KR100738696B1 - Sealed double burner - Google Patents

Abstract

The present invention relates to a gas oven range, and more particularly, to a shield double burner in which the combustion efficiency of the burner is improved by maximizing the inflow of air.

The shielded double burner may receive air near the edge of the burner head, and receive secondary air of the inner burner in the space between the burner head and the burner body. Therefore, there is an advantage that the secondary air can be sufficiently supplied.

In addition, the shield double burner integrally forms a combustion chamber of the internal burner on the burner body. Therefore, sufficient space is secured between the inner burner and the outer burner, so that various structures can be manufactured in design.

Gas oven range, shield burner, 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 according to the spirit 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.

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

Figure 6 is a plan 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>

 10: outer burner cap 11: inner burner cap

 20: burner head 30: burner body

 41: side nozzle 42: center nozzle

220: external burner combustion chamber 320: internal burner combustion chamber

330: chamber

The present invention relates to a gas oven range, and more particularly, to a shield double burner in which the combustion efficiency of the burner is improved by maximizing the inflow of air.

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, incomplete combustion may occur when the primary and secondary air amounts are insufficient.

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 order to solve the above problems, an object of the present invention is to provide a shield double burner of the gas oven range that can be maximized the inflow of external air supplied into the burner.

The present invention also relates to a shield double burner of a gas oven range in which air supplied to a burner is divided into a primary air side and a secondary air side so as to be smoothly supplied.

According to an aspect of the present invention for achieving the above object, a nozzle holder which is disposed a center nozzle and a side nozzle to which gas is supplied; A burner body disposed above the nozzle holder and having an internal burner combustion chamber corresponding to the central nozzle, and a chamber in which the side nozzles are accommodated and in communication with the internal burner combustion chamber; A burner head disposed above the burner body at a predetermined interval so that external air flows into the chamber, and a burner head having an external burner combustion chamber into which a portion of the air introduced from the chamber and a gas of the side nozzles are introduced; An outer burner cap disposed to cover the outer burner combustion chamber of the burner head to form an outer burner flame hole; And an inner burner cap disposed to cover the inner burner combustion chamber of the burner body to form an inner burner flame hole.
The inner burner combustion chamber and / or the outer burner combustion chamber may be a venturi tube that narrows from the lower end to the upper side and then widens again.
The burner head may be provided with a plurality of external burner combustion chambers, and a passage for communicating the plurality of external burner combustion chambers may be formed.
The chamber may be open to the internal burner combustion chamber side.

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 gas oven range according to the spirit of the present invention.

2 and 3, the shield double burner of the present invention covers the burner body 30, the burner head 20 assembled on the burner body, and the inner burner combustion chamber 320 of the burner body 30. An inner burner cap 11 and an outer burner cap 10 covering the outer burner combustion chamber 220 of the burner head 20.

In detail, the upper outer side of the burner body 30 is mounted on the upper portion of the gas oven range to form the same plane as the upper plate (6). In addition, a lower side of the burner body 30 is provided with a predetermined hole in which the side nozzles 41 can be inserted. In addition, a predetermined hole in which the upper center portion of the nozzle holder 40 is inserted is formed in the lower center portion of the burner body 30, and the center nozzle 42 is mounted in the center of the upper center portion of the nozzle holder 40. In addition, the nozzles 41 and 42 have screw threads formed on the lower side of the nozzle, and screw grooves corresponding to the screw threads are formed on the nozzle holder 40 and screwed together. In addition, a predetermined fixing is provided between the left and right side nozzles 41 and the center nozzle 42 in order to firmly assemble the burner body 30 and the nozzle holder 40 under the burner body 30. A hole may be formed, and a screw groove may be formed on an upper side of the nozzle holder 40 to be coupled by a separate fastening member. And the fastening member is preferably composed of a bolt and a nut.

On the other hand, the inner burner combustion chamber 320 is integrally formed in the upper central portion of the burner body (30). In addition, the internal burner combustion chamber 320 has a substantially cylindrical shape and extends upward. The inner burner combustion chamber 320 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 above the inner burner combustion chamber 320. 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 flame hole 110, and the discharged mixed gas is ignited by an ignition source to form a flame. In addition, a flame detection unit 34 is installed above the burner body 30 to detect a flame at a predetermined distance from the internal burner combustion chamber 310. In addition, the spark plug 35 penetrates and is mounted at a predetermined distance from the salt detecting unit 34.

On the other hand, the chamber 330 is formed on the left and right sides of the burner body 30 and the same plane as the upper surface of the burner body. In addition, the chamber 330 is accommodated at the lower end of the external burner combustion chamber 220, the lower left and right sides of the burner body 30 is extended to a predetermined length so that the primary air can be smoothly supplied, the upper portion is open Shape. The left and right side nozzles 41 are inserted into the lower side of the chamber 330.

On the other hand, the outer burner combustion chamber 220 is integrally formed on the lower left and right sides of the burner head 20 to be placed above the chamber 330. In addition, the external burner combustion chamber 220 is also formed of a predetermined tube, the tube is composed of a venturi tube narrowed gradually from the lower side to the upper side and gradually widened 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 internal burner combustion chamber 320. 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 220 can be discharged only through the outer burner flame hole 210. Is formed.

On the other hand, a separate gap (not shown) is formed between the upper portion of the burner body 30 and the lower portion of the burner head 20. The gap is integrally formed above the burner body 30 or below the burner head 20 so that sufficient air is supplied between the upper portion of the burner body 30 and the lower portion 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 the supply path of the primary air, Figure 5 is a cross-sectional view of the shield double burner of the present invention showing the supply path of the secondary air, Figure 6 is a primary air , A plan view of a shielded double burner of the present invention showing the supply path of secondary air together.

Looking at the supply path of the primary air with reference to Figure 4, first the primary air enters between the lower outer side of the burner head 20 and the upper outer side of the burner body (30). In addition, the entered primary air enters the lower portion of the burner body 30 through a passage led by the outer burner combustion chamber 220 and the burner body 30 through the left and right chambers 330 of the burner body. do. In addition, a part of the entered primary air enters into the external burner combustion chamber 220 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 220. In addition, the gas mixture of the primary air and the fuel gas may be discharged through the external burner flame hole 210 after reaching the external burner cap 10 through the venturi tube of the external burner combustion chamber 220. . 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 220 to the point where the width of the tube narrows, the mixing at the narrowing 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 internal burner combustion chamber 320 via the recessed portion of the nozzle holder 40. do. In detail, since it is moved to the recessed portion of the nozzle holder 40 which starts to move on the upper side of the narrow side nozzle 41 and becomes wider, the diffusion of the primary air is easily performed in the recessed portion. 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 320, 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 11 and is discharged through the inner burner flame hole 110.

Meanwhile, referring to FIGS. 5 and 6, the supply path of the secondary air, in FIG. 6, black arrows indicate the flow of secondary air, and white arrows indicate the flow of primary air. In detail, first, air enters 360 degrees in all directions between the lower outer side of the burner head 20 and the upper outer side of the burner body 30. And, except for the air (primary air) supplied to the lower side of the burner body 30 through the left and right chamber 330 of the air supplied from the 360 degrees around the secondary air. And, the secondary air is supplied from the lower portion of the burner head 20 and the inner burner combustion chamber 320 to the upper portion, and around the flame generated in the inner burner flame hole 110, the supplied secondary air is Used. The secondary air continues to be supplied until the gas range is extinguished after the initial ignition.

By the shield double burner of the present invention as described above, the air is supplied by using the 360 degree omnidirectional direction between the burner body and the burner head, except for the air used as the primary air through the chamber of the supplied air. By supplying the remaining air to the secondary air, there is an advantage that can provide sufficient secondary air to the internal combustion chamber, that is, the internal burner.

By the shield double burner of the gas oven range as described above, air flows in near the edge of the burner head, and the secondary air of the inner burner is supplied in the space between the burner head and the burner body in a 360 degree circumferential direction. Since there is a structure that can be, there is an advantage that sufficient secondary air can be supplied.

In addition, the shield double burner has an advantage in that the combustion chamber of the inner burner is integrally formed in the burner body, so that sufficient space is secured between the inner burner and the outer burner so that various designs can be manufactured.

Claims (5)

A nozzle holder having a center nozzle and a side nozzle to which gas is supplied; A burner body disposed above the nozzle holder and having an internal burner combustion chamber corresponding to the central nozzle, and a chamber in which the side nozzles are accommodated and in communication with the internal burner combustion chamber; A burner head disposed above the burner body at a predetermined interval so that external air flows into the chamber, and a burner head having an external burner combustion chamber into which a portion of the air introduced from the chamber and a gas of the side nozzles are introduced; An outer burner cap disposed to cover the outer burner combustion chamber of the burner head to form an outer burner flame hole; And Shield double burner including an inner burner cap disposed to cover the inner burner combustion chamber of the burner body to form an inner burner flame hole. The method of claim 1, And the inner burner combustion chamber and / or the outer burner combustion chamber are venturi tubes narrowing from the lower end to the upper side and widening again. The method of claim 1, In the burner head, A plurality of external burner combustion chambers are formed, Shielded double burner, characterized in that the passage for communicating the plurality of external burner combustion chamber is formed. The method of claim 1, The chamber is a double burner shield, characterized in that the inner burner combustion chamber side is opened. delete

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