KR20070053916A - Sealed double burner - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas oven range, and more particularly, to a shielded double burner that reduces the number of parts, thereby shortening the manufacturing process time and reducing manufacturing costs.

Shielded double burner of the gas oven range according to the spirit of the present invention for achieving the above object is a nozzle holder; An internal burner combustion chamber extending upwardly of the nozzle holder and having a lower opening to supply primary air; An outer burner combustion chamber formed outside the inner burner combustion chamber; A burner head formed on the nozzle holder; A burner cap mounted above the combustion chamber; A top plate on which the nozzle holder and the burner head are supported; A boss extending upward of the nozzle holder to support the top plate; And a burring portion formed on the top plate to support the inner burner combustion chamber and / or the outer burner combustion chamber.

By the shield double burner of the gas oven range as described above, the internal burner combustion chamber is integrally formed in the nozzle holder, and the external burner combustion chamber is integrally formed in the burner head to perform a conventional burner body, thereby reducing the number of parts. By reducing the manufacturing process time and the manufacturing cost is reduced. In addition, by allowing the air to be supplied in a 360 degree direction between the burner head and the top plate, there is an advantage that the secondary air is stably secured.

Gas oven range, shield burner, primary air, secondary air

Description

Sealed double burner

1 is a perspective view showing the configuration of a general gas oven range.

2 is a cross-sectional view of a shield double burner of the gas oven range according to the spirit of the present invention.

3 is an exploded view of the shield double burner of the present invention.

Figure 4 is a cross-sectional view of the shield double burner of the present invention showing the supply path of the primary air, secondary air.

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

  6: top plate 10: outer burner cap

 11: internal burner cap 20: burner head

 41: side nozzle 42: center nozzle

 25: external burner combustion chamber 45: internal burner combustion chamber

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas oven range, and more particularly, to a shielded double burner that reduces the number of parts, thereby shortening the manufacturing process time and reducing manufacturing costs.

In general, a gas oven is a gas oven and a gas oven that combines food into a cavity and uses a radiant heat and convection heat to cook food.

1 is a perspective view showing the configuration of a general gas oven range.

Referring to FIG. 1, a top burner portion 2 is installed at an upper portion of the gas oven range, an oven 4 is disposed at a lower portion thereof, and a grill 3 is disposed between the top burner portion 2 and the oven 4. This is installed. In detail, the top burner unit 2 is a portion for cooking food using a flame generated when a gas is burned. In addition, the oven 4 is a portion for cooking food mainly by using tropical gas of heat of gas combustion, and the grill 3 is a portion for cooking food such as fish or meat mainly using radiant heat. In addition, the back guard portion 5 which exhausts the smoke generated in the oven 4 and the grill 3 and prevents the frying of the soup generated in the top burner portion 2 is formed on the rear surface of the top burner portion 2. Is installed.

On the other hand, the top burner unit 2 is provided with a plurality of top burners 1 for generating a flame by burning gas. And, the top burner 1 is a bunsen burner consisting of a burner body, a burner head, a burner cap. In detail, when the gas ejected from the nozzle enters the mixing tube, a part of the air necessary for combustion (called 'primary air') is sucked into the mixing tube, where the gas and air are well mixed, and the mixed gas It is a burner that burns in flames and inhales new air (called 'secondary air') around the flame and burns it completely.

On the other hand, combustion requires flammable gas, an ignition source, and oxygen as three major elements. In addition, optimum thermal power can be obtained when the three elements are properly mixed. In addition, when the amount of combustible gas is excessive, when the ignition source is weak during initial ignition, when the supply pressure is faster than the combustion speed, and the lifting phenomenon occurs, when the primary and secondary air amounts are insufficient, it may be incomplete combustion.

However, the existing shield burner secures the primary air passage and the secondary air passage by dividing the space under the burner head. This is a structure in which the quantity of primary air and secondary air required for combustion is supplied with a limited amount, and high output is difficult to be realized.

In particular, since the combustion chamber of the inner burner and the outer burner is integrally formed with the burner head, the inflow space of the secondary air is limited, so that the supply of the secondary air is not smooth. Therefore, there is a problem in that a yellow salt (Yellow Tip) occurs due to the lack of secondary air during combustion.

In addition, as the number of parts of the burner structure increases, there is a problem in that a work process time generated during assembly of the parts increases, and thus the manufacturing cost increases.

In order to solve the above problems, the internal burner combustion chamber is integrally formed in the nozzle holder, and the external burner combustion chamber is integrally formed in the burner head, thereby reducing the number of parts and shortening the manufacturing process time. It is an object to provide a shielded double burner of a gas oven range which is reduced.

In addition, an object of the present invention is to provide a shielded double burner of a gas oven range by allowing air to be supplied in a 360 degree direction between the burner head and the top plate to maximize the inflow of secondary air.

Shielded double burner of the gas oven range according to the spirit of the present invention for achieving the above object is a nozzle holder; An internal burner combustion chamber extending upwardly of the nozzle holder and having a lower opening to supply primary air; An outer burner combustion chamber formed outside the inner burner combustion chamber; A burner head formed on the nozzle holder; A burner cap mounted above the combustion chamber; A top plate on which the nozzle holder and the burner head are supported; A boss extending upward of the nozzle holder to support the top plate; And a burring portion formed on the top plate to support the inner burner combustion chamber and / or the outer burner combustion chamber.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments supported by the accompanying drawings, and those skilled in the art who understand the spirit of the present invention can add, change, delete, and remove other embodiments that fall within the scope of the same idea. It may be easily proposed by addition.

2 is a cross-sectional view of the shield double burner of the gas oven range according to the spirit of the present invention, Figure 3 is an exploded view of the shield double burner of the present invention.

2 and 3, the shield double burner of the present invention covers the nozzle holder 40, the burner head 20 assembled on the nozzle holder, and the internal burner combustion chamber 45 of the nozzle holder 40. An inner burner cap 11 and an outer burner cap 10 covering the outer burner combustion chamber 25 of the burner head 20. In addition, the inner burner combustion chamber 45 and the outer burner combustion chamber 25 may be penetrated, supported, and fixed to the top plate 6. In addition, it is noted that the outer burner cap 10 and the inner burner cap 11 may be integrally formed.

In detail, the internal burner combustion chamber 45 is integrally formed on the nozzle holder 40. In addition, the lower part of the internal burner combustion chamber 45 is not completely sealed, and only the left and right portions are integrally formed with the upper part of the nozzle holder, and most of them are open. In addition, primary air may be supplied to the internal burner combustion chamber 45 through an open portion under the internal burner combustion chamber 45. In addition, the internal burner combustion chamber 45 is substantially cylindrical and extends upward. The inner burner combustion chamber 45 is formed of a predetermined tube, and the tube is formed of a venturi tube that narrows from the lower side to the upper side and gradually widens again at a predetermined height. The inner burner cap 11 is covered with an upper end of the inner burner combustion chamber 45. In addition, an inner burner flame hole 110 is formed at predetermined intervals on a lower circumference of the inner burner cap 11. Then, the mixed gas in which fuel gas and air are mixed is discharged through the internal burner flame hole 110, and the discharged mixed gas is ignited by an ignition source to form a flame.

Meanwhile, predetermined screw grooves for inserting and mounting side nozzles 41 are formed on left and right sides of the upper surface of the nozzle holder 40, and predetermined screw grooves for inserting and mounting a central nozzle 42 in the center thereof. Is formed. In addition, a screw thread corresponding to the screw groove is formed under the nozzles 41 and 42 so that the side nozzles 41 are located at the left and right sides of the top surface of the nozzle holder 40, and the central nozzles 42 are screwed at the center thereof. Combined. A boss 43 is formed between the left and right side nozzles 41 and the center nozzle 42. In addition, the boss 43 is formed on the upper left and right sides of the nozzle holder 40 and is assembled by the top plate 6 and the fastening member to serve to fix the position of the nozzle holder 40. The fastening member is preferably composed of a bolt and a nut. In addition, the boss 43 also serves to prevent deformation of the top plate 6 and to support the top plate 6.

Meanwhile, the top plate 6 is further provided with burrings 61 and 62 through which the outer burner combustion chamber 25 and the inner burner combustion chamber 45 pass, and the positions of the combustion chambers 25 and 45 are fixed. . In detail, the external burner 61 allows the external burner combustion chamber 25 to penetrate and fix the position of the external burner combustion chamber 25. In addition, the outer burring 61 is formed on the upper left and right sides of the top plate 6 corresponding to the outer burner combustion chamber 25. In addition, the inner burner combustion chamber 45 penetrates, and an inner burring 62 having a fixed position is formed at the center of the top plate 6. In addition, the strength of the top plate 6 is reinforced by the burring (61, 62) structure.

On the other hand, the outer burner combustion chamber 25 is integrally formed on the lower left and right sides of the burner head 20 so as to be placed above the top plate 6. In addition, the external burner combustion chamber 25 is also formed of a predetermined tube, and the tube is composed of a venturi tube narrowing from the lower side to the upper side and gradually widening again at a predetermined height. In addition, an outer burner flame hole 210 is formed at a predetermined interval on an upper outer side of the burner head 20. In addition, a cylindrical tube is formed at the center of the burner head 20 to secure a space in which the secondary air can be smoothly supplied between the outer surface of the inner burner combustion chamber 45. Then, a predetermined recessed circular passage 211 is formed between the upper end of the inner surface of the cylindrical tube of the burner head 20 and the salt hole 210 of the outer burner. In addition, an outer burner cap 10 is covered above the passage 211 so that a mixed gas of air and fuel gas supplied from the outer burner combustion chamber 25 can be discharged only through the outer burner flame hole 210. Is formed.

Meanwhile, a separate gap is formed between the top of the top plate 6 and the bottom of the burner head 20. The gap is integrally formed above the top plate 6 or below the burner head 20 so that sufficient air is supplied between the top of the top plate 6 and the bottom of the burner head 20. It is desirable to allow a predetermined space to be secured. And it turns out that the gap can be manufactured as a separate component.

4 is a cross-sectional view of the shield double burner of the present invention showing a supply path of primary air and secondary air.

In FIG. 4, the black arrow indicates the flow of secondary air, and the white arrow indicates the flow of primary air. In detail, looking at the supply path of the primary air, the primary air is introduced along the gas pipe connected to the nozzle holder 40 through the open portion of the back of the gas oven range first.

In addition, a part of the introduced primary air enters into the external burner combustion chamber 25 along the left and right side nozzles 41. At this time, a part of the entered primary air is mixed with fuel gas injected from the left and right side nozzles 41 and enters into the external burner combustion chamber 25. Then, the gas mixture of the entered primary air and fuel gas reaches the external burner cap 10 through the venturi tube of the external burner combustion chamber 25 and is discharged through the external burner flame hole 210. In detail, looking at the mechanism of the venturi tube, after the mixed gas of the primary air and fuel gas enters from the lower side of the external burner combustion chamber 25 to the point where the width of the tube is narrowed, the mixture at the narrowed point The flow rate of the gas is faster and relatively lower than the surrounding pressure, resulting in suction force from bottom to top. And again, the width of the tube gradually widens and the mixed gas is diffused. In addition, the principle that the negative pressure is generated in the venturi tube is used to facilitate the discharge of the fuel gas of the left and right side nozzles 41, and the fuel gas and the primary air can be better mixed. Finally, the diffused mixed gas is discharged through the outer burner flame hole 210 after reaching the outer burner cap 10.

Meanwhile, another part of the primary air entering the upper side nozzle 41 passes through the left and right side nozzles 41 and enters the inner burner combustion chamber 45 via the upper surface of the nozzle holder 40. . In detail, since it starts to move from the upper side of the narrow side nozzle 41 to the upper surface of the nozzle holder 40 is widened, the primary air is easily diffused from the upper surface. In addition, the lower part of the internal burner combustion chamber 45 is not completely sealed, and only the left and right portions are integrally formed with the upper side of the nozzle holder, and most of them are open. In addition, primary air may be supplied to the internal burner combustion chamber 45 through an open portion under the internal burner combustion chamber 45. In addition, the primary air is moved along the outer surface of the central nozzle 42 to the upper side of the central nozzle 42 on the left and right sides of the center nozzle 42. Then, the fuel gas discharged from the central nozzle 42 and the reached primary air are mixed to form a mixed gas. The mixed gas rises to the point where the width of the tube is narrowed after the mixed gas of the primary air and the fuel gas enters the lower side of the internal burner combustion chamber 45, and the flow rate of the mixed gas is increased at the narrowed point. As a result, the suction force is lowered from the lower side to the upper side. And again, the tube becomes wider and spreads. The diffused mixed gas reaches the inner burner cap 110 and is discharged through the inner burner flame hole 110.

On the other hand, looking at the supply path of the secondary air, firstly, the secondary air enters 360 degrees through the lower outer side of the burner head 20 and the upper outer side of the top plate (6). The secondary air is supplied from the lower portion of the burner head 20 and the inner burner combustion chamber 45 to the upper portion, and the supplied secondary air is supplied around the flame generated in the inner burner flame hole 110. Used. The secondary air is then supplied continuously until the burner is extinguished after the initial ignition.

As described above, the shielded double burner structure of the present invention eliminates the conventional burner body structure, thereby shortening the manufacturing process time and reducing the manufacturing cost according to the number of parts.

By the shield double burner of the gas oven range as described above, the internal burner combustion chamber is integrally formed in the nozzle holder, and the external burner combustion chamber is integrally formed in the burner head to perform a conventional burner body, thereby reducing the number of parts. By reducing the manufacturing process time and the manufacturing cost is reduced.

In addition, by allowing the air to be supplied in a 360 degree direction between the burner head and the top plate, there is an advantage that the secondary air is stably secured.

Claims (7)

Nozzle holder; An internal burner combustion chamber extending upwardly of the nozzle holder and having a lower opening to supply primary air; An outer burner combustion chamber formed outside the inner burner combustion chamber; A burner head formed on the nozzle holder; A burner cap mounted above the combustion chamber; A top plate on which the nozzle holder and the burner head are supported; A boss extending upward of the nozzle holder to support the top plate; And And a burring portion formed on the top plate to support the inner burner combustion chamber and / or the outer burner combustion chamber. The method of claim 1, Shield double burner wherein the inner burner combustion chamber and / or the outer burner combustion chamber is formed of a venturi tube. The method of claim 1, The inner burner combustion chamber is formed integrally with the nozzle holder. The method of claim 1, The lower portion of the inner burner combustion chamber is a shield double burner having one side integrally formed with the nozzle holder so that the primary air flows in. The method of claim 1, Shield double burner including an external burner combustion chamber extending to the lower side of the burner head. The method of claim 1, Shield double burner including a gap that provides a gap between the top plate and the contact portion of the burner head. The method of claim 1, Shield double burner is integrally formed with a burner cap mounted above the inner burner combustion chamber and the outer burner combustion chamber.

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