A burner and gas stove

Abstract

The utility model discloses a burner, including the center casing that forms with inner gas cavity, the peripheral casing that surrounds in the periphery of center casing and forms with outer gas cavity, the bottom of peripheral casing is connected with at least two peripheral ejector pipes with consistent rotation posture and the peripheral spacing of each other on the circumference, and the head of peripheral ejector pipe forms the peripheral air inlet, the bottom of center casing is connected with a center ejector pipe, and the part of center ejector pipe extends to the range of peripheral casing, and its head in the range of peripheral casing forms center air inlet, and the baffle is arranged between center air inlet and the peripheral air inlet closest to it, and the shape and extension posture of baffle are suitable for preventing center air inlet and the peripheral air inlet closest to it from snatching the air that can be inhaled between them. The utility model discloses a gas stove with the burner. The utility model has the advantages of avoiding the center ejector pipe and the peripheral ejector pipe from snatching the air that can be inhaled.

Description

Technical Field

[0001] This utility model relates to a burner and a gas stove, and is an optimized design for the injector tube of the burner to seize the intake air. Background Technology

[0002] The burner, suitable for cooking, has a central ejector tube connected to the bottom center and multiple (usually two) peripheral ejector tubes connected to the periphery. These ejector tubes draw in surrounding air through the negative pressure created by the high-speed injected gas jet. After the gas and air are mixed, they enter the inner and outer gas chambers of the burner for combustion.

[0003] However, in the existing technology, the central ejector tube and the peripheral ejector tubes compete for air intake, resulting in insufficient air intake in the central ejector tube, leading to incomplete combustion, yellow flame, and excessive carbon monoxide emissions. At the same time, the competition for air will generate turbulence, resulting in poor air intake efficiency of the central ejector tube and the peripheral ejector tubes. Utility Model Content

[0004] The purpose of this invention is to provide a burner and a gas stove that can prevent the central ejector tube and the peripheral ejector tube from competing for the air that can be drawn in.

[0005] This utility model is achieved through the following technical solution.

[0006] A burner includes a central shell having an internal combustion chamber and an outer shell surrounding the central shell and having an external combustion chamber. At least two outer ejector tubes having the same extension direction relative to their center and spaced apart from each other in the circumferential direction are connected to the bottom of the outer shell. The head end of the outer ejector tube forms an outer air inlet. A central ejector tube is connected to the bottom of the central shell. A portion of the central ejector tube extends into the range of the outer shell, and its head end within the range of the outer shell forms a central air inlet.

[0007] And a baffle is arranged between the central air intake and the nearest peripheral air intake, and the shape and extension of the baffle are adapted to prevent the central air intake and the nearest peripheral air intake from competing for the air that can be drawn in between.

[0008] As a further improvement of this utility model, the arrangement of the partition makes its distance from the central air inlet closer than the distance from the corresponding peripheral air inlets.

[0009] As a further improvement of this utility model, the partition is connected to the part of the central ejector tube located at the bottom of the central housing, and the connection part is the side of this part facing the nearest peripheral air inlet.

[0010] As a further improvement of this utility model, there is a gap between the upper edge of the central air inlet and the bottom of the outer casing, which is suitable for expanding the capture range of the central air inlet for the intake air.

[0011] As a further improvement of this utility model, there is a gap between the portion of the peripheral ejector tube extending into the peripheral housing and the bottom of the peripheral housing, which is suitable for expanding the flow range of air near the central air inlet.

[0012] As a further improvement of this utility model, the partition is connected to the bottom of the outer shell.

[0013] As a further improvement of this utility model, the partition is integrally connected with the outer ejector tube and the outer shell.

[0014] As a further improvement of this utility model, two peripheral ejector tubes are arranged, and the air intake directions of the peripheral air inlets of the two peripheral ejector tubes are opposite.

[0015] As a further improvement of this utility model, the central air inlet and the outermost air inlet closest to it have the same air intake direction, and their relative positions are arranged such that they are spaced apart from each other in the air intake direction, with the central air inlet in front and the outermost air inlet closest to it behind.

[0016] A gas stove, including a burner.

[0017] The beneficial effects of this utility model are:

[0018] The baffle, through its blocking function, avoids the problem of insufficient air intake at the central air intake, and prevents yellow flame and incomplete combustion caused by insufficient mixing of gas and air in the internal combustion chamber; at the same time, the baffle eliminates air turbulence caused by air grabbing, significantly improving the air intake efficiency of the central air intake and the peripheral air intake. Attached Figure Description

[0019] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0020] Figure 1 This is a schematic diagram of the burner from one perspective;

[0021] Figure 2 This is a schematic diagram of the burner from another perspective. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0023] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0024] Implementation Case 1:

[0025] This embodiment illustrates a burner that improves upon existing technologies to address issues such as air turbulence caused by competition for air between the central ejector tube and the nearest peripheral ejector tube, insufficient air intake efficiency, and incomplete combustion of gas resulting in a yellow flame.

[0026] The burner in this implementation case refers to... Figure 1 and Figure 2 The device includes a central housing 11 with an internal combustion chamber and a peripheral housing 12 surrounding the central housing 11 and having an external combustion chamber. At least two peripheral ejector tubes 22, extending in the same direction relative to their center and spaced apart circumferentially, are connected to the bottom of the peripheral housing 12. The head end of each peripheral ejector tube 22 forms a peripheral air inlet 221 for drawing in air. A central ejector tube 21 is connected to the bottom of the central housing 11. Since the central ejector tube 21 needs to be of sufficient length to ensure its ejection performance, a portion of the central ejector tube 21 extends into the peripheral housing 12, with its head end within the peripheral housing 12 forming a central air inlet 211, such that the central air inlet 211 and one of the peripheral air inlets 221 are relatively close. To address the air competition problem, the burner in this embodiment also includes a baffle 3, which is positioned between the central air inlet 211 and its closest peripheral air inlet 221. The shape and extension of the baffle 3 effectively prevent the central air inlet 211 and its closest peripheral air inlet 221 from competing for the air that can be drawn in between. This arrangement ensures that both the peripheral ejector tube 22 and the central ejector tube 21 receive sufficient air supply. Since the peripheral ejector tube 22 is larger than the central ejector tube 21, and the peripheral air inlet 221 is significantly larger than the central air inlet 211, the baffle 3 prevents insufficient air intake at the central air inlet 211, thus preventing yellow flames and incomplete combustion caused by insufficient mixing of combustion gas and air in the internal combustion chamber. Simultaneously, the baffle 3 eliminates air turbulence caused by air competition, significantly improving the air intake efficiency of the central air inlet 211 and the peripheral air inlet 221.

[0027] In this embodiment, the arrangement of baffle 3 is specially optimized so that its distance from the central air inlet 211 is closer than that from the corresponding peripheral air inlet 221. This arrangement takes into account the fact that the air supply requirement of the peripheral ejector 22 is greater than that of the central ejector 21, and the closer position of baffle 3 to the central air inlet 211 optimizes the air distribution effect. The characteristic of the peripheral ejector 22 requiring a larger air volume is balanced by this distance setting, ensuring that the central ejector 21 receives sufficient air supply while the peripheral ejector 22 can also efficiently draw in the required air, thereby optimizing the overall air supply of the burner.

[0028] In this embodiment, the baffle 3 is directly connected to the portion of the central ejector tube 21 located at the bottom of the central housing 11, specifically on the side of this portion facing the nearest peripheral air inlet 221. This connection method, as the optimal solution, has multiple advantages. The baffle 3, fixed to the side of the central ejector tube 21, forms a precisely positioned physical barrier, ensuring it is always in the optimal blocking position. Because it is directly connected to the central ejector tube 21, the baffle 3 requires no additional support structure, simplifying the overall design while enhancing structural stability, maintaining reliable performance even under burner operating vibration conditions.

[0029] In this embodiment, there is a gap between the upper edge of the central air inlet 211 and the bottom of the outer casing 12. This gap is specifically achieved by reducing the arrangement height of the central ejector tube 21. This arrangement effectively reduces the obstruction effect of the outer casing 12 on the intake of the central air inlet 211 and expands the capture range of the intake air by the central air inlet 211. When air flows from the circumference and top to the central air inlet 211, there is no physical obstruction formed by the bottom of the outer casing 12, which significantly improves the intake efficiency of the central air inlet 211 and ensures that the internal combustion chamber receives a sufficient air supply.

[0030] In this embodiment, further, given the spacing between the upper edge of the central air inlet 211 and the bottom of the outer casing 12, a spacer r is designed between the portion of the outer ejector tube 22 extending into the outer casing 12 and the bottom of the outer casing 12, allowing free airflow. This spacer r expands the airflow range near the central air inlet 211, making the central air inlet 211 circumferentially open. The reduced space constraints around the central air inlet 211 allow it to capture air from more directions, particularly enhancing circumferential airflow efficiency, thereby comprehensively improving the intake efficiency of the central air inlet 211.

[0031] In this embodiment, the partition 3 is connected to the bottom of the outer shell 12. This connection method is based on the spacer r between the outer ejector tube 22 and the bottom of the outer shell 12. Fixing the partition 3 to the bottom of the outer shell 12 can effectively improve the structural strength of the outer ejector tube 22. As a slender tubular structure, the outer ejector tube 22 gains additional support through the connection between the partition 3 and the outer shell 12, reducing the risk of vibration and deformation. At the same time, the partition 3 itself acts as a reinforcing rib structure, enhancing the overall mechanical rigidity and stability of the outer shell 12.

[0032] In this embodiment, the partition 3, the peripheral ejector tube 22, and the peripheral housing 12 are integrally connected, forming a single, integral component through casting or injection molding. This integrated manufacturing process significantly simplifies the production process, reduces the number of parts and assembly steps, and lowers manufacturing costs and potential points of failure. The one-piece structure eliminates connection gaps, improving sealing performance while ensuring that the partition 3 maintains its precise position during long-term use, continuously fulfilling its air isolation function.

[0033] In this embodiment, two peripheral ejector tubes 22 are arranged circumferentially, with their peripheral air inlets 221 facing opposite directions. This arrangement maximizes the use of air resources around the bottom of the burner, and the two opposite intake directions create a complementary effect, covering a larger air capture area. By eliminating intake dead zones, the overall air supply efficiency is optimized, ensuring a sufficient and balanced air supply to the peripheral combustion chamber.

[0034] In this embodiment, the central air inlet 211 and its closest peripheral air inlet 221 share the same intake direction, with their relative positions arranged such that the central air inlet 211 is in front and the peripheral air inlet 221 is behind. This staggered arrangement along the intake direction is an optimized design for the overall intake process. The central air inlet 211, positioned in front, prioritizes air intake, avoiding direct competition with the peripheral air inlet 221 behind it. The intake actions in the same direction create a synergistic effect, reducing airflow interference and improving the stability and overall efficiency of air intake.

[0035] Implementation Case 2:

[0036] This embodiment illustrates a gas stove, including the burner shown in the embodiment. The gas stove in this embodiment uses the aforementioned burner as its core combustion component. By integrating this burner, which is equipped with a baffle 3 and optimized in various aspects, the overall performance of the gas stove is improved, effectively solving the air interception problem, ensuring complete combustion of gas without yellow flame, and enhancing both thermal efficiency and safety.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A burner, characterized in that, The system includes a central housing (11) having an internal combustion chamber and an outer housing (12) surrounding the central housing (11) and having an external combustion chamber. The bottom of the outer housing (12) is connected to at least two outer ejector tubes (22) that have the same extension direction relative to their center and are circumferentially spaced apart from each other. The head end of the outer ejector tubes (22) forms an outer air inlet (221). The bottom of the central housing (11) is connected to a central ejector tube (21). A portion of the central ejector tube (21) extends into the range of the outer housing (12), and its head end located within the range of the outer housing (12) forms a central air inlet (211). And a partition (3) is arranged between the central air inlet (211) and the peripheral air inlet (221) closest to it, and the shape and extension posture of the partition (3) are adapted to prevent the central air inlet (211) and the peripheral air inlet (221) closest to it from competing for the air that can be drawn in between.

2. The burner according to claim 1, characterized in that, The partition (3) is positioned such that it is closer to the central air inlet (211) than to the corresponding peripheral air inlet (221).

3. The burner according to claim 2, characterized in that, The partition (3) is connected to the portion of the central ejector tube (21) located at the bottom of the central housing (11), with the connection point being the side of this portion facing the nearest peripheral air inlet (221).

4. The burner according to claim 3, characterized in that, There is a gap between the upper edge of the central air inlet (211) and the bottom of the outer housing (12), which is suitable for expanding the capture range of the central air inlet (211) for the intake air.

5. The burner according to claim 4, characterized in that, The portion of the peripheral ejector tube (22) extending into the peripheral housing (12) and the bottom of the peripheral housing (12) have a gap (r) that is adapted to expand the flow range of air near the central air inlet (211).

6. The burner according to claim 5, characterized in that, The partition (3) is connected to the bottom of the outer casing (12).

7. The burner according to claim 6, characterized in that, The partition (3) is integrally connected to the peripheral ejector tube (22) and the peripheral housing (12).

8. The burner according to any one of claims 1-7, characterized in that, The peripheral ejector tubes (22) are arranged in two, and the peripheral air inlets (221) of the two peripheral ejector tubes (22) have opposite air intake directions.

9. The burner according to claim 8, characterized in that, The central air inlet (211) and the peripheral air inlet (221) closest to it have the same air intake direction. Their relative positions are arranged such that they are spaced apart from each other in the air intake direction, with the central air inlet (211) in front and the peripheral air inlet (221) closest to it behind.

10. A gas stove, characterized in that, Includes the burner according to any one of claims 1-9.

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