Fire grate, gas water heater and processing method of fire grate

Abstract

The application discloses a fire grate, a gas water heater and a processing method of the fire grate. The fire grate comprises a leading channel, a switching channel and a distribution chamber which are sequentially communicated. The distribution chamber is used for supplying gas to a fire hole of the fire grate. A plurality of first pressing tables are recessed to the distribution chamber on the side surface of the fire grate. In the length direction of the fire grate, the plurality of first pressing tables are located on the side of the distribution chamber close to the switching channel, and the plurality of first pressing tables are sequentially and spacedly arranged along the length direction of the fire grate. In the width direction of the fire grate, the chamber width of the distribution chamber at each first pressing table is smaller than the chamber width of other regions of the distribution chamber except the first pressing tables. In the direction from the first end to the second end of the distribution chamber, the depth dimension of each first pressing table is sequentially reduced. By arranging the plurality of first pressing tables on the fire grate, the chamber width dimension of the distribution chamber corresponding to each first pressing table is also relatively independent, the stability of the fire grate after mass production is enhanced, and the mold repair frequency of the processing mold is reduced.

Description

Technical Field

[0001] This invention relates to the field of gas water heater technology, and particularly to a burner, a gas water heater, and a method for processing the burner. Background Technology

[0002] Currently, household gas water heaters are mainly divided into bottom-drum water heaters and top-extraction water heaters. In a bottom-drum water heater, the fan is located at the bottom of the heater, while in a top-extraction water heater, the fan is located at the top. Generally, the burner of a water heater consists of multiple burners. Each burner introduces gas into the system through an injection channel, a transfer channel, and a distribution chamber, where it mixes with air before finally flowing out through the burner holes at the outlet to achieve combustion.

[0003] The burner is the core component of a gas water heater, and the quality of the burner's burner plate directly determines the water heater's combustion efficiency and reliability. When designing a burner, the uniformity of the flame at the burner's outlet and the stability of the burner's performance during mass production are the two most important indicators for evaluating a burner.

[0004] Therefore, in order to control the uniformity of gas flow from the injector channel and the transfer channel to the distribution chamber, and to avoid a large gas flow rate near the transfer channel and a small gas flow rate far away from the transfer channel, an inwardly recessed structure (pressure platform structure) is formed by locally pressing inward on the surface of the burner. This creates a slit in a local part of the distribution chamber, compressing the local width of the distribution chamber and achieving the purpose of balancing the gas flow rate at various points in the distribution chamber.

[0005] However, existing pressure stages are single or continuous, uniform, and symmetrical, making it impossible to finely reconstruct and optimize the three-dimensional flow field on the cross-section of the transition cavity. Especially under non-design conditions (such as low or high loads), this simple structure has limited effect on improving airflow distribution, and eddies are easily generated near the walls and corners, leading to uneven gas distribution. Therefore, existing split-flow chambers cannot achieve fine gas distribution in three-dimensional space, exhibiting poor adaptability to wide load conditions and high sensitivity to local flow fields due to their simple structure.

[0006] Furthermore, while this stamping process can ensure the uniformity of the flame in the prototype stage of the burner, after mass production of tens of thousands of burners, the slight dimensional variations caused by the wear of the stamping die can lead to significant changes in the gas performance of some burners due to dimensional fluctuations. This can result in serious problems such as excessive flue gas, resonance, and shell burning in the entire machine using this burner, thus affecting the quality of the manufactured products. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art in the mass production of gas water heater burners, where individual cases are prone to large quality problems and the pressure table structure has limited effect on improving the airflow distribution in the diversion chamber. The present invention provides a burner, a gas water heater and a method for processing the burner.

[0008] The present invention solves the above-mentioned technical problems through the following technical solution:

[0009] A burner for a gas water heater includes an ejector channel, a transfer channel and a diversion chamber connected in sequence, the diversion chamber for supplying gas to the burner holes of the burner, and a plurality of first pressure plates recessed into the diversion chamber on the side surface of the burner.

[0010] Along the length of the fire bar, a plurality of first pressure platforms are located on the side of the diversion chamber near the transfer channel, and the plurality of first pressure platforms are arranged at intervals along the length of the fire bar.

[0011] In the width direction of the burner, the chamber width of the diversion chamber at each of the first pressure plates is smaller than the chamber width of the diversion chamber in other areas besides the first pressure plates. Furthermore, the depth of each of the first pressure plates decreases sequentially from the first end to the second end of the diversion chamber. This burner achieves the purpose of balancing the gas flow rate throughout the diversion chamber by providing multiple recessed first pressure plates on the side of the diversion chamber near the transfer channel, thereby compressing the chamber width at that location.

[0012] First, by arranging these first pressure plates sequentially at intervals along the length of the burner, the chamber width dimensions of the diversion chamber corresponding to each first pressure plate are relatively independent. This reduces the probability that the chamber width dimensions of these first pressure plates will simultaneously shift upward or downward. That is, the forming dimensions of some first pressure plates are biased downward due to the stamping equipment and punches, while the forming dimensions of other first pressure plates are biased upward due to the stamping equipment and punches. The two can complement each other, keeping the airflow near the transfer channel of the diversion chamber relatively uniform and stable. This reduces the impact of the dimensional deviation of a single first pressure plate caused by the stamping equipment and punches on the overall gas uniformity, enhances the stability of the burner after mass production, and reduces the frequency of mold repair.

[0013] Secondly, these first pressure platforms are arranged sequentially at intervals along the length of the fire bar to form a flow channel with a continuous wave-shaped cross-section. This makes the width of the diversion chamber narrower than other areas, while guiding the gas flowing through the first pressure platform, making the gas distribution more uniform.

[0014] Furthermore, by adjusting the depth dimensions of these first pressure platforms, the first pressure platform near the first end has a larger depth, while the first pressure platform near the second end has a smaller depth. Multiple first pressure platforms with different depth dimensions work together, achieving a division of labor in guiding the gas flow from macroscopic rectification to microscopic guidance. This effectively eliminates the boundary layer and corner eddies near the wall of the traditional transition cavity, achieving a uniform gas height distribution across the entire channel cross-section. Specifically, when the burner is under low load (the gas flow through the burner is relatively small), the gas is more likely to turn and flow upstream (towards the second end) of the diversion chamber. This allows the other pressure platforms upstream to dominate the gas flow control, and the wider upstream chamber ensures stable gas flow under low load. However, under high load (when the gas flow is relatively large), the gas is less likely to turn during flow, thus flowing more downstream (towards the first end) of the diversion chamber. The flow-limiting effect of each first pressure platform on the gas increases, and the deeper first pressure platform closer to the first end has a greater effect on the gas flow as the load increases. Therefore, by using the synergistic effect of multi-stage pressure stations, the uniformity of gas distribution in the horizontal direction is ensured, allowing the burner to adapt to both low-load and high-load conditions, thus significantly expanding the high-efficiency operating range.

[0015] Preferably, the two ends of the diversion chamber along the length of the fire bar are a first end and a second end, respectively, and the first end of the diversion chamber is located closer to the transfer channel than the second end;

[0016] In the direction from the first end to the second end of the flow divider chamber, the width of each of the first pressure plates decreases sequentially.

[0017] This structural design adjusts the horizontal width of each first pressure plate so that a wider first pressure plate can provide greater resistance to the gas flowing through it, while a shorter first pressure plate can provide less resistance. This is to accommodate the characteristic that there is more gas closer to the first end and less gas closer to the second end in the flow distribution chamber, making the gas flowing through each first pressure plate more uniform.

[0018] Preferably, the height dimension of each of the first pressure platforms decreases sequentially from the first end to the second end of the diversion chamber.

[0019] This structural design adjusts the vertical height of each first pressure station, allowing the taller first pressure station to provide greater resistance to the gas flowing through it, while the shorter first pressure station provides less resistance. This is to accommodate the characteristic that there is more gas closer to the first end and less gas closer to the second end in the distribution chamber, making the gas flowing through each first pressure station more uniform.

[0020] Preferably, in the direction from the first end to the second end of the diversion chamber, the lower ends of each of the first pressure platforms rise sequentially.

[0021] This structural design adjusts the lower position of each first pressure plate to match the flow direction of the gas at that location, thus avoiding obstruction of the gas flow to the second end and making the gas distribution between the first and second ends of the diversion chamber more uniform.

[0022] Preferably, the upper ends of each of the first pressing platforms are flush.

[0023] This structural design adjusts the upper position of each first pressure plate to ensure that the distance between the upper end of each first pressure plate and the upper flame hole is the same, resulting in a more uniform gas distribution.

[0024] Preferably, the width dimension of each of the first pressure tables is greater than its height dimension.

[0025] Preferably, the side surface of the fire bar also has a second pressure plate recessed into the diversion chamber, the second pressure plate being located on the side of the diversion chamber near the transfer channel, and the first pressure plate being located within the range of the second pressure plate.

[0026] In this structural design, a second pressure plate recessed into the diversion chamber is provided on the side surface of the burner, and each first pressure plate is located within the range of the second pressure plate. This allows for the control of gas flow rate by setting the first pressure plate, while further setting a larger range of second pressure plates to assist these first pressure plates in controlling the gas flow rate on the side of the diversion chamber near the transfer channel, thus preventing excessive gas flow rate at that location.

[0027] Preferably, each of the first pressure platforms is located on the side of the second pressure platform closest to the transfer channel.

[0028] In this structural design, the first pressure platform is located on the side of the second pressure platform near the transfer channel. This increases the gas resistance on the side of the distribution chamber near the transfer channel and avoids obstructing the gas resistance on the side of the distribution chamber away from the transfer channel, resulting in a more uniform gas distribution.

[0029] Preferably, the two ends of the diversion chamber along the length of the fire bar are a first end and a second end, respectively, and the first end of the diversion chamber is located closer to the transfer channel than the second end;

[0030] In the direction from the first end to the second end of the flow divider chamber, the height of the second pressure platform gradually decreases.

[0031] This structural design adjusts the vertical height of the second pressure platform so that the side of the second pressure platform located at the first end provides relatively greater resistance to the gas flowing through it, while the side located at the second end provides relatively less resistance. This is to adapt to the characteristic that there is more gas closer to the first end and less gas closer to the second end in the diversion chamber, making the gas flowing through the second pressure platform more uniform.

[0032] Preferably, the upper end of the second pressing platform is flush with the surface.

[0033] This structural design adjusts the position of the upper part of the second pressure platform to make the distance between the upper part of the second pressure platform and the upper flame hole the same, resulting in a more uniform gas distribution.

[0034] Preferably, in the width direction of the fire bar, the first pressure plates are arranged in pairs and respectively disposed on both sides of the fire bar, and the width of the diversion chamber at the first pressure plate is located between the two first pressure plates arranged in pairs.

[0035] In this structural design, corresponding first pressure plates are set on both sides of the burner to compress the width of the diversion chamber, thereby achieving the purpose of balancing the gas flow rate at various points in the diversion chamber.

[0036] Preferably, the flame holes of the fire bar include main flame holes and flame stabilizing holes, with the main flame holes arranged on the top surface of the fire bar and the flame stabilizing holes arranged on the side surface of the fire bar.

[0037] This structural design incorporates flame stabilizing holes to assist the main burner and ensure stable combustion of the flame. These flame stabilizing holes are located on the side surface of the fire bar. This serves two purposes: firstly, it prevents the consumption of gas at the main burner, thus avoiding affecting its firepower; secondly, it reduces the gas flow rate at the flame stabilizing holes, allowing the flames within the stabilizing holes to burn more stably.

[0038] Preferably, the first pressure plate is circular or elliptical in shape on the side surface of the fire bar.

[0039] This structural design allows the first press to be easily processed by stamping.

[0040] A gas water heater, the gas water heater comprising the burner as described above.

[0041] This gas water heater employs the aforementioned burner design, using a first pressure plate to compress the width of a localized section of the distribution chamber, thereby balancing the gas flow rate throughout the distribution chamber. Simultaneously, multiple spaced-apart first pressure plates ensure that the chamber width at each pressure plate is relatively independent, maintaining a relatively uniform and stable airflow near the transfer channel. This reduces the impact of dimensional deviations caused by individual pressure plates and punches on the overall gas uniformity, enhancing the burner's stability after mass production and reducing the frequency of mold repairs. Furthermore, these first pressure plates form a continuous wave-shaped flow channel, guiding the gas flow through them and resulting in a more uniform gas distribution.

[0042] A method for processing a fire grill, used to process the fire grill as described above, the method comprising the following steps:

[0043] The side surface of the fire bar is simultaneously stamped by multiple punches of a single stamping machine to form each of the first pressure plates corresponding to the multiple punches on the side surface of the fire bar.

[0044] The processing method of this burner involves simultaneously stamping the side surface of the burner with multiple punches on a single stamping machine to produce individual first pressure plates corresponding to these punches. Since these first pressure plates are produced by multiple punches, the chamber width dimensions of these first pressure plates are relatively independent. This reduces the probability of simultaneous upward or downward deviations in the chamber width dimensions of these first pressure plates. Specifically, the stamped dimensions of some first pressure plates are biased downwards due to their corresponding punches, while the stamped dimensions of others are biased upwards. These two factors complement each other, ensuring relatively uniform and stable airflow in the diversion chamber near the transition channel. This reduces the impact of dimensional deviations caused by individual first pressure plates on the overall gas uniformity, enhancing the stability of the burner after mass production. It also reduces the frequency of mold repair, and even if mold repair is required, the relatively independent punches are easier to repair and replace.

[0045] Preferably, the punch corresponds one-to-one with the first pressure table.

[0046] By making the punches correspond one-to-one with the first pressure plates, that is, each punch is corresponding to a single first pressure plate, compared with other schemes that correspond punches to multiple first pressure plates, the dimensions of these first pressure plates are more independent, and the probability of upward or downward offset is further reduced.

[0047] A method for processing a fire grill, used to process the fire grill as described above, the method comprising the following steps:

[0048] The side surface of the fire bar is stamped sequentially by multiple punches from different stamping equipment to form each first pressure plate corresponding to the multiple punches on the side surface of the fire bar.

[0049] The processing method of this burner involves stamping the side surface of the burner using different punches on different stamping equipment, thereby producing individual first pressure plates corresponding to the punches of these stamping equipment. Because these first pressure plates are produced using different stamping equipment, the chamber width dimensions of these first pressure plates are relatively independent. This reduces the probability of simultaneous upward or downward deviations in the chamber width dimensions of these first pressure plates. Specifically, the forming dimensions of some first pressure plates are biased downwards due to the corresponding stamping equipment, while the forming dimensions of others are biased upwards. These two factors complement each other, keeping the airflow near the transfer channel in the diversion chamber relatively uniform and stable. This reduces the impact of dimensional deviations of individual first pressure plates caused by the stamping equipment on the overall gas uniformity, enhancing the stability of the burner after mass production. This also reduces the frequency of mold repair, and even if mold repair is required, the relatively independent stamping equipment is easier to repair and replace.

[0050] Preferably, before stamping is performed by different stamping devices, all stamping devices are positioned with the burner by the same positioning structure located on the surface of the burner.

[0051] Before stamping the burner with different stamping equipment, the same positioning structure on the surface of the burner is used to position the burner to ensure accurate stamping position under multiple stamping conditions and reduce the impact of position error on gas flow.

[0052] Preferably, the positioning structure is located on the side surface of the fire bar and is disposed close to the first pressure table.

[0053] By setting the positioning structure for positioning on the side surface of the firebox and close to the first pressure plate, the positioning accuracy is improved, and the impact of position error on gas flow is further reduced.

[0054] Preferably, the punch corresponds one-to-one with the first pressure table.

[0055] By making the punches correspond one-to-one with the first pressure plates, that is, each punch is corresponding to a single first pressure plate, compared with other schemes that correspond punches to multiple first pressure plates, the dimensions of these first pressure plates are more independent, and the probability of upward or downward offset is further reduced.

[0056] Preferably, the punch corresponds one-to-one with the stamping equipment.

[0057] By matching the punches to the stamping equipment one-to-one, that is, setting one punch on each stamping equipment to process the first pressure plate on the fire bar, compared with the scheme of using multiple punches on the stamping equipment to process multiple first pressure plates, the dimensions of these first pressure plates are more independent, and the probability of upward or downward displacement is further reduced.

[0058] The positive and progressive effects of this invention are as follows:

[0059] In the process of manufacturing the burner, gas water heater and burner, multiple first pressure plates are set on the burner to compress the width of the local chamber of the diversion chamber, thereby achieving the purpose of balancing the gas flow rate at each part of the diversion chamber.

[0060] By making the chamber width dimensions of each first pressure plate in the diversion chamber relatively independent, the airflow near the transfer channel in the diversion chamber remains relatively uniform and stable. This reduces the impact of dimensional deviations caused by the stamping equipment on the overall gas uniformity of a single first pressure plate, thereby enhancing the stability of the burner after mass production and reducing the frequency of mold repair.

[0061] These first pressure platforms form a flow channel with a continuous wave-shaped cross-section, which guides the gas flowing through the first pressure platform and makes the gas distribution more uniform.

[0062] By adjusting the depth dimensions of these first pressure platforms, the first pressure platform near the first end has a larger depth, while the first pressure platform near the second end has a smaller depth. Multiple first pressure platforms with different depth dimensions work together to achieve a division of labor and cooperation in the flow of gas and gas from macroscopic rectification to microscopic guidance. This effectively eliminates the boundary layer and corner eddies near the wall of the traditional transition cavity, and achieves a uniform distribution of gas height across the entire channel cross-section. This allows the burner to adapt to both low-load and high-load conditions, thereby significantly expanding the high-efficiency operating range. Attached Figure Description

[0063] Figure 1 This is a three-dimensional structural diagram of the fire briquette according to Embodiment 1 of the present invention.

[0064] Figure 2 This is a schematic diagram showing the flow direction of the gas within the burner.

[0065] Figure 3 This is a horizontal cross-sectional view of the fire briquette of Embodiment 1 of the present invention.

[0066] Figure 4 This is a schematic diagram of the structure of the first pressure plate of the fire bar in Embodiment 1 of the present invention.

[0067] Figure 5 This is a schematic diagram of the planar structure of the fire briquette in Embodiment 1 of the present invention.

[0068] Figure 6 for Figure 5 A magnified view of part D in the middle.

[0069] Figure 7a This is a top view of the fire duct structure of Embodiment 1 of the present invention.

[0070] Figure 7b for Figure 7a A schematic diagram of the flame nozzle plate in the image.

[0071] Figure 8 This is a vertical cross-sectional view of the firebox in Embodiment 1 of the present invention, wherein the flame stabilizer is hidden.

[0072] Figure 9 This is a horizontal cross-sectional view of the fire briquette in Embodiment 2 of the present invention.

[0073] Figure 10 for Figure 9 A magnified view of part E in the middle.

[0074] Figure 11 This is a schematic diagram of the processing state of the fire plate processing method of Embodiment 3 of the present invention.

[0075] Figure 12 This is a schematic diagram (a) of the processing state of the fire plate processing method of Embodiment 4 of the present invention.

[0076] Figure 13 This is a schematic diagram (II) of the processing state of the fire plate processing method of Embodiment 4 of the present invention.

[0077] Figure 14 This is a schematic diagram (III) of the processing state of the fire plate processing method of Embodiment 4 of the present invention.

[0078] Explanation of reference numerals in the attached figures:

[0079] Flame rack 100, length direction A, width direction B, height direction C, ejector channel 10, transfer channel 20, diversion chamber 30, first end 301, second end 302, flame hole 40, main flame hole 401, flame stabilizer hole 402, first pressure plate 50, width direction a, depth direction b, height direction c, second pressure plate 60, flame stabilizer plate 70, flame nozzle plate 80, punch 200, stamping equipment 300. Detailed Implementation

[0080] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0081] Example 1

[0082] This invention provides a burner 100, which is used to stack with other burners 100 to form the burner of a gas water heater. For example... Figures 1-6 As shown, the burner 100 includes an ejector channel 10, a transfer channel 20, and a diversion chamber 30 connected in sequence. The ejector channel 10, the transfer channel 20, and the diversion chamber 30 are interconnected so that the gas entering the burner 100 from the ejector channel 10 can eventually flow to the burner hole 40 located on the top surface of the burner 100.

[0083] The flow path of the gas within the burner 100 is as follows: Figure 2 As shown by the solid arrow in the diagram. In this embodiment, the ejector channel 10 is arranged along the length direction A of the burner 100. Therefore, after the gas enters the ejector channel 10, it flows horizontally and ejects external air through the throat structure of the ejector channel 10, achieving gas-air mixing. The gas enters the transfer channel 20 along the length direction A within the ejector channel 10. The flow path of the transfer channel 20 is "J" shaped, used to change the flow of the gas from the length direction A to the height direction C, and deliver it to the distribution chamber 30. The distribution chamber 30 is used for mixing the gas and air and distributing the gas to each burner hole 40 at the top of the burner 100. The gas-air mixture flows out from the burner holes 40 and burns, achieving the purpose of gas heating. The uniformity of the gas flowing out from each burner hole 40 directly affects the performance of the burner 100.

[0084] like Figure 1 As shown, multiple first pressure platforms 50 recessed towards the diversion chamber 30 are provided on the side surface of the burner 100. Along the length direction A of the burner 100, these first pressure platforms 50 are all located on the side of the diversion chamber 30 near the transfer channel 20, and these first pressure platforms 50 are arranged sequentially at intervals along the length direction A of the burner 100. Meanwhile, as... Figure 3 As shown, in the width direction B of the fire bar 100, the chamber width D5 of the diversion chamber 30 at these first pressure plates 50 is smaller than the chamber width of the diversion chamber 30 in other areas besides each first pressure plate 50 (e.g., D6 or D7).

[0085] The burner 100 uses multiple first pressure platforms 50 recessed into the diversion chamber 30 on the side of the diversion chamber 30 near the transfer channel 20 to compress the chamber width of the diversion chamber 30 at that location, thereby balancing the gas flow rate throughout the diversion chamber 30. Specifically, by all positioning these first pressure platforms 50 on the side of the burner 100 near the transfer channel 20 (i.e.,... Figure 1 and Figure 2 Located on the lower left side of the burner 100, it is relatively closer to the transfer channel 20, making the regulation effect on the gas flow entering the burner 100 more obvious.

[0086] In this embodiment, the width, depth, and height directions of the first pressure platform 50 correspond to the length direction A, width direction B, and height direction C of the fire bar 100. Specifically, as follows... Figure 1 and Figure 4 As shown, the width direction a of the first pressure platform 50 corresponds to the length direction A of the fire rack 100, the depth direction b of the first pressure platform 50 corresponds to the width direction B of the fire rack 100, and the height direction c of the first pressure platform 50 corresponds to the height direction C of the fire rack 100. The external dimension of the first pressure platform 50 in the width direction a is the width dimension, the external dimension in the depth direction b is the depth dimension, and the external dimension in the height direction c is the height dimension.

[0087] By arranging these first pressure platforms 50 sequentially at intervals along the length direction A of the fire bar 100, the chamber width dimensions of the diversion chamber 30 corresponding to each of the first pressure platforms 50 are relatively independent, thereby reducing the probability that the depth dimensions of these first pressure platforms 50 will simultaneously shift upward or downward, and further reducing the probability that the chamber width dimensions formed between the first pressure platforms 50 on both sides will simultaneously shift upward or downward. Specifically, by setting the first pressure platforms 50 in a relatively opposing manner, the forming dimensions of some first pressure platforms 50 are lower in the depth direction due to the stamping equipment 300 and the punch 200, while the forming dimensions of other first pressure platforms 50 are higher in the depth direction due to the stamping equipment 300 and the punch 200. The two can complement each other, so that the airflow in the diversion chamber 30 near the transfer channel 20 remains relatively uniform and stable. This reduces the probability that the individual processed burner 100 will simultaneously shift upward or downward in the chamber width dimension, thereby reducing the impact of the dimensional deviation of the individual first pressure platform 50 caused by the stamping equipment 300 and the punch 200 on the overall gas uniformity. This enhances the stability of the burner 100 after mass production, reduces the sensitivity of the structure to processing tolerances and thermal deformation, ensures the consistency of product performance in mass production, and reduces the frequency of mold repair.

[0088] In addition, such as Figure 3 As shown, these first pressure platforms 50 are arranged sequentially at intervals along the length direction A of the fire bar 100 to form a flow channel with a continuous wave-shaped cross section. This allows the width of the diversion chamber 30 to be narrowed relative to other areas, while guiding the gas flowing through the first pressure platform 50 to make the gas distribution more uniform.

[0089] In this embodiment, as Figure 3As shown, first pressure platforms 50 are provided on both the front and back side surfaces of the burner 100. These first pressure platforms 50 are arranged in pairs, such that the chamber width D5 of the diversion chamber 30 at the first pressure platform 50 is located between the two paired first pressure platforms 50. This structural arrangement, by providing corresponding first pressure platforms 50 on both the front and back sides of the burner 100, compresses the chamber width of the diversion chamber 30, thereby achieving the purpose of balancing the gas flow rate at various points in the diversion chamber 30. In other embodiments, the first pressure platforms 50 may be provided only on one side surface of the burner 100, so that these first pressure platforms 50, together with the other side surface of the burner 100, compress the chamber width of the diversion chamber 30 at that point, thereby achieving the purpose of controlling the gas flow rate.

[0090] like Figure 3 As shown, the two ends of the flow divider chamber 30 along the length direction A are the first end 301 and the second end 302, respectively. The first end 301 of the flow divider chamber 30 is closer to the transfer channel 20, resulting in a relatively large gas flow rate, while the second end 302 is farther from the transfer channel 20, resulting in a relatively small gas flow rate. Therefore, each of the first pressure platforms 50 is basically distributed near the first end 301 of the flow divider chamber 30. Specifically, in this embodiment, the shape of the first pressure platform 50 on the side surface of the burner 100 is close to an ellipse to facilitate processing by stamping. In other embodiments, the shape of the first pressure platform 50 can also be a circle or other shapes with more arcs, such as a triangle or quadrilateral with arc-shaped corners. By using a shape with arc-shaped corners, a uniform transition at the boundary is achieved, avoiding gas vortices and also preventing stress concentration at the corners, which can cause tearing during processing. This embodiment uses an elliptical structure for the first pressure platform 50, but it is not a limitation. Figure 4 As shown, the edge region of the elliptical shape has rounded corners that are more than twice the wall thickness t of one side of the firebox 100, to ensure a smooth transition of the gas as it passes through the first pressure plate 50.

[0091] Based on setting multiple first pressure platforms 50 to reduce the impact of dimensional deviations of a single first pressure platform 50 caused by the stamping equipment 300 and the punch 200 on the overall gas uniformity of the firebox 100, there are also preferred settings for the relative dimensions between the first pressure platforms 50: such as Figure 6 As shown, in the direction from the first end 301 to the second end 302 of the diversion chamber 30, the width of each first pressure platform 50 decreases sequentially. Specifically, in this embodiment, four first pressure platforms 50 are respectively provided from the first end 301 to the second end 302 of the diversion chamber 30. Using four first pressure platforms 50 can not only completely cover the side of the burner 100 near the transfer channel 20 (covering the area with the most gas through the pressure platforms), but also take into account manufacturability (setting too many pressure platforms may not be able to be stamped and formed).

[0092] like Figure 4 As shown, the first pressing platform 50 has the following dimensions: width dimension in the width direction a, depth dimension in the depth direction b, and height dimension in the height direction c.

[0093] like Figure 10 As shown, the depth dimensions of the four first pressure platforms 50 are D1, D2, D3, and D4, respectively, with D1 > D2 > D3 > D4. By setting four first pressure platforms 50, the flowing gas is rectified, and the structural rigidity of the transition area connecting the transfer channel 20 and the diversion chamber 30 is strengthened, reducing unexpected changes in size.

[0094] By adjusting the depth dimensions of each first pressure platform 50, the first pressure platform 50 near the first end 301 has a larger depth, while the first pressure platform 50 near the second end 302 has a smaller depth. Multiple first pressure platforms 50 with different depth dimensions work together, achieving a division of labor in guiding the gas flow from macroscopic rectification to microscopic guidance. This effectively eliminates the near-wall boundary layer and corner eddies in traditional transition chambers, achieving a uniform gas height distribution across the entire channel cross-section. Simultaneously, the depth of each relatively independent first pressure platform 50 gradually changes. This flow channel design, which gradually varies the chamber width D5 at the first pressure platform 50, maintains good rectification performance under different gas flow rates. For example, under low load (relatively low gas flow), the gas is more likely to deflect during flow towards the second end 302 of the diversion chamber 30, allowing other upstream pressure stations to dominate gas flow control. This chamber is relatively wider (e.g., D7), ensuring stable gas flow under low load. However, under high load (relatively high gas flow), the gas is less likely to deflect during flow, thus flowing more towards the first end 301 of the diversion chamber 30. The flow-limiting effect of each first pressure station 50 on the gas increases, and the higher the load, the greater the effect of the deeper first pressure station 50 closer to the first end 301. Therefore, through the coordinated action of multiple pressure stations, the uniformity of gas distribution in the horizontal direction is ensured, allowing the burner to adapt to both low and high load conditions simultaneously, thereby significantly expanding its efficient operating range.

[0095] Meanwhile, better uniformity of gas distribution can be directly translated into uniformity of flame height, avoiding local high temperatures or incomplete combustion, thereby improving thermal efficiency and reducing emissions of pollutants such as nitrogen oxides (NOx) and carbon monoxide (CO).

[0096] like Figure 6As shown, the widths of the four first pressure platforms 50 are L1, L2, L3, and L4, respectively, with L1 > L2 > L3 > L4. By setting four first pressure platforms 50, the structural rigidity of the transition area connecting the transfer channel 20 and the diversion chamber 30 is enhanced, reducing unintended dimensional variations. By adjusting the horizontal width of each first pressure platform 50, the first pressure platform 50 near the first end 301 has a longer width, providing relatively greater resistance to the gas flowing through it, while the first pressure platform 50 near the second end 302 has a shorter width, providing relatively less resistance to the gas flowing through it. This adapts to the characteristic of the diversion chamber 30 where there is more gas closer to the first end 301 and less gas closer to the second end 302, making the gas flow through each first pressure platform 50 more uniform. Four first pressure platforms 50 are set close to the transfer channel 20, that is, in the area with a large gas flow rate, so as to cover the area with the most gas. At the same time, manufacturability is taken into account to avoid the problem that the transition area between the transfer channel 20 and the diversion chamber 30 cannot be formed when there are too many first pressure platforms 50.

[0097] like Figure 6 As shown, the height of each first pressure platform 50 decreases sequentially from the first end 301 to the second end 302 of the diversion chamber 30. Specifically, the heights of the four first pressure platforms 50 from the first end 301 to the second end 302 of the diversion chamber 30 are H1, H2, H3, and H4, respectively, with H1 > H2 > H3 > H4. By adjusting the vertical height of each first pressure platform 50, the first pressure platform 50 near the first end 301 has a longer height, providing relatively greater resistance to the gas flowing through it. This alleviates the gas vortex problem caused by the short height of the first pressure platform 50 at that location, achieving a smooth flow effect. Conversely, the first pressure platform 50 near the second end 302 has a shorter height, providing relatively less resistance to the gas flowing through it. This is to accommodate the characteristic of the diversion chamber 30 where there is more gas closer to the first end 301 and less gas closer to the second end 302, making the gas flow through each first pressure platform 50 more uniform.

[0098] In this embodiment, the width dimension of each first pressing platform 50 is greater than its height dimension, that is, L1>H1, L2>H2, L3>H3, and L4>H4.

[0099] In this embodiment, as the depth of each first pressure platform 50 decreases sequentially, the width and height of each first pressure platform 50 also decrease sequentially. The dimensions of the first pressure platforms 50 on the same side of the burner are different, enabling refined reconstruction of the three-dimensional gas flow field at that location. Through the coordinated operation of multiple pressure platforms of different sizes, a division of labor is achieved from macroscopic rectification to microscopic guidance of the airflow, effectively eliminating the near-wall boundary layer and corner eddies of traditional transition chambers. This results in a uniform distribution of gas height across the entire channel cross-section, further improving burner performance.

[0100] With the depth, width, and height dimensions of each first pressing platform 50 decreasing sequentially, there are also preferred placement schemes for the first pressing platforms 50: such as Figure 6 As shown, in the direction from the first end 301 to the second end 302 of the diversion chamber 30, the lower ends of each first pressure platform 50 are raised sequentially, so that the lower end positions of these first pressure platforms 50 match the flow direction of the gas at that location, avoiding obstruction of the gas flow to the second end 302, and making the gas distribution between the first end 301 and the second end 302 of the diversion chamber 30 more uniform. At the same time, the upper ends of each first pressure platform 50 remain parallel to the plane where the upper flame hole 40 is located, making the gas distribution more uniform.

[0101] like Figure 1 and Figure 2 As shown, a second pressure platform 60 recessed into the diversion chamber 30 is also provided on the side surface of the fire bar 100. This second pressure platform 60 is also located on the side of the diversion chamber 30 near the transfer channel 20 (i.e., near the first end 301 of the diversion chamber 30), and all four first pressure platforms 50 are disposed within the range of the second pressure platform 60. By setting the second pressure platform 60, the chamber width of the diversion chamber 30 at this location is first narrowed (e.g., ...). Figure 3 As shown, the chamber width at the second pressure platform 60 is narrowed to D6. Therefore, by further setting the second pressure platform 60 and placing the four first pressure platforms 50 within the range of the second pressure platform 60, the gas flow rate is coarsely adjusted by the second pressure platform 60 and finely adjusted by each of the first pressure platforms 50. The larger area of ​​the second pressure platform 60 controls the gas flow rate on the side of the diversion chamber 30 near the transfer channel 20, preventing excessive gas flow rate at that location. In this embodiment, four first pressure platforms 50 are set on the second pressure platform 60 to avoid setting too many first pressure platforms (five or more), which would make it difficult to process and shape based on the second pressure platform 60, effectively reducing the processing difficulty.

[0102] In this embodiment, the height of the second pressure platform 60 gradually decreases from the first end 301 to the second end 302 of the diversion chamber 30, and the shape of the second pressure platform 60 is triangular. This structural adjustment allows the side of the second pressure platform 60 located at the first end 301 to provide relatively greater resistance to the gas flowing through it, while the side located at the second end 302 provides relatively less resistance. This adapts to the characteristic of the diversion chamber 30 where there is more gas closer to the first end 301 and less gas closer to the second end 302, making the gas flowing through the second pressure platform 60 more uniform. Simultaneously, to ensure that the distance between the upper end of the second pressure platform 60 and the upper flame hole 40 is the same, the gas distribution is more uniform; in this embodiment, the upper end of the second pressure platform 60 is flush. Along the length direction A of the burner 100, the width ratio of the area with the first pressure platform 50 and the area without the first pressure platform 50 and the second pressure platform 60 is 30%-50%. The area with the pressure platform occupies 30%-40% of the width of the entire burner adjustment zone. The first pressure platform 50 is set parallel to the flame nozzle of the burner 100 so that the gas is ejected perpendicular to the flame nozzle surface after being guided by the first pressure platform 50. By ensuring that the width of the first pressure platform 50 is sufficiently long to cover a larger area, the uniformity of airflow is effectively controlled, and the airflow can be stably regulated under various loads. The pressure platform is deeper where the airflow is high, and its main function is to equalize the flow. The pressure platform is shallower where the airflow is low, and its function is to assist in equalizing the flow, so as to ensure that the flame of the burner 100 is uniform and stable in all operating conditions between the maximum and minimum. The coordinated work of multiple pressure platforms of different sizes realizes the division of labor and cooperation in the flow from macroscopic rectification to microscopic guidance, effectively eliminating the boundary layer near the wall surface and corner eddies in the transition cavity of traditional burners, and achieving a high uniform distribution of gas height across the entire flow channel cross-section.

[0103] The four first pressure plates 50 can also be elongated in shape. The first pressure plates 50 have no sharp corners around them, so that the gas flows smoothly. The four first pressure plates 50 are located in the center of the triangular area of ​​the second pressure plate 60 and do not contact the edges of the triangular area. This avoids the edge of the plate being torn during manufacturing and ensures the smoothness of the pressure plate edges.

[0104] In other embodiments, the first pressure plate 50 can also adopt other shapes to achieve the functions of limiting the flow of gas and ensuring uniform flame, such as using a wavy pressure plate or a triangular pressure plate. When using a first pressure plate 50 with other shapes such as a wavy pressure plate or a triangular pressure plate, it is necessary to ensure that the depth of the first pressure plate 50 near the first end 301 is relatively deeper, while the depth of the first pressure plate 50 near the second end 302 is relatively shallower, in order to ensure the overall uniformity of gas flow. In addition, the larger the width of the first pressure plate 50, the larger the area that restricts the gas flow. Therefore, when the width of the first pressure plate 50 is large, the depth of the first pressure plate 50 can be reduced accordingly. Furthermore, the length, width and depth dimensions of each first pressure plate 50 can be adjusted according to the gas load range of the burner 100. If the gas load range of the burner 100 is high, more first pressure plates 50 can be set, and the depth of the first pressure plate 50 near the first end 301 can be further increased, while the depth of the first pressure plate 50 near the second end 302 can be reduced, increasing the depth difference between the first pressure plates 50 at both ends.

[0105] In other embodiments, each of the first pressure platforms 50 is also distributed at other positions on the second pressure platform 60, for example, in the middle or lower position of the second pressure platform 60 in the height direction C. The lower placement of the first pressure platforms 50 is to increase the distance between the first pressure platforms 50 and the flame outlet plate 80 of the flame bar 100, allowing the gas guided by the first pressure platforms 50 to flow a relatively longer distance to the flame holes 40, thereby increasing the gas buffer distance and enabling the gas to flow more smoothly out of the flame outlet plate 80 after being combed by each of the first pressure platforms 50.

[0106] like Figure 1 , Figure 7a and Figure 7b As shown, in this embodiment, the flame bar 100 also includes a flame nozzle plate 80 located at the top of the main body and flame stabilizing plates 70 located on both sides. The flame holes 40 specifically include a main flame hole 401 and a flame stabilizing hole 402, as shown... Figure 8 As shown, the main flame port 401 is located on the top flame port plate 80, with its opening facing upwards. The flame stabilizing port 402 is located on the side of the fire bar 100, with its opening horizontally positioned. The flame stabilizing port 402 assists the main flame port 401, ensuring stable combustion of the flame in the main flame port 401. The flame stabilizing port 402 is positioned on the side surface of the fire bar 100 to prevent the consumption of gas at the main flame port 401, thus avoiding affecting the flame intensity of the main flame port 401. Furthermore, it reduces the gas flow rate at the flame stabilizing port 402, allowing its own flame to burn more stably. Simultaneously, a flame stabilizing plate 70 covers the outer surface of the flame stabilizing port 402, forming a slit between the fire bar 100 body and the flame stabilizing plate 70. This allows the flame at the flame stabilizing port 402 to rise along the slit within the flame stabilizing plate 70, acting on the root of the flame in the main flame port 401, achieving better stable combustion. Figure 7b As can be seen, the dimensions of the main flame holes 401 on the flame nozzle plate 80 are not the same. Specifically, in this embodiment, the width W1 of the main flame holes 401 located on both sides (near the first end 301 and the second end 302) is wider, while the width W2 of the main flame hole 401 located in the middle is narrower. This structural arrangement can reduce the size of the flame holes at the head and tail of the flame bar 100, thereby reducing the flame size at both ends and preventing the flame from contacting the gradually narrowing inner heat insulation plate of the flame bar 100. In other embodiments, the flame size at both ends of the main flame holes 401 can also be reduced by changing other dimensional parameters, such as reducing the length or diameter of the main flame hole 401 at that location.

[0107] In addition, the present invention also provides a gas water heater that uses the above-mentioned burner 100 as the burner of the gas water heater. The first pressure plate 50 of the burner 100 compresses the local chamber width of the diversion chamber 30, thereby achieving the purpose of balancing the gas flow at each point of the diversion chamber 30. The chamber width dimensions of the diversion chamber 30 corresponding to each first pressure plate 50 are also relatively independent, so that the airflow near the transfer channel 20 of the diversion chamber 30 remains relatively uniform and stable. This reduces the impact of the dimensional deviation of a single first pressure plate 50 caused by the stamping equipment 300 on the overall gas uniformity, and enhances the stability of the burner 100 after mass production, thereby reducing the frequency of mold repair.

[0108] Furthermore, the first pressure plates 50 of the burner 100 form a continuous wave-shaped flow channel, which throttles the gas flowing through the first pressure plate 50 and combs the gas flowing through the gap between adjacent first pressure plates 50, making the gas distribution more uniform. This achieves a better flow uniformity effect, allowing for more complete combustion of local gas in the gas water heater, improving combustion efficiency while reducing exhaust emissions. The excellent uniformity of gas distribution directly translates into uniform flame height, avoiding localized high temperatures or incomplete combustion, thereby improving thermal efficiency and reducing emissions of pollutants such as nitrogen oxides (NOx) and carbon monoxide (CO). As shown in Table 1 below, based on the core improvements to the combustion components, uniform and stable flame height is achieved under high load conditions (e.g., 18 liters), laying the foundation for superior flue gas emission. Therefore, when operating at reduced load (e.g., reduced to 16 liters), the combustion reaches a very complete level, resulting in extremely high utilization of oxygen per unit. This allows the water heater to maintain high efficiency and stability in the combustion process even when matched with a smaller flue pipe (e.g., a 40 / 60 small diameter pipe) with a significantly reduced air intake. This ensures that the final flue gas emissions fully meet the most stringent regulatory requirements, solving the long-standing technical dilemma in the industry where conventional balanced flue water heaters cannot achieve emission standards with smaller pipe diameters such as 40 / 60.

[0109] Table 1. Flue gas emission parameters for different water heater products

[0110]

[0111] Example 2

[0112] This embodiment also provides a fire bar 100, whose structure is largely the same as that of the fire bar 100 in Embodiment 1. The main difference is that the depth of each first pressure plate 50 of the fire bar 100 in this embodiment is different. Figure 9 As shown, in the direction from the first end 301 to the second end 302 of the diversion chamber 30, the depth dimensions of the four first pressure platforms 50 decrease sequentially.

[0113] Preferably, each first pressing platform has a depth of 50 a. n+1 =a n +x (mm), preferably, the depth difference between two adjacent first pressure platforms 50 is in the range of 0.05-0.2mm. In this example, a1=0.7, x=0.05, that is, the depth of the first pressure platform 50 from left to right is 0.85 / 0.8 / 0.75 / 0.7mm. This is the depth on one side. The depth on both sides needs to be multiplied by 2. The first pressure platform 50 located at the first end 301 is pressed deeper than the second pressure platform 60, so that the distance between the two first pressure platforms 50 (i.e., the chamber width) is relatively small, which can provide relatively greater resistance to the gas flowing through this area. The first pressure platform 50, located further away from the first end 301, is pressed into the second pressure platform 60 to a shallower depth, resulting in a relatively larger gap (i.e., chamber width) between the two first pressure platforms 50. This provides relatively less resistance to the gas flowing through this area, adapting to the characteristic that there is more gas closer to the first end 301 and less gas closer to the second end 302 within the diversion chamber 30. This makes the gas flow through each first pressure platform 50 more uniform. Thus, when the gas volume increases or decreases, the flame size increases or decreases uniformly. Under low load, the first pressure platform 50 near the transfer channel 20 dominates; under high load, multiple first pressure platforms 50 work together, significantly widening the high-efficiency operating range and greatly increasing the upper and lower limits of the burner 100's power, thereby increasing the power adjustment range of the gas water heater containing the burner 100. Currently, the maximum load of a single-row burner 100 is 2.43-2.58KW, while the burner 100 in this embodiment can reach 2.83KW, and in special cases, it can reach 3KW, which is 16.5%-23.4% higher than the maximum load of a conventional single-row burner 100. Because the upper limit power of the gas water heater is high, a higher water consumption can be achieved with the same number of burners. At the same time, because the lower limit power of the gas water heater is low, the risk of excessively hot water in summer can be avoided.

[0114] Example 3

[0115] The present invention also provides a method for processing a burner 1, which is used to process the burner 100 provided in Example 1 or 2.

[0116] The processing method of this fire grill includes the following steps:

[0117] When processing the first pressure table 50 on the surface of the fire bar 100, the side surface of the fire bar 100 is simultaneously stamped by multiple punches 200 of a single stamping machine 300 to form each first pressure table 50 corresponding to the multiple punches 200 on the side surface of the fire bar 100.

[0118] The processing method of the fire bar involves using multiple punches 200 on a single stamping machine 300 to simultaneously stamp the side surface of the fire bar 100, so as to process each first pressure plate 50 corresponding to these punches 200. Since these first pressure plates 50 are processed by multiple punches 200, the chamber width dimensions of these first pressure plates 50 are relatively independent. This reduces the probability that the chamber width dimensions of these first pressure plates 50 will simultaneously shift upward or downward. That is, the forming dimensions of some first pressure plates 50 are biased downward due to the corresponding punches 200, while the forming dimensions of other first pressure plates 50 are biased upward due to the corresponding punches 200. The two can complement each other, so that the airflow in the diversion chamber 30 near the transfer channel 20 remains relatively uniform and stable. This reduces the impact of the dimensional deviation of a single first pressure plate 50 caused by the punches 200 on the overall gas uniformity, enhances the stability of the burner 100 after mass production, reduces the frequency of mold repair, and even if mold repair is required, the relatively independent punches 200 can be removed from the stamping equipment 300 individually, making them easier to repair and replace.

[0119] It is understandable that in this embodiment, four independent punches 200 are used for stamping. During the mass production of hundreds of thousands of pieces, the punches 200 will gradually wear down, resulting in dimensional deviations. In this embodiment, since the depth, width, and height of the four first pressure plates 50 gradually decrease from left to right, the diameter of the corresponding punches 200 also gradually decreases. Therefore, the severity of the wear on the punches increases from left to right. In actual production, the punches 200 will be replaced when they reach a fixed degree of wear. Thus, the replacement time of the punches 200 is different, and only one set of punches 200 is replaced at a time. This avoids the four first pressure plates 50 from being too large or too small at the same time, thereby preventing the flow uniformity effect in the area where the first pressure plate 50 is located from exceeding the limit, and thus ensuring the stability of combustion performance during mass production.

[0120] Among them, such as Figure 11 As shown, multiple punches 200 are respectively connected to the stamping equipment 300, and there may be a certain gap between each punch 200. In other embodiments, the non-stamping portions of the multiple punches 200 may also be in contact with each other.

[0121] Specifically, the correspondence between the multiple punches 200 of a single stamping machine 300 and the first pressing table 50 can be a one-to-one correspondence (one independent punch 200 processes one first pressing table 50), or other correspondences can be used (one independent punch 200 processes two or more first pressing tables 50). For example, in this embodiment, such as Figure 11 As shown, the stamping equipment 300 is equipped with three independent punches 200 to stamp four first pressure plates 50 on the surface of the burner 100. The two punches 200 on the left correspond one-to-one with the two first pressure plates 50, and the punch 200 on the right corresponds one-to-two with the two first pressure plates 50. In other embodiments, the specific correspondence between the punches 200 and the first pressure plates 50 can be set as needed.

[0122] If there is a one-to-one correspondence between each independent punch 200 and the first pressure table 50, then compared with other schemes that allow a single independent punch 200 to process multiple first pressure tables 50, the one-to-one correspondence can make the dimensions of these first pressure tables 50 more independent, and at the same time, the probability of upward or downward offset due to errors in the punch 200 is further reduced.

[0123] Example 4

[0124] This embodiment also provides a method for processing a fire bar, which is roughly the same as that in embodiment 3. The main difference is that in this embodiment, the fire bar is processed by using different stamping equipment 300 to process each of the first pressure plates 50 on the fire bar 100.

[0125] The processing method of this fire grill includes the following steps:

[0126] When processing the first pressure table 50 on the surface of the fire bar 100, the side surface of the fire bar 100 is stamped sequentially by multiple punches 200 of different stamping equipment 300 to form each first pressure table 50 corresponding to the multiple punches 200 on the side surface of the fire bar 100.

[0127] Specifically, such as Figure 12 As shown, in this embodiment, the first stamping machine 300 has a punch 200, which corresponds to a first pressure plate 50 on the surface of the burner 100. The stamping machine 300 controls the punch 200 to press down, thus forming the first pressure plate 50 on the surface of the burner 100. Then, as... Figure 13 As shown, the second stamping machine 300 has a punch 200, which corresponds to a first pressure plate 50 on the surface of the burner 100. The stamping machine 300 controls the punch 200 to press down, thus machining a second first pressure plate 50 on the surface of the burner 100. Finally, as... Figure 14As shown, the third stamping machine 300 has two independent punches 200, which correspond one-to-one with the two first pressure plates 50 on the surface of the fire bar 100. By controlling the punches 200 to press down, the third and fourth first pressure plates 50 are simultaneously processed on the surface of the fire bar 100.

[0128] The processing method of the fire bar involves stamping the side surface of the fire bar 100 with different punches 200 on different stamping equipment 300, so as to process each first pressure table 50 corresponding to the punches 200 of these stamping equipment 300. Since these first pressure plates 50 are processed by different stamping equipment 300, the depth dimensions of each first pressure plate 50 in the depth direction b are relatively independent. This reduces the probability that the depth dimensions of these first pressure plates 50 will simultaneously shift upward or downward. Consequently, the chamber width dimensions at these first pressure plates 50 are also relatively independent, further reducing the probability that the chamber width dimensions at these first pressure plates 50 will simultaneously shift upward or downward. That is, the forming dimensions (i.e., the depth dimensions of the first pressure plates 50) of some first pressure plates 50 are biased downward due to the corresponding stamping equipment 300, while the forming dimensions of other first pressure plates 50 are biased upward due to the corresponding stamping equipment 300. The two can complement each other, keeping the airflow near the transfer channel 20 in the diversion chamber 30 relatively uniform and stable. This reduces the impact of the dimensional deviation of a single first pressure plate 50 caused by the stamping equipment 300 on the overall gas uniformity, enhances the stability of the burner 100 after mass production, reduces the frequency of mold repair, and even if mold repair is required, the relatively independent stamping equipment 300 is easier to repair and replace.

[0129] Specifically, in the processing method of this burner 100, before different stamping equipment 300 stamp the surface of the burner 100, these stamping equipment 300 are all positioned with the burner 100 through the same positioning structure located on the surface of the burner 100. This ensures accurate stamping position under multiple stamping conditions and reduces the impact of positional error on gas flow. Preferably, the positioning structure should be set on the side surface of the burner 100 and close to the first pressure table 50 to improve positioning accuracy and further reduce the impact of positional error on gas flow.

[0130] Specifically, the correspondence between the stamping equipment 300 and the punch 200 can be a one-to-one correspondence, as in the first and second stamping equipment 300 of this embodiment, or a one-to-many correspondence, as in the third stamping equipment 300. In this case, by making the punch 200 correspond one-to-one with the stamping equipment 300, that is, by setting one punch 200 on each stamping equipment 300 to process the first pressing table 50 on the burner 100, compared with the scheme of using multiple punches 200 on the stamping equipment 300 to process multiple first pressing tables 50, the forming dimensions (i.e., the depth dimensions of the first pressing table 50) of these first pressing tables 50 are more independent, and the probability of upward or downward offset is further reduced.

[0131] Furthermore, regarding the correspondence between the punches 200 and the first pressing tables 50, in this embodiment, each punch 200 and each first pressing table 50 has a one-to-one correspondence. By making the punches 200 and the first pressing tables 50 correspond one-to-one, compared to other schemes where the punches 200 correspond to multiple first pressing tables 50, the forming dimensions of these first pressing tables 50 are more independent, and the probability of upward or downward offset is further reduced. Of course, in other embodiments, the specific correspondence between the punches 200 and the first pressing tables 50 can be set as needed, that is, one punch 200 can correspond to multiple first pressing tables 50.

[0132] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A burner for a gas water heater, the burner comprising an ejector channel, a transfer channel, and a distribution chamber connected in sequence, the distribution chamber for supplying gas to the burner orifices, characterized in that, The side surface of the fire bar has a plurality of first pressure plates recessed into the diversion chamber; Along the length of the fire bar, a plurality of first pressure platforms are located on the side of the diversion chamber near the transfer channel, and the plurality of first pressure platforms are arranged at intervals along the length of the fire bar. In the width direction of the fire bar, the chamber width of the diversion chamber at each of the first pressure plates is smaller than the chamber width of the diversion chamber in other areas except for each of the first pressure plates, and the depth dimension of each of the first pressure plates decreases sequentially in the direction from the first end to the second end of the diversion chamber. The side surface of the fire bar also has a second pressure plate recessed into the diversion chamber. The second pressure plate is located on the side of the diversion chamber near the transfer channel, and the first pressure plate is located within the range of the second pressure plate.

2. The fire grill as described in claim 1, characterized in that, The two ends of the diversion chamber along the length of the fire bar are the first end and the second end, respectively, and the first end of the diversion chamber is located closer to the transfer channel than the second end; In the direction from the first end to the second end of the diversion chamber, the width dimension of each of the first pressure platforms decreases sequentially; and / or, In the direction from the first end to the second end of the flow divider chamber, the height of each of the first pressure platforms decreases sequentially.

3. The fire grill as described in claim 2, characterized in that, In the direction from the first end to the second end of the diversion chamber, the lower ends of each of the first pressure platforms rise sequentially; And / or, the upper ends of each of the first pressure plates are flush; And / or, the width dimension of each of the first pressure plates is greater than its height dimension.

4. The fire grill as described in claim 1, characterized in that, Each of the first pressure stations is located on the side of the second pressure station closest to the transfer channel.

5. The fire grill as described in claim 1, characterized in that, The two ends of the diversion chamber along the length of the fire bar are the first end and the second end, respectively, and the first end of the diversion chamber is located closer to the transfer channel than the second end; In the direction from the first end to the second end of the flow divider chamber, the height of the second pressure platform gradually decreases.

6. The fire grill as described in claim 5, characterized in that, The upper end of the second pressing platform is flush with the surface.

7. The fire briquette as described in any one of claims 1-6, characterized in that, In the width direction of the fire bar, the first pressure plates are arranged in pairs and respectively disposed on both sides of the fire bar. The width of the diversion chamber at the first pressure plate is located between the two first pressure plates arranged in pairs.

8. The fire rack according to any one of claims 1-6, characterized in that, The firebox has fire holes including main fire holes and flame stabilizing holes. The main fire holes are arranged on the top surface of the firebox, and the flame stabilizing holes are arranged on the side surface of the firebox. And / or, The first pressure plate is circular or elliptical in shape on the side surface of the fire bar.

9. A gas water heater, characterized in that, The gas water heater includes a burner as described in any one of claims 1-8.

10. A method for processing a fire grill, characterized in that, It is used to process the fire bar as described in any one of claims 1-8, and the processing method of the fire bar includes the following steps: The side surface of the fire bar is simultaneously stamped by multiple punches of a single stamping machine to form each of the first pressure plates corresponding to the multiple punches on the side surface of the fire bar.

11. The processing method of the fire grill as described in claim 10, characterized in that, Each punch corresponds to one of the first pressure plates.

12. A method for processing a fire grill, characterized in that, It is used to process the fire bar as described in any one of claims 1-8, and the processing method of the fire bar includes the following steps: The side surface of the fire bar is stamped sequentially by multiple punches from different stamping equipment to form each first pressure plate corresponding to the multiple punches on the side surface of the fire bar.

13. The processing method of the fire grill as described in claim 12, characterized in that, Before stamping is performed by different stamping equipment, each stamping equipment is positioned with the burner by the same positioning structure located on the surface of the burner.

14. The processing method of the fire grill as described in claim 13, characterized in that, The positioning structure is located on the side surface of the fire bar and is positioned close to the first pressure plate.

15. The method for processing the fire grill as described in any one of claims 12-14, characterized in that, Each punch corresponds to one of the first pressure plates; And / or, the punch corresponds one-to-one with the stamping equipment.

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