A heater having a hollow inner and outer firing tray and multiple ejector tubes

Abstract

This utility model relates to the technical field of heaters, and more particularly to a heater with hollow inner and outer ignition plates and multiple ejector tubes. Both the burner head cover and the burner head lower cover have hollow structures in the middle. When the burner head cover and the burner head lower cover are combined, the outer ring of their combination forms an outer ring of flame holes, and the hollow inner ring of their combination forms an inner ring of flame holes. The burner head cover and the burner head lower cover are fixedly connected to form a hollow burner head assembly. The first and second ejector tubes have a hollow pipe structure, which significantly reduces the combustion chamber space of the gas heater burner head and optimizes the gas and air mixing path, improving the mixing ratio control accuracy and combustion efficiency. Simultaneously, it enhances external flame stability, significantly improves wind resistance, reduces the risk of backfire, and the added internal flame holes increase the product's power, further improving thermal efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of heaters, and in particular to a heater having a hollow inner and outer ignition plate and multiple ejector tubes. Background Technology

[0002] In existing gas heater technology, the burner head generally adopts a two-piece ignition plate structure. This design results in a large furnace cavity space, a long mixing path between gas and air, and a lack of effective guidance, making it difficult to precisely control the mixing ratio. During combustion, uneven mixing can easily lead to localized rich or lean combustion, resulting in low combustion efficiency. At the same time, the flame stability is poor, making it highly susceptible to external wind interference, which can cause safety hazards such as backfire or flameout. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a heater with a hollow inner and outer ignition plate and multiple ejector tubes. This design significantly reduces the combustion chamber space of the gas heater burner and optimizes the gas-air mixing path, thereby improving the accuracy of the mixing ratio control and increasing combustion efficiency. At the same time, it enhances external flame stability, significantly improves wind resistance, reduces the risk of backfire, and the added internal flame holes can increase the product's power, further improving thermal efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: It includes a heater combustion section, and a hollow ignition plate is provided inside the heater combustion section; the hollow ignition plate consists of a burner head cover, a burner head lower cover, a first ejector tube, and a second ejector tube; both the burner head cover and the burner head lower cover have a hollow structure in the middle; after the burner head cover and the burner head lower cover are combined, the outer ring of their combination forms an outer ring of fire holes, and the hollow inner ring of their combination forms an inner ring of fire holes; the burner head cover and the burner head lower cover are fixedly connected to form a hollow burner head assembly; the first ejector tube and the second ejector tube are hollow pipes, and the first ejector tube and the second ejector tube respectively pass through the burner head lower cover to the interior of the burner head assembly; the first ejector tube and the second ejector tube are fixedly connected to the burner head lower cover, and the gas passes through the first ejector tube and the second ejector tube to reach the interior of the burner head assembly.

[0005] Furthermore, an air inlet is provided on the surface of the first ejector tube.

[0006] Furthermore, an air inlet is provided on the surface of the second ejector tube.

[0007] Furthermore, the hollow ignition plate is also provided with a base, the pipes of the first ejector tube and the second ejector tube pass through the base and are fixed on the base, and the hollow ignition plate is fixed on the burner part of the heater through the base.

[0008] Furthermore, the heater combustion unit is fixed above the gas cylinder chamber via a fixing pipe.

[0009] Furthermore, a controller is also provided on the combustion section of the heater, and the controller is located below the hollow ignition plate.

[0010] Furthermore, a heater base is also provided below the gas cylinder chamber.

[0011] The device includes a heater combustion section and a hollow ignition plate inside the combustion section. The hollow ignition plate consists of a burner head cover, a burner head bottom cover, a first ejector tube, and a second ejector tube. Both the burner head cover and the burner head bottom cover have a hollow structure in the middle. When the burner head cover and the burner head bottom cover are assembled, the outer ring of their combined structure forms an outer ring of flame holes, and the hollow inner ring of their combined structure forms an inner ring of flame holes. The burner head cover and the burner head bottom cover are fixedly connected to form a hollow burner head assembly. The first ejector tube and the second ejector tube are hollow conduits. The first and second ejector tubes pass through the lower cover of the burner head and are fixedly connected to the lower cover of the burner head. The gas passes through the first and second ejector tubes to reach the interior of the burner head assembly. This structure can significantly reduce the furnace cavity space of the gas heater burner head and optimize the gas and air mixing path, thereby improving the mixing ratio control accuracy and combustion efficiency. At the same time, the external flame stability is enhanced, the wind resistance is significantly improved, the risk of backfire is reduced, and the added internal flame holes can increase the power of the product, further improving the thermal efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the combustion section of the heater according to this utility model;

[0015] Figure 3 This is a schematic diagram of the hollow ignition plate of this utility model;

[0016] Figure 4 This is an exploded view of the hollow ignition plate of this utility model;

[0017] Figure label:

[0018] 1. Combustion section of heater; 2. Hollow ignition plate; 3. Outer ring ignition hole 2-1; 4. Inner ring ignition hole 2-2; 5. Burner head cover; 6. First ejector tube; 7. Second ejector tube; 8. Base; 9. Heater base; 10. Fixing pipe; 11. Gas cylinder chamber; 12. Controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] A heater with hollow inner and outer ignition plates and multiple ejector tubes, such as Figures 1-4 As shown, the device includes a heater combustion section 1 and a hollow ignition plate 2 disposed within the heater combustion section 1. The hollow ignition plate 2 consists of a burner head cover 3, a burner head lower cover 4, a first ejector tube 5, and a second ejector tube 6. Both the burner head cover 3 and the burner head lower cover 4 have a hollow structure in the middle. When the burner head cover 3 and the burner head lower cover 4 are combined, the outer ring of the combination forms an outer ring fire hole 2-1, and the hollow inner ring of the combination forms an inner ring fire hole 2-2. The burner head cover 3 and the burner head lower cover 4 are fixedly connected to form a hollow burner head assembly. The first ejector tube 5 and the second ejector tube 6 are hollow pipes. The first ejector tube 5 and the second ejector tube 6 pass through the burner head lower cover 4 to the inside of the burner head assembly. The first ejector tube 5 and the second ejector tube 6 are fixedly connected to the burner head lower cover 4, and the gas passes through the first ejector tube 5 and the second ejector tube 6 to reach the inside of the burner head assembly.

[0022] Specifically, the burner head cover 3 and burner head lower cover 4 are combined through a hollow structure to form independent inner and outer flame holes, dividing the combustion area into outer ring flame holes 2-1 and inner ring flame holes 2-2. This achieves regional gas and air mixing, which reduces the spatial volume of a single combustion zone compared to a traditional single-layer ignition plate. This allows for precise control of the mixing ratio in each area, reducing the risk of backfire due to excessive or insufficient air. The first ejector tube 5 and the second ejector tube 6 are independently connected to the inside of the burner head assembly, allowing for differentiated gas flow to the inner and outer flame holes. This enables dynamic adjustment of the gas supply ratio under different ambient wind speeds, ensuring the stability of the outer ring flame in strong winds and avoiding overall backfire due to uneven gas supply from a single ejector tube. The upper and lower covers are fixedly connected to form a closed hollow cavity. After the gas enters through the ejector tube, it needs to diffuse fully within the cavity before being ejected and burned through the flame holes. This extends the premixing time of the gas within the cavity. At the same time, the cavity wall restricts disorderly air flow, further improving mixing uniformity and reducing backfire caused by local mixing imbalance.

[0023] As a preferred embodiment of the above, such as Figures 1-4 As shown, the surface of the first ejector tube 5 has an air inlet.

[0024] As a preferred embodiment of the above, such as Figures 1-4 As shown, the second ejector tube 6 has an air inlet opening on its surface.

[0025] Specifically, by opening air intake openings on the surfaces of the first ejector tube 5 and the second ejector tube 6, the gas is drawn into the air in stages as it flows through the ejector tubes. Compared with the traditional single-point ejection, this achieves progressive premixing, significantly improving the uniformity of gas-air mixing and avoiding backfire caused by excessively high local concentrations in the combustion head assembly due to insufficient mixing. When strong winds cause pressure fluctuations around the combustion section 1, the air intake openings on the surfaces of the first ejector tube 5 and the second ejector tube 6 can automatically adjust the air intake through the Venturi effect, achieving dynamic balance of the mixing ratio without the need for external control devices. This avoids the overmixing or undermixing problems caused by the fixed air intake in traditional structures.

[0026] As a preferred embodiment of the above, such as Figures 1-4 As shown, the hollow ignition plate 2 is also provided with a base 7. The pipes of the first ejector tube 5 and the second ejector tube 6 pass through the base 7 and are fixed on the base 7. The hollow ignition plate 2 is fixed on the heater combustion part 1 through the base 7.

[0027] Specifically, the first ejector tube 5 and the second ejector tube 6 pass through the base 7 and are fixed thereon to form a double-stage anchoring, which effectively suppresses the micro-displacement of the pipeline caused by strong winds or vibrations, and avoids gas leakage or mixture ratio shift caused by mechanical stress at the connection between the first ejector tube 5 and the second ejector tube 6 and the combustion head assembly.

[0028] As a preferred embodiment of the above, such as Figures 1-4 As shown, the heater combustion section 1 is fixed above the gas cylinder chamber 10 by a fixing pipe 9.

[0029] Specifically, the vertical layout significantly reduces the overall footprint of the equipment, making it particularly suitable for space-constrained scenarios. At the same time, the fixed pipe 9, as a rigid connection, reduces the redundant length of the gas pipeline and lowers the risk of gas leakage.

[0030] As a preferred embodiment of the above, such as Figures 1-4 As shown, a controller 11 is also provided on the combustion section 1 of the heater, and the controller 11 is located below the hollow ignition plate 2.

[0031] As a preferred embodiment of the above, such as Figures 1-4 As shown, a heater base 8 is also provided below the gas cylinder chamber 10.

[0032] Specifically, the controller 11 is located below the hollow ignition plate 2 to control the opening and closing of the heater combustion section 1. The area below the hollow ignition plate 2 is usually at a lower temperature, and the controller 11 is far away from the high-temperature combustion area, reducing the interference of heat radiation on electronic components and significantly improving the stability and service life of the controller. At the same time, the appropriate height also makes it easy to adjust parameters such as power and temperature. The heater base 8 can also improve the stability of the device on smooth ground by increasing the contact area or integrating anti-slip pads, reducing the risk of accidental tipping.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heater having a hollow inner and outer ignition plate and multiple ejector tubes, characterized in that: It includes a heater combustion section (1) and a hollow ignition plate (2) provided inside the heater combustion section (1); The hollow ignition plate (2) consists of a burner head cover (3), a burner head lower cover (4), a first ejector tube (5), and a second ejector tube (6); Both the burner head cover (3) and the burner head lower cover (4) have a hollow structure in the middle. After the burner head cover (3) and the burner head lower cover (4) are combined, the outer ring of the combination forms an outer ring fire hole (2-1), and the hollow inner ring of the combination forms an inner ring fire hole (2-2). The burner head cover (3) and the burner head lower cover (4) are fixedly connected to form a hollow burner head assembly. The first ejector tube (5) and the second ejector tube (6) are hollow pipes. The first ejector tube (5) and the second ejector tube (6) pass through the lower cover (4) of the burner head to the inside of the burner head assembly. The first ejector tube (5) and the second ejector tube (6) are fixedly connected to the lower cover (4) of the burner head. The gas passes through the first ejector tube (5) and the second ejector tube (6) to reach the inside of the burner head assembly.

2. A heater with a hollow inner and outer ignition plate and multiple ejector tubes according to claim 1, characterized in that, An air inlet is provided on the surface of the first ejector tube (5).

3. A heater with a hollow inner and outer ignition plate and multiple ejector tubes according to claim 1, characterized in that, The second ejector tube (6) has an air inlet on its surface.

4. A heater with a hollow inner and outer ignition plate and multiple ejector tubes according to claim 1, characterized in that, The hollow ignition plate (2) is also provided with a base (7), the pipes of the first ejector tube (5) and the second ejector tube (6) pass through the base (7) and are fixed on the base (7), and the hollow ignition plate (2) is fixed on the heater combustion part (1) through the base (7).

5. A heater with a hollow inner and outer ignition plate and multiple ejector tubes according to claim 1, characterized in that, The heater combustion unit (1) is fixed above the gas cylinder chamber (10) by a fixing pipe (9).

6. A heater with a hollow inner and outer ignition plate and multiple ejector tubes according to claim 5, characterized in that, The heater combustion section (1) is also equipped with a controller (11), which is located below the hollow ignition plate (2).

7. A heater with a hollow inner and outer ignition plate and multiple ejector tubes according to claim 6, characterized in that, A heater base (8) is also provided below the gas cylinder chamber (10).

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