Cooker burner

Abstract

The application discloses a stove burner, which comprises a combustion tube and a base, a plurality of fire holes are arranged on the combustion tube at intervals, the combustion tube comprises a first fire tube and a second fire tube, the first fire tube is in a first spiral structure gradually increasing from the middle part to the outer side in the horizontal plane, the second fire tube is in a second spiral structure gradually increasing from the middle part to the outer side in the horizontal plane, the first spiral structure is embedded in the second spiral structure, the head end of the first fire tube is communicated with the tail end of the second fire tube, and the tail end of the first fire tube and the head end of the second fire tube are both communicated with a gas mixing chamber in the base. The stove burner comprises the combustion tube and the base, is simple in structure and low in cost, the first fire tube forms the first spiral structure, the second fire tube forms the second spiral structure, the first spiral structure is embedded in the second spiral structure, the two spiral structures are connected at the head and tail to form a burner with multiple rings and adjacent rings being connected with each other, more fire holes are arranged between the adjacent rings, the flame heating is more uniform, and the cooking experience is better.

Description

Technical Field

[0001] This invention relates to a stove burner. Background Technology

[0002] To improve heating efficiency, existing stove burners typically feature inner and outer ring flames, creating a large gap between them. The portion of the pot bottom in this gap receives no flame heat, resulting in poor heating and overall ineffectiveness. Furthermore, because the inner and outer ring flames are disconnected, an additional flame-transfer structure is required between them, even with a single ignition needle. This leads to a complex burner structure, making manufacturing difficult and increasing costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of complex structure and uneven heating of existing stove burners, and to provide a stove burner.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A stove burner includes a combustion tube and a base. The combustion tube has a plurality of flame holes spaced apart. The combustion tube includes a first flame tube and a second flame tube. The first flame tube has a first spiral structure that gradually increases in size from the middle to the outside in a horizontal plane. The second flame tube has a second spiral structure that gradually increases in size from the middle to the outside in a horizontal plane. The first spiral structure is embedded in the second spiral structure. The first end of the first flame tube is connected to the tail end of the second flame tube. The tail end of the first flame tube and the first end of the second flame tube are both connected to the mixing chamber in the base.

[0006] In this design, the stove burner includes a combustion tube and a base, featuring a simple structure and low cost. The first burner tube forms a first spiral structure, and the second burner tube forms a second spiral structure. The first spiral structure is embedded within the second spiral structure, and the two spiral structures are connected end-to-end to form a multi-ring burner with interconnected adjacent rings. This allows for more flame holes between adjacent rings, resulting in more uniform flame heating and a better cooking experience.

[0007] The burner is made by spirally winding the same combustion tube. The flame can be transmitted sequentially between the multiple rings through the flame holes, so there is no need to set up a complex flame transmission structure between the rings, which simplifies the structural design of the burner.

[0008] The combustion tube has several burner holes located on the same gas path. Compared with multiple gas paths, the gas pressure is constant, the flame uniformity is better, and significant differences in flame height can be avoided. In addition, the structure is simple, easy to install, and low in cost. At the same time, there are fewer interfaces, the risk of gas leakage is lower, and the safety is higher.

[0009] Because the combustion tube is relatively long, in order to solve the problem of insufficient pressure in the middle of the combustion tube, air is introduced at both ends of the combustion tube to compensate for the pressure loss caused by the long stroke of the middle of the combustion tube, so as to make the flame on the burner uniform.

[0010] Preferably, the beginning of the first fire tube and the end of the second fire tube are both located in the middle of the base, and the end of the first fire tube and the beginning of the second fire tube are both located on the outside of the base.

[0011] In this scheme, the above-mentioned structural configuration makes it easy to set the first and second burners to have the same structure, which is convenient for processing and also makes it easy to lay the air intake passages at both ends of the combustion tube.

[0012] Preferably, the base is provided with a first mounting part and a second mounting part, and the two ends of the combustion tube are respectively mounted on the base through the first mounting part and the second mounting part, and a clearance space for replenishing secondary air is formed between the combustion tube and the base.

[0013] In this solution, the above-mentioned structure is adopted, which is simple and convenient to install. At the same time, the middle part of the combustion tube is suspended, forming a clearance space between the combustion tube and the base without any obstruction. This makes secondary air replenishment of the burner more convenient, and the amount of air that can be replenished is greatly increased compared with ordinary burners, resulting in more complete combustion and higher thermal efficiency. In addition, it is also easy to clean the combustion tube and the base.

[0014] Preferably, the first helical structure is embedded in the second helical structure to form a plurality of annular structures, wherein the spacing between adjacent annular structures gradually decreases from the outside to the center.

[0015] And / or, the diameter of both the first fire tube and the second fire tube gradually decreases along the direction of gas flow.

[0016] In this design, the aforementioned structural configuration, with gas intakes at both ends of the combustion pipe located on the outer side of the burner, results in higher gas pressure and a longer flame near the outer edge of the combustion pipe. A relatively large spacing between the outer rings prevents flame interference between rings, thus avoiding incomplete combustion. To ensure better heating uniformity, the spacing between the outer rings with higher heat output is relatively larger, resulting in a sparser flame, while the central area with lower heat output has a denser flame, thereby improving heating efficiency.

[0017] The diameters of both the first and second burners gradually decrease along the direction of gas flow, which can significantly reduce friction loss along the burner tubes, making the flame size on the burner more consistent and the fire distribution more uniform.

[0018] Preferably, the combustion tube is divided into an outer ring region, a middle ring region, and an inner ring region from the outside to the center. The diameter of the flame holes in the middle ring region is larger than the diameter of the flame holes in the outer ring region and the inner ring region, and the diameter of the flame holes in the inner ring region is smaller than the diameter of the flame holes in the outer ring region.

[0019] In this design, the combustion tube in the outer ring region experiences higher pressure compared to other regions. Therefore, setting smaller burner orifices compared to the middle ring region slightly reduces the flame height. As the gas flows from the outer ring region to the middle ring region, the pressure decreases due to frictional resistance. Setting larger burner orifices in the outer ring region slightly increases the flame height. Since the gas pipe uses two-end intake, the gas converges and counteracts in the middle of the inner ring region, increasing the pressure. Therefore, the burner orifices in the inner ring region are set to the smallest possible size to reduce the flame size and mitigate the impact of increased pressure on flame height. This configuration results in better flame uniformity and stability, reducing the likelihood of flame detachment. In this design, the outer ring region corresponds to a burner diameter of 60-120mm, the middle ring region to a burner diameter of 60-30mm, and the inner ring region to a burner diameter of less than 30mm.

[0020] Preferably, the stove burner further includes an ignition needle, which is disposed between the first burner tube and the second burner tube. The first burner tube is provided with a first ignition hole, and the second burner tube is provided with a second ignition hole. The first ignition hole and the second ignition hole are symmetrical with respect to the ignition needle, and the openings of the first ignition hole and the second ignition hole both face the ignition needle.

[0021] In this design, the ignition needle is positioned between the first and second burner tubes. The first and second ignition holes are symmetrical with respect to the ignition needle, and the openings of both holes face the ignition needle, forming a counter-current configuration. During ignition, the ignition needle can ignite bidirectionally, resulting in a higher ignition success rate. The flame can be transmitted along the burner holes on the first and second burner tubes, thereby increasing the flame transmission rate.

[0022] Preferably, the stove burner further includes a thermocouple disposed between the first burner tube and the second burner tube. The first burner tube has a first flame-keeping hole, and the second burner tube has a second flame-keeping hole. The first flame-keeping hole and the second flame-keeping hole are symmetrical with respect to the thermocouple, and the openings of the first flame-keeping hole and the second flame-keeping hole both face the thermocouple.

[0023] In this design, the first and second flame-keeping holes are symmetrical with respect to the thermocouple, and the openings of both the first and second flame-keeping holes face the thermocouple. The first and second flame-keeping holes form an opposing configuration, and any small flames on the first and second flame-keeping holes can be detected by the thermocouple, making the flame-keeping performance more reliable.

[0024] Preferably, the ignition needle and the thermocouple are both located in the middle of the base and on both sides of the combustion tube.

[0025] In this solution, the above-mentioned structural form is adopted so that the ignition needle and the thermocouple will not interfere with each other, thus optimizing the structural setting of the stove burner.

[0026] Preferably, the stove burner further includes an ejector tube, one end of which is connected to the mixing chamber of the base. The airflow channel of the ejector tube extends horizontally. The base also has two vertical direct current channels. The tail end of the first fire tube and the head end of the second fire tube are respectively connected to the mixing chamber of the base through one of the vertical direct current channels.

[0027] In this design, the mixture of gas and air flows horizontally into the mixing chamber through the gas flow channel in the ejector tube, and then flows into the first burner and the second burner through two vertical straight channels respectively. The mixture first flows horizontally and then turns to flow vertically, which makes the gas and air mix more evenly and the combustion more complete.

[0028] Preferably, an arc-shaped guide portion is provided in the base opposite to the ejector tube, the guide portion protrudes toward the interior of the mixing chamber, the outlet of the airflow channel faces the guide portion, and the two vertical straight channels are respectively located on both sides of the guide portion.

[0029] In this design, the flow guide is used to guide and divert the gas flowing into the mixing chamber from the ejector tube, smoothly guiding the gas to the vertical direct flow channels on both sides. The entire flow channel is smooth, with low frictional resistance, minimal kinetic energy loss, and more uniform mixing of gas and air.

[0030] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0031] The positive and progressive effects of this invention are as follows: the stove burner includes a combustion tube and a base, with a simple structure and low cost. The first fire tube forms a first spiral structure, and the second fire tube forms a second spiral structure. The first spiral structure is embedded in the second spiral structure, and the two spiral structures are connected end to end to form a multi-ring burner with adjacent rings interconnected. This allows for more fire holes to be set between adjacent rings, resulting in more uniform flame heating and a better cooking experience.

[0032] The burner is made by spirally winding the same combustion tube. The flame can be transmitted sequentially between the multiple rings through the flame holes, so there is no need to set up a complex flame transmission structure between the rings, which simplifies the structural design of the burner.

[0033] The combustion tube has several burner holes located on the same gas path. Compared with multiple gas paths, the gas pressure is constant, the flame uniformity is better, and significant differences in flame height can be avoided. In addition, the structure is simple, easy to install, and low in cost. At the same time, there are fewer interfaces, the risk of gas leakage is lower, and the safety is higher.

[0034] Because the combustion tube is relatively long, in order to solve the problem of insufficient pressure in the middle of the combustion tube, air is introduced at both ends of the combustion tube to compensate for the pressure loss caused by the long stroke of the middle of the combustion tube, so as to make the flame on the burner uniform. Attached Figure Description

[0035] Figure 1 This is a schematic diagram (a) of the structure of a stove burner according to a preferred embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram (II) of the structure of a stove burner according to a preferred embodiment of the present invention.

[0037] Figure 3 This is a schematic diagram of the combustion tube of a stove burner according to a preferred embodiment of the present invention.

[0038] Figure 4 This is a cross-sectional structural diagram of the combustion tube of a stove burner according to a preferred embodiment of the present invention.

[0039] Figure 5 This is a cross-sectional structural diagram of the base of a stove burner according to a preferred embodiment of the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] Combustion tube 1

[0042] Fire Hole 11

[0043] First fire tube 12

[0044] First ignition hole 121

[0045] First fireproof hole 122

[0046] The first fire tube's tip 12a

[0047] The tail end 12b of the first fire tube

[0048] Second fire tube 13

[0049] Second ignition hole 131

[0050] Second fireproof hole 132

[0051] The first end 13a of the second fire tube

[0052] The tail end 13b of the second fire tube

[0053] Outer Ring Area 1a

[0054] Central Area 1b

[0055] Inner Ring Area 1c

[0056] Base 2

[0057] Mixing chamber 21

[0058] Vertical Directional Channel 22

[0059] Flow guide 23

[0060] First Installation Section 24

[0061] Second Installation Section 25

[0062] Ignition needle 3

[0063] Thermocouple 4

[0064] ejector tube 5

[0065] airflow channel 51

[0066] 6 spaces Detailed Implementation

[0067] The present invention will be described more clearly and completely below by way of embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments described herein.

[0068] like Figures 1-5 As shown, this embodiment discloses a stove burner, which includes a base 2 and a combustion tube 1 installed on the base 2. The combustion tube 1 has a plurality of flame holes 11 spaced apart. The combustion tube 1 includes a first flame tube 12 and a second flame tube 13. The first flame tube 12 has a first spiral structure that gradually increases in size from the center to the outside in a horizontal plane, and the second flame tube 13 has a second spiral structure that gradually increases in size from the center to the outside in a horizontal plane. The first spiral structure is embedded in the second spiral structure. The first end 12a of the first flame tube is connected to the tail end 13b of the second flame tube. Both the tail end 12b of the first flame tube and the first end 13a of the second flame tube are connected to the mixing chamber 21 within the base 2.

[0069] In this embodiment, the stove burner includes a combustion tube 1 and a base 2, featuring a simple structure and low cost. A first fire tube 12 forms a first spiral structure, and a second fire tube 13 forms a second spiral structure. The first spiral structure is embedded within the second spiral structure, and the two spiral structures are connected end-to-end to form a multi-ring burner with interconnected adjacent rings. This allows for more flame holes 11 between adjacent rings, resulting in more uniform flame heating and a better cooking experience. Furthermore, since the burner is spirally wound from the same combustion tube 1, flame can be sequentially transmitted between the multiple rings through several flame holes 11, eliminating the need for complex flame transmission structures between rings and simplifying the burner's structure. Additionally, the flame holes 11 on the combustion tube 1 are located on the same gas path. Compared to multiple gas paths, this ensures a constant gas pressure, better flame uniformity, and avoids significant differences in flame height. The structure is simple, easy to install, and low-cost. Additionally, fewer interfaces reduce the risk of gas leakage and enhance safety.

[0070] like Figure 1 As shown, since the combustion tube 1 is relatively long, in order to solve the problem of insufficient pressure in the middle flame hole 11 of the combustion tube 1, air is introduced at both ends of the combustion tube 1 to compensate for the pressure loss caused by the long stroke of the middle flame hole 11 of the combustion tube 1, so that the flame on the burner is uniform.

[0071] like Figure 1 As shown, in this embodiment, the first end 12a of the first burner tube and the last end 13b of the second burner tube are both located in the middle of the base 2, and the last end 12b of the first burner tube and the first end 13a of the second burner tube are both located on the outside of the base 2. This makes it easy to set the first burner tube 12 and the second burner tube 13 to have the same structure, which is convenient for processing and also makes it easy to arrange air intake passages at both ends of the combustion tube 1.

[0072] like Figure 2 As shown, the base 2 is provided with a first mounting part 24 and a second mounting part 25. The two ends of the combustion tube 1 are respectively mounted on the base 2 through the first mounting part 24 and the second mounting part 25, making the installation simple and convenient.

[0073] like Figure 2 As shown, the middle part of the combustion tube 1 is suspended in the air. A clearance space 6 for replenishing secondary air is formed between the combustion tube 1 and the base 2, so that there is no obstruction below the combustion tube 1. The secondary air replenishment of the burner is more convenient, and the amount of air that can be replenished is greatly increased compared with ordinary burners. The combustion is more complete and the thermal efficiency is higher. In addition, it is also easier to clean the combustion tube 1 and the base 2.

[0074] like Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, the first spiral structure is embedded in the second spiral structure to form multiple ring structures, and the spacing between adjacent ring structures is uniformly arranged from the outside to the center.

[0075] In another embodiment, the first helical structure is embedded within the second helical structure to form multiple annular structures, with the spacing between adjacent annular structures gradually decreasing from the outer edge to the center. Since the gas is introduced from both ends of the gas pipe, and both are located on the outer side of the burner, the gas pressure near the outer edge of the combustion pipe 1 is relatively higher, resulting in a longer flame. Setting a relatively large spacing between the outer rings avoids mutual interference between the flames of the rings, preventing incomplete combustion. To ensure better heating uniformity, the spacing between the outer rings with higher heat output is relatively larger, resulting in a sparser flame, while the central area with relatively lower heat output has a denser flame, thus improving heating efficiency.

[0076] like Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, for ease of processing, the diameter of the first fire tube 12 and the diameter of the second fire tube 13 are both consistent with the direction of gas flow.

[0077] In another embodiment, the diameter of the first fire tube 12 and the diameter of the second fire tube 13 gradually decrease along the flow direction of the gas, which can significantly reduce the friction loss of the combustion tube 1, making the flame size on the burner more consistent and the fire distribution more uniform.

[0078] like Figure 3 As shown, the combustion tube 1 is divided into an outer ring region 1a, a middle ring region 1b, and an inner ring region 1c from the outside to the center. The diameter of the flame holes 11 in the middle ring region 1b is larger than that in the outer ring region 1a and the inner ring region 1c, while the diameter of the flame holes 11 in the inner ring region 1c is smaller than that in the outer ring region 1a. Since the combustion tube 1 in the outer ring region 1a has a higher pressure than the combustion tube 1 in other regions, setting smaller flame holes 11 in the outer ring region 1a compared to the middle ring region 1b can slightly reduce the flame height. When the gas flows from the outer ring region 1a to the middle ring region 1b, the gas pressure will decrease due to the friction resistance. Setting larger flame holes 11 in the middle ring region 1b compared to the outer ring region 1a can slightly increase the flame height and improve the uniformity of heating. Because the gas pipe uses two-end intake, when the gas flows to the inner ring region 1c, it converges and opposes in the middle, causing the gas pressure to increase. Therefore, the burner hole 11 in the inner ring region 1c is set to its minimum size to reduce the flame size and mitigate the impact of increased pressure on the flame. This setting results in better flame uniformity and stability, making it less prone to flame lift-off.

[0079] like Figure 3 As shown, in this embodiment, the outer ring region 1a is the region with a burner diameter of 60-120mm, the middle ring region 1b is the region with a burner diameter of (60-30mm), and the inner ring region 1c is the region with a burner diameter of less than 30mm.

[0080] like Figure 1 , Figure 2 and Figure 4 As shown, the stove burner also includes an ignition needle 3, which is located between the first burner tube 12 and the second burner tube 13. The first burner tube 12 has a first ignition hole 121, and the second burner tube 13 has a second ignition hole 131. The first ignition hole 121 and the second ignition hole 131 are symmetrical with respect to the ignition needle 3, and the openings of both the first ignition hole 121 and the second ignition hole 131 face the ignition needle 3. The first ignition hole 121 and the second ignition hole 131 form an opposing configuration, allowing the ignition needle 3 to ignite bidirectionally during ignition, resulting in a higher ignition success rate. The flame can be transmitted along the flame holes 11 on the first burner tube 12 and the second burner tube 13 respectively, improving the flame transmission rate.

[0081] like Figure 1 , Figure 2 and Figure 4 As shown, the stove burner also includes a thermocouple 4, which is located between the first burner tube 12 and the second burner tube 13. The first burner tube 12 has a first flame-keeping hole 122, and the second burner tube 13 has a second flame-keeping hole 132. The first flame-keeping hole 122 and the second flame-keeping hole 132 are symmetrical with respect to the thermocouple 4, and the openings of both the first flame-keeping hole 122 and the second flame-keeping hole 132 face the thermocouple 4. The first flame-keeping hole 122 and the second flame-keeping hole 132 form an opposing configuration, and even small flames on the first flame-keeping hole 122 and the second flame-keeping hole 132 can be sensed by the thermocouple 4, making the flame-keeping performance more reliable.

[0082] like Figure 1 , Figure 2 and Figure 4 As shown, the ignition needle 3 and the thermocouple 4 are both located in the middle of the base 2 and on both sides of the combustion tube 1, so that the ignition needle 3 and the thermocouple 4 will not interfere with each other, thus optimizing the structural setting of the stove burner.

[0083] like Figure 1 , Figure 2 and Figure 5As shown, the stove burner also includes an injector tube 5, one end of which is connected to the mixing chamber 21 of the base 2. The airflow channel 51 of the injector tube 5 extends horizontally. Two vertical direct current channels 22 are also provided inside the base 2. The tail end 12b of the first burner and the head end 13a of the second burner are respectively connected to the mixing chamber 21 of the base 2 through a vertical direct current channel 22. The mixture of gas and air flows horizontally into the mixing chamber 21 through the airflow channel 51 in the injector tube 5, and then flows into the first burner 12 and the second burner 13 through the two vertical direct current channels 22 respectively. The mixture first flows horizontally and then turns to flow vertically, making the gas and air mix more evenly and combustion more complete.

[0084] like Figure 5 As shown, an arc-shaped guide section 23 is provided inside the base 2 opposite to the ejector tube 5. The guide section 23 protrudes towards the interior of the mixing chamber 21, and the outlet of the airflow channel 51 faces the guide section 23. Two vertical direct current channels 22 are located on both sides of the guide section 23. The guide section 23 is used to guide and divert the gas flowing into the mixing chamber 21 from the ejector tube 5, smoothly guiding the gas to the vertical direct current channels 22 on both sides. The entire flow path is smooth, with low friction resistance, minimal kinetic energy loss, and more uniform mixing of gas and air.

[0085] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A cooktop burner, characterized by, The stove burner comprises a combustion tube and a base, the combustion tube is provided with a plurality of fire holes at intervals, the combustion tube comprises a first fire tube and a second fire tube, the first fire tube is gradually increased in a first spiral structure from the middle to the outside in the horizontal plane, the second fire tube is gradually increased in a second spiral structure from the middle to the outside in the horizontal plane, the first spiral structure is embedded in the second spiral structure, the first end of the first fire tube is communicated with the tail end of the second fire tube, and the tail end of the first fire tube and the head end of the second fire tube are communicated with a mixing chamber in the base. The first end of the first fire tube and the tail end of the second fire tube are located in the middle of the base, and the tail end of the first fire tube and the head end of the second fire tube are located on the outside of the base. The first spiral structure is embedded in the second spiral structure to form a plurality of annular structures, and the spacing between adjacent annular structures gradually decreases from the outside to the center. The stove burner further comprises an ejector pipe, one end of the ejector pipe is communicated with the mixing chamber of the base, the airflow flow channel of the ejector pipe is arranged in the horizontal direction, two vertical flow channels are further arranged in the base, and the tail end of the first fire tube and the head end of the second fire tube are respectively communicated with the mixing chamber of the base through one of the vertical flow channels.

2. The cooktop burner of claim 1, wherein The base is provided with a first mounting portion and a second mounting portion, and the two ends of the combustion tube are respectively mounted on the base through the first mounting portion and the second mounting portion, and an avoiding space for supplementing secondary air is formed between the combustion tube and the base.

3. The cooktop burner of claim 1, wherein The pipe diameter of the first fire tube and the pipe diameter of the second fire tube gradually decrease along the flow direction of the gas.

4. The cooktop burner of claim 1, wherein The combustion tube is divided into an outer ring region, a middle ring region and an inner ring region from the outside to the center, the hole diameter of the fire hole in the middle ring region is greater than the hole diameter of the fire hole in the outer ring region and the inner ring region, and the hole diameter of the fire hole in the inner ring region is smaller than the hole diameter of the fire hole in the outer ring region.

5. The cooktop burner of claim 1, wherein The stove burner further comprises an ignition needle, the ignition needle is arranged between the first fire tube and the second fire tube, the first fire tube is provided with a first ignition hole, the second fire tube is provided with a second ignition hole, the first ignition hole and the second ignition hole are symmetrical relative to the ignition needle, and the openings of the first ignition hole and the second ignition hole are both directed to the ignition needle.

6. The cooktop burner of claim 5, wherein The stove burner further comprises a thermocouple, the thermocouple is arranged between the first fire tube and the second fire tube, the first fire tube is provided with a first fire hole, the second fire tube is provided with a second fire hole, the first fire hole and the second fire hole are symmetrical relative to the thermocouple, and the openings of the first fire hole and the second fire hole are both directed to the thermocouple.

7. The cooktop burner of claim 6, wherein The ignition needle and the thermocouple are both located in the middle of the base and are respectively located on the two sides of the combustion tube.

8. Hob burner according to any one of claims 1-7, characterized in that An arc-shaped flow guide is arranged at a position opposite to the ejector pipe in the base, the flow guide protrudes towards the inside of the mixing chamber, the outlet of the airflow flow channel is directed to the flow guide, and the two vertical flow channels are respectively located on the two sides of the flow guide.

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