Multi-station pot combustion system and cooktop

Abstract

The utility model provides a kind of multiple pot combustion system and cooktop, the multiple pot combustion system includes inner fire cover, outer fire cover and energy-gathering disc;The outer side of the inner fire cover is equipped with first fire hole;The outer fire cover is circular, and is equipped in the outer periphery of the inner fire cover;The outer side of the outer fire cover is equipped with second fire hole;The height of the top surface of the outer fire cover gradually increases from inside to outside;The energy-gathering disc is circular, and is equipped in the outer periphery of the outer fire cover;The height of the top surface of the energy-gathering disc gradually increases from inside to outside.The multiple pot combustion system and cooktop provided by the utility model can form multiple pot effect, improve the heat exchange efficiency of high-temperature flue gas and realize the improvement of energy efficiency.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a multi-stage pot-holding combustion system and stove. Background Technology

[0002] High performance is a core indicator for cooktops; generally, higher performance translates to a greater competitive advantage. Currently, all manufacturers have achieved the maximum heat load allowed by national standards, but significant differences exist in maximum thermal efficiency. Therefore, manufacturers continue to work on improving maximum thermal efficiency based on their own circumstances and solutions. However, improving energy efficiency by further optimizing burner ejection has become increasingly limited. Based on the experience of significantly improving energy efficiency by adding a concentrating plate to the burner, major manufacturers are gradually refining and designing better concentrating plate solutions to achieve energy efficiency leadership. However, simply enlarging the concentrating plate to further improve energy efficiency has also reached a bottleneck, and the effect is no longer significant.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer stationary combustion system that can form a multi-layer stationary effect, improve the heat exchange efficiency of high-temperature flue gas, and achieve energy efficiency improvement.

[0005] Another objective of this invention is to provide a stove that includes the aforementioned multi-layer pot-holding combustion system, which can create a multi-layer pot-holding effect, improve the heat exchange efficiency of high-temperature flue gas, and achieve energy efficiency improvement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-stage combustion system includes an inner burner cap, an outer burner cap, and an energy-concentrating plate; The outer side of the inner flame cover is provided with a first flame outlet hole; The outer flame cap is circular and located around the outer periphery of the inner flame cap; the outer side of the outer flame cap is provided with a second flame outlet; the height of the top surface of the outer flame cap gradually increases from the inside to the outside. The energy-concentrating disk is circular and located on the outer periphery of the outer flame cover; the height of the top surface of the energy-concentrating disk gradually increases from the inside to the outside.

[0007] According to one embodiment of the present invention, the cross-section of the top surface of the outer fire cover is a downwardly concave arc shape.

[0008] According to one embodiment of the present invention, the cross-section of the top surface of the energy-concentrating disk is a downwardly concave arc shape.

[0009] According to one embodiment of the present invention, the top surface of the energy-concentrating disk is provided with an energy-concentrating ring, the cross-section of the energy-concentrating ring is inverted V-shaped; the height of the inner side of the energy-concentrating ring gradually increases from the inside to the outside, and the height of the outer side of the energy-concentrating ring gradually decreases from the inside to the outside.

[0010] According to one embodiment of the present invention, the cross-section of the inner side of the energy-concentrating ring is a downwardly concave arc shape.

[0011] According to one embodiment of the present invention, an annular groove is formed between the outer side of the energy-concentrating ring and the top surface of the energy-concentrating disk, and the cross-section of the groove is V-shaped.

[0012] According to one embodiment of the present invention, the height of the first flame outlet corresponds to the top surface of the outer flame cover; the height of the second flame outlet corresponds to the top surface of the energy-concentrating disk.

[0013] According to one embodiment of the present invention, the energy-concentrating disk includes several transverse partitions, which divide the interior of the energy-concentrating disk into several longitudinally arranged heat-insulating spaces.

[0014] According to one embodiment of the present invention, the outer top end of the energy-concentrating disk is provided with several supports.

[0015] This utility model also provides a stove, including the above-mentioned multi-stage combustion system.

[0016] Compared with the prior art, the advantages and beneficial effects of the embodiments of this utility model are as follows: The multi-layered combustion system and stove provided in this embodiment can create a multi-layered combustion effect, allowing the gas mixture in both the inner and outer burner caps to mix more evenly with primary and secondary air. This improves the utilization rate of primary and secondary air, resulting in a significant reduction in flue gas volume. At this point, provided the flue gas meets national standards, the damper opening and secondary air inlet area can be appropriately reduced to decrease the excess coefficient of primary and secondary air, preventing excessive primary and secondary air from participating in combustion and thus carrying away heat, thereby improving energy efficiency. Simultaneously, thanks to the multi-layered combustion structure, high-temperature flue gas forms multiple vortices between the outer burner cap, the energy-concentrating plate, and the bottom of the cookware. This allows the high-temperature flue gas to continuously circulate and repeatedly conduct heat convection heat exchange on the bottom of the cookware, thereby improving the heat exchange efficiency of the high-temperature flue gas and achieving energy efficiency improvement. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an undue limitation of this utility model. Wherein: Figure 1A schematic diagram of the structure of the multi-stage boiler combustion system provided in this embodiment of the utility model; Figure 2 A cross-sectional schematic diagram of the multi-stage combustion system provided in this embodiment of the utility model; Figure 3 A schematic diagram of the usage status of the multi-stationary combustion system provided in this embodiment of the utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Inner burner cap; 11. First flame outlet; 2. Outer burner cap; 21. Second flame outlet; 3. Concentrating plate; 31. Concentrating ring; 32. Groove; 33. Partition; 34. Support; 4. Cookware. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0020] In the description of this utility model, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0021] like Figure 1 , Figure 2As shown, this embodiment of the invention provides a multi-stage combustion system, including an inner flame cover 1, an outer flame cover 2, and a concentrating plate 3. The outer side of the inner flame cover 1 has a first flame outlet 11 for generating a flame. The outer flame cover 2 is annular and located around the outer periphery of the inner flame cover 1. The outer side of the outer flame cover 2 has a second flame outlet 21 for generating a flame. The height of the top surface of the outer flame cover 2 gradually increases from the inside to the outside. The concentrating plate 3 is annular and located around the outer flame cover 2, and the height of the top surface of the concentrating plate 3 gradually increases from the inside to the outside.

[0022] like Figure 3 As shown, the multi-burner combustion system provided in this embodiment of the present invention has at least two burner structures: The first pot-supporting structure: the outer burner cap pot-supporting structure; the outer burner cap 2 adopts a deep concave design, with the height of the top surface gradually increasing from the inside to the outside. When the stove is burning normally, the flame and high-temperature flue gas of the inner burner cap 1 will flow out along the first flame outlet 11 at an angle and generate positive pressure. Due to the outer burner cap pot-supporting structure, the high-temperature flue gas flow rate is accelerated, which can generate a greater negative pressure between the inner burner cap 1 and the outer burner cap 2 (similar to the effect of a nozzle induced primary air at the burner head). Therefore, more secondary air can be induced through the secondary air inlet of the burner distributor. At the same time, because the high-temperature flue gas outlet is narrowed, the slower-flowing flue gas below will flow back on the upper surface of the outer burner cap 2, and re-merge and mix with the secondary air, and continue to merge with the flame to continue to participate in combustion. This cycle (forming a vortex at position A) makes the primary air and secondary air in the gas more evenly mixed, and allows the unburned gas to continue to burn, making the combustion more complete. At the same time, the generation of the vortex allows the high-temperature flue gas to repeatedly wash the bottom of the pot 4, improving the heat convection exchange efficiency and achieving energy efficiency improvement. In addition, the presence of the vortex will lift the high-temperature smoke and flame, making the flame of the inner fire cover 1 more concentrated, which indirectly increases the heat exchange area with the bottom of the pot 4. At the same time, it will widen the gap between the flames of the inner fire cover 1 and the outer fire cover 2, avoiding the problem of flames interfering with each other and competing for air, resulting in high smoke levels.

[0023] The second pot-holding structure: the energy-concentrating plate pot-holding structure, is implemented in a similar way and on the same principle as the outer flame cap pot-holding structure, with the same effect. The flame and high-temperature flue gas from the outer flame cap 2 will flow out at an angle along the second flame outlet 21 and generate positive pressure. Due to the energy-concentrating plate pot-holding structure, the high-temperature flue gas flow rate is accelerated, which can generate a greater negative pressure between the energy-concentrating plate 3 and the outer flame cap 2, thus drawing in more secondary air. At the same time, because the high-temperature flue gas outlet is narrowed, the slower-flowing flue gas below will flow back on the upper surface of the energy-concentrating plate 3, and re-merge and mix with the secondary air, and continue to merge with the flame to continue participating in combustion. This cycle (forming a vortex) makes the primary and secondary air in the gas mixture more evenly mixed, and allows the unburned gas to continue to burn, making the combustion more complete. At the same time, the generation of the vortex allows the high-temperature flue gas to repeatedly wash the bottom of the pot 4, improving the heat convection exchange efficiency and achieving energy efficiency improvement. In addition, the presence of the vortex will lift the high-temperature smoke and flame, making the flame of the outer fire cover 2 more concentrated, which will indirectly increase the heat exchange area with the bottom of the pot 4.

[0024] In summary, the multi-layered combustion system provided by this utility model can create a multi-layered combustion effect, allowing the combustion gas mixture in both the inner and outer burner caps to mix more evenly with primary and secondary air. This improves the utilization rate of primary and secondary air, resulting in a significant reduction in flue gas volume. At this point, provided the flue gas meets national standards, the damper opening and secondary air inlet area can be appropriately reduced to decrease the excess coefficient of primary and secondary air, preventing excessive primary and secondary air from participating in combustion and thus carrying away heat, thereby improving energy efficiency. Furthermore, thanks to the multi-layered combustion structure, high-temperature flue gas forms multiple vortices between the outer burner cap 2, the energy-concentrating plate 3, and the bottom of the cookware 4. This allows the high-temperature flue gas to continuously circulate and repeatedly conduct heat convection heat exchange on the bottom of the cookware 4, thereby improving the heat exchange efficiency of the high-temperature flue gas and achieving energy efficiency improvement.

[0025] like Figure 2 , Figure 3 As shown, in one embodiment of this utility model, the cross-section of the top surface of the outer flame cover 2 is a downwardly concave arc shape; similarly, the cross-section of the top surface of the energy-concentrating plate 3 is a downwardly concave arc shape, so as to improve the pot-holding effect, facilitate the formation of vortices by high-temperature flue gas, improve heat exchange efficiency, and achieve energy efficiency improvement.

[0026] To further improve heat exchange efficiency and achieve energy efficiency improvement, such as Figure 1 , Figure 2 , Figure 3As shown, in one embodiment of this utility model, the top surface of the energy-concentrating disk 3 is provided with an energy-concentrating ring 31, the cross-section of which is inverted V-shaped. The height of the inner side of the energy-concentrating ring 31 gradually increases from the inside to the outside, and the height of the outer side of the energy-concentrating ring 31 gradually decreases from the inside to the outside. In this way, a new pot-holding structure is formed on the inner side of the energy-concentrating ring 31. Preferably, the cross-section of the inner side of the energy-concentrating ring 31 is a downwardly concave arc shape to improve the pot-holding effect, which is conducive to the formation of a vortex of high-temperature flue gas at position B, thereby improving heat exchange efficiency and achieving energy efficiency improvement. Further, an annular groove 32 is formed between the outer side of the energy-concentrating ring 31 and the top surface of the energy-concentrating disk 3, the cross-section of which is V-shaped. In this way, a new pot-holding structure is formed at the groove 32. When the high-temperature flue gas (fast flow rate) passes through the exhaust port, part of the flue gas flows back and forms a vortex at position C, and continues to mix with the high-temperature flue gas, so that the excess air continues to mix evenly and burn; at the same time, the vortex allows the high-temperature flue gas to circulate and wash the bottom of the pot 4, improving the heat exchange efficiency.

[0027] In one embodiment of this utility model, the energy-concentrating ring 31 and the energy-concentrating disk 3 can be separate structures or integrated structures.

[0028] In order to improve the pot holding effect, in one embodiment of this utility model, the height of the first flame outlet 11 corresponds to the top surface of the outer flame cover 2, and the height of the second flame outlet 21 corresponds to the top surface of the energy-concentrating plate 3.

[0029] like Figure 2 , Figure 3 As shown, in one embodiment of the present invention, the energy-concentrating disk 3 includes several transverse partitions 33, which divide the interior of the energy-concentrating disk 3 into several longitudinally arranged heat-insulating spaces to improve heat exchange efficiency.

[0030] like Figures 1-3 As shown, in one embodiment of this utility model, the top outer end of the energy-concentrating plate 3 is provided with several supports 34 to facilitate the support of the cookware 4.

[0031] This utility model also provides a stove, including the aforementioned multi-stage combustion system. Specifically, the stove also includes necessary structures such as a burner head, an ejector tube, and a nozzle, which are existing technologies and will not be described in detail here.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-stage boiler combustion system, characterized in that, It includes an inner flame cover (1), an outer flame cover (2), and an energy-concentrating plate (3); The inner fire cover (1) has a first fire outlet (11) on its outer side. The outer flame cap (2) is circular and located on the outer periphery of the inner flame cap (1); the outer side of the outer flame cap (2) is provided with a second flame outlet (21); the height of the top surface of the outer flame cap (2) gradually increases from the inside to the outside; The energy-concentrating disk (3) is circular and located on the outer periphery of the outer fire cover (2); the height of the top surface of the energy-concentrating disk (3) gradually increases from the inside to the outside.

2. The multi-stage combustion system according to claim 1, characterized in that, The cross-section of the top surface of the outer fire cover (2) is a downward concave arc shape.

3. The multi-stage combustion system according to claim 2, characterized in that, The cross-section of the top surface of the energy-concentrating disk (3) is a downward-concave arc shape.

4. The multi-stage combustion system according to any one of claims 1 to 3, characterized in that, The top surface of the energy-concentrating disk (3) is provided with an energy-concentrating ring (31), and the cross-section of the energy-concentrating ring (31) is inverted V-shaped; the height of the inner side of the energy-concentrating ring (31) gradually increases from the inside to the outside, and the height of the outer side of the energy-concentrating ring (31) gradually decreases from the inside to the outside.

5. The multi-stage combustion system according to claim 4, characterized in that, The cross-section of the inner side of the energy-concentrating ring (31) is a downward-concave arc shape.

6. The multi-stage combustion system according to claim 4, characterized in that, An annular groove (32) is formed between the outer side of the energy-concentrating ring (31) and the top surface of the energy-concentrating disk (3), and the cross-section of the groove (32) is V-shaped.

7. The multi-stage combustion system according to any one of claims 1 to 3, characterized in that, The height of the first flame outlet (11) corresponds to the top surface of the outer flame cover (2); the height of the second flame outlet (21) corresponds to the top surface of the energy-concentrating disk (3).

8. The multi-stage combustion system according to any one of claims 1 to 3, characterized in that, The energy-concentrating disk (3) includes several horizontal partitions (33), which divide the interior of the energy-concentrating disk (3) into several longitudinally arranged heat-insulating spaces.

9. The multi-stage combustion system according to any one of claims 1 to 3, characterized in that, The energy-concentrating disk (3) has several supports (34) at its top outer end.

10. A stove, characterized in that, Includes a multi-stage boiler combustion system according to any one of claims 1 to 9.

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