BURNER DEVICE HAVING FLAME STABILIZATION STRUCTURE

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of Korean Patent Application No. 10-2024-0074814 filed on Jun. 10, 2024, which is hereby incorporated by reference herein in its entirety.

BACKGROUND

1. Technical Field

The present invention relates to a burner device having a flame stabilization structure.

2. Description of the Related Art

Burner devices are used in household cooking appliances, boilers, and industrial facilities, and gas is generally used as fuel for burner devices.

Burner devices may be divided into single burner devices using one burner and dual burner devices using two or more burners. Dual burner devices are usually composed of an outer burner formed in a circular shape and an inner burner disposed inside the outer burner.

Furthermore, there are also known stack burner devices that are constructed by stacking burners that can provide a simmer flame and a main flame, respectively.

However, these conventional burner devices have a problem in that a flame stabilization function that maintains the stability of a flame by preventing the flame from being extinguished is poor.

In particular, dual stack burner devices in which an outer burner and an inner burner are constructed as a stack have a problem in that it is difficult to dispose a structure for providing a flame stabilization function due to the complex configuration of the dual stack burner devices.

RELATED ART LITERATURE

• Patent Document 1: Korean Patent Application Publication No. 2001-0070378 (published on Jul. 25, 2001)

SUMMARY

The present invention is intended to overcome the above-described problems, and an object of the present invention is to provide a burner device having a flame stabilization structure that can maintain flame stability.

Furthermore, another object of the present invention is to provide a burner device that can stably maintain a simmer flame in a dual stack burner device including an outer burner and an inner burner and providing a simmer flame, thereby providing a flame stabilization function while increasing the overall thermal efficiency of the burner device.

According to an aspect of the present invention, there is provided a burner device having a flame stabilization structure, the burner device including: a burner body having a first nozzle, a second nozzle, and a third nozzle through which gas is introduced, and also having a first body hole communicating with the first nozzle, second body holes communicating with the second nozzle, and a third body hole communicating with the third nozzle; an outer burner lower head disposed on the burner body, and having first outer flame holes and first inner flame holes; an outer burner upper head disposed on the outer burner lower head, and having second outer flame holes; an outer burner cap disposed on the outer burner upper head; an inner burner head disposed on the outer burner lower head, and having second inner flame holes; and an inner burner cap disposed on the inner burner head; wherein the outer burner lower head includes: a first lower head hole communicating with the first body hole; second lower head holes communicating with the second body holes; a third lower head hole communicating with the third body hole; a first lower side wall formed along an outer circumference of a surface of the outer burner lower head and formed to protrude vertically; a second lower side wall formed inside the first lower side wall while being spaced apart from the first lower side wall and formed to protrude vertically; a third lower side wall formed inside the second lower side wall while being spaced apart from the second lower side wall and formed to protrude vertically; a gas passage formed between the second lower side wall and the third lower side wall; a plurality of first protrusions formed on a surface of the first lower side wall; and a plurality of inner protrusions formed on a surface of the third lower side wall; wherein the first outer flame holes are spaces formed by a bottom surface of the outer burner upper head and the plurality of first protrusions; wherein the first inner flame holes are spaces formed by a bottom surface of the inner head and the plurality of inner protrusions; and wherein gas flowing in through the first lower head hole provides flames through the first outer flame holes and the first inner flame holes, respectively.

The outer burner lower head may have a lower head plate formed in a planar shape, and the first lower head hole, the second lower head holes, and the third lower head hole may individually be formed in the lower head plate.

The plurality of first protrusions may have predetermined height and intervals to each other.

The plurality of inner protrusions may have predetermined height and intervals to each other.

An upper side wall may be formed along an outer circumference of an edge of the outer burner upper head and formed to protrude vertically, and a plurality of second protrusions having a preset height and intervals to each other may be formed on the surface of the upper side wall.

The plurality of second outer flame holes may be formed by spaces formed by the bottom surface of the edge of the outer burner cap and the plurality of second protrusions.

The gas flowing in through the upper head hole may provide a flame through the second outer flame holes.

The inner burner head may be disposed on the third lower side wall of the outer burner lower head.

The inner burner head may have an inner head plate formed in a planar shape, and an inner head hole communicating with the third lower head hole of the outer burner lower head is formed in the center of the inner head plate.

An inner side wall may be formed along the outer circumference of the inner burner head and formed to protrude vertically, and a plurality of third protrusions having a preset height and intervals may be formed on the surface of the inner side wall.

The plurality of second inner flame holes may formed by spaces formed by the bottom surface of the inner burner cap and the plurality of third protrusions.

The gas flowing in through the first nozzle may flow in onto a lower head plate through the first body hole of the burner body and the first lower head hole of the outer burner lower head, may move along the surface of the lower head plate, and may provide the simmer flame of the outer burner through the plurality of first outer flame holes formed by spaces between a plurality of first protrusions formed on the surface of the first lower side wall and the bottom surface of the outer burner upper head; and the gas flowing along the surface of the lower head plate may also be transferred to the inside of the third lower side wall through the gas passage, and may provide the simmer flame of the inner burner through a plurality of first inner flame holes formed by the bottom surface of the inner head and the plurality of inner protrusions.

The gas flowing in through the upper head hole of the outer burner upper head may provide the main flame of the outer burner through the second outer flame holes, and the main flame may be maintained by the simmer flame of the first outer flame holes.

The gas flowing in through the inner head hole of the inner burner lower head may provide the main flame of the inner burner through the second inner flame hole, and the main flame may be maintained by the simmer flame of the second inner flame hole.

The outer burner lower head have a lower expansion chamber including chamber outer walls, chamber inner walls, and a chamber flame hole.

The chamber outer walls may be formed to protrude vertically from the surface of the lower head plate, and may be disposed to face each other while being spaced apart from each other; first inlets may be formed in the chamber outer walls, respectively, to allow gas moving along the surface of the lower head plate to flow in; the chamber inner walls may be formed to protrude vertically from the lower head plate inside the chamber outer walls; the chamber inner walls may be disposed to face each other while being spaced apart from each other and form a maintenance space therebetween to maintain a flame; second inlets may be formed in the chamber inner walls, respectively, to allow gas flowing in through the first inlets to flow into the maintenance space; and the chamber flame hole may be formed by an opening formed between the portions where the chamber inner walls come into contact with the first lower side wall.

The outer burner upper head may have an upper expansion chamber including chamber outer walls, chamber inner walls, and a chamber flame hole.

The chamber outer walls may be formed to protrude vertically from the surface of the upper head plate, and may be disposed to face each other while being spaced apart from each other; first inlets may be formed in the chamber outer walls, respectively, to allow gas moving along the surface of the upper head plate to flow in; the chamber inner walls may be formed to protrude vertically from the upper head plate inside the chamber outer walls; the chamber inner walls may be disposed to face each other while being spaced apart from each other and form a maintenance space therebetween to maintain a flame; second inlets may be formed in the chamber inner walls, respectively, to allow gas flowing in through the first inlets to flow into the maintenance space; and the chamber flame hole may be formed by an opening formed between the portions where the chamber inner walls come into contact with the first lower side wall.

According to the present invention, there may be provided the burner device having a flame stabilization structure that can maintain flame stability.

Furthermore, according to the present invention, there may be provided the burner device that can stably maintain a simmer flame in a dual stack burner device including an outer burner and an inner burner and providing a simmer flame, thereby providing a flame stabilization function while increasing the overall thermal efficiency of the burner device.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIGS. 1 to 4 respectively show a perspective view, exploded perspective view, front view, and side view of a burner device having a flame stabilization structure according to an embodiment of the present invention;

FIG. 5 is a perspective view of a burner body viewed from above;

FIG. 6 is a perspective view of the burner body viewed from below;

FIG. 7 is a perspective view of an outer burner lower head;

FIG. 8 is a perspective view of an outer burner upper head;

FIG. 9 is a perspective view of an inner burner head;

FIGS. 10 and 11 are a plan view and a perspective view, respectively, showing a state in which a burner body and an outer burner lower head are combined with each other;

FIG. 12 is a sectional view based on the center of the burner device; and

FIG. 13 is a partial enlarged perspective view of a lower expansion chamber, and FIG. 14 is a partial enlarged plan view of the lower expansion chamber.

DETAILED DESCRIPTION

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIGS. 1 to 4 respectively show a perspective view, exploded perspective view, front view, and side view of a burner device 100 having a flame stabilization structure according to an embodiment of the present invention.

Furthermore, FIG. 5 is a perspective view of a burner body 10 viewed from above, and FIG. 6 is a perspective view of the burner body 10 viewed from below.

Moreover, FIG. 7 is a perspective view of an outer burner lower head 20, FIG. 8 is a perspective view of an outer burner upper head 30, and FIG. 9 is a perspective view of an inner burner head 50.

Referring to FIGS. 1 to 9, the burner device 100 having a flame stabilization structure (hereinafter simply referred to as the “burner device 100”) according to the present embodiment includes the burner body 10, the outer burner lower head 20, the outer burner upper head 30, an outer burner cap 40, the inner burner head 50, and an inner burner cap 60.

In this case, the outer burner lower head 20, the outer burner upper head 30, and the outer burner cap 40 constitute an outer burner OB, and the inner burner head 50 and the inner burner cap 60 constitute an inner burner IB.

The burner body 10 is a means that is positioned at the lowest end of the burner device 100 and serves to support the burner device 100, and includes a first nozzle 11, a second nozzle 12, and a third nozzle 13 through which gas is introduced.

Although the burner body 10 is preferably formed in a shape when viewed from above as shown in the circular drawings, it is obvious that the burner body 10 may be formed in other shapes.

The first nozzle 11, the second nozzle 12, and the third nozzle 13 are each connected to a gas inlet pipe (not shown), and each serve as a passage for transferring gas, supplied from an external gas supply device (not shown), to the burner body 10.

The gas supplied to the first nozzle 11 is provided to first outer flame holes F1 that provide the simmer flame of the outer burner OB and first inner flame holes F3 that provide the simmer flame of the inner burner IB, as will be described below. Furthermore, the gas supplied to the second nozzle 12 is provided to second outer flame holes F2 that provide the main flame of the outer burner OB. Moreover, the gas supplied to the third nozzle 13 is provided to second inner flame holes F4 that provide the main flame of the inner burner IB.

The burner body 10 has a body plate 14 formed in a planar shape. A first body hole 141 communicating with the first nozzle 11, second body holes 142 communicating with the second nozzle 12, and a third body hole 143 communicating with the third nozzle 13 are formed in the surface of the body plate 14.

The first body hole 141 and the second body holes 142 are formed in the surface around the edge of the body plate 14, and the third body hole 143 is formed in the center of the body plate 14.

Although the second body holes 142 are shown as being formed to be two in number in the surface around the edge of the body plate 14 along the direction of the outer circumference thereof, this is exemplary. The second body holes 142 may be formed to be one in number or three or more in number.

As an embodiment, a first nozzle extension pipe 111 connected to the first nozzle 11, a second nozzle extension pipe 121 connected to the second nozzle 12, and a third nozzle extension pipe 131 connected to the third nozzle 13 may be formed under the surface of the burner body 10, as shown in FIG. 6.

As an embodiment, an accommodation portion 144 is formed at a location opposite to the second nozzle 12 based on the center of the burner body 10 under the surface of the burner body 10, and the second nozzle extension pipe 121 is connected to the accommodation portion 144.

Openings 145 are formed between the accommodation portion 144 and the second body holes 142, and the gas flowing in through the second nozzle 12 is transferred to the second body holes 142 through the openings 145 via the second nozzle extension pipe 121 and the accommodation portion 144.

The outer burner lower head 20 is disposed on the burner body 10, and has the first outer flame holes F1 and the first inner flame holes F3.

The outer burner lower head 20 is formed to correspond to the shape of the surface of the burner body 10 in order to cover the overall surface of the burner body 10.

The outer burner lower head 20 has a lower head plate 21 formed in a planar shape.

A first lower head hole 211 communicating with the first body hole 141, second lower head holes 212 communicating with the second body holes 142, and a third lower head hole 213 communicating with the third body hole 143 are formed in the lower head plate 21.

The first lower head hole 211, the second lower head holes 212, and the third lower head hole 213 are formed to have sizes and shapes corresponding to the sizes and shapes of the first body hole 141, the second body holes 142, and the third body hole 143, respectively.

Furthermore, a first lower side wall 22 is formed along the outer circumference of the edge of the outer burner lower head 20 and formed to protrude vertically.

Furthermore, a second lower side wall 23 is formed inside the first lower side wall 22 while being spaced apart from the first lower side wall 22 and formed to protrude vertically.

Furthermore, a third lower side wall 24 is formed inside the second lower side wall 23 while being spaced apart from the second lower side wall 23 and formed to protrude vertically.

That is to say, the first lower side wall 22, the second lower side wall 23, and the third lower side wall 24 are formed in order in the direction from the outside to the inside of the outer burner lower head 20 while being spaced apart from each other and formed to protrude vertically.

Furthermore, a gas passage 25 is formed between the second lower side wall 23 and the third lower side wall 24.

The gas passage 25 serves as a passage for allowing the gas flowing in through the first lower head hole 211 to be transferred to the inside of the third lower side wall 24. The gas transferred to the inside of the third lower side wall 24 is supplied to the first inner flame holes F3 that provide the simmer flame of the inner burner IB, as will be described below.

Meanwhile, a plurality of first protrusions 221 having predetermined height and intervals to each other are formed on the surface of the first lower side wall 22 of the outer burner lower head 20.

When the outer burner upper head 30 is disposed on the outer burner lower head 20, spaces are formed by the bottom surface of the outer burner upper head 30 and the plurality of first protrusions 221, and the plurality of first outer flame holes F1 are provided by these spaces.

The gas that moves along the surface of the lower head plate 21 through the first lower head hole 211 is ignited through the first outer flame holes F1 to form a flame, so that the first outer flame holes F1 provide the simmer flame of the outer burner OB.

Meanwhile, a plurality of inner protrusions 241 having predetermined height and intervals to each other are formed on the surface of the third lower side wall 24 of the outer burner lower head 20.

As will be described below, when the inner burner head 50 is disposed on the third lower side wall 24, spaces are formed by the bottom surface of the inner burner head 50 and the plurality of inner protrusions 241 formed to protrude, and these spaces constitute the plurality of first inner flame holes F3.

The gas flowing in through the gas passage 25 is ignited through the first inner flame holes F3 to form a flame, so that the first inner flame holes F3 serve to provide the simmer flame of the inner burner IB.

Furthermore, a lower expansion chamber 26 is formed in the outer burner lower head 20. The lower expansion chamber 26 will be described later with reference to FIGS. 13 and 14.

The outer burner upper head 30 is disposed on the outer burner lower head 20, and has the second outer flame holes F2.

The outer burner upper head 30 is formed to correspond to the shape of the surface of the outer burner lower head 20 in order to cover the overall surface of the outer burner lower head 20.

The outer burner upper head 30 has an upper head plate 31 formed in a planar shape, and upper head holes 311 communicating with the second lower head holes 212 are formed in the upper head plate 31.

Furthermore, an upper side wall 32 is formed along the outer circumference of the edge of the outer burner upper head 30 and formed to protrude vertically.

A plurality of second protrusions 321 having predetermined height and intervals to each other are formed on the surface of the upper side wall 32.

When the outer burner cap 40 is disposed on the outer burner upper head 30, spaces are formed by the bottom surface of the edge of the outer burner cap 40 and the plurality of second protrusions 321, and these spaces constitute the plurality of second outer flame holes F2.

The gas flowing in through the upper head holes 311 and moving along the surface of the upper head plate 31 is ignited through the second outer flame holes F2 to form a flame, so that the second outer flame holes F2 serve to provide the main flame of the outer burner OB.

Furthermore, an upper expansion chamber 36 is formed in the outer burner upper head 30. The upper expansion chamber 36 will be described later with reference to FIGS. 13 and 14.

The outer burner cap 40 is disposed on the outer burner upper head 30.

An opening 41 is formed in the center of the outer burner cap 40, and a cap plate 42 is formed in an edge area around the opening 41.

As described above, the bottom surface of the edge of the cap plate 42 comes into contact with the surface of the plurality of second protrusions 321 of the outer burner upper head 30 to form the plurality of second outer flame holes F2.

The inner burner head 50 is disposed on the outer burner lower head 20, and has the plurality of second inner flame holes F4.

As described above, the outer burner lower head 20 has the third lower side wall 24, and the inner burner head 50 is disposed on the third lower side wall 24.

The inner burner head 50 is formed to cover the overall inner area defined by the third lower side wall 24.

The inner burner head 50 has an inner head plate 51 shape. An inner head hole 511 formed in a planar communicating with the third lower head hole 213 of the outer burner lower head 20 is formed in the center of the inner head plate 51.

As described above, the plurality of inner protrusions 241 having a preset height and interval are formed on the surface of the third lower side wall 24 of the outer burner lower head 20. When the inner head plate 51 of the inner burner head 50 is disposed on the third lower side wall 24, spaces are formed by the bottom surface of the inner head plate 51 and the plurality of inner protrusions 241, and these spaces serve as the plurality of first inner flame holes F3.

As described above, the gas flowing in through the gas passage 25 is ignited through the first inner flame holes F3 to form a flame, and this flame becomes the simmer flame of the inner burner IB. Accordingly, the first inner flame holes F3 provide the simmer flame of the inner burner IB.

Furthermore, an inner side wall 52 is formed along the outer circumference of the inner burner head 50 and formed to protrude vertically.

Furthermore, a plurality of third protrusions 521 having a preset height and interval are formed on the surface of the inner side wall 52.

When the inner burner cap 60 is disposed on the inner burner head 50, spaces are formed by the bottom surface of the inner burner cap 60 and the plurality of third protrusions 521, and these spaces constitute the plurality of second inner flame holes F4.

The gas flowing in through the third lower head hole 213 and the inner head hole 511 and moving along the surface of the inner head plate 51 is ignited through the second inner flame holes F4 to form a flame, so that the second inner flame holes F4 serve to provide the main flame of the inner burner IB.

The inner burner cap 60 is disposed on the inner burner head 50.

The inner burner cap 60 is formed to correspond to the shape of the surface of the inner burner head 50, and is disposed to cover the overall inner burner head 50.

As described above, the bottom surface of the inner burner cap 60 comes into contact with the surfaces of the plurality of third protrusions 521 of the inner burner head 50 to form the plurality of second inner flame holes F4.

Next, the operation and flame stabilization function of the burner device 100 according to the present invention will be described with reference to FIGS. 10 to 12.

FIGS. 10 and 11 are a plan view and a perspective view, respectively, showing a state in which the burner body 10 and the outer burner lower head 20 are combined with each other.

Referring to FIGS. 10 and 11, the gas flowing in through the first nozzle 11 flows in onto the lower head plate 21 through the first body hole 141 of the burner body 10 and the first lower head hole 211 of the outer burner lower head 20, as indicated by the arrows, and moves from the first lower head hole 211 to both sides along the surface of the lower head plate 21, as indicated by the arrows.

The gas moving in this manner provides flames through the plurality of first outer flame holes F1 formed by the spaces between the plurality of first protrusions 221, formed on the surface of the first lower side wall 22, and the bottom surface of the outer burner upper head 30, as described above, and the flames act as the simmer flame of the outer burner OB.

Meanwhile, the gas moving as described above is also transferred to the inside of the third lower side wall 24 through the gas passage 25 formed between the second lower side wall 23 and third lower side wall 24 of the outer burner lower head 20, as described above.

As described above, the plurality of inner protrusions 241 are formed on the surface of the third lower side wall 24 of the outer burner lower head 20, so that flames are provided through the plurality of first inner flame holes F3 formed by the bottom surface of the inner burner head 50 and the plurality of inner protrusions 241 and these flame act as the simmer flame of the inner burner IB.

In this manner, by means of a component such as the outer burner lower head 20, gas may be supplied through the first outer flame holes F1 and first inner flame holes F3 of the outer burner OB and the inner burner IB, so that simmer flames in the first outer flame holes F1 and the first inner flame holes F3 can be continuously maintained. Accordingly, the flame stabilization function of the burner device 100 may be improved.

Meanwhile, as described above, the gas flowing in through the upper head hole 311 of the outer burner upper head 30 provides the main flame of the outer burner OB through the second outer flame holes F2, and this main flame may be maintained by the simmer flame of the first outer flame holes F1, as described above, so that a flame stabilization function for the main flame of the outer burner OB can also be improved.

Furthermore, as described above, the gas flowing in through the inner head hole 511 of the inner burner head 50 provides the main flame of the inner burner IB through the second inner flame holes F4, and this main flame may be maintained by the simmer flame of the second inner flame holes F3, as described above, so that a flame stabilization function for the main flame of the inner burner IB can also be improved.

FIG. 12 is a sectional view based on the center of the burner device 100.

Referring to FIG. 12, as described above, a simmer flame may be continuously maintained through the first outer flame holes F1 and the first inner flame holes F3, and thus, it can be seen that the second outer flame holes F2 and the second inner flame holes F4 disposed above the holes F1 and F3 may also be continuously maintained by means of the simmer flame. Thus, a flame stabilization function that can significantly reduce an extinguishment phenomenon can be provided.

Next, the lower expansion chamber 26 and the upper expansion chamber 36 will be described.

As described above, the lower expansion chamber 26 and the upper expansion chamber 36 are formed in the outer burner lower head 20 and the outer burner upper head 30, respectively. Since their shapes and functions are the same, only the lower expansion chamber 26 will be described.

FIG. 13 is a partial enlarged perspective view of the lower expansion chamber 26, and FIG. 14 is a partial enlarged plan view of the lower expansion chamber 26.

Referring to FIGS. 13 and 14, the lower expansion chamber 26 includes chamber outer walls 261 and 262, chamber inner walls 265 and 266, and a chamber flame hole F5.

The chamber outer walls 261 and 262 are formed to protrude vertically from the surface of the lower head plate 21, and are disposed to face each other while being spaced apart from each other.

Furthermore, first inlets 263 and 264 configured to allow the gas moving along the surface of the lower head plate 21 to flow in are formed in the chamber outer walls 261 and 262, respectively.

The chamber inner walls 265 and 266 are formed to protrude vertically from the lower head plate 21 inside the chamber outer walls 261 and 262.

The chamber inner walls 264 and 265 are disposed to face each other while being spaced apart from each other, so that a maintenance space 267 is formed between them to maintain the flame.

Second inlets 268 and 269 configured to allow the gas flowing in through the first inlets 263 and 264 to flow into the maintenance space 267 are formed in the chamber inner walls 265 and 266, respectively.

The chamber flame hole F5 is formed by an opening 270 formed between the portions where the chamber inner walls 265 and 266 come into contact with the first lower side wall 22.

According to the above-described structure, the gas moving along the surface of the lower head plate 21 may flow into the maintenance space 267 of the lower expansion chamber 26 through the first inlets 263 and 264 and the second inlets 268 and 269, so that a flame can be generated by the chamber flame hole F5 formed in the maintenance space 267.

The flame is rarely affected by the outside due to the maintenance space 267 of the expansion chamber 26, so that it can be continuously maintained. Accordingly, even when the simmer flame or main flame of the outer burner OB is lost, a simmer flame or main flame can be re-ignited by the flame of the chamber flame hole F5. Accordingly, the flame stabilization function of the outer burner OB may be further improved.

Furthermore, the upper expansion chamber 36 is also formed and operates in the same manner as the lower expansion chamber 26, so that a flame stabilization function in the outer burner OB can be more reliably improved.

Although the present invention has been described with reference to the exemplary embodiments of the present invention above, the scope of the present invention is not limited to the above embodiments, and it is obvious that various modifications and alterations may be implemented within the scope understood by the attached claims and the accompanying drawings.