Energy-gathering pot stand and gas stove

Abstract

The present invention provides an energy-gathering pot stand and a gas stove, relating to the technical field of gas stoves. The energy-gathering pot stand comprises an upper plate and a lower plate, the upper and lower plates forming an annular cavity. The upper plate is provided with a high-temperature flue gas inlet and a secondary air outlet, both of which communicate with the cavity, and the high-temperature flue gas inlet is located above the secondary air outlet. The gas stove includes an energy-gathering pot stand. This alleviates the technical problem in the prior art that the energy-gathering pot stand directly discharges high-temperature flue gas, resulting in significant heat loss and reduced thermal efficiency, thereby achieving the technical effect of improving thermal efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of gas stoves, in particular to an energy-gathering pot rack and a gas stove. Background Art

[0002] Currently, the high load capacity and high efficiency of household gas stoves have been the focus of industry competition. Thermal efficiency, as one of the key performance indicators of gas stoves, is gaining increasing attention from users. To improve thermal efficiency, existing technologies typically incorporate a heat-concentrating plate between the burner and the pot base, creating a semi-enclosed combustion chamber. This enhances the heat exchange between the burner and the pot base, thereby improving the thermal efficiency of gas stoves.

[0003] As we all know, combustion requires a certain amount of secondary air. The inflow of cooler secondary air will absorb some heat, causing the temperature of the combustion chamber to drop. At the same time, when the burner exchanges heat with the bottom of the pot, a large amount of high-temperature flue gas will be generated. This part of the flue gas carries away a lot of heat, resulting in reduced thermal efficiency and greater heat loss.

[0004] The structural design of most energy-gathering pot racks and energy-gathering plates on the current market adopts the method of directly exhausting flue gas, which will cause a large amount of heat loss. Summary of the Invention

[0005] The object of the present invention is to provide an energy-gathering pot rack and a gas stove to alleviate the technical problem in the prior art that the energy-gathering pot rack directly discharges high-temperature flue gas, causing a large amount of heat loss and resulting in reduced thermal efficiency.

[0006] In a first aspect, the present invention provides an energy-gathering pot stand, comprising: an upper plate and a lower plate, wherein the upper plate and the lower plate form an annular cavity;

[0007] The upper disk is provided with a high-temperature flue gas inlet and a secondary air outlet. Both the high-temperature flue gas inlet and the secondary air outlet are communicated with the cavity, and the high-temperature flue gas inlet is located above the secondary air outlet.

[0008] Furthermore, a middle heat-insulating layer is provided in the cavity, and the middle heat-insulating layer divides the cavity into a flue gas waste heat collection chamber and a secondary air preheating chamber;

[0009] There is a communication structure between the flue gas waste heat collection chamber and the secondary air preheating chamber;

[0010] The flue gas waste heat collection chamber is communicated with the high-temperature flue gas inlet, and the secondary air preheating chamber is communicated with the secondary air outlet.

[0011] Furthermore, the distance from the center line of the annular cavity gradually decreases from top to bottom;

[0012] The middle heat insulation layer is arranged horizontally, vertically or obliquely.

[0013] Furthermore, the communication structure includes a flow-conducting hole provided in the middle heat-insulating layer.

[0014] Furthermore, the lower disk is provided with a smoke exhaust port, and the smoke exhaust port is connected to the smoke waste heat collection chamber and the external environment.

[0015] Furthermore, the lower disk is provided with a secondary air inlet, and the secondary air inlet connects the secondary air preheating chamber with the external environment.

[0016] Furthermore, the high-temperature flue gas inlet, the secondary air outlet, the flue gas outlet and the secondary air inlet are in the shape of a long slot, a circular hole, a polygonal hole or an elliptical hole;

[0017] And / or, the high-temperature flue gas inlet, the secondary air outlet, the flue gas outlet and the secondary air inlet are through holes or flanged holes;

[0018] And / or, the high-temperature flue gas inlet, the secondary air outlet, the flue gas exhaust port and the secondary air inlet are configured as louver structures.

[0019] Furthermore, the upper disk, the lower disk and the middle heat insulation layer are formed by a combination of one or more of welding, riveting, pressing and curling.

[0020] Furthermore, a plurality of upper legs are provided on the inner side of the upper plate;

[0021] The bottom surface of the lower tray is provided with a plurality of lower supporting feet.

[0022] Beneficial effects:

[0023] The energy-gathering pot rack provided by the present invention is arranged around the burner when used in a specific situation. Since the upper disk and the lower disk of the energy-gathering pot rack form an annular cavity, the upper disk is provided with a high-temperature flue gas inlet and a secondary air outlet. Both the high-temperature flue gas inlet and the secondary air outlet are communicated with the cavity. According to the rising characteristic of high-temperature flue gas, the high-temperature flue gas generated by the burner can flow into the cavity through the high-temperature flue gas inlet located above the secondary air outlet, and flow out through the cavity and the secondary air outlet to achieve the replenishment of secondary air.

[0024] It can be seen that the energy-gathering boiler rack utilizes the waste heat of high-temperature flue gas as the secondary air to be replenished. Since the temperature of the secondary air is relatively high, compared with the prior art in which the outside air is directly used as the secondary air to be replenished, the temperature of the secondary air can be relatively increased, and the heat loss can be reduced. The high-temperature secondary air directly participates in the combustion, which can improve the thermal efficiency.

[0025] In a second aspect, the present invention provides a gas stove comprising: a burner and an energy-gathering pot stand as described in any one of the aforementioned embodiments;

[0026] The energy-gathering pot support is sleeved on the burner;

[0027] The secondary air outlet is in communication with the burner.

[0028] Beneficial effects:

[0029] The gas stove provided by the present invention includes the aforementioned energy-gathering pot rack. Therefore, the technical advantages and effects achieved by the gas stove also include the technical advantages and effects achieved by the energy-gathering pot rack, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of the installation structure of the energy-gathering pot support and the burner provided in an embodiment of the present invention;

[0032] Figure 2 for Figure 1 A longitudinal cross-sectional view of the energy-gathering pot support and the burner is shown;

[0033] Figure 3 for Figure 1 A longitudinal cross-sectional view of the energy-gathering pot support and burner is shown.

[0034] icon:

[0035] 100-upper plate; 110-high-temperature flue gas inlet; 120-secondary air outlet;

[0036] 200-lower tray; 210-smoke exhaust port; 220-secondary air inlet;

[0037] 310-Flue gas waste heat collection chamber; 320-Secondary air preheating chamber;

[0038] 400-middle insulation layer; 410-diversion hole;

[0039] 500-upper legs;

[0040] 600-lower support leg;

[0041] 700-burner. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] 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 invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0045] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] In addition, terms such as "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", not that the structure must be completely horizontal, but can be slightly tilted.

[0047] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0048] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0049] Reference Figures 1 to 3 This embodiment provides an energy-gathering pot rack, which includes an upper plate 100 and a lower plate 200. The upper plate 100 and the lower plate 200 form an annular cavity. The upper plate 100 is provided with a high-temperature flue gas inlet 110 and a secondary air outlet 120. The high-temperature flue gas inlet 110 and the secondary air outlet 120 are both in communication with the cavity, and the high-temperature flue gas inlet 110 is located above the secondary air outlet 120.

[0050] The energy-gathering pot rack provided in this embodiment is arranged around the burner 700 when used. Since the upper plate 100 and the lower plate 200 of the energy-gathering pot rack form an annular cavity, the upper plate 100 is provided with a high-temperature flue gas inlet 110 and a secondary air outlet 120. Both the high-temperature flue gas inlet 110 and the secondary air outlet 120 are connected to the cavity. According to the rising characteristic of high-temperature flue gas, the high-temperature flue gas generated by the burner 700 can flow into the cavity through the high-temperature flue gas inlet 110 located above the secondary air outlet 120, and flow out through the cavity and the secondary air outlet 120 to achieve the replenishment of secondary air.

[0051] It can be seen that the energy-gathering boiler rack of this embodiment utilizes the waste heat of high-temperature flue gas as the secondary air to be replenished. Since the temperature of the secondary air is relatively high, compared with the prior art in which the outside air is directly used as the secondary air to be replenished, the temperature of the secondary air can be relatively increased, and the heat loss can be reduced. The high-temperature secondary air directly participates in the combustion, which can improve the thermal efficiency.

[0052] Simply put, the upper plate 100 and the lower plate 200 of the energy-gathering pot rack form a two-layer single-cavity structure. This arrangement allows the entire space in the cavity to be used as a preheating space for secondary air, extending the flow time of high-temperature flue gas in the cavity and making the preheating more sufficient and uniform.

[0053] Furthermore, a middle heat insulating layer 400 may be provided in the cavity to configure the energy-gathering pot rack into a three-layer double-cavity structure. The three-layer double-cavity structure will be described in detail below.

[0054] Specifically, refer to Figure 2 or Figure 3An intermediate thermal insulation layer 400 is provided in the cavity, which divides the cavity into a flue gas waste heat collection chamber 310 and a secondary air preheating chamber 320; a connecting structure is provided between the flue gas waste heat collection chamber 310 and the secondary air preheating chamber 320, so that high-temperature flue gas can flow from the flue gas waste heat collection chamber 310 into the secondary air preheating chamber 320; wherein, the flue gas waste heat collection chamber 310 is communicated with the high-temperature flue gas inlet 110, and the secondary air preheating chamber 320 is communicated with the secondary air outlet 120.

[0055] In specific use, the high-temperature flue gas generated by the burner 700 flows into the flue gas waste heat collection chamber 310 through the high-temperature flue gas inlet 110, on the one hand, it can preheat the secondary air preheating chamber 320, and on the other hand, since there is a connecting structure between the flue gas waste heat collection chamber 310 and the secondary air preheating chamber 320, the high-temperature flue gas can flow into the secondary air preheating chamber 320 through the connecting structure and flow to the burner 700 through the secondary air outlet 120. Figure 3 The distance between the annular cavity and the center line gradually decreases from top to bottom; the middle thermal insulation layer 400 is arranged horizontally, vertically or inclined.

[0056] in, Figure 3 The middle heat insulation layer 400 is arranged horizontally, and the flue gas waste heat collection chamber 310 and the secondary air preheating chamber 320 are arranged one above and one below.

[0057] It should be noted that the structural form of the vertical or inclined arrangement of the middle insulation layer 400 can refer to the horizontal arrangement. By changing the arrangement form of the middle insulation layer 400, under the premise that the structures of the upper disk 100 and the lower disk 200 are certain, the specific position and volume of the flue gas waste heat collection chamber 310 and the secondary air preheating chamber 320 can be relatively changed.

[0058] The communication structure in this embodiment includes guide holes 410 provided in the middle heat-insulating layer 400 , wherein the shape, size, number and position of the guide holes 410 are not limited.

[0059] In other embodiments, a gap may be left between the middle insulation layer 400 and the upper disk 100; or, a gap may be left between the middle insulation layer 400 and the lower disk 200; or, gaps may be left between the middle insulation layer 400 and the upper disk 100 and the lower disk 200 respectively. By setting the gap, the flue gas waste heat collection chamber 310 and the secondary air preheating chamber 320 are connected.

[0060] Further, refer to Figure 3The lower disk 200 is provided with a smoke exhaust port 210, which connects the smoke waste heat collection chamber 310 with the external environment. Excess smoke can be discharged into the external environment through the smoke exhaust port 210 to ensure that high-temperature smoke can smoothly flow into the smoke waste heat collection chamber 310.

[0061] During actual use, the high-temperature flue gas generated by the burner flows upward, part of it flows into the atmosphere, and part of the high-temperature flue gas flows into the secondary air preheating chamber 320 through the guide hole 410 of the middle insulation layer 400 for use as secondary air, thereby extending the flow time in the high-temperature flue gas waste heat collection chamber 310. The heat is preheated through heat exchange to preheat the secondary air in the secondary air preheating chamber 320, realizing heat exchange between the high-temperature flue gas and the secondary air. The preheated air flows out through the secondary air outlet 120 and is burned at the burner 700, thereby improving the thermal efficiency of the gas stove.

[0062] For further information, please refer to Figure 3 The lower disk 200 is provided with a secondary air inlet 220 , and the secondary air inlet 220 connects the secondary air preheating chamber 320 with the external environment.

[0063] The combustion of the burner 700 will cause disturbances in the surrounding air. The cold air in the lower layer flows into the secondary air preheating chamber 320 through the secondary air inlet 220 and is preheated, and then flows out through the secondary air outlet 120 to participate in the combustion.

[0064] In this embodiment, the high-temperature flue gas inlet 110 , the secondary air outlet 120 , the flue gas outlet 210 and the secondary air inlet 220 are shaped as long slots, circular holes, polygonal holes or elliptical holes.

[0065] The high-temperature flue gas inlet 110, the secondary air outlet 120, the flue gas exhaust port 210 and the secondary air inlet 220 are through holes or flanged holes, wherein the flanged hole can be set to form a flange on the edge of the hole, or a part of the edge of the hole forms a flange. The selection of the position of the flange can play a certain guiding role in the flow direction of the gas, so that it flows in a direction within a preset range.

[0066] The high-temperature flue gas inlet 110, the secondary air outlet 120, the flue gas outlet 210 and the secondary air inlet 220 are set as a louver structure. The louver structure can guide the flow direction of the gas to a certain extent, so that it flows in a preset range.

[0067] Optionally, the upper disk 100 , the lower disk 200 and the middle thermal insulation layer 400 are formed by a combination of one or more of welding, riveting, pressing and curling.

[0068] Exemplarily, the middle insulation layer 400 is welded in the cavity; the upper and lower ends of the upper disk 100 and the lower disk 200 are both riveted, or the upper ends of the upper disk 100 and the lower disk 200 are pressed or rolled, and the lower ends of the upper disk 100 and the lower disk 200 are riveted, or the upper ends of the upper disk 100 and the lower disk 200 are riveted, and the lower ends of the upper disk 100 and the lower disk 200 are pressed or rolled.

[0069] Reference Figure 1 、 Figure 2 or Figure 3 A plurality of upper supporting feet 500 are provided on the inner side of the upper tray 100 ; a plurality of lower supporting feet 600 are provided on the bottom surface of the lower tray 200 .

[0070] Exemplarily, the plurality of upper supporting legs 500 and the plurality of lower supporting legs 600 are each provided in four and are evenly spaced apart. The specific structure of the supporting legs is not limited, for example, the supporting legs may be a sheet-like structure.

[0071] This embodiment also provides a gas stove, comprising a burner 700 and the aforementioned energy-concentrating pot holder. The energy-concentrating pot holder is mounted over the burner 700. A secondary air outlet 120 communicates with the burner 700 to allow preheated secondary air to participate in combustion. The gas stove provided in this embodiment includes the aforementioned energy-concentrating pot holder. Therefore, the technical advantages and effects achieved by this gas stove also include those achieved by the energy-concentrating pot holder, which will not be further elaborated here.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-gathering pot rack, characterized in that: include: An upper disk (100) and a lower disk (200), wherein the upper disk (100) and the lower disk (200) form an annular cavity; The upper disk (100) is provided with a high-temperature flue gas inlet (110) and a secondary air outlet (120), the high-temperature flue gas inlet (110) and the secondary air outlet (120) are both in communication with the cavity, and the high-temperature flue gas inlet (110) is located above the secondary air outlet (120); A middle heat-insulating layer (400) is provided in the cavity, and the middle heat-insulating layer (400) divides the cavity into a flue gas waste heat collection cavity (310) and a secondary air preheating cavity (320); A communication structure is provided between the flue gas waste heat collection chamber (310) and the secondary air preheating chamber (320); The flue gas waste heat collection chamber (310) is in communication with the high-temperature flue gas inlet (110), and the secondary air preheating chamber (320) is in communication with the secondary air outlet (120); The middle thermal insulation layer (400) is arranged horizontally, vertically or obliquely; The upper disk (100), the lower disk (200) and the middle heat insulation layer (400) are formed by welding, riveting, pressing and curling, or a combination of one or more of the following:

2. The energy-gathering pot support according to claim 1, characterized in that: The distance between the annular cavity and the center line gradually decreases from top to bottom.

3. The energy-gathering pot support according to claim 1, characterized in that: The communication structure comprises a flow guide hole (410) provided in the middle heat insulation layer (400).

4. The energy-gathering pot support according to claim 1, characterized in that: The lower disk (200) is provided with a smoke exhaust port (210), and the smoke exhaust port (210) is connected to the smoke waste heat collection chamber (310) and the external environment.

5. The energy-gathering pot support according to claim 4, characterized in that: The lower disk (200) is provided with a secondary air inlet (220), and the secondary air inlet (220) is connected to the secondary air preheating chamber (320) and the external environment.

6. The energy-gathering pot support according to claim 5, characterized in that: The high-temperature flue gas inlet (110), the secondary air outlet (120), the flue gas outlet (210), and the secondary air inlet (220) are shaped as long slots, circular holes, polygonal holes, or elliptical holes; and / or, the high-temperature flue gas inlet (110), the secondary air outlet (120), the flue gas outlet (210), and the secondary air inlet (220) are through holes or flanged holes; And / or, the high-temperature flue gas inlet (110), the secondary air outlet (120), the flue gas outlet (210), and the secondary air inlet (220) are configured as a louver structure.

7. The energy-gathering pot support according to any one of claims 1 to 6, characterized in that: A plurality of upper supporting legs (500) are provided on the inner side of the upper plate (100); The bottom surface of the lower tray (200) is provided with a plurality of lower supporting legs (600).

8. A gas stove, characterized in that: include: A burner (700) and an energy-gathering pot support according to any one of claims 1 to 7; The energy-gathering pot rack is sleeved on the burner (700); The secondary air outlet (120) is in communication with the burner (700).

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