A kind of energy concentrating pot rack and gas stove

Abstract

The utility model discloses a kind of energy-gathering pot racks, including the pot rack shell arranged around combustor, pot rack shell includes the upper layer tray of outer edge higher than inner edge and suitable for the energy-gathering of pot utensil erected on pot rack shell, and the lower layer tray connected with upper layer tray and with it enclose annular cavity, upper layer tray has vertical extension and is suitable for the heat between upper layer tray and pot utensil is guided to the guiding portion of pot utensil bottom in the part close to its outer edge.The utility model further discloses a gas stove with the energy-gathering pot rack.The beneficial effects of the utility model are that heat can be avoided to escape rapidly outward, and heat efficiency is improved.

Description

Technical Field

[0001] This utility model relates to an energy-concentrating pot rack and a gas stove, and belongs to the optimized design of energy-concentrating pot rack to improve thermal efficiency. Background Technology

[0002] A heat-concentrating pot rack, designed to improve the thermal efficiency of a gas stove, typically comprises a pot rack shell surrounding the burner. This shell consists of an upper plate with its outer edge higher than its inner edge and a lower plate connected to it, together forming an annular cavity. In existing technology, the cavity utilizes the low thermal conductivity of air to reduce heat loss from the upper plate, thereby enhancing its heat-concentrating effect on the cookware. However, while the upper plate can improve combustion efficiency through heat concentration, the heat between the upper plate and the bottom of the pot tends to escape outwards, failing to adequately guide it to the core area at the bottom of the cookware, resulting in insufficient heat utilization efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an energy-concentrating pot rack and gas stove that can prevent heat from escaping quickly and improve thermal efficiency.

[0004] This utility model is achieved through the following technical solution.

[0005] An energy-concentrating pot rack includes a pot rack shell arranged around a burner. The pot rack shell includes an upper plate with an outer edge higher than the inner edge and adapted to concentrate energy for a pot mounted on the pot rack shell, and a lower plate connected to the upper plate and forming an annular cavity with it. The upper plate has a guide portion extending vertically near its outer edge and adapted to guide the hot air between the upper plate and the pot to the bottom of the pot.

[0006] As a further improvement of this utility model, the upper plate transitions in an arc shape from its inner edge to the bottom of the guide section.

[0007] As a further improvement of this utility model, the height of the upper plate gradually decreases from its inner edge to the bottom of the guide section and then gradually increases.

[0008] As a further improvement of this utility model, the height of the inner and outer edges of the upper plate relative to the burner is configured such that the portion of the upper plate near the inner edge forms a low-temperature zone corresponding to the root of the flame, and the portion near the outer edge forms a high-temperature zone corresponding to the outer flame of the flame.

[0009] As a further improvement of this utility model, the outer edge of the lower plate is connected to the outer edge of the upper plate, and the lower plate has a thickened portion formed by extending downward from its outer edge to a certain height.

[0010] As a further improvement of this utility model, the length of the thickened part is not less than 3mm.

[0011] As a further improvement of this utility model, the upper plate is provided with multiple supports distributed circumferentially for supporting the pot, and the positions where the supports connect to the upper plate correspond to its high-temperature zone.

[0012] As a further improvement of this utility model, the bottom of the pot frame shell is provided with multiple circumferentially distributed support feet, and there is an annular gap between the inner edge of the pot frame shell and the outer periphery of the burner, so that outside air flows in from the space below the lower plate, part of the air is supplied to the ejector tube at the bottom of the burner, and the other part of the air is supplied to the combustion area at the top of the burner through the annular gap.

[0013] As a further improvement of this utility model, the lower plate is formed with a guide portion including its inner edge. The extension posture of the guide portion from the outside to the inside is suitable for guiding the air below the lower plate, so that it passes through the annular gap and flows to the root of the flame formed by the combustion of the burner.

[0014] A gas stove, including a burner and a pot holder.

[0015] The beneficial effects of this utility model are: On the one hand, the guide section acts like a deflector, effectively guiding the hot airflow that is spreading outward near the outer edge of the upper plate upward, making it flow more concentrated towards the bottom center area of ​​the cookware 4, ensuring that the hot airflow can directly and efficiently exchange heat with the bottom of the cookware; on the other hand, the vertical wall structure of the guide section itself increases the complexity of the hot airflow path, hindering the straight-line dissipation of the hot airflow, making the hot airflow need to bypass or flow along the guide section, which is equivalent to extending the residence time of the hot airflow in the core heating area at the bottom of the cookware, thereby significantly improving the energy concentration effect and thermal efficiency. Attached Figure Description

[0016] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein: Figure 1 This is a schematic diagram of the structure of the energy-concentrating boiler rack; Figure 2 A cross-sectional schematic diagram of the energy-concentrating boiler frame and burner; Figure 3 This is a partial cross-sectional view of the energy-concentrating boiler frame. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0019] Implementation method 1:

[0020] This embodiment illustrates a heat-concentrating boiler frame that can improve thermal efficiency, see reference. Figures 1-3 It includes a pot frame shell 1 arranged around the burner 2. The pot frame shell 1 consists of an upper plate 11 with its outer edge higher than its inner edge and a lower plate 12 connected to it. The upper plate 11 is used to concentrate energy for the pot placed on it, so that the upper plate 11 is equivalent to an energy-concentrating plate. The upper plate 11 and the lower plate 12 together form an annular cavity r. As the main energy-concentrating component, the upper plate 11 has the same function as the energy-concentrating plate, while the air filled in the annular cavity r can effectively prevent heat from being transferred downwards, acting like a heat insulation layer to protect the temperature of the upper plate 11 from being easily lost, thereby significantly enhancing the energy-concentrating effect of the upper plate 11 and allowing more heat to be absorbed by the pot 4. A guide portion 111 is provided on the upper plate 11 near its outer edge. The guide section 111 has a vertically extending structure, which plays a dual role: on the one hand, it can act like a baffle to effectively guide the hot airflow that is spreading outward near the outer edge of the upper plate 11 upward, so that it flows more concentratedly to the bottom center area of ​​the pot 4, ensuring that the hot airflow can directly and efficiently exchange heat with the bottom 41 of the pot; on the other hand, the vertical wall structure of the guide section 111 itself increases the complexity of the hot airflow path, hindering the straight-line dissipation of the hot airflow, so that the hot airflow needs to bypass or flow along the guide section 111, which is equivalent to prolonging the residence time of the hot airflow in the core heating area of ​​the bottom 41 of the pot, thereby significantly improving the energy concentration effect and thermal efficiency.

[0021] In this embodiment, to further optimize the flow characteristics of the hot airflow to the surface of the upper disk 11, the structure of the upper disk 11 is designed such that the entire area extending from its innermost edge to the bottom of the guide section 11 has an arc-shaped transition. Specifically, this part is no longer a plane or folded surface with obvious turning angles, but forms a continuous, smooth arc-shaped disk structure. This arc-shaped transition arc-shaped disk design can significantly improve the flow state of the hot airflow on its surface: when the hot airflow rises from the burner and contacts the inner edge area of ​​the upper disk 11, the smooth arc surface eliminates the turbulence or eddies that may be caused by sharp angles, allowing the hot airflow to diffuse more smoothly and stably along the arc surface towards the outer edge. This smooth flow reduces the energy loss of the airflow at this point, ensuring that more hot airflow can be efficiently guided to the critical guide section 11 area, providing more ideal airflow input conditions for the guide section 11 to perform its guiding function, thereby synergistically improving the overall efficiency of hot airflow guidance.

[0022] In this embodiment, based on the arc-shaped disk structure, in order to more actively guide and converge the hot airflow, the height variation of the upper disk 11 is further set as follows: starting from its inner edge, towards the bottom of the guide section 11, the height gradually decreases and then gradually increases. This unique height variation makes the overall shape of the upper disk 11 no longer a simple sloping or arc-shaped surface, but a downwardly concave disk structure, similar to a shallow saucer. This downwardly concave disk structure creates a natural, relatively low-lying area, which has a significant converging effect on the rising hot airflow: when the hot airflow flows towards the central area of ​​the disk (i.e., the part where the height decreases), its flow path is guided by the concave structure and naturally converges towards the center; subsequently, when flowing towards the bottom of the guide section 11 (i.e., the part where the height begins to increase), this converged airflow is guided upward by the gradually rising disk surface and accelerates towards the guide section 11. This "convergence-lifting" flow process, combined with the smooth, curved surface structure at the bottom, significantly enhances the concentration and kinetic energy of the hot airflow in the core area of ​​the cookware bottom. This results in a more even and powerful distribution of heat in the core heating area, ultimately effectively improving the intensity and efficiency of heat transfer to the cookware.

[0023] In this embodiment, based on considerations of temperature distribution, the inner and outer edges of the upper plate 11 are positioned relative to the height of the burner 2 in a specific configuration. Specifically, the inner edge of the upper plate 11 is positioned lower, with the portion near the inner edge corresponding to the height of the flame root and forming a low-temperature zone 11a, while the outer edge is positioned higher, with the portion near the outer edge corresponding to the height of the outer flame and forming a high-temperature zone 11b. Through this arrangement of relative height to the burner 2, the upper plate 11 concentrates heat in the high-temperature zone 11b to enhance the energy-concentrating effect.

[0024] In this embodiment, the outer edge of the lower plate 12 and the outer edge of the upper plate 11 are directly connected. They can be an integral structure or connected by wire welding. The lower plate 12 has a thickened portion 121 formed by extending downward from its outer edge to a certain height. The thickened portion 121 is for the outer edge of the upper plate 11 and is formed by metal stamping or casting. The thickened portion 121 ensures that the annular cavity r has a suitable thickness at the corresponding outer edge of the upper plate 11. The thickened portion 121 not only enhances the structural strength of the pot frame shell 1 at the outer edge, but also improves the heat insulation performance near the outer edge of the upper plate 11 by increasing the thickness of the heat insulation layer, thereby maintaining the stable temperature of the high-temperature zone 11b and improving the energy concentration effect.

[0025] In this embodiment, more specifically, the length of the thickened portion 121 is not less than 3 mm.

[0026] In this embodiment, based on considerations regarding the arrangement of the supports 31, multiple supports 31 distributed circumferentially are provided on the upper plate 11 for supporting the cookware. These supports 31 are connected to the upper plate 11 by welding or riveting, specifically corresponding to its high-temperature zone 11b. By connecting the supports 31 to the high-temperature zone 11b, when the heat from the cookware is transferred through the supports 31, the heat is directly introduced into the high-temperature zone 11b of the upper plate 11, rather than the low-temperature zone 11a or other parts. This utilizes the heat absorption capacity of the high-temperature zone 11b, preventing heat loss to the insulation layer or other parts of the shell during the transfer process, thereby improving the overall thermal efficiency. At the same time, the arrangement of the supports 31 enhances the stability of the cookware.

[0027] In this embodiment, considering air supply, the bottom of the pot frame shell 1 is provided with multiple circumferentially distributed support feet 32. These support feet 32 ​​are fixed by welding or integrally formed to the bottom of the lower plate 12, raising the pot frame shell 1 to a certain height. There is an annular gap between the inner edge of the pot frame shell 1 and the outer periphery of the burner 2. The height of the support feet 32 ​​is designed to allow outside air to flow in from the space below the lower plate 12. Part of the air is guided to the ejector tube at the bottom of the burner 2, and the other part of the air is supplied upward to the combustion area at the top of the burner 2 through the annular gap. This dual air supply structure optimizes the combustion process, ensures sufficient oxygen supply, improves combustion efficiency, and at the same time, the support feet 32 ​​stabilize the position of the shell and prevent heat from accumulating at the bottom.

[0028] In this embodiment, the lower plate 12 has a guide section 122 including its inner edge. The guide section 122 extends from the outside to the inside, which is suitable for guiding the air below the lower plate 12. More specifically, the guide section 122 is a slope that slopes upward from the outside to the inside. The arrangement of the guide section 122 allows air to pass through the annular gap and flow to the root of the flame formed by combustion in the burner 2. The guided airflow flows directly to the root of the flame at the top of the burner 2 (i.e., the contact area between the flame and the burner nozzle). The flame root is the area with the most concentrated combustion reaction and has an extremely high oxygen demand. The guide section 122 ensures that external air is supplied to this area efficiently and in a concentrated manner, significantly improving the mixing efficiency of fuel gas and air, and making combustion more complete.

[0029] Implementation Case 2: In this embodiment, a gas stove is provided, which includes a burner 2 and a pot rack, as shown in Embodiment 1.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of energy-concentrating pot rack, characterized in that, The pot frame housing includes a pot frame housing arranged around the burner (2), the pot frame housing including an upper plate (11) with an outer edge higher than the inner edge and adapted to concentrate energy for a pot mounted on the pot frame housing, and a lower plate (12) connected to the upper plate (11) and enclosing it to form an annular cavity (r), the upper plate (11) having a guide portion (111) extending vertically near its outer edge and adapted to guide hot air between the upper plate (11) and the pot to the bottom of the pot.

2. The energy-concentrating pot frame according to claim 1, characterized in that, The upper plate (11) transitions in an arc shape from its inner edge to the bottom of the guide portion (111).

3. The energy-concentrating pot frame according to claim 2, characterized in that, The height of the upper plate (11) gradually decreases from its inner edge to the bottom of the guide portion (111) and then gradually increases.

4. The energy-concentrating pot frame according to claim 1, characterized in that, The inner and outer edges of the upper plate (11) are configured relative to the height of the burner (2) such that the portion of the upper plate (11) near the inner edge forms a low-temperature zone (11a) corresponding to the root of the flame, and the portion near the outer edge forms a high-temperature zone (11b) corresponding to the outer flame of the flame.

5. The energy-concentrating pot frame according to claim 4, characterized in that, The outer edge of the lower disk (12) is connected to the outer edge of the upper disk (11), and the lower disk (12) has a thickened portion (121) formed by extending downward from its outer edge to a certain height.

6. The energy-concentrating pot frame according to claim 5, characterized in that, The length of the thickened portion (121) is not less than 3 mm.

7. The energy-concentrating pot frame according to claim 4, characterized in that, The upper plate (11) is provided with a plurality of circumferentially distributed supports (31) for supporting the pot, and the position of the supports (31) connected to the upper plate (11) corresponds to its high temperature zone (11b).

8. The energy-concentrating pot frame according to claim 1, characterized in that, The bottom of the pot frame housing is provided with multiple circumferentially distributed support feet (32), and there is an annular gap between the inner edge of the pot frame housing and the outer periphery of the burner (2), so that outside air flows in from the space below the lower plate (12), part of the air is provided to the ejector tube at the bottom of the burner (2), and the other part of the air is provided to the combustion area at the top of the burner (2) through the annular gap.

9. The energy-concentrating pot frame according to claim 8, characterized in that, The lower plate (12) is formed with a guide section (122) including its inner edge. The guide section (122) extends from the outside to the inside, which is suitable for guiding the air below the lower plate (12) through the annular gap and flowing to the root of the flame formed by the combustion of the burner (2).

10. A gas stove, characterized in that, Includes a burner (2) and a condensing pot frame as described in any one of claims 1-9.

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