BACKGROUND ART A burner is an apparatus that emits gaseous, liquid and pulverulent fuels, such as gas, oil and pulverulent body, at high speed. Generally, large-sized burner for industrial use preheats gas or air using the heat of disused gas. At this point, a burner for burning diesel oil, kerosene, etc., is called aft oil burner, which functions as a kind of sprayer that emits oil like a fog using compressed air or high-pressure steam.

Fuels emitted from the burner are ignited through an igniter such as a sparking plug to generate high-temperature sparks. The high-temperature sparks are widely used to incinerate/fuse industrial wastes in many industrial fields.

However, bunker C oil which is widely used as the burner fuel is restricted in its use because of increasingly serious environmental pollution. Although gas fuel causing

less pollution than oil fuel is recommended, there is a tendency for people to be reluctant to use the gas fuel since it is expensive.

Particularly, since incinerators or fusion furnaces used in industrial fields are large-sized, fuel expenses are heavy. As a result, competitiveness is lowered due to an increase of manufacturing cost.

Accordingly, the need of alternative energy has been emphasized, and enormous expenses have been invested in the development of the alternative energy, such as solar heat, wind force and subterranean heat. However, remarkable advance has not been made and the alternative energy has been merely used as an assistant heating energy. Therefore, it is no exaggeration to say that there is no alternative energy for industrial use in which a large amount of energy is needed.

As one of methods for solving the above problems, the use of Brown gas is recently highlighted.

Brown gas is a gas obtained by electrolysis of water and it is a mixed gas of hydrogen and oxygen in the ratio of 2: 1. Generally, if water is electrolyzed, hydrogen and oxygen are generated in a negative pole and a positive pole, respectively. At this point, Brown gas can be obtained by simultaneously collecting the two gases, not by separately collecting them.

Unlike general gases, Brown gas has a peculiar

property that causes an implosion phenomenon during the combustion thereof. In other words, an explosion phenomenon does not occur during the combustion of Brown gas. Instead, flames are inwardly gathered to thereby form a focus and make surroundings vacuous.

In other words, the flames of Brown gas means that the implosion state is kept on. Accordingly, the flames of Brown gas forms a pinpoint flame such that the flames are elongated. Although regenerative heat is low, even heat- resistant ceramic material can be fused at the pinpoint portion. Like this, the flames of Brown gas have a strong heating power enough to perform a flame drilling.

Additionally, the flames of Brown gas have a peculiar property that hydrogen and oxygen of atomic and molecular states are reacted. Since hydrogen atom and oxygen atom are penetrated into an atomic nucleus of a heating target material, it produces the result that the material heated by a thermonuclear reaction due to hydrogen and oxygen is heated by much hotter frames than those occurring when gas alone is burnt in air.

Further, since thermic rays are not radiated outwardly, there is no loss of energy which is caused by a radiant heat, such that excellent energy efficiency is obtained. Since Brown gas itself contains oxygen, an additional oxygen supply is unnecessary during the combustion of Brown gas.

Furthermore, there is no pollution problem since only water

is generated as combustion products.

Since Brown gas having these peculiar properties consists of the most combustible hydrogen and the oxygen acting as an assistant combustion material, the burner using the Brown gas can obtain great gain in view of efficiency and cost.

In the related art, however, Brown gas only burner that uses Brown gas, specifically a large amount of Brown gas, has not been developed in reality.

DISCLOSURE OF THE INVENTION Accordingly, the present invention is directed to a Brown gas only burner that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.

An object of the present invention is to provide a Brown gas only burner in which combustion efficiency is improved. In the Brown gas only burner, a large amount of Brown gas is introduced and discharged at high speed, some portion of the burner is inserted into an inside of incinerator or fusion furnace, and a cooling part for cooling a central passage and an outlet is installed.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and

other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

To achieve the object, there is provided a Brown gas only burner, which comprises: a Brown gas inlet through which Brown gas is introduced; a Brown gas outlet through which the Brown gas is discharged at high speed via a central passage extended from the Brown gas inlet, in which the Brown gas outlet has a diameter smaller than the Brown gas inlet and the central passage ; a cooling passage installed in an upper portion of the central passage to cool the Brown gas outlet and the central passage ; and a housing enclosing the central passage, the Brown gas outlet and the cooling passage.

Here, the Brown gas inlet is formed in a rotated shape with one or more turns. The cooling passage installed in the upper portion of the central passage is extended to the front of the Brown gas outlet, and water or air introduced through the cooling passage is dispersedly supplied to an inside of the housing to cool the central passage and the Brown gas outlet and discharged through an outlet formed in a lower portion of the housing.

Additionally, an end portion of the Brown gas outlet is formed in a streamlined shape so as to prevent a whirlpool of the Brown gas discharged through the outlet. The housing has an outer wall processed by ceramic coating, metal or nonmetal

plating.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

In the drawings: FIG. 1 is a longitudinal sectional view of a Brown gas only burner in accordance with the present invention ; and FIGs. 2A and 2B are sectional views of specific portions of the Brown gas only burner shown in FIG. 1, taken along the lines A-A'and B-B', respectively.

BEST MODE FOR CARRYING OUT THE INVENTION Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a longitudinal sectional view of a Brown gas only burner in accordance with the present invention.

Referring to FIG. 1, the Brown gas only burner of the

present invention includes: a Brown gas inlet 10 through which a large amount of Brown gas is introduced ; a central passage 12 through which the introduced Brown gas passes ; a Brown gas outlet 14 through which the Brown gas is discharged at high speed, in which a diameter of the Brown gas outlet 14 is smaller that that of the Brown gas inlet 10 and that of the central passage 12; a cooling passage 16 installed in an upper portion of the central passage 12 to cool the central passage 12 and the Brown gas outlet 14 ; and a housing 18 enclosing the central passage 12, the Brown gas outlet 14 and the cooling passage 16.

Here, the housing 18 is formed of stainless metal, and an inside of the housing 18 is empty, except for the central passage 12, the Brown gas outlet 14 and the cooling passage 16, which are installed within the housing 18.

Since the Brown gas only burner constructed as above uses only Brown gas as a burner fuel, a pollution problem can be solved. Also, since thermic rays are not radiated outwardly, there is no loss of energy which is caused by a radiant heat, such that excellent energy efficiency is obtained. In addition, since Brown gas itself contains oxygen, an additional oxygen supply is unnecessary during the combustion of Brown gas.

Further, an apparatus for generating and supplying a large amount of Brown gas is needed when using the Brown gas only burner to incinerate/fuse industrial wastes in many

industrial fields. Meanwhile, this can be solved using a gas generator disclosed in Korean Patent Application No. 10-2002- 0006146 entitled"BROWN GAS GENERATOR", which was filed by the present applicant.

An operation of the Brown gas only burner will be described below.

First, a large amount of Brown gas is introduced through the Brown gas inlet 10 installed in the Brown gas only burner. At this point, the Brown gas inlet 10 is formed in a rotated shape with one or more turns for the purpose of introducing the Brown gas at constant speed.

In other words, even when the introducing speed of the Brown gas becomes abruptly high, passing distance and friction occurring when the Brown gas passes through the Brown gas inlet 10 are increased due to the rotated shape of the Brown gas inlet 10 having one or more turns. As a result, the speed of the Brown gas is reduced to some extent such that speed and pressure are maintained constantly.

The large amount of Brown gas introduced through the Brown gas inlet 10 passes through the central passage 12 and is discharged through the Brown gas outlet 14.

At this point, a diameter of the Brown gas outlet 14 is smaller than that that of the Brown gas inlet 10 and that of the central passage 12 so as to discharge the Brown gas at high speed.

Here, Bernoulli's theorem is used when forming the

Brown gas outlet 14. According to the Bernoulli's theorem, if fluid (air or liquid) moves from a wide place to a narrow place, its flow velocity becomes faster. Additionally, as shown in FIG. 1, the end portion of the Brown gas outlet 14 is formed in a streamlined shape so as to prevent a whirlpool of the Brown gas discharged through the Brown gas outlet 14.

In other words, by forming the end portion of the Brown gas outlet 12 in the streamlined shape, an area whose pressure is relatively low can be eliminated. As a result, the flames generated by the Brown gas can be prevented from backfiring toward the Brown gas outlet 14.

The Brown gas discharged through the Brown gas outlet 14 at high speed is ignited by an igniter (not shown) such as a piezoelectric device, which is formed at an outside of the Brown gas only burner.

If the flames of the Brown gas are generated by the burner of the present invention, some portion of the burner is directly inserted into an inside of various kinds of combustion chambers or incinerator (not shown) or fusion furnace (not shown), thereby improving the efficiency of incineration or fusion in the inside of the incinerator or the fusion furnace.

Here, the inside of the incinerator or the fusion furnace is maintained at a high temperature. Therefore, by processing an outer wall of the housing 18 with ceramic

plating, metal or nonmetal plating, for example, nickel plating or nickel/chrome plating, the Brown gas only burner of the present invention can be tolerable to the high temperature of the incinerator or the fusion furnace and also prevent the housing from corroding due to a corrosive gas, thereby extending the life span of the burner.

Further, the central passage 12 and the Brown gas outlet 14, which are installed within the housing 18, should be cooled. According to the present invention, the central passage 12 and the Brown gas outlet 14 are cooled using the cooling passage 16, which is formed in an upper portion of the central passage 12.

At this point, the cooling passage 16 is extended to the front of the Brown gas outlet 14, and water or air introduced through the cooling passage 16 is dispersedly supplied to the empty space of the inside of the housing 18 to cool the central passage 12 and the Brown gas outlet 14, and then discharged through the outlet formed in a lower portion of the housing 18.

FIGs. 2A and 2B are sectional views of specific portions of the Brown gas only burner shown in FIG. 1, taken along the lines A-A'and B-B', respectively.

Specifically, FIG. 2A is a sectional view of an area in which the cooling passage is formed, taken along the line A-A', and FIG. 2B is a sectional view of an area in which the cooling passage is not formed, taken along the line B-B'.

Referring to FIG. 2A, the central passage 12 and the cooling passage 16 are installed within the housing 18 of the burner, and the other areas are empty. Additionally, referring to FIG. 2B, only the Brown gas outlet 14 extended from the central passage 12 is formed inside the housing of the burner.

A process of cooling the central passage 12 and the Brown gas outlet 14 using the cooling passage 16 will be described below with reference to FIGs. 1,2A and 2B.

First, water or air is introduced through an inlet hole 20 formed on a predetermined upper portion of the housing 18. In other words, the Brown gas only burner of the present invention can be a water-cooling type or an air- cooling type. At this point, the inlet hole 20 is connected to the cooling passage 16.

Accordingly, water or air which is introduced through the inlet hole 20 passes through the cooling passage 16 and dispersed throughout an inside of the housing 18, thereby cooling an inner wall of the housing 18, the central passage 12 and the Brown gas outlet 14.

At this point, the cooling passage 16 is extended to the front of the Brown gas outlet 14 for the purpose of cooling the Brown gas outlet 14 more effectively. The reason is that water or air is carried in a less heated state through the cooling passage 16 to the front of the Brown gas outlet 14 and directly cools the Brown gas outlet 14.

Accordingly, water or air which is introduced through the cooling passage 16 is dispersedly supplied to an inside of the housing 18 and thus cools the inner wall of the housing 18, the central passage 12 and the Brown gas outlet 14. Therefore, the Brown gas supply line (i. e. , the central passage 12) is protected from a high temperature of the outside of the burner, such that natural ignition and backfire are prevented when the Brown gas is supplied to the burner. Then, the water or air is discharged through an outlet hole 22 formed in a predetermined lower portion of the housing 18.

At this point, the outlet hole 22 is formed in an area facing the inlet hole 20 in up and down directions. It is desired that the outlet hole 22 be formed in a portion in which the Brown gas inlet 10 and the housing 18 are connected with each other.

INDUSTRIAL APPLICATION As described above, since the Brown gas only burner of the present invention uses a large amount of Brown gas as its fuel, environmental pollution is not caused originally.

Additionally, combustion efficiency can be improved since some portion of the burner is inserted into the incinerator or the fusion furnace. An overheating of the burner can be prevented by forming the cooling part in an inside of the burner, in which the cooling part functions to cool the

inserted portion of the incinerator or the fusion furnace and a portion in which the flames are generated due to the discharge of Brown gas.

While the present invention has been described and illustrated herein with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made therein without departing from the spirit and scope of the invention. Thus, it is intended that the present invention covers the modifications and variations of this invention that come within the scope of the appended claims and there equivalents.