Infrared gas appliance

Abstract

The utility model belongs to infrared burner technical field, specifically disclose infrared gas equipment, including infrared combustion panel, furnace end and first injection pipe, the central cavity and the outer ring cavity that is arranged in the circumference of central cavity are formed in furnace end, infrared combustion panel installs at the top of central cavity and outer ring cavity, infrared gas equipment still includes gas distribution disc, gas distribution disc sets up in outer ring cavity and will outer ring cavity divide into first premixing chamber and second premixing chamber that set up in upper and lower, second premixing chamber and first premixing chamber are located respectively in the upside and downside of gas distribution disc, the gas outlet end of first injection pipe is communicated in first premixing chamber, gas distribution disc is provided with a plurality of flow guide holes, first premixing chamber and second premixing chamber are interconnected through flow guide hole, the volume of second premixing chamber is less than the volume of first premixing chamber. The utility model discloses infrared gas equipment can reduce the risk of recalescence of infrared combustion panel and the deflagration caused by recalescence, improve the use safety of infrared gas equipment.

Description

Technical Field

[0001] This utility model relates to the field of infrared burner technology, and in particular to infrared gas equipment. Background Technology

[0002] An infrared cooktop is a gas stove that uses infrared radiation to heat cookware. It employs an infrared radiating plate as the combustion radiator. The gas and air mixture enters the tiny pores of the infrared radiating plate and burns. The high temperature generated by combustion causes the entire infrared radiating plate to glow brightly, and the heat is transferred to the cookware through infrared radiation. It has advantages such as high thermal efficiency and fast heating speed. Current technology provides an infrared cooktop with concentrically arranged outer and inner ring mixing chambers within the burner head. These chambers supply the combustion mixture to different areas of the infrared radiating plate via outer and inner ring ejector tubes, respectively. The outer ring mixing chamber has a larger volume, holding more of the mixture. This preheating of the mixture within the outer ring mixing chamber results in faster combustion within the tiny pores of the infrared radiating plate. However, the larger volume of the outer ring mixing chamber results in a lower gas flow velocity to the infrared radiating plate, making it prone to backfire. If the backfire flame enters the outer ring mixing chamber, it can cause deflagration, affecting safety. Utility Model Content

[0003] The technical problem solved by this utility model is to provide an infrared gas device that can solve the problem that the large volume of the outer ring mixing chamber of existing infrared gas devices can easily lead to backfire and deflagration of the infrared radiation plate, affecting the safety of use.

[0004] The above-mentioned technical problems are solved by the following technical solutions:

[0005] An infrared gas-fired device is provided, comprising an infrared combustion plate, a burner head, and a first injector tube. The burner head has a central cavity and an outer annular cavity surrounding the central cavity. The infrared combustion plate is mounted on top of the central cavity and the outer annular cavity. The infrared gas-fired device also includes a gas distribution plate, which is disposed within the outer annular cavity and divides the outer annular cavity into a first premixing cavity and a second premixing cavity, which are disposed vertically. The second premixing cavity and the first premixing cavity are located on the upper and lower sides of the gas distribution plate, respectively. The gas outlet end of the first injector tube is connected to the first premixing cavity. The gas distribution plate has multiple guide holes, and the first premixing cavity and the second premixing cavity are interconnected through the guide holes. The volume of the second premixing cavity is smaller than the volume of the first premixing cavity.

[0006] The infrared gas generator of this invention, compared with the prior art, has the following advantages: The infrared gas generator has a gas distribution plate, which is disposed within an outer annular cavity and divides the outer annular cavity into a first premixing cavity and a second premixing cavity, positioned vertically. The second premixing cavity and the first premixing cavity are located on the upper and lower sides of the gas distribution plate, respectively. The outlet end of the first ejector tube is connected to the first premixing cavity. The gas distribution plate has multiple guide holes, and the first and second premixing cavities are interconnected through these guide holes. The volume of the second premixing cavity is smaller than that of the first premixing cavity. The mixed gas flowing out from the outlet end of the first ejector tube first enters the first premixing cavity for preliminary mixing; then, it enters the second premixing cavity through the multiple guide holes of the gas distribution plate for secondary premixing, and finally flows into the micropores of the infrared combustion plate. Due to the separation of the gas distribution plate, the volume of the second premixing chamber is smaller than that of the first premixing chamber. The second premixing chamber contains less mixed gas, so less mixed gas is preheated, which helps to reduce the combustion speed of the infrared combustion plate. Moreover, the smaller volume of the second premixing chamber helps to increase the gas flow rate to the infrared combustion plate, reduce the risk of backfire, and avoid deflagration caused by backfire flames entering the second premixing chamber in reverse, thus improving the safety of infrared gas equipment.

[0007] In one embodiment, the infrared combustion plate is a ceramic plate, and the ceramic plate has a plurality of micropores inside, wherein the sum of the pore areas of the plurality of flow guide holes is less than the sum of the pore areas of the plurality of micropores.

[0008] In one embodiment, the air distribution plate has multiple grooves, and the multiple grooves and multiple guide holes correspond one-to-one, with the guide holes being formed on the sidewalls of the grooves.

[0009] In one embodiment, the plurality of said grooves are arranged radially around the center of the air distribution plate, and the sidewalls extend radially along the air distribution plate; and / or,

[0010] The sidewall extends toward the first premixing cavity to form the groove.

[0011] In one embodiment, the infrared gas device further includes a support cylinder disposed inside the burner head, the support cylinder forming the central cavity inside the support cylinder, the gas distribution plate surrounding and connected to the outer periphery of the support cylinder, and the support cylinder, the burner head, and the gas distribution plate mutually surrounding each other to form the first premixing cavity.

[0012] In one embodiment, the support cylinder is disposed below the gas distribution plate, and the infrared gas device further includes a diversion plate and an ignition needle. The diversion plate is disposed above the gas distribution plate and between the gas distribution plate and the infrared combustion plate. The ignition needle is disposed on the periphery of the infrared combustion plate. A diversion cavity is formed in the diversion plate. One end of the diversion cavity is connected to the central cavity, and the other end extends toward the ignition needle.

[0013] In one embodiment, the drainage plate includes a base plate with a through-hole communicating with the central cavity. The base plate partially blocks the drainage hole, and the drainage plate is configured to seal and isolate the drainage cavity and the first premixing cavity; and / or,

[0014] The drainage plate has a teardrop-shaped cross-section along the horizontal direction, with its tip pointing towards the ignition needle.

[0015] In one embodiment, the inner peripheral wall of the burner head has a radially protruding mounting step, the flow guide plate includes a flow guide side plate surrounding the flow guide cavity, the tops of the mounting step and the flow guide side plate are in the same plane, the infrared combustion plate abuts against the tops of the mounting step and the flow guide side plate, and the flow guide plate is configured to seal and isolate the flow guide cavity and the second premixing cavity.

[0016] In one embodiment, the infrared gas device further includes a buffer element whose shape is adapted to the step surface of the mounting step and the top surface of the diversion plate, and the buffer element is sandwiched between the infrared combustion plate and the burner head.

[0017] In one embodiment, the infrared gas device further includes a protective component, which is detachably connected to the burner head and covers the infrared combustion plate. The protective component has heat conduction holes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the infrared gas device provided in the embodiment of the present utility model;

[0019] Figure 2 This is a structural disassembly diagram of the infrared gas device provided in an embodiment of the present utility model;

[0020] Figure 3 A partial structural schematic diagram of the infrared gas device provided in this embodiment of the utility model;

[0021] Figure 4 A structural cross-sectional view of the infrared gas device provided in this embodiment of the utility model;

[0022] Figure 5 The diagram shows the structure of the gas distribution plate provided in the embodiment of this utility model.

[0023] Label Explanation:

[0024] 1. Infrared combustion plate; 2. Furnace head; 201. Central cavity; 202. Outer ring cavity; 2021. First premixing cavity; 2022. Second premixing cavity; 21. Mounting step; 22. Guide pin; 31. First ejector tube; 32. Second ejector tube; 4. Gas distribution plate; 41. Guide hole; 42. Groove; 5. Support cylinder; 6. Flow guide plate; 61. Flow guide cavity; 62. Base plate; 63. Flow guide side plate; 7. Ignition needle; 8. Buffer; 9. Protective component; 91. Mounting groove; 92. Recessed part. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] like Figures 1 to 4As shown, this embodiment of the invention first provides an infrared gas combustion device, which includes an infrared combustion plate 1, a burner head 2, and a first ejector tube 31. The burner head 2 has a central cavity 201 and an outer annular cavity 202 surrounding the central cavity 201. The infrared combustion plate 1 is installed on top of the central cavity 201 and the outer annular cavity 202. The first ejector tube 31 supplies a mixture of gas and air to the outer annular cavity 202. The mixture enters the micropores of the infrared combustion plate 1, causing combustion to occur in the outer peripheral area of ​​the infrared combustion plate 1 and generating infrared radiation. The infrared combustion plate 1 includes, but is not limited to, a ceramic plate, and can also be a multi-layered metal mesh.

[0030] The infrared gas combustion device also includes a gas distribution plate 4, which is disposed within the outer annular cavity 202 and divides the outer annular cavity 202 into a first premixing cavity 2021 and a second premixing cavity 2022, which are arranged vertically. The outlet end of the first ejector tube 31 is connected to the first premixing cavity 2021. The gas distribution plate 4 has multiple guide holes 41, and the first premixing cavity 2021 and the second premixing cavity 2022 are interconnected through the guide holes 41. The volume of the second premixing cavity 2022 is smaller than that of the first premixing cavity 2021. The mixed gas flowing out from the outlet end of the first ejector tube 31 first enters the first premixing cavity 2021 for preliminary mixing; then it enters the second premixing cavity 2022 for secondary premixing through the multiple guide holes 41 of the gas distribution plate 4, and finally flows into the micropores of the infrared combustion plate 1. Due to the division by the gas distribution plate 4, the spatial volume of the second premixing cavity 2022 is smaller than that of the first premixing cavity 2021. Figure 4 As shown, the second premixing chamber 2022 contains less mixed gas, so less mixed gas is preheated, which helps to reduce the combustion rate of the mixed gas in the infrared combustion plate 1. Moreover, the smaller volume of the second premixing chamber 2022 helps to increase the gas flow rate to the infrared combustion plate 1, reduce the risk of backfire, avoid deflagration caused by backfire flames entering the second premixing chamber 2022 in reverse, and improve the safety of infrared gas equipment.

[0031] In one embodiment, the infrared combustion plate 1 is a ceramic plate with multiple micropores inside. The sum of the pore areas of the multiple guide holes 41 is less than the sum of the pore areas of the multiple micropores. The flow velocity of the mixed gas from the first premixing chamber 2021 through the guide holes 41 is greater than the flow velocity of the mixed gas from the second premixing chamber 2022 through the micropores of the ceramic plate. The faster gas flow velocity at the guide holes 41 impacts the infrared combustion plate 1, further reducing the risk of backfire of the infrared combustion plate 1.

[0032] In one embodiment, the sum of the areas of the plurality of flow guide holes 41 is S1, and the sum of the areas of the plurality of micropores of the infrared combustion plate 1 is S2, wherein S1 is 1 / 3*S2 to 1 / 2*S2. Specifically, the ratio of the sum of the areas of the plurality of flow guide holes 41 to the sum of the areas of the plurality of micropores of the infrared combustion plate 1 includes, but is not limited to, 1 / 3, 2 / 5, and 1 / 2.

[0033] The gas distribution plate 4 has multiple grooves 42, and each groove 42 corresponds to a multiple guide hole 41. The guide hole 41 is opened on the side wall of the groove 42. The guide hole 41 guides the flow of the mixed gas. After the mixed gas flows through the guide hole 41, it forms an angle of less than 90° with the plane where the gas distribution plate 4 is located, and spirals upward in the second premixing chamber 2022, which is conducive to further mixing of gas and air, and improves the uniformity of gas and air mixing and the combustion uniformity of infrared combustion plate 1.

[0034] In one embodiment, multiple grooves 42 are arranged radially around the center of the gas distribution plate 4. The uniformly arranged grooves 42 ensure that the gas flowing out of each guide hole 41 flows in a tangential spiral upward along the circumference, reducing the risk of turbulence and facilitating the smooth flow of the mixed gas. Figure 5 As shown, multiple grooves 42 are divided into two groups, and the multiple grooves 42 in each group are arranged radially around the center of the gas distribution plate 4. The two groups of grooves 42 are arranged concentrically in inner and outer rings along the radial direction of the gas distribution plate 4. The sidewall extends radially along the gas distribution plate 4. After the mixed gas flows through the guide hole 41, it can continue to flow along the circumference of the gas distribution plate 4, thus forming a spiral upward.

[0035] The sidewall protrudes towards the first premixing chamber 2021 to form a groove 42, meaning the groove 42 is located within the first premixing chamber 2021. The guide hole 41 faces the first premixing chamber 2021, allowing the mixed gas in the first premixing chamber 2021 to flow directly and quickly into the guide hole 41, resulting in good flow smoothness. The groove 42 provides a buffer for the mixed gas, guiding it to flow spirally along the circumference of the gas distributor 4 and rise, preventing the mixed gas from rising directly and causing insufficient mixing uniformity.

[0036] In one embodiment, the infrared gas device further includes a support cylinder 5, which is disposed within the burner head 2. The interior of the support cylinder 5 forms a central cavity 201. The outlet end of the second ejector tube 32 is connected to the central cavity 201, providing a mixed gas into the central cavity 201, causing combustion to occur in the central region of the infrared combustion plate 1 and generating infrared radiation. A gas distribution plate 4 surrounds and is connected to the outer periphery of the support cylinder 5, providing support for the gas distribution plate 4 and facilitating its placement within the burner head 2. Optionally, the gas distribution plate 4 and the support cylinder 5 are integrally formed, such as... Figure 5 As shown, the structure has good strength. The support cylinder 5, the burner head 2, and the gas distribution plate 4 are arranged to form a first premixing chamber 2021, which is located below the gas distribution plate 4.

[0037] The support cylinder 5 is positioned below the gas distribution plate 4. The infrared gas equipment also includes a diversion plate 6 and an ignition needle 7. The diversion plate 6 is positioned above the gas distribution plate 4 and between the gas distribution plate 4 and the infrared combustion plate 1. The ignition needle 7 is positioned around the periphery of the infrared combustion plate 1, thus preventing the ignition needle 7 from damaging the integrity of the infrared combustion plate 1. The infrared combustion plate 1 can be made of a full-plane ceramic plate, which has better structural strength. The ignition end of the ignition needle 7 extends above the infrared combustion plate 1. A diversion cavity 61 is formed within the diversion plate 6. One end of the diversion cavity 61 is connected to the central cavity 201, and the other end extends towards the ignition needle 7, diverting the mixed gas in the central cavity 201 to the vicinity of the ignition end. The mixed gas in the central cavity 201 is less affected by external airflow, and the combustion temperature is relatively low, resulting in a higher ignition success rate and reducing the risk of high-temperature deformation of the ignition needle 7.

[0038] In one embodiment, the drainage plate 6 has a teardrop-shaped cross-section along the horizontal direction, such as... Figure 3 As shown. And the tip is facing the ignition needle 7, which on the one hand makes the mixed gas near the ignition end of the ignition needle 7 more concentrated, improving the ignition success rate; on the other hand, it reduces the diversion effect on the central cavity 201, ensuring the combustion efficiency of the central area of ​​the infrared combustion plate 1.

[0039] The diversion plate 6 includes a base plate 62, which has a through-hole connecting the central cavity 201, thus enabling communication between the central cavity 201 and the diversion cavity 61. The base plate 62 partially blocks the diversion hole 41, and the diversion plate 6 is configured to seal and isolate the diversion cavity 61 and the first premixing cavity 2021, preventing the mixed gas in the first premixing cavity 2021 from entering the diversion cavity 61. This isolates the central cavity 201 and the second premixing cavity 2022, ensuring that the combustion in the central region and the outer peripheral region of the infrared combustion plate 1 are independent, thereby improving combustion stability and reducing the risk of flameout.

[0040] The inner peripheral wall of the burner head 2 has a radially protruding mounting step 21. The flow guide plate 6 includes a flow guide side plate 63 surrounding and forming a flow guide cavity 61. The tops of the mounting step 21 and the flow guide side plate 63 are located in the same plane. The infrared combustion plate 1 abuts against the tops of the mounting step 21 and the flow guide side plate 63. The mounting step 21 and the flow guide side plate 63 provide stable support for the infrared combustion plate 1, which has a large self-weight. When the infrared combustion plate 1 is placed on the mounting step 21 and the flow guide side plate 63, the flow guide plate 6 is configured to seal and isolate the flow guide cavity 61 and the second premixing cavity 2022, reducing gas leakage between the flow guide cavity 61 and the second premixing cavity 2022.

[0041] The infrared combustion plate 1 is typically made of porous ceramic plate or metal fiber mesh, which has a high manufacturing process and cost, and is easily damaged by impact. To improve the protection of the infrared combustion plate 1, the infrared gas equipment also includes a buffer 8. The shape of the buffer 8 is adapted to the step surface of the mounting step 21 and the top surface of the flow guide plate 6 to avoid obstructing the flow of the mixed gas. The buffer 8 is sandwiched between the infrared combustion plate 1 and the burner head 2 to avoid hard contact between the infrared combustion plate 1 and the burner head 2 and the flow guide plate 6. The buffer 8 is made of a high-temperature resistant inorganic compound. Exemplarily, in one embodiment, the buffer 8 is made of aluminum phosphate.

[0042] The infrared gas appliance also includes a protective component 9, which is detachably connected to the burner head 2 and covers the infrared combustion plate 1. The protective component 9 provides protection for the infrared combustion plate 1, preventing damage caused by cookware bumping against it during daily use. The protective component 9 has heat conduction holes, allowing heat radiated by the infrared combustion plate 1 to be transferred to the cookware. The protective component 9 provides protection without affecting the performance of the infrared combustion plate 1; furthermore, it reduces external airflow disturbance to the flame of the infrared combustion plate 1.

[0043] In one embodiment, the protective component 9 is a mesh structure woven from iron-chromium-aluminum alloy wire. The protective component 9 has an installation groove 91, and the burner head 2 is equipped with a guide pin 22. The installation groove 91 includes interconnected vertical and horizontal grooves. The vertical groove extends along the height of the burner head 2, reaching the edge of the side frame of the protective component 9 to form an opening. The horizontal and vertical grooves are set at an angle. During installation of the protective component 9, the guide pin 22 first enters the vertical groove through the opening. The protective component 9 descends and approaches the infrared combustion plate 1. During this process, the guide pin 22 slides along the vertical groove. Subsequently, the protective component 9 is rotated, causing the guide pin 22 to slide along the horizontal groove until it reaches the end of the horizontal groove. The protective component 9 is then installed and constrained to the burner head 2. When it is necessary to disassemble the protective component 9, it is rotated in the opposite direction and lifted upwards to detach it from the burner head 2. The disassembly and assembly of the protective component 9 are relatively convenient, facilitating the inspection and maintenance of the infrared combustion plate 1.

[0044] The edge of the protective component 9 has a recess 92, and the ignition end of the ignition needle 7 is at least partially located within the recess 92. The recess 92 provides clearance for the ignition end, allowing the ignition end to be closer to the infrared combustion plate 1, thereby improving the ignition success rate.

[0045] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0046] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. Infrared gas equipment, including: The furnace includes an infrared combustion plate (1), a furnace head (2), and a first ejector tube (31). The furnace head (2) has a central cavity (201) and an outer annular cavity (202) surrounding the central cavity (201). The infrared combustion plate (1) is mounted on top of the central cavity (201) and the outer annular cavity (202). The furnace head (2) is characterized by... The infrared gas device also includes a gas distribution plate (4), which is disposed in the outer ring cavity (202) and divides the outer ring cavity (202) into a first premixing cavity (2021) and a second premixing cavity (2022) disposed vertically. The second premixing cavity (2022) and the first premixing cavity (2021) are located on the upper side and the lower side of the gas distribution plate (4), respectively. The gas outlet end of the first ejector tube (31) is connected to the first premixing cavity (2021). The gas distribution plate (4) is provided with a plurality of guide holes (41). The first premixing cavity (2021) and the second premixing cavity (2022) are connected to each other through the guide holes (41). The volume of the second premixing cavity (2022) is smaller than the volume of the first premixing cavity (2021).

2. The infrared gas device according to claim 1, characterized in that, The infrared combustion plate (1) is a ceramic plate, and the ceramic plate has multiple micropores inside. The sum of the pore areas of the multiple flow guide holes (41) is less than the sum of the pore areas of the multiple micropores.

3. The infrared gas device according to claim 1, characterized in that, The air distribution plate (4) has multiple grooves (42), and the multiple grooves (42) and the multiple guide holes (41) correspond one-to-one. The guide holes (41) are opened on the side wall of the grooves (42).

4. The infrared gas generator according to claim 3, characterized in that, The plurality of said grooves (42) are arranged radially around the center of said air distribution plate (4), and the sidewalls extend radially along said air distribution plate (4); and / or, The sidewall extends in a protrusion toward the first premixing chamber (2021) to form the groove (42).

5. The infrared gas device according to claim 1, characterized in that, The infrared gas equipment also includes a support cylinder (5), which is disposed inside the burner head (2). The support cylinder (5) forms the central cavity (201) inside the support cylinder (5). The gas distribution plate (4) surrounds and is connected to the outer periphery of the support cylinder (5). The support cylinder (5), the burner head (2), and the gas distribution plate (4) are arranged to form the first premixing cavity (2021).

6. The infrared gas generator according to claim 5, characterized in that, The support cylinder (5) is located below the gas distribution plate (4). The infrared gas device also includes a diversion plate (6) and an ignition needle (7). The diversion plate (6) is located above the gas distribution plate (4) and between the gas distribution plate (4) and the infrared combustion plate (1). The ignition needle (7) is located on the periphery of the infrared combustion plate (1). A diversion cavity (61) is formed in the diversion plate (6). One end of the diversion cavity (61) is connected to the central cavity (201), and the other end extends toward the ignition needle (7).

7. The infrared gas generator according to claim 6, characterized in that, The drainage plate (6) includes a base plate (62) having a through-hole communicating with the central cavity (201). The base plate (62) partially blocks the drainage hole (41). The drainage plate (6) is configured to seal and isolate the drainage cavity (61) and the first premixing cavity (2021); and / or, The drainage plate (6) has a teardrop-shaped cross section along the horizontal direction, with its tip pointing towards the ignition needle (7).

8. The infrared gas generator according to claim 6, characterized in that, The inner peripheral wall of the burner head (2) has a radially protruding mounting step (21), the flow guide plate (6) includes a flow guide side plate (63) surrounding the flow guide cavity (61), the tops of the mounting step (21) and the flow guide side plate (63) are located in the same plane, the infrared combustion plate (1) abuts against the tops of the mounting step (21) and the flow guide side plate (63), and the flow guide plate (6) is configured to seal and isolate the flow guide cavity (61) and the second premixing cavity (2022).

9. The infrared gas generator according to claim 8, characterized in that, The infrared gas device also includes a buffer (8), the shape of which is adapted to the step surface of the mounting step (21) and the top surface of the diversion side plate (63), and the buffer (8) is sandwiched between the infrared combustion plate (1) and the burner head (2).

10. The infrared gas device according to any one of claims 1-9, characterized in that, The infrared gas device also includes a protective component (9), which is detachably connected to the burner head (2) and covers the infrared combustion plate (1). The protective component (9) has heat conduction holes.

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