Updraft high-efficiency fierce fire staggered combustion system

Abstract

The utility model discloses a high efficiency's fierce fire staggered floor combustion system of upper air inlet, include: furnace head subassembly, furnace base, blast box, air blower and fierce fire air outlet structure, blast box and air blower set up in the below of range panel, the blast outlet of fierce fire air outlet structure is located the above of range panel, towards the injection port of injection channel, blast box is equipped with the blast connecting port of connecting fierce fire air outlet structure, and air blower can send air through blast box to the blast outlet of fierce fire air outlet structure, the utility model discloses, break through upper air inlet space limit, realize efficient blast, the core innovation is in the ingenious adoption " blast source lower -positioned, air -supply path up -going, air -out point upper -positioned " split type design. Through special fierce fire air outlet structure, air is accurately delivered to the injection channel injection port near the above of range panel, realizes the core function of forced air supply. This design perfectly adapts the structural characteristics of all upper -positioned of upper air inlet burner injection system.

Description

Technical Field

[0001] This utility model relates to the field of burner technology, and in particular to a high-efficiency, high-fire staggered combustion system with top air intake. Background Technology

[0002] In the current market for household gas stoves, the burner structure employing an independent internal and external dual-ring gas supply system has become the industry standard. This structure controls the inner and outer ring flames separately through two sets of independent injectors and mixing chambers, offering excellent flame control performance and proven reliability. It can meet the daily cooking needs of most families, thus dominating the market.

[0003] However, for cooking scenarios like stir-frying in Chinese cuisine that demand maximum heat output, the heat load limit of traditional dual-ring burners is often insufficient. While commercial high-power burners can provide powerful heat loads, they typically rely on bulky and complex forced air supply systems with high noise and cost, making them difficult to apply directly to household cooktops where space, cost, and user experience are critical.

[0004] To achieve near-commercial-grade high-intensity flame performance in a home environment, an improved solution has emerged (such as the technology disclosed in patents like CN 111189048A), which integrates a blower into a traditional bottom-intake dual-ring burner. This solution, by placing a blower under the cooktop panel and using a specific gas distribution structure, forces air and gas to be supplied to the outer ring injector, thereby significantly improving the intensity and heat load of the outer ring flame.

[0005] However, after in-depth research and experimental verification, the applicant discovered significant limitations in the aforementioned blower enhancement scheme: its core design is adapted to a "bottom-intake" burner structure. In this structure, the injector, mixing chamber, and nozzle are all located below the cooktop panel, providing the necessary installation space for additional components such as the blower box. In contrast, the widely adopted and safer "top-intake" burners have their injectors, mixing chambers, and nozzles positioned above the cooktop panel. This structural design leaves extremely limited space in the upper area, making it impossible to accommodate the complex components such as the blower box required by traditional blower solutions. Therefore, the existing blower enhancement structure, which relies on the space below the cooktop panel, is completely unsuitable for top-intake combustion systems.

[0006] In summary, the market seeks to design a powerful blast system adapted to top-intake burners. Utility Model Content

[0007] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a high-efficiency, high-fire, staggered-layer combustion system with top air intake.

[0008] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a high-efficiency, high-fire staggered combustion system with top air intake, including: a furnace head assembly, a furnace base, a blower box, a blower, and a high-fire air outlet structure.

[0009] The burner assembly is mounted on the burner base and located above the cooktop panel; the burner assembly is provided with an injection channel; the burner base is equipped with a gas nozzle, which faces the injection port of the injection channel;

[0010] The blower box and blower are located below the cooktop panel; the blower outlet of the high-power air outlet structure is located above the cooktop panel, facing the injection port of the injection channel; the blower box is provided with a blower connection port for connecting to the high-power air outlet structure; the blower can deliver air to the blower outlet of the high-power air outlet structure through the blower box.

[0011] Optionally, an even number of air outlets are provided in the horizontal direction of the gas nozzle, symmetrically arranged on both sides of the gas nozzle.

[0012] Optionally, two air outlets are provided in the horizontal direction of the gas nozzle; the two air outlets are angled toward the ejector port of the ejector channel.

[0013] Optionally, the ejector port of the ejector channel has a gradually narrowing funnel-shaped structure; the blower outlet is arranged obliquely toward the throat of the ejector port.

[0014] Optionally, the blower outlet is provided below the gas nozzle, and the blower outlet is inclined toward the ejector port.

[0015] Optionally, the high-powered air outlet structure is an integrally formed upward-extending air outlet channel on the furnace base.

[0016] Optionally, the high-power air outlet structure is an independent air outlet terminal; the air outlet terminal is detachably installed on the blower box or furnace base and is connected to the blower box.

[0017] Optionally, a fitting structure is provided below the air outlet terminal, which can be fitted into the blower box or furnace base.

[0018] Optionally, the intense heat exhaust structure is an exhaust chamber structure formed above the furnace base; the exhaust chamber has multiple blower outlets.

[0019] Optionally, the furnace base is provided with a high-intensity nozzle, which faces the inlet of the ejector channel.

[0020] The beneficial effects of this utility model are:

[0021] 1. Overcoming the limitations of top-intake space for efficient airflow: The core innovation lies in the ingenious use of a split design with a "bottom-mounted air source, upward-flowing air path, and top-mounted air outlet." The blower and blower box are placed below the cooktop panel, fully utilizing cabinet space and solving the fundamental problem of extremely limited space above the burner head assembly, which cannot accommodate a traditional blower box. Simultaneously, a specialized high-powered air outlet structure precisely delivers air to the vicinity of the ejector channel located above the cooktop panel, achieving the core function of forced airflow. This design perfectly complements the top-mounted structure of the top-intake burner ejector system.

[0022] 2. Significantly Enhanced Firepower and Heat Load: By forcibly supplying sufficient air to the injector via a blower, the injection capability and supply of the gas-air mixture are greatly enhanced, especially for the outer ring flame. This directly results in a substantial increase in combustion intensity and heat load, easily achieving the "fierce fire" level required for Chinese stir-frying, thus filling the gap in the extreme firepower of traditional upper-air-intake burners.

[0023] 3. Improve combustion and thermal efficiency: Forced air not only increases the gas volume, but more importantly, it optimizes the flow field inside the injector, improves the uniformity of gas-air mixing, and ensures sufficient and stable excess air coefficient.

[0024] 4. Maintaining the inherent safety advantages of top-intake airflow: This design strictly adheres to the layout principles of top-intake burners, keeping the burner assembly and its air supply path unchanged, thus inheriting the core safety and reliability advantages of the top-intake structure. Placing the relatively large blower and air box below the panel keeps the structure above the burner relatively simple, facilitating cleaning and maintenance, and also meeting the aesthetic requirements of household stoves.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of a blower combustion system according to one embodiment of the present invention;

[0028] Figure 2 for Figure 1 Exploded view of the combustion system;

[0029] Figure 3 for Figure 1 Cross-sectional view of the combustion system;

[0030] Figure 4 This is a schematic diagram of the combustion system according to another embodiment of the present invention;

[0031] Figure 5 for Figure 3 Exploded view of the combustion system;

[0032] Figure 6 for Figure 3 Cross-sectional view of the combustion system.

[0033] Explanation of key component symbols:

[0034] 10. Burner head assembly; 11. Injector channel; 12. Injector port; 20. Burner base; 21. Gas nozzle; 22. High flame nozzle; 23. High flame gas supply channel; 30. Blower box; 31. Blower connection port; 40. Blower; 50. High flame air outlet structure; 51. Blower outlet; 52. Air outlet terminal; 53. Air outlet chamber. Detailed Implementation

[0035] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0036] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0039] Example

[0040] Reference Figures 1 to 6 The high-efficiency, high-fire staggered combustion system with top air intake proposed in this utility model includes: a furnace head assembly 10, a furnace base 20, a blower box 30, a blower 40, and a high-fire air outlet structure 50.

[0041] The burner assembly 10 is installed on the burner base 20 and is located above the cooktop panel; the burner assembly 10 is provided with an injection channel 11; the burner base 20 is equipped with a gas nozzle 21, which faces the injection port 12 of the injection channel 11.

[0042] The blower box 30 and the blower 40 are located below the cooktop panel; the blower outlet 51 of the high-power air outlet structure 50 is located above the cooktop panel, facing the injection port 12 of the injection channel 11; the blower box 30 is provided with a blower connection port 31 for connecting to the high-power air outlet structure 50; the blower 40 can deliver air to the blower outlet 51 of the high-power air outlet structure 50 through the blower box 30.

[0043] The beneficial effects of this utility model are:

[0044] 1. Overcoming the limitations of top-intake space to achieve efficient airflow: The core innovation lies in the ingenious adoption of a split design with "bottom-mounted air source, upward-flowing air path, and top-mounted air outlet." The blower 40 and blower box 30 are placed below the cooktop panel, making full use of the cabinet space and solving the fundamental problem of extremely limited space above the top-intake burner head assembly 10, which cannot accommodate a traditional blower box 30. At the same time, a specialized high-powered air outlet structure 50 precisely delivers air to the vicinity of the injection channel 11 injection port 12 located above the cooktop panel, achieving the core function of forced airflow. This design perfectly adapts to the top-mounted structural characteristics of the top-intake burner injection system.

[0045] 2. Significantly Enhanced Firepower and Heat Load: By forcibly supplying sufficient air to the injector 12 through the blower 40, the injection capability and supply of the gas-air mixture are greatly enhanced, especially for the outer ring flame. This directly leads to a significant increase in combustion intensity and heat load, easily achieving the "fierce fire" level required for Chinese stir-frying, thus filling the gap in the extreme firepower of traditional upper-air-intake burners.

[0046] 3. Improve combustion and thermal efficiency: Forced air not only increases the gas volume, but more importantly, it optimizes the flow field inside the injector, improves the uniformity of gas-air mixing, and ensures sufficient and stable excess air coefficient.

[0047] 4. Maintaining the inherent safety advantages of top-intake airflow: This design strictly adheres to the layout principles of top-intake burners. The burner assembly 10 and the air supply path above it remain unchanged, inheriting the core safety and reliability advantages of the top-intake structure. Placing the relatively large blower 40 and air box below the panel allows the structure above the burner to remain relatively simple, facilitating cleaning and maintenance, and also meeting the aesthetic requirements of household stoves.

[0048] In this embodiment, an even number of air outlets 51 are provided in the horizontal direction of the gas nozzle 21, symmetrically arranged on both sides of the gas nozzle 21. The symmetrically distributed even number of air outlets 51 form a bidirectional balanced air supply, eliminating the ejector deflection caused by unilateral airflow and improving combustion stability.

[0049] Preferably, two blower outlets 51 are provided in the horizontal direction of the gas nozzle 21; the two blower outlets 51 are angled toward the injection port 12 of the injection channel 11. The two blower outlets 51 are angled toward the injection port 12, forming an airflow convergence effect, which gathers in the central area of ​​the injection port 12 and compresses and accelerates the injection of the main gas flow, thereby enhancing the gas suction capacity.

[0050] In this embodiment, the ejector port 12 of the ejector channel 11 has a gradually narrowing funnel-shaped structure; the blower outlet 51 is inclined toward the throat of the ejector port 12. The blower outlet 51 is inclined and aligned with the throat (narrowest part) of the funnel-shaped ejector port 12, which directly increases the flow velocity at the throat, maximizes the ejection efficiency, and reduces energy loss.

[0051] In this embodiment, a blower outlet 51 is provided below the gas nozzle 21, and the blower outlet 51 is inclined toward the injector 12. The blower outlet 51 is vertically placed below the nozzle and sprays upward at an angle, saving lateral space and avoiding interference with the burner assembly 10, which is especially suitable for compact top-intake structures.

[0052] For the outer ring ejector channel 11, which is the main fuel supply channel, more air is needed when the fire is intense. For situations where the outer ring ejector channel 11 and other channels require a large amount of intense air replenishment, the blower outlet 51 can be set on the lateral sides and the lower side of the gas nozzle 21 to form a triangular inclined multi-point blower converging effect towards the throat.

[0053] In this embodiment, the high-intensity flame exhaust structure 50 is an integrally formed upward-extending exhaust channel on the furnace base 20. The high-intensity flame exhaust channel and the furnace base 20 are integrally formed, eliminating the risk of air leakage through connection gaps, simplifying the assembly process, and reducing the failure rate.

[0054] In some embodiments, please refer to Figure 2 and Figure 3 The high-intensity exhaust structure 50 corresponding to the ejector port 12 of the outer ring ejector channel 11 requires the horizontal arrangement of more air outlets 51. The high-intensity exhaust structure 50 is an independent exhaust terminal 52; the exhaust terminal 52 is detachably installed in the blast box 30 or the furnace base 20 and is connected to the blast box 30. The independent and detachable exhaust terminal 52 design facilitates the replacement of the exhaust structure for different furnace heads, improving system adaptability and maintenance convenience. When a platform does not require the high-intensity exhaust structure 50, the exhaust terminal 52 can be replaced with a sealed terminal to close the blast channel.

[0055] Specifically, a fitting structure is provided below the air outlet terminal 52, which can be fitted into the blower box 30 or the furnace base 20. The fitting structure enables the air outlet terminal 52 to be quickly snapped and fixed to the blower box 30 / furnace base 20 without screws, reducing assembly costs.

[0056] In some embodiments, please refer to Figures 4 to 6 The forced-air combustion system. The high-intensity air supply structure 50 is an air supply chamber 53 structure formed above the furnace base 20; the air supply chamber 53 has multiple air outlets 51. The air supply chamber 53 integrates multiple air outlets 51 to form a uniformly distributed air supply, covering the large-size injection port 12, and avoiding excessively strong local airflow. This air supply chamber 53 structure has multiple injection ports 12 on one side, which can simultaneously form multiple air outlets 51, corresponding to the injection ports 12 of multiple injection channels 11 for high-intensity forced-air combustion.

[0057] In this embodiment, the blower box 30 has a flat, box-shaped structure and is attached to the lower side of the burner base 20, located below the cooktop panel. The flat blower box 30 is attached to the lower side of the burner base 20 to maximize the use of the limited height space below the panel and avoid conflict with other components of the cooktop chassis.

[0058] In this embodiment, the furnace base 20 is provided with a high-power nozzle 22, which faces the injection port 12 of the injection channel 11. The addition of the high-power nozzle 22 directly targets the injection port 12, achieving a dual enhanced supply of gas and air, breaking through the bottleneck of traditional single blower for firepower enhancement.

[0059] Specifically, the ejector port 12 of the ejector channel 11 has a gradually narrowing funnel-shaped structure; the high-power nozzle 22 is inclined towards the throat of the ejector port 12. The high-power nozzle 22 is inclined and aligned with the funnel-shaped throat to accurately replenish high-pressure gas. It works in synergy with the blower airflow to form a high-power blower airflow effect that compresses and accelerates the mixing of the main gas flow, effectively improving the gas firepower.

[0060] In this embodiment, multiple ejector channels 11 are provided, and each ejector channel 11 is provided with a corresponding gas nozzle 21, high-power nozzle 22 and air outlet 51. Each ejector channel 11 is independently configured with a gas nozzle 21, a high-power nozzle 22 and an air outlet 51, so that when cooking over high heat, multiple ejector channels 11 can be simultaneously subjected to the effect of high-power combustion and air blowing.

[0061] Furthermore, the furnace base 20 is equipped with a high-pressure gas supply channel 23, which simultaneously connects to multiple high-pressure nozzles 22. A single high-pressure gas supply channel 23 connects to multiple nozzles, simplifying the gas pipeline layout, ensuring consistent gas supply pressure in each channel, and reducing system complexity.

[0062] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A high-efficiency, top-intake, multi-layered combustion system, characterized in that: include: Burner head assembly (10), burner base (20), blower box (30), blower (40) and high-power air outlet structure (50); The burner assembly (10) is installed on the stove base (20) and located above the cooktop panel; the burner assembly (10) is provided with an injection channel (11); the stove base (20) is provided with a gas nozzle (21) and the gas nozzle (21) faces the injection port (12) of the injection channel (11); The blower box (30) and blower (40) are located below the stove panel; the blower outlet (51) of the high-power air outlet structure (50) is located above the stove panel, facing the injection port (12) of the injection channel (11); the blower box (30) is provided with a blower connection port (31) for connecting the high-power air outlet structure (50); the blower (40) can deliver air through the blower box (30) to the blower outlet (51) of the high-power air outlet structure (50).

2. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 1, characterized in that: The blower outlet (51) is provided in an even number in the horizontal direction of the gas nozzle (21), and is symmetrically arranged on both sides of the gas nozzle (21).

3. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 2, characterized in that: Two air outlets (51) are provided in the horizontal direction of the gas nozzle (21); the two air outlets (51) are angled toward the ejector port (12) of the ejector channel (11).

4. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 2, characterized in that: The ejector port (12) of the ejector channel (11) has a gradually narrowing trumpet-shaped structure; the blower outlet (51) is arranged at an angle toward the throat of the ejector port (12).

5. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 1, characterized in that: The blower outlet (51) is provided below the gas nozzle (21), and the blower outlet (51) is inclined toward the ejector port (12).

6. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 1, characterized in that: The high-powered air outlet structure (50) is an integrally formed air outlet channel extending upward on the furnace base (20).

7. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 1, characterized in that: The high-power air outlet structure (50) is an independent air outlet terminal (52); the air outlet terminal (52) is detachably installed on the blower box (30) or the furnace base (20) and is connected to the blower box (30).

8. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 7, characterized in that: The air outlet terminal (52) is provided with a fitting structure below it, which can be fitted into the blower box (30) or the furnace base (20).

9. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 1, characterized in that: The high-powered air outlet structure (50) is an air outlet chamber (53) structure formed above the furnace base (20); the air outlet chamber (53) has multiple air outlets (51).

10. The high-efficiency, high-fire, staggered-layer combustion system with top air intake according to claim 1, characterized in that: The furnace base (20) is provided with a high-powered nozzle (22), which is directed toward the ejector port (12) of the ejector channel (11).

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