Pot rack and stove

Abstract

The invention discloses a pot rack and a stove. The pot rack provided by the embodiment of the invention is integrally arranged in an annular shape and encloses to form a combustion cavity, the combustion cavity is used for allowing flame of a combustor to pass through, the pot rack is provided with a smoke gathering cavity, the smoke gathering cavity is opened towards the inner side of the pot rack so as to communicate with the combustion cavity, and the smoke gathering cavity is opened towards the upper side of the pot rack so as to form a smoke outlet. A gas blocking structure is arranged on the outer side, away from the combustion cavity, of the pot frame, shields part of the smoke outlet and is provided with a flow guide groove communicated with the smoke gathering cavity so that part of smoke can flow out of the smoke gathering cavity through the flow guide groove. According to the technical scheme, the heat efficiency of the stove can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of stoves, and in particular to a pot rack and a stove. Background Art

[0002] Cooker is an important equipment used for cooking in the kitchen.

[0003] In the related art, the energy-gathering pan support can improve the combustion efficiency of the stove, but because the high-temperature smoke generated by the stove during operation is not effectively utilized, the energy-gathering pan support has limited effect on improving the combustion efficiency of the stove. Summary of the invention

[0004] The embodiments of the present application provide a pot rack and a stove, which can improve the thermal efficiency of the stove.

[0005] In a first aspect, an embodiment of the present application provides a pot rack, wherein the pot rack is arranged in an annular shape as a whole and encloses a combustion chamber, wherein the combustion chamber is used for the flame of a burner to pass through, and the pot rack has a smoke collecting chamber, wherein the smoke collecting chamber is opened toward the inner side of the pot rack to communicate with the combustion chamber, and the smoke collecting chamber is opened toward the upper side of the pot rack to form a smoke outlet;

[0006] An air blocking structure is provided on the outside of the pot support away from the combustion chamber, the air blocking structure blocks part of the smoke outlet, and is provided with a guide groove connected to the smoke collecting chamber, so that part of the smoke flows out of the smoke collecting chamber through the guide groove.

[0007] In one embodiment, the orientation of the notch of the guide groove is arranged at an angle to the upper surface of the air blocking structure; and / or,

[0008] The guide groove is extended continuously or intermittently along the circumference of the pot support.

[0009] In one embodiment, the pot rack includes a pot rack body, the pot rack body forms the smoke collecting chamber on a side facing the combustion chamber, the air baffle structure includes an air baffle plate, the air baffle plate is connected to the pot rack body away from the outer side of the combustion chamber and is provided with the guide groove.

[0010] In one embodiment, the pot support comprises a pot support body, the pot support body forms the smoke collecting cavity on a side facing the combustion cavity, and the air blocking structure comprises:

[0011] A baffle, connected to the outer edge of the pot support body away from the combustion chamber and extending upward; and

[0012] An air baffle is connected to the pot support body and is located on a side of the enclosure close to the combustion chamber and is spaced apart from the enclosure along the radial direction of the combustion chamber. The guide groove is constructed between the air baffle and the enclosure.

[0013] In one embodiment, the air baffle structure is provided with a plurality of the guide grooves, and the air baffle plate is provided with at least one of the guide grooves.

[0014] In one embodiment, the pot support further comprises:

[0015] A plurality of pot legs are arranged at intervals along the circumference of the pot rack body, and the air baffle plate connects the plurality of pot legs.

[0016] In one embodiment, the air baffle plate includes a plurality of air baffle strips spaced apart along the radial direction of the combustion chamber, and a guide groove is defined between two adjacent air baffle strips;

[0017] Wherein, along the radial direction of the combustion chamber, a plurality of the air baffle strips are arranged in staggered heights.

[0018] In one embodiment, the height of the upper surface of the air retaining strip gradually increases in a radial direction away from the combustion chamber; and / or,

[0019] The height of the air baffle is lower than the height of the enclosure.

[0020] In one embodiment, the orientation of the notch of the guide groove is perpendicular to the upper surface of the air blocking structure.

[0021] In one embodiment, it further includes:

[0022] The spoiler structure is arranged on the upper surface or the lower surface of the air blocking structure, and the spoiler structure constructs a vortex channel, and the vortex channel is configured to guide the smoke flowing through the air blocking structure to form a vortex.

[0023] In one embodiment, it further includes:

[0024] The heat exchange structure is connected to the air blocking structure and is configured so that the upper surface and / or the lower surface of the air blocking structure is uneven so as to be used for heat exchange with the flue gas.

[0025] In one embodiment, the heat exchange structure includes at least one of the following:

[0026] a) a fin heat exchanger, comprising a plurality of heat exchange fins, wherein the plurality of heat exchange fins are arranged at intervals along the circumference of the pot rack;

[0027] b) a perforated heat exchanger, defining a plurality of heat exchange channels spaced apart along the circumference of the pot support;

[0028] c) a protrusion heat exchanger, comprising a plurality of protrusions, wherein the plurality of protrusions are arranged at intervals along the circumference of the pot support;

[0029] d) a corrugated structure, wherein the corrugated structure is a radial corrugated structure extending in a radial direction of the pot support, or the corrugated structure is a circumferential corrugated structure extending in a circumferential direction of the pot support.

[0030] In a second aspect, the present application also provides a stove, comprising:

[0031] A pot stand as described in any one of the above; and

[0032] A burner, at least a portion of which is disposed in the combustion chamber.

[0033] Based on the above embodiment, the air blocking structure is arranged on the flow path of the smoke flowing out through the smoke outlet, so that part of the smoke is blocked by the air blocking structure in the process of flowing out through the smoke outlet, forming a blocking effect on the smoke, while part of the smoke can flow out through the guide groove arranged in the air blocking structure. In this way, the technical solution of the present application prolongs the path length of the smoke escape, thereby prolonging the time for the smoke to exchange heat with the cookware at the bottom of the cookware, making full use of the high-temperature smoke to heat the cookware, realizing the effective utilization of the residual heat of the smoke, improving the heat utilization rate, and thus improving the energy efficiency of the cooker.

[0034] In addition, the efficient use of flue gas waste heat is conducive to maintaining the temperature of the combustion chamber, which can make the combustion more complete, thereby improving the combustion efficiency and further improving the overall energy efficiency of the stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0036] Figure 1 This is a schematic structural diagram of an embodiment of a pot stand and a pot of the present application;

[0037] Figure 2 This is a structural schematic diagram of an embodiment of a pot rack of the present application;

[0038] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the middle pot rack and the pot;

[0039] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0040] Description of Figure Numbers:

[0041] 100. Pot stand; 10. Pot stand body; 11. Combustion chamber; 13. Smoke collecting chamber; 15. Smoke outlet; 30. Pot legs; 50. Air baffle structure; 51. Enclosure; 53. Air baffle plate; 531. Air baffle strip; 55. Guide groove; 200. Pot.

[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0044] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0045] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0047] In one aspect, an embodiment of the present application provides a stove, which includes a pot rack and a burner.

[0048] The burner is usually arranged on a stove and used to heat the cookware. Specifically, the burner is provided with a fire hole, and a mixed gas containing fuel gas and primary air is ejected from the fire hole of the burner and ignited by an ignition device, and flames are formed with the help of secondary air, and these flames can be used to heat the cookware. Optionally, the burner may include an outer ring fire cover and an inner ring fire cover, the outer ring fire cover is formed with an outer fire hole, and the inner ring fire cover is formed with an inner fire hole, and both the outer fire hole and the inner fire hole can eject flames.

[0049] The pot rack is used to be placed on the stove and to support the pot. The pot rack surrounds the outside of the burner and forms a combustion chamber. The flame generated by the burner during operation can pass through the combustion chamber to contact the bottom of the pot to heat the pot. With the pot rack set up, the heat of the burner is concentrated and transferred to the direction of the pot, preventing heat from leaking out, so that the heat of the burner can fully act on the pot.

[0050] The high-temperature flue gas generated by the flame combustion is discharged through the gap between the pot rack and the cooker. In the related art, since the high-temperature flue gas is not effectively utilized, the exhaust temperature of the flue gas after leaving the cooker is still high, and the residual heat of the flue gas cannot be fully utilized, resulting in the pot rack having a limited effect on improving the combustion efficiency of the stove.

[0051] To improve the thermal efficiency of the cooker, please refer to Figure 1 and Figure 2 Another aspect of the embodiment of the present application provides a pot rack 100 .

[0052] In some embodiments, the pot stand 100 is arranged in a ring shape as a whole and encloses a combustion chamber 11, and the combustion chamber 11 is used for the flame of the burner to pass through. The pot stand 100 also has a smoke collecting chamber 13, which is arranged around the combustion chamber 11 and is open to the inner side of the pot stand 100 to connect with the combustion chamber 11, and the smoke collecting chamber 13 is open to the upper side of the pot stand 100 to form a smoke outlet 15. In this way, the pot stand 100 can separate the high-temperature flame from the external environment, reduce the impact of the external low-temperature airflow on the flame and reduce the loss of combustion heat, and at the same time can gather the smoke so that the smoke flows out from the smoke outlet 15. It can be seen that the smoke outlet 15 is also arranged around the combustion chamber 11, so that the smoke generated by the flame combustion can be discharged smoothly.

[0053] In the embodiment of the present application, an air-blocking structure 50 is further provided on the outer side of the pot stand 100 away from the combustion chamber 11. The air-blocking structure 50 blocks part of the smoke outlet 15 and is provided with a guide groove 55 connected to the smoke-collecting chamber 13, so that part of the smoke flows out of the smoke-collecting chamber 13 through the guide groove 55. In other words, the air-blocking structure 50 is arranged on the flow path of the smoke flowing out through the smoke outlet 15, so that part of the smoke is blocked by the air-blocking structure 50 in the process of flowing out through the smoke outlet 15, forming a blocking effect on the smoke, and part of the smoke can flow out through the guide groove 55 arranged on the air-blocking structure 50. In this way, the technical solution of the present application prolongs the path length of the smoke escape, thereby prolonging the time for the smoke to exchange heat with the cookware 200 at the bottom of the cookware 200, making full use of the high-temperature smoke to heat the cookware 200, realizing the effective utilization of the residual heat of the smoke, improving the heat utilization rate, and thus improving the energy efficiency of the cooker.

[0054] In addition, efficient use of flue gas waste heat is conducive to maintaining the temperature of the combustion chamber 11, which can make the combustion more complete, increase the chemical reaction rate, promote reaction heat release, thereby improving the combustion efficiency and further improving the overall energy efficiency of the stove.

[0055] Please refer to Figures 2 to 4 In some embodiments, the pot rack 100 includes a pot rack body 10, pot legs 30, and the above-mentioned air blocking structure 50. The pot legs 30 are connected to the pot rack body 10, and the air blocking structure 50 is connected to at least one of the pot rack body 10 and the pot legs 30.

[0056] The pot support body 10 is used to separate the high-temperature flame from the external environment, allowing the hot gas to stay at the bottom of the pot 200 for a longer time, thereby improving the combustion efficiency. The pot support body 10 is arranged in an annular shape, for example, it can be arranged in a circular ring shape, an elliptical ring shape or a square ring shape, so as to construct a combustion chamber 11 that runs through the middle of the pot support body 10 from top to bottom, and to construct a smoke collecting chamber 13 surrounding the combustion chamber 11 on the side of the pot support body 10 facing the combustion chamber 11. A smoke outlet 15 is defined between the upper side of the pot support body 10 and the combustion chamber 11, and the smoke collecting chamber 13 is inclined toward the wall of the combustion chamber 11 to guide the smoke to flow outward and flow toward the smoke outlet 15. Optionally, the pot support body 10 can be made of cast iron, enamel or galvanized materials with advantages such as high temperature resistance and good strength.

[0057] The pot support leg 30 is arranged on the top of the pot rack body 10 to support the bottom of the pot 200. Optionally, the pot support leg 30 may be in the shape of an elongated strip to increase the contact area between the pot support leg 30 and the bottom of the pot 200. The number of pot support legs 30 may be multiple, and multiple pot support legs 30 may be arranged on the top of the pot rack body 10 at intervals along the circumference of the pot rack body 10 to enhance the stability of the support for the pot 200, prevent the pot 200 from sliding or tipping over during heating, and reduce the occurrence of accidental injuries. The pot support leg 30 may be made of a material with high temperature resistance such as cast iron, which is not limited in the embodiment of the present application.

[0058] Optionally, the connection between the pot support leg 30 and the pot rack body 10 can be welding or integrally formed. The connection between the pot support leg 30 and the pot rack body 10 is not specifically limited.

[0059] Combination Figure 4 In one embodiment, the air-blocking structure 50 includes a baffle 51 and an air-blocking plate 53. The baffle 51 is connected to the outer edge of the pot frame body 10 away from the combustion chamber 11 and extends upward. The air-blocking plate 53 is connected to the pot frame body 10 and is located on the side of the baffle 51 close to the combustion chamber 11 and is spaced apart from the baffle 51 along the radial direction of the combustion chamber 11. A guide groove 55 is constructed between the air-blocking plate 53 and the baffle 51. It can be understood that the baffle 51 can effectively separate the external airflow and the combustion environment, reduce or avoid the interference of the external airflow on the flame, and improve the flame stability, so that the bottom of the pot 200 is heated evenly and the windproof performance of the stove is improved. The air baffle 53 blocks part of the smoke outlet 15, and can block the smoke on the flow path of the smoke, so that the smoke bypasses the air baffle 53 or flows out through the guide groove 55, thereby extending the length of the smoke escape path, extending the heat exchange time between the smoke and the bottom of the cookware 200, achieving effective utilization of the waste heat of the smoke, and improving the heat utilization rate.

[0060] In some embodiments, the air-blocking structure 50 is provided with a plurality of guide grooves 55 arranged along the radial direction of the combustion chamber 11. In addition to the guide grooves 55 defined between the enclosure 51 and the air-blocking plate 53, at least one guide groove 55 may also be provided on the air-blocking plate 53. In this way, a portion of the smoke can be discharged through the plurality of guide grooves 55, thereby preventing smoke from being blocked and affecting the combustion condition.

[0061] In the embodiment of the present application, the air baffle 53 is arranged in an annular shape, and the guide groove 55 extends along the circumference of the pot rack 100, thereby improving the waste heat utilization efficiency of the smoke at various locations around the pot rack 100, and making the distribution of the smoke around the pot rack 100 more uniform, thereby improving the heating uniformity of the bottom of the pot 200.

[0062] Optionally, the air baffle plate 53 may be connected to the pot support leg 30, and the guide groove 55 on the air baffle plate 53 is partially blocked by the pot support leg 30 and extends intermittently. Of course, for some embodiments in which the pot support leg 30 does not block the guide groove 55, the guide groove 55 may also extend continuously along the circumference of the pot rack 100, which is not limited in the embodiment of the present application.

[0063] Of course, it is understandable that in some other embodiments not shown in the present application, the air baffle structure 50 may also only include an air baffle plate 53, which is arranged on the outside of the pot rack body 10 away from the combustion chamber 11 and connected to the pot rack body 10 or the pot support leg 30. The air baffle plate 53 is provided with a guide groove 55, which can also extend the length of the smoke escape path, extend the heat exchange time between the smoke and the bottom of the pot 200, and improve the heat utilization rate.

[0064] In some embodiments, the direction of the notch of the guide groove 55 is set at an angle to the upper surface of the air baffle structure 50. It can be understood that during combustion, part of the smoke flows out from the notch of the guide groove 55, and part of the smoke flows out of the pot rack 100 from the inner side of the air baffle plate 53 through the air baffle plate 53 and the upper surface of the enclosure 51. In this embodiment, the flow direction of the smoke flowing out of the notch of the guide groove 55 is set at an angle to the flow direction of the smoke flowing through the upper surface of the air baffle plate 53 and the enclosure 51, and the two parts of the smoke meet to form a disturbance, thereby extending the retention time of the smoke at the bottom of the pot 200 and further improving the utilization rate of the waste heat of the smoke.

[0065] Exemplarily, the notch of the guide groove 55 is oriented perpendicular to the upper surface of the air-blocking structure 50. In this way, the smoke flowing out of the notch of the guide groove 55 can block the smoke flowing through the upper surface of the air-blocking plate 53 and the enclosure 51, which, on the one hand, increases the vertical contact area between the smoke and the bottom of the cookware 200, improves the convection heat exchange between the smoke and the cookware 200, and realizes efficient utilization of the waste heat of the high-temperature smoke; on the other hand, this is more conducive to preserving the temperature of the combustion chamber 11, which is conducive to improving the combustion efficiency, thereby improving the overall energy efficiency of the cooker.

[0066] Of course, the orientation of the notch of the guide groove 55 and the upper surface of the air blocking structure 50 may also be set at an angle of 60°, 80°, etc., which is not limited in the embodiment of the present application.

[0067] Please continue to refer to Figure 2 and Figure 4In a specific embodiment, the air baffle plate 53 includes a plurality of air baffle strips 531 arranged at intervals along the radial direction of the combustion chamber 11, both ends of the plurality of air baffle strips 531 can be connected to two pot legs 30, and a guide groove 55 is defined between two adjacent air baffle strips 531. For example, the air baffle plate 53 includes three air baffle strips 531, the three air baffle strips 531 are arranged at intervals along the radial direction of the combustion chamber 11, and define two guide grooves 55 arranged at intervals along the radial direction of the combustion chamber 11. Of course, the air baffle plate 53 can also be provided with other numbers of air baffle strips 531, and the embodiment of the present application is not limited to this.

[0068] In one structural form, multiple air retaining strips 531 are arranged in a staggered manner along the radial direction of the combustion chamber 11. For example, the height of the upper surface of the air retaining strip 531 gradually increases in the direction away from the combustion chamber 11 along the radial direction of the combustion chamber 11, so that a sunken smoke retention cavity is formed on the air retaining plate 53. When the pot 200 is placed on the pot rack 100, the gap between the pot 200 and the top of the air retaining structure 50 is connected to the smoke retention cavity. The smoke generated by the combustion can flow out from the smoke retention cavity through the gap. In this process, the smoke retention cavity is used to block the smoke above the air retaining plate 53. When the smoke escapes, due to the height difference between the multiple air retaining strips 531 of the air retaining plate 53, the smoke swirls in the process of flowing through the air retaining plate 53, thereby increasing the retention time of the smoke and prolonging the heat exchange time between the smoke and the bottom of the pot 200. At the same time, the inner wall surface of the smoke retention cavity (the inner part of the air baffle strip 531) can also reflect heat to the combustion cavity 11 or the bottom of the cookware 200, thereby further improving the heating efficiency and improving the heat utilization rate.

[0069] Furthermore, the height of the air baffle 53 is lower than the height of the enclosure 51, which can further increase the range of smoke retention, further allowing the smoke to fully exchange heat with the bottom of the cookware 200, thereby improving heat utilization.

[0070] Of course, in some other embodiments, along the radial direction of the combustion chamber 11, multiple air baffle strips 531 may also be arranged alternately high and low to achieve disturbance of the flue gas flowing through, which will not be elaborated in the embodiments of the present application.

[0071] To further improve energy efficiency, in one embodiment, the pot stand 100 further includes a spoiler structure, which is arranged on the upper surface or the lower surface of the air blocking structure 50. The spoiler structure constructs a vortex channel, and the vortex channel is configured to guide the smoke flowing through the air blocking structure 50 to form a vortex. In this way, the contact area between the air blocking structure 50 and the smoke is increased, and the smoke forms a vortex when passing through the vortex channel of the spoiler structure, disturbing the flow direction of the smoke, prolonging the retention time of the smoke at the bottom of the pot 200, and achieving a better heat exchange effect and more heat recovery.

[0072] Of course, spoiler structures may also be provided on both the upper and lower surfaces of the air blocking structure 50 , so that the contact area between the air blocking structure 50 and the smoke can be further increased to further improve the heating efficiency.

[0073] Exemplarily, the spoiler structure includes a plurality of first spoiler members and a plurality of second spoiler members, and the plurality of first spoiler members and the plurality of second spoiler members are alternately arranged along the circumference of the pot rack body 10, and a vortex channel is formed between a first spoiler member and a second spoiler member. It is understandable that the first spoiler member and the second spoiler member can be the same or different. In this embodiment, the cost of the opening process can be saved by designing the position or shape of the first spoiler member and the second spoiler member to form a vortex channel of a specific shape, and it is convenient to clean the vortex channel and reduce the blockage.

[0074] For example, the first spoiler and the second spoiler are in the form of flat sheets, which is convenient for production. The extension direction of the first spoiler and the extension direction of the second spoiler after installation are set at an angle to the radial direction of the combustion chamber 11. In this way, when the smoke passes through the first spoiler or the second spoiler, it will flow along the first spoiler and the second spoiler, avoiding the smoke from being directly discharged along the radial direction of the combustion chamber 11, thereby achieving the effect of extending the retention time of the smoke at the bottom of the pot rack 100. Specifically, two adjacent first spoilers and second spoilers can be arranged in an "eight" shape.

[0075] In one embodiment, the pot support 100 may further include a heat exchange structure, which is connected to the air blocking structure 50 and is configured so that the upper surface and / or the lower surface of the air blocking structure 50 is uneven for heat exchange with the flue gas. It is understandable that due to the uneven surface of the air blocking structure 50, the air blocking structure 50 in this embodiment has a larger heat exchange area relative to a regular surface, so that it can more fully exchange heat with the flue gas, increase the temperature of the pot support 100, and help maintain the temperature of the combustion chamber 11, thereby improving the combustion efficiency.

[0076] Optionally, the heat exchange structure includes a fin heat exchanger. The fin heat exchanger includes a plurality of heat exchange fins, so that the flue gas exchanges heat with the heat exchange fins in the process of flowing through the air blocking structure 50. The shape of the heat exchange fins can be a straight line, an arc, a wave or a broken line, and the material of the heat exchange fins can be a metal material with good thermal conductivity such as copper and aluminum, which is not limited in this embodiment.

[0077] Or in another embodiment, the heat exchange structure includes a perforated heat exchanger. The perforated heat exchanger defines a plurality of heat exchange channels arranged at intervals along the circumference of the pot rack body 10, which can be arranged in an annular shape, for example, in a circular ring shape, an elliptical ring shape, or a square ring shape, and the material of the perforated heat exchanger can be a metal material with good thermal conductivity such as copper and aluminum, which is not limited in this embodiment.

[0078] Alternatively, in another embodiment of the present application, the heat exchange structure further includes a corrugated structure. It is understandable that the corrugated structure may fluctuate or bend due to its own characteristics, thereby increasing the contact area with the flue gas. For example, the corrugated structure may include crests, troughs, or both crests and troughs due to its own characteristics, wherein the crests may be in the shape of an arc. In some structural forms, the corrugated structure includes a circumferential corrugated structure, which may extend continuously along the circumference of the pot rack body 10. In other structural forms, the corrugated structure includes a radial corrugated structure, which extends continuously along the radial direction of the pot rack body 10.

[0079] In one embodiment, the heat exchange structure further includes a protrusion heat exchanger. The protrusion heat exchanger includes a plurality of protrusions, which are arranged at intervals, and the protrusions may include at least one of a convex hull, a convex point, a convex strip, and a convex column, or the protrusions may also be a combination of any two or more of the convex hull, a convex point, a convex strip, and a convex column, which is not limited in this embodiment.

[0080] The above is an explanation of the optional implementation of the pot rack 100 of the embodiment of the present application. Since the stove of the present application adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0081] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0082] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pot stand, characterized in that: The pot support is arranged in a ring shape as a whole and encloses a combustion chamber, the combustion chamber is used for the flame of the burner to pass through, the pot support has a smoke collecting chamber, the smoke collecting chamber is opened toward the inner side of the pot support to communicate with the combustion chamber, and the smoke collecting chamber is opened toward the upper side of the pot support to form a smoke outlet; An air blocking structure is provided on the outside of the pot support away from the combustion chamber, the air blocking structure blocks part of the smoke outlet, and is provided with a guide groove connected to the smoke collecting chamber, so that part of the smoke flows out of the smoke collecting chamber through the guide groove.

2. The pot support according to claim 1, characterized in that: The orientation of the notch of the guide groove is arranged at an angle to the upper surface of the air blocking structure; and / or, The guide groove is extended continuously or intermittently along the circumference of the pot support.

3. The pot support according to claim 1, characterized in that: The pot rack comprises a pot rack body, the pot rack body forms the smoke collecting chamber on a side facing the combustion chamber, the air baffle structure comprises an air baffle plate, the air baffle plate is connected to the outer side of the pot rack body away from the combustion chamber and is provided with the guide groove.

4. The pot support according to claim 1, characterized in that: The pot rack comprises a pot rack body, and the pot rack body forms the smoke collecting cavity on a side facing the combustion cavity, and the air blocking structure comprises: A baffle, connected to the outer edge of the pot support body away from the combustion chamber and extending upward; and An air baffle is connected to the pot support body and is located on a side of the enclosure close to the combustion chamber and is spaced apart from the enclosure along the radial direction of the combustion chamber. The guide groove is constructed between the air baffle and the enclosure.

5. The pot support according to claim 4, characterized in that: The air baffle structure is provided with a plurality of the guide grooves, and the air baffle plate is provided with at least one of the guide grooves.

6. The pot support according to claim 3 or 5, characterized in that: Also includes: A plurality of pot legs are arranged at intervals along the circumference of the pot rack body, and the air baffle plate connects the plurality of pot legs.

7. The pot support according to claim 5, characterized in that: The air baffle plate comprises a plurality of air baffle strips spaced apart along the radial direction of the combustion chamber, and a guide groove is defined between two adjacent air baffle strips; Wherein, along the radial direction of the combustion chamber, a plurality of the air baffle strips are arranged in staggered heights.

8. The pot support according to claim 7, characterized in that: The height of the upper surface of the air retaining strip gradually increases in a radial direction away from the combustion chamber; and / or, The height of the air baffle is lower than the height of the enclosure.

9. The pot support according to any one of claims 1-5, 7 and 8, characterized in that: The orientation of the notch of the guide groove is perpendicular to the upper surface of the air blocking structure.

10. The pot support according to any one of claims 1-5, 7 and 8, characterized in that: Also includes: The spoiler structure is arranged on the upper surface or the lower surface of the air blocking structure, and the spoiler structure constructs a vortex channel, and the vortex channel is configured to guide the smoke flowing through the air blocking structure to form a vortex.

11. The pot support according to any one of claims 1-5, 7 and 8, characterized in that: Also includes: The heat exchange structure is connected to the air blocking structure and is configured so that the upper surface and / or the lower surface of the air blocking structure is uneven so as to be used for heat exchange with the flue gas.

12. The pot support according to claim 11, characterized in that: The heat exchange structure includes at least one of the following: a) a fin heat exchanger, comprising a plurality of heat exchange fins, wherein the plurality of heat exchange fins are arranged at intervals along the circumference of the pot rack; b) a perforated heat exchanger, defining a plurality of heat exchange channels spaced apart along the circumference of the pot support; c) a protrusion heat exchanger, comprising a plurality of protrusions, wherein the plurality of protrusions are arranged at intervals along the circumference of the pot support; d) a corrugated structure, wherein the corrugated structure is a radial corrugated structure extending in a radial direction of the pot support, or the corrugated structure is a circumferential corrugated structure extending in a circumferential direction of the pot support.

13. A cooking appliance, characterized in that: include: A pot support as claimed in any one of claims 1 to 12; and A burner, at least a portion of which is disposed in the combustion chamber.

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