Energy-gathering pot rack and gas cooker

Abstract

The utility model discloses an energy-gathering pot rack and a gas cooker, and belongs to the field of kitchen appliances. The energy-gathering pot rack comprises an energy-gathering ring, the energy-gathering ring is of an annular hollow structure, the energy-gathering ring is arranged around the burner, the inner circumferential face of the energy-gathering ring is a vertical plane or an inclined plane, and the outer circumferential face of the energy-gathering ring is an arc face. At least two secondary air flow channels are arranged on the energy gathering ring in the circumferential direction at intervals, secondary air inlets of the secondary air flow channels are formed in the outer circumferential face, and secondary air outlets of the secondary air flow channels are formed in the inner circumferential face. The hollow energy gathering ring is arranged on the outer ring of the combustor for heat insulation and energy gathering, meanwhile, the inner circumferential face and the outer circumferential face of the energy gathering ring are used for guiding and recycling high-temperature flue gas, and the heat efficiency is improved; and at least two secondary air flow channels are formed in the circumferential direction of the energy gathering ring to supplement secondary air for flame of the burner fire hole, so that the secondary air is fully preheated and uniformly supplemented, the temperature of the burning flame is increased, the heat exchange effect with a cooking pot is enhanced, and the burning heat efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an energy-gathering pot rack and a gas cooker. Background Art

[0002] Gas stoves are a staple of everyday household cooking. With the continuous development of society, high combustion thermal efficiency has become a key development trend for gas stoves. To achieve even higher thermal efficiency, some manufacturers have developed gas stoves with energy-concentrating pan supports. These pan supports come in single-layer, double-layer, and multi-layer configurations. These pan supports separate the secondary air required for combustion from the high-temperature flue gases generated by combustion, trapping them within the pan. This enhances heat exchange between the flue gases and the pan bottom, reduces radiative and convective heat losses, and effectively concentrates heat energy, improving combustion efficiency.

[0003] However, the existing energy-gathering disk pot rack has the following main problems: the energy-gathering disk pot rack is arranged around the outer ring fire cover of the burner. Although it can reduce heat loss, secondary air is mainly replenished into the fire cover area of ​​the burner through the gap between the bottom of the energy-gathering disk and the panel. Therefore, the energy-gathering disk limits the replenishment of secondary air to the flame to a certain extent, which greatly limits the improvement of the thermal efficiency of the burner.

[0004] Therefore, it is urgent to design a kind of energy-gathering pot rack and gas cooker to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-gathering pot rack, which can increase the replenishment amount of secondary air and preheat the secondary air at the same time, thereby improving thermal efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Energy-gathering pot rack, including:

[0008] The energy gathering ring is an annular hollow structure, which is arranged around the burner. The inner circumferential surface of the energy gathering ring is a vertical plane or an inclined plane, and the outer circumferential surface of the energy gathering ring is a circular arc surface; the energy gathering ring is provided with at least two secondary air flow channels spaced apart along the circumferential direction, the secondary air inlet of the secondary air flow channel is opened on the outer circumferential surface, and the secondary air outlet of the secondary air flow channel is opened on the inner circumferential surface.

[0009] As a preferred technical solution of the above-mentioned energy-gathering pot stand, the extension direction of the secondary air flow channel is arranged to form an angle with the radial direction of the energy-gathering ring.

[0010] As a preferred technical solution of the above-mentioned energy-gathering pot rack, the angle between the extending direction of each of the secondary air flow channels and the radial direction of the energy-gathering ring is the same.

[0011] As a preferred technical solution of the above-mentioned energy-gathering pot rack, a partition component is provided inside the secondary air flow channel, the length of the partition component is smaller than the length of the secondary air flow channel, and the partition component divides the secondary air outlet into at least two sub-outlets.

[0012] As a preferred technical solution of the above-mentioned energy-gathering cooker, among the at least two sub-outlets, the diameter of the sub-outlet at a shorter distance from the secondary air inlet is smaller than the diameter of the sub-outlet at a longer distance from the secondary air inlet.

[0013] As a preferred technical solution of the above-mentioned energy-gathering cooker, at least two of the sub-outlets are distributed along the circumferential direction or along the height direction.

[0014] As a preferred technical solution of the above-mentioned energy-gathering pot rack, the extension path of the secondary air flow channel is a straight extension or a curved extension.

[0015] As a preferred technical solution of the above-mentioned energy-gathering pot rack, the upper and lower ends of the inner circumferential surface are respectively connected to the outer circumferential surface in a smooth transition.

[0016] As a preferred technical solution of the above-mentioned energy-gathering pot rack, the inclined plane is inclined outward from top to bottom, and the angle between the inclined plane and the vertical plane is not greater than 15°.

[0017] The purpose of the utility model is to provide a gas stove with high combustion thermal efficiency.

[0018] To achieve this purpose, the present invention also adopts the following technical solutions:

[0019] A gas cooker comprises the above-mentioned energy-gathering pot rack.

[0020] The energy-gathering pot stand disclosed in the utility model includes an energy-gathering ring, which is a hollow annular structure and is arranged around a burner. The inner circumferential surface of the energy-gathering ring is a vertical plane or an inclined plane, and the outer circumferential surface of the energy-gathering ring is a circular arc surface. The energy-gathering ring is provided with at least two secondary air flow channels spaced apart along the circumference, the secondary air inlet of the secondary air flow channel is provided on the outer circumferential surface, and the secondary air outlet of the secondary air flow channel is provided on the inner circumferential surface. By arranging the hollow energy-gathering ring around the outer circumference of the burner to achieve heat insulation and energy concentration, the inner and outer circumferential surfaces of the energy-gathering ring are used to guide and recycle high-temperature flue gas, thereby improving thermal efficiency. At least two secondary air flow channels are provided around the energy-gathering ring to replenish secondary air for the burner flame, so that the secondary air is fully preheated and evenly replenished, thereby increasing the combustion flame temperature, enhancing the heat exchange effect with the cooking pot, and thus improving the combustion thermal efficiency.

[0021] The gas cooker disclosed in the utility model comprises the above-mentioned energy-gathering pot rack and has high combustion heat efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the energy-gathering pot stand provided by a specific embodiment of the utility model;

[0023] Figure 2 This is a cross-sectional view of the structure of the energy-gathering pot rack and the burner after assembly provided by a specific embodiment of the utility model;

[0024] Figure 3 This is a top view of the energy-gathering pot stand provided by a specific embodiment of the utility model;

[0025] Figure 4 This is a front view of the assembled energy-gathering pot stand and burner provided by a specific embodiment of the utility model;

[0026] Figure 5 yes Figure 4 Middle AA section view.

[0027] In the picture:

[0028] 1. Energy-gathering ring; 11. Inner circumference; 12. Outer circumference; 13. Secondary air flow channel; 131. Secondary air inlet; 132. Secondary air outlet; 1321. Sub-outlet; 14. Separator; 2. Support member;

[0029] 100. Burner. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0036] This embodiment provides a gas cooker, which includes a burner 100 and an energy-gathering pot rack. The energy-gathering pot rack is arranged around the outer circumference of the burner 100 and can support a pot above the burner 100 .

[0037] like Figure 1As shown, the energy-gathering pot stand comprises an energy-gathering ring 1 and a support member 2. The energy-gathering ring 1 is a hollow, annular structure that surrounds the burner 100. The support member 2 is located on the upper surface of the energy-gathering ring 1 and supports the pot. The highest point of the support member 2 is higher than the highest point of the upper surface of the energy-gathering ring 1. When the pot is placed on the support member 2, an air passage and an exhaust channel are formed between the bottom of the pot and the upper surface of the energy-gathering ring 1. The air passage allows high-temperature flue gas to flow, effectively exchanging heat with the bottom of the pot. The exhaust channel allows the high-temperature flue gas to be discharged, ensuring a negative pressure inside the energy-gathering ring 1 and between the energy-gathering ring 1 and the burner 100, thereby ensuring a continuous supply of secondary air to the flame hole of the burner 100. Multiple support members 2 are provided to collectively support the pot. The multiple support members 2 are evenly spaced along the circumference of the energy-gathering ring 1 to ensure stable placement of the pot. In this embodiment, there are four support members 2 to ensure stable support for the pot. In other implementations, the number of the support members 2 may also be three, five or more, which is not specifically limited here.

[0038] like Figures 2 to 5 As shown, the inner circumferential surface 11 of the energy gathering ring 1 is a vertical plane or an inclined plane, and the outer circumferential surface 12 of the energy gathering ring 1 is an arc surface; the energy gathering ring 1 is provided with at least two secondary air flow channels 13 spaced apart along the circumferential direction, and the secondary air inlet 131 of the secondary air flow channel 13 is opened on the outer circumferential surface 12, and the secondary air outlet 132 of the secondary air flow channel 13 is opened on the inner circumferential surface 11.

[0039] As the high-temperature flue gas passes through the inner circumferential surface 11 of the energy-gathering ring 1, the changes and diversions in the fluid cross-section cause the high-temperature flue gas to continue to diffuse outward along the upper end of the energy-gathering ring 1. Since the outer circumferential surface 12 of the energy-gathering ring 1 is an outwardly convex arc surface, the high-temperature flue gas expands and increases in pressure, improving heat exchange with the bottom of the cookware. Furthermore, some of the high-temperature flue gas flows downward along the outer circumferential surface 12, continuing around the lower end of the outer circumferential surface 12 to be replenished into the inner ring space, thereby mixing with the secondary air, recycling the high-temperature flue gas and improving thermal efficiency. Simultaneously, outside air is evenly replenished along at least two circumferential secondary air flow channels 13 to the burner 100 fire hole to participate in combustion, increasing the combustion flame temperature. Since the temperature of the energy-gathering ring 1 is relatively high during use of the gas cooker, it can preheat the secondary air in the secondary air flow channels 13, increasing the temperature of the secondary air and enhancing the heat exchange effect with the cooking pot, thereby improving combustion thermal efficiency.

[0040] When the inner circumferential surface 11 of the energy-gathering ring 1 is an inclined plane, the plane slopes outward from top to bottom. That is, the diameter of the upper end of the inner ring of the energy-gathering ring 1 is smaller than the diameter of the lower end, and the angle between the inclined plane and the vertical plane is no greater than 15 degrees. A vertical plane or a slightly inclined plane effectively straightens the high-temperature flue gas. As the high-temperature flue gas generated by the flame passes through the inner circumferential surface 11 of the energy-gathering ring 1, the changes in the flow cross-section and the diversion of the flow cause the high-temperature flue gas to continue to diffuse outward along the upper end of the energy-gathering ring 1.

[0041] In this embodiment, if Figure 2 As shown, the upper and lower ends of the inner circumference 11 of the energy-gathering ring 1 are smoothly connected to the outer circumference 12. This structural arrangement has a diversion effect on the high-temperature flue gas, allowing some of the high-temperature flue gas to bypass the lower end arc surface of the outer circumference 12 and flow back into the inner ring space, thereby realizing the recycling of some of the high-temperature flue gas.

[0042] like Figure 5 As shown, the extension direction of the secondary air flow channel 13 is arranged at an angle to the radial direction of the energy-gathering ring 1, that is, the extension direction of the secondary air flow channel 13 is arranged at an angle relative to the radial direction of the energy-gathering ring 1. This arrangement can extend the heat exchange path between the secondary air flow channel 13 and the energy-gathering ring 1, thereby enhancing the heat exchange effect, increasing the temperature of the secondary air, improving the preheating effect of the secondary air, and effectively improving the thermal energy utilization rate. At the same time, because each secondary air flow channel 13 extends at an angle, the secondary air is more likely to form a swirl effect after flowing out of the secondary air outlet 132. This facilitates the full mixing of the secondary air and the high-temperature flue gas and effective preheating, promotes more complete combustion, increases the combustion flame temperature, enhances the heat exchange effect with the cooking pot, and thus improves the overall combustion thermal efficiency.

[0043] In this embodiment, the extension direction of each secondary air flow channel 13 forms the same angle with the radial direction of the energy-gathering ring 1. This structural arrangement improves the uniformity of secondary air replenishment. At least two secondary air flow channels 13 are evenly spaced along the circumference of the energy-gathering ring 1, further improving the uniformity of secondary air replenishment.

[0044] Continue to refer Figure 5As shown, a partition assembly is provided inside the secondary air flow channel 13, and the length of the partition assembly is less than the length of the secondary air flow channel 13. The partition assembly divides the secondary air outlet 132 into at least two sub-outlets 1321. That is, the extension portion of the secondary air flow channel 13 within the energy gathering ring 1 has a bifurcated flow channel structure, and the number of bifurcated flow channel structures is the same as the number of sub-outlets 1321 and corresponds one to one. Under this structure, one secondary air inlet 131 corresponds to at least two sub-outlets 1321. With such an arrangement, more sub-outlets 1321 can be distributed on the inner circumference 11 of the energy gathering ring 1, making the secondary air replenishment more uniform, which is beneficial for replenishing air to the fire holes around the fire cover, and is also beneficial for the full mixing of the secondary air and the high-temperature flue gas and effective preheating, which helps to make the combustion more complete and increase the combustion flame temperature, thereby improving the thermal energy utilization rate and further improving the overall combustion thermal efficiency.

[0045] The partition assembly includes at least one partition. In the present embodiment, there is one partition, and the partition is a plate-like structure. A plate-like partition divides the secondary air outlet 132 into two sub-outlets 1321. Of course, two or more partitions 14 can be provided inside a secondary air flow channel 13 to design the secondary air flow channel 13 into a three-branched flow channel structure, a four-branched flow channel structure, or other more branched flow channel structures. Regarding the number of partitions 14 and the number of sub-outlets 1321, if the number of partitions 14 is n (n is a positive integer), then the number of sub-outlets 1321 is n+1.

[0046] Based on the above structure, the same secondary air flow channel 13 can be designed with sub-outlets 1321 of different sizes. Specifically, of the at least two sub-outlets 1321, the sub-outlet 1321 located closer to the secondary air inlet 131 has a smaller diameter than the sub-outlet 1321 located farther from the secondary air inlet 131. In this embodiment, each secondary air flow channel 13 is provided with a partition 14, resulting in two sub-outlets 1321 for each secondary air flow channel 13. By designing the sub-outlets 1321 closer to the secondary air inlet 131 to be smaller and the sub-outlets 1321 farther from the secondary air inlet 131 to be larger, the flow rates at each sub-outlet 1321 can be further balanced, achieving optimal combustion conditions and improving combustion thermal efficiency. In a specific design, the diameter of each sub-outlet 1321 can be adjusted by adjusting the position of the partition 14. It should be noted that the "diameter" here refers to the size of the opening, which can also be understood as the cross-sectional area of ​​the opening.

[0047] Furthermore, at least two sub-outlets 1321 are distributed along the circumferential direction or along the height direction. Generally, the sub-outlets 1321 corresponding to the same secondary air flow channel 13 are designed to be at the same height, that is, they are spaced apart along the circumferential direction. Of course, the sub-outlets 1321 corresponding to the same secondary air flow channel 13 can also be designed to be at different heights, that is, they are spaced apart along the height direction. With such an arrangement, secondary air can be supplemented to the fire holes at different height positions of the fire cover, making the supplementation more effective and the combustion more complete. In a specific design, the above structure can be achieved by adjusting the position of the partition 14.

[0048] In this embodiment, the extension path of the secondary air flow channel 13 is a straight extension or a curved extension. Figure 5 As shown, the secondary air flow channel 13 is a straight-through extended flow channel, that is, the inner wall surface of the secondary air flow channel 13 is a straight line. The secondary air flow channel 13 can also be designed as a curved flow channel structure, that is, the inner wall surface of the secondary air flow channel 13 is a curve, to further extend its heat exchange path, enhance the heat exchange effect, reduce heat energy loss, and effectively improve heat energy utilization.

[0049] In this embodiment, the shapes of the secondary air inlet 131 and the sub-outlet 1321 can be selected in a variety of ways, such as being designed as a rectangular opening, an oblong hole opening, or an elliptical opening.

[0050] The working principle of the energy-gathering pot rack provided in this embodiment is briefly described below:

[0051] When the gas cooker is working, the high-temperature flue gas generated by the flame combustion continues to diffuse outward along the upper end of the energy focusing ring 1 due to the change and turning of the fluid cross-section when passing through the inner circumferential surface 11 of the energy focusing ring 1. Since the outer circumferential surface 12 of the energy focusing ring 1 is a circular arc surface protruding outward, the high-temperature flue gas expands and increases the pressure, thereby improving the heat exchange with the bottom of the cookware, and causing part of the high-temperature flue gas to flow downward along the outer circumferential surface 12 and continue to bypass the lower end arc surface of the outer circumferential surface 12 to replenish the inner circle space, so that part of the high-temperature flue gas is mixed with the secondary air, preheating the secondary air while realizing the recycling of the high-temperature flue gas and improving thermal efficiency. At the same time, the outside air enters the energy gathering circle 1 along the secondary air inlet 131 of at least two circumferential secondary air flow channels 13, and is guided by the secondary air flow channel 13 and then supplemented to the fire hole position of the fire cover through the secondary air outlet 132 to participate in the combustion. Due to the inclined extension and bifurcated diversion effect of the secondary air flow channel 13, the secondary air can fully exchange heat with the high-temperature energy gathering circle 1, thereby achieving sufficient preheating of the secondary air, increasing the combustion flame temperature, and enhancing the heat exchange effect with the cooking pots. Moreover, each secondary air flow channel 13 supplements the secondary air to the fire hole of the fire cover through at least two sub-outlets 1321, so that the secondary air supplement is more uniform, which helps to make the combustion more complete and sufficient, achieve the optimal combustion condition, and thus improve the combustion thermal efficiency.

[0052] Since the gas cooker provided in this embodiment includes the aforementioned energy-gathering pot rack, the technical advantages and effects achievable by the gas cooker also include the technical advantages and effects achievable by the aforementioned energy-gathering pot rack, which will not be described in detail here.

[0053] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. Energy-gathering pot rack, characterized in that: include: The energy-gathering ring (1) is an annular hollow structure, and is arranged around the burner (100). The inner circumferential surface (11) of the energy-gathering ring (1) is a vertical plane or an inclined plane, and the outer circumferential surface (12) of the energy-gathering ring (1) is an arc surface. The energy-gathering ring (1) is provided with at least two secondary air flow channels (13) spaced apart along the circumferential direction, and the secondary air inlet (131) of the secondary air flow channel (13) is opened on the outer circumferential surface (12), and the secondary air outlet (132) of the secondary air flow channel (13) is opened on the inner circumferential surface (11).

2. The energy-gathering pot support according to claim 1, characterized in that: The extension direction of the secondary air flow channel (13) is arranged at an angle to the radial direction of the energy-gathering ring (1).

3. The energy-gathering pot support according to claim 2, characterized in that: The included angle between the extension direction of each secondary air flow channel (13) and the radial direction of the energy gathering ring (1) is the same.

4. The energy-gathering pot support according to claim 1, characterized in that: A partition component is provided inside the secondary air flow channel (13), the length of the partition component being smaller than the length of the secondary air flow channel (13), and the partition component divides the secondary air outlet (132) into at least two sub-outlets (1321).

5. The energy-gathering pot support according to claim 4, characterized in that: Among the at least two sub-outlets (1321), the diameter of the sub-outlet (1321) at a shorter distance from the secondary air inlet (131) is smaller than the diameter of the sub-outlet (1321) at a longer distance from the secondary air inlet (131).

6. The energy-gathering pot support according to claim 4, characterized in that: At least two of the sub-outlets (1321) are distributed along the circumferential direction or along the height direction.

7. The energy-gathering pot support according to any one of claims 1 to 6, characterized in that: The extension path of the secondary air flow channel (13) is a straight extension or a curved extension.

8. The energy-gathering pot support according to any one of claims 1 to 6, characterized in that: The upper and lower ends of the inner peripheral surface (11) are respectively connected to the outer peripheral surface (12) in a smooth transition.

9. The energy-gathering pot support according to any one of claims 1 to 6, characterized in that: The inclined plane is inclined outward from top to bottom, and the angle between the inclined plane and the vertical plane is no greater than 15°.

10. A gas cooker, characterized in that: The invention comprises the energy-gathering pot stand according to any one of claims 1 to 9.

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