Pot rack and gas stove

Abstract

The utility model relates to the technical field of kitchen utensils, in particular to a pot rack and a gas stove, the pot rack comprises an energy gathering disc, a plurality of foot pieces connected to the energy gathering disc and a crescent-shaped turbulence body arranged on the upper surface of the energy gathering disc in a protruding mode, the foot pieces are used for supporting a pot, and the crescent-shaped turbulence body is provided with an outward-protruding facing face and an inward-concave back face. The facing face is close to the inner edge of the energy gathering disc relative to the back face, the facing face protrudes towards the inner edge of the energy gathering disc, the crescent-shaped turbulent flow body can increase the flowing thermal resistance to high-temperature flue gas so as to reduce the flowing speed of the high-temperature flue gas, and energy can be gathered more effectively. Moreover, the crescent turbulent flow body can form more effective smoke vortex, so that the residence time of high-temperature smoke in the energy gathering disc is prolonged, the heat exchange time of the high-temperature smoke and the pan bottom is prolonged, the heat exchange efficiency of the pan bottom is improved, the heat energy is more effectively utilized, and the heat energy loss is reduced; and heat exchange of combustion heat energy to the bottom of the boiler and smoke emission can be balanced, and the combustion heat efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen utensils, in particular to a pot rack and a gas stove. Background Art

[0002] A gas stove refers to a kitchen utensil that uses gas as a medium for combustion and heating. It is now widely used in household kitchens. Generally, a pot rack for supporting gas cooking utensils such as a frying pan and a rice cooker is provided on the gas stove.

[0003] In the prior art, a pot rack with an annular energy-gathering disk is provided. A semi-closed combustion space is formed between the burner and the bottom of the pot through the annular energy-gathering disk pot rack, so that the high-temperature flue gas generated by combustion is gathered in the combustion space, enhancing the heat exchange amount between the burner and the bottom of the pot to improve the thermal efficiency of the gas stove. However, the structural design of the pot rack with an energy-gathering disk can only form a single vortex structure, which can only extend the residence time of the high-temperature flue gas to a certain extent, and there is still a large loss of heat energy, affecting the improvement of the thermal efficiency of the gas stove. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pot rack and a gas stove to reduce heat energy loss, improve the heat exchange effect between the pot rack and the bottom of the pot, and improve the thermal efficiency of the gas stove.

[0005] On the one hand, the utility model provides a pot rack, which includes an energy-gathering disk and a plurality of foot pieces connected to the energy-gathering disk. The energy-gathering disk has a central through hole. The pot rack further includes a crescent-shaped spoiler protruding from the upper surface of the energy-gathering disk. The crescent-shaped spoiler has a convex front-facing surface and a concave back-facing surface. The front-facing surface and the back-facing surface intersect. The front-facing surface is closer to the inner edge of the energy-gathering disk than the back-facing surface, and the front-facing surface protrudes towards the inner edge of the energy-gathering disk.

[0006] As a preferred technical solution of the pot rack, the pot rack includes a plurality of the crescent-shaped spoilers, and the plurality of crescent-shaped spoilers are evenly distributed along the circumferential direction of the energy-gathering disk.

[0007] As a preferred technical solution of the pot rack, any two adjacent crescent-shaped spoilers are spaced apart.

[0008] As a preferred technical solution of the pot rack, the outer edge of the energy-gathering disk is higher than the inner edge of the energy-gathering disk, and the crescent-shaped spoiler is higher than the inner edge of the energy-gathering disk and lower than the outer edge of the energy-gathering disk.

[0009] As a preferred technical solution of the pot rack, the pot rack further includes a wave-peak-shaped spoiler protruding from the upper surface of the energy-gathering disk, and the wave-peak-shaped spoiler is closer to the inner edge of the energy-gathering disk than the crescent-shaped spoiler.

[0010] As a preferred technical solution of the pot rack, the wave-shaped turbulator is annular, and the center line of the wave-shaped turbulator coincides with the center line of the central through hole.

[0011] As a preferred technical solution of the pot rack, the energy concentrating disc includes an upper disc in an annular shape and a lower disc in an annular shape. The upper disc and the lower disc are connected and enclose an air cavity.

[0012] As a preferred technical solution of the pot rack, the height of the inner edge of the upper surface of the upper disc is lower than the height of the outer edge of the upper surface of the upper disc.

[0013] The pot rack provided by the present utility model has at least the following beneficial effects:

[0014] The pot rack includes an energy concentrating disc, a plurality of foot pieces connected to the energy concentrating disc, and a crescent-shaped turbulator protruding from the upper surface of the energy concentrating disc. The plurality of foot pieces are used to support the cooking utensil. The crescent-shaped turbulator has a convex facing surface and a concave back surface. The facing surface and the back surface intersect. The facing surface is closer to the inner edge of the energy concentrating disc than the back surface, and the facing surface protrudes towards the inner edge of the energy concentrating disc. By providing the crescent-shaped turbulator on the upper surface of the energy concentrating disc, the flow thermal resistance of the high-temperature flue gas can be increased to reduce the flow velocity of the high-temperature flue gas, and the energy can be concentrated more effectively; and the crescent-shaped turbulator can also form a more effective flue gas vortex, extend the residence time of the high-temperature flue gas in the energy concentrating disc, increase the heat exchange time between the high-temperature flue gas and the bottom of the pot, improve the heat exchange efficiency of the bottom of the pot, make the heat energy be utilized more effectively, reduce the heat energy loss. At the same time, it can make the heat exchange of the combustion heat energy to the bottom of the pot and the flue gas emission reach equilibrium, realize the best effect of the overall combustion condition, and thus improve the combustion thermal efficiency.

[0015] On the other hand, the present utility model provides a gas stove, including the pot rack in any of the above solutions. The gas stove further includes a burner, and the burner penetrates through the central through hole.

[0016] As a preferred technical solution of the gas stove, the outer periphery of the burner is in clearance fit with the inner wall of the central through hole.

[0017] The gas stove provided by the present utility model has at least the following beneficial effects:

[0018] The gas stove includes the above pot rack, and this pot rack can significantly improve the combustion efficiency of the gas stove. Description of the Drawings

[0019] Figure 1 It is a cross-sectional view of the gas stove in the embodiment of the present utility model;

[0020] Figure 2 It is a structural schematic diagram of the pot rack in the embodiment of the present utility model;

[0021] Figure 3This is a cross-sectional view of the pot rack in the embodiment of the present utility model.

[0022] In the figure:

[0023] 10. Pot rack; 20. Burner;

[0024] 1. Energy-gathering disc; 11. Upper disc; 12. Lower disc; 13. Central through-hole; 14. Air cavity;

[0025] 2. Foot piece;

[0026] 3. Crescent-shaped spoiler; 31. Oncoming surface; 32. Back surface;

[0027] 4. Crest-shaped spoiler;

[0028] 5. Bottom foot. Detailed implementation mode

[0029] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0033] As Figures 1 to 3 shown, this embodiment provides a gas stove, which includes a pot rack 10 and a burner 20. The pot rack 10 includes a heat - concentrating disk 1 and a plurality of foot pieces 2 connected to the heat - concentrating disk 1. The plurality of foot pieces 2 are used to support the cookware. The heat - concentrating disk 1 has a central through - hole 13, and the burner 20 passes through the central through - hole 13. The burner 20 is used to introduce gas and cause the gas to undergo a combustion reaction. The heat generated by the combustion reaction is used to heat the cookware for cooking. By providing the heat - concentrating disk 1, the high - temperature flue gas generated by combustion is gathered inside the heat - concentrating disk 1, enhancing the heat exchange amount between the burner 20 and the bottom of the pot and improving the thermal efficiency of the gas stove.

[0034] In this embodiment, the plurality of foot pieces 2 are evenly distributed along the circumferential direction of the heat - concentrating disk 1 to ensure stable support for the cookware. Among them, the number of the foot pieces 2 can be three or more. Specifically, the number of the foot pieces 2 can be three, four, or five.

[0035] Optionally, the outer periphery of the burner 20 and the inner wall of the central through - hole 13 are in clearance fit. With such a setting, the gap between the inner wall of the central through - hole 13 and the outer periphery of the burner 20 can form a channel for air circulation, so as to supply secondary air for the combustion reaction of the fuel.

[0036] Optionally, a plurality of feet 5 are provided on the bottom surface of the energy - concentrating disc 1. The plurality of feet 5 are evenly distributed along the circumferential direction of the energy - concentrating disc 1. The feet 5 are used for mounting on the panel of the gas stove and for making the bottom surface of the energy - concentrating disc 1 and the panel of the gas stove spaced apart, so that air can sequentially enter above the energy - concentrating disc 1 through the space between the bottom surface of the energy - concentrating disc 1 and the panel of the gas stove and the gap between the inner wall of the central through - hole 13 and the outer periphery of the burner 20 to supply fuel combustion. Specifically, the distance between the bottom surface of the energy - concentrating disc 1 and the panel of the gas stove can be between 5 mm and 10 mm, such as 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm or 10 mm.

[0037] The structural design of the existing pot rack with an energy - concentrating disc can only extend the residence time of high - temperature flue gas to a certain extent, and there is still a large loss of heat energy, which affects the improvement of the thermal efficiency of the gas stove.

[0038] For this, please refer to Figures 1 to 3 In this regard, the pot rack 10 further includes a crescent - shaped spoiler 3 protruding from the upper surface of the energy - concentrating disc 1. The crescent - shaped spoiler 3 has a convex facing surface 31 and a concave back surface 32. The facing surface 31 and the back surface 32 intersect. The facing surface 31 is closer to the inner edge of the energy - concentrating disc 1 than the back surface 32, and the facing surface 31 protrudes towards the inner edge of the energy - concentrating disc 1. By providing the crescent - shaped spoiler 3 on the upper surface of the energy - concentrating disc 1, the flow thermal resistance of the high - temperature flue gas can be increased to reduce the flow velocity of the high - temperature flue gas, and the energy can be concentrated more effectively; and the crescent - shaped spoiler 3 can also form a more effective flue gas vortex, extend the residence time of the high - temperature flue gas in the energy - concentrating disc 1, increase the heat - exchange time between the high - temperature flue gas and the bottom of the pot, improve the heat - exchange efficiency of the bottom of the pot, make the heat energy be utilized more effectively, reduce the heat - energy loss. At the same time, it can make the heat exchange of the combustion heat energy to the bottom of the pot and the flue gas emission reach an equilibrium, achieving the best overall combustion condition, thereby improving the combustion thermal efficiency. Among them, the principle of the crescent - shaped spoiler 3 forming a standing vortex is a prior art and will not be elaborated here. Both the facing surface 31 and the back surface 32 can be arc - shaped surfaces.

[0039] In addition, the setting of the crescent - shaped spoiler 3 enhances the diversity of the standing vortex. When the flue gas flows through the facing surface 31 of the crescent - shaped spoiler 3, longitudinal vortices and transverse vortices can be formed respectively in the direction perpendicular to the ground and parallel to the ground. And the back surface 32 of the crescent - shaped spoiler 3 can play a protective role for the vortex group, and the high - temperature flue gas can stay for a relatively long time.

[0040] Optionally, the pot rack 10 includes a plurality of crescent - shaped spoilers 3. The plurality of crescent - shaped spoilers 3 are evenly distributed along the circumferential direction of the energy - concentrating disc 1. With such a setting, the uniformity of the heat exchange between the high - temperature flue gas and the bottom of the pot can be ensured in the circumferential direction of the energy - concentrating disc 1.

[0041] Optionally, any two adjacent crescent-shaped turbulators 3 are spaced apart. With this arrangement, there is a gap between any two adjacent crescent-shaped turbulators 3, which will not affect the replenishment of secondary air and can well control the flue gas emission. Therefore, the combustion and heat transfer conditions can be adjusted by appropriately controlling the number of crescent-shaped turbulators 3.

[0042] Optionally, the pot support 10 further includes a wave-peak-shaped turbulator 4 protruding from the upper surface of the energy-gathering disc 1. The wave-peak-shaped turbulator 4 is relatively closer to the inner edge of the energy-gathering disc 1 than the crescent-shaped turbulator 3. By providing the wave-peak-shaped turbulator 4, a standing vortex can also be formed to further enhance the combustion efficiency of the burner 20. In this embodiment, the cross-sectional shape of the wave-peak-shaped turbulator 4 is in the shape of a wave peak, and this cross-section coincides with the center line of the central through hole 13. Preferably, the wave-peak-shaped turbulator 4 is annular, and the center line of the wave-peak-shaped turbulator 4 coincides with the center line of the central through hole 13, so as to ensure the uniformity of heat transfer between the high-temperature flue gas and the bottom of the pot in the circumferential direction of the energy-gathering disc 1.

[0043] Specifically, in this embodiment, the crescent-shaped turbulator 3 can generate a high-vortex field, and the wave-peak-shaped turbulator 4 can generate a low-vortex field. The setting of the vortex field is conducive to the downward diffusion of the high-temperature flue gas during movement. Combining with the upward movement generated by the high-temperature flue gas when it encounters the crescent-shaped turbulator 3, a special high-temperature flue gas vortex can be formed, extending the residence time of the high-temperature flue gas in the energy-gathering disc 1; in addition, the vortex velocities of the high-vortex field and the low-vortex field are different. When the two vortices collide, a turbulent flow that can extend the retention of the high-temperature flue gas can be further formed, thereby greatly increasing the heat transfer time between the high-temperature flue gas and the bottom of the pot, strengthening the heat transfer intensity with the bottom of the pot, and improving the thermal energy utilization rate. In addition, the setting of the vortex field can also play a more effective heat preservation role in the combustion area of the burner 20, further enhancing the energy-gathering effect and improving the combustion thermal efficiency.

[0044] It should be noted that in this embodiment, the design of the length dimensions of the high-vortex field and the low-vortex field should be related to the flue gas flow velocity in the two vortex fields; in the circumferential direction of the energy-gathering disc 1, the uniformity of heat transfer between the high-temperature flue gas and the bottom of the pot can be ensured by a plurality of evenly and spaced crescent-shaped turbulators 3 and an annular wave-peak-shaped turbulator 4.

[0045] Optionally, the energy-gathering disc 1 includes an annular upper disc 11 and an annular lower disc 12. The upper disc 11 and the lower disc 12 are connected and enclose an air cavity 14. Specifically, the foot pieces 2, the crescent-shaped turbulators 3 and the wave-peak-shaped turbulators 4 are all arranged on the upper disc 11; the central through hole 13 is composed of the hole in the middle of the upper disc 11 and the hole in the middle of the lower disc 12.

[0046] In other embodiments, the energy concentrating disc 1 can also be set as a single-layer structure according to needs, that is, the upper disc 11 and the lower disc 12 are integrally formed; or, it can be set as a three-layer structure according to needs, that is, the energy concentrating disc 1 includes an upper disc, a middle disc and a lower disc arranged in sequence from top to bottom.

[0047] Optionally, the height of the inner edge of the upper surface of the upper disc 11 is lower than the height of the outer edge of the upper surface of the upper disc 11. With such a setting, the energy concentrating disc 1 gathers into a sunken space, which is beneficial to the gathering of combustion heat energy, thereby enhancing the heating of the bottom of the pot and reducing heat energy loss. Further optionally, the crescent-shaped turbulator 3 is higher than the inner edge of the energy concentrating disc 1 and lower than the outer edge of the energy concentrating disc 1.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A pot stand, comprising an energy-gathering plate (1) and a plurality of legs (2) connected to the energy-gathering plate (1), wherein the energy-gathering plate (1) has a central through hole (13), characterized in that: The pot stand further comprises a crescent-shaped disrupting body (3) protruding from the upper surface of the energy gathering disk (1), the crescent-shaped disrupting body (3) comprising an outwardly convex facing surface (31) and an inwardly concave rearward facing surface (32), the facing surface (31) and the rearward facing surface (32) intersecting each other, the facing surface (31) being closer to the inner edge of the energy gathering disk (1) relative to the rearward facing surface (32), and the facing surface (31) protruding toward the inner edge of the energy gathering disk (1).

2. The pot support according to claim 1, characterized in that: The pot support comprises a plurality of the crescent-shaped fluid-disturbing bodies (3), and the plurality of the crescent-shaped fluid-disturbing bodies (3) are evenly distributed along the circumferential direction of the energy-gathering disk (1).

3. The pot support according to claim 2, characterized in that: Any two adjacent crescent-shaped disrupting bodies (3) are arranged with a gap.

4. The pot support according to claim 1, characterized in that: The outer edge of the energy concentrating disk (1) is higher than the inner edge of the energy concentrating disk (1), and the crescent-shaped disrupting body (3) is higher than the inner edge of the energy concentrating disk (1) and lower than the outer edge of the energy concentrating disk (1).

5. The pot support according to any one of claims 1 to 4, characterized in that: The pot stand also includes a wave crest-shaped disrupting body (4) protruding from the upper surface of the energy concentrating plate (1), and the wave crest-shaped disrupting body (4) is closer to the inner edge of the energy concentrating plate (1) relative to the crescent-shaped disrupting body (3).

6. The pot support according to claim 5, characterized in that: The crest-shaped disrupting body (4) is annular, and the center line of the crest-shaped disrupting body (4) coincides with the center line of the central through hole (13).

7. The pot support according to claim 1, characterized in that: The energy-gathering disk (1) comprises an annular upper disk (11) and an annular lower disk (12); the upper disk (11) is connected to the lower disk (12) and encloses an air cavity (14).

8. The pot support according to claim 7, characterized in that: The height of the inner edge of the upper surface of the upper plate (11) is lower than the height of the outer edge of the upper surface of the upper plate (11).

9. A gas stove, characterized in that: The gas stove comprises the pot support according to any one of claims 1 to 8, and further comprises a burner (20), wherein the burner (20) is penetrated through the central through hole (13).

10. The gas stove according to claim 9, characterized in that: The outer periphery of the burner (20) is loosely matched with the inner wall of the central through hole (13).

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