 13a formed on the outer circumferential surface of the third case body 13, the second contraction of the fourth case body 14 is reduced. As the flow velocity of the outside air introduced from the unit 14a is rapidly progressed again, the mixed gas and air are mixed again in the second mixing chamber 15a of the fifth case body 15.

The mixed gas is supplied to the stabilizer 20, and in this case, the diameter of the stabilizer 20 is larger than the burner casing 10, so that the flow rate of the supplied mixed gas is lowered and the pressure of the mixed gas supplied is increased. Done. This is because the flame is easily extinguished when the propagation speed of the flame is larger than the flow rate of the mixed gas supplied, thereby preventing the waste of fuel and the unstable combustion.

Next, as voltage is applied to the spark plug 30 provided on the rear side of the stabilizer 20, the mixed gas in the burner casing 10 is burned by the spark plug 30 to generate flame. The flame thus generated passes through the nozzle 20a formed on the front end side of the stabilizer 20, and the flow velocity thereof is accelerated and injected.

On the other hand, as the spark plug 30 is installed in a region (region V in which vortex is formed) having a temperature relatively lower than that of the nozzle 20a side of the stabilizer 20, the spark plug ( 30) is characterized by stable combustion without damage. Further, even after the ignition, even if the spark plug 30 is turned off, combustion is stably performed. Therefore, the spark plug 30 may be turned on only at the time of ignition.

As described above, the present invention achieves a more stable combustion efficiency with a double mixed structure of air and fuel gas, and at the same time, the flame is long and strong, so that the present invention can be applied to various applications.

In addition, the present invention is configured to be detachably coupled to each component according to the use, there is an advantage that the user can achieve the desired combustion performance by changing the area of the gas injection nozzle or air intake.

In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It may be changed.

Claims (3)

A gas burner which achieves stable combustion efficiency and forms a long and strong flame, And a first and a second air supply port formed at predetermined positions on the outer circumferential surface to allow the outside air to flow into the inner space, and the inner diameters of the first and second air supply ports are respectively reduced to the front side. A burner casing having a first mixing chamber and a second mixing chamber, the burner casing having a first mixing chamber and a second mixing chamber having internal diameters constant from each rear side of the first reduction portion and the second reduction portion; It is coupled to the rear end side of the burner casing to supply fuel gas from the fuel gas supply source into the burner casing, and has a gas injection body on the front end side to inject the fuel gas into the burner casing at high speed. A gas supply pipe; A stabilizer provided at the front end side of the burner casing, having a diameter larger than the front end of the burner casing, and having a nozzle portion having a reduced inner diameter at the front end; And a spark plug provided on a rear side of the stabilizer and configured to burn a mixed gas introduced into the stabilizer as power is supplied to generate a flame. The gas burner of claim 1, wherein the burner casing is formed of a plurality of case bodies detachably coupled to each other. The gas burner according to claim 1, wherein the first and second air supply ports are provided with a plurality of slit-shaped grooves spaced at predetermined intervals in the circumferential direction on the outer circumferential surface of the burner casing.