Burner main body and burner for stove

Abstract

The invention provides a burner body and a burner for a stove, and belongs to the technical field of gas stoves. According to the combustor, the gas distribution piece with the gas distribution grooves is arranged in the gas mixing cavity, so that gas and air mixed gas entering the gas mixing cavity in the tangential direction can be exhausted in the vertical direction, the lifting injection capacity of the combustor is improved, the gas combustion fire type (annular thin fire) is more standard, and the smoke content is reduced.

Description

Technical Field

[0001] This application relates to the technical field of gas cookers, and more particularly, to a burner body and a burner for a cooker. Background Art

[0002] Gas cookers are important kitchen appliances in the cooking process, and burners are important devices for gas cookers to achieve the cooking purpose. Thermal efficiency and the CO concentration in dry flue gas are two important indicators of household gas cookers. Taking atmospheric embedded cookers as an example, the national standard GB16410-2020 "Household Gas Cookers" stipulates that the thermal efficiency ≥ 55%, and the CO concentration in dry flue gas ≤ 0.05%; GB30720-2014 "Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Household Gas Cookers" stipulates that the thermal efficiency of first-level energy efficiency ≥ 63%; the group standard T / CNHA1023-2020 "Evaluation Requirements for 'Leader' Standards for Household Gas Cookers" stipulates that the advanced level requires the thermal efficiency ≥ 70%, and the CO concentration in dry flue gas ≤ 0.03%.

[0003] Therefore, it is very important to make the gas burn fully, reduce the emission of harmful flue gas, and improve the thermal efficiency of the cooker. Summary of the Invention

[0004] In the first aspect of the second embodiment of this application, a burner body is provided, and the burner body is provided with:

[0005] An annular gas mixing chamber and an annular flame hole channel communicating with the gas mixing chamber, and the gas mixing chamber has a mixing chamber air inlet capable of introducing air tangentially along the tangential direction of the gas mixing chamber;

[0006] An annular air distribution member disposed in the gas mixing chamber;

[0007] Wherein the annular air distribution member is formed with a plurality of air distribution grooves in its circumferential direction, and each of the plurality of air distribution grooves can communicate the gas mixing chamber and the flame hole channel, and the plurality of air distribution grooves are used for dividing the gas-air mixture in the gas mixing chamber into multiple strands and guiding them upward into the flame hole channel.

[0008] In the above technical solution, the burner body includes a burner base, a burner cover and a burner head, wherein:

[0009] The burner cover is annularly arranged on the outer circumferential side of the burner base and forms an annular gas mixing chamber with the burner base;

[0010] The burner head is annularly arranged on the inner circumferential side of the burner base and forms a circumferentially connected annular gap with the end of the burner cover, and the annular gap forms a flame hole channel communicating with the gas mixing chamber;

[0011] The gas mixing chamber communicates with the flame hole passage on one side close to the flame hole passage, and the annular gas distributing member is arranged at the communicating position of the gas mixing chamber and the flame hole passage.

[0012] In the above technical solution, the annular gas distributing member is integrally formed by the burner base.

[0013] In the above technical solution, the burner base is provided with a ring rib on the radially inner side of the annular gas distributing member, and the ring rib protrudes upward into the flame hole passage;

[0014] The outer peripheral wall surface of the ring rib is fitted with the inner peripheral wall surface of the annular gas distributing member;

[0015] The inner peripheral wall surface of the ring rib is fitted with the outer peripheral wall surface of the burner cap.

[0016] In the above technical solution, one end of the burner cap that is upward and away from the inner circle of the burner base forms an inwardly bent edge, and a flame hole passage is formed between the inwardly bent edge of the burner cap and the burner cap;

[0017] There is a gap between the free end of the inwardly bent edge of the burner cap and the upper end surface of the annular gas distributing member, and the gap forms a communication port between the gas mixing chamber and the flame hole passage;

[0018] The inwardly bent edge of the burner cap includes an obliquely part of the burner cap and a vertical part of the burner cap;

[0019] The burner cap includes an obliquely part of the burner cap and a vertical part of the burner cap;

[0020] The obliquely part of the burner cap and the obliquely part of the burner cap are fitted together to form an obliquely part of the flame hole passage;

[0021] The vertical part of the burner cap and the vertical part of the burner cap are fitted together to form a vertical part of the flame hole passage;

[0022] The ring rib protrudes upward into the vertical part of the flame hole passage, and the inner peripheral wall surface of the ring rib is fitted with the outer peripheral wall surface of the vertical part of the burner cap;

[0023] The inlet flow area of the vertical part of the flame hole passage is smaller than the outlet flow area of the obliquely part of the flame hole passage.

[0024] In the above technical solution, the annular gas distributing member includes:

[0025] A ring body, and a plurality of upwardly protruding gas distributing teeth are distributed at intervals along the circumferential direction on the upper surface of the ring body, and the gap between every two adjacent gas distributing teeth forms a gas distributing groove for communicating the gas mixing chamber and the flame hole passage; among them;

[0026] The gas distributing teeth are straight teeth, and the central plane of each straight tooth passes through the center line of the ring body;

[0027] Or

[0028] The gas-distributing teeth are helical teeth, and the central plane of each helical tooth is parallel to the central axis of the annular body.

[0029] In the above technical solution, the height of the radial outer side of the gas-distributing teeth is higher than the height of the radial inner side, and the upper end surface of the gas-distributing teeth is a stepped surface or a sloped surface.

[0030] In the above technical solution, the upper end surface of the gas-distributing teeth includes a first horizontal surface extending horizontally in sequence, a first vertical surface extending downward along the height direction of the gas-distributing teeth from the inner end side of the first horizontal surface, and a second horizontal surface extending horizontally from the lower end side of the first vertical surface to the inner side of the annular body;

[0031] Wherein the first horizontal surface constitutes the top end surface of the gas-distributing teeth.

[0032] In the above technical solution, the ratio of the axial height of the gas-distributing teeth to the height of the first vertical surface is between 2.5 and 3;

[0033] The ratio of the radial width of the gas-distributing teeth to the radial length of the first horizontal surface is between 2 and 2.5, and the ratio of the radial width of the gas-distributing teeth to the radial length of the second horizontal surface is between 2 and 2.5;

[0034] The ratio of the circumference of the annular body to the circumferential width of the gas-distributing teeth is between 130 and 150, and the ratio of the circumference of the annular body to the circumferential width of the gas-distributing groove is between 130 and 150.

[0035] In the above technical solution, the bottom surface of the gas-distributing groove is inclined obliquely upward to the radial inner side;

[0036] and / or

[0037] The cross-section of the gas-distributing groove in the circumferential direction is an equal-width surface;

[0038] and / or

[0039] The flow area of the gas-distributing groove gradually increases along the inflow and outflow direction of the gas flow.

[0040] In the above technical solution, the annular gas-distributing member includes:

[0041] An annular body, on the upper surface of which a plurality of upwardly protruding gas-distributing teeth are circumferentially spaced, and the gap between every two adjacent gas-distributing teeth constitutes a gas-distributing groove communicating the gas mixing cavity with the flame hole passage.

[0042] The second aspect of the second embodiment of the present application provides a stove burner, which is provided with the burner main body provided in the first aspect of the second embodiment of the present application.

[0043] In the second aspect of the second embodiment of the present application, a burner for a stove is further provided, which is provided with a main burner body for high fire and a main burner body for low fire, wherein the main burner for high fire adopts the burner body provided in the first aspect of the second embodiment of the present application.

[0044] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0045] In the embodiment of the present application, by arranging a gas distributing member with a plurality of gas distributing grooves in the gas mixing cavity, the gas-air mixture tangentially entering the gas mixing cavity can be discharged along the vertical direction, thereby improving the lifting and ejecting ability of the burner, making the gas combustion flame pattern (annular thin flame) more regular, and reducing the flue gas content. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1a It is a three-dimensional structure schematic diagram of the annular gas distributing teeth in Embodiment 1 of the present application;

[0047] Figure 1b It is a three-dimensional structure schematic diagram of the annular gas distributing teeth when installed in the gas mixing cavity in Embodiment 1 of the present application;

[0048] Figure 1c It is a total cross-sectional structure schematic diagram of the burner in Embodiment 1 of the present application;

[0049] Figure 1d It is a three-dimensional structure schematic diagram of the burner in Embodiment 1 of the present application;

[0050] Figure 1e For Figure 1d An enlarged structure schematic diagram of part A in the embodiment;

[0051] Figure 1f It is a three-dimensional structure schematic diagram of the flame gas distributing plate in Embodiment 2 of the present application;

[0052] Figure 2a It is a three-dimensional structure schematic diagram of the annular gas distributing teeth in Embodiment 2 of the present application;

[0053] Figure 2b It is a three-dimensional structure schematic diagram of the annular gas distributing teeth when installed in the gas mixing cavity in Embodiment 2 of the present application;

[0054] Figure 2c It is a total cross-sectional structure schematic diagram of the burner in Embodiment 2 of the present application;

[0055] Figure 2d It is a three-dimensional structure schematic diagram of the burner in Embodiment 2 of the present application;

[0056] Figure 2e For Figure 2d An enlarged structure schematic diagram of part A in

[0057] Figure 2f It is a three-dimensional structure schematic diagram of the flame gas distributor in Embodiment 2 of the present application;

[0058] Figure 3a It is a total sectional structure schematic diagram of the burner in Embodiment 3 of the present application;

[0059] Figure 3b It is a three-dimensional structure schematic diagram of the burner in Embodiment 3 of the present application when the burner cover is hidden;

[0060] Figure 3c It is a three-dimensional structure schematic diagram of the C-shaped gas distributor in Embodiment 3 of the present application;

[0061] Figure 3d It is a position corresponding diagram of the C-shaped gas distributor and the intake port of the mixing chamber in the top view in Embodiment 3 of the present application;

[0062] Figure 3e It is a three-dimensional structure schematic diagram of the annular gas distributor in Embodiment 3 of the present application;

[0063] Figure 4a It is a first three-dimensional structure schematic diagram of the flame gas distributor in Embodiment 4 of the present application;

[0064] Figure 4b It is a second three-dimensional structure schematic diagram of the flame gas distributor in Embodiment 4 of the present application;

[0065] Figure 4c It is a three-dimensional structure schematic diagram of the flame gas distributor when installed in the flame hole channel in Embodiment 4 of the present application;

[0066] Figure 4d It is Figure 4c an enlarged structure schematic diagram at position A in

[0067] Figure 4e It is a total sectional structure schematic diagram of the flame gas distributor when installed in the flame hole channel in Embodiment 4 of the present application;

[0068] Figure 4f It is a three-dimensional structure schematic diagram of the burner after installing the flame gas distributor in Embodiment 4 of the present application;

[0069] Figure 5a It is a three-dimensional structure schematic diagram of the burner in Embodiment 5 of the present application;

[0070] Figure 5b It is a total sectional structure schematic diagram of the burner in Embodiment 5 of the present application;

[0071] Figure 5c It is a three-dimensional structure schematic diagram of the flame gas distributor in Embodiment 5 of the present application;

[0072] Figure 6aIt is a three-dimensional structure schematic diagram of the burner in Embodiment 6 of the present application after installing an energy-saving plate;

[0073] Figure 6b It is a total sectional structure schematic diagram of the burner in Embodiment 6 of the present application after installing an energy-saving plate;

[0074] Figure 6c It is Figure 6b an enlarged structure schematic diagram of part A in

[0075] Figure 7a It is a three-dimensional structure schematic diagram of the burner in Embodiment 7 of the present application after installing an energy-saving cover;

[0076] Figure 7b It is a longitudinal sectional structure schematic diagram of the burner in Embodiment 7 of the present application after installing an energy-saving cover;

[0077] Figure 8a It is a three-dimensional structure schematic diagram of the burner in Embodiment 8 of the present application when the energy-saving module is not installed;

[0078] Figure 8b It is Figure 8a an enlarged structure schematic diagram of part A in

[0079] Figure 8c It is a longitudinal sectional structure schematic diagram of the burner in Embodiment 8 of the present application when the energy-saving module is not installed;

[0080] Figure 8d It is a partial three-dimensional structure schematic diagram of the burner in Embodiment 8 of the present application;

[0081] Figure 8e It is a three-dimensional structure schematic diagram of the annular gas distributor in Embodiment 8 of the present application;

[0082] Figure 8f It is a three-dimensional structure schematic diagram of the C-shaped gas distributor in Embodiment 8 of the present application;

[0083] Figure 8g It is a three-dimensional structure schematic diagram of the flame gas dividing plate in Embodiment 8 of the present application;

[0084] Figure 8h It is a three-dimensional structure schematic diagram of the burner in Embodiment 8 of the present application when the energy-saving plate is installed;

[0085] Figure 8i It is a longitudinal sectional structure schematic diagram of the burner in Embodiment 8 of the present application when the energy-saving plate is installed;

[0086] Figure 8j It is Figure 8i an enlarged structure schematic diagram of part B in

[0087] Figure 8kIt is a three-dimensional structure schematic diagram of the burner with an energy-saving cover in Embodiment 8 of the present application;

[0088] Figure 8l It is a longitudinal sectional structure schematic diagram of the burner with an energy-saving cover in Embodiment 8 of the present application.

[0089] Wherein:

[0090] In Embodiment 1: 20 - burner main body; 20a - burner base; 20a1 - ring rib; 20b - burner cover; 20b1 - inwardly bent edge; 20b11 - inclined part of the burner cover; 20b12 - vertical part of the burner cover; 20c - burner head; 20c11 - inclined part of the burner head; 20c12 - vertical part of the burner head; 21 - gas mixing chamber; 211 - intake port of the mixing chamber; 22 - flame hole passage; 30 - annular gas distributor; 31 - gas distribution groove; 32 - gas distribution teeth; 321 - first transverse surface; 322 - second transverse surface; 323 - first vertical surface; 33 - ring body; 40 - communication port; 50 - flame gas distributor; 51 - pilot flame passage; 52 - convex structure;

[0091] In Embodiment 2: 20 - burner main body; 20a - burner base; 20a1 - ring rib; 20b - burner cover; 20b1 - inwardly bent edge; 20b11 - inclined part of the burner cover; 20b12 - vertical part of the burner cover; 20c - burner head; 20c11 - inclined part of the burner head; 20c12 - vertical part of the burner head; 21 - gas mixing chamber; 211 - intake port of the mixing chamber; 22 - flame hole passage; 30 - annular gas distributor; 31 - gas distribution groove; 32 - gas distribution teeth; 321 - first transverse surface; 322 - second transverse surface; 323 - first vertical surface; 33 - ring body; 40 - communication port; 50 - flame gas distributor; 51 - pilot flame passage; 52 - convex structure;

[0092] In Embodiment 3: 20 - burner main body; 20a - burner base; 20b - burner cover; 20c - burner head; 21 - gas mixing chamber; 211 - intake port; 22 - flame hole passage; 30 - annular gas distributor; 31 - gas distribution groove; 32 - gas distribution teeth; 70 - gas distributor; 701 - first edge; 702 - second edge;

[0093] In Embodiment 4: 10 - flame gas distributor; 10a - first mating surface; 10b - second mating surface; 101 - pilot flame passage; 102 - convex structure; 20 - burner main body; 20a - burner base; 20b - burner cover; 20c - burner head; 21 - gas mixing chamber; 22 - flame hole passage; 221 - vertical passage section; 222 - inclined passage section; 30 - pot foot piece;

[0094] In Embodiment 5: 11 - large fire burner cap; 12 - large fire burner cover; 13 - large fire burner base; 14 - large fire gas mixing chamber; 15 - large fire burner hole channel; 21 - small fire burner cap; 211 - first annular part of the burner cap; 212 - second annular part of the burner cap; 22 - small fire burner cover; 221 - first annular part of the burner cover; 222 - second annular part of the burner cover; 2221 - second annular part A; 2222 - second annular part B; 23 - small fire burner base; 24 - small fire gas mixing chamber; 25 - small fire burner hole channel; 251 - first small fire burner hole channel; 252 - second small fire burner hole channel; 30 - annular gas distributor; 40 - C-shaped gas distributor; 50 - flame gas distributor; 501 - pilot channel.

[0095] In Embodiment 6: 11 - large fire burner cap; 12 - large fire burner cover; 13 - large fire burner base; 131 - pot leg piece slot; 14 - large fire gas mixing chamber; 15 - large fire burner hole channel; 60 - pot leg piece; 70 - energy-saving plate; 71 - radiation plate; 711 - first annular part of the radiation plate; 712 - second annular part of the radiation plate; 713 - third annular part of the radiation plate; 72 - tray; 721 - second annular part of the tray; 722 - second annular part of the tray; 723 - third annular part of the tray; 73 - reflector; 731 - first annular part of the reflector; 732 - second annular part of the reflector; 733 - third annular part of the reflector; 74 - elastic piece; 76 - outer secondary air supply channel; 77 - inclined outer surface of the burner body for heat exchange; 78 - vertical outer ring surface of the burner body; 79 - bayonet.

[0096] In Embodiment 7: 11 - burner cap; 12 - burner cover; 13 - burner base; 14 - gas mixing chamber; 15 - burner hole channel; 60 - pot leg piece; 77 - inclined outer ring surface of the burner body; 78 - vertical outer ring surface of the burner body; 79 - locking part; 80 - energy-saving device; 801 - energy-saving cover; 802 - energy-saving cover tray.

[0097] In Embodiment 8: 10 - large-fire ejector pipe; 11 - large-fire burner cap; 12 - large-fire burner cover; 121 - flame gas-distributing plate positioning groove; 13 - large-fire burner base; 131 - pot leg piece slot; 14 - large-fire gas mixing chamber; 15 - large-fire flame hole channel; 151 - large-fire flame hole channel one; 152 - large-fire flame hole channel two; 20 - small-fire ejector pipe; 21 - small-fire burner cap; 22 - small-fire burner cover; 23 - small-fire burner base; 24 - small-fire gas mixing chamber; 25 - small-fire flame hole channel; 251 - small-fire flame hole channel one; 252 - small-fire flame hole channel two; 26 - middle secondary air supply channel; 27 - inner secondary air supply channel; 30 - annular gas-distributing part; 31 - gas-distributing groove; 40 - C-shaped gas-distributing part; 41 - support leg; 50 - flame gas-distributing plate; 60 - pot leg piece; 70 - energy-saving plate; 71 - radiation plate; 72 - tray; 73 - reflecting plate; 74 - elastic piece; 75 - notch; 76 - screw; 80 - energy-saving cover; 801 - energy-saving cover cap; 802 - energy-saving cover tray. Detailed Description of the Invention

[0098] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0099] Throughout the specification and the claims, the following terms have at least the meanings explicitly associated herein, unless the context otherwise requires. The meanings determined below do not necessarily limit the terms, but merely provide illustrative examples of the terms.

[0100] In the description of the present invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may. Similarly, as used herein, the phrase "in some embodiments", when used multiple times, does not necessarily refer to the same embodiment, although it may. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or", unless the context otherwise clearly requires. The term "based on" is not exclusive and allows for additional factors not described, unless the context otherwise clearly requires. The word "exemplary" herein means "serving as an example, instance, or illustration". Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of the present invention is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed invention. The various embodiments provided by the present invention should not be construed as limiting the scope of protection of the present invention.

[0101] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0102] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0103] In the present invention, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0104] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0105] Existing stove burners often have the following technical problems:

[0106] 1. In the prior art, the distribution of the gas-air mixture in the gas mixing chamber is not uniform enough, and the original tangential intake direction cannot well adapt to the combustion requirements. This results in an irregular flame pattern during gas combustion, a low combustion efficiency, and a high content of flue gas generated during combustion, failing to meet the increasingly strict environmental protection and energy-saving requirements.

[0107] 2. In the existing burner, the gas in the gas mixing cavity is unevenly distributed, resulting in the gas not being discharged evenly and fully during the combustion process. This not only affects the combustion efficiency of the gas, leading to a low thermal efficiency, but also increases the content of flue gas generated by combustion, causing adverse effects on the environment. At the same time, it cannot well meet the user's demand for an efficient and energy-saving gas stove.

[0108] 3. In the prior art, there is no corresponding gas distribution device in the flame hole channel of the burner, resulting in the flame being prone to interference with the pot leg pieces during combustion. This not only increases the temperature of the pot leg pieces, affecting the durability of the pot support, but also increases heat loss and reduces the thermal efficiency of the burner. At the same time, due to the uneven distribution of the flame, it also increases the content of flue gas generated by combustion and cannot well meet the environmental protection requirements.

[0109] 4. During the combustion process of the existing burner, heat conduction and diffusion downward are relatively serious, and there is a large amount of excess secondary air. This results in a low thermal efficiency of the burner, unable to fully utilize the heat generated by the gas, increasing energy consumption. At the same time, it also leads to a relatively high content of flue gas generated by combustion, which does not conform to the development trend of energy conservation and environmental protection. In addition, the versatility of the burner is also restricted to a certain extent, which is not conducive to the flexible application of burners with different structures.

[0110] In view of the above technical problems, the present application provides multiple different embodiments that can solve at least one of the above technical problems.

[0111] Embodiment 1

[0112] As Figure 1a - Figure 1f shown, in the first aspect of this embodiment, an annular gas distribution member is provided, which is used to be circumferentially arranged at the connection position between the annular gas mixing cavity 21 and the annular flame hole channel 22 of the burner body. The annular gas distribution member 30 includes:

[0113] A ring body 33, on the upper surface of the ring body 33, a plurality of upwardly protruding gas distribution teeth 32 are circumferentially spaced apart, and the gap between every two adjacent gas distribution teeth 32 forms a gas distribution groove 31 that connects the gas mixing cavity and the flame hole channel.

[0114] In the embodiment of the present application, by providing a gas distribution member with a plurality of gas distribution grooves 31, the gas-air mixture entering the gas mixing cavity tangentially can be discharged along the vertical direction, thereby improving the lifting and ejecting ability of the burner, making the annular thin flame of the gas combustion more regular, and reducing the flue gas content.

[0115] It should be noted that the above annular flame hole channel 22 can be composed of a single component alone or formed by the cooperation of multiple components. The specific composition method of the annular flame hole channel 22 in this embodiment is not limited.

[0116] Further, in some possible embodiments,

[0117] The gas-distributing teeth 32 are straight teeth, and the central plane of each straight tooth passes through the center line of the annular body 33;

[0118] Or

[0119] The gas-distributing teeth 32 are helical teeth, and the central plane of each helical tooth is parallel to the center line of the annular body.

[0120] Further, in some possible embodiments, the radially outer height of the gas-distributing teeth 32 is higher than the radially inner height thereof, and the upper end surface of the gas-distributing teeth 32 is a stepped surface or a slope surface.

[0121] In this embodiment, by setting the radially outer height of the gas-distributing teeth 32 to be higher than the radially inner height thereof and setting the upper end surface of the gas-distributing teeth 32 to be a stepped surface or a slope surface, the space on the gas outlet side of the gas-distributing groove 31 can be made larger, thereby further improving the ejecting ability of the burner and then further reducing the flue gas content of the burner.

[0122] Further, in some possible embodiments, the upper end surface of the gas-distributing teeth 32 includes a first transverse surface 321 extending in the horizontal direction, a first vertical surface 323 extending downward along the height direction of the gas-distributing teeth 32 from the inner end side of the first transverse surface 321, and a second transverse surface 322 extending from the lower end side of the first vertical surface 323 in the horizontal direction to the inner side of the annular body 33, wherein the first transverse surface 321 constitutes the tooth top surface of the gas-distributing teeth 32.

[0123] That is, in the embodiment of the present application, a notch is formed on the side of the gas-distributing teeth 32 that cooperates with the burner base, and the notch can cooperate with the burner base to form a concave cavity, so that the space on the gas outlet side of the gas-distributing groove 31 can be made larger, thereby further improving the ejecting ability of the burner and then further reducing the flue gas content of the burner.

[0124] Further, in some possible embodiments, the ratio of the axial height of the gas-distributing teeth 32 to the height of the first vertical surface 323 is between 2.5 and 3;

[0125] The ratio of the radial width of the gas-distributing teeth 32 to the radial length of the first transverse surface 321 is between 2 and 2.5, and the ratio of the radial width of the gas-distributing teeth 32 to the radial length of the second transverse surface 322 is between 2 and 2.5;

[0126] The ratio of the circumference of the annular body 33 to the circumferential width of the gas-distributing teeth 23 is between 130 and 150, and the ratio of the circumference of the annular body 33 to the circumferential width of the gas-distributing groove 31 is between 130 and 150.

[0127] Further, in some possible embodiments, the bottom surface of the gas distribution groove 31 is inclined obliquely upward toward the radially inner side;

[0128] and / or

[0129] the cross-section of the gas distribution groove 31 in the circumferential direction is an equal-width surface;

[0130] and / or

[0131] the flow area of the gas distribution groove 31 gradually increases along the inflow and outflow direction of the gas flow.

[0132] In the second aspect of this embodiment, a burner base is provided. The burner base 10 is integrally formed with the annular gas distribution member 30 provided in the first aspect of this embodiment.

[0133] In the third aspect of this embodiment, a burner main body is provided, which is provided with the burner base 10 provided in the second aspect of this embodiment.

[0134] Further, in some possible embodiments, the burner main body 20 is provided with an annular gas mixing chamber 21 and an annular flame hole passage 22 communicated with the gas mixing chamber 21;

[0135] An annular gas distribution member 30 is provided at the communication position between the gas mixing chamber 21 and the flame hole passage 22;

[0136] The annular gas distribution member 30 is the annular gas distribution member provided in the first aspect of this embodiment.

[0137] Further, in some possible embodiments, the annular gas distribution member 30 is integrally formed with the burner main body.

[0138] Further, in some possible embodiments, the burner main body 20 includes a burner base 20a, a burner cover 20b, and a fire cover 20c, wherein:

[0139] The burner cover 20b is annularly arranged on the outer circumferential side of the burner base 20a and forms an annular gas mixing chamber 21 with the burner base 20a;

[0140] The fire cover 20c is annularly arranged on the inner circumferential side of the burner base 20a and forms a circumferentially connected annular gap with the end of the burner cover 20b, and the annular gap forms a flame hole passage 22 communicated with the gas mixing chamber 21;

[0141] The gas mixing chamber 21 is communicated with the flame hole passage 22 on the side close to the flame hole passage 22, and an annular gas distribution member 30 is provided at the communication position;

[0142] The annular gas distribution member 30 is the annular gas distribution member provided in the first aspect of this embodiment.

[0143] Further, in some possible embodiments, the annular gas distributor 30 is integrally formed with the burner base 20a.

[0144] Further, in some possible embodiments, an inwardly bent edge 20b1 is formed at one end of the burner cover 20b that extends upward and away from the inner circle of the burner base. A flame hole passage 22 is formed between the inwardly bent edge 20b1 of the burner cover 20b and the flame retainer 20c.

[0145] A gap is provided between the free end of the inwardly bent edge 20b1 of the burner cover 20b and the upper end surface of the annular gas distributor 30. The gap forms a communication port 40 between the gas mixing chamber 21 and the flame hole passage 22.

[0146] That is, when the gas distributor with a plurality of gas distribution teeth 32 is disposed in the gas mixing chamber, the upper tooth surface of the gas distribution teeth 32 can correspond to the bottom end of the flame hole passage, and the two are arranged with a distance therebetween, so as to reduce the resistance suffered by the annular gas distributor during gas distribution.

[0147] Further, in some possible embodiments, a ring rib 20a1 is provided on the radial inner side of the annular gas distributor 30 on the burner base 20a, and the ring rib 20a1 protrudes upward into the flame hole passage 22.

[0148] The outer peripheral wall surface of the ring rib 20a1 cooperates with the inner peripheral wall surface of the annular gas distributor 30.

[0149] The inner peripheral wall surface of the ring rib 20a1 cooperates with the outer peripheral wall surface of the flame retainer 20c.

[0150] Further, in some possible embodiments, the inwardly bent edge 20b1 of the burner cover 20b includes a burner cover inclined portion 20b11 and a burner cover vertical portion 20b12.

[0151] The flame retainer 20c includes a flame retainer inclined portion 20c11 and a flame retainer vertical portion 20c12.

[0152] The burner cover inclined portion 20b11 and the flame retainer inclined portion 20c11 cooperate to form an inclined portion of the flame hole passage 22.

[0153] The burner cover vertical portion 20b12 and the flame retainer vertical portion 20c12 cooperate to form a vertical portion of the flame hole passage 22.

[0154] The ring rib 20a1 protrudes upward into the vertical portion of the flame hole passage 22, and the inner peripheral wall surface of the ring rib 20a1 cooperates with the outer peripheral wall surface of the vertical portion of the flame retainer 20c.

[0155] The inlet flow area of the vertical portion of the flame hole passage 22 is smaller than the outlet flow area of the inclined portion of the flame hole passage 22.

[0156] Further, in some possible embodiments, the burner body further includes a plurality of pot leg pieces 10 circumferentially spaced along the burner base 20a;

[0157] The burner body further includes a plurality of flame gas distribution pieces 50 circumferentially spaced within the flame hole passage 22 along the circumferential direction of the flame hole passage 22. The plurality of flame gas distribution pieces 50 are located inside the plurality of pot leg pieces 10 and are in one-to-one correspondence with the plurality of pot leg pieces 10 in position;

[0158] Each flame gas distribution piece 50 is provided with a pilot flame passage 51, and the pilot flame passage 51 extends from the air inlet side of the flame hole passage 22 to the air outlet side of the flame hole passage 22;

[0159] The flame gas distribution piece 50 has opposite first mating surface and second mating surface, wherein the first mating surface is mated with the burner cap 20c, and the second mating surface is mated with the burner cover 20b;

[0160] The flame gas distribution piece 50 is configured to have an obstructive effect on the circumferential flow and radial outflow of the gas mixture at the position of the flame hole passage 22 where it is located, but allows the gas mixture to flow out of the pilot flame passage 501 through the pilot flame passage 501 for combustion.

[0161] Further, in some possible embodiments, a channel structure is formed on the side of the first mating surface towards the second mating surface, and the channel structure constitutes the pilot flame passage 501. A convex structure 52 is formed at the position of the second mating surface corresponding to the channel structure, and the convex structure 52 on the second mating surface side is mated with the burner cap 20c.

[0162] Further, in some possible embodiments, a pot leg piece slot 20a1 is provided on the burner base 20a, and the pot leg piece 10 is inserted into the pot leg piece slot 20a1 of the burner base 20a.

[0163] The fourth aspect of the embodiment of the present application provides a stove burner, which includes the burner body provided in the third aspect of the present embodiment.

[0164] The fourth aspect of the embodiment of the present application further provides a stove burner, which is provided with a large-fire burner body and a small-fire burner body, wherein the large-fire burner body adopts the burner body provided in the third aspect of the present embodiment.

[0165] Generally speaking, in this embodiment, by arranging an annular gas distributor at the position where the gas mixing chamber of the burner body communicates with the flame hole passage, a plurality of gas distribution teeth distributed on the ring body form gas distribution grooves, effectively changing the flow direction of the gas-air mixture from tangential intake to vertical exhaust. This improvement significantly enhances the entrainment capacity of the burner, makes the flame shape formed by gas combustion more regular, presents an ideal annular thin flame state, thereby reducing the smoke content generated during the combustion process, and improving the combustion efficiency and environmental protection performance.

[0166] Furthermore, the gas distribution teeth are designed with a height higher on the radially outer side than on the radially inner side, and the upper end surface adopts a stepped surface or a ramp surface structure form. This unique structural design further increases the space on the gas outlet side of the gas distribution groove, thereby further enhancing the entrainment capacity of the burner, enabling the gas mixture to be discharged more smoothly and burn fully, further reducing the smoke content, and optimizing the combustion effect.

[0167] Furthermore, the annular gas distributor is integrally formed with the burner base, which not only improves the overall structural stability of the burner, but also reduces the assembly error and connection gap between components, ensuring the uniformity and stability of the gas mixture during the flow process, contributing to further improving the combustion efficiency and reducing the smoke content. At the same time, it simplifies the manufacturing process of the burner and reduces the production cost.

[0168] Furthermore, the flame hole passage is formed by the inwardly bent edge of the burner cover cooperating with the fire cover, and the inlet flow area of the vertical part is smaller than the outlet flow area of the inclined part. This structural design helps to control the flow velocity and pressure distribution of the gas mixture in the flame hole passage, enabling the gas mixture to be discharged and burned more evenly from the flame hole passage, further improving the combustion stability and uniformity, reducing local high temperature and incomplete combustion phenomena, thereby reducing the generation amount of pollutants in the smoke, and improving the environmental protection performance of the burner.

[0169] Furthermore, flame dividing pieces are arranged at intervals along the circumferential direction in the flame hole passage. The flame dividing pieces divide the flame in the flame hole passage into multiple petals, avoiding direct interference between the flame and the pot leg pieces. This improvement not only reduces the temperature of the pot leg pieces, reduces heat loss, improves the thermal efficiency, but also enhances the durability of the burner and extends the service life of the pot support. At the same time, the ignition channels on the flame dividing pieces allow the gas mixture to flow out for combustion, ensuring the continuity and stability of combustion, and further optimizing the combustion effect.

[0170] In summary, through the above series of structural optimization and improvement, the entrainment ability of the burner, the distribution uniformity of the gas mixture, and the stability and uniformity of combustion have been significantly improved. This enables the gas to burn more fully, releasing more heat, thereby achieving a substantial increase in the thermal efficiency of the burner, meeting the user's demand for an energy-efficient gas stove, reducing energy consumption, and having good economic and social benefits. The improved burner has achieved remarkable results in reducing the flue gas content, effectively reducing the emissions of harmful gases and pollutants generated during the combustion process, such as carbon monoxide {CO}, etc., making the environmental protection performance of the burner reach a higher standard, meeting the requirements of relevant national environmental protection regulations, and being of great significance for improving the environmental quality. The integrated design of the burner base and the gas distribution component, as well as the close cooperation between the components, improve the overall structural stability of the burner, reduce the probability of component loosening, falling off and other failures, enhance the reliability and service life of the burner, and reduce the user's usage cost and maintenance workload.

[0171] Example 2

[0172] As Figure 2a - Figure 2f shown, for the burner body in the first aspect of this embodiment, the burner body 20 is provided with:

[0173] An annular gas mixing chamber 21 and an annular flame hole passage 22 communicated with the gas mixing chamber 21. The gas mixing chamber 21 has a mixing chamber air inlet 211 capable of introducing gas along the tangential direction of the gas mixing chamber 21;

[0174] An annular gas distribution component 30 is arranged in the gas mixing chamber 21;

[0175] Wherein, the annular gas distribution component 30 is formed with a plurality of gas distribution grooves 31 in its circumferential direction. Each of the plurality of gas distribution grooves 31 can communicate the gas mixing chamber 21 and the flame hole passage 22. The plurality of gas distribution grooves 31 are used to divide the gas-air mixture in the gas mixing chamber 21 into multiple strands and then guide them upward into the flame hole passage 22.

[0176] In the embodiment of the present application, by arranging an annular gas distribution component with a plurality of gas distribution grooves in the gas mixing chamber, the gas-air mixture tangentially entering the gas mixing chamber can be discharged along the vertical direction, thereby improving the entrainment ability of the burner, making the annular thin flame of the gas combustion more regular, and reducing the flue gas content.

[0177] Further, in some possible embodiments, the gas mixing chamber 21 includes an outer ring of the chamber and an inner ring of the chamber. The gas mixing chamber outlet 211 communicates with the gas mixing chamber 21 at a position close to the outer ring of the gas mixing chamber 21, and the flame hole channel 22 communicates with the gas mixing chamber 21 at a position close to the inner ring of the gas mixing chamber 21. The annular gas distribution member 30 is disposed at the position of the inner ring of the gas mixing chamber 21. In this way, the gas-air mixture ejected from the ejector tube can be gathered at the position of the outer ring of the gas mixing chamber 21, and after being distributed by the annular gas distribution member 30 disposed at the inner ring outlet, it is discharged along the axial direction from the upper flame hole channel 22, so as to change the flow direction of the gas-air mixture in the gas mixing chamber 21, thereby improving the ejector capacity of the burner.

[0178] Further, in some possible embodiments, the burner body 20 includes a burner base 20a, a burner cover 20b, and a burner cap 20c, wherein:

[0179] The burner cover 20b is annularly arranged on the outer circumferential side of the burner base 20a and forms an annular gas mixing chamber 21 with the burner base 20a;

[0180] The burner cap 20c is annularly arranged on the inner circumferential side of the burner base 20a and forms a circumferentially connected annular gap with the end of the burner cover 20b. The annular gap forms a flame hole channel 22 communicating with the gas mixing chamber 21;

[0181] The gas mixing chamber 21 communicates with the flame hole channel 22 on one side close to the flame hole channel 22, and the annular gas distribution member 30 is disposed at the communication position between the gas mixing chamber 21 and the flame hole channel 22.

[0182] In the embodiment of the present application, by disposing the annular gas distribution member 30 at the communication position between the gas mixing chamber 21 and the flame hole channel 22, the multiple airflows separated by the annular gas distribution member 30 can be directly discharged upward into the flame hole channel 22, reducing the flow resistance of the gas-air mixture.

[0183] Further, in some possible embodiments, the annular gas distribution member 30 is integrally formed with the burner base 20a.

[0184] Further, in some possible embodiments, the burner base 20a is provided with a ring rib 20a1 on the radially inner side of the annular gas distribution member 30, and the ring rib 20a1 protrudes upward into the flame hole channel 22;

[0185] The outer peripheral wall surface of the ring rib 20a1 is fitted with the inner peripheral wall surface of the annular gas distribution member 30;

[0186] The inner peripheral wall surface of the ring rib 20a1 is fitted with the outer peripheral wall surface of the burner cap 20c.

[0187] Further, in some possible embodiments, an inwardly bent edge 20b1 is formed at one end of the burner cover 20b that faces away from the inner circle of the burner base upward. A flame hole passage 22 is formed between the inwardly bent edge 20b1 of the burner cover 20b and the burner cap 20c;

[0188] A gap is provided between the free end of the inwardly bent edge 20b1 of the burner cover 20b and the upper end surface of the annular gas distributing member 30. The gap forms a communication port 40 between the gas mixing chamber 21 and the flame hole passage 22;

[0189] The inwardly bent edge 20b1 of the burner cover 20b includes an obliquely extending portion 20b11 of the burner cover and a vertically extending portion 20b12 of the burner cover;

[0190] The burner cap 20c includes an obliquely extending portion 20c11 of the burner cap and a vertically extending portion 20c12 of the burner cap;

[0191] The obliquely extending portion 20b11 of the burner cover and the obliquely extending portion 20c11 of the burner cap cooperate to form an obliquely extending portion of the flame hole passage 22;

[0192] The vertically extending portion 20b12 of the burner cover and the vertically extending portion 20c12 of the burner cap cooperate to form a vertically extending portion of the flame hole passage 22;

[0193] The annular rib 20a1 protrudes upward into the vertically extending portion of the flame hole passage 22. The inner peripheral wall surface of the annular rib 20a1 cooperates with the outer peripheral wall surface of the vertically extending portion of the burner cap 20c;

[0194] The inlet flow area of the vertically extending portion of the flame hole passage 22 is smaller than the outlet flow area of the obliquely extending portion of the flame hole passage 22.

[0195] Further, in some possible embodiments, the annular gas distributing member 30 includes:

[0196] A ring body 33, on the upper surface of which a plurality of upwardly protruding gas distributing teeth 32 are circumferentially and spacedly distributed. The gap between every two adjacent gas distributing teeth 32 forms a gas distributing groove 31 that communicates the gas mixing chamber 21 with the flame hole passage 22; wherein;

[0197] The gas distributing teeth 32 are straight teeth, and the central plane of each straight tooth passes through the center line of the ring body 33;

[0198] Or

[0199] The gas distributing teeth 32 are helical teeth, and the central plane of each helical tooth is parallel to the center line of the ring body 33.

[0200] Further, in some possible embodiments, the radially outer height of the gas distributing teeth 32 is higher than its radially inner height, and the upper end surface of the gas distributing teeth 32 is a stepped surface or a sloped surface.

[0201] Further, in some possible embodiments, the upper end surface of the gas-dividing tooth 32 includes a first transverse surface 321 extending horizontally in sequence, a first vertical surface 323 extending downward along the height direction of the gas-dividing tooth 32 from the inner end side of the first transverse surface 321, and a second transverse surface 322 extending horizontally from the lower end side of the first vertical surface 323 toward the inner side of the ring body 33;

[0202] Among them, the first transverse surface 321 constitutes the top end surface of the gas-dividing tooth 32.

[0203] Further, in some possible embodiments, the ratio of the axial height of the gas-dividing tooth 32 to the height of the first vertical surface 323 is between 2.5 and 3;

[0204] The ratio of the radial width of the gas-dividing tooth 32 to the radial length of the first transverse surface 321 is between 2 and 2.5, and the ratio of the radial width of the gas-dividing tooth 32 to the radial length of the second transverse surface 322 is between 2 and 2.5;

[0205] The ratio of the circumference of the ring body 33 to the circumferential width of the gas-dividing tooth 23 is between 130 and 150, and the ratio of the circumference of the ring body 33 to the circumferential width of the gas-dividing groove 31 is between 130 and 150.

[0206] Further, in some possible embodiments, the bottom surface of the gas-dividing groove 31 is inclined obliquely upward toward the radial inner side;

[0207] and / or

[0208] The cross-section of the gas-dividing groove 31 in the circumferential direction is an equal-width surface;

[0209] and / or

[0210] The flow area of the gas-dividing groove 31 gradually increases along the inflow and outflow direction of the gas flow.

[0211] Further, in some possible embodiments, the annular gas-dividing member 30 includes:

[0212] A ring body 33, on the upper surface of the ring body 33, a plurality of upwardly protruding gas-dividing teeth 32 are distributed at intervals in the circumferential direction, and the gap between every two adjacent gas-dividing teeth 32 forms a gas-dividing groove 31 communicating the gas mixing chamber and the flame hole passage.

[0213] The second aspect of this embodiment provides a stove burner, provided with the burner body provided in the first aspect of this embodiment.

[0214] The second aspect of this embodiment also provides a stove burner, provided with a large-fire burner body and a small-fire burner body, and the large-fire burner adopts the burner body provided in the first aspect of this embodiment.

[0215] Generally speaking, in this embodiment, by providing an annular air distribution member with a plurality of air distribution grooves in the gas mixing cavity, the gas-air mixture that tangentially enters the gas mixing cavity can be discharged along the vertical direction, improving the ejector capacity of the burner, making the gas combustion flame pattern more regular, and reducing the smoke content.

[0216] Furthermore, the gas mixing cavity includes an outer cavity ring and an inner cavity ring. The mixing cavity air outlet is connected to the gas mixing cavity near the outer cavity ring, and the flame hole channel is connected to the gas mixing cavity near the inner cavity ring; the annular air distribution member is arranged at the position of the inner cavity ring of the gas mixing cavity. This enables the gas-air mixture ejected from the ejector tube to gather at the position of the outer cavity ring of the gas mixing cavity, and after being distributed by the annular air distribution member arranged at the inner cavity ring, it is discharged from the upper flame hole channel along the axial direction, changing the flow direction of the gas-air mixture in the gas mixing cavity and further improving the ejector capacity of the burner.

[0217] Furthermore, by setting the burner body to include a burner base, a burner cover, and a flame cover, the burner cover and the burner base form the gas mixing cavity, and the flame cover and the end of the burner cover form the flame hole channel; the annular air distribution member is arranged at the connection position of the gas mixing cavity and the flame hole channel. This enables multiple airflows separated by the annular air distribution member to be directly discharged upward into the flame hole channel, reducing the flow resistance of the gas-air mixture and improving the combustion efficiency.

[0218] Furthermore, the flame hole channel is formed between the inwardly bent edge of the burner cover and the flame cover; the inwardly bent edge of the burner cover includes an inclined part and a vertical part, and the flame cover includes an inclined part and a vertical part, and the two cooperate to form the inclined part and the vertical part of the flame hole channel respectively; the annular rib protrudes upward into the vertical part of the flame hole channel, and the inner peripheral wall surface of the annular rib cooperates with the outer peripheral wall surface of the vertical part of the flame cover; the inlet flow area of the vertical part of the flame hole channel is smaller than the outlet flow area of the inclined part. This optimizes the structure of the flame hole channel, makes the flow of the gas mixture in the flame hole channel smoother, further improves the combustion stability and uniformity, reduces local high temperature and incomplete combustion phenomena, reduces the generation amount of pollutants in the smoke, and improves the environmental protection performance of the burner.

[0219] Furthermore, the air distribution teeth are straight teeth or inclined teeth, the height of the radial outer side of the air distribution teeth is higher than the height of their radial inner side, and the upper end surface of the air distribution teeth is a stepped surface or a slope surface; the upper end surface of the air distribution teeth includes a first horizontal surface, a first vertical surface, and a second horizontal surface arranged in sequence. This further increases the space on the air outlet side of the air distribution groove, reduces the resistance suffered by the annular air distribution member during air distribution, enables the gas mixture to be discharged more smoothly and burn fully, further improves the ejector capacity of the burner, and reduces the smoke content.

[0220] Furthermore, the ratios of the axial height of the gas-distributing teeth to the height of the first vertical surface, the radial width of the gas-distributing teeth to the radial length of the first horizontal surface, the radial width of the gas-distributing teeth to the radial length of the second horizontal surface, the circumference of the ring body to the circumferential width of the gas-distributing teeth, and the circumference of the ring body to the circumferential width of the gas-distributing groove are optimized; the bottom surface of the gas-distributing groove slopes obliquely upward toward the radial inner side, the cross-section of the gas-distributing groove in the circumferential direction is an equal-width surface, and the flow area of the gas-distributing groove gradually increases along the inflow and outflow directions of the gas flow. By optimizing the size and shape, the gas-distributing effect and the performance of the burner can be further improved, making the distribution of the gas mixture more uniform, the combustion more complete, further reducing the flue gas content, and improving the combustion efficiency and thermal efficiency.

[0221] In summary, through the above series of structural optimization improvements, the combustion efficiency, thermal efficiency, and environmental protection performance of the stove burner have been significantly improved, which can meet the user's requirements for high-efficiency and energy-saving gas stoves, while reducing energy consumption and pollutant emissions, and having good economic and social benefits.

[0222] Embodiment 3

[0223] As Figure 3a - Figure 3e shown, in the first aspect of this embodiment, a gas-distributing member is provided for being disposed in the annular gas mixing chamber 21 of the burner main body 20. The gas-distributing member 70 is a sheet structure. The sheet structure has opposite first and second edges in the circumferential direction, and the region between the first and second edges forms a notch region.

[0224] The gas-distributing member 70 is configured such that when the gas-distributing member 70 is disposed in the gas mixing chamber 21 along the circumferential direction of the gas mixing chamber 21, the gas-distributing member divides the gas mixing chamber 211 into an upper gas mixing chamber 21a and a lower gas mixing chamber 21b, and the position of the notch region of the gas-distributing member 70 in the gas mixing chamber 21 corresponds to the position of the air inlet 211 of the gas mixing chamber 21.

[0225] In the embodiment of the present application, by providing the gas-distributing member 70 in the gas mixing chamber, the gas-air mixture can be more evenly distributed in the gas mixing chamber, so that the flue gas content generated during combustion can be reduced when the gas is discharged for combustion.

[0226] Furthermore, in some possible implementation manners, the gas-distributing member is a C-shaped gas-distributing member.

[0227] It should be noted that the gas-distributing member mentioned in the embodiment of the present application is not required to be a C shape in the complete mathematical sense. As long as it generally presents a C shape, at the same time, for the gas-distributing member 70 mentioned in the embodiment of the present application, the arc length of the notch region is smaller than the arc length of the solid part, so as to achieve a better stratified gas-distributing effect.

[0228] Further, in the second aspect of the embodiments of the present application, a burner body is further provided.

[0229] The burner body 20 is provided with an annular gas mixing chamber 21 and an annular flame hole passage 22 communicated with the gas mixing chamber 21. An air inlet 211 is provided at the lower part of the gas mixing chamber 21 for supplying gas mixture into the gas mixing chamber 21, and an air outlet is provided at the side part for supplying the gas mixture in the gas mixing chamber into the flame hole passage 22.

[0230] Wherein a gas distributing member is arranged in the gas mixing chamber 21 along the circumferential direction of the gas mixing chamber 21. The gas distributing member is used for separating the gas mixing chamber 211 into an upper layer gas mixing chamber 21a and a lower layer gas mixing chamber 21b. The upper layer gas mixing chamber 21a and the lower layer gas mixing chamber 21b are communicated with the air outlet at the radially inner side, and the gas distributing member 70 is configured such that the position of its notch area in the gas mixing chamber 21 corresponds to the position of the air inlet 211 of the gas mixing chamber 21.

[0231] Wherein the gas distributing member is the gas distributing member provided in the first aspect of this embodiment.

[0232] In the embodiments of the present application, by arranging the gas distributing member 70 in the gas mixing chamber of the burner body, the gas-air mixture can be more evenly distributed in the gas mixing chamber, so that the smoke content generated during combustion can be reduced when the gas is discharged and burned.

[0233] Further, in some possible implementation manners, the incoming air flow supplied from the air inlet 211 of the gas mixing chamber is designed to flow from the second edge 702 side to the first edge 701 side. The position of the notch of the gas distributing member in the gas mixing chamber 21 corresponding to the position of the air inlet 211 of the gas mixing chamber 21 is one of the following situations:

[0234] The first situation is that, viewed from the top view, a part of the air inlet 211 of the gas mixing chamber 21 is located in the circumferential area defined by the first edge 701 and the second edge 702 and does not coincide with the first edge 701 and the second edge 702.

[0235] The second situation is that, viewed from the top view, a part of the air inlet 211 of the gas mixing chamber is located in the circumferential area defined by the first edge 701 and the second edge 702, wherein one end of the air inlet 211 of the gas mixing chamber 21 close to the first edge 701 is located in the circumferential area defined by the first edge 701 and the second edge 702.

[0236] That is, the gas inlet 21 of the gas mixing chamber in the embodiment of the present application corresponds at least partially to the notch of the gas distributing member 70. In this way, when the gas-air mixture enters the gas mixing chamber tangentially, it will not be blocked by the annular gas distributing member 70 located above, thereby avoiding reducing the flow resistance of the gas-air mixture when entering the gas mixing chamber.

[0237] Further, in some possible implementation manners, one end of the air inlet 211 of the gas mixing chamber 21 close to the first edge 211 is spaced apart from the first edge 701 by a distance a, and one end of the air inlet 211 of the gas mixing chamber 21 close to the second edge 702 is spaced apart from the second edge 702 by a distance b;

[0238] where a > 0 and b > 0.

[0239] Further, in some possible implementation manners, when the position of the notch region in the gas mixing chamber 21 is in the first case, 0 mm < a < 20 mm and 0 mm < b < 20 mm;

[0240] when the position of the notch region in the gas mixing chamber 21 is in the second case, 0 mm < a < 20 mm and 0 mm < b < 15 mm.

[0241] As can be seen from the above introduction, one end of the mixing chamber air inlet 211 close to the first edge of the gas distributing member 70 in the embodiment of the present application cannot be blocked by the gas distributing member 70, while one end of the mixing chamber air inlet 211 close to the second edge of the gas distributing member 70 can be blocked by the gas distributing member 70.

[0242] Further, in some possible implementation manners, the burner body 20 further includes:

[0243] An ejector passage, and the ejector passage is communicated with the air inlet 211 of the gas mixing chamber;

[0244] where the ejector passage is designed as an inclined passage extending obliquely upward from the side of the second edge 702 of the air inlet to the side of the first edge 701 of the air inlet, so that the incoming air flow in the ejector passage can flow into the gas mixing chamber 21 tangentially through the air inlet 211 of the gas mixing chamber 21.

[0245] That is, the reason why the gas-air mixture in the embodiment of the present application can flow into the gas mixing chamber along the tangential direction of the gas mixing chamber is due to the structure form of the ejector passage of the ejector tube. That is, in the embodiment of the present application, by improving the structure of the ejector passage of the ejector tube, the gas-air mixture can flow tangentially into the gas mixing chamber to improve the mixing effect between gas and air.

[0246] Further, in some possible implementation manners, the burner body 20 includes a burner base 20a, a burner cover 20b, and a burner cap 20c, where:

[0247] The burner cover 20b is annularly arranged on the outer ring side of the burner base 20a, and forms an annular gas mixing chamber 21 with the burner base 20a;

[0248] The burner head 20c is annularly arranged on the inner ring side of the burner base 20a, and forms a circumferentially communicating annular gap with the end of the burner cover 20b, and the annular gap forms a flame hole passage 22 communicating with the gas mixing chamber 21;

[0249] Wherein the ejector passage is integrally formed with the burner base 20a.

[0250] Further, in some possible embodiments, the burner body further includes an annular gas distributing member 30 annularly arranged at the position where the gas mixing chamber communicates with the flame hole passage; wherein

[0251] The installation position of the annular gas distributing member 30 is lower than the installation position of the gas distributing member 70, and is used for dividing the gas-air mixture in the lower gas mixing chamber 21a into multiple strands and guiding them into the flame hole passage 22;

[0252] Or

[0253] The installation position of the annular gas distributing member 30 is higher than the installation position of the gas distributing member 70, and is used for dividing the gas-air mixture in the upper gas mixing chamber 21b into multiple strands and guiding them into the flame hole passage 22;

[0254] Or

[0255] The installation position of the annular gas distributing member 30 corresponds to the installation position of the gas distributing member 70, and is used for respectively dividing the gas-air mixture in the upper gas mixing chamber into multiple strands and guiding them into the flame hole passage 22 and dividing the gas-air mixture in the lower gas mixing chamber into multiple strands and guiding them into the flame hole passage 22.

[0256] Preferably, the installation position of the annular gas distributing member 30 corresponds to the installation position of the gas distributing member 70, and is used for respectively dividing the gas-air mixture in the upper gas mixing chamber into multiple strands and guiding them into the flame hole passage 22 and dividing the gas-air mixture in the lower gas mixing chamber into multiple strands and guiding them into the flame hole passage 22. The gas distributing member 70 arranged in this way can stratify the gas-air mixture in the gas mixing chamber, improve the mixing effect between gas and air, and by arranging the annular gas distributing member 30, the stratified gas-air mixture can be further deflected and discharged, thereby improving the ejecting ability of the ejector tube, and then further improving the combustion effect of the burner.

[0257] Further, in some possible embodiments, the annular gas distributor 30 is formed with a plurality of gas distribution grooves 31 in its circumferential direction, and each of the plurality of gas distribution grooves 31 can communicate the gas-air mixture chamber 21 and the flame hole passage 22. The plurality of gas distribution grooves 31 are used to divide the gas-air mixture in the gas mixture chamber 21 into multiple strands and guide them upward into the flame hole passage 22.

[0258] Further, in some possible embodiments, the gas mixture chamber 21 includes an inner ring in the chamber and an outer ring in the chamber, and the flame hole passage 22 is provided above the inner ring in the chamber;

[0259] Wherein the annular gas distributor 30 is arranged on one side of the inner ring of the gas mixture chamber 21, and the gas distributor 70 is arranged between the annular gas distributor 30 and the outer ring of the chamber.

[0260] Further, in some possible embodiments, a gap c is formed between the inner ring side of the gas distributor 70 and the outer ring side of the annular gas distributor 30.

[0261] Further, in some possible embodiments, the annular gas distributor 30 includes an annular toothed gas distribution piece having a plurality of gas distribution teeth 32 in the circumferential direction, and a gas distribution groove 31 is formed between two adjacent gas distribution teeth 32;

[0262] Wherein the top surface position of the gas distribution tooth 31 is higher than the upper plate surface position of the gas distributor 70.

[0263] In the third aspect of this embodiment, a burner for a stove is provided. The burner includes a small fire burner main body that emits fire at the center position of the burner and a large fire burner main body that emits fire outside the small fire burner main body;

[0264] The large fire burner main body adopts the burner main body provided in the second aspect of this embodiment.

[0265] Generally speaking, in this embodiment, by arranging a sheet-shaped gas distributor in the annular gas mixture chamber of the burner main body, the gas distributor has a notch area, which can divide the gas mixture chamber into an upper layer gas mixture chamber and a lower layer gas mixture chamber, and the notch area corresponds to the inlet position of the gas mixture chamber. It can make the gas-air mixture distribute more evenly in the gas mixture chamber, and the gas can reduce the smoke content generated during combustion when discharged, improving the combustion efficiency and environmental protection performance.

[0266] Further, the gas distributor is a C-shaped gas distributor, and the arc length of the notch area is smaller than the arc length of the solid part. A good stratified gas distribution effect is achieved, further improving the distribution uniformity of the gas mixture in the gas mixture chamber and optimizing the combustion effect.

[0267] Furthermore, the air inlet of the gas mixing chamber is designed to have a flow trend from the second edge side to the first edge side of the air distributing member, and there are specific situations regarding the positional correspondence between the notch area and the air inlet. In this way, when the gas-air mixture enters the gas mixing chamber tangentially, it will not be blocked by the air distributing member located above, avoiding a reduction in the flow resistance of the gas-air mixture when entering the gas mixing chamber, and ensuring the smooth entry and uniform distribution of the gas mixture.

[0268] Furthermore, the ejector channel is connected to the air inlet of the gas mixing chamber and is designed as an inclined channel that extends obliquely upward from the second edge side of the air inlet to the first edge side of the air inlet. This enables the gas-air mixture to flow tangentially into the gas mixing chamber, improves the mixing effect between gas and air, and further optimizes the combustion conditions.

[0269] Furthermore, the burner body includes a burner base, a burner cover, and a burner head. The burner cover and the burner base form the gas mixing chamber, and the burner head and the end of the burner cover form the flame hole channel; the ejector channel is integrally formed with the burner base. This realizes the formation of a complete burner body structure through the reasonable cooperation of various components, ensuring the smooth flow of the gas mixture and the stable progress of the combustion process.

[0270] Furthermore, an annular air distributing member is circumferentially arranged at the position where the gas mixing chamber communicates with the flame hole channel. There are various situations regarding the installation position of the annular air distributing member and the air distributing member, and it can further divide the stratified gas-air mixture into multiple strands and guide them into the flame hole channel. This further changes the flow direction of the gas mixture, improves the ejecting ability of the ejector tube, optimizes the combustion effect, makes the combustion more complete, further reduces the flue gas content, and improves the combustion efficiency and thermal efficiency.

[0271] Furthermore, the annular air distributing member is formed with a plurality of air distributing grooves in its circumferential direction; the gas mixing chamber includes an inner ring and an outer ring in the chamber, the flame hole channel is arranged above the inner ring in the chamber, the annular air distributing member is arranged on one side of the inner ring of the gas mixing chamber, and the air distributing member is arranged between the annular air distributing member and the outer ring in the chamber; there is a gap between the inner ring side of the air distributing member and the outer ring side of the annular air distributing member; the annular air distributing member includes an annular toothed air distributing sheet, and the top surface position of the air distributing teeth is higher than the upper plate surface position of the air distributing member. This further optimizes the distribution and flow of the gas mixture, improves the performance of the burner, makes the combustion more stable and uniform, further reduces the flue gas content, and improves the combustion efficiency and thermal efficiency.

[0272] In summary, through the above series of structural optimization improvements, the combustion efficiency, thermal efficiency, and environmental protection performance of the stove burner have been significantly enhanced, which can meet the user's requirements for high-efficiency and energy-saving gas stoves, while reducing energy consumption and pollutant emissions, and having good economic and social benefits.

[0273] Example 4

[0274] As Figure 4a - Figure 4f shown, in the first aspect of this embodiment, a flame gas distributor is provided. The flame gas distributor 10 is configured to be installed in the annular flame hole passage 22 of the burner body. The flame gas distributor includes a sheet body, and the sheet body is provided with a pilot flame passage 101. When the flame gas distributor 10 is installed in the flame hole passage 22, the pilot flame passage 101 allows a part of the gas mixture to flow out of the pilot flame passage 101 for combustion.

[0275] The flame gas distributor 10 provided in this embodiment can divide the outgoing flame of the flame hole passage into multiple strands. When the flame gas distributor 10 is installed in the flame hole passage, its installation position can correspond to the pot leg piece of the burner in the radial direction. This can avoid the direct interference between the outgoing flame and the pot leg piece, greatly reduce the temperature of the flue gas and the pot leg piece, reduce heat loss, improve the thermal efficiency and the durability of the pot support. At the same time, since the flame gas distributor 10 is also provided with a small hole-shaped pilot flame passage 101, it can also not affect the pilot flame effect while segmenting the flame.

[0276] Further, in some possible implementation manners, the sheet body is in an arched structure, and the arched structure forms the pilot flame passage 101 at its arched part.

[0277] Further, in some possible implementation manners, the top of the arch is an arc-shaped top.

[0278] Further, in some possible implementation manners, the sheet body forms a socket structure at one end in the extending direction of its pilot flame passage 101.

[0279] Further, in some possible implementation manners, the sheet body forms overlapping portions on both sides of its arched part. The bottom surface of the overlapping portion is used to cooperate with the bottom surface of the annular flame hole passage 22, and the top surface of the arch cooperates with the top surface of the annular flame hole passage 22.

[0280] Further, in some possible implementation manners, the burner body includes:

[0281] A burner base 20a, a burner cover 20b and a burner cap 20c. The burner cover 20b is arranged around the outer ring side of the burner base 20a and forms a circumferentially connected gas mixing chamber 21 with the burner base 20a. The burner cap 20c is arranged around the inner ring side of the burner base 20a and forms a circumferentially connected annular flame hole passage 22 with the end of the burner cover 20b;

[0282] The bottom surface of the overlapping portion is in contact and cooperation with the burner cap 20c, and the top surface of the arch is in contact and cooperation with the burner cover.

[0283] That is, in the embodiment of the present application, by providing a flame gas dividing plate 10 between the burner cap and the burner cover, the gap of the flame hole passage 22 between the burner cap 20c and the burner cover 20b can be made the same as the height of the flame gas dividing plate 40, which is convenient for controlling the size of the flame hole passage 22. In other words, in the embodiment of the present application, only the height of the flame gas dividing plate 10 needs to be designed accordingly, so as to ensure that the gap of the flame hole passage between the burner cap and the burner cover meets the corresponding design requirements, thereby simplifying the manufacturing process of the burner cap and the burner cover in the burner and accurately controlling the dimensional accuracy of the flame hole passage between the burner cap and the burner cover.

[0284] In the second aspect of this embodiment, a burner body is provided. A circumferentially connected flame hole passage 22 is formed inside the burner body 20, and a plurality of pot leg pieces 30 are provided along the circumferential direction of the outer edge of the burner body.

[0285] A plurality of flame gas dividing plates 10 are provided in the flame hole passage 22 and are circumferentially spaced apart along the flame hole passage 22. The positions of the plurality of flame gas dividing plates correspond to the positions of the plurality of pot leg pieces in the radial direction of the burner body.

[0286] The flame gas dividing plate 10 is the flame gas dividing plate provided in the first aspect of this embodiment.

[0287] Further, in some possible implementation manners, the flame hole passage 22 includes a vertical passage section 221 serving as an air inlet section and an inclined passage section 222 serving as an air outlet section.

[0288] The flame gas dividing plate 10 is arranged in the inclined passage section 222 of the flame hole passage 22.

[0289] It should be noted that the inclined passage section 222 of the flame hole passage 22 is a key dimension in the burner design. In this embodiment, by providing a plurality of circumferentially distributed and equally high flame gas dividing plates 10 in the inclined passage section 222, the manufacturing process of the burner cap and the burner cover in the burner can be simplified, and the dimensional accuracy of the inclined passage section 222 in the flame hole passage 22 can be accurately controlled.

[0290] Further, in some possible implementation manners, the burner body 20 includes a burner base 20a, a burner cover 20b, and a burner cap 20c. The burner cover 20b is arranged around the outer circle side of the burner base 20a and forms an annular gas mixing chamber 21 with the burner base 20a. The burner cap 20c is arranged around the inner circle side of the burner base 20a and forms a circumferentially connected flame hole passage 22 with the end of the burner cover 20b.

[0291] One end of the burner cover 20b is bent inwardly upward away from the inner ring of the burner base 20a. A flame hole passage 22 is formed between the inwardly bent edge of the burner cover 20b and the burner cap 20c. The inwardly bent edge of the burner cover 20b includes an inclined portion of the burner cover and a vertical portion of the burner cover. The burner cap 20c includes an inclined portion of the burner cap and a vertical portion of the burner cap.

[0292] Among them, the inclined portion of the burner cover and the inclined portion of the burner cap cooperate to form an inclined on-off section 221 of the flame hole passage 22, and the vertical portion of the burner cover and the vertical portion of the burner cap cooperate to form a vertical on-off section 222 of the flame hole passage 22.

[0293] Furthermore, in some possible embodiments, the burner body 20 includes a burner base 20a, a burner cover 20b, and a burner cap 20c. A circumferentially communicating flame hole passage 22 is configured between the burner cover 20b and the burner cap 20c.

[0294] A plurality of pot leg pieces 30 are circumferentially spaced apart on the burner base 20a along the circumference of the burner base. This can prevent the flame from the flame hole passage 22 from directly interfering with the pot leg pieces 30, greatly reducing the temperature of the flue gas and the pot leg pieces, reducing heat loss, improving the thermal efficiency and the durability of the pot support. At the same time, since the flame dividing piece 10 is also provided with a small hole-shaped ignition passage 101, this can also intermittently flame without affecting the ignition effect.

[0295] In the third aspect of this embodiment, a stove burner is provided, which includes the burner body provided in the second aspect of this embodiment.

[0296] In the third aspect of this embodiment, a stove burner is also provided, which is provided with a large-fire burner body and a small-fire burner body, and the large-fire burner adopts the burner body provided in the second aspect of this embodiment.

[0297] Generally speaking, this embodiment provides a flame dividing piece for being installed in the annular flame hole passage of the burner body. The flame dividing piece includes a sheet body, and the sheet body is configured with an ignition passage for allowing part of the gas mixture to flow out through the ignition passage for combustion. By dividing the flame from the flame hole passage into multiple strands, it is possible to prevent the flame from directly interfering with the pot leg pieces, greatly reducing the temperature of the flue gas and the pot leg pieces, reducing heat loss, improving the thermal efficiency and the durability of the pot support. At the same time, the design of the ignition passage does not affect the ignition effect while intermittently flaming, ensuring the stability and continuity of combustion.

[0298] Furthermore, the sheet body is in an arched structure, and a fire guiding channel is formed at the arched part of the arched structure; the top of the arch of the arched structure is an arc-shaped top; one end of the sheet body in the extending direction of the fire guiding channel forms a socket structure; the two sides of the arched part of the sheet body form overlapping parts, the bottom surface of the overlapping part is used to cooperate with the bottom surface of the annular fire hole channel, and the top surface of the arch is in contact with the top surface of the annular fire hole channel. The design of the arched structure and the arc-shaped top enables the flame gas dividing sheet to better adapt to the shape of the fire hole channel, improves the matching effect between the flame gas dividing sheet and the fire hole channel, and further optimizes the distribution and combustion effect of the flame. The design of the socket structure and the overlapping parts facilitates the installation and fixation of the flame gas dividing sheet, and improves the structural stability and reliability of the burner.

[0299] Furthermore, the burner body includes a burner base, a burner cover and a fire cover. The burner cover and the burner base form a gas mixing chamber, and the fire cover and the end of the burner cover form a fire hole channel; the bottom surface of the overlapping part is in contact and cooperation with the fire cover, and the top surface of the arch is in contact and cooperation with the burner cover. By arranging the flame gas dividing sheet between the fire cover and the burner cover, the gap of the fire hole channel between the fire cover and the burner cover and the height of the flame gas dividing sheet are kept the same, which is convenient for controlling the size of the fire hole channel, simplifies the manufacturing process of the fire cover and the burner cover in the burner, and can very accurately control the dimensional accuracy of the fire hole channel between the fire cover and the burner cover.

[0300] Furthermore, a plurality of flame gas dividing sheets are arranged at intervals along the circumferential direction of the fire hole channel in the fire hole channel of the burner body, and the positions of the plurality of flame gas dividing sheets correspond one by one to the positions of a plurality of pot leg sheets in the radial direction of the burner body. Further, the outgoing flame of the fire hole channel is prevented from directly interfering with the pot leg sheets, the relative position relationship between the flame and the pot leg sheets is optimized, the temperature of the flue gas and the pot leg sheets is further reduced, the heat loss is reduced, and the thermal efficiency and the durability of the pot support are improved.

[0301] Furthermore, the fire hole channel includes a vertical channel section as the intake section and an oblique channel section as the outlet section; the flame gas dividing sheet is arranged in the oblique channel section of the fire hole channel. The oblique channel section is a key dimension in the burner design. By arranging a plurality of circumferentially distributed and equi-height flame gas dividing sheets in the oblique channel section, the manufacturing process of the fire cover and the burner cover in the burner can be simplified, and the dimensional accuracy of the oblique channel section in the fire hole channel can be very accurately controlled, further optimizing the combustion conditions and improving the combustion efficiency and thermal efficiency.

[0302] In summary, through the above series of structural optimization improvements, the combustion efficiency, thermal efficiency and environmental protection performance of the stove burner have been significantly improved, which can meet the needs of users for high-efficiency and energy-saving gas stoves, while reducing energy consumption and pollutant emissions, and having good economic and social benefits.

[0303] Embodiment 5

[0304] As shown Figure 5a - Figure 5c in the figure, this embodiment provides a burner for a stove, including:

[0305] A small-fire burner main body, the small-fire burner main body is formed with a small-fire hole channel 25, and the small-fire hole channel includes a small-fire hole channel one 251 as an intake section and a small-fire hole channel two 252 as an outlet section;

[0306] wherein the flow area of the small-fire hole channel one 251 is smaller than that of the small-fire hole channel two 252.

[0307] In the embodiment of the present application, by designing the cross-sectional area of the small-fire hole channel one 251 to be smaller than that of the small-fire hole channel two 252, the problem of flashback in the small-fire hole channel can be prevented.

[0308] Furthermore, in some possible implementation manners, the small-fire burner main body includes an outer annular small-fire burner cover 22 and an inner annular small-fire cover 21. A vertically extending gap channel one is defined between the inner ring surface of the small-fire burner cover 22 and the outer ring surface of the small-fire cover 21, and a gap channel two that is connected to the extending end of the gap channel one and extends obliquely outward;

[0309] The small-fire burner main body further includes an annular small-fire burner base 23, and at least part of the small-fire burner base 23 is embedded in the gap channel one;

[0310] wherein the inner ring surface of the small-fire burner base 23 embedded in the gap channel one is attached to the outer ring surface of the small-fire cover 21, and a gap channel three is defined between the outer ring surface of the small-fire burner base 23 and the inner ring surface of the small-fire burner cover 22. The gap channel three serves as the small-fire hole channel one 251 of the small-fire burner main body, and the gap channel two serves as the small-fire hole channel two 252.

[0311] Furthermore, in some possible implementation manners, the small-fire burner base 23 embedded in the gap channel one has a machined surface, and a small-fire hole channel one 251 is defined between the machined surface of the small-fire burner base 23 and the inner ring surface of the small-fire burner cover 22.

[0312] It should be noted that the fire outlet area and heat load of the small-fire hole channel in the burner are controlled by the small-fire hole channel one 251. Since the small-fire burner base 23 has a machined surface and its gap width dimension is relatively easier to control, the size of the small-fire hole channel 251 defined by the small-fire burner base 23 and the small-fire burner cover 22 is easier to control, thereby reducing the process difficulty of the burner and improving the dimensional accuracy of the small-fire hole channel one 251.

[0313] It should also be noted that the small fire hole passage two 252 mainly controls the direction of the small fire flame, that is, the inclination angle, and the dimensional accuracy range of its gap width can be relaxed.

[0314] Further, in some possible implementation manners, the small fire burner base 23 supports the small fire cap 21 disposed inside.

[0315] The burner further includes a large fire burner main body, and the large fire burner main body includes an annular large fire burner base 13, and the large fire burner base 13 supports the small fire burner cover 22 located outside.

[0316] Wherein, the large fire burner base 13 supporting the small fire burner cover 22 and the small fire burner base 23 supporting the small fire cap 21 are butted and fitted together up and down, and define a small fire gas mixing cavity 24 communicating with the small fire hole passage one 251.

[0317] Further, in some possible implementation manners, the small fire cap 21 has an outwardly bent outer bent structure, and the small fire burner cover 22 has an inwardly bent inner bent structure.

[0318] Wherein, the small fire burner base 23 cooperates with the outer bent structure of the small fire cap 21, and the large fire burner base 13 cooperates with the inner bent structure of the small fire burner cover 22.

[0319] Further, in some possible implementation manners, the small fire cap 21 includes a first annular portion 211 of the fire cap extending vertically upward, and a second annular portion 212 of the fire cap connected to the extending end of the first annular portion 211 of the fire cap and bent outward, and the connection position between the first annular portion 211 of the fire cap and the second annular portion 212 of the fire cap constitutes the outer bent structure of the small fire cap 21.

[0320] The small fire burner cover 22 includes a first annular portion 221 of the burner cover extending vertically upward, and a second annular portion 222 of the burner cover connected to the extending end of the first annular portion 221 of the burner cover and bent inward, and the connection position between the first annular portion 221 of the burner cover and the second annular portion 222 of the burner cover constitutes the inner bent structure of the small fire burner cover 22.

[0321] Further, in some possible implementation manners, the second annular portion 222 of the small fire burner cover includes a first sub-portion 2221 of the second annular portion of the burner cover extending obliquely downward, and a second sub-portion 2221 of the second annular portion of the burner cover connected to the extending end of the first sub-portion 2221 of the second annular portion and extending vertically downward.

[0322] A vertically extending gap passage one is defined between the second annular portion B2222 of the burner cap and the first annular portion 211 of the burner head, and an obliquely extending gap passage two is defined between the second annular portion A2221 of the burner cap and the second annular portion 212 of the burner head.

[0323] Further, in some possible embodiments, the small fire gas mixing chamber 24 has a small air inlet, and the air flow entering the medium and small fire gas mixing chamber through the small air inlet can flow into the small fire gas mixing chamber 24 along the tangential direction of the small fire gas mixing chamber 24.

[0324] Further, in some possible embodiments, the burner further includes a large fire burner body, which includes an annular large fire burner cap 12, an annular large fire burner head 11, and a disc-shaped large fire burner base 13. An annular large fire gas mixing chamber 14 and an annular large fire hole passage 15 are defined between the large fire burner cap 12, the large fire burner head 11, and the large fire burner base 13, and the large fire gas mixing chamber 14 and the large fire hole passage 15 are connected.

[0325] Further, in some possible embodiments, the burner further includes a gas distribution module, which includes a gas distribution module one, a gas distribution module two, and a gas distribution module three;

[0326] Wherein

[0327] The gas distribution module one is arranged in the large fire gas mixing chamber 14 and is used for vertically stratifying the gas-air mixture in the large fire gas mixing chamber 14;

[0328] The gas distribution module two is arranged at the connection position between the large fire gas mixing chamber 14 and the large fire hole passage 15 and is used for circumferentially dividing the stratified gas-air mixture in the large fire gas mixing chamber into multiple strands and then longitudinally guiding it into the large fire hole passage 15;

[0329] The gas distribution module three is arranged in the large fire hole passage 15 and is used for circumferentially dividing the flame in the large fire hole passage 15 into multiple strands;

[0330] Wherein the setting position of the gas distribution module three corresponds to the position of the pot leg cover 60 of the burner in the radial direction of the burner.

[0331] Further, in some possible embodiments, the large fire gas mixing chamber 14 also has a large air inlet, and the air flow entering the medium and large fire gas mixing chamber 14 through the large air inlet can enter the large fire gas mixing chamber 14 along the tangential direction of the large fire gas mixing chamber 14;

[0332] The gas distribution module one includes a C-shaped gas distributor 40 disposed in the large-fire gas mixing chamber 14. The notch part of the C-shaped gas distributor 40 corresponds to the large air inlet, that is, the notch of the C-shaped gas distributor 40 corresponds to the mixing chamber air inlet of the large-fire gas mixing chamber 14;

[0333] The gas distribution module two includes a toothed annular gas distributor 30 disposed at the connecting position of the large-fire gas mixing chamber 14 and the large-fire flame hole channel 15. A plurality of gas distribution grooves 31 are formed in the circumferential direction of the annular gas distributor 30. The upper plate surface position of the C-shaped gas distributor 40 is lower than the top position of the gas distribution groove 31, and there is a distance between the inner ring of the C-shaped gas distributor 40 and the outer ring of the annular gas distributor 30;

[0334] The gas distribution module three includes a plurality of flame gas distributors 50 disposed in the large-fire flame hole channel. The plurality of flame gas distributors 50 are circumferentially distributed along the large-fire flame hole channel 15, and each flame gas distributor 50 is provided with a pilot flame channel 51 communicating the air inlet side and the air outlet side of the large-fire flame hole channel 15.

[0335] Generally speaking, in this embodiment, the small-fire flame hole channel includes a small-fire flame hole channel one as the air inlet section and a small-fire flame hole channel two as the air outlet section. The flow area of the small-fire flame hole channel one is smaller than that of the small-fire flame hole channel two. This structural design can prevent the problem of flameout in the small-fire flame hole channel, improve the stability and reliability of small-fire combustion, and ensure the normal operation of the burner in the small-fire state.

[0336] Furthermore, the small-fire burner body includes an annular small-fire burner cover, an annular small-fire burner cap, and an annular small-fire burner base. The small-fire burner base is embedded in the clearance channel one, and its inner ring surface is attached to the outer ring surface of the small-fire burner cap. A clearance channel three is defined between the outer ring surface of the small-fire burner base and the inner ring surface of the small-fire burner cover as the small-fire flame hole channel one, and the clearance channel two is used as the small-fire flame hole channel two; the small-fire burner base has a machined surface, and a small-fire flame hole channel one is defined between the machined surface of the small-fire burner base and the inner ring surface of the small-fire burner cover. Through this structural optimization, the fire outlet area and heat load of the small-fire flame hole channel are controlled by the small-fire flame hole channel one. Since the small-fire burner base has a machined surface, its gap width size is relatively easier to control, thereby reducing the process difficulty of the burner and improving the dimensional accuracy of the small-fire flame hole channel one. The small-fire flame hole channel two mainly controls the direction of the small-fire flame, that is, the inclination angle, and the dimensional accuracy range of its gap width can be relaxed, further simplifying the manufacturing process.

[0337] Further, the high-fire burner body includes an annular high-fire burner cover, an annular high-fire burner cap, and a disc-shaped high-fire burner base. An annular high-fire gas mixing chamber and an annular high-fire flame hole passage are defined between the high-fire burner cover, the high-fire burner cap, and the high-fire burner base, and the high-fire gas mixing chamber is in communication with the high-fire flame hole passage. A complete high-fire burner body structure is formed, providing good conditions for high-fire combustion and ensuring the stability and efficiency of high-fire combustion.

[0338] Further, the burner further includes a gas distribution module, which includes Gas Distribution Module 1, Gas Distribution Module 2, and Gas Distribution Module 3; Gas Distribution Module 1 is arranged in the high-fire gas mixing chamber and is used for vertically stratifying the gas-air mixture in the high-fire gas mixing chamber; Gas Distribution Module 2 is arranged at the communication position between the high-fire gas mixing chamber and the high-fire flame hole passage and is used for circumferentially dividing the stratified gas-air mixture in the high-fire gas mixing chamber into multiple strands and then longitudinally guiding it into the high-fire flame hole passage; Gas Distribution Module 3 is arranged in the high-fire flame hole passage and is used for circumferentially dividing the flame in the high-fire flame hole passage into multiple strands. Through the arrangement of the gas distribution module, the distribution and flow of the gas-air mixture are further optimized, the combustion efficiency and thermal efficiency are improved, the combustion is made more sufficient and uniform, the flue gas content is reduced, and the environmental protection performance of the burner is improved. The setting position of Gas Distribution Module 3 corresponds to the position of the pot leg cover of the burner in the radial direction of the burner, which can avoid the interference between the flame and the pot leg cover, reduce the temperature of the pot leg cover, reduce heat loss, improve the thermal efficiency and the durability of the pot support.

[0339] Further, the high-fire gas mixing chamber also has a large air inlet, and the incoming air flow entering the high-fire gas mixing chamber through the large air inlet can flow into the high-fire gas mixing chamber along the tangential direction of the high-fire gas mixing chamber; Gas Distribution Module 1 includes a C-shaped gas distribution member arranged in the high-fire gas mixing chamber, and the notch part of the C-shaped gas distribution member corresponds to the large air inlet; Gas Distribution Module 2 includes a toothed annular gas distribution member arranged at the communication position between the high-fire gas mixing chamber and the high-fire flame hole passage. Multiple gas distribution grooves are formed in the circumferential direction of the annular gas distribution member. The upper plate surface position of the C-shaped gas distribution member is lower than the groove top position of the gas distribution groove, and there is a distance between the inner ring of the C-shaped gas distribution member and the outer ring of the annular gas distribution member; Gas Distribution Module 3 includes multiple flame distribution fins arranged in the high-fire flame hole passage. The multiple flame distribution fins are distributed along the circumference of the high-fire flame hole passage, and each flame distribution fin is provided with a pilot flame passage connecting the air inlet side and the air outlet side of the high-fire flame hole passage. Through the tangential air inlet mode of the high-fire gas mixing chamber and the reasonable cooperation of the gas distribution module, the mixing effect between gas and air is further improved, the flow direction and distribution of the gas mixture are optimized, the combustion is made more sufficient and stable, the combustion efficiency and thermal efficiency are further improved, the flue gas content is reduced, and the environmental protection performance of the burner is improved.

[0340] In summary, through the above series of structural optimizations and improvements, the combustion efficiency, thermal efficiency, and environmental performance of the stove burner have been significantly improved, meeting the user's demand for an efficient and energy-saving gas stove, while reducing energy consumption and pollutant emissions, and having good economic and social benefits.

[0341] Embodiment 6

[0342] As Figure 6a - Figure 6c shown, in the first aspect of this embodiment, an energy-saving plate is provided, which is used to surround the burner body of the stove burner and cooperate with the pot leg piece 60 of the stove burner. The energy-saving plate 70 includes:

[0343] A ring-shaped radiation plate 71 and a ring-shaped tray 72 arranged up and down, where the ring-shaped radiation plate 71 is located above the ring-shaped tray 72;

[0344] The radiation plate 71 has radiation plate perforations, and the tray 72 has tray perforations. The radiation plate perforations and the tray perforations are arranged up and down corresponding to each other for the pot leg piece 60 to pass through;

[0345] The radiation plate 71 and the tray 72 are configured such that when the pot leg piece passes through the ring-shaped radiation plate 71 and the ring-shaped tray 72 and cooperates with the burner body, the radiation plate 71 and the tray 72 can be non-contact with each other.

[0346] In the embodiment of the present application, by setting the radiation plate 71 and the tray 72 that support the pot leg piece 60 to be non-contact with each other, the heat conduction and diffusion of the radiation plate 71 closest to the flame downward can be reduced, and more heat is radiated to the cooking utensil, improving the thermal efficiency.

[0347] Further, in some possible implementation manners, one of the radiation plate 71 and the tray 72 is used to be welded to the pot leg piece 60, and the other is used to be snap-connected to the pot leg piece 72.

[0348] That is, when the radiation plate 71 and the tray 72 in this embodiment are cooperatively installed with the pot leg piece 60, they can be fixed to the pot leg piece 60 by welding and / or snap-connection, and the radiation plate 71 and the tray 72 after being fixed can still be non-contact with each other.

[0349] Further, in some possible implementation manners, the pot leg piece 60 includes a pot leg piece head for supporting the cooking utensil and a pot leg piece support leg connected to the bottom end of the pot leg piece head and extending downward;

[0350] The upper disk surface of the radiation plate 71 is used to be welded to the lower end of the pot leg piece head, and / or the radiation plate perforations of the radiation plate 71 are used to be welded to the pot leg piece support leg;

[0351] The tray perforation position of the tray 72 is provided with a clamping structure, and the foot of the pot piece support is provided with a bayonet 79. The clamping structure can be clamped into the bayonet 79 of the foot of the pot piece support when the foot of the pot piece 60 passes through the tray perforation, so as to fix the tray 72 and the foot of the pot piece 60 through the clamping cooperation of the clamping structure and the bayonet 79.

[0352] Further, in some possible embodiments, the clamping structure includes an elastic piece 74 arranged at the tray perforation position, and the bayonet 79 is a notch recessed on the outer peripheral side of the foot of the pot piece support;

[0353] When the foot of the pot piece support penetrates the tray perforation from top to bottom, the bottom end of the foot of the pot piece support can downwardly press the elastic piece 74 to cause the elastic piece 74 to undergo elastic deformation. When the foot of the pot piece support moves to the position corresponding to the bayonet 79 and the elastic piece 74, the elastic piece 74 can reset under its own elastic action and be clamped into the bayonet 79 of the foot of the pot piece support.

[0354] Further, in some possible embodiments, the inner side of the energy-saving tray 70 and the outer side of the burner body are in clearance fit and form an outer secondary air supply channel 76. In this way, when the burner is in use, the outer secondary air supply channel 76 can supply air to the flame of the flame hole channel on the outside of the flame hole channel to improve the combustion effect of the burner.

[0355] Further, in some possible embodiments, the outer secondary air supply channel 76 is designed as an inclined channel that extends obliquely upward from outside to inside. The channel inlet width of the outer secondary air supply channel 76 located on the outside is x2, and the channel outlet width of the outer secondary air supply channel 76 located on the inside is x1;

[0356] where x2≥x1.

[0357] In this embodiment, by designing the channel inlet width x2 of the outer secondary air supply channel 76 to be greater than or equal to the channel outlet width x1 of the outer secondary air supply channel, it can make the outer secondary air supply channel 76 smoother when admitting air.

[0358] Further, in some possible embodiments, the outer secondary air supply channel 76 is designed as a tapered inclined channel that extends obliquely upward from outside to inside;

[0359] Or

[0360] The outer secondary air supply channel 76 is designed as an equally spaced inclined channel that extends obliquely upward from outside to inside.

[0361] Further, in some possible embodiments, the inlet air direction of the outer secondary air supply channel 76 forms an angle a with the horizontal plane;

[0362] The outlet air direction of the outer secondary air supply channel 76 forms an angle b with the horizontal plane;

[0363] where a ≥ b.

[0364] Furthermore, in some possible embodiments, the radiation disk 71 includes a first annular portion 711 of the radiation disk that extends obliquely upward from the inside to the outside;

[0365] The tray 72 includes a first annular portion 721 of the tray that extends obliquely downward from the inside to the outside;

[0366] The inner side of the first annular portion 721 of the tray is located below the inner side of the first annular portion 711 of the radiation disk. The outer secondary air supply channel 76 is defined between the first annular portion 721 of the tray and the outer side of the burner body, and a channel outlet communicating with the outer secondary air supply channel 76 is defined between the inner edge of the first annular portion 711 of the radiation disk and the outer side of the burner body.

[0367] That is, the outer secondary air supply channel 76 in the embodiments of the present application is obtained by the cooperation between the two components of the radiation disk 71 and the tray 72 and the burner body part, without the need to separately open holes or slots in the components to achieve the function of secondary air supply.

[0368] Furthermore, in some possible embodiments, the slope k1 of the downward oblique extension of the first annular portion 721 of the tray satisfies: when the first annular portion 721 of the tray and the outer side of the burner body are in clearance fit, an outer secondary air supply channel 76 in a tapered form or an equidistant form from the outside to the inside can be defined between them.

[0369] Furthermore, in some possible embodiments, the tray 72 further includes a second annular portion 722 of the tray that is provided at the extended end of the first annular portion 721 of the tray and extends obliquely upward. The outer side of the burner body includes a slanted outer ring surface 77 of the burner body for clearance fit with the first annular portion 721 of the tray and a vertical outer ring surface 78 of the burner body that is formed at the extended end of the slanted outer ring surface 77 of the burner body and continues to extend downward;

[0370] The length L of the downward oblique extension of the first annular portion 721 of the tray satisfies: when the first annular portion 721 of the tray and the slanted outer ring surface 77 of the burner body are in clearance fit, the downward extension line of the second annular portion 722 of the tray can intersect with the vertical outer ring surface 78 of the burner body. Through such a setting, the internal structure of the burner cannot be seen from the user's perspective, thereby making the appearance of the burner more tidy.

[0371] It can be seen that in this embodiment, by designing the slope k and length L of the first annular part 721 of the tray, on the one hand, the appearance of the burner can be made more neat and beautiful, and on the other hand, the combustion effect of the burner can be improved {because the first annular part 721 of the tray can define a tapered or equally spaced outer secondary air supply channel 76 that extends obliquely upward from outside to inside between the burner main body part}.

[0372] Further, in some possible implementation manners, the burner main body includes a burner base 13, and a burner cap 11 and a burner cover 12 that are arranged on the burner base 13 and cooperate with each other inside and outside. A gas mixing cavity 14 and a flame hole channel 15 that are connected and communicated are configured between the burner base 13, the burner cap 11, and the burner cover 12;

[0373] The burner cover 12 includes a burner cover inclined ring surface that extends obliquely downward from inside to outside. The burner base 13 includes a base inclined ring surface that extends obliquely downward from inside to outside. The bottom end of the burner cover inclined ring surface is engaged and cooperated with the top end of the base inclined ring surface;

[0374] Wherein the burner cover inclined ring surface, as a part of the burner main body inclined outer ring surface 77, is in clearance fit with the first annular part 721 of the tray, and the base inclined ring surface, as another part of the burner main body inclined outer ring surface 77, is in clearance fit with the first annular part 721 of the tray;

[0375] A pot leg piece slot 131 for inserting the pot leg piece 60 is provided on the base inclined ring surface 77.

[0376] Further, in some possible implementation manners, the radiation plate 71 sequentially includes a radiation plate first annular part 711, a radiation plate second annular part 712, and a radiation plate third annular part 713 from inside to outside;

[0377] Wherein the radiation plate first annular part 711 extends obliquely upward from inside to outside, the radiation plate second annular part 712 extends horizontally, and the radiation plate third annular part 713 extends obliquely upward from inside to outside.

[0378] Further, in some possible implementation manners, the energy-saving plate 70 further includes:

[0379] A ring-shaped reflection plate 73, and the reflection plate 73 is located in the installation space enclosed by the upper radiation plate 71 and the lower tray 72;

[0380] A reflection plate through hole for the pot leg piece 60 to pass through is formed on the reflection plate 73.

[0381] In this embodiment, by arranging a reflective disk 73 between the radiation disk 71 and the tray 72, it is possible to further reduce the downward conduction and diffusion of the heat of the radiation disk 71 closest to the flame, so that more heat is radiated upward to the cooking utensil, thereby improving the thermal efficiency of the burner.

[0382] Further, in some possible implementation manners, the reflective disk 73 has an inner-low and outer-high structure. The reflective disk 73 sequentially includes a first annular portion 731 of the reflective disk, a second annular portion 732 of the reflective disk, and a third annular portion 733 of the reflective disk from inside to outside. The first annular portion 731 of the reflective disk extends obliquely upward from inside to outside, the second annular portion 732 of the reflective disk extends horizontally from inside to outside, and the third annular portion 733 of the reflective disk extends obliquely upward from inside to outside;

[0383] Among them, the inner side of the first annular portion 731 of the reflective disk, the inner side of the first annular portion 711 of the radiation disk, and the inner side of the first annular portion 721 of the tray cooperate with each other, and the outer side of the third annular portion 733 of the reflective disk, the outer side of the third annular portion 713 of the radiation disk, and the outer side of the second annular portion 722 of the tray cooperate with each other.

[0384] In the second aspect of this embodiment, a burner body is provided, which includes the energy-saving disk provided in the first aspect of this embodiment.

[0385] In the third aspect of this embodiment, a stove burner is provided, which includes a pot leg piece and the burner body provided in the second aspect of this embodiment.

[0386] In the third aspect of this embodiment, a stove burner is further provided, which is provided with a large-fire burner body and a small-fire burner body. The large-fire burner body adopts the burner body provided in the second aspect of this embodiment

[0387] Further, in some possible implementation manners, the pot leg piece 60 includes a pot leg piece head for supporting the pot and a pot leg piece support leg connected to the bottom end of the pot leg piece head and extending downward;

[0388] The radiation disk 71 sequentially includes a first annular portion 711 of the radiation disk, a second annular portion 712 of the radiation disk, and a third annular portion 713 of the radiation disk from inside to outside;

[0389] Among them, the first annular portion 711 of the radiation disk extends obliquely upward from inside to outside, the second annular portion 712 of the radiation disk extends horizontally, and the third annular portion 713 of the radiation disk extends obliquely upward from inside to outside

[0390] Among them, both the second annular portion 712 of the radiation disk and the third annular portion 713 of the radiation disk are used to cooperate with the pot leg piece head. After cooperation, the top position of the pot leg piece head can be higher than the top position of the third annular portion 713 of the radiation disk, and the distance between the two is x3;

[0391] The distance x3 between the top end of the pot leg piece head and the top end of the third annular part 713 of the radiation plate is greater than the channel outlet width x1 of the outer secondary air supply channel 76.

[0392] In the embodiment of the present application, by setting the distance x3 between the top end of the pot leg piece head and the top end of the third annular part of the radiation plate to be greater than the channel outlet width x1 of the outer secondary air supply channel, the air in the outer secondary air supply channel 76 can be effectively discharged, avoiding a large resistance when the outer secondary air supply channel 76 supplies air.

[0393] Furthermore, in some possible implementation manners, the inner side of the energy-saving plate 70 and the outer side of the burner body are in clearance fit with each other and form an outer secondary air supply channel 76;

[0394] The burner body is also provided with a pot leg piece slot 131, and the pot leg piece 60 is inserted into the pot leg piece slot 131 of the burner body through the pot leg piece socket of the energy-saving plate 70;

[0395] The pot leg piece 60 inserted into the pot leg piece slot 131 passes through the outer secondary air supply channel 76, so as to be able to take away the heat on the pot leg piece 60 by using the air flow in the outer secondary air supply channel.

[0396] Generally speaking, in this embodiment, the energy-saving plate includes an upper and lower annular radiation plate and an annular tray, and the two do not contact each other. It reduces the downward conduction and diffusion of the heat of the radiation plate closest to the flame, enables more heat to be radiated to the cooking utensil, and improves the thermal efficiency.

[0397] Furthermore, the radiation plate and the tray are fixed to the pot leg piece by welding and / or clamping. It ensures the stable connection between the energy-saving plate and the pot leg piece, and at the same time maintains the separated state between the radiation plate and the tray, further optimizing the thermal efficiency.

[0398] Furthermore, the inner side of the energy-saving plate is in clearance fit with the outer side of the burner body to form an outer secondary air supply channel; the channel is designed as a tapered or equally spaced inclined channel that extends obliquely upward from the outside to the inside, and the channel inlet width is greater than or equal to the channel outlet width. It can provide air supplement for the flame outside the flame hole channel, improve the combustion effect, and at the same time ensure the smoothness of air supplement, further optimizing the combustion efficiency and thermal efficiency.

[0399] Furthermore, a reflection plate is arranged between the radiation plate and the tray, and the reflection plate has a structure with a lower inner side and a higher outer side. It further reduces the downward conduction and diffusion of the heat of the radiation plate, enables more heat to be radiated upward to the cooking utensil, and further improves the thermal efficiency.

[0400] Further, the burner body includes a burner base, a burner cap, and a burner cover, defining a connected gas mixing chamber and a flame hole passage; the inclined annular surface of the burner cover is in clearance fit with the first annular portion of the tray. A complete burner body structure is formed, providing good conditions for combustion, and at the same time cooperating with the energy-saving tray to optimize the combustion efficiency and thermal efficiency.

[0401] Further, the pot feet are inserted into the pot feet slots of the burner body through the pot feet sockets of the energy-saving tray, and the pot feet pass through the outer secondary air supply channel. The air flow in the outer secondary air supply channel can be used to take away the heat on the pot feet, further optimizing the thermal efficiency and ensuring the stable connection between the pot feet and the burner body.

[0402] In summary, through the above series of structural optimizations and improvements, the combustion efficiency, thermal efficiency, and environmental performance of the stove burner have been significantly improved, meeting the user's requirements for high-efficiency and energy-saving gas stoves, while reducing energy consumption and pollutant emissions, and having good economic and social benefits.

[0403] Embodiment 7

[0404] As Figure 7a - Figure 7b shown, in the first aspect of this embodiment, an energy-saving device is provided for being installed on the burner body of a stove burner and cooperating with the pot feet 60 of the stove burner. The energy-saving device 80 includes:

[0405] An annular energy-saving cover 801, on which there is a pot feet perforation for passing through the pot feet 60;

[0406] The pot feet 60 include a pot feet head for supporting the cookware and a pot feet leg provided at the bottom end of the pot feet head and extending downward. When the pot feet leg is inserted into the pot feet perforation on the energy-saving cover 801, the pot feet head is located above the energy-saving cover 801.

[0407] The energy-saving device in this embodiment includes an annular energy-saving cover 801, and there is a pot feet perforation on the energy-saving cover 801 for inserting the pot feet 60. In this way, when the energy-saving device is installed on the periphery of the burner body and the pot feet 60 are inserted, the pot feet head can be located above the energy-saving cover 801, so as to reduce the downward transfer and diffusion of the heat of the pot feet head, and make more heat radiate upward to the bottom of the cookware above the pot feet head, thereby improving the thermal efficiency of the burner.

[0408] Further, in some possible implementation manners, the energy-saving device further includes an annular energy-saving cover tray 802 provided below the energy-saving cover 801;

[0409] The energy-saving cover 801 and the energy-saving cover tray 802 are arranged at intervals up and down and enclose a heat insulation cavity 81. The energy-saving cover tray 802 and the energy-saving cover 801 are provided with pot leg piece through-holes corresponding up and down for passing through the pot leg pieces 60. When the pot leg pieces 60 are passed through the pot leg piece through-holes, the pot leg piece feet pass through the heat insulation cavity.

[0410] The energy-saving device 80 in this embodiment forms a closed heat insulation cavity 81, which can reduce the downward conduction and diffusion of the heat of the energy-saving cover 801 closest to the flame, so that more heat is radiated upward to the cooking utensil to improve the thermal efficiency of the burner.

[0411] Further, in some possible implementation manners, the inner ring sides of the energy-saving cover tray 802 and the energy-saving cover 801 are fixedly matched together;

[0412] and / or

[0413] the outer ring sides of the energy-saving cover tray 802 and the energy-saving cover 801 are fixedly matched together.

[0414] Further, in some possible implementation manners, the burner body includes a burner body inclined outer ring surface 77 that extends obliquely downward from the inside to the outside;

[0415] The energy-saving device 80 includes an energy-saving device inclined inner ring surface that extends obliquely downward from the inside to the outside;

[0416] wherein the energy-saving device inclined inner ring surface is used to cooperate with the burner body inclined outer ring surface 77.

[0417] Further, in some possible implementation manners, the burner body part further includes a burner body vertical outer ring surface 78 formed at the extending end of the burner body inclined outer ring surface 77 and extending downward continuously;

[0418] The energy-saving device 80 further includes an energy-saving device vertical inner ring surface formed at the extending end of the energy-saving device inclined inner ring surface and extending downward continuously;

[0419] wherein the energy-saving device vertical inner ring surface is used to cooperate with the burner body vertical outer ring surface 78.

[0420] In the second aspect of this embodiment, a burner body is provided, which includes the energy-saving device provided in the first aspect of this embodiment.

[0421] In the third aspect of this embodiment, a stove burner is provided, which includes pot leg pieces 60 and the burner body provided in the second aspect of this embodiment.

[0422] In the third aspect of this embodiment, a burner for a stove is further provided, which is provided with a main burner body for high fire and a main burner body for low fire. Among them, the main burner body for high fire adopts the burner body provided in the second aspect of this embodiment.

[0423] Further, in some possible implementation manners, the pot foot piece 60 includes a pot foot piece head for supporting a cooking pot, and a pot foot piece leg provided at the bottom end of the pot foot piece head and extending downward;

[0424] When the pot foot piece leg is inserted into the pot foot piece perforation on the energy-saving cover 801, the pot foot piece head is located above the energy-saving cover 801, and there is a distance between the lower end surface of the pot foot piece head and the upper cover surface of the energy-saving cover 801.

[0425] Further, in some possible implementation manners,

[0426] The pot foot piece leg is welded to the energy-saving cover 801 in the energy-saving device 80;

[0427] and / or

[0428] The pot foot piece leg is welded to the energy-saving cover tray 802 in the energy-saving device 80.

[0429] Further, in some possible implementation manners, there are multiple pot foot pieces, and the multiple pot foot pieces are circumferentially spaced apart on the energy-saving device 80. A channel is formed between two adjacent pot foot pieces 60 and the upper disk surface of the energy-saving device 80;

[0430] Among them, when the pot foot piece 60 supports the cooking pot, the channel can form an outer secondary air supply channel with the bottom of the cooking pot for supplying air to the burner flame holes.

[0431] Further, in some possible implementation manners, the burner body forms a flame hole channel 15, and the highest position of the energy-saving device 80 provided on the burner body is lower than the outlet position of the flame hole channel 15.

[0432] Further, in some possible implementation manners, the burner body includes an annular burner base 13, an annular burner cover 12 and an annular fire cap 11. A connected gas mixing cavity 14 and a flame hole channel 15 are configured between the burner base 13, the burner cover 12 and the fire cap 11;

[0433] The inclined part annular surface of the burner base 13 and the inclined part annular surface of the burner cover 12 are joined together to form the inclined outer annular surface 77 of the burner body of the burner body. The inclined part annular surface of the energy-saving cover tray 802 is fitted with the inclined part annular surface of the burner base 13, and the inclined part annular surface of the energy-saving cover 801 is fitted with the inclined part annular surface of the burner cover 12;

[0434] The burner base 13 further includes a vertical toroidal surface formed at the bottom of the toroidal surface of the inclined portion of the burner base and extending downward, and the vertical toroidal surface of the burner base is fitted with the vertical toroidal surface of the energy-saving cover tray.

[0435] Furthermore, in some possible embodiments, the energy-saving cover tray 802 and the burner base 13 are fixed together by a locking member 79, and the energy-saving cover 801 is welded to the energy-saving cover tray 802 as a separate component;

[0436] Or

[0437] The energy-saving cover tray 802 and the burner base 13 are fixed together by a locking member 79, and the energy-saving cover 801 is welded to the energy-saving cover tray 802 as a cover structure integrated with the burner base 13.

[0438] It should be noted that this specification elaborates on multiple embodiments of the present invention, a total of seven. These embodiments demonstrate the diversity and practicality of the present invention from different perspectives. Among them, the technical solutions involved in Embodiments 1 to 5 are independent of each other and highly compatible, and can be arbitrarily combined according to actual application requirements to achieve more optimized usage effects and function expansion.

[0439] However, it should be particularly pointed out that the energy-saving plate solution in Embodiment 6 and the energy-saving cover solution in Embodiment 7 are parallel independent technical solutions, and there is a certain exclusivity between them in terms of structure and function, and they cannot be applied to the same product or system simultaneously. In other words, when the energy-saving plate solution of Embodiment 6 is combined with one or more of Embodiments 1 to 5, the energy-saving cover solution of Embodiment 7 cannot be adopted simultaneously, and vice versa.

[0440] In summary, Embodiments 1 to 5 of the present invention can be freely combined, while Embodiments 6 and 7 are mutually exclusive independent solutions. Those skilled in the art can flexibly select and apply the technical solutions in the above embodiments according to specific application scenarios and target requirements to fully exert the technical advantages and innovation value of the present invention.

[0441] It should be noted that when the solutions in Embodiments 1 to 5 are combined together, the obtained stove burner can achieve a thermal load of 5.2 kW, a CO concentration in dry flue gas ≤ 0.042%, and a thermal efficiency of 68.4%. And the "Household Gas Cookers" GB16410-2020 stipulates that the thermal efficiency of an embedded gas cooker ≥ 55%; the CO concentration in dry flue gas ≤ 0.05%. The "Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Household Gas Cookers" GB30720-2014 stipulates that the first-level energy efficiency of an embedded gas cooker is 63%.

[0442] It should be further noted that when the solutions in Embodiments 1 - 5 are combined together and the energy-saving disc solution in Embodiment 6 is added, the obtained stove burner can achieve a thermal load of 5.2 kW, the CO concentration in the dry flue gas is ≤0.0075%, and the thermal efficiency is 79.2%, further improving the performance indicators of the burner.

[0443] It should be further noted that when the solutions in Embodiments 1 - 5 are combined together and the energy-saving cover solution in Embodiment 7 is added, the burner can achieve a thermal load of 5.2 kW, the CO concentration in the dry flue gas is ≤0.0273%, and the thermal efficiency is 70.5%, further improving the performance indicators of the burner.

[0444] Generally speaking, the energy-saving device in this embodiment includes an annular energy-saving cover, and the energy-saving cover is provided with pot leg piece perforations for passing through pot leg pieces; when the pot leg piece supports are inserted into the pot leg piece perforations on the energy-saving cover, the pot leg piece heads are located above the energy-saving cover. It reduces the downward transfer and diffusion of heat from the pot leg piece heads, enables more heat to radiate upward to the bottom of the cooking utensil above the pot leg piece heads, and improves the thermal efficiency of the burner.

[0445] Furthermore, the energy-saving device further includes an annular energy-saving cover tray arranged below the energy-saving cover; the energy-saving cover and the energy-saving cover tray are arranged at an interval up and down and enclose a heat insulation cavity, and the energy-saving cover tray and the energy-saving cover are correspondingly provided with pot leg piece perforations for passing through pot leg pieces. When the pot leg pieces are passed through the pot leg piece perforations, the pot leg piece supports pass through the heat insulation cavity. Through the formed closed heat insulation cavity, it reduces the downward conduction and diffusion of heat of the energy-saving cover closest to the flame, enables more heat to radiate upward to the cooking utensil, and further improves the thermal efficiency of the burner.

[0446] Furthermore, the inner ring side of the energy-saving cover tray and the inner ring side of the energy-saving cover are fixedly matched together; and / or the outer ring side of the energy-saving cover tray and the outer ring side of the energy-saving cover are fixedly matched together. It can enhance the overall structural stability of the energy-saving device and ensure the stability and heat insulation effect of the heat insulation cavity.

[0447] Furthermore, the burner body includes a burner body inclined outer ring surface extending obliquely downward from the inside to the outside; the energy-saving device includes an energy-saving device inclined inner ring surface extending obliquely downward from the inside to the outside for cooperating with the burner body inclined outer ring surface. It can achieve a good cooperation between the energy-saving device and the burner body and optimize the overall structure and performance of the burner.

[0448] Furthermore, the pot leg piece supports are welded to the energy-saving cover in the energy-saving device; and / or the pot leg piece supports are welded to the energy-saving cover tray in the energy-saving device, which can ensure the stable connection between the pot leg pieces and the energy-saving device and further optimize the thermal efficiency.

[0449] Further, there are multiple pot feet, and the multiple pot feet are circumferentially spaced apart on the energy-saving device. A channel is formed between two adjacent pot feet and the upper disk surface of the energy-saving device; when the pot feet support the cookware, the channel can form an outer secondary air supply channel with the bottom of the cookware, which is used to supply air to the burner fire holes. This design can supply air to the burner fire holes, optimize the combustion conditions, and improve the combustion efficiency and thermal efficiency.

[0450] In summary, through the above series of structural optimizations and improvements, the combustion efficiency, thermal efficiency, and environmental performance of the stove burner have been significantly improved, which can meet the user's needs for high-efficiency and energy-saving gas stoves, while reducing energy consumption and pollutant emissions, and having good economic and social benefits.

[0451] Embodiment 8

[0452] Embodiment 8 of the present application provides a gas stove burner, as Figure 8a - Figure 8l shown. The gas stove burner in this embodiment mainly consists of the following several module parts. After these modules are combined with each other, they can form a gas stove burner with a better combustion effect. Specifically, the module distribution and specific composition of the burner are as follows:

[0453] I. Main burner module

[0454] The main burner module includes a large-fire ejector tube 10 and a large-fire burner module;

[0455] Among them, the large-fire burner module includes an annular large-fire burner cap 11, an annular large-fire burner cover 12, and a disk-shaped large-fire burner base 13; a connected large-fire gas mixing chamber 14 and a large-fire fire hole channel 15 are formed between the large-fire burner base 13, the large-fire burner cover 12, and the large-fire burner cap 11. The large-fire ejector tube 10 is formed at the bottom position of the large-fire burner base 13, and the large-fire ejector tube 10 can inject a gas-air mixture into the large-fire gas mixing chamber 14 along the tangential direction of the large-fire gas mixing chamber 14;

[0456] One end of the large-fire burner cover 12 away from the large-fire burner base 13 and one end of the large-fire burner cap 11 away from the large-fire burner base 13 are fitted together to form a uniform and circumferentially connected annular gap, and this annular gap serves as the large-fire fire hole channel 15 of the large-fire burner module;

[0457] Further, the large-fire flame hole passage 15 has opposite upper and lower openings in its flame outlet direction, where the lower opening serves as the inlet end of the gas-air mixture. Its opening faces downward and communicates with the large-fire gas mixing chamber 14. Its upper opening serves as the outlet end of the gas-air mixture and forms a complete circle of large-fire flame holes with the opening facing upward. The gas-air mixture in the large-fire gas mixing chamber 14 enters from the lower opening of the large-fire flame hole passage 15 and is discharged from the large-fire flame holes at the upper opening;

[0458] Further, one end of the large-fire burner cover 12 close to the large-fire burner base 13 is in sealing cooperation with the outer ring step surface of the large-fire burner base 13 {preferably riveted}, and one end of the large-fire burner cap 11 close to the large-fire burner base 13 is in sealing cooperation with the inner ring of the large-fire burner base 13;

[0459] Further, the large-fire burner cover 12 is higher on the inside and lower on the outside. At the high point position of the large-fire burner cover 12, there is a first bent edge that bends downward, and at the high point position of the large-fire burner cap 11, there is a second bent edge that bends outward. Between the first bent edge and the second bent edge, there is defined a large-fire flame hole passage 15 that bends outward.

[0460] II. Sub-burner module

[0461] The sub-burner module includes a small-fire ejector tube 20 and a small-fire burner module;

[0462] Among them, the small-fire burner module includes an annular small-fire burner cap 21, an annular small-fire burner cover 22, and a disc-shaped small-fire burner base 23. An interconnected small-fire gas mixing chamber 24 and a small-fire flame hole passage 25 are formed by enclosing the annular small-fire burner cap 21, the annular small-fire burner cover 22, and the disc-shaped small-fire burner base 23; There is a gap between the sub-burner module located inside and the main burner module located outside. This gap serves as the middle secondary air supply passage 26 of the burner. The middle secondary air supply passage 26 is used to supply air to the flame inside the large-fire flame hole passage 15 and the middle secondary air supply passage 26 is used to supply air to the flame outside the small-fire flame hole passage 25, so that the gas combustion of the main burner module and the sub-burner module is more sufficient;

[0463] Further, the small-fire burner base 23 and the large-fire burner base 13 are hermetically closed together. The parting joint surface is the center line plane of the ejector tube {the large-fire ejector tube 10 and the small-fire ejector tube 20}, and is fastened with screws. The small-fire burner cover 22 is riveted on the large-fire burner base 13, and the small-fire burner cap 21 is riveted on the small-fire burner base 23;

[0464] Further, the small burner base 23 and the small burner cover 22 form a uniformly distributed first small fire hole channel 251. The first small fire hole channel 251 is connected to the small gas mixing chamber 24. The small fire cover 21 and the small burner cover 22 form a uniformly distributed second small fire hole channel 252. The second small fire hole channel 252 and the first small fire hole channel 251 are connected to form the small fire hole channel 25. The hollow part of the small fire cover 21 is the inner secondary air supply channel 27, and the inner secondary air supply channel 27 is used to supply air to the flame inside the small fire hole channel 25.

[0465] It should be noted that in this embodiment, the cross-sectional area of the second small fire hole channel 252 is set to be larger than that of the first small fire hole channel 251, which can prevent the problem of flame detachment.

[0466] Furthermore, it should be noted that the fire outlet area and heat load of the small fire hole channel 25 are controlled by the first small fire hole channel 251. Since the small burner base 23 has a machined surface and the gap width dimension is relatively easier to control, the size of the first small fire control channel 251 formed by the small burner base 23 and the small burner cover 22 is easier to control, so it is easier to control the fire outlet area and heat load of the small fire hole channel 25 to meet the fire outlet requirements.

[0467] Furthermore, it should be noted that the second small fire hole channel 252 mainly controls the flame direction, that is, the inclination angle, and the dimensional accuracy range of its gap width can be relaxed. This reduces the process difficulty and improves the ring seam accuracy. Therefore, the gap between the small fire cover 21 and the small burner cover 22 can meet the dimensional requirements of the second small fire hole channel 252.

[0468] III. First gas distribution module

[0469] The first gas distribution module in this embodiment includes an annular gas distribution member 30 disposed in the large gas mixing chamber 14. A plurality of gas distribution grooves 31 are provided along the circumferential direction of the annular gas distribution member 30;

[0470] The gas distribution grooves 31 are located below the first bent edge of the large burner cover 12. The gas distribution grooves 31 are connected to the large gas mixing chamber 14 and the large fire hole channel 15. Preferably, the gas distribution grooves 31 are strip-shaped grooves extending vertically. The gas in the large gas mixing chamber 14 is separated by the plurality of gas distribution grooves 31 on the annular gas distribution member 30 and then discharged to the large fire hole channel 15, so that the gas-air mixture tangentially entering the large gas mixing chamber 14 can be divided into multiple strands and discharged into the large fire hole channel 15 along the vertical direction, thereby enhancing the injection capacity, making the gas combustion fire type (annular thin fire) more regular, and reducing the smoke content;

[0471] Furthermore, there is a certain axial gap between the lower end of the first bent edge of the large fire burner cover 12 and the upper end of the gas distribution groove 31, that is, the lower end of the first bent edge of the large fire burner cover 12 and the upper end of the gas distribution groove 31 are spaced apart. This can further enhance the air induction ability of the large fire induction pipe 10, thereby further reducing the flue gas content of the burner.

[0472] IV. Gas Distribution Module II

[0473] The gas distribution module II in this embodiment includes a C-shaped gas distribution member 40 arranged in the large fire gas mixing chamber 14 {it should be noted that the C shape mentioned in this embodiment does not require a complete C shape in the strict sense, as long as it generally presents a C shape, that is, the gas distribution plate in this embodiment can be understood as an annular plate member with a notch in the circumferential direction}. The gas distribution plate 40 divides the large fire gas mixing chamber 14 into an upper large fire gas mixing chamber and a lower large fire gas mixing chamber in the up and down directions. The C-shaped gas distribution member 40 has a support leg 41, and there is a slot corresponding to the support leg 41 at the bottom of the large fire gas mixing chamber 14; the vacant part of the C-shaped gas distribution member 40 corresponds to the outlet position of the large fire induction pipe 10 communicating with the large fire gas mixing chamber 14, so that the gas in the large fire gas mixing chamber 14 is distributed more evenly, and the gas is discharged for combustion, which can reduce the flue gas content. It should be noted that the reason why the vacant part of the C-shaped gas distribution member 40 corresponds to the outlet position of the large fire induction pipe 10 communicating with the large fire gas mixing chamber 14 in this application embodiment is to avoid the large blockage of the gas-air mixture discharged from the large fire induction pipe 10 by the C-shaped gas distribution member 40, so as to make the gas-air mixture in the large fire gas mixing chamber 14 mix more evenly while ensuring the air intake volume of the large fire gas mixing chamber 14.

[0474] Furthermore, in this embodiment, the height of the C-shaped gas distribution member 40 is set to be lower than the height of the top end of the gas distribution groove 31, so that the gas-air mixture in the upper large fire gas mixing chamber and the gas-air mixture in the lower large fire gas mixing chamber can both horizontally enter the strip-shaped gas distribution groove 31 and be discharged into the large fire hole channel 15 along the vertical direction. Preferably, in this embodiment, the C-shaped gas distribution member 40 is arranged at the middle position of the height of the gas distribution groove 31, so that the gas-air mixture in the upper large fire gas mixing chamber and the gas-air mixture in the lower large fire gas mixing chamber are more evenly distributed.

[0475] Furthermore, there is a certain circumferential gap between the inner circle edge of the C-shaped gas distribution member 40 and the outer circle edge of the gas distribution groove 31. That is, the C-shaped gas distribution member 40 and the gas distribution groove 31 are spaced apart in the radial direction of the burner. This can enhance the air induction ability of the large fire induction pipe 10 and reduce the flue gas content.

[0476] V. Gas Distribution Module III

[0477] The gas distribution module three in this embodiment includes a flame gas distribution plate 50 arranged in the large-fire flame hole channel 15. The large-fire flame hole channel 15 includes a large-fire flame hole channel one 151 that extends vertically and is communicated with the large-fire gas mixing cavity 14, and a large-fire flame hole channel two 152 that is communicated with the large-fire flame hole channel one 151 and extends obliquely outward. Preferably, the flame gas distribution plate 50 is arranged in the large-fire flame hole channel two 152;

[0478] A plurality of pot leg piece slots 131 are provided on the large-fire burner base 13. Preferably, there are generally four pot leg piece slots 131, which are evenly arranged in the circumferential direction of the large-fire burner base 13. The number of the flame gas distribution plates 50 corresponds to the number of the pot leg piece slots 131. The flame gas distribution plate 50 is of an arched structure and is welded to the large-fire burner cover 12 of the large-fire flame hole channel two 152, with a small hole {serving as an ignition channel 51} left in the middle. The intake end of the ignition channel 51 is communicated with the large-fire flame hole channel one 151. The large-fire burner cap 11 is placed on the upper arched surface of the flame gas distribution plate 50 {the height of the flame gas distribution plate 50 is equal to the gap width of the large-fire flame hole channel 15}. The pot leg piece 60 is inserted into the pot leg piece slot 131.

[0479] Multiple flame gas distribution plates 50 divide the flame in the large-fire flame hole channel two 152 into multiple petals, while interrupting the flame without affecting ignition {since small holes serving as ignition holes 51 are provided on the flame gas distribution plate 50, the multiple separated flames can be introduced together again outside the large-fire flame hole channel 15}. At the same time, since the flame gas distribution plate 40 is arranged corresponding to the pot leg piece 60 in the radial direction, it can also prevent the flame from interfering with the pot leg piece 60, thereby greatly reducing the temperature of the flue gas and the pot leg piece 60, reducing heat loss, and improving the thermal efficiency and the durability of the pot leg piece 60.

[0480] Corresponding flame gas distribution plate positioning grooves 121 are opened on the large-fire burner cover 12. The flame gas distribution plate 50 is arranged in the flame gas distribution plate positioning grooves 121 and is preferably welded and fixed to the large-fire burner cover 12 together.

[0481] It should be noted that the gap width of the large-fire flame hole channel two 152 is a key dimension. In this application, by arranging the flame gas distribution plates 50 with the same height in the large-fire flame hole channel 15, the manufacturing process can be simplified, and the dimensional accuracy of the large-fire flame hole channel 15 can be controlled very accurately. Generally speaking, in this application, by arranging a plurality of flame gas distribution plates 50 with the same height, the size of the large-fire flame hole channel two 152 formed by the large-fire burner cover 12 and the large-fire burner cap 11 can be accurately controlled.

[0482] It should also be noted that the applicant found that reducing the height of the burner flame (i.e., the height from the top of the pot leg piece to the burner cap) can improve the thermal efficiency, but it will increase the content of flue gas emissions. There is a certain inverse relationship between the flue gas content and the thermal efficiency. Through the above-mentioned multiple measures, the content of flue gas emissions during the combustion of the burner is greatly reduced, far less than the requirements of the national standard. The height of the burner flame can be reduced, and the content of flue gas emissions can be appropriately increased and controlled within the standard range, while achieving the improvement of the thermal efficiency of the burner.

[0483] Specifically, in the embodiment of the present application, through the above-mentioned improvement of the burner, a thermal load of 5.2 kW can be achieved, the CO concentration in the dry flue gas is ≤ 0.042%, and the thermal efficiency is 68.4%. The "Household Gas Cookers" GB16410-2020 stipulates that the thermal efficiency of an embedded gas cooker should be ≥ 55%; the CO concentration in the dry flue gas is ≤ 0.05%. The "Minimum Allowable Values of Energy Efficiency and Energy Efficiency Grades for Household Gas Cookers" GB30720-2014 stipulates that the first-level energy efficiency of an embedded gas cooker is 63%.

[0484] It can be seen that through the above-mentioned improvement of the burner in the embodiment of the present application, the performance indicators of the burner far exceed the performance indicators stipulated by the state.

[0485] VI. Energy-saving module

[0486] Furthermore, in this embodiment, in order to further improve the performance indicators of the burner, an energy-saving module is correspondingly provided. The energy-saving module includes an energy-saving plate 70 arranged around one side of the burner, and the energy-saving plate 70 is provided with a pot leg piece perforation for the pot leg piece to pass through.

[0487] Specifically, the energy-saving plate in the embodiment of the present application includes a double-layer energy-saving plate or a three-layer energy-saving plate. The double-layer energy-saving plate includes a radiation plate 71 that radiates heat to the cooking utensil and a tray 72. The three-layer energy-saving plate further includes a reflection plate 73, and the reflection plate 73 is located between the radiation plate 71 and the tray 72. The radiation plate 71 does not contact the outer sides of the reflection plate 73 and the tray 72, reducing the downward conduction and diffusion of the heat of the radiation plate 71 closest to the flame, and more heat is radiated to the cooking utensil or pot above, improving the thermal efficiency. The radiation plate 71, the reflection plate 73, and the tray 72 are all provided with pot leg piece perforations, and the pot leg piece 60 sequentially passes through the pot leg piece perforations of the radiation plate 71, the reflection plate 73, and the tray 72. Among them, the pot leg piece 60 is welded to the radiation plate 71. The tray 72 is snap-connected to the pot leg piece 60. A spring piece 74 is provided at the position of the pot leg piece slot of the tray 72, and a corresponding notch 75 is provided on the pot leg piece 60. When the pot leg piece 60 is inserted into the tray 72, its lower end first pushes open the spring piece 74, and when it continues to be inserted to its notch 75, the spring piece 74 slides into the notch 75, fastening and fixing the pot leg piece 60 and the tray 72. The lower end of the pot leg piece 60 is inserted into the pot leg piece slot 131 on the base 13 of the large fire burner.

[0488] Through experimental verification, in the embodiments of the present application, a burner provided with three layers of energy-saving plates can enable the burner to achieve a thermal load of 5.2 kW, a CO concentration in dry flue gas ≤ 0.0075%, and a thermal efficiency of 79.2%, further improving the performance indicators of the burner.

[0489] Of course, in some possible implementation manners, the energy-saving plate 70 disposed on one side of the periphery of the burner can also be replaced with an energy-saving cover 80, and the energy-saving cover 80 is also provided with a pot leg piece through-hole for the pot leg piece 60 to pass through.

[0490] Specifically, the energy-saving cover 80 in this embodiment includes an energy-saving cover lid 801 and an energy-saving cover tray 802, where;

[0491] The energy-saving cover lid 801 has a flat ring, which is placed on the outer edge of the large-fire burner lid 12 or the outer edge of the large-fire burner base 13. The overall height of the energy-saving cover lid 801 is lower than the fire outlet position of the large-fire flame hole channel 15. The energy-saving cover lid 801 is provided with a pot leg piece through-hole, and the pot leg piece 60 passes through the pot leg piece through-hole and is inserted into the pot leg piece slot 131 on the large-fire burner base 13.

[0492] The energy-saving cover tray 802 is fixedly welded to the energy-saving cover lid 801 to form a heat-insulating cavity 81 that can insulate heat. The energy-saving cover tray 802 is also provided with a corresponding pot leg piece through-hole for the pot leg piece 60 to pass through. The energy-saving cover tray 802 is fixed to the large-fire burner base 13 by screws 76, so that the entire energy-saving cover 80 is fixed to the large-fire burner base 13 and cannot be easily removed. Through the above-set energy-saving cover 80, the downward conduction and diffusion of heat during the use of the burner can be reduced, and at the same time, the excess secondary air can be reduced, improving the thermal efficiency of the burner.

[0493] Through experimental verification, in the embodiments of the present application, by setting a burner with an energy-saving cover, the burner can achieve a thermal load of 5.2 kW, a CO concentration in dry flue gas ≤ 0.0273%, and a thermal efficiency of 70.5%, further improving the performance indicators of the burner.

[0494] It should be noted that the energy-saving cover lid 801 in this embodiment can also be that the outer inclined surface of the large-fire burner base 13 is changed to a flat surface, that is, the energy-saving cover itself is a part of the large-fire burner base 13.

[0495] In summary, in the embodiments of the present application, by adding corresponding gas distribution modules {ring-shaped gas distribution member 30, C-shaped gas distribution member 40, and flame gas distribution piece 50} and / or energy-saving modules {energy-saving cover 70 or energy-saving cover lid 80} in the burner, the performance indicators of the burner can be effectively improved.

[0496] It should be noted that since Embodiments 1 - 7 respectively give descriptions of specific embodiments from each component, Embodiment 8 of the present application aims more to provide an overall burner having these components. Based on this, the improvement details related to the specific components themselves are not elaborated too much. Those skilled in the art can understand that Embodiment 8 can adopt the improvements of Embodiments 1 - 7 or combine different improvements together.

[0497] It should also be noted that the burner improvements provided by the present application are preferably used for stove burners. Among them, the improvement schemes related to energy conservation in Embodiments 6 and 7 can be applied to different types of stove burners, while the improvement schemes related to gas distribution in Embodiments 1 - 5 are more preferably suitable for ring burners having a ring-shaped flame hole channel and / or ring-shaped flame holes.

[0498] In the above embodiments of the present application, the descriptions of each embodiment have their own focuses. For the parts not elaborated in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The steps shown in the relevant flowcharts can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the step order described in the previous embodiments is only an example, and a reasonable adjustment of the step order based on the content of the embodiments of the present application is also within the protection scope of the embodiments of the present application.

[0499] The serial numbers of the embodiments of the present application or the order of introduction are only for description and do not represent the superiority or inferiority of the embodiments.

[0500] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0501] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A burner main body, characterized in that, The burner body (20) is provided with: An annular gas mixing chamber (21) and an annular flame hole passage (22) communicating with the gas mixing chamber (21). The gas mixing chamber (21) has a mixing chamber air inlet (211) capable of introducing air tangentially along the tangential direction of the gas mixing chamber (21); An annular air distribution member (30) disposed within the gas mixing chamber (21); Wherein the annular air distribution member (30) is formed with a plurality of air distribution grooves (31) in its circumferential direction. Each of the plurality of air distribution grooves (31) can communicate the gas mixing chamber (21) and the flame hole passage (22). The plurality of air distribution grooves (31) are used to divide the gas-air mixture in the gas mixing chamber (21) into multiple strands and then guide them upward into the flame hole passage (22).

2. The burner body according to claim 1, wherein: The burner body (20) includes a burner base (20a), a burner cover (20b), and a burner head (20c), wherein: The burner cover (20b) is disposed around the outer circumferential side of the burner base (20a) and forms an annular gas mixing chamber (21) with the burner base (20a); The burner head (20c) is disposed around the inner circumferential side of the burner base (20a) and forms a circumferentially continuous annular gap with the end of the burner cover (20b). The annular gap forms a flame hole passage (22) communicating with the gas mixing chamber (21); The gas mixing chamber (21) communicates with the flame hole passage (22) on one side close to the flame hole passage (22). The annular air distribution member (30) is disposed at the communicating position between the gas mixing chamber (21) and the flame hole passage (22).

3. The burner body according to claim 2, characterized in that, The annular air distribution member (30) is integrally formed by the burner base (20a).

4. The burner body according to claim 2, characterized in that, The burner base (20a) is provided with a ring rib (20a1) radially inside the annular air distribution member (30). The ring rib (20a1) protrudes upward into the flame hole passage (22); The outer peripheral wall surface of the ring rib (20a1) is engaged with the inner peripheral wall surface of the annular air distribution member (30); The inner peripheral wall surface of the ring rib (20a1) is engaged with the outer peripheral wall surface of the burner head (20c).

5. The burner body according to claim 4, wherein: The end of the burner cover (20b) facing away from the inner circle of the burner base forms an inwardly bent edge (20b1). The fire hole passage (22) is formed between the inwardly bent edge (20b1) of the burner cover (20b) and the burner head (20c); There is a gap between the free end of the inwardly bent edge (20b1) of the burner cover (20b) and the upper end surface of the annular air distribution member (30). The gap forms a communication port (40) between the gas mixing (21) chamber and the flame hole passage (22); The inwardly bent edge (20b1) of the burner cover (20b) includes a burner cover diagonal part (20b11) and a burner cover vertical part (20b12); The burner head (20c) includes a burner head diagonal part (20c11) and a burner head vertical part (20c12); The burner cover diagonal part (20b11) and the burner head diagonal part (20c11) cooperate to form the diagonal part of the flame hole passage (22); The burner cover vertical part (20b12) and the burner head vertical part (20c12) cooperate to form the vertical part of the flame hole passage (22); The annular rib (20a1) protrudes upward into the vertical part of the flame hole passage (22), and the inner peripheral wall surface of the annular rib (20a1) cooperates with the outer peripheral wall surface of the vertical part of the burner head (20c); The inlet flow area of the vertical part of the flame hole passage (22) is smaller than the outlet flow area of the diagonal part of the flame hole passage (22).

6. The burner body according to any one of claims 1-5, characterized in that The annular gas distributing member (30) includes: A ring body (33), on the upper surface of which a plurality of upwardly protruding gas distributing teeth (32) are circumferentially and spaced apart. The gap between every two adjacent gas distributing teeth (32) forms a gas distributing groove (31) communicating the gas mixing chamber (21) with the flame hole passage (22); wherein; The gas distributing teeth (32) are straight teeth, and the central plane of each straight tooth passes through the center line of the ring body (33); Or The gas distributing teeth (32) are helical teeth, and the central plane of each helical tooth is parallel to the center line of the ring body (33).

7. The burner body according to claim 6, characterized in that, The height of the radial outer side of the gas distributing teeth (32) is higher than the height of its radial inner side, and the upper end surface of the gas distributing teeth (32) is a stepped surface or a sloping surface.

8. The burner body according to claim 7, characterized in that The upper end surface of the gas distributing teeth (32) includes a first horizontal surface (321) extending in the horizontal direction, a first vertical surface (323) extending downward along the height direction of the gas distributing teeth (32) from the inner end side of the first horizontal surface (321), and a second horizontal surface (322) extending horizontally from the lower end side of the first vertical surface (323) to the inner side of the ring body (33); Wherein the first horizontal surface (321) constitutes the top surface of the gas distributing teeth (32).

9. The burner body according to claim 8, characterized in that The ratio of the axial height of the gas distributing teeth (32) to the height of the first vertical surface (323) is between 2.5 and 3; The ratio of the radial width of the gas distributing teeth (32) to the radial length of the first horizontal surface (321) is between 2 and 2.5, and the ratio of the radial width of the gas distributing teeth (32) to the radial length of the second horizontal surface (322) is between 2 and 2.5; The ratio of the perimeter of the annular body (33) to the circumferential width of the gas-dividing teeth (23) is between 130 and 150, and the ratio of the perimeter of the annular body (33) to the circumferential width of the gas-dividing groove (31) is between 130 and 150.

10. The burner body according to any one of claims 1-5, characterized in that the bottom surface of the gas-dividing groove (31) is inclined obliquely upward toward the radially inner side; and / or the cross-section of the gas-dividing groove (31) in the circumferential direction is an equal-width surface; and / or the flow area of the gas-dividing groove (31) gradually increases along the inflow and outflow direction of the air flow.

11. The burner body according to any one of claims 1-5, characterized in that the annular gas-dividing member (30) includes: an annular body (33), on the upper surface of which a plurality of upwardly protruding gas-dividing teeth (32) are circumferentially spaced, and the gap between every two adjacent gas-dividing teeth (32) forms a gas-dividing groove (31) communicating the gas mixing chamber with the flame hole passage.

12. A burner for a stove, characterized in that, There is provided a burner body according to any one of claims 1-11.

13. A burner for a stove, characterized in that: There are provided a large-fire burner body and a small-fire burner body, and the large-fire burner adopts the burner body according to any one of claims 1-11.

Images