Combustor and gas stove

Abstract

The utility model discloses a burner and a gas stove, and relates to the technical field of gas stoves, the burner comprises a burner base, an outer ring fire cover and an inner ring fire cover, the outer ring fire cover and the inner ring fire cover are installed on the burner base, an outer ring gas mixing chamber and an inner gas mixing chamber are arranged on the burner base, the outer ring gas mixing chamber is arranged on the periphery of the inner gas mixing chamber at intervals, and the inner ring gas mixing chamber is arranged on the periphery of the inner gas mixing chamber. An oxygen supplementing interval is formed between the outer-ring gas mixing chamber and the inner-ring gas mixing chamber, the outer-ring fire cover covers the outer-ring gas mixing chamber, and the inner-ring fire cover covers the inner-ring gas mixing chamber; the inner ring wall of the outer ring gas mixing chamber partially protrudes towards the outer ring wall to form a first oxygen supplementing channel with the upper end communicating with the oxygen supplementing interval, the lower end of the first oxygen supplementing channel communicates with the bottom space of the furnace end base, and the first oxygen supplementing channel is provided with an expansion protruding part extending towards the outer ring wall of the outer ring gas mixing chamber. According to the technical scheme provided by the utility model, the combustion uniformity of the gas stove can be improved, and the possibility of incomplete combustion is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, and particularly relates to a burner and a gas stove. Background Art

[0002] The gas stove is one of the commonly used cooking appliances in families and the catering industry. Traditional gas stoves usually consist of an outer ring burner cap and an inner ring burner cap, forming multiple burners for heating cookware. Therefore, the combustion efficiency and safety of the gas stove are key considerations. Traditional gas stoves are usually composed of an outer ring burner cap and an inner ring burner cap. This design can provide a stable flame, but there may be problems such as low combustion efficiency, fuel waste, and harmful gas emissions. Summary of the Utility Model

[0003] The main object of the utility model is to propose a burner and a gas stove, aiming to improve the combustion uniformity of the gas stove and reduce the possibility of incomplete combustion.

[0004] To achieve the above object, the burner proposed by the utility model includes:

[0005] A burner base, an outer ring burner cap and an inner ring burner cap installed on the burner base. An outer ring mixing chamber and an inner ring mixing chamber are provided on the burner base, and the outer ring mixing chamber is spaced apart from the outer periphery of the inner ring mixing chamber to form an oxygen supplement interval between the outer ring mixing chamber and the inner ring mixing chamber. The outer ring burner cap covers the outer ring mixing chamber, and the inner ring burner cap covers the inner ring mixing chamber;

[0006] A part of the inner ring wall of the outer ring mixing chamber bulges towards the outer ring wall to form a first oxygen supplement channel with the upper end communicating with the oxygen supplement interval. The lower end of the first oxygen supplement channel communicates with the bottom space of the burner base, and the first oxygen supplement channel has an expansion convex part extending towards the outer ring wall of the outer ring mixing chamber.

[0007] In one embodiment, one end of the expansion convex part away from the oxygen supplement interval laterally penetrates the outer ring wall of the outer ring mixing chamber.

[0008] In one embodiment, the inner side of the upper end of the first oxygen supplement channel has a first oxygen outlet communicating with the oxygen supplement interval, and a first water retaining edge is provided below the first oxygen outlet.

[0009] In one embodiment, an outer ring ejector pipe and an inner ring ejector pipe are further provided at the bottom of the burner base. The outer ring ejector pipe communicates with the outer ring mixing chamber, the inner ring ejector pipe communicates with the inner ring mixing chamber, and the first oxygen supplement channel is arranged between the outer ring ejector pipe and the inner ring ejector pipe.

[0010] In one embodiment, a second oxygen supply channel is further provided below the outer ring mixing chamber. The lower end of the second oxygen supply channel communicates with the bottom space of the burner base, and the inner upper end of the second oxygen supply channel penetrates the inner ring wall of the outer ring mixing chamber to communicate with the oxygen supply interval.

[0011] In one embodiment, the outer upper end of the second oxygen supply channel penetrates the outer ring wall of the outer ring mixing chamber.

[0012] In one embodiment, the inner upper end of the second oxygen supply channel has a second oxygen outlet communicating with the oxygen supply interval, and a second water retaining edge is provided below the second oxygen outlet.

[0013] In one embodiment, a third oxygen supply channel is further provided below the outer ring mixing chamber. The inner side of the third oxygen supply channel penetrates the inner ring wall of the outer ring mixing chamber to communicate with the oxygen supply interval, and the outer side of the third oxygen supply channel penetrates the outer ring wall of the outer ring mixing chamber.

[0014] In one embodiment, the bottom of the outer ring mixing chamber includes a first section and a second section connected in sequence. The first section is used for arranging the inner ring injection pipe, the first oxygen supply channel, and the outer ring injection pipe, and the second section is used for arranging the second oxygen supply channel and the third oxygen supply channel, and the second oxygen supply channel and the third oxygen supply channel are arranged alternately in sequence.

[0015] In one embodiment, there are a plurality of the first oxygen supply channels. The plurality of first oxygen supply channels are arranged along the circumferential direction of the outer ring mixing chamber, and one of the plurality of first oxygen supply channels is arranged between the outer ring injection pipe and the inner ring injection pipe.

[0016] The present utility model further provides a gas stove, including the burner as described above.

[0017] The technical solution of the present utility model is to provide an outer ring mixing chamber and an inner mixing chamber on the burner base, and the outer ring mixing chamber is arranged at intervals on the outer periphery of the inner mixing chamber to form an oxygen supplement interval between the outer ring mixing chamber and the inner mixing chamber. The outer ring burner cap is covered on the outer ring mixing chamber, and the inner ring burner cap is covered on the inner mixing chamber. For a burner with such a structure, it is easy to cause insufficient oxygen supply to the inner side of the outer ring mixing chamber and the inner mixing chamber, resulting in uneven combustion of the burner and incomplete combustion of the burner. Therefore, the inner ring wall of the outer ring mixing chamber bulges locally towards the outer ring part to form a first oxygen supplement channel with the upper end communicating with the oxygen supplement interval, and the lower end of the first oxygen supplement channel communicates with the bottom space of the burner base, so as to supplement oxygen into the oxygen supplement interval, increase the oxygen supply amount to the inner side of the outer ring mixing chamber and the inner mixing chamber, promote the combustion uniformity of the burner, reduce the incomplete combustion of the burner, and improve the cooking efficiency and cooking effect of the gas stove. And the first oxygen supplement channel has an expansion convex part extending towards the outer ring wall of the outer ring mixing chamber, so as to increase the oxygen supply amount of the first oxygen supplement channel, further promote the combustion uniformity of the burner, and reduce the incomplete combustion of the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic structural diagram of an embodiment of the burner provided by the present utility model from an angle;

[0020] Figure 2 For Figure 1 Another schematic structural diagram of the burner in ;

[0021] Figure 3 For Figure 1 Another schematic structural diagram of the burner in ;

[0022] Figure 4 It is a schematic structural diagram of the first angle of the burner base in another embodiment of the burner provided by the present utility model;

[0023] Figure 5 For Figure 4 The second angle schematic structural diagram of the burner base in ;

[0024] Figure 6 For Figure 4 The third angle schematic structural diagram of the burner base in ;

[0025] Figure 7 For Figure 4Schematic diagram of the fourth angle structure of the middle burner base;

[0026] Figure 8 is Figure 4 Schematic diagram of the fifth angle structure of the middle burner base;

[0027] Figure 9 is Figure 8 Cross-sectional view of the middle burner base along A-A;

[0028] Figure 10 is Figure 8 Cross-sectional view of the middle burner base along B-B.

[0029] Explanation of the reference numerals in the drawings:

[0030] 100, burner; 1, burner base; 11, outer ring mixing chamber; 12, inner mixing chamber; 121, first section; 122, second section; 13, oxygen supplement interval; 14, first oxygen supplement channel; 141, first oxygen inlet; 142, second oxygen inlet; 143, first oxygen outlet; 144, expansion convex part; 145, first water retaining edge; 15, second oxygen supplement channel; 151, third oxygen inlet; 152, fourth oxygen inlet; 153, second oxygen outlet; 154, second water retaining edge; 16, third oxygen supplement channel; 161, fifth oxygen inlet; 162, third oxygen outlet; 17, outer ring ejector tube; 18, inner ring ejector tube; 181, first ejector section; 182, second ejector section; 2, outer ring burner cap; 3, inner ring burner cap; 200, stove top; 300, gas ejector seat.

[0031] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if the embodiments of the present utility model involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their 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 at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] The present utility model provides a burner 100 for a gas stove.

[0036] Please refer to Figures 1 to 10 , in an embodiment of the present utility model, the burner 100 includes:

[0037] A burner base 1, an outer-ring burner cap 2 and an inner-ring burner cap 3 mounted on the burner base 1. An outer-ring gas mixing chamber 11 and an inner gas mixing chamber 12 are provided on the burner base 1, and the outer-ring gas mixing chamber 11 is spaced apart from the outer periphery of the inner gas mixing chamber 12 to form an oxygen supply interval 13 between the outer-ring gas mixing chamber 11 and the inner gas mixing chamber 12. The outer-ring burner cap 2 covers the outer-ring gas mixing chamber 11, and the inner-ring burner cap 3 covers the inner gas mixing chamber 12;

[0038] A part of the inner ring wall of the outer-ring gas mixing chamber 11 bulges outward toward the outer ring portion to form a first oxygen supply channel 14 with its upper end communicating with the oxygen supply interval 13. The lower end of the first oxygen supply channel 14 communicates with the bottom space of the burner base 1, and the first oxygen supply channel 14 has an expansion convex portion 144 extending toward the outer ring wall of the outer-ring gas mixing chamber 11.

[0039] Specifically, an outer-ring gas mixing chamber 11 and an inner gas mixing chamber 12 are provided on the burner base 1. The outer-ring gas mixing chamber 11 and the inner gas mixing chamber 12 are respectively communicated with corresponding gas channels, and the gas channels supply gas to the outer-ring gas mixing chamber 11 and the inner gas mixing chamber 12 respectively. The outer-ring gas mixing chamber 11 mixes the gas with the air entering its interior, and the inner gas mixing chamber 12 mixes the gas with the air entering its interior. The outer-ring burner cap 2 covers the outer-ring gas mixing chamber 11, and the inner-ring burner cap 3 covers the inner gas mixing chamber 12. During use, first, the inner-ring burner cap 3 is ignited, and then the combustion intensity of the mixed gas at the air outlet holes on the inner-ring burner cap 3 is further increased, so that the heat on the inner-ring burner cap 3 is transferred to the outer-ring burner cap 2, thereby igniting the outer-ring burner cap 2.

[0040] Since the burner base 1 is configured as a disc-shaped structure with a closed bottom, that is, neither the bottom nor the side of the oxygen supplement interval 13 formed between the outer ring gas mixing chamber 11 and the inner gas mixing chamber 12 communicates with the outside of the gas stove, it is easy to cause insufficient oxygen intake in the oxygen supplement interval 13, which in turn leads to insufficient oxygen intake in the inner side of the outer ring gas mixing chamber 11 and the inner gas mixing chamber 12, resulting in incomplete combustion of the burner 100, and further affecting the cooking efficiency and cooking effect of the gas stove.

[0041] In view of this, a first oxygen supplement channel 14 is provided on the burner base 1, and the first oxygen supplement channel 14 is usually provided at the bottom of the outer ring gas mixing chamber 1. A first oxygen inlet 141 communicating with the bottom space of the burner base 1 is provided at the lower end of the first oxygen supplement channel 14 to facilitate oxygen intake into the first oxygen supplement channel 14. A first oxygen outlet 143 is provided on one side of the upper end of the first oxygen supplement channel 14 facing the oxygen supplement interval 13, so that the oxygen supplement interval 13 communicates with the bottom space of the burner base 1 through the first oxygen supplement channel 14, thereby supplementing oxygen into the oxygen supplement interval 13, increasing the oxygen intake in the inner side of the outer ring gas mixing chamber 11 and the inner gas mixing chamber 12, reducing the incomplete combustion of the burner 100, and improving the cooking efficiency and cooking effect of the gas stove.

[0042] In this embodiment, the first oxygen supplement channel 14 is formed by a local bulge of the inner ring wall of the outer ring gas mixing chamber 11 towards the outer ring wall, so that a local depression of the inner ring wall of the first oxygen supplement channel 14 forms the first oxygen outlet 143, and the lower end opening of the first oxygen supplement channel 14 forms the first oxygen inlet 141, which facilitates the processing of the first oxygen supplement channel 14. And the first oxygen supplement channel 14 has an expansion convex part 144 extending towards the outer ring wall of the outer ring gas mixing chamber 11, so as to increase the cross-sectional area of the first oxygen inlet 141 and the first oxygen supplement channel 14 as a whole, thereby increasing the oxygen intake of the first oxygen supplement channel 14 and further reducing the incomplete combustion of the burner 100. And in order to further increase the oxygen intake of the first oxygen supplement channel 14, the part of the first oxygen supplement channel 14 close to the first oxygen outlet 143 extends along the circumferential direction of the outer ring gas mixing chamber 11, so as to increase the cross-sectional area of the first oxygen supplement channel 14, the first oxygen outlet 143, and the first oxygen inlet 141.

[0043] In the prior art, the oxygen supply channel is usually directly opened at the bottom of the outer ring mixing chamber 11, and the oxygen supply channel extends radially along the outer ring mixing chamber and penetrates the inner and outer ring walls of the outer ring mixing chamber, thereby connecting the external space and the oxygen supply interval. Therefore, sufficient space usually needs to be reserved at the bottom of the outer ring mixing chamber to set the oxygen supply channel. However, the burner base 1 is usually provided with an outer ring ejector pipe 17 (connected to the outer ring mixing chamber 11) and an inner ring ejector pipe 18 (connected to the inner mixing chamber 12). The outer ring ejector pipe 17 and the inner ring ejector pipe 18 are respectively used for installing the gas ejector seat 300 to supply gas to the outer ring mixing chamber 11 and the inner mixing chamber 12. However, the outer ring ejector pipe 17 and the inner ring ejector pipe 18 usually occupy a part of the space in the lower part of the outer ring mixing chamber 11 (the inner ring ejector pipe 18 usually includes a first ejecting section 181 extending horizontally and a second ejecting section 182 extending vertically. The second ejecting section 182 is used to connect the inner mixing chamber 12, and the first ejecting section 181 extends outward from the outer ring mixing chamber 11, and also occupies a part of the space in the lower part of the outer ring mixing chamber 11), resulting in that the installation positions of the outer ring ejector pipe 17 and the inner ring ejector pipe 18 (about 1 / 3 of the total length of the outer ring mixing chamber 11) are not suitable for setting the oxygen supply channel that penetrates the inner and outer ring walls of the outer ring mixing chamber radially. And the first oxygen supply channel 14 in this technical solution is mainly used to connect the lower space of the burner base 1 and the oxygen supply interval 13, and it is suitable for being set at the installation positions of the outer ring ejector pipe 17 and the inner ring ejector pipe 18 so that oxygen can also be supplied at this position.

[0044] In addition, in this embodiment, the first oxygen supply channel 14 is provided to bulge locally from the inner ring wall of the outer ring mixing chamber 11 towards the outer ring part, and its bulging size (that is, the width of the first oxygen supply channel 14 along the radial direction of the outer ring mixing chamber 11) can be adjusted. Thus, the size of the first oxygen supply channel 14 can also be adjusted to effectively utilize the gap between the outer ring ejector pipe 17 and the inner ring ejector pipe 18 for oxygen supply, so as to promote the combustion uniformity of the burner 100 and reduce the incomplete combustion of the burner 100.

[0045] And in order to further increase the oxygen supply, the first oxygen replenishing channel 14 has an expanded convex portion 144 extending towards the outer ring wall of the outer ring mixing chamber 11. The circumferential width of the expanded convex portion 144 is generally less than or equal to the circumferential width of the first oxygen replenishing channel 14 near the oxygen replenishing interval 13. For example, when the first oxygen replenishing channel 14 is arranged between the outer ring ejector pipe 17 and the inner ring ejector pipe 18, the circumferential width of the expanded convex portion 144 is less than the circumferential width of the first oxygen replenishing channel 14 near the oxygen replenishing interval 13. That is, along the radial direction of the outer ring mixing chamber 11, the cross-sectional area of the first oxygen replenishing channel 14 gradually decreases, and the shape of the expanded convex portion 144 can be set according to the gap between the outer ring ejector pipe 17 and the inner ring ejector pipe 18, so as to increase the oxygen intake amount without affecting the connection between the outer ring ejector pipe 17 and the outer ring mixing chamber 11. However, when the first oxygen replenishing channel 14 is not arranged between the outer ring ejector pipe 17 and the inner ring ejector pipe 18, the circumferential width of the expanded convex portion 144 can be equal to the circumferential width of the first oxygen replenishing channel 14 near the oxygen replenishing interval 13, thereby further increasing the oxygen intake amount of the oxygen replenishing interval 13.

[0046] In addition, since some electrical appliances such as solenoid valves are often arranged on the burner base 1, certain heat will be generated. Because the first oxygen replenishing channel 14 communicates with the bottom space of the burner base 1, that is, communicates with the bottom space of the cooking range 200, it helps to promote the air flow in the bottom space of the burner base 1, thereby dissipating heat from the bottom space of the burner base 1.

[0047] Please refer to Figure 7 and Figure 8 , in the embodiment of the present utility model, one end of the expanded convex portion 144 away from the oxygen replenishing interval 13 laterally penetrates the outer ring wall of the outer ring mixing chamber 11. That is, a second oxygen inlet 142 is provided on the outer ring wall of the outer ring mixing chamber 11, and the second oxygen inlet 142 communicates with one end of the expanded convex portion 144 away from the oxygen replenishing interval 13. That is, in addition to communicating with the bottom space of the burner base 1, the first oxygen replenishing channel 14 also communicates with the outer peripheral space of the outer ring mixing chamber 11, so as to supply oxygen from two directions, further promoting the combustion uniformity of the burner 100 and reducing the incomplete combustion of the burner 100.

[0048] Please refer to Figures 3 to 6 , Figure 9, in an embodiment of the present utility model, a second oxygen supply channel 15 is further provided below the outer ring mixing chamber 11. The lower end of the second oxygen supply channel 15 communicates with the bottom space of the burner base 1, and the inner upper end of the second oxygen supply channel 15 penetrates through the inner ring wall of the outer ring mixing chamber 11 to communicate with the oxygen supply interval 13. Specifically, a third oxygen inlet 151 is provided at the lower end of the second oxygen supply channel 15, and the third oxygen inlet 151 communicates with the bottom space of the burner base 1. A second oxygen outlet 153 is provided on the side of the upper end of the second oxygen supply channel 15 facing the oxygen supply interval 13, so that the oxygen supply interval 13 communicates with the bottom space of the burner base 1. On the one hand, oxygen is further supplied into the oxygen supply interval 13, further increasing the oxygen intake in the inner side of the outer ring mixing chamber 11 and the inner mixing chamber 12, promoting the combustion uniformity of the burner 100, and reducing the incomplete combustion of the burner 100. On the other hand, it can also further promote the air flow in the bottom space of the burner base 1, thereby dissipating heat from the bottom space of the burner base 1. And the second oxygen supply channel 15 can extend integrally towards the outer ring wall of the outer ring mixing chamber 11, thereby further expanding the oxygen intake of the second oxygen supply channel 15, or it can extend locally towards the outer ring wall of the outer ring mixing chamber 11, or only be arranged close to the inner ring wall of the outer ring mixing chamber 11.

[0049] Furthermore, the outer upper end of the second oxygen supply channel 15 penetrates through the outer ring wall of the outer ring mixing chamber 11. That is, a fourth oxygen inlet 152 is provided on the outer ring wall of the outer ring mixing chamber 11, and the fourth oxygen inlet 152 communicates with the side of the second oxygen supply channel 15 far from the oxygen supply interval 13. That is, in addition to communicating with the bottom space of the burner base 1, the second oxygen supply channel 15 also communicates with the peripheral space of the outer ring mixing chamber 11, so as to supply oxygen from two directions, further promoting the combustion uniformity of the burner 100 and reducing the incomplete combustion of the burner 100. Among them, the shapes of the first oxygen supply channel 14 and the second oxygen supply channel 15 can be the same or different.

[0050] To reduce the entry of water or impurity dust, etc. into the bottom space of the cooking range 200 during the cooking process, in an embodiment of the present utility model, referring to 4 and Figure 9 , the inner upper end of the first oxygen supply channel 14 has a first oxygen outlet 143 communicating with the oxygen supply interval 13, and a first water blocking edge 145 is provided below the first oxygen outlet 143. Specifically, the first water blocking edge 145 is provided at the first oxygen outlet 143, so as to increase the opening height of the first oxygen outlet 143, making the height of the first oxygen outlet 143 higher than the bottom of the oxygen supply interval 13, thereby blocking the entry of water or impurity dust, etc. into the bottom space of the cooking range 200 during the cooking process. In other embodiments, a filter screen or other structures can also be provided at the first oxygen outlet 143 to reduce the entry of water or impurity dust, etc. into the bottom space of the cooking range 200 during the cooking process.

[0051] In another embodiment of the present utility model, referring to 4 and Figure 9, the inner side of the upper end of the second oxygen supplement channel 15 has a second oxygen outlet 153 communicating with the oxygen supplement interval 13, and a second water retaining edge 154 is provided below the second oxygen outlet 153. Specifically, the second water retaining edge 154 is provided at the second oxygen outlet 153, so as to increase the opening height of the second oxygen outlet 153, make the height of the second oxygen outlet 153 higher than the bottom of the oxygen supplement interval 13, and thus prevent water, impurities, dust, etc. from entering the bottom space of the cooking range 200 during the cooking process. In other embodiments, a filter screen or other structure may also be provided at the second oxygen outlet 153 to reduce the entry of water, impurities, dust, etc. into the bottom space of the cooking range 200 during the cooking process.

[0052] And in order to ensure the oxygen output of the second oxygen outlet 153, in the embodiment of the present invention, the side of the second oxygen supplement channel 15 facing the second oxygen outlet 153 protrudes from the outer ring mixing chamber 11, that is, the bottom wall of the outer ring mixing chamber 11 bulges upward locally, so as to enlarge the second oxygen outlet 153. That is, in this embodiment, the partial radial section of the second oxygen supplement channel 15 close to the second oxygen outlet 153 is formed by the local bottom wall of the outer ring mixing chamber 11 bulging upward, so that both the communication area of the second oxygen outlet 153 can be increased and the occupied space of the second oxygen supplement channel in the outer ring mixing chamber 11 can be reduced. Of course, in other embodiments, the entire radial section of the second oxygen supplement channel 15 is formed by the local bottom wall of the outer ring mixing chamber 11 bulging upward.

[0053] In the embodiment of the present invention, please refer to Figures 1 to 10, a third oxygen supply channel 16 is further provided below the outer ring mixing chamber 11. The inner side of the third oxygen supply channel 16 penetrates through the inner ring wall of the outer ring mixing chamber 11 to communicate with the oxygen supply interval 13, and the outer side of the third oxygen supply channel 16 penetrates through the outer ring wall of the outer ring mixing chamber 11. Specifically, the third oxygen supply channel 16 extends along the radial direction of the outer ring mixing chamber 11, and a fifth oxygen inlet 161 is provided on the outer side of the third oxygen supply channel 16. The fifth oxygen inlet 161 communicates with the external space of the outer ring mixing chamber 11. A third oxygen outlet 162 is provided on the inner side of the third oxygen supply channel 16. The third oxygen outlet 162 communicates with the oxygen supply interval 13, so that the oxygen supply interval 13 communicates with the external space of the outer ring mixing chamber 11, further increasing the oxygen intake amount on the inner side of the outer ring mixing chamber 11 and in the inner mixing chamber 12, promoting the combustion uniformity of the burner 100, and reducing the incomplete combustion of the burner 100. And usually, since the third oxygen supply channel 16 mainly communicates the oxygen supply interval 13 with the external space of the outer ring mixing chamber 11, it is easier to intake air. And since the second oxygen supply channel 15 mainly communicates with the bottom space of the gas stove, and the bottom space mainly depends on some gaps during the installation of the gas stove for air intake, and its oxygen intake amount is limited. If the cross-sectional area of the second oxygen supply channel 15 is too large, it is easy to cause unnecessary space waste. Therefore, usually, the cross-sectional area of the third oxygen supply channel 16 is larger than that of the second oxygen supply channel 15, which can improve the rationality of the overall layout of the oxygen supply channels and increase the total oxygen intake amount of the oxygen supply interval 13.

[0054] And in this embodiment, the burner base 1 is integrally formed, which is convenient for the processing of the burner base 1. And the burner base 1 is usually integrally injection-molded, and the oxygen supply interval 13, the first oxygen supply channel 14, the second oxygen supply channel 15, and the third oxygen supply channel 16 are formed by setting a core in the mold cavity. And in the actual processing process, the oxygen supply interval 13 may not be completely communicated with the second oxygen supply channel 15 and the first oxygen supply channel 14. Therefore, it is necessary to use a numerical control processing device again to process and form the first oxygen outlet 143 and the second oxygen outlet 153, and form the first water retaining edge 145 and the second water retaining edge 154.

[0055] Please refer to Figures 4 to 10 , in the embodiment of the present utility model, the first oxygen supply channel 14, the second oxygen supply channel 15, and the third oxygen supply channel 16 are arranged together along the circumferential direction of the outer ring mixing chamber 11. Specifically, at least one first oxygen supply channel 14, at least one second oxygen supply channel 15, and at least one third oxygen supply channel 16 are provided along the circumferential direction of the outer ring mixing chamber 11, and the first oxygen supply channel 14, the second oxygen supply channel 15, and the third oxygen supply channel 16 are arranged along the circumferential direction of the outer ring mixing chamber 11 in a preset manner.

[0056] Preferably, referring to Figure 4 and Figure 7, below the outer-ring mixing chamber 11 includes a first section 121 and a second section 122 connected in sequence. The first section 121 is for arranging the inner-ring ejector tube 18, the first oxygen supply channel 14, and the outer-ring ejector tube 17. The second section 122 is for arranging the second oxygen supply channel 15 and the third oxygen supply channel 16, and the second oxygen supply channel 15 and the third oxygen supply channel 16 are arranged alternately in sequence. Since the part of the burner base 1 below the outer-ring mixing chamber 11 needs to be connected to the inner-ring ejector tube 18 and the outer-ring ejector tube 17, the part for arranging the inner-ring ejector tube 18 and the outer-ring ejector tube 17 is set as the first section 121, and the rest is the second section 122. The first oxygen supply channel 14 is arranged in the first section 121, which helps to realize oxygen supply by arranging the oxygen supply channel in the part of the space in the lower part of the outer-ring mixing chamber 11 occupied by the outer-ring ejector tube 17 and the inner-ring ejector tube 18. The second oxygen supply channel 15 and the third oxygen supply channel 16 are arranged in the second section 122, which can further increase the overall oxygen supply amount of the oxygen supply interval 13. Moreover, the second oxygen supply channel 15 and the third oxygen supply channel 16 are arranged at intervals, which also helps to improve the arrangement uniformity of the oxygen supply channels in the second section 122, helps to improve the overall oxygen supply uniformity of the oxygen supply interval 13, and thus improves the combustion uniformity of the burner. That is, in this embodiment, at least one first oxygen supply channel 14, multiple second oxygen supply channels 15, and multiple third oxygen supply channels 16 are arranged along the circumferential direction of the outer-ring mixing chamber 11, and the second oxygen supply channels 15 and the third oxygen supply channels 16 are arranged alternately in sequence.

[0057] Of course, in other embodiments, only the first oxygen supply channel 14 and the third oxygen supply channel 16 can be arranged below the outer-ring mixing chamber 11. The first oxygen supply channel 14 is arranged in the first section 121, and the third oxygen supply channel 16 is arranged in the second section 122; or only the first oxygen supply channel 14 and the second oxygen supply channel 15 are arranged. The first oxygen supply channel 14 is arranged in the first section 121, and the second oxygen supply channel 15 is arranged in the second section 122; or only the first oxygen supply channel 14 is arranged, and one of the multiple first oxygen supply channels 14 is arranged in the first section 121. That is, there are multiple first oxygen supply channels 14, and the multiple first oxygen supply channels 14 are arranged along the circumferential direction of the outer-ring mixing chamber 11, and one of the multiple first oxygen supply channels 14 is arranged between the outer-ring ejector tube 17 and the inner-ring ejector tube 18.

[0058] The present utility model also proposes a gas stove, which includes a burner 100. The specific structure of the burner 100 refers to the above embodiments. Since this gas stove adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated one by one here.

[0059] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A burner, characterized in that: include: A burner base, and an outer ring fire cover and an inner ring fire cover installed on the burner base, wherein an outer ring gas mixing chamber and an inner gas mixing chamber are provided on the burner base, and the outer ring gas mixing chamber is arranged at the outer periphery of the inner gas mixing chamber to form an oxygen supplementation interval between the outer ring gas mixing chamber and the inner gas mixing chamber, the outer ring fire cover is arranged on the outer ring gas mixing chamber, and the inner ring fire cover is arranged on the inner gas mixing chamber; The inner ring wall of the outer ring mixing chamber partially bulges toward the outer ring wall to form a first oxygen supply channel whose upper end is connected to the oxygen supply interval, and the lower end of the first oxygen supply channel is connected to the bottom space of the furnace head base, and the first oxygen supply channel has an expansion protrusion extending toward the outer ring wall of the outer ring mixing chamber.

2. The burner according to claim 1, characterized in that One end of the expansion convex portion away from the oxygen supplementation interval laterally penetrates the outer ring wall of the outer ring gas mixing chamber.

3. The burner according to claim 1, characterized in that The inner side of the upper end of the first oxygen supplementation channel is provided with a first oxygen outlet communicated with the oxygen supplementation interval, and the lower side of the first oxygen outlet is provided with a first water retaining edge.

4. The burner according to claim 1, characterized in that An outer ring ejector pipe and an inner ring ejector pipe are also provided at the bottom of the furnace head base. The outer ring ejector pipe is connected to the outer ring gas mixing chamber, and the inner ring ejector pipe is connected to the inner gas mixing chamber. The first oxygen supplementation channel is provided between the outer ring ejector pipe and the inner ring ejector pipe.

5. The burner according to claim 4, characterized in that A second oxygen supply channel is also provided below the outer ring gas mixing chamber, the lower end of the second oxygen supply channel is connected to the bottom space of the burner base, and the inner side of the upper end of the second oxygen supply channel passes through the inner ring wall of the outer ring gas mixing chamber to connect to the oxygen supply interval.

6. The burner according to claim 5, characterized in that The outer side of the upper end of the second oxygen supply channel passes through the outer ring wall of the outer ring gas mixing chamber.

7. The burner according to claim 5, characterized in that The inner side of the upper end of the second oxygen supplementation channel is provided with a second oxygen outlet communicated with the oxygen supplementation interval, and the lower side of the second oxygen outlet is provided with a second water retaining edge.

8. The burner according to claim 5, characterized in that A third oxygen supply channel is also provided below the outer ring gas mixing chamber, the inner side of the third oxygen supply channel penetrates the inner ring wall of the outer ring gas mixing chamber to connect with the oxygen supply interval, and the outer side of the third oxygen supply channel penetrates the outer ring wall of the outer ring gas mixing chamber.

9. The burner according to claim 8, characterized in that The bottom of the outer ring gas mixing chamber includes a first section and a second section which are connected in sequence, the first section is used for setting the inner ring ejector pipe, the first oxygen supplementation channel and the outer ring ejector pipe, the second section is used for setting the second oxygen supplementation channel and the third oxygen supplementation channel, and the second oxygen supplementation channel and the third oxygen supplementation channel are arranged alternately in sequence.

10. The burner according to claim 4, characterized in that There are a plurality of the first oxygen supplementation channels, the plurality of the first oxygen supplementation channels are arranged along the circumference of the outer ring gas mixing chamber, and one of the plurality of the first oxygen supplementation channels is arranged between the outer ring ejector pipe and the inner ring ejector pipe.

11. A gas stove, characterized in that: Comprising the burner according to any one of claims 1 to 10.

Images