Combustor and gas stove

Abstract

The combustor comprises an inner combustion part, an outer combustion part, a plurality of connecting spokes and a heat exchange piece, the outer combustion part is arranged on the outer side of the inner combustion part in a surrounding mode, the connecting spokes are connected with the inner combustion part and the outer combustion part, and the heat exchange piece is arranged on the outer side of the inner combustion part. A first channel communicated with the air supply channel is formed between every two adjacent connecting spokes, the heat exchange piece is located between the inner combustion part and the outer combustion part and comprises a lap joint part and a heat exchange part which are connected, the lap joint part is detachably connected with the connecting spokes, and the heat exchange part is detachably connected with the lap joint part. And the heat exchange part is arranged corresponding to the first channel. The heat exchange part is arranged between the inner combustion part and the outer combustion part, the heat exchange area between bottom inlet air and the combustor during secondary air supply is increased through the heat exchange part, air entering the combustor from the outside can be heated by making contact with the heat exchange part, the preheating effect of the air during secondary air supply is improved, and the combustion efficiency of the combustor is improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen and bathroom appliances, and in particular to a burner and a gas stove. Background Art

[0002] Gas stoves are important kitchen appliances in people's daily lives. As the pace of life becomes faster and faster, people's requirements for the efficiency of gas stoves are also getting higher and higher. Gas stoves mainly consist of four parts: gas supply system, combustion system, auxiliary system and ignition system. Among them, the main component in the combustion system is the burner, which is the main part of the household stove.

[0003] During the use of existing burners, secondary air supply is usually performed to supplement the air required for combustion. However, this process may have the problem of poor air preheating effect of the secondary air supply, resulting in low combustion efficiency of the burner. Therefore, designing a product that can improve the combustion efficiency of the burner has become the focus of research and development of various gas stove manufacturers. Utility Model Content

[0004] The embodiments of the present application provide a burner and a gas stove, which are used to improve the problem of low combustion efficiency of the burner caused by poor air preheating effect of secondary air supply when the burner is supplied with secondary air in the related art.

[0005] In a first aspect, an embodiment of the present application provides a burner, comprising:

[0006] An inner combustion portion having an inner cavity and an inner fire hole communicating with the inner cavity;

[0007] The outer combustion part is arranged on the outer side of the inner combustion part and has an outer cavity and an outer fire hole connected with the outer cavity, and an air supply channel is formed between the outer combustion part and the inner combustion part;

[0008] a plurality of connecting spokes, located between the inner combustion portion and the outer combustion portion and connecting the inner combustion portion and the outer combustion portion, the plurality of connecting spokes are arranged at intervals around the circumference of the inner combustion portion, and a first channel communicating with the air supplement channel is formed between every two adjacent connecting spokes; and

[0009] A heat exchange component is located between the inner combustion part and the outer combustion part. The heat exchange component includes a lap joint and a heat exchange part connected to each other. The lap joint is detachably connected to the connecting spoke. The heat exchange part is arranged corresponding to the first channel.

[0010] In some of the embodiments, along the up-down direction, the connecting spoke has an upper surface close to the outer fire hole, and the overlapping portion overlaps the upper surface of the connecting spoke.

[0011] In some embodiments, the heat exchange element includes a plurality of the heat exchange portions, the plurality of the heat exchange portions are arranged at intervals along the circumference of the inner combustion portion, and each of the heat exchange portions is arranged corresponding to the first channel.

[0012] In some embodiments, at least two heat exchange parts are disposed corresponding to each of the first channels.

[0013] In some embodiments, the overlapping portion extends along the circumference of the inner combustion portion, the overlapping portion has an inner surface close to the inner combustion portion, the inner surface is provided with the heat exchange portion extending along the up and down directions, and along the radial direction of the inner combustion portion, the heat exchange portion extends toward the inner combustion portion.

[0014] In some embodiments, the heat exchange portion includes fins, and along the up and down direction, the fins have a lower end surface away from the external fire hole, and the external combustion portion has a first bottom surface away from the external fire hole, and the first bottom surface is flush with the lower end surface.

[0015] In some embodiments, the bottom of the outer combustion portion has a first bottom surface and an outer peripheral surface, the air supplement channel is arranged at the inner edge of the first bottom surface, and the outer peripheral surface is connected to the outer edge of the first bottom surface;

[0016] In a direction from bottom to top, the distance between the outer peripheral surface and the inner combustion part gradually increases.

[0017] In some embodiments, along the up-down direction, the inner combustion portion has a second bottom surface away from the inner fire hole, and the first bottom surface is arranged lower than the second bottom surface.

[0018] In some embodiments, the connecting spoke is provided with a spoke cavity, and the spoke cavity communicates with the inner cavity and the outer cavity;

[0019] The connecting spoke also includes a first connecting portion and a second connecting portion. The second connecting portion is closer to the outer fire hole than the first connecting portion. A convex strip is arranged on one side of the spoke cavity formed by the first connecting portion. The convex strip extends radially along the inner combustion portion.

[0020] In some of the embodiments, the first connecting portion is provided with a plurality of the convex strips, and the plurality of the convex strips are arranged at intervals around the circumference of the inner combustion portion.

[0021] In a second aspect, an embodiment of the present application provides a gas stove comprising the above-mentioned burner.

[0022] The burner and gas stove of the embodiment of the present application are provided with a heat exchange element between the inner combustion part and the outer combustion part, and the overlapping part of the heat exchange element is detachably connected to the connecting spoke, and the heat exchange part of the heat exchange element is provided corresponding to the first channel connected to the air supply channel. In this way, in the process of air outside the burner entering the burner from the bottom, it will contact the heat exchange element, that is, the heat exchange element is utilized to increase the heat exchange area between the bottom air intake and the burner. Since the heat exchange element is provided between the inner combustion part and the outer combustion part, during the combustion process of the burner, the temperature of the heat exchange element itself is also relatively high due to the effect of thermal radiation. Therefore, the secondary air entering the burner can be heated by contacting the heat exchange element in the process of reaching the inner fire hole and the outer fire hole. Then, when reaching the inner fire hole and the outer fire hole, the temperature of the secondary air supply air is relatively high, and the preheating effect is better, which can effectively improve the combustion efficiency of the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a schematic diagram of the structure of a burner provided in an embodiment of the present application;

[0025] Figure 2 yes Figure 1 A schematic diagram of the structure of the burner from above is shown;

[0026] Figure 3 yes Figure 1 The explosion structure diagram of the burner is shown;

[0027] Figure 4 yes Figure 1 A schematic cross-sectional structure diagram of a burner in a certain position is shown;

[0028] Figure 5 yes Figure 1 A schematic cross-sectional view of the burner in another position is shown;

[0029] Figure 6 yes Figure 1 A schematic diagram of the structure of a burner viewed from above is shown.

[0030] Description of reference numerals:

[0031] 10. Burner;

[0032] 11. inner combustion part; 111. inner cavity; 112. inner fire hole; 113. second bottom surface;

[0033] 12. external combustion part; 121. external cavity; 122. external fire hole; 123. first bottom surface; 124. outer peripheral surface;

[0034] 13, connecting spokes; 131, first channel; 132, upper surface; 133, spoke cavity; 134, first connecting portion; 1341, convex strip; 135, second connecting portion;

[0035] 14. heat exchange member; 141. overlap portion; 1411. inner surface; 142. heat exchange portion; 1421. fin; 1422. lower end surface;

[0036] 15. Air supply channel;

[0037] 16. gas distribution plate; 161. first gas distribution plate; 162. second gas distribution plate;

[0038] 17. Inner ring fire cover;

[0039] 18. Outer ring fire cover. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0041] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0042] In a first aspect, the present application embodiment provides a burner 10, see Figure 1 and Figure 2 , Figure 1 The structure diagram of the burner 10 according to the embodiment of the present application is shown. Figure 2 for Figure 1 The schematic diagram of the structure of the burner 10 in a top view is that the burner 10 includes an inner combustion part 11, an outer combustion part 12, connecting spokes 13 and a heat exchanger 14.

[0043] Combination Figure 4 , Figure 4 for Figure 1A schematic cross-sectional structure diagram of a middle burner 10 in a certain position, wherein the inner combustion portion 11 has an inner cavity 111 and an inner fire hole 112 connected to the inner cavity 111; the outer combustion portion 12 is arranged on the outer side of the inner combustion portion 11 and has an outer cavity 121 and an outer fire hole 122 connected to the outer cavity 121, and an air supply channel 15 is formed between the outer combustion portion 12 and the inner combustion portion 11; a plurality of connecting spokes 13 are located between the inner combustion portion 11 and the outer combustion portion 12 and connect the inner combustion portion 11 to the outer combustion portion 12; The inner combustion portion 11 and the outer combustion portion 12, a plurality of connecting spokes 13 are arranged at intervals around the circumference of the inner combustion portion 11, and a first channel 131 connected to the air supply channel 15 is formed between each two adjacent connecting spokes 13; the heat exchange member 14 is located between the inner combustion portion 11 and the outer combustion portion 12, the heat exchange member 14 includes a lap portion 141 and a heat exchange portion 142 connected to each other, the lap portion 141 and the connecting spoke 13 are detachably connected, and the heat exchange portion 142 is arranged corresponding to the first channel 131.

[0044] The burner 10 of the embodiment of the present application is provided with a heat exchanger 14 between the inner combustion part 11 and the outer combustion part 12, and the overlapped part 141 of the heat exchanger 14 is detachably connected to the connecting spoke 13, and the heat exchanger part 142 of the heat exchanger 14 is provided corresponding to the first channel 131 connected to the air supply channel 15. In this way, when the air outside the burner 10 enters the burner 10 from the bottom, it will contact the heat exchanger 14, that is, the heat exchanger 14 is used to increase the heat exchange area between the bottom air intake and the burner 10. The heat exchange element 14 is arranged between the inner combustion part 11 and the outer combustion part 12. During the combustion process of the burner 10, the temperature of the heat exchange element 14 itself is also relatively high due to the effect of heat radiation. Therefore, the secondary air entering the burner 10 can be heated by contacting with the heat exchange element 14 in the process of reaching the inner fire hole 112 and the outer fire hole 122. When reaching the inner fire hole 112 and the outer fire hole 122, the temperature of the secondary air supply air is relatively high, the preheating effect is better, and the combustion efficiency of the burner 10 can be effectively improved.

[0045] The overlapping portion 141 of the heat exchanger 14 is detachably connected to the connecting spoke 13 , which enables more flexible assembly and disassembly of the burner 10 compared to fixedly connecting the heat exchanger 14 to the connecting spoke 13 .

[0046] See also Figure 3 , Figure 3 Shows Figure 1Schematic diagram of the explosion structure of the burner 10, the burner 10 may include a gas distribution plate 16, an inner ring fire cover 17 and an outer ring fire cover 18, the gas distribution plate 16 and the inner ring fire cover 17 are connected to form an inner combustion part 11, and the gas distribution plate 16 and the outer ring fire cover 18 are connected to form an outer combustion part 12. Among them, the gas distribution plate 16 can be an integrated structure or a split structure, which is not limited. For example, in an embodiment of the present application, the gas distribution plate 16 may include a first gas distribution plate 161 and a second gas distribution plate 162, the outer combustion part 12 is formed between the first gas distribution plate 161 and the outer ring fire cover 18, and the inner combustion part 11 is formed between the second gas distribution plate 162 and the inner ring fire cover 17, so that it is easy to disassemble and assemble the burner 10, and the convenience of replacing the various components of the burner 10 is improved.

[0047] In one embodiment, if the gas distribution plate 16 includes a first gas distribution plate 161 and a second gas distribution plate 162, the first gas distribution plate 161 can be provided with a first connecting member, and the second gas distribution plate 162 can be correspondingly provided with a second connecting member. The first gas distribution plate 161 and the second gas distribution plate 162 are connected and fixed by the first connecting member and the second connecting member to realize the assembly of the gas distribution plate 16.

[0048] The first connecting member and the second connecting member may be connected via a threaded connection via a locking member, or may be connected via plug-in connection, snap-fit ​​connection, etc., which is not limited thereto.

[0049] In the embodiment of the present application, the burner 10 is provided with a plurality of connecting spokes 13, which can be used to further improve the connection reliability between the inner combustion part 11 and the outer combustion part 12, and further increase the connection area between the overlap part 141 and the connecting spokes 13, thereby improving the stability of the overlap part 141 between the inner combustion part 11 and the outer combustion part 12. Among them, the first channel 131 formed between each two adjacent connecting spokes 13 can be regarded as an air inlet for the air supply channel 15 to perform secondary air supply from the bottom.

[0050] The connecting spoke 13 is provided with a spoke cavity 133, and the spoke cavity 133 is connected to the inner cavity 111 and the outer cavity 121. The setting of the spoke cavity 133 can connect the inner cavity 111 with the outer cavity 121, increase the ventilation area between the outer cavity 121 and the inner cavity 111, make the primary gas in the inner cavity 111 and the outer cavity 121 mix more evenly, and then make the flame intensity of the inner fire hole 112 and the outer fire hole 122 more consistent when igniting, thereby improving the combustion uniformity of the burner 10.

[0051] Optionally, multiple connecting spokes 13 extend radially along the inner combustion section 11. In this way, the arrangement path of the connecting spokes 13 between the inner combustion section 11 and the outer combustion section 12 is the shortest, which can reduce flow resistance. At this time, the exchange and circulation of the mixed gas in the outer cavity 121 and the inner cavity 111 can be smoother.

[0052] In the embodiment of the present application, the connecting spokes 13 connecting the inner combustion part 11 and the outer combustion part 12 can be: the connecting spokes 13 connecting the gas distribution plate 16, or the connecting spokes 13 connecting the inner ring fire cover 17 and the outer ring fire cover 18, which is not limited to this.

[0053] For example, in one embodiment, in combination Figure 3 , the connecting spoke 13 can be connected to the gas distribution disk 16. At this time, if the gas distribution disk 16 includes a first gas distribution disk 161 and a second gas distribution disk 162, the connecting spoke 13 can include a first connecting portion 134 and a second connecting portion 135. The first connecting portion 134 is connected to the first gas distribution disk 161, and the second connecting portion 135 is connected to the second gas distribution disk 162. A spoke cavity 133 is formed between the first connecting portion 134 and the second connecting portion 135. Dividing the connecting spoke 13 into the first connecting portion 134 and the second connecting portion 135 can facilitate the disassembly and assembly of the connecting spoke 13.

[0054] Continue reading Figure 3 A convex strip 1341 can be provided on one side of the first connecting portion 134 constituting the spoke cavity 133. In this way, on the one hand, the convex strip 1341 can be used to improve the structural strength of the first connecting portion 134, thereby improving the overall structural strength of the burner 10; on the other hand, since the convex strip 1341 is provided between the inner combustion portion 11 and the outer combustion portion 12, during the combustion process of the burner 10, the convex strip 1341 itself has a high temperature under the action of heat radiation. Therefore, the primary mixed gas in the spoke cavity 133 can fully contact with the convex strip 1341 and heat up, thereby improving the preheating effect of the primary mixed gas and improving the combustion efficiency of the burner 10.

[0055] Furthermore, a plurality of ridges 1341 may be provided on one side of the first connection portion 134 constituting the spoke cavity 133, and the plurality of ridges 1341 are arranged at circumferential intervals around the inner combustion portion 11. Thus, on the one hand, the structural strength of the first connection portion 134 can be further improved by the plurality of ridges 1341, thereby improving the overall structural strength of the burner 10; on the other hand, the contact area between the primary mixed gas in the spoke cavity 133 and the ridges 1341 can be further increased by the plurality of ridges 1341, so that the primary mixed gas in the spoke cavity heats up faster, thereby improving the preheating effect of the primary mixed gas and improving the combustion efficiency of the burner 10.

[0056] It should be noted that the first connection portion 134 and the first gas distribution plate 161 can be an integrated structure or a split structure; the second connection portion 135 and the second gas distribution plate 162 can be an integrated structure or a split structure, and this is not limited. Figure 3The first connection part 134 and the first gas distribution plate 161 are an integrated structure, and the second connection part 135 and the second gas distribution plate 162 are an integrated structure. At this time, the first gas distribution plate 161 is connected to the second gas distribution plate 162, driving the first connection part 134 to be connected to the second connection part 135. In this way, after the gas distribution plate 16 is assembled, the connecting spokes 13 can be assembled, thereby improving the assembly efficiency of the burner 10.

[0057] Along the up and down direction, the connecting spoke 13 has an upper surface 132 close to the outer fire hole 122, and the overlapping portion 141 is overlapped on the upper surface 132 of the connecting spoke 13. In this way, on the one hand, the assembly between the overlapping portion 141 and the connecting spoke 13 can be made simpler, and the operability of assembling the overlapping portion 141 on the connecting spoke 13 is improved; on the other hand, overlapping the overlapping portion 141 on the upper surface 132 of the connecting spoke 13 is more convenient to install than assembling the overlapping portion 141 on the lower surface of the connecting spoke 13. It can be achieved without the aid of clips or locking parts, which can effectively improve the convenience of assembling the overlapping portion 141 on the connecting spoke 13.

[0058] Combination Figure 2 , Figure 3 and Figure 5 , Figure 5 for Figure 1 The schematic diagram of the cross-sectional structure of the middle burner 10 at another position shows that the overlap portion 141 extends along the circumference of the inner combustion portion 11. In this way, the connection area between the overlap portion 141 and the connecting spoke 13 can be increased, thereby improving the reliability of the overlap portion 141 on the connecting spoke 13.

[0059] The overlapping portion 141 has an inner surface 1411 close to the inner combustion portion 11, and the inner surface 1411 is provided with a heat exchange portion 142 extending in the up-down direction, and along the radial direction of the inner combustion portion 11, the heat exchange portion 142 extends toward the inner combustion portion 11. In this way, the contact area between the heat exchange portion 142 and the air entering the air supply channel 15 can be increased in the radial direction of the inner combustion portion 11, so that the air can fully contact with the heat exchange portion 142 and heat up, thereby improving the preheating effect of the air during the secondary air supply, and further improving the combustion efficiency of the burner 10.

[0060] In one embodiment, in combination Figure 2 and Figure 6 , Figure 6 for Figure 1In the schematic diagram of the structure of the burner 10 viewed from above, the heat exchange element 14 includes a plurality of heat exchange parts 142, which are arranged at intervals along the circumference of the inner combustion part 11, and each heat exchange part 142 is arranged corresponding to the first channel 131. By providing a plurality of heat exchange parts 142, the contact area between the air and the heat exchange part 142 during the secondary air supply can be further increased by using the plurality of heat exchange parts 142, so that the high temperature generated by the heat radiation of the heat exchange part 142 itself can be used to preheat the air, so that the air temperature rises faster, the preheating effect is better, and the combustion efficiency of the burner 10 can be further improved.

[0061] Furthermore, at least two heat exchange parts 142 are correspondingly arranged for each first channel 131. In this way, after the air outside the burner 10 enters the first channel 131 from the bottom, it can contact the multiple heat exchange parts 142 in the first channel 131, thereby increasing the heat exchange area between the air and the heat exchange parts 142, making the air temperature rise faster, further improving the preheating effect of the air during the secondary air replenishment, and thus improving the combustion efficiency of the burner 10.

[0062] It should be noted that the heat exchange portion 142 may be in the form of fins, stripes, convex points, etc., and this is not limited. Figure 3 and Figure 5 The heat exchange portion 142 includes a fin 1421. Along the up and down direction, the fin 1421 has a lower end surface 1422 away from the external fire hole 122. The external combustion portion 12 has a first bottom surface 123 away from the external fire hole 122. The first bottom surface 123 is flush with the lower end surface 1422 of the fin 1421. In this way, when the external air enters the burner 10 from the bottom through the first channel 131, it begins to contact the fin 1421, thereby further increasing the contact area between the air and the fin 1421 during bottom air intake in the up and down direction, so that the air can fully contact the heat exchange portion 142 and heat up, thereby improving the preheating effect of the air during secondary air supply, and further improving the combustion efficiency of the burner 10.

[0063] In another embodiment, along the up-down direction, the first bottom surface 123 may be located below the lower end surface 1423. In this way, when the air outside the burner 10 enters the supplementary air channel 15 through the first bottom surface 123, the lower end surface 1422 of the heat exchange portion 142 will not occupy the area of ​​the air inlet at the bottom of the supplementary air channel 15, so that the gas flow rate entering the supplementary air channel 15 is larger, thereby better providing more sufficient secondary air for the inner fire hole 112 and the outer fire hole 122 connected to the supplementary air channel 15 to supply their combustion.

[0064] In the embodiment of the present application, the outer fire holes 122 are arranged in a full circle around the circumference of the outer combustion part 12, so that the outer fire holes 122 arranged in a full circle can be used to improve the combustion intensity of the burner 10, thereby improving the combustion efficiency of the burner 10. In addition, the fire direction of the outer fire holes 122 is toward the position where the inner combustion part 11 is located, and the fire direction of the inner fire holes 112 is toward the position where the outer combustion part 12 is located. In this way, the flames of the outer fire holes 122 and the flames of the inner fire holes 112 burn alternately, which can improve the uniformity of the combustion of the burner 10.

[0065] Combination Figures 4 to 6 The bottom of the outer combustion part 12 has a first bottom surface 123 and an outer peripheral surface 124. The air supply channel 15 is arranged at the inner edge of the first bottom surface 123, and the outer peripheral surface 124 is connected to the outer edge of the first bottom surface 123. From bottom to top, the distance between the outer peripheral surface 124 and the inner combustion part 11 gradually increases. In this way, the distance between the outer peripheral surface 124 and the inner combustion part 11 is the smallest near the first bottom surface 123, so that the air outside the burner 10 can enter the first channel 131 at the inner edge of the first bottom surface 123 from the top through the outer peripheral surface 124, and then enter the air supply channel 15 connected to the first channel 131, so as to improve the convenience of air intake during secondary air supply.

[0066] Combination Figure 4 and Figure 5 In the vertical direction, the inner combustion part 11 has a second bottom surface 113 away from the inner fire hole 112, and the first bottom surface 123 is set lower than the second bottom surface 113. In this way, a height difference is generated between the first bottom surface 123 and the second bottom surface 113, and when the second bottom surface 113 contacts the table of the gas stove, air can enter the first channel 131 and the air supply channel 15 by utilizing the gap formed by the height difference, so as to realize the secondary air supply for the combustion of the burner 10.

[0067] Furthermore, the second bottom surface 113 is parallel to the horizontal plane, so that the second bottom surface 113 is more stable when in contact with the tabletop of the gas stove, which can improve the stability of the burner 10 when placed.

[0068] The first bottom surface 123 , the second bottom surface 113 and the bottom surface of the connecting spokes 13 together constitute the bottom surface of the burner 10 .

[0069] In the second aspect, the embodiment of the present application provides a gas stove, which includes the above-mentioned burner 10. The specific structure of the burner 10 refers to the above-mentioned embodiment. Since the gas stove adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0070] In summary, the present application provides a burner 10 and a gas stove, which have a better preheating effect on the secondary air supply air and a higher combustion efficiency during use.

[0071] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to at least two, for example, two, three, four, etc. "and / or" describes the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0072] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A burner, characterized in that: include: An inner combustion portion having an inner cavity and an inner fire hole communicating with the inner cavity; The outer combustion part is arranged on the outer side of the inner combustion part and has an outer cavity and an outer fire hole connected with the outer cavity, and an air supply channel is formed between the outer combustion part and the inner combustion part; A plurality of connecting spokes, located between the inner combustion portion and the outer combustion portion and connecting the inner combustion portion and the outer combustion portion, the plurality of connecting spokes are arranged at intervals around the circumference of the inner combustion portion, and a first channel communicating with the air supplement channel is formed between each two adjacent connecting spokes; as well as A heat exchange component is located between the inner combustion part and the outer combustion part. The heat exchange component includes a lap joint and a heat exchange part connected to each other. The lap joint is detachably connected to the connecting spoke. The heat exchange part is arranged corresponding to the first channel.

2. The burner according to claim 1, characterized in that Along the up-down direction, the connecting spoke has an upper surface close to the outer fire hole, and the overlapping portion overlaps the upper surface of the connecting spoke.

3. The burner according to claim 1, characterized in that The heat exchange element includes a plurality of heat exchange parts, which are arranged at intervals along the circumference of the inner combustion part, and each of the heat exchange parts is arranged corresponding to the first channel.

4. The burner according to claim 3, characterized in that At least two heat exchange parts are correspondingly arranged at each of the first channels.

5. The burner according to claim 1, characterized in that The overlapping portion extends along the circumference of the inner combustion portion, and the overlapping portion has an inner surface close to the inner combustion portion. The inner surface is provided with the heat exchange portion extending along the up-down direction, and along the radial direction of the inner combustion portion, the heat exchange portion extends toward the inner combustion portion.

6. The burner according to claim 5, characterized in that The heat exchange part includes fins, and along the up and down direction, the fins have a lower end surface away from the external fire hole, and the external combustion part has a first bottom surface away from the external fire hole, and the first bottom surface is flush with the lower end surface.

7. The burner according to claim 1, characterized in that The bottom of the outer combustion part has a first bottom surface and an outer peripheral surface, the air supplement channel is arranged at the inner edge of the first bottom surface, and the outer peripheral surface is connected to the outer edge of the first bottom surface; In a direction from bottom to top, the distance between the outer peripheral surface and the inner combustion part gradually increases.

8. The burner according to claim 7, characterized in that Along the up-down direction, the inner combustion portion has a second bottom surface away from the inner fire hole, and the first bottom surface is arranged lower than the second bottom surface.

9. The burner according to claim 1, characterized in that The connecting spoke is provided with a spoke cavity, and the spoke cavity communicates with the inner cavity and the outer cavity; The connecting spoke also includes a first connecting portion and a second connecting portion. The second connecting portion is closer to the outer fire hole than the first connecting portion. A convex strip is arranged on one side of the spoke cavity formed by the first connecting portion. The convex strip extends radially along the inner combustion portion.

10. The burner according to claim 9, characterized in that The first connecting portion is provided with a plurality of the convex strips, and the plurality of the convex strips are arranged at intervals around the circumference of the inner combustion portion.

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

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