Combustor and gas stove
By designing annular ring fire joints and arc-shaped ring seam hole structures on the fire cover of the burner, the problems of flame instability and low thermal efficiency are solved, and more stable flames and higher thermal efficiency are achieved.
Patent Information
- Application Number
- CN202310749831.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-21
- Publication Date
- 2024-12-24
AI Technical Summary
The fire holes in the fire cover in a multi-ring fire gas stove are usually round fire holes or strip fire holes, resulting in unstable flames and low thermal efficiency.
Design a burner with an annular ring fire slot on the fire cover, and the annular fire slot is divided into multiple arc-shaped annular slot holes through the connecting ribs. The annular slot holes penetrate vertically through the fire cover, and the bottom end is The fire cavity is connected, and the fires in the annular joint holes are connected to each other by connecting the gaps of each annular joint hole to form an annular joint fire to improve flame stability.
It improves the flame stability and thermal efficiency of the burner, ensures good stability of the ring-slit flame, and can effectively heat the bottom of the pot.
Smart Images
Figure CN119178153A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a burner and a gas stove. Background Art
[0002] Gas stoves are kitchen appliances that use liquefied petroleum gas (liquid), artificial gas, natural gas and other gas fuels for direct heating. Gas stoves have become an indispensable electrical appliance in home life. With the improvement of people's living standards, people's requirements for the performance of gas stoves are getting higher and higher.
[0003] In the related multi-ring gas stoves, the fire holes of the fire cover are usually round fire holes or strip fire holes, so when in use, problems such as unstable flame and low thermal efficiency are likely to occur. Summary of the invention
[0004] The object of the present invention is to provide a burner and a gas stove, so as to optimize the fire hole structure of the fire cover in the burner in the related art and improve the flame stability and thermal efficiency of the burner.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0006] According to one aspect of the present invention, there is provided a burner, comprising: a fire cover, the fire cover being provided with a ring-shaped fire seam arranged around the center of the fire cover; a fire cavity formed below the bottom of the fire cover; wherein the bottom of the fire seam is provided with a plurality of spaced-apart connecting ribs, the inner and outer ends of the connecting ribs are respectively connected to the inner and outer side walls of the fire seam, and the plurality of connecting ribs separate the fire seam into a plurality of circumferentially spaced-apart annular holes; the annular holes vertically penetrate the fire cover, and the bottom of the annular holes is directly connected to the fire cavity; a connecting area is formed above the top of the connecting ribs, the connecting area is located in the fire seam, and the connecting area connects the annular holes on the adjacent sides, so that the plurality of annular holes in the fire seam are connected in sequence.
[0007] In some embodiments of the present application, the width of the fire ring gap gradually increases in the vertical upward direction.
[0008] In some embodiments of the present application, an expansion angle opening upward is formed between the inner side wall and the outer side wall of the fire ring seam, and the angle range of the expansion angle is between 10° and 30°.
[0009] In some embodiments of the present application, the fire cover includes an inner ring fire cover and an outer ring fire cover, and the outer ring fire cover is arranged around the circumference of the inner ring fire cover; the fire cavity includes an inner ring fire cavity formed below the bottom of the inner ring fire cover and an outer ring fire cavity formed below the bottom of the outer ring fire cover; the ring fire seam includes an inner ring fire seam provided on the inner ring fire cover and / or an outer ring fire seam provided on the outer ring fire cover.
[0010] In some embodiments of the present application, the annular seam hole in the inner ring fire seam is an inner annular seam hole, and the inner annular seam hole is arc-shaped; the connecting ribs formed between adjacent inner annular seam holes are inner connecting ribs, and the communicating area formed above the top of the inner connecting ribs is an inner communicating area; an inner ventilation hole is provided on the inner connecting rib, and the inner ventilation hole extends vertically up and down, the top of the inner ventilation hole is connected to the inner communicating area, and the bottom of the inner ventilation hole is connected to the inner ring fire cavity.
[0011] In some embodiments of the present application, the annular seam hole in the outer ring fire seam is an outer annular seam hole, and the outer annular seam hole is arc-shaped; the connecting ribs formed between adjacent outer annular seam holes are external connecting ribs, and the connecting area formed above the top of the external connecting ribs is the external connecting area; the external connecting ribs are provided with external air holes, and the external air holes extend up and down at an angle, the top of the external air holes is connected to the external connecting area, and the bottom of the external air holes is connected to the outer ring fire cavity.
[0012] In some embodiments of the present application, the outer ring fire cover is provided with two outer ring fire seams, namely a first outer ring fire seam and a second outer ring fire seam, the second outer ring fire seam is arranged around the circumference of the first outer ring fire seam at intervals; a plurality of first outer ring seam holes are formed in the first outer ring fire seam, a first outer connecting rib is formed between adjacent first outer ring seam holes, and a first outer connecting area is formed above the top of the first outer connecting rib; a plurality of second outer ring seam holes are formed in the second outer ring fire seam, a second outer connecting rib is formed between adjacent second outer ring seam holes, and a second outer connecting area is formed above the top of the second outer connecting rib; A ring-shaped connecting groove is recessed on the bottom surface of the outer ring fire cover, and the connecting groove is located at the top of the outer ring fire cavity and between the first outer ring fire seam and the second outer ring fire seam; the first external connecting rib and the second external connecting rib are respectively arranged on the inner and outer sides of the connecting groove; the external air vent formed on the first external connecting rib is a first external air vent, and the first external air vent extends obliquely downward from the first external connecting area toward the connecting groove; the external air vent formed on the second external connecting rib is a second external air vent, and the second external air vent extends obliquely downward from the second external connecting area toward the connecting groove.
[0013] In some embodiments of the present application, the burner also includes a burner head and a fire cover seat; the inner ring fire cover is arranged at the top center of the burner head, and the inner ring fire cavity is formed between the bottom surface of the inner ring fire cover and the top of the burner head; the fire cover seat is arranged at the top of the burner head and below the bottom of the outer ring fire cover; the outer ring fire cover is arranged on the top surface of the fire cover seat, and the outer ring fire cavity is formed between the top surface of the fire cover seat and the bottom surface of the outer ring fire cover.
[0014] In some embodiments of the present application, a central protrusion of the burner head is provided with a central tube extending upward, the inner ring fire cover is provided on the top of the central tube, and the inner ring fire cavity is formed between the bottom surface of the inner ring fire cover and the central tube; the fire cover seats are arranged around the periphery of the central tube at intervals, and the outer ring fire covers are arranged around the periphery of the inner ring fire cover at intervals to form an air supply channel between the outer ring fire cover and the inner ring fire cover; an air supply gap is formed between the bottom of the fire cover seat and the top surface of the burner head, and the air supply gap is connected to the air supply channel.
[0015] In some embodiments of the present application, a gas mixing chamber is provided in the burner head, and a support tube is convexly provided on the top surface of the burner head, and the support tube is communicated with the gas mixing chamber; the bottom of the fire cover seat is provided with a sleeve matching with the support tube, and the sleeve is communicated with the outer ring fire chamber; the sleeve is sleeved and supported on the support tube, and the sleeve is communicated with the support tube.
[0016] In some embodiments of the present application, a step groove is recessed at the bottom end of the sleeve, and when the sleeve is sleeved on the support tube, the top of the support tube is supported on the top surface of the step groove.
[0017] In some embodiments of the present application, the furnace head includes a furnace base and a furnace cover, and the furnace cover is arranged on the top of the furnace base; the furnace base, the center of the furnace cover and the inner ring fire cover enclose the inner ring fire cavity; the mixing gas cavity is formed between the top surface of the furnace base and the bottom surface of the furnace cover, and the mixing gas cavity is arranged around the circumference of the inner ring fire cavity, and the support tube is formed on the top surface of the furnace cover; an outer ring ejector tube and an inner ring ejector tube are provided on the outer peripheral wall of the furnace base, the outer ring ejector tube is connected with the mixing gas cavity, and the inner ring ejector tube is connected with the inner ring fire cavity.
[0018] In some embodiments of the present application, the gas mixing chambers are provided with multiple and are arranged at intervals around the circumference of the inner ring fire chamber, the multiple gas mixing chambers are connected in sequence along the circumferential direction, and the outer ring ejector pipe is connected to one of the gas mixing chambers; a plurality of the support tubes are convexly provided on the top surface of the furnace cover, and the plurality of the support tubes are correspondingly arranged above the top of the gas mixing chamber, and the bottom of the fire cover seat is provided with a plurality of the sleeves, and the plurality of sleeves are correspondingly sleeved and supported on the plurality of support tubes.
[0019] According to another aspect of the present invention, the present invention further provides a gas stove, which includes the burner mentioned above.
[0020] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:
[0021] In the burner of the embodiment of the present invention, a fire ring seam is provided on the fire cover, and the fire ring seam is an annular structure and is arranged around the center of the fire cover; a plurality of connecting ribs provided at the bottom of the fire ring seam are used to connect the inner and outer sides of the fire ring seam, and at the same time, the fire ring seam is divided into a plurality of arc-shaped annular seam holes, and the fire ring seam passes through the fire cover vertically up and down at the annular seam holes, and the bottom ends of the annular seam holes are connected with the fire cavity, so that the gas in the fire cavity can enter the annular seam holes of the fire ring seam to burn and form an arc-shaped gap fire; the gap fires at the annular seam holes are connected to each other by using the connecting area provided on the upper side of the connecting ribs, so that the gap fires at the annular seam holes can be connected to each other, thereby forming a ring seam fire; since the gap fires at adjacent annular seam holes are connected to each other, they can play a flame stabilizing role on each other, so the flame stability of the ring seam fire is better, thereby effectively improving the flame stability of the burner; and since the flame stability of the annular seam holes is better, the heat intensity at the annular seam holes can be made larger, and the annular seam holes can be used to heat the bottom of the cookware vertically upward, thereby effectively improving the thermal efficiency of the burner. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic structural diagram of a burner according to an embodiment of the invention.
[0023] Figure 2 yes Figure 1 Schematic diagram of the decomposition structure.
[0024] Figure 3 yes Figure 1 Top view of the .
[0025] Figure 4 yes Figure 3 Sectional view along AA direction.
[0026] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area B in the middle.
[0027] Figure 6 yes Figure 4 Schematic diagram of the enlarged structure of the C area in the middle.
[0028] Figure 7 yes Figure 3 Schematic diagram of the structure of the inner ring fire cover and the outer ring fire cover.
[0029] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the D area in the middle.
[0030] Fig. 9 yes Figure 7 Schematic diagram of the enlarged structure of the E area in the middle.
[0031] Fig.10 yes Figure 8 Schematic diagram of the structure from another perspective.
[0032] Fig.11 yes Fig.10 Schematic diagram of the enlarged structure of the F region in the middle.
[0033] Fig.12 yes Fig.10 Schematic diagram of the enlarged structure of the G region in the middle.
[0034] Fig.13 yes Figure 2 Schematic diagram of the structure of the medium fire cover.
[0035] Fig.14 yes Figure 2 Schematic diagram of the structure of the middle furnace head.
[0036] Fig.15 yes Fig.14 Schematic diagram of the decomposition structure.
[0037] Fig.16 yes Fig.15 Top view of the center furnace base.
[0038] The accompanying drawings are described as follows: 1. furnace head; 10. gas mixing chamber; 101. connecting groove; 11. furnace base; 12. furnace cover; 121. support pipe; 13. center pipe; 14. ventilation channel; 15. ventilation pipe; 16. air supply channel; 17. air supply gap; 18. outer ring ejector pipe; 19. inner ring ejector pipe; 2. inner ring fire cover; 20. inner ring fire cavity; 21. inner ring fire seam; 211. inner ring seam hole; 212. inner connecting area; 22. inner connecting rib; 221. inner ventilation hole; 23. inner fire transfer hole; 23a. first inner fire transfer hole; 23b. second inner fire transfer hole; 24. first ring wall; 25. second ring wall; 3. outer ring fire cover; 30. outer ring fire cavity; 31. outer ring fire seam; 31a. first inner fire transfer hole; 31b. second inner fire transfer hole; 32. first ring wall; 33. second ring wall; 34. outer ring fire cover; 35. outer ring fire cavity; 36. outer ring fire seam; 37. second inner fire transfer hole; 38. outer ring fire cavity; 39. outer ring fire seam; 40. outer ring fire cavity; 41. outer ring fire seam; 42. outer ring fire cavity; 43. outer ring fire cavity; 44. outer ring fire cavity; 45. outer ring fire cavity; 46. outer ring fire cavity; 47. outer ring fire cavity; 48. outer ring fire cavity; 49. outer ring fire cavity; 50. outer ring fire cavity; 51. outer ring fire cavity; 52. outer ring fire cavity; 53. outer ring fire cavity; 54. outer ring fire cavity; 55. outer ring fire cavity; 56. outer ring fire cavity; 57. outer ring fire cavity; 58. outer An outer ring fire seam; 31b, a second outer ring fire seam; 311, an outer ring seam hole; 311a, a first outer ring seam hole; 311b, a second outer ring seam hole; 312, an outer connecting area; 312a, a first outer connecting area; 312b, a second outer connecting area; 32, an outer connecting rib; 32a, a first outer connecting rib; 32b, a second outer connecting rib; 321, an outer vent; 321a, a first outer vent; 321b, a second outer vent; 33, an outer fire transmission hole; 34, a connecting groove; 35, a first ring convex; 36, a second ring convex; 4, a fire cover seat; 41, a first supporting wall; 42, a second supporting wall; 43, a sleeve; 44, a step groove; 5, an ignition needle; 5a, a first ignition needle; 5b, a second ignition needle. DETAILED DESCRIPTION
[0039] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.
[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0043] In the related multi-ring gas stoves, the fire holes of the fire cover are usually round fire holes or strip fire holes, so when in use, problems such as unstable flame and low combustion efficiency are likely to occur.
[0044] Figure 1 It is a schematic structural diagram of a burner according to an embodiment of the invention. Figure 2 yes Figure 1 Schematic diagram of the decomposition structure. Figure 3 yes Figure 1 Top view of the . Figure 4 yes Figure 3 Sectional view along AA direction.
[0045] See also Figures 1 to 4 As shown, the burner provided by the embodiment of the present invention mainly includes a burner head 1, an inner ring fire cover 2 and an outer ring fire cover 3.
[0046] The burner head 1 is used to provide installation space for the inner ring fire cover 2, the outer ring fire cover 3 and the fire cover seat 4.
[0047] The inner ring fire cover 2 is detachably arranged at the top center of the burner head 1. When the inner ring fire cover 2 is arranged at the top center of the burner head 1, an inner ring fire cavity 20 is formed between the bottom of the inner ring fire cover 2 and the top center of the burner head 1, that is, the inner ring fire cavity 20 is formed below the bottom of the inner ring fire cover 2. External gas can enter the inner ring fire cavity 20 and burn on the inner ring fire cover 2.
[0048] The outer ring fire cover 3 is arranged around the circumference of the inner ring fire cover 2, and an outer ring fire cavity 30 is formed below the bottom of the outer ring fire cover 3. The outer ring fire cavity 30 is arranged around the outer circumference of the inner ring fire cavity 20. External gas can enter the outer ring fire cavity 30 and burn on the outer ring fire cover 3.
[0049] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of area B in the middle. Figure 6 yes Figure 4 Schematic diagram of the enlarged structure of the C area in the middle. Figure 7 yes Figure 3 Schematic diagram of the structure of the inner ring fire cover 2 and the outer ring fire cover 3. Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of the D area in the middle. Fig. 9 yes Figure 7 Schematic diagram of the enlarged structure of the E area in the middle.
[0050] See also Figures 3 to 9 As shown, in some embodiments, both the inner ring fire cover 2 and the outer ring fire cover 3 are provided with ring fire seams. The ring fire seams include an inner ring fire seam 21 on the inner ring fire cover 2 and an outer ring fire seam 31 on the outer ring fire cover 3.
[0051] Among them, on the inner ring fire cover 2, the inner ring fire seam 21 is annular and arranged around the center of the inner ring fire cover 2. The inner ring fire seam 21 vertically penetrates the top wall of the inner ring fire cover 2, the bottom of the inner ring fire seam 21 is connected to the inner ring fire cavity 20, and the top of the inner ring fire seam 21 is connected to the space above the top of the inner ring fire cover 2. Therefore, the gas in the inner ring fire cavity 20 can flow to the inner ring fire seam 21 for combustion, and then form an inner ring flame above the top of the inner ring fire cover 2, and the inner ring flame is an annular gap fire.
[0052] Fig.10 yes Figure 8 Schematic diagram of the structure from another perspective. Fig.11 yes Fig.10 Schematic diagram of the enlarged structure of the F region in the middle.
[0053] See also Figures 7 to 11 As shown, in some embodiments, the bottom area of the inner ring fire seam 21 is provided with a plurality of spaced inner connecting ribs 22, the inner connecting ribs 22 extend in the radial direction of the inner ring fire cover 2, and the inner and outer ends of the inner connecting ribs 22 are respectively connected to the inner and outer side walls of the inner ring fire seam 21, thereby connecting the fire cover areas on the inner and outer sides of the inner ring fire seam 21 to each other through the inner connecting ribs 22. At the same time, the plurality of inner connecting ribs 22 separate the inner ring fire seam 21 into a plurality of circumferentially spaced inner ring seam holes 211, and the inner ring seam holes 211 are in an arc or circular arc structure. Therefore, the inner ring fire seam 21 passes through the top wall of the inner ring fire cover 2 vertically upward and downward at the inner ring seam holes 211, the bottom of the inner ring seam holes 211 is directly connected to the inner ring fire cavity 20, and the top of the inner ring seam holes 211 is connected to the space above the top of the inner ring fire cover 2.
[0054] In some embodiments, the plurality of inner connecting ribs 22 are arranged at equal intervals in the circumferential direction, so that the arc lengths of each inner annular slit hole 211 are equal, and thus the shapes and sizes of each inner annular slit hole 211 are consistent.
[0055] In some embodiments, an inner connecting area 212 is formed above the top of the inner connecting rib 22. The inner connecting area 212 is located in the inner ring fire gap 21. The inner connecting area 212 is located between two adjacent inner ring gap holes 211, and the inner connecting area 212 connects the inner ring gap holes 211 on both sides of the adjacent inner ring gap holes, so that the multiple inner ring gap holes 211 in the inner ring fire gap 21 are connected in sequence. Therefore, the gas in the inner ring fire cavity 20 can enter each inner ring gap hole 211 and the inner connecting area 212 at the same time for combustion, and an arc-shaped gap fire is formed at each inner ring gap hole 211. The flames in the two adjacent inner ring gap holes 211 are connected as a whole at the inner connecting area 212, thereby forming an annular gap fire, that is, forming an annular inner ring gap fire. Since the inner ring gap fires at each inner ring gap hole 211 are connected to each other, they can play a flame stabilizing role with each other, so the flame stability of the inner ring gap fire is better. And because the flame stability of the inner ring slit hole 211 is good, the heat intensity at the inner ring slit hole 211 can be made larger, and because the inner ring slit hole 211 heats the bottom of the cookware vertically upward, the thermal efficiency of the burner can be effectively improved.
[0056] See also Figure 8 and Fig.11As shown, in some embodiments, an inner vent hole 221 is provided on the inner connecting rib 22, and the inner vent hole 221 extends vertically up and down, the top of the inner vent hole 221 is connected to the inner connecting area 212, and the bottom of the inner vent hole 221 is connected to the inner ring fire cavity 20. Therefore, the gas in the inner ring fire cavity 20 can also enter the inner connecting area 212 through the inner vent hole 221 to burn, and then form a flame at the inner vent hole 221, and the flame at this place can make the flame connection between adjacent inner ring seam holes 211 tighter, and further improve the flame stability of the inner ring seam fire.
[0057] See also Figure 5 As shown, in some embodiments, the width of the inner ring fire gap 21 gradually increases in the vertical upward direction. Therefore, the bottom port of the inner ring gap hole 211 is smaller than the top port thereof, and the diameter of the inner ring gap hole 211 gradually increases from bottom to top, that is, the inner ring gap hole 211 gradually expands along the direction of gas outflow, thereby reducing the occurrence of flame separation at the inner ring gap hole 211, which is conducive to further improving the flame stability of the inner ring gap fire.
[0058] In some embodiments, an inner expansion angle α with the opening facing upward is formed between the inner side wall and the outer side wall of the inner ring fire seam 21, and the angle range of the inner expansion angle α is between 10° and 30°.
[0059] In some embodiments, the inner wall of the inner ring fire seam 21 extends vertically upward, and the outer wall of the inner ring fire seam 21 extends inclined upward and outward, thereby forming an inner expansion angle with an opening facing upward between the inner wall and the outer wall of the inner ring fire seam 21.
[0060] It should be noted that, in some other embodiments, the inner wall of the inner ring fire seam 21 may also be inclined upward and extend inward, and the outer wall of the inner ring fire seam 21 may also extend vertically upward, thereby forming an inner expansion angle with an opening facing upward between the inner wall and the outer wall of the inner ring fire seam 21.
[0061] See also Figures 3 to 8 As shown, in some embodiments, an inner fire transfer hole 23 is provided on the top surface of the inner fire ring cover 2, and the inner fire transfer hole 23 is in a long strip shape and extends in the radial direction, and the inner end of the inner fire transfer hole 23 extends to the inner fire ring seam 21, and the outer end of the inner fire transfer hole 23 extends to the outer peripheral wall of the inner fire ring cover 2. At the same time, an ignition needle 5 is provided on the outer peripheral side of the inner fire ring cover 2, and the ignition needle 5 is arranged opposite to the inner fire transfer hole 23. Therefore, the gas in the inner fire ring seam 21 can flow to the surrounding of the ignition needle 5 through the inner fire transfer hole 23, and then be ignited by the ignition needle 5.
[0062] See also Figures 3 to 9As shown, on the outer ring fire cover 3, the outer ring fire gap 31 is annular and arranged around the center of the outer ring fire cover 3. The outer ring fire gap 31 vertically penetrates the top wall of the outer ring fire cover 3, the bottom of the outer ring fire gap 31 is connected to the outer ring fire cavity 30, and the top of the outer ring fire gap 31 is connected to the space above the top of the outer ring fire cover 3. Therefore, the gas in the outer ring fire cavity 30 can flow to the outer ring fire gap 31 for combustion, and then form an outer ring flame above the top of the outer ring fire cover 3, and the outer ring flame is an annular gap fire.
[0063] Fig.12 yes Fig.10 Schematic diagram of the enlarged structure of the G region in the middle.
[0064] See also Figures 7 to 12 As shown, in some embodiments, the bottom area of the outer ring fire seam 31 is provided with a plurality of spaced-apart external connecting ribs 32, the external connecting ribs 32 extend in the radial direction of the outer ring fire cover 3, and the inner and outer ends of the external connecting ribs 32 are respectively connected to the inner and outer side walls of the outer ring fire seam 31, thereby connecting the fire cover areas on the inner and outer sides of the outer ring fire seam 31 to each other through the external connecting ribs 32. At the same time, the plurality of external connecting ribs 32 separate the outer ring fire seam 31 into a plurality of circumferentially spaced-apart outer ring seam holes 311, and the outer ring seam holes 311 are in an arc or circular arc structure. Therefore, the outer ring fire seam 31 passes through the top wall of the outer ring fire cover 3 vertically upward and downward at the outer ring seam holes 311, the bottom of the outer ring seam holes 311 is directly connected to the outer ring fire cavity 30, and the top of the outer ring seam holes 311 is connected to the space above the top of the outer ring fire cover 3.
[0065] In some embodiments, the plurality of external connection ribs 32 are arranged at equal intervals in the circumferential direction, so that the arc lengths of each outer annular slit hole 311 are equal, and thus the shapes and sizes of each outer annular slit hole 311 are consistent.
[0066] In some embodiments, an outer connecting area 312 is formed above the top of the outer connecting rib 32. The outer connecting area 312 is located in the outer ring fire gap 31. The outer connecting area 312 is located between two adjacent outer ring gap holes 311, and the outer connecting area 312 connects the outer ring gap holes 311 on both sides of the adjacent outer ring gap holes 311, so that the multiple outer ring gap holes 311 in the outer ring fire gap 31 are connected in sequence. Therefore, the gas in the outer ring fire cavity 30 can enter each outer ring gap hole 311 and the outer connecting area 312 at the same time for combustion, and an arc gap fire is formed at each outer ring gap hole 311. The flames in the two adjacent outer ring gap holes 311 are connected as a whole at the outer connecting area 312, thereby forming an annular gap fire, that is, forming an annular outer ring gap fire. Since the outer ring gap fires at each outer ring gap hole 311 are connected to each other, they can play a flame stabilizing role with each other, so the flame stability of the outer ring gap fire is better. And because the flame stability of the outer ring slit hole 311 is good, the heat intensity at the outer ring slit hole 311 can be made larger, and because the outer ring slit hole 311 heats the bottom of the cookware vertically upward, the thermal efficiency of the burner can be effectively improved.
[0067] See also Fig. 9 and Fig.12 As shown, in some embodiments, an outer vent hole 321 is provided on the outer connecting rib 32, and the outer vent hole 321 extends vertically up and down, and the top of the outer vent hole 321 is connected to the outer connecting area 312, and the bottom of the outer vent hole 321 is connected to the outer ring fire cavity 30. Therefore, the gas in the outer ring fire cavity 30 can also enter the outer connecting area 312 through the outer vent hole 321 for combustion, and then form a flame at the outer vent hole 321, and the flame at this place can make the flame connection between adjacent outer ring slit holes 311 tighter, and further improve the flame stability of the outer ring slit fire.
[0068] See also Figure 6 As shown, in some embodiments, the width of the outer ring fire gap 31 gradually increases in the vertical upward direction. Therefore, the bottom port of the outer ring gap hole 311 is smaller than the top port thereof, and the diameter of the outer ring gap hole 311 gradually increases from bottom to top, that is, the outer ring gap hole 311 gradually expands along the direction of gas outflow, thereby reducing the occurrence of flame separation at the outer ring gap hole 311, which is conducive to further improving the flame stability of the outer ring gap fire.
[0069] In some embodiments, an upwardly opening outer expansion angle β is formed between the inner side wall and the outer side wall of the outer ring fire seam 31 , and the angle range of the outer expansion angle β is between 10° and 30°.
[0070] In some embodiments, the inner wall of the outer ring fire seam 31 is inclined upward and extends inward, and the outer wall of the inner ring fire seam 21 is inclined upward and extends outward, thereby forming an upward-opening outward expansion angle between the inner and outer walls of the outer ring fire seam 31 .
[0071] It should be noted that, in some other embodiments, the inner wall of the outer ring fire seam 31 may also extend vertically upward, and only the outer wall is inclined upward and extends outward; or, the outer wall of the outer ring fire seam 31 may also extend vertically upward, and only the inner wall is inclined upward and extends inward; thus, an outer expansion angle with an opening facing upward may be formed between the inner wall and the outer wall of the outer ring fire seam 31.
[0072] See also Figure 6 As shown, in some embodiments, there are two outer ring fire seams 31, and the two outer ring fire seams 31 are respectively a first outer ring fire seam 31a and a second outer ring fire seam 31b. The first outer ring fire seam 31a and the second outer ring fire seam 31b are both annular structures. The second outer ring fire seam 31b is arranged around the outer periphery of the first outer ring fire seam 31a at intervals.
[0073] The bottom ends of the first outer ring fire seam 31a and the second outer ring fire seam 31b are both connected to the outer ring fire cavity 30, and the top ends of the first outer ring fire seam 31a and the second outer ring fire seam 31b are both connected to the top area of the outer ring fire cover 3. Therefore, the gas in the outer ring fire cavity 30 can enter the first outer ring fire seam 31a and the second outer ring fire seam 31b respectively to burn, forming two outer ring flames.
[0074] It should be noted that, in other embodiments, the number of outer ring fire seams 31 can be multiple, and the multiple outer ring fire seams 31 are arranged in sequence inside and outside, and the number of outer ring fire seams 31 can be adjusted as needed, which is not limited here. In addition, in other embodiments, the number of inner ring fire seams 21 can also be multiple, and the number can be adjusted as needed, which is not limited here.
[0075] See also Figure 6 As shown, in some embodiments, a plurality of first outer ring slit holes 311a are formed in the first outer ring slit 31a, a first outer connecting rib 32a is formed between adjacent first outer ring slit holes 311a, and a first outer connecting area 312a is formed above the top of the first outer connecting rib 32a. At the same time, a plurality of second outer ring slit holes 311b are formed in the second outer ring slit 31b, a second outer connecting rib 32b is formed between adjacent second outer ring slit holes 311b, and a second outer connecting area 312b is formed above the top of the second outer connecting rib 32b. The outer vent holes 321 formed on the first outer connecting rib 32a are first outer vent holes 321a, and the outer vent holes 321 formed on the second outer connecting rib 32b are second outer vent holes 321b. The bottom ends of the first outer vent hole 321a and the second outer vent hole 321b are both connected to the outer ring fire cavity 30, the top end of the first outer vent hole 321a is connected to the first outer connection area 312a, and the top end of the second outer vent hole 321b is connected to the second outer connection area 312b. Therefore, the gas in the outer ring fire cavity 30 can enter the first outer connection area 312a through the first outer vent hole 321a for combustion, and enter the second outer connection area 312b through the second outer vent hole 321b for combustion, so that the flames at the adjacent first outer ring slot holes 311a are stably connected, and the flames at the adjacent second outer ring slot holes 311b are stably connected.
[0076] In some embodiments, a ring-shaped connecting groove 34 is concavely provided on the bottom surface of the outer ring fire cover 3. The connecting groove 34 is located in the top area of the outer ring fire cavity 30 and between the first outer ring fire seam 31a and the second outer ring fire seam 31b, and the first outer connecting rib 32a and the second outer connecting rib 32b are respectively arranged on the inner and outer sides of the connecting groove 34. At the same time, the first outer vent hole 321a extends obliquely downward from the first outer connecting area 312a toward the connecting groove 34, and the second outer vent hole 321b extends obliquely downward from the second outer connecting area 312b toward the connecting groove 34, so that the first outer connecting area 312a and the second outer connecting area 312b are both connected to the connecting groove 34, and the gas in the outer ring fire cavity 30 can flow from the connecting groove 34 to the first outer connecting area 312a through the first outer vent hole 321a for combustion, and flow to the second outer connecting area 312b through the second outer vent hole 321b for combustion.
[0077] It should be noted that, in other embodiments, only the inner ring fire slit 21 may be provided on the inner ring fire cover 2, and the outer ring fire slit 31 on the outer ring fire cover 3 may be replaced by a round fire hole or a strip fire hole. Alternatively, only the outer ring fire slit 31 may be provided on the outer ring fire cover 3, and the inner ring fire slit 21 on the inner ring fire cover 2 may be replaced by a round fire hole or a strip fire hole. Figures 3 to 7 As shown, in some embodiments, an outer fire hole 33 is provided on the top surface of the outer fire cover 3, and the outer fire hole 33 extends in the radial direction, and the inner end of the outer fire hole 33 extends to the inner peripheral wall of the outer fire cover 3, and the outer end of the inner fire hole 23 extends to the first outer fire seam 31a and the second outer fire seam 31b. At the same time, an ignition needle 5 is provided on the inner side of the outer fire cover 3, and the ignition needle 5 is arranged opposite to the outer fire hole 33. Therefore, the gas in the first outer fire seam 31a and the second outer fire seam 31b can flow to the surrounding of the ignition needle 5 through the outer fire hole 33, and then be ignited by the ignition needle 5.
[0078] See also Figure 3 As shown, in some embodiments, two inner fire transfer holes 23 are provided on the top surface of the inner ring fire cover 2, namely, the first inner fire transfer hole 23a and the second inner fire transfer hole 23b, and the first inner fire transfer hole 23a and the second inner fire transfer hole 23b are arranged at intervals in the circumferential direction. The first inner fire transfer hole 23a is arranged opposite to the outer fire transfer hole 33, that is, the first inner fire transfer hole 23a and the outer fire transfer hole 33 are located above the same radial direction. The ignition needle 5 includes a first ignition needle 5a and a second ignition needle 5b, wherein the first ignition needle 5a is located between the first inner fire transfer hole 23a and the outer fire transfer hole 33, and the second ignition needle 5b is arranged opposite to the second inner fire transfer hole 23b. Therefore, when only the inner ring flame is needed, only the second ignition needle 5b can be used for ignition, and then only the inner ring fire seam 21 is ignited. When only the inner ring flame and the outer ring flame are needed, the first ignition needle 5a can be used for ignition, and then the inner ring fire seam 21 and the outer ring fire seam 31 can be ignited at the same time.
[0079] Fig.13 yes Figure 2 A schematic structural diagram of the medium fire cover seat 4.
[0080] See also Fig.13 , and combined with Figures 1 to 6 As shown, in some embodiments, a fire cover seat 4 is provided above the top of the burner head 1, and the fire cover seat 4 is provided below the bottom of the outer ring fire cover 3. The fire cover seat 4 is annular, and the contour shape of the fire cover seat 4 is consistent with the contour shape of the outer ring fire cover 3. The outer ring fire cover 3 is covered on the top surface of the fire cover seat 4, and then an outer ring fire cavity 30 is formed between the top surface of the fire cover seat 4 and the bottom surface of the outer ring fire cover 3.
[0081] In some embodiments, the inner edge of the fire cover seat 4 is convexly provided with a first support wall 41 extending upward, the first support wall 41 is annular and arranged around the inner peripheral edge of the fire cover seat 4. The outer edge of the fire cover seat 4 is convexly provided with a second support wall 42 extending upward, the second support wall 42 is annular and arranged around the outer peripheral edge of the fire cover seat 4, and the second support wall 42 is arranged around the outer periphery of the first support wall 41 at intervals. At the same time, the inner edge of the outer ring fire cover 3 is convexly provided with a first annular protrusion 35 extending downward, the first annular protrusion 35 is annular and arranged around the inner peripheral edge of the outer ring fire cover 3. The outer edge of the outer ring fire cover 3 is convexly provided with a second annular protrusion 36 extending downward, the second annular protrusion 36 is annular and arranged around the outer peripheral edge of the outer ring fire cover 3, and the second annular protrusion 36 is arranged around the outer periphery of the first annular protrusion 35 at intervals.
[0082] When the outer ring fire cover 3 is covered on the top surface of the fire cover seat 4, the first ring protrusion 35 is connected to the first support wall 41 up and down, and the bottom end of the first ring protrusion 35 is supported on the top of the first support wall 41; at the same time, the second ring protrusion 36 is connected to the second support wall 42 up and down, and the bottom end of the second ring protrusion 36 is supported on the top of the second support wall 42, so that the outer ring fire cavity 30 can be enclosed between the first ring protrusion 35, the first support wall 41, the second ring protrusion 36 and the second support wall 42.
[0083] Fig.14 yes Figure 2 A schematic structural diagram of the middle furnace head 1. Fig.15 yes Fig.14 Schematic diagram of the decomposition structure. Fig.16 yes Fig.15 A top view of the middle furnace seat 11.
[0084] See also Figures 14 to 16 , and combined with Figures 2 to 5 As shown, in some embodiments, a center tube 13 extending upward is protruded from the center of the burner head 1, and an inner ring fire cover 2 is covered on the top of the center tube 13, thereby forming an inner ring fire cavity 20 between the bottom surface of the inner ring fire cover 2 and the center tube 13.
[0085] In some embodiments, a ventilation channel 14 is formed in the center of the central tube 13 and the inner ring fire cover 2. The ventilation channel 14 vertically penetrates the inner ring fire cover 2 and the inner ring fire cavity 20. The inner ring fire cover 2 and the inner ring fire cavity 20 are arranged around the outer periphery of the ventilation channel 14. The top end of the ventilation channel 14 is connected to the top area of the inner ring fire cover 2, and the bottom end of the ventilation channel 14 is connected to the external space of the burner head 1. Therefore, when the gas in the inner ring fire cavity 20 burns in the inner ring fire seam 21 of the inner ring fire cover 2, the air in the external space can be supplied to the top area of the inner ring fire cover 2 through the ventilation channel 14 for secondary air supply, thereby improving the combustion efficiency of the flame in the inner ring fire seam 21.
[0086] In some embodiments, a ventilation pipe 15 extending upward is protruded from the center of the burner head 1. The ventilation pipe 15 is formed on the inner side of the central tube 13. The central tube 13 is arranged around the outer periphery of the ventilation pipe 15. The ventilation channel 14 is formed inside the ventilation pipe 15. The inner ring fire chamber 20 is formed between the outer peripheral wall of the ventilation pipe 15 and the inner peripheral wall of the central tube 13.
[0087] In some embodiments, the inner edge of the inner ring fire cover 2 is provided with a first ring wall 24 extending downward, and the first support wall 41 is annular and arranged around the inner peripheral edge of the inner ring fire cover 2. The outer edge of the inner ring fire cover 2 is provided with a second ring wall 25 extending downward, and the second ring wall 25 is annular and arranged around the outer peripheral edge of the inner ring fire cover 2. The second ring wall 25 is arranged around the outer periphery of the first ring wall 24 at intervals.
[0088] When the inner ring fire cover 2 is installed on the top of the central tube 13, the first ring wall 24 is connected to the central tube 13 up and down, and the bottom end of the first ring wall 24 is supported on the top of the central tube 13; at the same time, the second ring wall 25 is connected to the ventilation pipe 15 up and down, and the bottom end of the second ring wall 25 is supported on the top of the ventilation pipe 15, so that the inner ring fire cavity 20 can be enclosed between the first ring wall 24, the central tube 13, the second ring wall 25 and the ventilation pipe 15.
[0089] See also Figures 1 to 6As shown, in some embodiments, the fire cover seat 4 is arranged around the outer periphery of the central tube 13 at intervals, and the outer ring fire cover 3 is arranged around the outer periphery of the inner ring fire cover 2 at intervals, thereby forming an air supply channel 16 between the outer ring fire cover 3 and the inner ring fire cover 2. At the same time, an air supply gap 17 is formed between the bottom of the fire cover seat 4 and the top surface of the burner head 1, the top of the air supply channel 16 is connected to the top area of the outer ring fire cover 3 and the inner ring fire cover 2, the inner end of the air supply gap 17 is connected to the bottom end of the air supply channel 16, and the outer end of the air supply gap 17 is connected to the external space of the burner head 1. Therefore, when the flames are burning on the inner ring fire cover 2 and the outer ring fire cover 3, the air in the external space can be secondary supplied to the top area of the inner ring fire cover 2 and the outer ring fire cover 3 through the ventilation channel 14, thereby respectively improving the combustion efficiency of the flames in the inner ring fire gap 21 and the outer ring fire gap 31.
[0090] See also Figure 6 , Figures 13 to 16 As shown, in some embodiments, a gas mixing chamber 10 is provided inside the burner head 1, and a support tube 121 is convexly provided on the top surface of the burner head 1, and the bottom end of the support tube 121 is connected to the gas mixing chamber 10. At the same time, the bottom of the fire cover seat 4 is provided on a sleeve 43 matched with the support tube 121, and the top of the sleeve 43 is connected to the outer ring fire chamber 30. When the fire cover seat 4 is provided on the top of the burner head 1, the sleeve 43 is connected to the support tube 121 up and down, and the bottom end of the sleeve 43 is detachably sleeved and supported on the top of the support tube 121, and the bottom end of the sleeve 43 is connected to the top of the support tube 121, and then the outer ring fire chamber 30 can be connected to the gas mixing chamber 10 in the burner head 1 through the sleeve 43 and the support tube 121. External gas can first enter the gas mixing chamber 10, and then enter the outer ring fire chamber 30 through the sleeve 43 and the inside of the support tube 121, and then flow into the outer ring fire seam 31 for combustion.
[0091] In some embodiments, there are multiple sleeves 43, and the multiple sleeves 43 are arranged at intervals on the bottom surface of the fire cover seat 4. At the same time, there are multiple support tubes 121, and the multiple support tubes 121 are arranged at intervals on the top surface of the burner head 1. When the fire cover seat 4 is arranged on the top of the burner head 1, the multiple sleeves 43 are sleeved and supported on the top of the support tube 121 in a one-to-one correspondence. Therefore, the gas in the gas mixing chamber 10 can enter the outer ring fire chamber 30 through the multiple sleeves 43 and the support tube 121 at the same time, thereby improving the gas supply efficiency of the outer ring fire chamber 30 and facilitating the improvement of the combustion efficiency in the outer ring fire seam 31.
[0092] See also Figure 6 As shown, in some embodiments, a step groove 44 with an opening facing downward is recessed on the inner peripheral wall of the bottom end of the sleeve 43. When the sleeve 43 is sleeved on the support tube 121, the top surface of the support tube 121 is supported on the groove top surface of the step groove 44, and the outer peripheral wall of the top of the support tube 121 is in contact with the groove side wall of the step groove 44, thereby ensuring the sealing of the connection between the sleeve 43 and the support tube 121.
[0093] It should be noted that, in other embodiments, the fire cover seat 4 may also be integrally formed in the top area of the burner head 1 , and in this case, the ventilation gap may be directly opened on the outer peripheral wall of the burner head 1 .
[0094] See also Figures 14 to 16 As shown, in some embodiments, the furnace head 1 includes a furnace base 11 and a furnace cover 12, and the furnace cover 12 is arranged on the top of the furnace base 11, so that the gas mixing chamber 10 can be enclosed between the top surface of the furnace base 11 and the bottom surface of the furnace cover 12. The support pipe 121 is formed on the top surface of the furnace cover 12.
[0095] In some embodiments, the center tube 13 and the vent pipe 15 are divided into two sections, upper and lower. The upper section of the center tube 13 is formed on the furnace cover 12, and the lower section of the center tube 13 is formed on the furnace base 11, and the upper section of the center tube 13 and the lower section of the center tube 13 are directly connected to each other up and down. The upper section of the vent pipe 15 is formed on the furnace cover 12, and the lower section of the vent pipe 15 is formed on the furnace base 11, and the upper section of the vent pipe 15 and the lower section of the vent pipe 15 are directly connected to each other up and down. When the inner ring fire cover 2 is covered on the top of the center tube 13, the inner ring fire cavity 20 can be enclosed between the center tube 13, the vent pipe 15 and the top surface of the inner ring fire cover 2, that is, the inner ring fire cavity 20 is enclosed between the center of the furnace base 11 and the furnace cover 12 and the top surface of the inner ring fire cover 2.
[0096] See also Figures 14 to 16 As shown, in some embodiments, when the furnace cover 12 is placed on the furnace base 11 , the gas mixing chamber 10 is arranged around the outer periphery of the central tube 13 , that is, the gas mixing chamber 10 is arranged around the circumference of the inner ring fire chamber 20 .
[0097] See also Figures 14 to 16 As shown, in some embodiments, an outer ring ejector tube 18 and an inner ring ejector tube 19 are respectively provided on the outer peripheral wall of the furnace base 11. Among them, the inner end of the outer ring ejector tube 18 is connected to the gas mixing chamber 10, and the outer end of the outer ring ejector tube 18 is used to connect external gas. The inner end of the inner ring ejector tube 19 is connected to the inner ring fire chamber 20, and the outer end of the inner ring ejector tube 19 is used to connect external gas. Therefore, the external gas can enter the outer ring fire chamber 30 through the outer ring ejector tube 18 and the gas mixing chamber 10 in sequence, and then burn at the outer ring fire seam 31 of the outer ring fire cover 3. At the same time, the external gas can enter the inner ring fire chamber 20 through the inner ring ejector tube 19, and then burn at the inner ring fire seam 21 of the inner ring fire cover 2.
[0098] See also Fig.15 and Fig.16As shown, in some embodiments, a plurality of gas mixing chambers 10 are provided, and the plurality of gas mixing chambers 10 are arranged around the inner ring fire chamber 20 at intervals. The plurality of gas mixing chambers 10 are sequentially connected along the circumferential direction, and the outer ring ejector pipe 18 is connected to one of the gas mixing chambers 10. At the same time, a plurality of support pipes 121 are convexly provided on the top surface of the furnace cover 12, and the plurality of support pipes 121 are arranged one by one above the top of the gas mixing chamber 10, and the bottom of the fire cover seat 4 is provided with a plurality of sleeves 43, and the plurality of sleeves 43 are sleeved and supported on the plurality of support pipes 121 one by one. Therefore, external gas can enter the plurality of gas mixing chambers 10 through the outer ring ejector pipe 18, and the plurality of gas mixing chambers 10 enter the outer ring fire chamber 30 at the same time through the corresponding support pipes 121 and sleeve 43 components, thereby improving the gas supply efficiency to the outer ring fire chamber 30.
[0099] It should be noted that the multiple gas mixing chambers 10 inside the burner head 1 can be arranged symmetrically, or evenly spaced around the circumference of the inner ring fire chamber 20 .
[0100] In some embodiments, connecting grooves 101 are formed between adjacent gas mixing chambers 10, and both ends of the connecting grooves 101 are respectively connected to a gas mixing chamber 10, that is, the adjacent gas mixing chambers 10 are connected to each other through the connecting grooves 101. There are multiple connecting grooves 101, so that the multiple gas mixing chambers 10 can be connected in sequence along the circumferential direction through the multiple connecting grooves 101.
[0101] See also Figures 1 to 4 As shown, in some embodiments, the burner head 1, the inner ring fire cover 2, the outer ring fire cover 3 and the fire cover seat 4 are all flat structures, so that the burner forms a flat design, which is beneficial to simplify the structure and improve the installation efficiency between the burner head 1, the inner ring fire cover 2, the outer ring fire cover 3 and the fire cover seat 4.
[0102] Based on the structure of the burner in the above-mentioned embodiments, an embodiment of the present invention further provides a gas stove, which mainly includes a shell and a burner, wherein the shell is a container structure with a hollow interior, and the exterior of the shell forms the outer shell of the gas stove. The interior space of the shell forms an installation cavity, which is used to provide an installation space for the burner. The burner adopts the structure of the burner in the above-mentioned embodiments, and the burner is arranged in the installation cavity. The top of the burner protrudes out of the top surface of the shell, that is, the top of the outer ring fire cover 3 and the top of the inner ring fire cover 2 protrude out of the top surface of the shell, so that the pot is mounted above the burner and heated by the burner, thereby realizing the cooking function.
[0103] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.
Claims
1. A burner, characterized in that: include: A fire cover, wherein the fire cover is provided with a fire ring seam which is in a ring shape and arranged around the center of the fire cover; a fire cavity formed below the bottom of the fire cover; The bottom of the fire ring seam is provided with a plurality of spaced connecting ribs, the inner and outer ends of the connecting ribs are respectively connected to the inner and outer side walls of the fire ring seam, and the plurality of connecting ribs separate the fire ring seam into a plurality of circumferentially spaced annular seam holes; The annular hole vertically penetrates the fire cover, and the bottom of the annular hole is directly connected with the fire cavity; A communication area is formed above the top of the connecting rib, the communication area is located in the fire ring seam, and the communication area is connected to the ring seam holes on two adjacent sides, so that the multiple ring seam holes in the fire ring seam are connected in sequence.
2. The burner according to claim 1, characterized in that In the vertical upward direction, the width of the fire ring gap gradually increases.
3. The burner according to claim 2, characterized in that An expansion angle with the opening facing upward is formed between the inner side wall and the outer side wall of the fire ring seam, and the angle range of the expansion angle is between 10° and 30°.
4. The burner according to claim 1, characterized in that The fire cover comprises an inner ring fire cover and an outer ring fire cover, wherein the outer ring fire cover is arranged around the circumference of the inner ring fire cover; The fire cavity comprises an inner ring fire cavity formed below the bottom of the inner ring fire cover and an outer ring fire cavity formed below the bottom of the outer ring fire cover; The fire ring seam includes an inner fire ring seam arranged on the inner fire ring cover and / or an outer fire ring seam arranged on the outer fire ring cover.
5. The burner according to claim 4, characterized in that The annular seam holes in the inner annular fire seam are inner annular seam holes, and the inner annular seam holes are arc-shaped; the connecting ribs formed between adjacent inner annular seam holes are inner connecting ribs, and the connecting area formed above the top of the inner connecting ribs is an inner connecting area; An inner vent hole is provided on the inner connecting rib, and the inner vent hole extends vertically up and down, the top of the inner vent hole is connected to the inner connecting area, and the bottom of the inner vent hole is connected to the inner fire ring cavity.
6. The burner according to claim 4, characterized in that The annular seam holes in the outer annular fire seam are outer annular seam holes, and the outer annular seam holes are arc-shaped; the connecting ribs formed between adjacent outer annular seam holes are outer connecting ribs, and the connecting area formed above the top of the outer connecting ribs is the outer connecting area; The external connection rib is provided with an external vent hole, which extends up and down obliquely, the top of the external vent hole is connected to the external connection area, and the bottom of the external vent hole is connected to the outer ring fire cavity.
7. The burner according to claim 6, characterized in that The outer ring fire cover is provided with two outer ring fire seams, namely a first outer ring fire seam and a second outer ring fire seam, wherein the second outer ring fire seams are arranged around the circumference of the first outer ring fire seam at intervals; A plurality of first outer ring seam holes are formed in the first outer ring seam, first outer connecting ribs are formed between adjacent first outer ring seam holes, and a first outer connecting area is formed above the top of the first outer connecting ribs; A plurality of second outer ring seam holes are formed in the second outer ring seam, second outer connecting ribs are formed between adjacent second outer ring seam holes, and a second outer connecting area is formed above the top of the second outer connecting ribs; A ring-shaped connecting groove is concavely provided on the bottom surface of the outer ring fire cover, and the connecting groove is located at the top of the outer ring fire cavity and between the first outer ring fire seam and the second outer ring fire seam; The first external connecting rib and the second external connecting rib are respectively arranged at the inner and outer sides of the connecting groove; The outer vent formed on the first outer connecting rib is a first outer vent, and the first outer vent extends obliquely downward from the first outer communication area toward the communication groove; The external vent formed on the second external connecting rib is a second external vent, and the second external vent extends obliquely downward from the second external communication area toward the communication groove.
8. The burner according to claim 4, characterized in that The burner also includes a burner head and a fire cover seat; The inner ring fire cover is arranged at the top center of the burner head, and the inner ring fire cavity is formed between the bottom surface of the inner ring fire cover and the top of the burner head; The fire cover seat is arranged on the top of the burner head and below the bottom of the outer ring fire cover; The outer ring fire cover is arranged on the top surface of the fire cover seat, and the outer ring fire cavity is formed between the top surface of the fire cover seat and the bottom surface of the outer ring fire cover.
9. The burner according to claim 8, characterized in that A central tube extending upward is convexly disposed at the center of the burner head, the inner ring fire cover is disposed on the top of the central tube, and the inner ring fire cavity is formed between the bottom surface of the inner ring fire cover and the central tube; The fire cover seats are arranged around the outer periphery of the central tube at intervals, and the outer ring fire covers are arranged around the outer periphery of the inner ring fire cover at intervals, so as to form an air supply channel between the outer ring fire cover and the inner ring fire cover; An air supply gap is formed between the bottom of the fire cover seat and the top surface of the burner head, and the air supply gap is connected to the air supply channel.
10. The burner according to claim 9, characterized in that A gas mixing chamber is provided in the burner head, and a support tube is convexly provided on the top surface of the burner head, and the support tube is connected with the gas mixing chamber; The bottom of the fire cover seat is arranged on a sleeve matched with the support tube, and the sleeve is communicated with the outer ring fire cavity; the sleeve is sleeved and supported on the support tube, and the sleeve is communicated with the support tube.
11. The burner according to claim 10, characterized in that A step groove is recessed at the bottom end of the sleeve. When the sleeve is sleeved on the support tube, the top of the support tube is supported on the top surface of the step groove.
12. The burner according to claim 10, characterized in that The furnace head comprises a furnace base and a furnace cover, and the furnace cover is arranged on the top of the furnace base; The furnace base, the center of the furnace cover and the inner ring fire cover enclose the inner ring fire cavity; The gas mixing cavity is formed between the top surface of the furnace base and the bottom surface of the furnace cover, the gas mixing cavity is arranged around the circumference of the inner ring fire cavity, and the support pipe is formed on the top surface of the furnace cover; An outer ring ejector pipe and an inner ring ejector pipe are provided on the outer peripheral wall of the furnace base. The outer ring ejector pipe is communicated with the gas mixing chamber, and the inner ring ejector pipe is communicated with the inner ring fire chamber.
13. The burner according to claim 12, characterized in that The gas mixing chambers are provided with a plurality of gas mixing chambers and are arranged at intervals around the circumference of the inner ring fire chamber. The plurality of gas mixing chambers are connected in sequence along the circumferential direction, and the outer ring ejector pipe is connected to one of the gas mixing chambers; A plurality of the support tubes are protrudingly provided on the top surface of the furnace cover, and the plurality of the support tubes are correspondingly provided above the top of the gas mixing chamber, and the bottom of the fire cover seat is provided on a plurality of the sleeves, and the plurality of the sleeves are correspondingly provided and supported on the plurality of the support tubes.
14. A gas stove, characterized in that: Comprising the burner according to any one of claims 1-13.