Infrared burner

Abstract

The utility model relates to the technical field of cookers, in particular to an infrared burner which comprises a burner body, a combustion chamber is arranged in the burner body, a porous infrared combustion plate is correspondingly arranged at the top of the combustion chamber, a main injection pipe is arranged on one side of the burner body, and a flow guide assembly is arranged in the combustion chamber. The flow guide assembly limits rising of fuel gas on the side, close to the main injection pipe, of the combustion chamber, and meanwhile the flow guide assembly can guide the fuel gas to the side, away from the main injection pipe, of the combustion chamber. In addition, the fuel gas guided to the other side of the combustion chamber rises to the porous infrared combustion plate through the gas passing channel; secondly, the gas passing unit arranged on the flow guide assembly can guide the fuel gas located below the flow guide assembly to the position above the flow guide assembly, and the fuel gas relatively enriched below the flow guide assembly is guided to the space above the flow guide assembly; through the synergistic effect of the flow guide assembly and the gas passing unit, gas can be evenly distributed in the combustion chamber, and it is guaranteed that fire of the infrared combustion plate is evenly emitted.

Description

Technical Field

[0001] This utility model relates to the technical field of cooking utensils, specifically an infrared burner. Background Technology

[0002] With the continuous development of energy utilization and combustion technology, infrared burners have been widely used in many fields such as industrial heating, household stoves, and outdoor cooking utensils due to their many advantages such as high efficiency, energy saving, and environmental protection.

[0003] The working principle of an infrared burner is mainly to introduce gas through an ejector tube, mix it with air, and then burn the mixed gas on the surface of a porous infrared combustion plate to generate infrared radiation, thereby achieving efficient heat transfer.

[0004] Traditional infrared burners typically include main components such as a main ejector tube, a gas chamber, and a porous infrared combustion plate. The main ejector tube delivers the gas to the gas chamber, where the gas mixes thoroughly with air before combustion occurs through the porous infrared combustion plate.

[0005] However, existing infrared burners have some obvious problems in actual use. Among them, the design and operation of the main ejector tube have a crucial impact on the combustion effect. When the main ejector tube outputs gas, due to its structure and airflow characteristics, the gas rises too early. This premature rise prevents the gas from spreading evenly to the other side of the gas chamber in the ideal way.

[0006] In the gas chamber, uniform gas distribution is crucial for ensuring consistent firepower from the porous infrared combustion plate. However, due to the premature rise and uneven diffusion of the gas, the gas distribution within the gas chamber becomes uneven, with a relatively high gas concentration on the side closer to the main ejector tube output end and a relatively low gas concentration on the other side of the gas chamber.

[0007] When the mixed gas is burned through the porous infrared combustion plate, the difference in gas concentration directly leads to different combustion intensities in different areas of the porous infrared combustion plate. Areas with high gas concentration have stronger firepower, while areas with low gas concentration have weaker firepower, resulting in inconsistent firepower of the porous infrared combustion plate. This inconsistency in firepower not only affects the heating effect and efficiency of the burner, but may also cause uneven heating of the heated object, affecting product quality and user experience. For example, in a stove, some areas of the cookware may heat up too quickly, while other areas may not heat up enough.

[0008] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0009] Regarding the aforementioned technical problem in existing infrared burners where the main ejector tube outputs gas prematurely due to its structure and airflow characteristics, resulting in uneven gas distribution within the gas chamber, with a relatively high gas concentration on the side closer to the main ejector tube output and a relatively low gas concentration on the other side of the gas chamber.

[0010] The technical solution adopted by this utility model to solve its technical problem is:

[0011] An infrared burner includes a burner head body with a combustion chamber. A perforated infrared combustion plate is correspondingly disposed on the top of the combustion chamber. A main ejector tube communicating with the combustion chamber is disposed on one side of the burner head body. A flow guiding component is disposed in the combustion chamber between the output end of the main ejector tube and the perforated infrared combustion plate. The tail end of the flow guiding component is spaced apart from the side of the combustion chamber away from the main ejector tube to form a gas passage. The flow guiding component can restrict the rise of the gas in the combustion chamber near the main ejector tube and guide the gas in the combustion chamber near the main ejector tube to the side of the combustion chamber away from the main ejector tube, and guide it to the perforated infrared combustion plate through the gas passage. The flow guiding component is provided with a gas passing unit, which can guide the gas located below the flow guiding component to the perforated infrared combustion plate.

[0012] In an infrared burner as described above, the flow guiding assembly includes a flow guide plate.

[0013] In the infrared burner described above, the guide plate is arranged parallel to the bottom wall of the combustion chamber.

[0014] As described above, in an infrared burner, the combustion chamber includes an annular gas passage and a flow divider column, the flow divider column being located in the middle region of the annular gas passage.

[0015] In the infrared burner described above, the output end of the main ejector tube extends into the annular gas passage, and the central axis of the main ejector tube intersects with the center of the diverter column.

[0016] As described above, in an infrared burner, the flow guiding assembly includes a flow guiding plate. The flow guiding plate is arc-shaped and includes a first arc segment and a second arc segment disposed on both sides of an annular air passage. The first arc segment and the second arc segment respectively abut against the outer wall of the flow dividing column.

[0017] As described above, in an infrared burner, the tail end of the first arc-shaped segment is provided with a first baffle that bends downwards, and the tail end of the second arc-shaped segment is provided with a second baffle that bends downwards.

[0018] As described above, in an infrared burner, the flow divider column is provided with an assembly through hole, and a center burner cap assembly is assembled in the assembly through hole. The center burner cap assembly includes a central gas supply channel and a burner cap that is detachably connected to its top.

[0019] In the infrared burner described above, the burner cap is threadedly connected to the top of the central gas supply channel.

[0020] As described above, in an infrared burner, the gas passage unit includes a plurality of air holes disposed on the flow guide assembly; and / or, the gas passage unit includes a gas passage formed by a certain distance between the outer wall of the flow guide assembly and the inner wall of the combustion chamber.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model relates to the technical field of cookware, specifically an infrared burner. It includes a burner body with a combustion chamber. A porous infrared combustion plate is positioned at the top of the combustion chamber. A main injector is located on one side of the burner body. A flow guiding component is installed within the combustion chamber. When the main injector delivers gas into the combustion chamber, the flow guiding component restricts the rise of the gas near the main injector. Simultaneously, it guides the gas towards the side of the combustion chamber away from the main injector. Furthermore, the gas guided to the other side of the combustion chamber rises through this air passage to the porous infrared combustion plate. Additionally, an air passage unit on the flow guiding component guides the gas below the component to above it, directing the relatively concentrated gas below the component to the upper space. Through the synergistic effect of the flow guiding component and the air passage unit, the gas is evenly distributed within the combustion chamber, ensuring uniform flame distribution from the porous infrared combustion plate.

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the infrared burner according to Embodiment 1 of this utility model;

[0025] Figure 2 This is one of the exploded schematic diagrams of the infrared burner of Embodiment 1 of this utility model;

[0026] Figure 3 This is the second exploded view of the infrared burner of Embodiment 1 of this utility model;

[0027] Figure 4 This is a top view schematic diagram of the infrared burner of Embodiment 1 of this utility model;

[0028] Figure 5 for Figure 4Cross-sectional view along line AA;

[0029] Figure 6 for Figure 4 Cross-sectional view along line BB (infrared burner of Example 1).

[0030] Figure 7 This is a top view schematic diagram of the hidden cover and porous infrared combustion plate of the infrared burner in Embodiment 1 of this utility model;

[0031] Figure 8 This is the third exploded view of the infrared burner of Embodiment 1 of this utility model;

[0032] Figure 9 This is one of the exploded schematic diagrams of the infrared burner in Embodiment 2 of this utility model;

[0033] Figure 10 This is the second exploded view of the infrared burner in Embodiment 2 of this utility model;

[0034] Figure 11 for Figure 4 Cross-sectional view along line BB (infrared burner of Example 2).

[0035] Figure 12 This is a top view of the hidden cover and perforated infrared combustion plate of the infrared burner in Embodiment 2 of this utility model.

[0036] Figure 13 This is a schematic diagram of the flow guide plate in Embodiment 2 of this utility model. Detailed Implementation

[0037] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0038] Example 1:

[0039] like Figures 1 to 8As shown, an infrared burner of this embodiment includes a burner body 1, which has a combustion chamber 3. A perforated infrared combustion plate 4 is correspondingly arranged on the top of the combustion chamber 3. A main ejector tube 11 communicating with the combustion chamber 3 is provided on one side of the burner body 1. A flow guiding component 5 is arranged in the combustion chamber 3 between the output end of the main ejector tube 11 and the perforated infrared combustion plate 4. The tail end of the flow guiding component 5 is spaced apart from the side of the combustion chamber 3 away from the main ejector tube 11 to form a gas passage 12. When the gas supplied by the main ejector tube 11 enters the combustion chamber 3, the flow guiding component 5 can restrict the combustion chamber 3 from approaching the main ejector tube 11. The rising gas on one side of the main injector 11 guides the gas flow from the side of the combustion chamber 3 near the main injector 11 to the side of the combustion chamber 3 away from the main injector 11, and then guides it to the porous infrared combustion plate 4 through the gas passage 12, thereby making the gas evenly distributed in the combustion chamber 3. Furthermore, the flow guiding assembly 5 is provided with a gas passage unit, which can guide the gas located below the flow guiding assembly 5 to the porous infrared combustion plate 4, further making the gas evenly distributed in the combustion chamber 3, avoiding the gas from concentrating on the side of the combustion chamber 3 near the main injector 11, and ensuring uniform flame output from the porous infrared combustion plate 4.

[0040] Specifically, after the main ejector pipe delivers gas into the combustion chamber, the gas will first reach the side of the combustion chamber closest to the main ejector pipe. In this embodiment, the flow guiding component is located between the output end of the main ejector pipe and the porous infrared combustion plate. Its presence restricts the rise of the gas on the side of the combustion chamber closest to the main ejector pipe, just like setting up a "barrier" to prevent the gas from moving upward too early. At the same time, the flow guiding component will guide this part of the gas to the side of the combustion chamber away from the main ejector pipe. This is achieved by utilizing the structure and shape of the flow guiding component itself, so that the gas can flow along a specific path.

[0041] Furthermore, the tail end of the flow guide assembly forms an air passage with the side of the combustion chamber away from the main injector. The gas that is guided to the other side of the combustion chamber rises to the porous infrared combustion plate through this air passage. In this way, the gas that is originally concentrated near the main injector can be more evenly distributed at the top of the entire combustion chamber, providing a uniform gas supply to the porous infrared combustion plate.

[0042] Furthermore, the gas passing unit on the flow guiding component can guide the gas located below the flow guiding component to the top of the flow guiding component, and guide the relatively rich gas below the flow guiding component to the upper space to fill any possible gas gaps. The guided gas and the gas rising through the gas passing channel work together to further make the gas more evenly distributed throughout the combustion chamber, especially in the area below the porous infrared combustion plate, and ultimately allow the gas to reach all parts of the porous infrared combustion plate evenly.

[0043] Through the synergistic effect of the flow guiding components and the gas passing unit, the gas can be evenly distributed within the combustion chamber, avoiding the concentration of gas on the side of the combustion chamber near the main injector. This ensures that all areas of the porous infrared combustion plate receive a uniform gas supply, thereby guaranteeing uniform flame output. Whether it's a household stove, a portable gas stove, or outdoor cooking equipment, this ensures more even heating of the object, improving heating efficiency and product quality.

[0044] Furthermore, uniform gas distribution means more complete combustion. When gas burns evenly on a porous infrared combustion plate, it mixes more effectively with oxygen, reducing incomplete combustion, thereby improving combustion efficiency and reducing energy consumption.

[0045] like Figures 1 to 8 As shown, the flow guiding component 5 in this embodiment includes a flow guiding plate.

[0046] Specifically, after the gas enters the gas chamber from the main injector, the baffle plate changes the originally disordered flow path of the gas. Normally, when the gas enters the gas chamber, it may directly impact upwards, but the baffle plate will guide the gas in a specific direction, such as guiding the gas to flow towards the side of the gas chamber away from the main injector. This allows the gas to spread more widely in the gas chamber and avoids the gas from concentrating in a certain local area.

[0047] Specifically, the deflector can constrain the gas, creating a relatively stable airflow around it. This stable airflow helps the gas and air mix better because, under stable flow conditions, the gas and air have more time and space to come into contact and mix, thus providing higher-quality gas for the subsequent combustion process and achieving more complete combustion.

[0048] Furthermore, because the baffle plate distributes the gas evenly, the gas can be sprayed out and burned more evenly when passing through the combustion components, thus making the burner's firepower more uniform. The stable airflow and uniform pressure distribution make the combustion process more stable, reducing the occurrence of unstable phenomena such as flame flickering and flameout.

[0049] like Figures 1 to 8 As shown, in this embodiment, the guide vane is arranged parallel to the bottom wall of the combustion chamber 3.

[0050] When the baffle is set parallel to the bottom wall of the combustion chamber, the gas entering the combustion chamber from the main injector will flow horizontally under the guidance of the baffle. Due to the parallel structure, the gas will not generate additional upward or downward force due to the inclination of the baffle, so it can diffuse relatively smoothly to the side of the combustion chamber away from the main injector, so that the gas forms a relatively uniform horizontal distribution at the bottom of the combustion chamber.

[0051] During the horizontal flow of the gas, a relatively stable gas flow layer is formed between the guide plate and the bottom wall of the combustion chamber. This gas flow layer will form a stratification effect with the air or gas in the space above, which is conducive to a more orderly mixing of gas and air in the subsequent process. As the gas flows horizontally, the gas that enters later will be continuously replenished to further maintain this stratified flow state.

[0052] Furthermore, the parallel baffles impede the upward flow of the gas, preventing it from rising too quickly to the upper part of the combustion chamber. Instead, the gas diffuses and mixes fully at the bottom before rising at a relatively uniform speed through the gas passage or other pathways to the area below the porous infrared combustion plate. This ensures that the gas has a good mixing state and uniform distribution when it reaches the combustion plate.

[0053] By guiding the horizontal flow of the gas and controlling its rising speed, the gas can diffuse more widely at the bottom of the combustion chamber, avoiding the gas from concentrating near the main injector or in a localized area. This makes the gas distribution more uniform throughout the bottom of the combustion chamber, resulting in more uniform combustion when it rises to the porous infrared combustion plate, thus improving the uniformity of the burner's heat output.

[0054] Because the gas has more time to mix with air at the bottom of the combustion chamber and can reach the combustion plate evenly, the gas has more sufficient contact with oxygen, thus achieving more complete combustion. This improves energy utilization efficiency, reduces gas waste, and lowers operating costs.

[0055] Stable stratified flow and uniform gas distribution help maintain the stability of the combustion process, reducing problems such as flame flickering and discontinuous combustion caused by uneven gas distribution. This enables the burner to work continuously and stably, improving the reliability and safety of the equipment.

[0056] In other embodiments, the guide plate is inclined to the bottom wall of the combustion chamber 3. The gas entering the combustion chamber from the main injector will flow in a specific direction under the guidance of the guide plate. If the guide plate is inclined downward away from the main injector, the gas will accelerate and diffuse to a farther distance from the bottom of the combustion chamber under the guidance of gravity and the guide plate. If the guide plate is inclined upward, it will guide the gas to flow upward faster, changing the original natural diffusion path of the gas in the combustion chamber.

[0057] Preferably, the inclined baffle will cause disturbance during the flow of gas. When the gas flows along the inclined surface, it will form a relative velocity difference with the surrounding air, thereby inducing turbulence. This turbulence can enhance the mixing effect between gas and air, allowing the gas and air to mix fully in a shorter time, creating better conditions for subsequent combustion.

[0058] By tilting the baffle, the time and concentration of the gas reaching different areas of the combustion chamber can be controlled. For example, tilting the baffle so that more gas flows to the edge area of ​​the combustion chamber can expand the combustion area, making the combustion of the entire combustion chamber more uniform and avoiding local overheating or incomplete combustion.

[0059] Because the inclined baffle promotes full mixing of gas and air, the combustion reaction can proceed more completely, allowing more gas molecules to come into full contact with oxygen molecules and react, releasing more energy, thereby improving the thermal efficiency of the burner and reducing energy consumption.

[0060] Preferably, the distribution of gas in the combustion chamber can be flexibly changed by adjusting the tilt angle and direction of the baffle plate according to actual usage needs, thereby adjusting the combustion zone.

[0061] You can choose the appropriate design based on your actual needs.

[0062] like Figures 1 to 8 As shown, the combustion chamber 3 of this embodiment includes an annular gas passage 31 and a diverter column 32. The diverter column 32 is located in the middle region of the annular gas passage 31. When the gas supplied by the main injector 11 enters the annular gas passage 31 and flows to the diverter column 32 located in the middle region of the annular gas passage 31, the diverter column plays a role in blocking and diverting the gas. When the gas passes through the diverter column 32, it will flow to both sides of it, and the guide plate guides these dispersed gas flows. This allows the gas to maintain a relatively stable flow direction and speed distribution as it flows along the annular gas passage 31. It avoids local turbulence, backflow, or accumulation of gas in the annular gas passage, allowing the gas to circulate in the annular gas passage 31 in a more orderly manner. Ultimately, it achieves a uniform distribution of gas in the entire annular gas passage 31. Since the annular gas passage 31 is part of the combustion chamber 3, when the gas is evenly distributed in the annular gas passage 31, it also achieves a uniform distribution in the combustion chamber 3.

[0063] Specifically, the structure of the annular air passage 31 allows the gas to circulate within it, increasing the contact time and area between the gas and air. This allows the gas and air to mix more thoroughly, creating favorable conditions for the subsequent combustion process, making combustion more complete, thereby improving combustion efficiency and reducing energy waste.

[0064] The shape of the annular gas passage 31 helps to form a stable combustion flame. The gas continuously circulates within the annular gas passage, and the flame can be maintained in this relatively stable space, avoiding unstable phenomena such as flame flickering and extinguishing, thus ensuring the reliability and safety of the combustion process.

[0065] The annular structure can provide a larger airflow channel in a limited space. Compared with straight or other shaped air passages, the annular air passage can be arranged more compactly in the equipment, saving space and making the entire combustion chamber structure more compact, which is conducive to the miniaturization design of the equipment.

[0066] The ring shape itself is a structure with superior mechanical properties. When subjected to internal pressure and external loads, the ring-shaped air passage can distribute stress more evenly, reducing local stress concentration, thereby improving the structural strength and stability of the air passage and reducing the risk of deformation or damage.

[0067] When the gas flows in the annular gas passage, it can make the heat distributed more evenly in the annular space. This helps to avoid the problem of local overheating in the combustion chamber, makes the temperature field of the entire combustion chamber more uniform, improves the thermal stability of the combustion chamber, and also reduces the damage to equipment components caused by local high temperature, thus extending the service life of the equipment.

[0068] Furthermore, the smooth curve shape of the annular gas passage allows the gas to maintain a relatively smooth streamline during flow, reducing eddies and turbulence, thereby lowering flow resistance. This means that less energy is required for the gas to flow within the gas passage, improving the fluid transport efficiency of the entire system.

[0069] like Figures 1 to 8 As shown, in this embodiment, the output end of the main ejector tube 11 extends into the annular gas channel 31, and the central axis of the main ejector tube 11 intersects with the center of the diversion column 32, so as to shorten the length of the main ejector tube 11, facilitate the assembly of the infrared burner, have high adaptability, and also avoid the situation where the excessively long main ejector tube 11 obstructs the gas distribution in the gas chamber.

[0070] Specifically, when the gas flows in from the main injector 11, due to the certain flow velocity of the gas, according to Bernoulli's principle, a low-pressure area will be formed at the outlet of the main injector 11. This low-pressure area will attract the surrounding air to enter and mix with the gas to form combustible gas.

[0071] The output end of the main ejector tube 11 extends into the annular gas passage 31, and its central axis intersects with the center of the diverter column 32. When the gas is output from the main ejector tube 11 into the annular gas passage 31, the diverter column 32 will divert the gas, and the gas will spread evenly in all directions along the annular gas passage 31, so that the gas is more evenly distributed in the annular gas passage 31.

[0072] This design avoids the problem of the main ejector tube 11 being too long, making its length more reasonable. The shorter main ejector tube 11 occupies less space, making it easier to install and position during the assembly process of the infrared burner, reducing assembly difficulty and improving assembly efficiency. It can also better match and combine with other components of the infrared burner. Because the position and length of the main ejector tube 11 have been optimized, it can fit closely with components such as the annular gas channel 31 and the flow divider column 32, making the structure of the entire burner more compact and reasonable, and improving the overall adaptability and stability of the burner.

[0073] Furthermore, an excessively long main injector pipe 11 may form an obstruction in the gas chamber, affecting the normal distribution of gas and causing uneven distribution of gas in the gas chamber. However, by properly arranging the output end of the main injector pipe 11 within the annular gas passage 31, such obstruction can be avoided, allowing the gas to enter the annular gas passage 31 more smoothly and be evenly distributed in the combustion area under the action of the diversion column 32, providing more uniform gas for combustion, thereby improving combustion efficiency and stability.

[0074] like Figures 1 to 8 As shown, the top of the output end of the main ejector tube 11 in this embodiment is provided with an assembly part, the assembly part is provided with a first mounting hole 13, and the flow guiding component 5 is provided with a second mounting hole 53 corresponding to the first mounting hole 13. The correspondence between these two holes is the basis for achieving accurate connection between the main ejector tube 11 and the flow guiding component 5. During the assembly process, by aligning the two holes, the relative positions of the main ejector tube 11 and the flow guiding component 5 can be quickly determined, ensuring their correct spatial layout.

[0075] Once the first mounting hole 13 and the second mounting hole 53 are aligned, bolts, screws and other connectors can be used to pass through these two holes to firmly connect the main ejector tube 11 and the flow guiding assembly 5 together. This mechanical connection method utilizes the friction and fastening force between the connector and the hole wall to ensure that the main ejector tube 11 and the flow guiding assembly 5 will not undergo relative displacement or loosening during operation.

[0076] Specifically, the setting of the first mounting hole 13 and the second mounting hole 53 provides a clear positioning reference for the assembly work. Workers do not need to spend a lot of time adjusting the position of the main ejector tube 11 and the flow guide assembly 5 during assembly. They only need to align the two holes and install the connectors, which greatly shortens the assembly time and improves production efficiency.

[0077] This design makes the assembly process simpler and more intuitive. Even inexperienced workers can easily connect the main ejector tube 11 and the flow guide assembly 5 by following the prescribed steps, reducing the skill requirements for workers.

[0078] The main injector tube 11 and the flow guiding assembly 5 are firmly connected by connectors, which enhances the stability of the entire burner structure. During the operation of the burner, it can withstand the pressure and vibration generated by gas flow and combustion, reducing the probability of failure caused by loose parts and improving the reliability and service life of the equipment.

[0079] When the burner needs maintenance or component replacement, the main injector tube 11 and flow guide assembly 5 can be easily separated by simply disassembling the connectors, thanks to the connection method via mounting holes. This facilitates the inspection, cleaning, or replacement of each component, reducing maintenance costs and difficulty.

[0080] like Figures 1 to 8 As shown, the guide plate in this embodiment is arc-shaped, including a first arc segment 54 and a second arc segment 55 disposed on both sides of the annular air passage 31, and the first arc segment 54 and the second arc segment 55 respectively abut against the outer wall of the diversion column 32.

[0081] Specifically, in the annular air passage 31, the combustion gas-air mixture usually flows at a certain velocity and direction. Due to the characteristics of the annular structure, the airflow will exhibit an uneven distribution within the annular air passage, and there may be differences in airflow velocity and pressure near the inner wall and the outer wall.

[0082] The guide vane is in the shape of an arc, with the first arc section 54 and the second arc section 55 located on both sides of the annular air passage 31. When the combustible gas enters the annular air passage 31, the arc-shaped guide vane can guide the airflow along its arc surface. According to the principle of fluid mechanics, the arc surface can change the direction and speed distribution of the airflow, so that the airflow is more evenly distributed on the cross-section of the annular air passage 31.

[0083] Furthermore, the first arc segment 54 and the second arc segment 55 respectively abut against the outer wall of the diversion column 32. The diversion column 32 plays a role in further diverting and stabilizing the airflow. The guide plate guides the airflow to the vicinity of the diversion column 32, and the diversion column 32 will further divide and regulate the airflow, so that the combustible gas can flow to the combustion area in a more orderly manner.

[0084] In the annular air passage 31, the pressure of the airflow changes with the flow process. The presence of the arc-shaped guide vane can change the flow path and speed of the airflow, thereby affecting the pressure distribution of the airflow.

[0085] Through the cooperation of the first arc segment 54 and the second arc segment 55 with the diverting column 32, a relatively stable pressure field can be formed in the annular air passage 31. When the airflow encounters the arc-shaped guide plate and the diverting column 32, local pressure changes will occur. These changes interact with each other, ultimately making the pressure in the annular air passage 31 more uniform, avoiding situations where the local pressure is too high or too low, and ensuring the stable flow of airflow.

[0086] Uniform airflow distribution ensures more thorough gas-air mixing, guaranteeing a suitable mixing ratio at every point within the combustion zone. This contributes to improved combustion completeness, allowing more gas to participate in the combustion reaction, thereby increasing the combustion efficiency of the infrared burner and reducing energy waste.

[0087] Furthermore, the first arc-shaped section 54 and the second arc-shaped section 55 abut against the outer wall of the flow divider column 32, respectively. This design increases the contact area and connection stability between the guide plate and the flow divider column 32. During the operation of the burner, it can withstand the impact and vibration of the airflow, reduce the relative displacement and loosening between components, and extend the service life of the burner.

[0088] Furthermore, the combination of the arc-shaped guide vane with the annular air passage 31 and the flow divider 32 makes the structure of the entire burner more compact and reasonable. This optimized structural layout not only facilitates the flow of air, but also makes the installation and maintenance of the burner easier.

[0089] like Figures 1 to 8 As shown, the guide vane in this embodiment also includes an assembly section 56. The first arc-shaped section 54 and the second arc-shaped section 55 are located on both sides of the assembly section 56, respectively. One end of the assembly section 56 abuts against the inner wall of the combustion chamber 3, and the other end of the assembly section 56 abuts against the flow divider 32.

[0090] The assembly section 56 abuts against the inner wall of the combustion chamber 3 and the flow divider 32 respectively, increasing the connection strength between the guide plate and the combustion chamber 3 and the flow divider 32. This tight connection can effectively resist the vibration and impact generated during combustion, reduce the loosening and wear between components, and extend the service life of the burner.

[0091] Furthermore, the design of the assembly section 56 allows the guide plate, combustion chamber 3, and flow divider 32 to form an integrated structural system. This optimized structural layout not only facilitates airflow but also makes the internal structure of the burner more compact, saving space and making the burner easier to install and maintain.

[0092] like Figures 1 to 8 As shown, the diversion column 32 of this embodiment is provided with an assembly through hole 321, and the assembly through hole 321 is equipped with a center burner cap assembly 2. The center burner cap assembly 2 includes a center gas supply channel 21 and a burner cap 22 that is detachably connected to its top.

[0093] Specifically, the central gas supply channel 21 serves as a gas delivery channel, transporting gas from the gas source to the burner cap 22. When the gas enters the central gas supply channel 21, it flows upward along the channel to provide fuel for combustion.

[0094] The burner cap 22 is detachably connected to the top of the central gas supply channel 21, which facilitates the replacement and maintenance of the burner cap 22. When the burner cap 22 is blocked or damaged, it can be removed for cleaning or replacement without affecting the normal use of the central gas supply channel 21 and other components.

[0095] Preferably, the cooperation between the central burner assembly 2 and the surrounding annular gas channel 31 enables multiple combustion modes. The flame generated by the central burner 22 can complement the flame at the porous infrared combustion plate 4 to fill the flame in the middle area of ​​the porous infrared combustion plate 4, forming a more powerful and uniform combustion zone. This helps to improve combustion efficiency, allowing the gas to burn more completely and reducing energy waste.

[0096] like Figures 1 to 8 As shown, in this embodiment, the burner cap 22 and the top of the central gas supply channel 21 are connected by threads. Threaded connection is a common and reliable mechanical connection method. When the burner cap 22 and the top of the central gas supply channel 21 are connected by threads, the interlocking of the threads forms a tight fit. During the gas supply process, the gas flows from the central gas supply channel 21 to the burner cap 22 at a certain pressure. This pressure will impact the burner cap 22, and the friction and locking force of the threaded connection can resist the impact force of the gas, ensuring that the burner cap 22 and the central gas supply channel 21 maintain a relatively fixed position and preventing the burner cap 22 from shifting.

[0097] The threaded connection also provides a certain degree of sealing. With the burner cap 22 and the central gas supply channel 21 tightly connected, the possibility of gas leakage is reduced. At the same time, this tight connection helps to maintain the pressure stability of the gas in the channel, so that the gas can be evenly sprayed from each of the flame outlets of the burner cap 22, providing good conditions for stable combustion.

[0098] Since the burner cap 22 is fixed to the top of the central gas supply channel 21 and will not shift, the gas can be ejected from the flame outlet of the burner cap 22 according to the designed path and method. This ensures that the gas is evenly distributed around the burner cap 22 and fully mixed with the air. When the gas-air mixture is ignited, a stable and uniform flame can be formed, improving the combustion efficiency.

[0099] Furthermore, the stable position of the burner cap 22 prevents airflow turbulence caused by misalignment. If the burner cap 22 misaligns, the direction and speed of the gas ejection will change, causing airflow instability and disturbance. The threaded connection ensures the accuracy of the burner cap 22's position, reduces airflow disturbance, and makes the combustion process smoother.

[0100] During combustion, unstable airflow can cause vibration of burner components, resulting in noise. By fixing the burner cap 22 with a threaded connection, stable gas ejection and smooth airflow are ensured, reducing vibration caused by airflow disturbance and thus reducing noise generated during combustion.

[0101] like Figures 1 to 8 As shown, the gas passing unit of this embodiment includes a plurality of air holes 51 disposed on the flow guiding component 5; and / or, the gas passing unit includes a gas passing channel 52 formed between the outer wall of the flow guiding component 5 and the inner wall of the combustion chamber 3 with a certain distance, so as to supplement the gas in the space above the flow guiding component 5 through the gas passing unit, so as to further ensure that the gas can be evenly distributed in the gas chamber.

[0102] Inside the combustion chamber, as the combustion reaction proceeds, the gas in the space above the flow guide assembly is continuously consumed, resulting in a relatively low pressure in that area. The vents on the flow guide assembly connect the upper and lower spaces of the flow guide assembly. Based on the principle that fluids flow from high-pressure areas to low-pressure areas, the gas will enter the space above the flow guide assembly through the vents under the action of the pressure difference.

[0103] Multiple vents are evenly distributed on the flow guide component, allowing the gas to enter the upper space simultaneously from multiple locations. This dispersed replenishment method helps the gas to be distributed more evenly in the space, avoiding situations where the local gas concentration is too high or too low.

[0104] Preferably, the multiple air holes can be arranged in a single-row, double-row, or multi-row array along the circumference of the guide plate. They can also be arranged in a regular manner, such as a ring array or a U-shaped array, or in a random arrangement. The appropriate design can be selected according to actual needs.

[0105] Furthermore, after the gas enters the combustion chamber, a portion of it will flow upward through the vent 51 and / or the gas passage 52. This is because the gas has a certain pressure and flow rate when it enters the combustion chamber, and the gas passage 52 provides an additional flow path for the gas.

[0106] The gas rising through the gas passage 52 mixes with the gas entering the space above the flow guide assembly sequentially from the annular gas passage 31 and the gas passage 12. This mixing process further promotes the uniform distribution of the gas throughout the gas chamber, allowing the gas to come into more full contact with the air and creating favorable conditions for the subsequent combustion reaction.

[0107] The appropriate air passage unit method can be selected according to actual needs, which will not be elaborated here.

[0108] like Figures 1 to 8As shown, the inner wall of the combustion chamber 3 in this embodiment is provided with a guide slope 12 that gradually slopes away from the center of the combustion chamber 3 from top to bottom. The guide slope 12 is located below the flow guiding assembly 5. The guide slope 12 can guide the combustion gas to the gas hole 51 and / or the gas passage 52.

[0109] When the gas enters the combustion chamber, it flows to both sides of the diversion column 32. Most of the gas flows to both sides of the annular air passage 31, while a small portion flows to the inner wall of the combustion chamber 3 and towards the guide slope. After contacting the guide slope, the flow direction of the gas is guided by the slope. According to the principle of fluid mechanics, when a fluid encounters an inclined surface, it will change its flow path along the inclined direction of the surface. Therefore, the gas will flow along the inclined direction of the guide slope towards the air hole 51 and / or the air passage 52 to replenish the gas in the space above the flow guide assembly 5.

[0110] Preferably, under the action of the guide slope, when the gas flows on the slope, the pressure will gradually increase as the space gradually becomes smaller. This pressure change will cause the gas to flow more smoothly into the gas hole 51 and / or the gas passage 52.

[0111] The guide ramp can accurately guide the gas to the gas port 51 and / or the gas passage 52, avoiding the disorderly flow and diffusion of the gas in the combustion chamber. This allows more gas to effectively enter the gas port 51 and / or the gas passage 52, thereby supplementing the space above the guide assembly, improving the gas delivery efficiency, and ensuring that there is enough gas to participate in the combustion reaction.

[0112] Guided by the inclined plane, the gas can reach the target location more directly, reducing energy loss during the flow process.

[0113] like Figures 1 to 8 As shown, in this embodiment, there are two guide slopes 12, and each is provided on both sides of the main ejector tube 11.

[0114] Specifically, when the guide ramps are set on both sides of the main ejector tube, the gas ejected from the main ejector tube will diffuse in the combustion chamber space. The guide ramps on both sides will guide the diffused gas respectively. Compared with a single ramp, the two guide ramps increase the guiding area of ​​the gas, and more gas can come into contact with the guide ramps and be guided, thereby improving the efficiency of guiding the gas to the gas port 51 and / or the gas passage 52.

[0115] Example 2:

[0116] like Figures 9 to 13As shown, the difference between this embodiment and embodiment 1 is that the tail end of the first arc segment 54 in this embodiment is provided with a downwardly bent first spoiler 541, and the tail end of the second arc segment 55 is provided with a downwardly bent second spoiler 551.

[0117] When the gas flows in the annular gas channel, it is guided by the first and second arc segments, changing the originally turbulent flow direction. This allows the gas to flow more orderly along the arc trajectory, converging or dispersing towards specific areas of the annular gas channel, thus initially adjusting the distribution of the gas.

[0118] When the gas flows through the arc section to the tail end, the first and second baffles begin to function. In normal airflow, a relatively stable laminar flow state is formed. However, the downward-bending first and second baffles disrupt this laminar flow state. When the gas flows to the baffles, the baffles block part of the gas flow, causing the gas to generate vortices and turbulence. These vortices and turbulence mix with the surrounding gas. Under this mixing effect, the gas can diffuse and exchange more fully, thereby achieving a more uniform gas distribution.

[0119] Specifically, in fluid mechanics, when gas flows in an annular gas channel, the gas near the wall forms a relatively stable laminar boundary layer. The gas velocity in this boundary layer is low, and the mixing degree with the surrounding gas is poor. The downward-bent structure of the first and second baffles can be directly inserted into the laminar boundary layer. When the gas flows to the baffle, the baffle will hinder the normal flow of the gas, causing the originally stable laminar boundary layer to be destroyed. The gas in the destroyed laminar boundary layer will interact with the surrounding airflow to form a turbulent region.

[0120] The presence of a baffle changes the flow direction and velocity distribution of the gas. When the gas passes around the baffle, a low-pressure area is formed behind it. The surrounding gas quickly fills this low-pressure area, generating vortices. These vortices continuously collide and mix with the surrounding gas, further aggravating the turbulence. As the gas continues to flow, these vortices and turbulence gradually spread to a larger area, making the gas mixing in the entire flow field more complete.

[0121] By generating vortices and turbulence, the first and second spoilers allow the combustion gas to come into more full contact with the air. The larger the contact area between the combustion gas and the air, the easier the combustion reaction is to occur and the faster the reaction speed will be. This means that more combustion gas can react with oxygen in a short time and release more energy, thereby improving combustion efficiency.

[0122] By using deflectors and baffles, the gas is distributed more evenly, allowing it to come into more complete contact with and mix with the surrounding air. This uniform mixing ensures that the gas in each localized area burns under a suitable air-fuel ratio, resulting in a more complete combustion reaction, releasing more energy, and improving combustion efficiency.

[0123] like Figures 9 to 13 As shown, the first baffle 541 in this embodiment is provided with at least one first vent hole 542, and the second baffle 551 is provided with at least one second vent hole 552. When the gas flows in the annular gas channel and encounters the first baffle 541 and the second baffle 551, some of the gas will pass through the first vent hole 542 and the second vent hole 552. These vent holes play a role in diverting the flow, dispersing the gas that was originally concentrated to impact the baffle. During the process of the gas passing through the vent holes, the flow speed of the gas will change, and the pressure will also be reduced to a certain extent. This diversion and pressure reduction effect can prevent the formation of a high-pressure zone in front of the baffle due to excessive accumulation of gas, so that the gas can pass around the baffle more smoothly and continue to flow.

[0124] The gas flowing through the vents will cross-flow with the gas behind the spoiler. At the outlet of the vents, the high-speed gas will generate strong shearing action with the surrounding gas, thus forming small-scale vortices and turbulence. These small-scale vortices and turbulence will further promote the mixing of the gas. The uneven gas concentration that may have existed in front of the spoiler is improved by the secondary mixing effect of the vents, making the gas distribution in the entire flow field more uniform.

[0125] Preferably, vents at different locations can guide the gas flow in different directions, thereby regulating the airflow distribution within the entire annular air passage. For example, setting more or larger vents in specific areas of the baffle can allow more gas to flow into that area, balancing the gas flow and pressure in different areas and ensuring uniform and stable airflow within the entire annular air passage.

[0126] Preferably, the secondary mixing effect brought about by the vent hole makes the mixture of gas and air more complete. More uniform mixing means that gas molecules and oxygen molecules can come into contact more frequently, thereby increasing the rate and completeness of the combustion reaction. More gas can be fully burned in the combustion chamber, releasing more energy and thus improving combustion efficiency.

[0127] Because the vents regulate the airflow distribution, the temperature and concentration fields within the combustion chamber become more uniform. This uniform environment promotes stable combustion reactions, avoids incomplete or excessive combustion in certain areas, and further improves combustion efficiency.

[0128] The diversion and pressure reduction effects reduce the pressure in front of the spoiler and lower the impact force on the spoiler. This not only extends the service life of the spoiler but also reduces vibration and damage caused by excessive force on the spoiler, thus reducing equipment maintenance costs and failure risks.

[0129] By adjusting the airflow distribution, the vent makes the flow of gas in the annular air passage smoother, reducing the impact and wear of the airflow on the air passage wall. This helps protect the air passage structure and improves the reliability and stability of the entire combustion equipment.

[0130] Preferred, such as Figures 9 to 13 As shown, at least one third vent 543 is provided at the connection between the first arc segment 54 and the first spoiler 541 in this embodiment, and at least one fourth vent 553 is provided at the connection between the second arc segment 55 and the second spoiler 551.

[0131] Specifically, when the airflow passes through the connection between the arc section and the spoiler, a certain low-pressure area will be formed in this area due to the change in flow direction and the obstruction of the spoiler. The presence of the third vent 543 and the fourth vent 553 allows some of the combustion gas to be supplemented to the low-pressure area from inside the arc section through these vents. This not only balances the pressure in this area, but also guides the airflow to flow in the designed direction, avoiding airflow turbulence and backflow.

[0132] The gas flowing out from the third vent 543 and the fourth vent 553 will form a strong mixture with the mainstream gas near the connection point. Due to the special position of the vent, the mixing here can be strengthened in the key area where the arc section and the spoiler are prone to uneven airflow. Through this local mixing, the gas concentration and velocity differences that may exist in this area are improved, making the gas more evenly distributed across the cross-section of the entire annular gas channel.

[0133] When the gas passes through the third vent 543 and the fourth vent 553, its flow rate and pressure will change. According to Bernoulli's principle, the design of the orifice diameter and shape can control the flow rate and energy of the gas. Appropriate flow rate and energy regulation can affect the flow characteristics of the mainstream gas, such as increasing the turbulence of the mainstream gas, thereby further promoting the mixing of gas and air and improving combustion efficiency.

[0134] By enhancing local mixing and regulating airflow energy, the gas and air are mixed more thoroughly in the combustion chamber. A more uniform mixing state facilitates full contact between gas molecules and oxygen molecules, thereby accelerating the combustion reaction and enabling more gas to burn completely in the combustion chamber, releasing more energy and thus improving combustion efficiency.

[0135] Preferably, the first arc-shaped segment 54 is perpendicular to the first spoiler 541, and the second arc-shaped segment 55 is perpendicular to the second spoiler 55.

[0136] Because the spoiler is perpendicular to the curved section, the airflow is forced to change direction when it encounters the spoiler, changing from the original direction along the curved section to spreading to the sides or other directions. This change and diffusion increases the turbulence of the airflow, allowing the fuel and air to mix better.

[0137] Vertically positioned spoilers create a unique pressure distribution around them. On the windward side of the spoiler, airflow is obstructed, and pressure increases; while on the leeward side, a low-pressure zone forms. This pressure difference causes complex flow patterns to form around the spoiler and in the curved section, further enhancing the mixing effect. Simultaneously, this adjustment in pressure distribution helps balance the pressure within the entire annular airflow channel, resulting in more stable airflow.

[0138] As airflow moves along the curved section, a boundary layer forms on the wall. Vertically positioned spoilers can disrupt this boundary layer at appropriate locations, causing it to separate prematurely. After boundary layer separation, the airflow forms vortices and turbulence, increasing the contact area and mixing opportunities between the combustion gas and air. By controlling the location and degree of boundary layer separation, the mixing effect and flow characteristics of the airflow can be optimized.

[0139] Vertically positioned spoilers significantly increase the intensity of airflow turbulence, allowing the fuel gas and air to be thoroughly stirred and mixed within the annular air passage. Turbulence breaks the laminar flow of the fuel gas and air, promoting diffusion and exchange between molecules, resulting in a more uniform mixture. This more uniform mixing improves combustion efficiency, allowing the fuel gas to react more fully with oxygen and release more energy.

[0140] After encountering the spoiler, the airflow spreads in different directions, increasing the contact area between the gas and the air. A larger contact area means that more gas molecules and oxygen molecules can collide with each other, improving the rate and completeness of the combustion reaction.

[0141] The design, where the first arc segment is perpendicular to the first spoiler and the second arc segment is perpendicular to the second spoiler, is relatively simple and easy to manufacture and install. This simple structure can reduce the manufacturing cost and installation difficulty of the equipment.

[0142] The vertically oriented structure makes the surfaces of the spoilers and curved sections easy to clean and maintain. After the equipment has been running for a period of time, staff can easily inspect and maintain these components to ensure the equipment's normal operation.

[0143] In other embodiments, the spoiler and the arc segment are at a certain angle. When the airflow flows along the arc segment and encounters the inclined spoiler, the airflow will generate an oblique flow component under the guidance of the spoiler. This not only increases the turbulence of the airflow, but also causes the airflow to deviate in a specific direction, thereby achieving fine control over the airflow mixing and flow direction.

[0144] The tilt setting allows for flexible adjustment of the airflow mixing effect and flow direction. At the same time, the tilt setting may reduce the resistance of the spoiler to the airflow and reduce energy loss.

[0145] Alternatively, the spoiler itself can be designed in a curved shape, which can be combined with the arc section to form a more complex airflow channel.

[0146] Curved spoilers allow airflow to flow along their curved surfaces, creating more complex flow patterns. The airflow is subjected to centrifugal force and pressure gradient on the curved surfaces, thereby increasing the degree of turbulence and mixing effect.

[0147] This design allows for efficient airflow mixing in a smaller space. The curved spoiler can guide airflow more effectively, reducing dead zones and backflow areas, and improving mixing efficiency.

[0148] You can choose the appropriate design based on your actual needs.

[0149] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. An infrared burner, characterized in that: The device includes a burner body (1), which has a combustion chamber (3) inside. A perforated infrared combustion plate (4) is correspondingly arranged on the top of the combustion chamber (3). A main ejector tube (11) communicating with the combustion chamber (3) is provided on one side of the burner body (1). A flow guiding component (5) is provided in the combustion chamber (3) between the output end of the main ejector tube (11) and the perforated infrared combustion plate (4). The tail end of the flow guiding component (5) is spaced apart from the side of the combustion chamber (3) away from the main ejector tube (11) to form a shape. The gas passage (12) is formed. The flow guide assembly (5) can restrict the rise of the gas in the combustion chamber (3) near the main ejector tube (11) and guide the gas in the combustion chamber (3) near the main ejector tube (11) to the side of the combustion chamber (3) away from the main ejector tube (11), and guide it to the porous infrared combustion plate (4) through the gas passage (12). The flow guide assembly (5) is provided with a gas passage unit, which can guide the gas located below the flow guide assembly (5) to the porous infrared combustion plate (4).

2. An infrared burner according to claim 1, characterized in that: The flow guiding component (5) includes a flow guiding plate (50).

3. An infrared burner according to claim 2, characterized in that: The guide vane (50) is arranged parallel to the bottom wall of the combustion chamber (3).

4. An infrared burner according to claim 1, characterized in that: The combustion chamber (3) includes an annular air passage (31) and a flow divider (32), the flow divider (32) being located in the middle region of the annular air passage (31).

5. An infrared burner according to claim 4, characterized in that: The output end of the main ejector tube (11) extends into the annular airway (31), and the central axis of the main ejector tube (11) intersects with the center of the diversion column (32).

6. An infrared burner according to claim 4, characterized in that: The guide plate (50) is arc-shaped and includes a first arc segment (54) and a second arc segment (55) disposed on both sides of the annular air passage (31), and the first arc segment (54) and the second arc segment (55) respectively abut against the outer wall of the diversion column (32).

7. An infrared burner according to claim 6, characterized in that: The tail end of the first arc segment (54) is provided with a first spoiler (541) that bends downwards, and the tail end of the second arc segment (55) is provided with a second spoiler (551) that bends downwards.

8. An infrared burner according to claim 4, characterized in that: The diversion column (32) is provided with an assembly through hole (321), and the assembly through hole (321) is equipped with a center burner assembly (2). The center burner assembly (2) includes a center gas supply channel (21) and a burner cap (22) detachably connected to its top.

9. An infrared burner according to claim 8, characterized in that: The top of the flame cap (22) is threadedly connected to the top of the central gas supply channel (21).

10. An infrared burner according to claim 1, characterized in that: The air passage unit includes a plurality of air holes (51) provided on the flow guide assembly (5); and / or, the air passage unit includes an air passage (52) formed between the outer wall of the flow guide assembly (5) and the inner wall of the combustion chamber (3) with a certain distance.

Images