Hob and gas stove

Abstract

The utility model relates to the technical field of cooking utensils, and more particularly to a pot rack and gas stove. The pot rack comprises a ring-shaped main body and a support; the support is connected with the ring-shaped main body, and the support is used for placing a pot; the ring-shaped main body is enclosed into an energy gathering area, and the ring-shaped main body is provided with a reflux part; wherein the reflux part is used for guiding flue gas at the top of the ring-shaped main body to the energy gathering area. The pot rack is applied to the gas stove, has a simple structure, is easy to manufacture and install, can guide the reflux of high-temperature flue gas, makes the flue gas more easily gather at the bottom of the pot, thereby improving the cooking efficiency, reducing heat loss, prolonging the residence time of high-temperature flue gas generated during the operation of the burner, reducing energy waste, and improving the combustion energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, specifically to a pot rack and a gas stove. Background Technology

[0002] In cooking scenarios, the pot rack on a gas stove primarily serves the basic function of supporting cookware. However, when a gas stove is operating, the high-temperature flue gas generated by the burner rises rapidly and diffuses into the surrounding environment, resulting in a significant loss of heat. This heat cannot be fully absorbed and utilized by the cookware, leading to substantial energy waste and reduced cooking efficiency. Although some existing pot racks have undergone certain improvements, they still have significant shortcomings in guiding the high-temperature flue gas backflow and improving heat utilization, making it difficult to meet the needs of energy conservation, emission reduction, and improved cooking efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a pot rack and a gas stove with a simple structure, easy to manufacture and install, and capable of guiding the high-temperature flue gas backflow, making the flue gas more likely to accumulate at the bottom of the pot, thereby improving cooking efficiency, thereby reducing heat loss, reducing energy waste, and improving combustion energy consumption.

[0004] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a pot rack, which includes an annular body and supporting components; The support is connected to the annular body and is used to place the cookware; the annular body encloses the energy-concentrating zone and is equipped with a reflux section; The recirculation section is used to guide the flue gas from the top of the annular main body to the energy-concentrating zone.

[0005] In an optional embodiment, the annular body is hollow to form an inner cavity, and the reflux section includes a reflux port and a guide port communicating with the inner cavity; the reflux port is located on the inner side of the annular body surrounding the top of the energy-concentrating zone, or the reflux port is located at the top of the annular body; the guide port is located on the inner side of the annular body surrounding the bottom of the energy-concentrating zone. Alternatively, the reflux section includes at least one flow channel formed in the annular body, with both ends of the flow channel open and respectively forming a reflux port and a flow guide port; wherein, the reflux port is located on the inner side of the annular body surrounding the top of the energy-concentrating zone, or located at the top of the annular body; the flow guide port is located on the inner side of the annular body surrounding the bottom of the energy-concentrating zone.

[0006] In an optional embodiment, at least one air vortex plate is disposed on the inner side of the annular body, and the air vortex plate is arranged around the center line of the annular body. Along the centerline of the annular body, the air vortex vane is located in the area between the return port and the guide port.

[0007] In an optional embodiment, the annular body is hollow to form an inner cavity; The annular body is equipped with multiple return ports, which are spaced apart around the center line of the annular body, and the guide ports are arranged in a ring around the center line of the annular body; or, the return ports are arranged in a ring around the center line of the annular body, and the annular body is equipped with multiple guide ports, which are spaced apart around the center line of the annular body.

[0008] In an optional embodiment, the return port is located on the inner side of the annular body surrounding the top of the energy-concentrating zone and is spaced apart from the end face of the annular body, and the inflow direction of the airflow introduced into the inner cavity through the return port is inclined downward.

[0009] In an optional embodiment, a flue gas guide plate is connected to the side of the return port away from the guide port; the flue gas guide plate is inclined relative to the horizontal direction towards the pot, and a groove is provided on the side of the flue gas guide plate away from the guide port.

[0010] In an optional embodiment, the recirculation section further includes a flue gas guide plate arranged in a ring around the center line of the annular body; or, the recirculation section further includes a plurality of flue gas guide plates spaced apart around the center line of the annular body. The flue gas guide plate is located on the side of the guide port away from the return port, and is tilted towards the pot relative to the horizontal direction.

[0011] In an optional embodiment, the airflow introduced into the inner cavity through the return port is inclined downward and forms an angle of 15°-25° with the horizontal direction. The flue gas guide vane is tilted towards the cookware relative to the horizontal direction, and the flue gas guide vane forms an angle of 35°-45° with the horizontal direction; The flue gas guide vane forms an angle of 10°-20° with the horizontal direction.

[0012] In an optional embodiment, at least one of the flue gas guide vane and the flue gas flow guide vane is detachably connected to the annular body.

[0013] Secondly, this utility model provides a gas stove, which includes a stove body, a burner, and the aforementioned pot rack. Both the burner and the pot rack are connected to the main body of the stove; along the center line of the annular main body, the burner's flame cap is located within the projection of the energy-concentrating zone. The inner side of the annular body is connected to a flue gas guide plate, and the flue gas guide plate is spaced apart from the outer ring flame hole of the flame cap along the center line of the annular body.

[0014] The beneficial effects of the pot rack and gas stove provided in this embodiment of the invention include: This pot holder, used in gas stoves, features a simple structure that is easy to manufacture and install. When the gas stove is operating, the return section on the annular body guides the high-temperature flue gas back, preventing it from escaping into the environment and causing significant heat loss. The returned high-temperature flue gas, after being guided to the bottom of the energy-concentrating zone, more easily collects at the bottom of the pot, thus improving the recovery and utilization rate of the high-temperature flue gas and increasing cooking efficiency. Furthermore, by reducing heat loss from the high-temperature flue gas and recovering and utilizing it through return flow, the residence time of the high-temperature flue gas generated during burner operation is extended, thereby reducing energy waste and improving combustion efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the pot frame provided in this embodiment; Figure 2 This is a cross-sectional view of the pot frame provided in this embodiment from a first-view perspective; Figure 3 This is a cross-sectional view of the pot frame provided in this embodiment from a second perspective; Figure 4 This is a schematic diagram of the flow of high-temperature flue gas provided in this embodiment; Figure 5 This is a schematic diagram of the annular main body provided in this embodiment; Figure 6 Figure 2 A partial schematic diagram of point A in the middle.

[0017] Icons: 100-Pot rack; 110-Ring-shaped body; 120-Support component; 130-Return section; 101-Energy-concentrating zone; 111-Inner cavity; 112-Return port; 113-Guide port; 114-Air vortex vane; 115-Flue gas guide vane; 116-Flue gas guide vane. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, 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, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0024] Please refer to Figures 1-3 , Figure 3 The middle arrow B indicates the flow direction of the high-temperature flue gas. This embodiment provides a pot frame 100, which includes an annular body 110 and a support member 120. The support member 120 is connected to the annular body 110, and the support member 120 is used to place the cookware; the annular body 110 encloses the energy-concentrating zone 101, and the annular body 110 is provided with a reflux section 130; The return section 130 is used to guide the flue gas from the top of the annular body 110 to the energy-concentrating zone 101.

[0025] It should be noted that when configuring the annular body 110, it is a closed ring. Therefore, its structure can be a regular circle or square, or other irregular enclosed structure. Its specific shape can be adjusted according to actual needs. In this embodiment, the annular body 110 is a circle as an example. That is, in this embodiment, the center line of the annular body 110 is its axis. Secondly, the annular body 110 encloses the energy-concentrating zone 101, which is located inside the pot frame 100, forming a relatively enclosed space. This space can effectively concentrate the heat generated by the burner, reduce the heat loss to the surrounding environment, and make the heat act more concentrated on the bottom of the pot, thereby improving the initial utilization efficiency of the heat. Furthermore, in this embodiment, when configuring the pot rack 100, its top end is the end closest to the pot, and its bottom end is the end closest to the burner or stove body. Figures 1-3 In the middle, the upper end is the top end and the lower end is the bottom end; in addition, in this application, the example is that the center line of the annular body 110 is parallel to the vertical direction. When configuring the support 120, it may include multiple feet. The feet may be welded to the annular body 110 or detachably connected. The feet are used to firmly support the cookware and ensure the stability of the cookware on the pot rack 100. Their shape and size are designed according to actual usage needs and can be adapted to cookware of different specifications, providing a reliable support base for the cookware.

[0026] Please refer to Figures 1-3 The working principle of the pot rack 100 is as follows: First, when the pot rack 100 is applied to a gas stove, it is placed above the burner and the burner's flame cap is located within the projection of the energy-concentrating zone 101, or placed on the outer periphery of the burner's flame cap. As the burner of the gas stove works, the high-temperature flue gas it generates will rise rapidly. During the process of the high-temperature flue gas rising, it will be dissipated to the outside through the area of ​​the annular body 110 near the bottom of the pot and the top area of ​​the energy-concentrating zone 101. Therefore, to reduce the loss of high-temperature flue gas and avoid reduced cooking efficiency and high combustion energy consumption, a return section 130 is provided on the annular body 110. Through the arrangement of the return section 130, the flue gas at the top of the annular body 110 can be guided to the energy-concentrating zone 101 along the rising path of the high-temperature flue gas. The guided flue gas can be high-temperature flue gas near the bottom of the cookware or high-temperature flue gas at the top of the energy-concentrating zone 101. Furthermore, to ensure that the high-temperature flue gas returning through the aforementioned return section 130 can... The high-temperature flue gas can be returned to the energy-concentrating zone 101 for secondary combustion or to recover and utilize the heat in the high-temperature flue gas, and to increase its residence time in the energy-concentrating zone. Therefore, the high-temperature flue gas is guided to the bottom of the energy-concentrating zone 101. That is, through the setting of the return section 130, the high-temperature flue gas can be guided back, thereby avoiding the high-temperature flue gas from dissipating into the environment and causing a large amount of heat loss. After the returned high-temperature flue gas is introduced to the bottom of the energy-concentrating zone 101, it can be more easily collected at the bottom of the pot. It should be noted that since the return section 130 is configured on the annular body 110, and based on the structural configuration of the annular body 110, in the process of guiding the high-temperature flue gas back, it guides the flue gas located in the outer ring area at the bottom of the cookware and the outer ring area at the top of the energy-concentrating zone 101. That is, it returns some of the high-temperature flue gas that may be lost. The guiding effect of the return section 130 will not affect the normal heating of the cookware or the normal operation of the burner. Therefore, the pot rack 100 can improve the recovery and utilization rate of high-temperature flue gas, thereby improving cooking efficiency. On this basis, by reducing the heat loss in the high-temperature flue gas and recovering and utilizing the heat in the high-temperature flue gas through high-temperature flue gas recirculation, the residence time of the high-temperature flue gas generated during burner operation is extended, thereby reducing energy waste and improving combustion energy consumption. Moreover, the overall structure of the pot rack 100 is simple, easy to manufacture and install, thereby reducing the cost of use.

[0027] Furthermore, based on the above, it can be seen that when the reflux section 130 is configured, its function is to guide the high-temperature flue gas to reflux. On this basis, when configuring the reflux section 130, there are multiple structural configurations. The following will use two of them as examples for explanation. For details, please refer to Figures 1-6In this embodiment, the annular body 110 is hollow to form an inner cavity 111. Based on this, the return section 130 includes a return port 112 and a guide port 113 communicating with the inner cavity 111. Thus, based on the hollow annular body 110, high-temperature flue gas can be introduced through the return port 112 and discharged through the guide port 113. When configuring the return port 112, as described above, the return section 130 can... High-temperature flue gas is diverted into the energy-concentrating zone 101. That is, the high-temperature flue gas in the area of ​​the annular body 110 near the bottom of the cookware or the high-temperature flue gas in the top area of ​​the energy-concentrating zone 101 is diverted to the bottom of the energy-concentrating zone 101. Therefore, the return port 112 can be set on the inner side of the annular body 110 surrounding the top of the energy-concentrating zone 101, or the return port 112 can be set on the end face of the annular body 110 near the bottom of the cookware; while the guide port 113 is set on the inner side of the annular body 110 surrounding the bottom of the energy-concentrating zone 101. Thus, through the above structural arrangement, the high-temperature flue gas in the adjacent area can be guided through the return port 112 located on the inner side of the annular body 110 surrounding the top of the energy-concentrating zone 101, or the return port 112 located on the end face of the annular body 110 near the bottom of the pot, and the high-temperature flue gas can be guided into the inner cavity 111. Moreover, the arrangement of the return port 112 allows the high-temperature flue gas to pass through in an orderly manner during the return process, avoiding the disorderly diffusion of flue gas, and creating conditions for the further guidance and accumulation of subsequent flue gas. Then, the flue gas is released through the guide port 113 to the bottom of the energy-concentrating zone 101, thereby recovering and utilizing the high-temperature flue gas to improve the recovery and utilization rate of the high-temperature flue gas, thereby improving cooking efficiency, reducing energy waste, and increasing combustion energy consumption.

[0028] It should be noted that in this embodiment, the annular body 110 is hollow to form the inner cavity 111. This arrangement enhances the energy-concentrating effect. The hollow annular body 110 reduces heat radiation outward and, together with the energy-concentrating zone 101, forms a highly efficient heat-gathering area, allowing more heat to concentrate at the bottom of the cookware and improving heat transfer efficiency. Furthermore, this embodiment uses the method of setting the return port 112 on the inner side of the annular body 110 surrounding the top of the energy-concentrating zone 101 as an example for illustration. In other embodiments of this utility model, the return port 112 can be set on the inner side or end face of the annular body 110 as needed, or the return port 112 can be set on both the inner side and end face of the annular body 110.

[0029] Unlike the aforementioned arrangement of the reflux section 130, in other embodiments of this utility model, the reflux section 130 may further include at least one flow channel (not shown in the figures) formed in the annular body 110. The two ends of the flow channel are open and respectively form a reflux port (not shown in the figures) and a flow port (not shown in the figures). That is, based on the annular body 110 being a solid structure, a flow channel can be provided, and the two ends of the channel can be open to form a reflux port and a flow port. The reflux port is located on the inner side of the annular body 110 surrounding the top of the energy-concentrating zone 101, or on the top of the annular body 110; the flow port is located on the inner side of the annular body 110 surrounding the bottom of the energy-concentrating zone 101. Therefore, through the above structural arrangement, the high-temperature flue gas in the adjacent area can be diverted through the return port located on the inner side of the annular body 110 surrounding the top of the energy-concentrating zone 101, or the return port located on the end face of the annular body 110 near the bottom of the cookware, and diverted into the inner cavity 111. Then, it is released to the bottom of the energy-concentrating zone 101 through the guide port, thereby recovering and utilizing the high-temperature flue gas. This improves the recovery and utilization rate of the high-temperature flue gas, thereby increasing cooking efficiency, reducing energy waste, and improving combustion energy consumption. It should be noted that when the return section 130 adopts a guide channel arrangement, its number can be set according to actual needs. When there are multiple channels, they can be arranged at intervals around the center line of the annular body 110.

[0030] Further, please refer to Figures 1-6 In this embodiment, at least one air vortex vane 114 is disposed on the inner side of the annular body 110, and the air vortex vane 114 is arranged around the center line of the annular body 110. Along the center line direction of the annular body 110, the air vortex vane 114 is located in the area between the return port 112 and the guide port 113. Moreover, when multiple air vortex vanes 114 are disposed, the multiple air vortex vanes 114 are arranged at intervals along the center line of the annular body. Thus, when the burner is in use, the high-temperature flue gas in the energy-concentrating zone 101 will encounter the air vortex vane 114 during its ascent. Since the air vortex vane 114 has a specific angle, the high-temperature flue gas changes its direction of movement under the guidance of the air vortex vane 114 and flows towards the burner, providing initial power for the return and reuse of the high-temperature flue gas.

[0031] In this embodiment, since the annular body 110 is hollow to form the inner cavity 111, the following methods can be used when configuring the return port 112 and the guide port 113; Firstly, in this embodiment, the number of return ports 112 is set to multiple, while the number of guide ports 113 is set to one. Specifically, the annular body 110 is configured with multiple return ports 112, which are spaced apart around the center line of the annular body 110, while the guide port 113 is arranged in a ring around the center line of the annular body 110. The purpose of this arrangement is to maintain the structural strength and stability of the annular body 110 by spaced out the return ports 112 around the center line of the annular body 110 and arranged in a ring around the center line of the annular body 110, based on the shell structure of the annular body 110. Moreover, the arrangement of multiple return ports 112 can improve the return efficiency of high-temperature flue gas. In addition, in other embodiments of this utility model, the number of return ports 112 can be one, while the number of guide ports 113 can be multiple. That is, the return ports 112 are arranged in a ring around the center line of the annular body 110, and the annular body 110 is equipped with multiple guide ports 113, which are spaced apart around the center line of the annular body 110.

[0032] It should be noted that the above two methods can be used selectively according to actual needs, and their structural settings can maintain the structural strength and stability of the annular main body 110. Moreover, the setting of multiple return ports 112 can improve the return efficiency of high-temperature flue gas.

[0033] Furthermore, when configuring the return port 112, its function is to guide the high-temperature flue gas, that is, please refer to... Figures 1-6 In this embodiment, the high-temperature flue gas is guided into the inner cavity 111. Based on this, by setting the return port 112 on the inner side of the annular body 110 surrounding the top of the energy-concentrating zone 101, the position of the return port 112 can be spaced apart from the end face of the annular body 110, and the inflow direction of the airflow introduced into the inner cavity 111 through the return port 112 is inclined downward. In this way, the guiding efficiency of the high-temperature flue gas at the top of the energy-concentrating zone 101 is improved. Moreover, when configuring the return port 112, due to its inclined setting, the airflow introduced into the inner cavity 111 through the return port 112 tends to move towards the guide port 113, thereby promoting the flow of high-temperature flue gas and improving its return efficiency. Specifically, based on the configuration of multiple return ports 112, the return ports 112 can be positioned 2–4 mm away from the end face of the annular body 110, and the number of return ports 112 can be 12–18, their shape can be rectangular or oblong, and their area is 30–50 mm. Furthermore, the downward inflow direction of the airflow introduced into the inner cavity 111 through the return port 112 can give the flue gas a natural "downward inclination" initial velocity vector, which can promote the flow of high-temperature flue gas and improve its return efficiency.

[0034] Further, please refer to Figures 1-6 Based on the above structure, in order to guide the high-temperature flue gas as it is introduced into the inner cavity 111 through the return port 112, a flue gas guide plate 115 is connected to the side of the return port 112 away from the guide port 113. The flue gas guide plate 115 is inclined towards the pot relative to the horizontal direction. Thus, with this arrangement, the high-temperature flue gas at the top of the energy-concentrating zone 101 can be guided by the flue gas guide plate 115 to move into the return port 112 and the inner cavity 111. Moreover, the side of the flue gas guide plate 115 away from the guide port 113 is provided with a groove to break up the flue gas boundary layer and enhance heat transfer.

[0035] Specifically, when configuring the flue gas guide plate 115, it is installed on the high-temperature flue gas inlet. The flue gas guide plate 115 has a specific shape and angle, which can guide the high-temperature flue gas passing through the return port 112 for a secondary purpose, so that the flue gas flows more accurately towards the bottom of the pot, further improving the flue gas return effect. The flue gas guide plate 115 can be integrally stamped or laser-welded to the upper edge of the return port 112. Its thickness is 0.6 mm, width is 4–6 mm, and length is 8–12 mm. The back of the guide plate is provided with a 0.3 mm shallow groove to break the flue gas boundary layer and enhance heat transfer.

[0036] After the high-temperature flue gas is discharged from the guide port 113, in order to guide the discharged high-temperature flue gas so that it can move in the upward direction, the return section 130 also includes a flue gas guide plate 116 arranged in a ring around the center line of the annular body 110; or, the return section 130 also includes a plurality of flue gas guide plates 116 arranged at intervals around the center line of the annular body 110. Among them, the flue gas guide plate 116 is located on the side of the guide port 113 away from the return port 112, and is inclined towards the pot relative to the horizontal direction.

[0037] With this configuration, the flue gas released through the guide port 113 can move towards the top of the energy-concentrating zone 101, thereby improving the return efficiency of the high-temperature flue gas, based on the flue gas guide plate 116.

[0038] Furthermore, when configuring the flue gas guide plate 116, the flue gas guide plate 116 makes the high-temperature flue gas form a more concentrated accumulation area at the bottom of the pot, ensuring that the bottom of the pot can fully absorb the heat in the high-temperature flue gas, minimizing heat loss and improving energy efficiency; and after the pot rack 100 is configured on the gas stove, it can be located 5-8 mm above the outer ring flame hole of the burner, with a thickness of 0.8 mm and a width of 6-10 mm, guiding the backflow flue gas to converge towards the center of the pot bottom; the surface of the guide plate is also coated with an infrared reflective coating to reduce heat loss.

[0039] Based on the above, please refer to Figures 1-6 In this embodiment, the return port 112, the flue gas guide plate 115, and the flue gas guide plate 116 are all inclined. The purpose is to guide the high-temperature flue gas multiple times during the return process, thereby improving the return efficiency of the high-temperature flue gas. Specifically, the airflow introduced into the inner cavity 111 through the return port 112 is inclined downwards, and the inflow direction forms an angle of 15°-25° with the horizontal direction; the flue gas guide plate 115 is inclined towards the pot relative to the horizontal direction, and the flue gas guide plate 115 forms an angle of 35°-45° with the horizontal direction; the flue gas guide plate 116 forms an angle of 10°-20° with the horizontal direction.

[0040] It should be noted that when configuring the flue gas guide vane 115, its tilt angle is greater than the angle of the inflow direction of the airflow entering the inner cavity 111 through the return port 112. The purpose of this is to avoid the flue gas guide vane 115 affecting the airflow entering the inner cavity 111 through the return port 112. That is, by making the tilt angle of the flue gas guide vane 115 greater than the angle of the inflow direction of the airflow entering the inner cavity 111 through the return port 112, the guiding function of the flue gas guide vane 115 can be guaranteed, and it is not likely to affect the airflow entering the inner cavity 111 through the return port 112.

[0041] Furthermore, in this embodiment, based on the above structure, the angles of the flue gas guide vane 115 and the flue gas guide vane 116 can be adjusted according to usage requirements. Therefore, at least one of the flue gas guide vane 115 and the flue gas guide vane 116 is detachably connected to the annular body 110. That is, when configuring the flue gas guide vane 115 and the flue gas guide vane 116, multiple flue gas guide vanes 115 and the flue gas guide vane 116 with different angles can be manufactured according to requirements. Then, different flue gas guide vanes 115 and the flue gas guide vane 116 can be selected according to requirements to meet different usage needs. Its detachable structure can adopt a snap-on-slide quick-release structure, thereby enabling angle adjustment through disassembly and assembly to adapt to different pot diameters and heat levels. Moreover, it automatically locks after adjustment, and the easy-to-disassemble structure facilitates "tool-free" cleaning and replacement operations, solving the problem of grease buildup and guide failure after long-term use of the energy-concentrating pot rack 100.

[0042] In summary, please refer to Figures 1-6The pot rack 100, through the synergistic effect of the flue gas vortex plate, the reflux section 130, the flue gas guide plate 115, and the flue gas guide plate 116, achieves downward jetting from the top through the reflux port 112 of the reflux section 130 and the setting of the flue gas guide plate 115, as well as their inclined setting, while achieving upward convergence from the bottom through the setting of the flue gas guide plate 116. This optimizes the flow path of high-temperature flue gas, making it easier for high-temperature flue gas to accumulate at the bottom of the pot during reflux. The pot can more fully absorb the heat in the flue gas, and the residence time of high-temperature flue gas is extended by ≥50%. The heat transfer coefficient at the center of the pot bottom is increased by 25%, and the thermal efficiency is increased by another 4 percentage points, thereby significantly improving combustion efficiency and reducing energy waste. Due to the improved energy efficiency, less fuel is required to achieve the same cooking effect, thereby reducing exhaust emissions, which is beneficial to environmental protection and in line with the development trend of energy conservation and emission reduction. In addition, the pot rack 100 has a simple structure and is easy to manufacture and install.

[0043] Based on the above, please refer to Figures 1-6 This embodiment also provides a gas stove, which includes a stove body, a burner, and the aforementioned pot rack 100; both the burner and the pot rack 100 are connected to the stove body; along the center line of the annular body 110, the burner's flame cap is located within the projection of the energy-concentrating zone 101; wherein, a flue gas guide plate 116 is connected to the inner side of the annular body 110, and along the center line of the annular body 110, the flue gas guide plate 116 is spaced apart from the outer ring flame holes of the flame cap.

[0044] By employing the aforementioned pot rack 100, this gas stove can recover and utilize high-temperature flue gas during operation, thereby improving the recovery and utilization rate of high-temperature flue gas and increasing cooking efficiency. Furthermore, by reducing heat loss from the high-temperature flue gas and recovering and utilizing heat from the high-temperature flue gas through high-temperature flue gas recirculation, the residence time of the high-temperature flue gas generated during burner operation is extended, thereby reducing energy waste and improving combustion energy consumption.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A pot rack, characterized in that: The pot rack (100) includes an annular body (110) and a support member (120). The support member (120) is connected to the annular body (110), and the support member (120) is used to place the cookware; the annular body (110) encloses the energy-concentrating area (101), and the annular body (110) is provided with a reflux section (130). The reflux section (130) is used to guide the flue gas at the top of the annular body (110) to the energy-concentrating zone (101).

2. The pot rack according to claim 1, characterized in that: The annular body (110) is hollow to form an inner cavity (111). The reflux section (130) includes a reflux port (112) and a guide port (113) communicating with the inner cavity (111). The reflux port (112) is located on the inner side of the annular body (110) surrounding the top of the energy-concentrating area (101), or the reflux port (112) is located at the top of the annular body (110). The guide port (113) is located on the inner side of the annular body (110) surrounding the bottom of the energy-concentrating area (101). Alternatively, the return section (130) includes at least one flow channel formed in the annular body (110), with both ends of the flow channel open and respectively forming a return port (112) and a flow port (113); wherein, the return port (112) is disposed on the inner side of the annular body (110) surrounding the top of the energy-concentrating area (101), or disposed on the top of the annular body (110); the flow port (113) is disposed on the inner side of the annular body (110) surrounding the bottom of the energy-concentrating area (101).

3. The pot rack according to claim 2, characterized in that: At least one air vortex plate (114) is disposed on the inner side of the annular body (110), and the air vortex plate (114) is arranged around the center line of the annular body (110); Along the centerline of the annular body (110), the air vortex plate (114) is located in the area between the return port (112) and the guide port (113).

4. The pot rack according to claim 2, characterized in that: The annular body (110) is hollow to form an inner cavity (111). The annular body (110) is provided with a plurality of return ports (112), which are spaced apart around the center line of the annular body (110), and the guide ports (113) are arranged in a ring around the center line of the annular body (110); or, the return ports (112) are arranged in a ring around the center line of the annular body (110), and the annular body (110) is provided with a plurality of guide ports (113), which are spaced apart around the center line of the annular body (110).

5. The pot rack according to claim 2, characterized in that: The return port (112) is located on the inner side of the annular body (110) surrounding the top of the energy-concentrating area (101), and is spaced apart from the end face of the annular body (110). The inflow direction of the airflow introduced into the inner cavity (111) through the return port (112) is inclined downward.

6. The pot rack according to claim 5, characterized in that: The return port (112) is connected to a flue gas guide plate (115) on the side away from the guide port (113); the flue gas guide plate (115) is inclined towards the pot in the horizontal direction, and the side of the flue gas guide plate (115) away from the guide port (113) is provided with a groove.

7. The pot rack according to any one of claims 2-6, characterized in that: The return section (130) further includes a flue gas guide plate (116) arranged in a ring around the center line of the annular body (110); or, the return section (130) further includes a plurality of flue gas guide plates (116) arranged at intervals around the center line of the annular body (110). The flue gas guide plate (116) is located on the side of the guide port (113) away from the return port (112) and is inclined towards the pot relative to the horizontal direction.

8. The pot rack according to claim 7, characterized in that: The airflow introduced into the inner cavity (111) through the return port (112) has a downward inflow direction and the inflow direction forms an angle of 15°-25° with the horizontal direction; The flue gas guide vane (115) is inclined toward the pot relative to the horizontal direction, and the flue gas guide vane (115) forms an angle of 35°-45° with the horizontal direction; The flue gas guide plate (116) forms an angle of 10°-20° with the horizontal direction.

9. The pot rack according to claim 7, characterized in that: At least one of the flue gas guide plate (116) and the flue gas guide plate (115) is detachably connected to the annular body (110).

10. A gas stove, characterized in that: The gas stove includes a main body, a burner, and a pot rack (100) as described in any one of claims 1-9. The burner and the pot rack (100) are both connected to the main body of the stove; along the center line of the annular main body (110), the burner's flame cap is located within the projection of the energy-concentrating zone (101); The inner side of the annular body (110) is connected to a flue gas guide plate (116), and the flue gas guide plate (116) is spaced apart from the outer ring fire hole of the flame cap along the center line of the annular body (110).

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