A new type of burner

Abstract

The present invention discloses a novel burner, comprising a burner base and a fire cover base detachably mounted on the burner base, the fire cover base comprising a first base body and an outer ring channel and an inner ring channel arranged on the first base body and each having an annular cavity therein, the outer ring channel surrounding the outer side of the inner ring channel; the outer ring channel and / or the inner ring channel are provided with two air inlet pipes connected to the annular cavity thereof, the two air inlet pipes being arranged in parallel and spaced apart and respectively located on both sides of the annular cavity; the air inlet direction of the air inlet pipe is parallel to the tangential direction of the annular cavity, and the air inlet directions of the two air inlet pipes are opposite. The burner of the present invention, the arrangement of the air inlet pipe can not only avoid the energy loss caused by the collision of the gas, but also, because the two air inlet pipes are respectively located on both sides of the annular cavity, the gas entering the annular cavity is more evenly distributed, and the gas at the fire hole of the fire cover is also relatively evenly distributed, thereby avoiding the flame separation phenomenon or backfire phenomenon at the fire hole of the fire cover.

Description

Technical Field

[0001] The present invention relates to the technical field of gas stoves, in particular to a novel burner. Background Art

[0002] Traditional top-inlet burners lack the traditional convergence and expansion sections due to their short ejector tubes, resulting in insufficient ejection capacity. Therefore, at least two ejector tubes are typically installed to increase the burner's combustion load. Existing burners typically have the two ejector tube outlets facing each other. This arrangement causes the mixed gases ejected from the two outlets to collide at a certain point within the annular cavity, resulting in significant energy loss in the fuel-air mixture. Furthermore, due to the higher pressure and gas volume at the collision point, flame separation may occur at the fire hole of the fire cover at this location, while flashback may occur at fire holes farther away from this location.

[0003] To address the aforementioned issues, patent number CN111947149B discloses a stove burner. This burner includes a guide block disposed within an outer ring gas mixing chamber, the guide block being positioned between two gas outlet ends. Furthermore, a guide surface is provided on the guide block, thereby redirecting the gas flow from one gas outlet end to flow away from the other gas outlet end, thereby avoiding gas backlash. Although this stove burner solves the gas backlash issue, because both gas outlet ends are disposed on the same side of the outer ring gas mixing chamber, the amount of gas near the gas outlet end is greater, while the amount of gas on the other side away from the gas outlet end is less, resulting in uneven gas distribution within the outer ring gas mixing chamber and, in turn, uneven gas distribution to the fire holes in the fire cover. Summary of the Invention

[0004] In order to overcome the defects of the above-mentioned prior art, the present invention provides a new type of burner. The fire cover seat in the burner can not only avoid the impact of gas and cause energy loss, but also the gas in the annular cavity is more evenly distributed, which can avoid flame separation or backfire at the fire hole of the fire cover.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] A novel burner comprises a burner base and a fire cover seat detachably mounted on the burner base, wherein:

[0007] The fire cover seat includes a first seat body and an outer ring channel and an inner ring channel provided on the first seat body and each having an annular cavity therein, wherein the outer ring channel surrounds the outer side of the inner ring channel;

[0008] The outer ring channel and / or the inner ring channel are provided with two air inlet pipes connected to the annular cavity thereof, the two air inlet pipes being arranged in parallel and spaced apart and respectively located on both sides of the annular cavity;

[0009] The air intake direction of the air intake pipe is parallel to the tangential direction of the annular cavity, and the air intake directions of the two air intake pipes are opposite.

[0010] The burner of the present invention provides at least two air intake pipes connected to the annular cavity of the fire cover seat on the outer ring channel and / or the inner ring channel. The two air intake pipes are arranged in parallel and at intervals and have opposite air intake directions. This arrangement can not only avoid the substantial loss of fuel-air mixture energy caused by the collision of the gases, but also does not require the additional arrangement of guide blocks, thereby reducing production costs. In addition, since the two air intake pipes are respectively located on both sides of the annular cavity, the gas entering the annular cavity is more evenly distributed, and the gas at each fire hole is also relatively even, thereby avoiding the flame separation phenomenon or backfire phenomenon at the fire hole of the fire cover.

[0011] Furthermore, the connection point between the outer ring channel and / or the inner ring channel and the air intake pipe is a tube wall cavity with an expanded volume, and an arc-shaped guide surface is formed on the tube wall cavity to make the connection point an arc-shaped transition.

[0012] Therefore, by providing a tube wall cavity at the connection point between the outer ring channel and / or the inner ring channel and the intake pipe, and forming an arc-shaped guide surface on the tube wall cavity, when the gas enters the annular cavity from the intake pipe, the gas can flow along the extension direction of the arc-shaped guide surface, thereby achieving a relatively stable flow direction change, thereby ensuring the smoothness of the airflow.

[0013] Furthermore, the air inlet pipe is located at the bottom of the outer ring channel and / or the inner ring channel, the tube wall cavity expands toward the bottom of the outer ring channel and / or the inner ring channel, and one end is connected to the air inlet pipe, and the other end is connected to the outer ring channel and / or the inner ring channel;

[0014] The air intake direction from the tube wall cavity into the annular cavity is perpendicular to the air intake direction of the air intake pipe.

[0015] Furthermore, the first seat body, the air intake pipe, the pipe wall cavity, the outer ring channel and the inner ring channel are all formed in one piece.

[0016] Furthermore, the burner base includes a second base body and at least two air outlets provided on the second base body, and the air outlets are provided corresponding to the air inlet pipes;

[0017] An air inlet portion communicating with the interior of any one of the two air outlet portions is provided on the side of the air outlet portion;

[0018] It also includes at least one connecting pipe arranged below the second seat body, and two ends of the connecting pipe are respectively connected to the bottoms of the two air outlet parts and communicated with the interiors thereof.

[0019] Therefore, by separately arranging a connecting pipe under the second seat body to connect the bottoms of the two air outlet parts respectively, the connecting pipe can not only play a sealing role, eliminating the trouble of setting up traditional seals, but also the connecting pipe can be used to transport gas. At this time, it is only necessary to set an air intake part on the side of the air outlet part to replace the traditional air intake pipe, thereby making the structure of the entire burner base more concise.

[0020] Furthermore, an air outlet is provided near the top of the air outlet portion, and the air outlet is connected to the air inlet of the air inlet pipe;

[0021] The gas outlet directions of at least two of the gas outlet portions are parallel to the tangent direction of the circumference and the gas outlet directions of the two are opposite.

[0022] Furthermore, at least two of the air outlets are respectively arranged on two sides of the second base and close to the edge.

[0023] Furthermore, the second seat, the air outlet and the air inlet are all integrally formed.

[0024] Furthermore, the first base body is further provided with a connecting plate for connecting the outer ring channel and the inner ring channel, and the connecting plate is provided with a positioning hole;

[0025] A positioning column is provided on the second seat body at a position corresponding to the positioning hole, and the fire cover seat can be detachably mounted on the burner base through the plug-in cooperation between the positioning column and the positioning hole.

[0026] Furthermore, it also includes an outer ring fire cover and an inner ring fire cover, wherein:

[0027] The outer ring fire cover is detachably mounted on the outer ring channel and communicated with its annular cavity. The inner ring fire cover is detachably mounted on the inner ring channel and communicated with its annular cavity. A plurality of fire holes are arranged on the outer side walls of the outer ring fire cover and the inner ring fire cover.

[0028] In summary, the novel burner of the present invention has the following beneficial effects:

[0029] (1) The burner of the present invention provides at least two air inlet pipes connected to the annular cavity of the fire cover seat on the outer ring channel and / or the inner ring channel. The two air inlet pipes are arranged in parallel and spaced apart with opposite air intake directions. This arrangement can not only avoid the significant loss of fuel-air mixture energy caused by the collision of the gas, but also does not require the additional arrangement of a guide block, thereby reducing the production cost. In addition, since the two air inlet pipes are respectively located on both sides of the annular cavity, the gas entering the annular cavity is more evenly distributed, and the gas at each fire hole is also relatively even, thereby avoiding the flame separation phenomenon or backfire phenomenon at the fire hole of the fire cover.

[0030] (2) The burner of the present invention provides a tube wall cavity at the connection point between the outer ring channel and / or the inner ring channel and the air inlet pipe, and the tube wall cavity is formed with an arc-shaped guide surface, so that when the gas enters the annular cavity from the air inlet pipe, the gas can flow along the extension direction of the arc-shaped guide surface, thereby achieving a relatively stable flow direction change, thereby ensuring the smoothness of the air flow.

[0031] (3) The burner of the present invention provides a connecting pipe under the second seat body to connect the bottoms of the two air outlets respectively. The connecting pipe not only plays a sealing role, eliminating the trouble of setting up traditional sealing parts, but also can be used to transport gas. In this case, it is only necessary to provide an air inlet on the side of the air outlet to replace the traditional air inlet pipe, thereby making the structure of the entire burner base more concise. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the explosion of the burner of the present invention;

[0033] Figure 2 This is a schematic structural diagram of a fire cover seat in a burner of the present invention;

[0034] Figure 3 This is a structural diagram of the fire cover seat in the burner of the present invention from another perspective;

[0035] Figure 4 It is a structural schematic diagram of the burner base in the burner of the present invention;

[0036] Figure 5 A schematic structural diagram of the burner head base of the burner of the present invention from another perspective;

[0037] Figure 6 Schematic diagram of the bottom structure of the burner base in the burner of the present invention;

[0038] Figure 7 Schematic diagram of the explosion of the fire cover seat and the burner base in the burner of the present invention;

[0039] Figure 8 It is a structural schematic diagram of the burner of the present invention;

[0040] Figure 9 This is a structural schematic diagram of the burner of the present invention from another perspective.

[0041] The meanings of the reference numerals are as follows:

[0042] 1. Fire cover base; 11. First base body; 12. Outer ring channel; 13. Inner ring channel; 14. First air inlet pipe; 15. First tube wall cavity; 151. First curved guide surface; 16. Second air inlet pipe; 17. Second tube wall cavity; 171. Second curved guide surface; 18. Connecting plate; 181. Positioning hole; 19. First positioning protrusion; 2. Burner base; 21. Second base body; 22. First air outlet; 221. First air outlet hole; 23. Second air outlet; 231 , second air outlet; 24, first air inlet; 241, first air inlet; 25, third air outlet; 251, third air outlet; 26, fourth air outlet; 261, fourth air outlet; 27, second air inlet; 271, second air inlet; 28, positioning column; 291, supporting leg; 292, second positioning protrusion; 293, first connecting pipe; 294, second connecting pipe; 3, outer ring fire cover; 31, first fire hole; 4, inner ring fire cover; 41, second fire hole; 5, sleeve. DETAILED DESCRIPTION

[0043] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0046] See Figure 1-9The present invention provides a novel fire cover seat 1, comprising a fire cover seat 1, a burner base 2, an outer ring fire cover 3, and an inner ring fire cover. The fire cover seat 1 is detachably mounted on the burner base 2. The fire cover seat 1 comprises a first base body 11, and an outer ring channel 12 and an inner ring channel 13, both of which are provided on the first base body 11 and each of which has an annular cavity therein. The outer ring channel 12 surrounds the outer ring channel 13. The outer ring fire cover 3 is detachably mounted on the outer ring channel 12 and communicates with its annular cavity. The inner ring fire cover 4 is detachably mounted on the inner ring channel 13 and communicates with its annular cavity. A plurality of first fire holes 31 are formed on the outer wall of the outer ring fire cover 3, and a plurality of second fire holes 41 are formed on the outer wall of the inner ring fire cover 4.

[0047] For details, see Figure 2-3 The outer annular channel 12 is provided with two first air inlet pipes 14 communicating with its annular cavity. The two first air inlet pipes 14 are arranged side by side, spaced apart, and located on either side of the annular cavity. The air inlet directions of the first air inlet pipes 14 are parallel to the tangent direction of the annular cavity and in opposite directions. Furthermore, a first tube wall cavity 15 is provided at the connection point between the outer annular channel 12 and the two first air inlet pipes 14. A first curved guide surface 151 is formed on the first tube wall cavity 15 to provide an arc-shaped transition at the connection point.

[0048] In this embodiment, the first air inlet pipe 14 is located at the bottom of the outer annular channel 12. The first tube wall cavity 15 expands toward the bottom of the outer annular channel 12, with one end connected to the air inlet of the first air inlet pipe 14 and the other end connected to the outer annular channel 12. The direction of air intake from the first tube wall cavity 15 into the annular cavity is perpendicular to the direction of air intake of the first air inlet pipe 14.

[0049] See also Figure 2-3 The inner annular channel 13 is provided with two second air inlet pipes 16 communicating with its annular cavity. The two second air inlet pipes 16 are arranged side by side and spaced apart, one on each side of the annular cavity. The air inlet directions of the second air inlet pipes 16 are parallel to the tangent direction of the annular cavity and in opposite directions. Furthermore, a second tube wall cavity 17 is provided at the connection point between the inner annular channel 13 and the two second air inlet pipes 16. A second curved guide surface 171 is formed on the second tube wall cavity 17 to provide an arc-shaped transition at the connection point.

[0050] In this embodiment, the second air intake pipe 16 is located at the bottom of the inner annular channel 13. The second tube wall cavity 17 expands toward the bottom of the inner annular channel 13, with one end connected to the air inlet of the second air intake pipe 16 and the other end connected to the inner annular channel 13. The direction of air intake from the second tube wall cavity 17 into the inner annular channel 13 is perpendicular to the direction of air intake of the second air intake pipe 16.

[0051] Therefore, by arranging two first air intake pipes 14 connected to the annular cavity of the outer ring channel 12, the two first air intake pipes 14 are arranged in parallel and spaced apart with opposite air intake directions, and by arranging two second air intake pipes 16 connected to the annular cavity of the inner ring channel 13, the two second air intake pipes 16 are arranged in parallel and spaced apart with opposite air intake directions. This arrangement can not only avoid a substantial loss of fuel-air mixture energy caused by the collision of the gases, but also does not require additional guide blocks, thereby reducing production costs. In addition, since the two first air intake pipes 14 and the two second air intake pipes 16 are respectively located on both sides of the annular cavity, the gas entering the annular cavity is more evenly distributed, and the gas at the first fire hole 31 and the second fire hole 41 is also relatively evenly distributed, thereby avoiding flame separation or backfire at the fire holes. At the same time, by providing a first tube wall cavity 15 at the connection between the outer ring channel 12 and the first air intake pipe 14, and forming a first arc-shaped guide surface 151 on the first tube wall cavity 15, and by providing a second tube wall cavity 17 at the connection between the inner ring channel 13 and the second air intake pipe 16, and forming a second arc-shaped guide surface 171 on the second tube wall cavity 17, when the gas enters the annular cavity from the first air intake pipe 14 and the second air intake pipe 16, the gas can flow along the extension direction of the first arc-shaped guide surface 151 and the second arc-shaped guide surface 171, thereby achieving a relatively stable flow direction change and ensuring the smoothness of the gas flow.

[0052] In this embodiment, the two second air inlet pipes 16 on the inner ring channel 13 and the two first air inlet pipes 14 on the outer ring channel 12 are arranged parallel to each other. The air inlet of one second air inlet pipe 16 on the inner ring channel 13 is arranged in parallel with the air inlet of one first air inlet pipe 14 on the outer ring channel 12, and the air inlet of another second air inlet pipe 16 on the inner ring channel 13 is arranged in parallel with the air inlet of another first air inlet pipe 14 on the outer ring channel 12.

[0053] In this embodiment, the first air inlet pipe 14 , the second air inlet pipe 16 , the first tube wall cavity 15 , the second tube wall cavity 17 , the outer ring channel 12 , the inner ring channel 13 and the first base body 11 are all integrally formed.

[0054] See Figure 4-6The burner base 2 includes a second base 21, a first air outlet 22 and a second air outlet 23 extending through the second base 21, and a first connecting pipe 293 disposed below the second base 21. The first and second air outlets 22 and 23 correspond to the two first air inlet pipes 14 on the outer ring channel 12, respectively. One end of the first connecting pipe 293 is detachably connected to the bottom of the first air outlet 22 and communicates with its interior. The other end of the first connecting pipe 293 is connected to the bottom of the second air outlet 23 and communicates with its interior. Furthermore, a first air inlet 24 is provided on the side of the first air outlet 22, communicating with its interior. This first air inlet 24 is configured to communicate with the outer ring ejector pipe.

[0055] In this embodiment, both ends of the first connecting pipe 293 are detachably connected to the bottom of the first air outlet portion 22 and the bottom of the second air outlet portion 23 respectively by threaded connection.

[0056] Specifically, a first air outlet hole 221 is defined on the side of the first air outlet portion 22 near the top, and a second air outlet hole 231 is defined on the side of the second air outlet portion 23 near the top. The first air outlet hole 221 and the second air outlet hole 231 are respectively connected to the air inlets of the two first air inlet pipes 14. The air outlet directions of the first air outlet hole 221 and the second air outlet hole 231 are both parallel to the tangent direction of the circumference and opposite to each other. The first air inlet portion 24 is defined by a first air inlet hole 241. The first air outlet portion 22 and the second air outlet portion 23 are respectively disposed on either side of the second base 21, near the edge.

[0057] Therefore, after the gas in the outer ring ejector tube enters the first air inlet part 24 through the first air inlet hole 241, part of the gas flows to the top of the first air outlet part 22 and flows out from the first air outlet hole 221 and enters a first air inlet pipe 14, and part of the gas flows to the bottom of the first air outlet part 22 and enters the first connecting pipe 293, and then flows to the top of the second air outlet part 23 and flows out from the second air outlet hole 231 and enters another first air inlet pipe 14.

[0058] In this embodiment, the first air outlet 22 and the second air outlet 23 are both columnar structures, the first air inlet 24 is a block-shaped structure, and the second base 21 includes a rectangular bottom plate and support legs 291 disposed below the four corners of the bottom plate. The second base 21, the first air outlet 22, the second air outlet 23, the first air inlet 24, and the support legs 291 are all integrally formed. The first air outlet 22 and the second air outlet 23 are respectively disposed at two obliquely opposite corners of the bottom plate of the second base 21.

[0059] Of course, in other embodiments, the first air inlet 24 may also be provided on the second air outlet 23 , which is not limited here.

[0060] Therefore, by separately arranging the first connecting pipe 293 under the second seat body 21 to connect the bottom of the first air outlet portion 22 and the bottom of the second air outlet portion 23 respectively, the first connecting pipe 293 can not only play a sealing role, thereby eliminating the trouble of setting up a seal, but the first connecting pipe 293 can also be used to transport gas. At this time, it is only necessary to set a first air inlet portion 24 on the first air outlet portion 22 or the second air outlet portion 23 to connect to the interior thereof to replace the traditional air inlet pipe, thereby making the structure of the entire burner base 2 more concise.

[0061] See also Figure 4-6 The burner base 2 also includes a third air outlet 25 and a fourth air outlet 26, which extend through the second base 21, and a second connecting pipe 294, which is disposed below the second base 21. The third air outlet 25 and the fourth air outlet 26 correspond to the two second air inlet pipes 16 on the inner ring channel 13. One end of the second connecting pipe 294 is detachably connected to the bottom of the third air outlet 25 and communicates with its interior. The other end of the second connecting pipe 294 is connected to the bottom of the fourth air outlet 26 and communicates with its interior. Furthermore, a second air inlet 27 is provided on the side of the third air outlet 25, communicating with its interior. This second air inlet 27 is configured to communicate with the inner ring ejector pipe.

[0062] In this embodiment, both ends of the second connecting pipe 294 are detachably connected to the bottom of the third air outlet portion 25 and the bottom of the fourth air outlet portion 26 by threaded connection.

[0063] Specifically, a third air outlet 251 is defined on the side of the third air outlet portion 25 near the top, and a fourth air outlet 261 is defined on the side of the fourth air outlet portion 26 near the top. The third air outlet 251 and the fourth air outlet 261 are respectively connected to the air inlets of the two second air inlet pipes 16. The air outlet directions of the third air outlet 251 and the fourth air outlet 261 are both parallel to the tangent direction of the circumference and opposite to each other. A second air inlet 271 is defined on the second air inlet portion 27. Furthermore, the third air outlet 25 and the fourth air outlet 26 are respectively disposed on both sides of the second base 21 near the edge. The third air outlet 25 and the first air outlet 22 are both located on the same side of the second base 21 and are spaced parallel to each other. The fourth air outlet 26 and the second air outlet 23 are both located on the same side of the second base 21 and are spaced parallel to each other.

[0064] Therefore, after the gas in the inner ring ejector tube enters the second air inlet part 27 through the second air inlet hole 271, part of the gas flows to the top of the third air outlet part 25 and flows out from the third air outlet hole 251 and enters a second air inlet pipe 16, and part of the gas flows to the bottom of the third air outlet part 25 and enters the second connecting pipe 294, and then flows to the top of the fourth air outlet part 26 and flows out from the fourth air outlet hole 261 and enters another second air inlet pipe 16.

[0065] In this embodiment, the third air outlet 25 and the fourth air outlet 26 are both columnar structures, the second air inlet 27 is a block structure, and the second base 21 and the third air outlet 25, the fourth air outlet 26 and the second air inlet 27 are all integrally formed.

[0066] Of course, in other embodiments, the second air inlet 27 may also be provided on the fourth air outlet 26 , which is not limited here.

[0067] See Figure 7 The first base body 11 of the fire cover seat 1 is also integrally formed with a connecting plate 18 for connecting the outer ring channel 12 and the inner ring channel 13. Two connecting plates 18 are provided and arranged opposite each other. Positioning holes 181 are defined in each connecting plate 18. The positioning hole 181 on one connecting plate 18 is a round hole, while the positioning hole 181 on the other connecting plate 18 is a square hole. Two positioning posts 28 are also spaced apart on the second base body 21 of the burner base 2. One positioning post 28 is a round post, while the other is a square post. Thus, by inserting the positioning posts 28 into the positioning holes 181, the fire cover seat 1 can be removably mounted on the burner base 2.

[0068] In addition, a first positioning protrusion 19 is provided on the bottom of the first air inlet pipe 14 and the first tube wall cavity 15 of the fire cover seat 1, and a second positioning protrusion 292 is provided on the second seat body 21 of the burner base 2 at a position corresponding to the first positioning protrusion 19. Thus, by providing the first positioning protrusion 19 and the second positioning protrusion 292, the fire cover seat 1 and the burner base 2 can be quickly positioned.

[0069] In this embodiment, there are three first positioning protrusions 19 and three second positioning protrusions 292 respectively, which are arranged along the circumferential direction and are triangular in shape.

[0070] In addition, it also includes a sleeve 5 that is detachably mounted inside the first air inlet pipe 14 . The first air inlet pipe 14 is provided with an annular ridge (not shown in the figure) near the air outlet. The annular ridge can be used to abut against the bottom of the sleeve 5 .

[0071] In summary, the novel burner of the present invention has the following beneficial effects:

[0072] (1) The burner of the present invention provides at least two air inlet pipes connected to the annular cavity on the outer ring channel 12 and / or the inner ring channel 13 of the fire cover seat 1. The two air inlet pipes are arranged in parallel and spaced apart and have opposite air intake directions. This arrangement not only avoids a significant loss of fuel-air mixture energy caused by the collision of the gases, but also does not require additional guide blocks, thereby reducing production costs. In addition, since the two air inlet pipes are respectively located on both sides of the annular cavity, the gas entering the annular cavity is more evenly distributed, and the gas at each fire hole is also relatively even, thereby avoiding flame separation or backfire at the fire hole of the fire cover.

[0073] (2) The burner of the present invention provides a tube wall cavity at the connection point between the outer ring channel 12 and / or the inner ring channel 13 and the air inlet pipe, and the tube wall cavity is formed with an arc-shaped guide surface. As a result, when the gas enters the annular cavity from the air inlet pipe, the gas can flow along the extension direction of the arc-shaped guide surface, thereby achieving a relatively stable flow direction change and ensuring the smoothness of the air flow.

[0074] (3) The burner of the present invention provides a connecting pipe under the second base 21 to connect the bottoms of the two air outlets respectively. The connecting pipe not only plays a sealing role, eliminating the trouble of setting up traditional sealing parts, but also can be used to transport gas. In this case, it is only necessary to provide an air inlet on the side of the air outlet to replace the traditional air inlet pipe, thereby making the structure of the entire burner base more simple.

[0075] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0076] It should be understood that the terms "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0077] In addition, in the description of the present invention, “a plurality of” and “a plurality of” mean two or more, unless otherwise clearly and specifically defined.

[0078] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A new type of burner, characterized in that: It includes a burner base and a fire cover seat detachably mounted on the burner base, wherein: The fire cover seat includes a first seat body and an outer ring channel and an inner ring channel provided on the first seat body and each having an annular cavity therein, wherein the outer ring channel surrounds the outer side of the inner ring channel; The outer ring channel and / or the inner ring channel are provided with two air inlet pipes connected to the annular cavity thereof, the two air inlet pipes being arranged in parallel and spaced apart and respectively located on both sides of the annular cavity; The air intake direction of the air intake pipe is parallel to the tangential direction of the annular cavity, and the air intake directions of the two air intake pipes are opposite; The connection point between the outer ring channel and / or the inner ring channel and the air intake pipe is a tube wall cavity with an expanded volume, and an arc-shaped guide surface is formed on the tube wall cavity to make the connection point an arc-shaped transition; The air inlet pipe is located at the bottom of the outer ring channel and / or the inner ring channel, and the pipe wall cavity expands toward the bottom of the outer ring channel and / or the inner ring channel, and one end of the pipe wall cavity is connected to the air inlet pipe, and the other end is connected to the outer ring channel and / or the inner ring channel; The air intake direction from the tube wall cavity into the annular cavity is perpendicular to the air intake direction of the air intake pipe; The burner base includes a second base body and at least two air outlets provided on the second base body, wherein the air outlets are provided corresponding to the air inlet pipes; An air inlet portion communicating with the interior of any one of the two air outlet portions is provided on the side of the air outlet portion; It also includes at least one connecting pipe arranged below the second seat body, and two ends of the connecting pipe are respectively connected to the bottoms of the two air outlet parts and communicated with the interiors thereof.

2. The burner according to claim 1, characterized in that The first seat body, the air inlet pipe, the pipe wall cavity, the outer ring channel and the inner ring channel are all integrally formed.

3. The burner according to claim 1, characterized in that An air outlet is provided near the top of the air outlet portion, and the air outlet is connected to the air inlet of the air inlet pipe; The gas outlet directions of at least two of the gas outlet portions are parallel to the tangent direction of the circumference and the gas outlet directions of the two are opposite.

4. The burner according to claim 3, characterized in that At least two air outlets are respectively arranged on two sides of the second base and close to the edge.

5. The burner according to claim 3 or 4, characterized in that: The second seat, the air outlet and the air inlet are all integrally formed.

6. The burner according to claim 1, characterized in that The first base body is further provided with a connecting plate for connecting the outer ring channel and the inner ring channel, and the connecting plate is provided with a positioning hole; A positioning column is provided on the second seat body at a position corresponding to the positioning hole, and the fire cover seat can be detachably mounted on the burner base through the plug-in cooperation between the positioning column and the positioning hole.

7. The burner according to claim 1, characterized in that It also includes an outer ring fire cover and an inner ring fire cover, wherein: The outer ring fire cover is detachably mounted on the outer ring channel and communicated with its annular cavity. The inner ring fire cover is detachably mounted on the inner ring channel and communicated with its annular cavity. A plurality of fire holes are arranged on the outer side walls of the outer ring fire cover and the inner ring fire cover.

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