Burner with a dual-channel central gas channel structure

Abstract

An embodiment of the present invention discloses a burner with a dual-channel central gas channel structure, comprising: a first annular channel, wherein the bottom and top of the first annular channel are respectively provided with a first bottom through-hole and a top through-hole; and a second annular channel, wherein the second annular channel is disposed around the outside of the first annular channel and the bottom of the second annular channel is provided with a second bottom through-hole. By setting the first bottom through-hole smaller than the second bottom through-hole, the present invention ensures that the gas pressure and gas output at the first annular channel (i.e., the center) are smaller than those at the second annular channel, thereby achieving sufficient combustion of the gas at the center of the gas channel. Furthermore, the first bottom through-hole in the first annular channel is smaller than the top through-hole, resulting in an overall channel structure with a larger top and smaller bottom. This ensures that the gas and air entering the first annular channel are fully mixed, thereby further improving the combustion effect of the gas at the center, enhancing combustion energy efficiency, and achieving high load and low exhaust emissions.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen gas appliances, and in particular to a burner with a double-channel central gas channel structure. Background Art

[0002] A burner, also known as a gas stove, is a kitchen appliance that uses direct combustion to heat food using a gaseous fuel, such as liquefied petroleum gas (LPG), manufactured gas, or natural gas. Currently, burners on the market include burner heads and gas stoves, which combine gas and air for combustion, producing the ignition and heating cooking effect. With the advancement of society and science and technology, more and more burner products have entered the homes of ordinary people and are gaining widespread use.

[0003] However, the burners in the prior art have the following technical defects and deficiencies: the gas pressure and gas flow rate at the direct injection point of the central gas channel and the central side of the traditional burner burner are consistent, while when cooking curved pots, the direct injection point of the central gas channel is closer to the bottom of the pot, while the central side is farther away from the bottom of the pot, which can easily cause incomplete combustion of the gas at the direct injection point of the central gas channel. On the one hand, it will affect the cooking effect of the pot, and on the other hand, it will also make the flame in the center yellow, resulting in low gas combustion energy efficiency and high exhaust gas emissions.

[0004] Therefore, there is an urgent need in the prior art to invent a burner with sufficient combustion, high combustion energy efficiency and low exhaust gas emissions. Summary of the Invention

[0005] In order to overcome at least one of the defects described in the above-mentioned prior art, the present invention provides a burner with a dual-channel central gas channel structure. The burner with a dual-channel central gas channel structure has the characteristics of simple and reasonable structural design, sufficient gas combustion, high gas combustion energy efficiency and low exhaust gas emissions.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A burner with a dual-channel central gas channel structure, characterized in that it includes a dual-channel central gas channel structure, and the dual-channel central gas channel structure includes:

[0008] an annular channel, wherein the bottom and top of the annular channel are respectively provided with a first bottom through hole and a top through hole;

[0009] A second ring channel, the second ring channel is arranged around the outside of the first ring channel, and a second bottom through hole is provided at the bottom of the second ring channel;

[0010] Wherein, the size of the first bottom through hole is smaller than the size of the second bottom through hole;

[0011] Furthermore, the size of the top through hole is larger than that of the first bottom through hole, so that the annular channel has a channel structure with a small bottom and a large top.

[0012] It also includes a burner base, the middle part of which is provided with the double-channel central gas channel structure;

[0013] The burner base is further provided with a central cavity, and the central cavity is connected to the first ring channel and the second ring channel;

[0014] It also includes an outer ring gas channel structure, the outer ring gas channel structure includes an outer ring channel, and the outer ring channel is arranged on the outer peripheral side of the burner base;

[0015] The outer ring gas channel structure further includes an outer ring cavity, and the outer ring cavity is connected to the outer ring channel;

[0016] It also includes a central ejector pipe and an outer ring ejector pipe fixedly assembled and connected to the burner base, the central ejector pipe is connected to the dual-channel central gas channel structure, and the outer ring ejector pipe is connected to the outer ring gas channel structure;

[0017] Furthermore, the outer ring ejector tube is arranged away from the outer ring cavity so that the two do not interfere with each other.

[0018] Furthermore, a first arc-shaped side wall extending upward is provided in the central cavity.

[0019] Furthermore, the outer ring cavity is provided with a second arc-shaped side wall extending obliquely upward along the outer ring channel.

[0020] Furthermore, it also includes a gas diverter plate, which is arranged in the outer ring channel and corresponds to the outer ring cavity.

[0021] Furthermore, the connection portion of the central ejector tube, the outer ring ejector tube and the burner base is arranged in an area directly below the burner base.

[0022] Furthermore, the ends of the central ejector tube and the outer ring ejector tube are both provided with a mother-and-child groove, and the burner base is inserted into the mother-and-child groove to fix the central ejector tube, the outer ring ejector tube and the burner base together.

[0023] In summary, the burner with a dual-channel central gas channel structure provided by the present invention has at least the following technical effects compared to the prior art:

[0024] 1) In the burner provided by the present invention, which has a dual-channel central gas channel structure, the first bottom through-hole of the first annular channel is smaller than the second bottom through-hole of the second annular channel. This results in the gas pressure and gas output at the first annular channel (i.e., the center) being smaller than the gas pressure and gas output at the second annular channel, thereby achieving full combustion of the gas at the center of the gas channel.

[0025] 2) The burner provided by the present invention has a dual-channel central gas channel structure. By controlling the diameter of the first bottom through-hole, the ratio of the gas pressure and gas output in the first and second ring channels can be controlled. This makes the central gas channel structure adaptable to cookware of different curvatures and sizes, meeting the different user requirements.

[0026] 3) The burner provided by the present invention has a dual-channel central gas channel structure, in which the first bottom through-hole in a ring channel is smaller than the top through-hole, resulting in an overall channel structure with a larger top and smaller bottom. This ensures that the gas and air entering the ring channel are fully mixed, thereby further improving the combustion effect of the gas in the center, increasing its combustion energy efficiency, and reducing exhaust gas emissions.

[0027] 4) The burner provided by the present invention has a dual-channel central gas channel structure. The central cavity and the outer ring cavity provide a smooth transition between the central ejector pipe and the first and second ring channels, as well as between the outer ring ejector pipe and the outer ring channel, with a small rising gradient. This ensures thorough mixing of the gases and smoother gas flow, resulting in high load, high energy efficiency, and low exhaust emissions.

[0028] 5) The burner provided by the present invention has a dual-channel central gas channel structure, in which the connection between the ejector tube and the burner head seat is arranged in the area directly below the burner head seat, that is, within the diameter range of the burner head seat. This can effectively extend the length of the ejector tube, enhance the ejection performance, ensure that the gas and air flowing into the ejector tube can be fully mixed in the ejector tube, and enhance the gas mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a first structural schematic diagram of the burner of the present invention;

[0030] Figure 2 for Figure 1 AA cross-sectional schematic diagram shown;

[0031] Figure 3 This is a first structural schematic diagram of the burner base of the present invention;

[0032] Figure 4 This is a second structural schematic diagram of the burner base of the present invention;

[0033] Figure 5 is a second structural schematic diagram of the burner of the present invention;

[0034] Figure 6 Schematic diagram of the structure of the central ejector tube and the outer ring ejector tube of the present invention;

[0035] The meanings of the reference numerals are as follows:

[0036] 1. Burner base; 2. First ring channel; 21. First bottom through hole; 22. Top through hole; 3. Second ring channel; 31. Second bottom through hole; 4. Central cavity; 41. First arc-shaped side wall; 5. Outer ring channel; 6. Outer ring cavity; 61. Second arc-shaped side wall; 7. Central ejector tube; 8. Outer ring ejector tube; 9. Connecting part; 10. Mother-child groove; 11. Gas diverter. DETAILED DESCRIPTION

[0037] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] See also Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, a burner having a dual-channel central gas channel structure includes:

[0041] A ring channel 2 is provided with a first bottom through hole 21 and a top through hole 22 at the bottom and top of the ring channel 2 respectively.

[0042] The second-annular channel 3 is arranged around the outer side of the first-annular channel 2 , and a second bottom through hole 31 is provided at the bottom of the second-annular channel 3 .

[0043] In the technical solution of this embodiment, the size of the first bottom through-hole 21 is smaller than the size of the second bottom through-hole 31. Specifically, because the first bottom through-hole 21 of the first annular channel 2 is smaller than the second bottom through-hole 31 of the second annular channel 3, the gas pressure and gas output at the first annular channel 2 (i.e., the center of the central gas channel structure) are both lower than those at the second annular channel 3. This reduces the gas pressure and gas output at the first annular channel 2 (i.e., the center), allowing the gas near the center of the curved cookware to burn more fully and concentrate the combustion heat. This structural design improves the combustion efficiency of the gas at the center, enhancing the cooking effect of the cookware. Furthermore, the flame burns more fully at the center, improving the energy efficiency of the gas combustion, increasing the load, and reducing exhaust emissions.

[0044] Furthermore, by specifically setting the diameter of the first bottom through hole 21 of the first ring channel 2, the proportional size control of the first bottom through hole 21 and the second bottom through hole 31 can be achieved, that is, the proportional control of the gas pressure and gas output in the first ring channel 2 and the second ring channel 3 can be achieved, so that the central gas channel structure can be adapted to cookware of different curvatures, thereby meeting the different usage requirements of users.

[0045] Furthermore, in the technical solution of this embodiment, the size of the top through-hole 22 is larger than that of the first bottom through-hole 21, so that the single-ring channel 2 has a channel structure with a small bottom and a large top. Specifically, the overall design of the single-ring channel 2 with a large top and a small bottom ensures that the gas pressure and gas volume in the single-ring channel 2 are reduced while also ensuring that the gas and air entering the single-ring channel 2 are fully mixed, achieving two-ring one-control (i.e., extraction from the same central ejector pipe), further improving the combustion effect of the gas at the center, increasing its combustion energy efficiency, and reducing exhaust emissions.

[0046] See also Figure 2 As shown, in a further embodiment, the first bottom through hole 21 is a tapered hole, and the top opening of the tapered hole is larger than the bottom opening. In this further technical solution, by configuring the first bottom through hole 21 as a tapered hole with a smaller bottom and a larger top, a smooth transition from the bottom to the top of the first annular channel 2 can be achieved. While reducing the amount of gas entering the first annular channel 2 and lowering the gas pressure in the first annular channel 2, it also ensures that the gas and air entering the first annular channel 2 can be fully mixed in sufficient space, improving the combustion effect at the center of the central gas channel, achieving high combustion efficiency and low exhaust emissions.

[0047] Based on the same design concept, the present invention also provides an embodiment of a burner, which includes the dual-channel central gas channel structure described in the above embodiment.

[0048] See also Figure 1 and Figure 2 As shown, in the technical solution of this embodiment, the burner further includes a burner base 1, and the dual-channel central gas channel structure is arranged in the middle of the burner base 1 for heating the middle of the pot.

[0049] See also Figure 2 、 Figure 3 and Figure 5 As shown, in a further solution of this embodiment, the burner base 1 is further provided with a central cavity 4, which is connected to the first annular channel 2 and the second annular channel 3, and is provided with a first arc-shaped sidewall 41 extending upward. In this further technical solution, the central cavity 4 is provided with a first arc-shaped sidewall 41 that is connected to the first annular channel 2 and the second annular channel 3 and extends upward, that is, the central cavity 4 forms an arc transition, ensuring that the gas and air introduced from the central ejector pipe are more fully mixed, circulate more smoothly, and have a high load, thereby reducing the exhaust gas emissions generated by combustion.

[0050] See also Figure 1 and Figure 2 As shown, in a preferred embodiment of this embodiment, the burner further includes an outer ring gas channel structure, which includes an outer ring channel 5. The outer ring channel 5 is arranged on the outer periphery of the burner base 1. Specifically, the outer ring channel 5 of the outer ring gas channel structure is arranged on the outer periphery of the burner base 1, that is, it is arranged around the first ring channel 2 and the second ring channel 3, and is used to heat the outer side of the cookware.

[0051] See also Figure 3 、 Figure 4 and Figure 5 As shown, in a further embodiment, the outer ring gas channel structure further includes an outer ring cavity 6, which is connected to the outer ring channel 5 and has a second arc-shaped sidewall 61 extending obliquely upward along the outer ring channel 5. In prior art solutions, the outer ring ejector tube often interferes with the annular channel of the burner base, seriously affecting the ejection capacity of the outer ring ejector tube. Furthermore, the steep upward slope at the junction of the outer ring ejector tube and the annular channel easily causes the gas to rise directly, resulting in insufficient gas mixing and poor combustion. In this further solution, by disposing the outer ring cavity 6, which extends obliquely upward along the outer ring channel 5, between the outer ring ejector tube and the outer ring channel 5, a smooth transition is achieved between the outer ring ejector tube and the outer ring channel 5, preventing interference between the two. The gas rise gradient is reduced, improving the ejection capacity of the ejector tube and ensuring sufficient gas mixing. Furthermore, the outer ring cavity 6, which extends obliquely upward along the outer ring channel 5, facilitates the formation of a spiraling, annular upward spiral of the gas, further enhancing gas mixing and improving combustion efficiency.

[0052] See also Figure 1 As shown, in a further embodiment of the present invention, the burner further comprises a gas diverter 11, which is disposed in the outer ring channel 5 and corresponds to the outer ring cavity 6. Specifically, the gas diverter 11 disposed on the outer ring channel 5 and corresponding to the outer ring cavity 6 can block the gas in the vertical direction, preventing the gas flowing out of the outer ring cavity 6 from directly rising, thereby further ensuring that the gas flowing into the outer ring channel 5 from the outer ring cavity 6 forms a spiral annular rise. In addition, the gas diverter 11 can disturb and divert the gas, making the gas mixing more complete and the flame of the fire cover more uniform.

[0053] See also Figure 1 and Figure 5 As shown, in another embodiment of the present invention, the burner further includes a central ejector tube 7 and an outer ring ejector tube 8 fixedly assembled with the burner base 1. The central ejector tube 7 communicates with the dual-channel central gas channel structure, and the outer ring ejector tube 8 communicates with the outer ring gas channel structure. In the technical solution of this embodiment, the central ejector tube 7 is used to transport gas to the first and second ring channels 2 and 3, while the outer ring ejector tube 8 is used to transport gas to the outer ring channel 5. Both ejector tubes are used to inject gas and air, thereby thoroughly mixing the gas and air flows internally and achieving a good ejection effect. More specifically, the central ejector tube 7 communicates with the central cavity 4 of the dual-channel central gas channel structure, thereby transporting gas to the first and second ring channels 2 and 3 through the central cavity 4. The outer ring ejector tube 8 communicates with the outer ring cavity 6 of the outer ring gas channel structure, thereby transporting gas to the outer ring channel 5 through the outer ring cavity 6.

[0054] More specifically, the outer ring ejector tube 8 is positioned away from the outer ring cavity 6 to prevent interference between the two. This non-interference between the outer ring ejector tube 8 and the annular outer ring cavity 6 within the outer ring gas passage structure significantly improves the ejection capacity of the outer ring ejector tube 8, thereby ensuring a high load and high energy efficiency for the burner while reducing exhaust emissions.

[0055] See also Figure 5As shown, in the preferred technical solution of this embodiment, the connection 9 between the central ejector tube 7, the outer ring ejector tube 8, and the burner base 1 is located directly below the burner base 1. In prior art solutions, due to limited space, the connection between the conventional ejector tube and the burner base is located outside the diameter of the burner base. This results in a shorter ejector tube, inadequate mixing of the gas and air within the ejector tube, poor ejection performance, and poor gas mixing. In this preferred technical solution, the connection 9 between the central ejector tube 7, the outer ring ejector tube 8, and the burner base 1 (i.e., the fixed connection point between the two) is located directly below the burner base 1, i.e., within the diameter of the burner base 1. This effectively extends the length of the central ejector tube 7 and the outer ring ejector tube 8, enhances ejection performance, ensures that the gas and air flowing into the ejector tube are fully mixed within the ejector tube, and enhances the gas mixing effect.

[0056] See also Figure 6 As shown, in another preferred embodiment, the ends of the central ejector tube 7 and the outer ring ejector tube 8 are each provided with a sub-groove 10. The burner base 1 is inserted into the sub-groove 10 to securely assemble the central ejector tube 7, the outer ring ejector tube 8, and the burner base 1. In this preferred embodiment, the sub-groove 10 is a concave cavity of a certain depth, recessed inward at the ends of the central ejector tube 7 and the outer ring ejector tube 8. When assembling the central ejector tube 7, the outer ring ejector tube 8, and the burner base 1, the burner base 1 is aligned with the sub-groove 10 and inserted to complete the initial assembly of the three. External connecting components (such as bolts, screws, or screws) are then inserted through the central ejector tube 7 and the burner base 1, and the outer ring ejector tube 8 and the burner base 1, respectively, to complete the secure assembly of the central ejector tube 7 and the burner base 1, and the outer ring ejector tube 8 and the burner base 1. This results in a simple, rational structural design and easy operation.

[0057] In summary, the present invention provides a dual-channel central gas channel structure and a burner thereof, wherein the first bottom through hole 21 of the first ring channel 2 is smaller than the second bottom through hole 31 of the second ring channel 3, so that the gas pressure and gas output at the first ring channel 2 (i.e., the center) are smaller than the gas pressure and gas output at the second ring channel 3, thereby achieving full combustion of the gas at the center of the gas channel; further, by controlling the diameter of the first bottom through hole 21, the proportional control of the gas pressure and gas output in the first ring channel 2 and the second ring channel 3 can be achieved, so that the central gas channel structure can be adapted to cookware of different arc sizes to meet the different usage requirements of users; further, the first bottom through hole 21 in the first ring channel 2 is smaller than its top through hole 22, so that the overall channel structure has a large top and a small bottom, which can ensure that the gas and air entering the first ring channel 2 can be fully mixed, thereby further improving the combustion effect of the gas at the center, improving its combustion energy efficiency, and low exhaust gas emissions. Furthermore, the dual-channel central gas channel structure and its burner provided by the present invention, wherein the central cavity 4 and the outer ring cavity 6 are provided, can make a smooth transition between the central ejector tube 7 and the first ring channel 2, the second ring channel 3, and between the outer ring ejector tube 8 and the outer ring channel 5, with a small rising slope, thereby fully mixing the gas and making the gas flow smoother, with a large load, high energy efficiency and low exhaust gas emissions. In addition, by arranging the connection between the central ejector tube 7, the outer ring ejector tube 8 and the burner base 1 in the area directly below the burner base 1, that is, within the diameter range of the burner base 1, the present invention can effectively extend the length of the central ejector tube 7 and the outer ring ejector tube 8, enhance the ejection performance, ensure that the gas and air flowing into the ejector tube can be fully mixed in the ejector tube, and enhance the gas mixing effect.

[0058] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A burner with a dual-channel central gas channel structure, characterized in that: It includes a dual-channel central gas channel structure, and the dual-channel central gas channel structure includes: an annular channel, wherein the bottom and top of the annular channel are respectively provided with a first bottom through hole and a top through hole; A second ring channel, the second ring channel is arranged around the outside of the first ring channel, and a second bottom through hole is provided at the bottom of the second ring channel; Wherein, the size of the first bottom through hole is smaller than the size of the second bottom through hole; Furthermore, the size of the top through hole is larger than that of the first bottom through hole, so that the annular channel has a channel structure with a small bottom and a large top; It also includes a burner base, the middle part of which is provided with the double-channel central gas channel structure; The burner base is further provided with a central cavity, and the central cavity is connected to the first ring channel and the second ring channel; It also includes an outer ring gas channel structure, the outer ring gas channel structure includes an outer ring channel, and the outer ring channel is arranged on the outer peripheral side of the burner base; The outer ring gas channel structure further includes an outer ring cavity, and the outer ring cavity is connected to the outer ring channel; It also includes a central ejector pipe and an outer ring ejector pipe fixedly assembled and connected to the burner base, the central ejector pipe is connected to the dual-channel central gas channel structure, and the outer ring ejector pipe is connected to the outer ring gas channel structure; Furthermore, the outer ring ejector tube is arranged away from the outer ring cavity so that the two do not interfere with each other.

2. The burner with a dual-channel central gas channel structure according to claim 1, characterized in that: The first bottom through hole is a tapered hole, and a top opening of the tapered hole is larger than a bottom opening thereof.

3. The burner with a dual-channel central gas channel structure according to any one of claims 1 to 2, characterized in that: The central cavity is provided with a first arc-shaped side wall extending upward.

4. The burner with a dual-channel central gas channel structure according to any one of claims 1 to 2, characterized in that: The outer ring cavity is provided with a second arc-shaped side wall extending obliquely upward along the outer ring channel.

5. The burner with a dual-channel central gas channel structure according to claim 4, characterized in that: It also includes a gas diverter plate, which is arranged in the outer ring channel and corresponds to the outer ring cavity.

6. The burner with a dual-channel central gas channel structure according to claim 5, characterized in that: The connection portion between the central ejector tube, the outer ring ejector tube and the burner base is arranged in a region directly below the burner base.

7. The burner with a dual-channel central gas channel structure according to claim 5, characterized in that: The ends of the central ejector tube and the outer ring ejector tube are both provided with mother-and-child grooves, and the burner head seat is inserted into the mother-and-child grooves so that the central ejector tube, the outer ring ejector tube and the burner head seat are fixedly assembled and connected together.

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