Stove and pot rack

Abstract

The pot rack comprises a pot rack main body and a bottom porous medium piece, the pot rack main body is annularly arranged and defines a combustion cavity allowing flame of a combustor to pass through, the bottom porous medium piece is arranged at the bottom of the pot rack main body, secondary air can flow through the bottom porous medium piece, and the secondary air can flow through the bottom porous medium piece; and the secondary air exchanges heat with the porous medium piece at the bottom and then enters the combustion cavity. According to the embodiment of the invention, the bottom porous medium piece is arranged at the bottom of the pot rack main body, so that the heat exchange area is increased, and the heating efficiency of the cooker on the pot is improved.

Description

Technical Field

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

[0002] Gas stoves are one of the essential kitchen cooking appliances in daily life. Gas stoves generally include a burner and a pot support located outside the burner. Secondary air enters the vicinity of the burner from the inside or bottom of the pot support to replenish the burner with secondary air, thereby burning the gas more fully.

[0003] In the related art, secondary air flows directly from the surface of the pot support to the vicinity of the burner. The temperature of the secondary air is close to that of the outside air. When the secondary air comes into contact with the flame, it will lower the flame temperature, which may not only produce more smoke but also reduce the overall combustion efficiency of the burner. Utility Model Content

[0004] The embodiments of the present application provide a stove and a pot rack, which are intended to increase the heat exchange area and improve the heating efficiency of the stove to the pot.

[0005] A first aspect of an embodiment of the present application provides a pot rack, which includes a pot rack body and a bottom porous medium member, wherein the pot rack body is arranged in a ring shape and encloses a combustion chamber for the flame of a burner to pass through, and the bottom porous medium member is arranged at the bottom of the pot rack body, and secondary air can flow through the bottom porous medium member and enter the combustion chamber after heat exchange with the bottom porous medium member.

[0006] Further, the bottom porous medium piece extends continuously along the circumference of the pot rack body and is arranged in a ring shape, or the bottom porous medium piece extends intermittently along the circumference of the pot rack body, and a support leg connected to the pot rack body is arranged at a distance between two adjacent bottom porous medium pieces.

[0007] Furthermore, the porosity of the bottom porous medium member is not less than 80%.

[0008] Furthermore, the bottom porous medium member includes one of foam metal, metal mesh, metal fiber and zeolite.

[0009] Furthermore, the connection method between the bottom porous medium member and the pot support body includes at least one of welding, riveting, screwing, clamping and interference fit.

[0010] Furthermore, a heat conducting member is provided at the bottom of the pot rack body, and the heat conducting member is penetrated in the bottom porous medium member, and / or the bottom porous medium member is attached to the bottom of the pot rack body.

[0011] Furthermore, the pot rack also includes a mounting piece, which is connected to the pot rack body, and has a mounting groove, and has an air inlet and an air outlet connected to the mounting groove, and the bottom porous medium member is installed in the mounting groove, wherein secondary air can enter the mounting groove through the air inlet to exchange heat with the bottom porous medium member, and enter the combustion chamber from the air outlet.

[0012] Further, the mounting member includes a connecting portion and a bearing portion, the connecting portion is connected to the bottom of the pot rack body and extends downward from the bottom of the pot rack body, the connecting portion has one of the air inlet or the air outlet, the bearing portion is connected to an end of the connecting portion away from the pot rack body and is arranged at an angle to the connecting portion, the bearing portion is spaced apart from the pot rack body so that the bearing portion, the connecting portion and the pot rack body jointly constitute the mounting groove, and the end of the bearing portion away from the connecting portion and the bottom of the pot rack body form the other of the air inlet or the air outlet.

[0013] Further, the bearing portion extends from the connecting portion in a direction away from the combustion chamber, and one end of the bearing portion away from the connecting portion forms the annular air inlet with the bottom of the pot support body, or the bearing portion extends from the connecting portion in a direction close to the combustion chamber, and one end of the bearing portion away from the connecting portion forms the annular air outlet with the bottom of the pot support body.

[0014] Furthermore, the mounting member is arranged in a ring shape, or a plurality of the mounting members are arranged at intervals along the circumference of the pot rack body.

[0015] Further, the pot support also includes a plurality of mounting members, and the plurality of mounting members are arranged at intervals along the circumference of the pot support body, and the mounting members include a connecting portion and a bearing portion, the connecting portion is connected to the bottom of the pot support body and extends downward from the bottom of the pot support body, and the plurality of connecting portions are alternately located on the outside and inside of the annular bottom porous medium member, the bearing portion is connected to an end of the connecting portion away from the pot support body and is arranged at an angle to the connecting portion, and of two adjacent bearing portions, the bearing portion connected to the connecting portion located on the inner side of the bottom porous medium member extends from the connecting portion in a direction away from the combustion chamber to carry the bottom porous medium member, and the bearing portion connected to the connecting portion located on the outer side of the bottom porous medium member extends from the connecting portion in a direction close to the combustion chamber to carry the bottom porous medium member.

[0016] Furthermore, the pot rack also includes a supporting leg, which is arranged at the bottom of the pot rack body, and the supporting leg has an avoidance groove, and the annular bottom porous medium member is partially arranged in the avoidance groove.

[0017] Further, the thickness of the bottom porous medium member in the axial direction of the pot support body is smaller than the width of the bottom porous medium member in the radial direction of the pot support body.

[0018] Furthermore, the pot support body also includes an inner side surface arranged toward the combustion chamber and an outer side surface away from the combustion chamber, wherein the bottom porous medium member also extends to the inner side surface, and / or the bottom porous medium member also extends to the outer side surface.

[0019] A second aspect of an embodiment of the present application provides a stove, comprising the pot rack described in any one of the above items and a burner, wherein the pot rack body is arranged around the burner.

[0020] The embodiment of the present application provides a stove and a pot rack, wherein a bottom porous medium member is arranged at the bottom of the pot rack body so that the residence time of secondary air passing through the bottom of the pot rack is increased, that is, the heat exchange area between the secondary air and the bottom porous medium member is increased, and the secondary air after heat exchange flows into the combustion chamber to increase the combustion temperature of the burner flame, thereby improving the heating efficiency of the stove to the pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments or descriptions of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the coordination structure of a stove and a pot in one embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of a stove in one embodiment of the present application;

[0024] Figure 3 This is a schematic diagram of the structure of a pot rack in one embodiment of the present application;

[0025] Figure 4 This is a schematic structural diagram of a pot stand in one embodiment of the present application from another perspective;

[0026] Figure 5 This is a schematic structural diagram of a pot stand in another embodiment of the present application;

[0027] Figure 6 This is a structural schematic diagram of a pot rack in an embodiment of the present application from another perspective;

[0028] Figure 7 for Figure 6 A schematic cross-sectional structural diagram of a pot support along the AA direction;

[0029] Figure 8 This is a schematic cross-sectional structural diagram of a pot stand in another embodiment of the present application;

[0030] Fig. 9 This is a schematic cross-sectional structural diagram of a pot stand in another embodiment of the present application;

[0031] Fig.10 This is a schematic structural diagram of a pot rack in yet another embodiment of the present application.

[0032] Explanation of the accompanying drawings: 1000-stove; 200-burner; 210-outer ring fire cover; 2101-outer fire hole; 220-inner ring fire cover; 2201-inner fire hole; 100-pot rack; 10-pot rack body; 10a-combustion chamber; 103-inner side; 104-outer side; 107-mounting part; 1071-connecting part; 1072-bearing part; 107a-mounting groove; 107b-air inlet; 107c-air outlet; 15-bottom porous medium part; 15a-installation space; 50-pot support foot; 60-support leg; 60a-avoidance groove; 2000-pot; 3000-table top. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] See also Figure 1-Figure 2 , an embodiment of the present application provides a stove 1000 , which may include a pot rack 100 and a burner 200 .

[0035] The burner 200 includes a burner body, a nozzle (not shown in the figure), an outer ring fire cover 210 and an inner ring fire cover 220. A mixing chamber is arranged inside the burner body. The mixing chamber has an air inlet. The nozzle can spray gas into the air inlet. Since the injection speed of the gas is fast, the gas pressure in the air inlet can be lower than the external atmospheric pressure. Therefore, a part of the primary air can enter the air inlet. The gas and the primary air can be mixed in the mixing chamber. The outer ring fire cover 210 and the inner ring fire cover 220 are arranged on the burner body. The mixing chamber is respectively connected to the inner ring fire cover 220. 0 and the inner cavity of the outer ring fire cover 210 are connected, the inner ring fire cover 220 is provided with a plurality of inner fire holes 2201 and the outer ring fire cover 210 is provided with a plurality of outer fire holes 2101. When the burner 200 is working, the mixed gas in the mixing chamber can enter the inner ring fire cover 220 and the outer ring fire cover 210, so that the mixed gas is discharged from the inner fire hole 2201 and the outer fire hole 2101 respectively, and the discharged mixed gas is mixed with the secondary air for a second time and burns to form a flame, which can fully heat the pot 2000 placed on the pot rack 100.

[0036] The burner 200 also includes an air regulating plate (not shown in the figure) inside, and the air regulating plate is used to change the amount of primary air entering by adjusting the size of the air inlet to improve the state of the flame, so that the burner 200 obtains a good combustion condition. The embodiment of the present application does not specifically limit the type of the burner 200, for example, the burner 200 can be a diffusion burner 200, an atmospheric burner 200, a full premixed burner 200, etc.

[0037] It should be noted that the primary air is the ambient air absorbed from the vicinity of the nozzle, and the secondary air is the ambient air that directly participates in the combustion of the burner 200 .

[0038] See also Figure 3-Figure 4 Further, the pot rack 100 may include a pot rack body 10 and a bottom porous medium member 15. The pot rack body 10 may be arranged around the burner 200, that is, the pot rack body 10 is arranged in a ring shape and encloses a combustion chamber 10a for the flame of the burner 200 to pass through. The bottom porous medium member 15 is arranged at the bottom of the pot rack body 10, and the secondary air can flow through the bottom porous medium member 15, so that the bottom porous medium member 15 can fully exchange heat with the secondary air, and the secondary air after heat exchange flows into the combustion chamber 10a.

[0039] Specifically, a side of the pot rack body 10 away from the bottom porous medium member 15 may be provided with a pot support leg 50, which is used to support the pot 2000 (see Figure 1As shown), the flame of the burner 200 heats the pot 2000 through the combustion chamber 10a, and the pot rack body 10 needs to be made of a material with a high thermal conductivity system, such as a metal material, which is not limited in the embodiment of the present application.

[0040] Furthermore, the stove 1000 can form a secondary air heat recovery channel on the bottom porous medium member 15. When the secondary air is in full contact with the bottom porous medium member 15, due to the bottom porous medium member 15, on the one hand, the residence time of the secondary air in the bottom porous medium member 15 is prolonged, and on the other hand, the heat exchange area between the secondary air and the bottom porous medium member 15 is increased. At the same time, the secondary air is heated by the bottom porous medium member 15 when passing through the secondary air heat recovery channel, thereby achieving full preheating of the secondary air, and then bringing the heated secondary air back to the combustion chamber 10a, avoiding a significant reduction in the temperature of the burner 200 flame. In this way, the combustion efficiency of the burner 200 gas is improved, and the heating efficiency of the stove 1000 to the cooker 2000 is improved.

[0041] On the other hand, during the use of the stove 1000, the bottom porous medium member 15 and the pot rack body 10 are indirectly heated due to the effect of heat radiation to increase the surface temperature of the bottom porous medium member 15 and the pot rack body 10. When the secondary air passes through the pot rack 100, the secondary air is taken in from the bottom of the pot rack body 10 and contacts the bottom porous medium member 15. Since the surface temperature of the bottom porous medium member 15 is relatively high, the secondary air is preheated. The residual heat on the pot rack body 10 can be fully utilized by the burner 200 driven by the preheated secondary air to improve the utilization rate of the residual heat on the pot rack body 10. The residual heat mainly refers to the heat radiated to the pot rack body 10 by the flame, high-temperature smoke, the burner 200 and the pot 2000.

[0042] The embodiment of the present application sets a bottom porous medium member 15 at the bottom of the pot rack body 10, so that the secondary air is more fully preheated by the bottom porous medium member 15. On the one hand, the residence time of the secondary air in the bottom porous medium member 15 is prolonged, and on the other hand, the heat exchange area between the secondary air and the bottom porous medium member 15 is increased. The secondary air is heated by the bottom porous medium member 15 when passing through the secondary air heat recovery channel, thereby achieving more sufficient preheating of the secondary air, and then bringing the heated secondary air back to the combustion chamber 10a, avoiding a significant reduction in the temperature of the flame of the burner 200, thereby improving the combustion efficiency of the burner 200 and improving the heating efficiency of the cooker 1000 to the cooker 2000.

[0043] See also Figure 4In some embodiments, the bottom porous medium member 15 can extend continuously along the circumference of the pot rack body 10, so that the bottom porous medium member 15 is arranged around the circumference of the pot rack body 10, so that the heat exchange area can be increased. In addition, since the bottom porous medium extends continuously along the circumference of the pot rack body 10, the bottom porous medium member 15 is arranged in an annular shape. When the secondary air flows through the bottom porous medium member 15, the secondary air flowing through the bottom porous medium member 15 in the circumferential direction is relatively uniform due to the annular shape of the bottom porous medium member 15, so that the secondary air can exchange heat evenly with the bottom porous medium member 15 when passing through the secondary air heat recovery channel, thereby improving the heat exchange efficiency between the secondary air and the bottom porous medium member 15.

[0044] See also Figure 5 In some other embodiments, the bottom porous medium member 15 extends intermittently along the circumference of the pot rack body 10, and a support leg 60 is provided between two adjacent bottom porous medium members 15. It can be understood that the support leg 60 can be used to support the pot rack body 10 so that the pot rack body 10 can be stably placed on different countertops 3000 (see Figure 1 ), and the bottom porous medium member 15 can be arranged at intervals along the bottom of the pot rack body 10, so that there is an installation space 15a between two adjacent bottom porous medium members 15. In this way, on the one hand, it is convenient to arrange the support legs 60 in the installation space 15a, and on the other hand, it is convenient to flexibly produce the pot rack body 10 in the actual production process. When the support legs 60 are arranged at the bottom of the pot rack body 10, the bottom porous medium member 15 can be easily installed at the bottom of the pot rack body 10 by discontinuously extending the bottom porous medium member 15 along the circumferential direction of the pot rack body 10.

[0045] In some embodiments, the porosity of the bottom porous medium member 15 is not less than 80%. It can be understood that the porosity of the bottom porous medium member 15 is relatively appropriate. When the secondary air flows through the bottom porous medium member 15, the pressure generated by the bottom porous medium member 15 on the secondary air is relatively small, that is, the pressure loss on the secondary air when flowing in the bottom porous medium member 15 is relatively small, so that the secondary air can exchange heat with the bottom porous medium member 15 through the secondary air heat recovery channel of the bottom porous medium member 15, thereby increasing the heat exchange contact area and improving the heat exchange efficiency.

[0046] If the porosity of the bottom porous medium member 15 is less than 80%, the porosity of the bottom porous medium member 15 is relatively low. When the secondary air flows through the bottom porous medium member 15, not only the heat exchange area between the secondary air and the bottom porous medium member 15 is reduced, and the heat exchange efficiency is reduced, but also the bottom porous medium member 15 has a large wind resistance to the secondary air. The secondary air is subjected to a large pressure loss when flowing in the bottom porous medium member 15, which is not conducive to the rapid replenishment of the secondary air into the combustion chamber 10a.

[0047] In some embodiments, the bottom porous medium member 15 may include at least one of foam metal, metal mesh, metal fiber, and zeolite. Specifically, foam metal refers to a special metal material containing foam pores, and optionally, the foam metal may be foam copper, which is not specifically limited in the present embodiment; the metal mesh may be a metal plate mesh, that is, a metal plate with various shapes of holes on the surface; the metal fiber refers to a fiber-shaped material with a high metal content and continuous distribution of metal materials and a lateral size of micrometers; and the zeolite refers to a microporous crystalline aluminosilicate material.

[0048] Exemplarily, when the bottom porous medium member 15 is foam metal, foam metal is a new type of multifunctional material with a large number of connected or unconnected holes evenly distributed in a metal matrix, and foam metal has the characteristics of good thermal conductivity, high ductility and high porosity. When the foam metal is arranged at the bottom of the pot rack body 10, the secondary air flows through the foam metal and exchanges heat with the foam metal, thereby increasing the heat exchange area between the secondary air and the foam metal, and the secondary air after heat exchange flows into the combustion chamber 10a, thereby improving the combustion efficiency of the stove 1000.

[0049] When the bottom porous medium member 15 is a metal mesh, that is, the metal mesh can be set at the bottom of the pot rack body 10, and because the metal mesh is made of metal, it has a higher thermal conductivity, and the residual heat on the pot rack body 10 can be transferred to the metal mesh, and the metal mesh preheats the secondary air to improve the utilization rate of the residual heat on the pot rack body 10. Moreover, since the metal mesh is a mesh structure, when the secondary air flows through the metal mesh, the secondary air can fully exchange heat with the metal mesh to increase the heat exchange area between the secondary air and the metal mesh, and the secondary air after heat exchange is introduced into the combustion chamber 10a, so that the secondary air after heat exchange can fully burn the flame of the burner 200, thereby improving the heating efficiency of the stove 1000.

[0050] In some embodiments, the bottom porous medium member 15 can be connected to the pot rack body 10 by welding, riveting, screwing, clamping, interference fit and other connection methods, which are not specifically limited in the embodiments of the present application.

[0051] Exemplarily, when the bottom porous medium member 15 is connected to the pot rack body 10 by welding, the bottom porous medium member 15 can be continuously or intermittently welded to the bottom of the pot rack body 10, thereby improving the stability and heat transfer efficiency of the bottom porous medium member 15 connected to the pot rack body 10.

[0052] In some embodiments, a heat conductor (not shown in the figure) is provided at the bottom of the pot rack body 10, and the heat conductor is inserted into the bottom porous medium member 15. The heat conductor can transfer the waste heat on the pot rack body 10 to the bottom porous medium member 15, so that the surface of the bottom porous medium member 15 has a temperature. When the secondary air flows through the secondary air heat recovery channel and exchanges heat with the bottom porous medium member 15, the secondary air can be preheated, and the preheated secondary air enters the combustion chamber 10a, so that the waste heat on the pot rack body 10 can be fully utilized by the burner 200 under the action of the secondary air, thereby improving the waste heat utilization rate of the pot rack body 10.

[0053] In some other embodiments, the bottom porous medium member 15 is attached to the bottom of the pot rack body 10 so that the contact area between the bottom porous medium member 15 and the pot rack body 10 is increased. When the secondary air flows through the bottom porous medium member 15, the heat exchange surface between the secondary air and the bottom porous medium member 15 in the secondary air heat recovery channel is also increased, thereby improving the heat exchange efficiency.

[0054] See also Figure 6-Figure 7 In some embodiments, the pot rack 100 further includes a mounting member 107, which is connected to the pot rack body 10, that is, the mounting member 107 can be installed at the bottom of the pot rack body 10. The embodiment of the present application does not specifically limit the shape of the mounting member 107 and the material used for the mounting member 107. For example, the shape of the mounting member 107 can be rectangular or diamond-shaped; the material used for the mounting member 107 can be heat-conductive metal.

[0055] When the mounting member 107 is made of heat-conducting metal, the residual heat on the pot rack body 10 can be transferred to the mounting member 107, and the mounting member 107 then transfers the residual heat from the pot rack body 10 to the bottom porous medium member 15, so that the surface temperature of the bottom porous medium member 15 increases. When the secondary air flows through the bottom porous medium member 15, the bottom porous medium member 15 can preheat the secondary air, so that the residual heat on the pot rack body 10 can be fully utilized, thereby improving the utilization rate of the residual heat on the pot rack body 10.

[0056] See also Figure 7Furthermore, the mounting member 107 has a mounting groove 107a, and the bottom porous medium member 15 can be installed in the mounting groove 107a, so that the bottom porous medium member 15 can be stably installed with the mounting member 107, and the mounting member 107 also has an air inlet 107b and an air outlet 107c connected to the mounting groove 107a, wherein secondary air can enter the mounting groove 107a through the air inlet 107b, so that the secondary air and the bottom porous medium member 15 can exchange heat, and the setting of the air inlet 107b can make the secondary air more fully exchange heat with the bottom porous medium member 15, and the secondary air after heat exchange can flow into the combustion chamber 10a from the air outlet 107c, so that the burner 200 can fully burn the gas, that is, the heating efficiency of the stove 1000 is improved.

[0057] Please continue reading Figure 7 In some embodiments, the mounting member 107 may include a connecting portion 1071 and a bearing portion 1072 .

[0058] Specifically, one end of the connecting portion 1071 is connected to the bottom of the pot rack body 10, and the connecting portion 1071 extends downward from the bottom of the pot rack body 10, and the other end of the connecting portion 1071 is formed by extending downward from the bottom of the pot rack body 10 and is connected to the bearing portion 1072, and the connecting portion 1071 and the bearing portion 1072 are arranged at an angle, wherein the bearing portion 1072 and the pot rack body 10 are spaced apart, so that the bearing portion 1072, the connecting portion 1071 and the pot rack body 10 jointly constitute the installation groove 107a, and the bottom porous medium member 15 is installed in the installation groove 107a, so that the stable installation of the bottom porous medium member 15 is achieved.

[0059] Furthermore, the connecting portion 1071 may have one of the air inlet 107b or the air outlet 107c, and the end of the supporting portion 1072 away from the connecting portion 1071 forms the other of the air inlet 107b or the air outlet 107c with the bottom of the pot rack body 10, that is, the secondary air can enter the secondary air heat recovery channel from the air inlet 107b and exchange heat with the bottom porous medium member 15, and then the secondary air after heat exchange enters the combustion chamber 10a from the air outlet 107c, so that the heat exchange efficiency can be increased.

[0060] Please continue reading Figure 7Furthermore, in some embodiments, the bearing portion 1072 extends from the connecting portion 1071 in a direction away from the combustion chamber 10a, and the bearing portion 1072 forms an annular air inlet 107b with the bottom of the pot rack body 10 at one end away from the connecting portion 1071. It can be understood that at this time, the opening of the annular air inlet 107b is facing away from the combustion chamber 10a. When the bottom porous medium member 15 needs to be installed, the bottom porous medium member 15 can be installed into the installation groove 107a through the annular air inlet 107b. In this way, the convenience of installing the bottom porous medium member 15 is improved, and the annular air inlet 107b can also increase the air intake of secondary air.

[0061] In order to facilitate the installation of the bottom porous medium member 15 into the installation groove 107a, the bottom porous medium member 15 can be arranged in the installation groove 107a in multiple intervals, or can be installed in the installation groove 107a in an overall ring-shaped arrangement. The embodiment of the present application does not make specific limitations on this. When the bottom porous medium member 15 is arranged in an overall ring-shaped arrangement, the bottom porous medium member 15 can be elastic (for example, foam copper can be elastic) so that the bottom porous medium member 15 can be stretched to achieve simple installation and removal.

[0062] See also Figure 8 In some other embodiments, the bearing portion 1072 extends from the connecting portion 1071 toward the direction close to the combustion chamber 10a, and the end of the bearing portion 1072 away from the connecting portion 1071 forms a ring-shaped air outlet 107c with the bottom of the pot rack body 10, that is, the air outlet 107c is close to the combustion chamber 10a, and the opening of the air outlet 107c is set toward the combustion chamber 10a. At this time, the corresponding air inlet 107b needs to be away from the combustion chamber 10a. In this way, it is convenient to install the bottom porous medium member 15 into the installation groove 107a from the opening of the air outlet 107c to improve the convenience of installing the bottom porous medium member 15. At this time, the bottom porous medium member 15 used can be made of non-elastic material, that is, there is no need to stretch the bottom porous medium member 15, so as to improve the service life of the bottom porous medium member 15.

[0063] In some embodiments, the mounting member 107 can be arranged in an annular shape, that is, the mounting member 107 can continuously extend along the circumference of the pot rack body 10, so that the mounting member 107 is arranged circumferentially at the bottom of the pot rack body 10. Due to the effect of thermal radiation, the surface temperature of the bottom porous medium member 15 is relatively high, and the residual heat on the pot rack body 10 can be transferred to the bottom porous medium member 15 through the mounting member 107. Moreover, because the mounting member 107 is arranged in an annular shape at the bottom of the pot rack body 10, the heat transfer area from the residual heat on the pot rack body 10 to the mounting member 107 can be increased.

[0064] Furthermore, since the bottom porous medium member 15 is installed in the installation groove 107 a of the installation member 107 , when the installation member 107 is arranged in an annular shape, the stability of the bottom porous medium member 15 and the installation member 107 installed on the pot rack body 10 can be improved.

[0065] It should be noted that the embodiment of the present application does not specifically limit the form in which the mounting member 107 is installed on the pot rack body 10. For example, the mounting member 107 may be installed on the pot rack body 10 by welding, riveting, and clamping.

[0066] See also Figure 7 In other embodiments, a plurality of mounting members 107 are arranged at intervals along the circumference of the pot rack body 10, that is, a plurality of mounting members 107 can be arranged at intervals at the bottom of the pot rack body 10. The embodiment of the present application does not specifically limit the number of mounting members 107, so that the materials used in the stove 1000 can be saved.

[0067] See also Fig. 9 In some embodiments, when a plurality of mounting members 107 are arranged at intervals along the circumference of the pot rack body 10, a plurality of connecting portions 1071 are alternately located on the outside and inside of the annular bottom porous medium member 15, and two adjacent bearing portions 1072 can be connected to the connecting portion 1071 located on the inside of the bottom porous medium member 15, or can be connected to the connecting portion 1071 located on the outside of the bottom porous medium member 15.

[0068] Specifically, in two adjacent mounting members 107, when the bearing portion 1072 is connected to the connecting portion 1071 located on the inner side of the bottom porous medium member 15, the connecting portion 1071 extends in a direction away from the combustion chamber 10a to support the bottom porous medium member 15; and when the bearing portion 1072 is connected to the connecting portion 1071 located on the outer side of the bottom porous medium member 15, the connecting portion 1071 extends in a direction close to the combustion chamber 10a to support the bottom porous medium member 15.

[0069] It can be understood that the connecting portion 1071 is arranged at the bottom of the pot support body 10 and is alternately located on the outside and inside of the annular bottom porous medium member 15, and the multiple bearing portions 1072 extend alternately toward or away from the combustion chamber 10a, so that the bearing portion 1072 can bear the bottom porous medium member 15, and the bottom porous medium member 15 is limited in the radial direction of the pot support body 10 by the connecting portion 1071 alternately located on the outside and inside of the annular bottom porous medium member 15, and the bottom porous medium member 15 is not easy to fall off from the multiple mounting members 107, and the installation stability of the bottom porous medium member 15 at the bottom of the pot support body 10 is improved without the need to weld the bottom porous medium member 15 to the bearing portion 1072.

[0070] See also Fig.10 In some embodiments, the pot support 100 further includes a supporting leg 60, the supporting leg 60 has an avoidance groove 60a, and the annular bottom porous medium member 15 is partially disposed in the avoidance groove 60a.

[0071] Specifically, the support legs 60 are arranged at the bottom of the pot rack body 10. The existence of the support legs 60 may block the annular bottom porous medium member 15 from being installed on the bottom of the pot rack body 10, so that the annular bottom porous medium member 15 cannot form a regular ring shape, resulting in the annular bottom porous medium member 15 being unable to uniformly contact with the secondary air in the circumferential direction, affecting the heat exchange efficiency. By providing an avoidance groove 60a on the support legs 60 and partially installing the annular bottom porous medium member 15 in the avoidance groove 60a, the annular bottom porous medium member 15 can be made into a regular ring shape, which is beneficial for the annular bottom porous medium member 15 to uniformly contact with the secondary air in the circumferential direction, so as to improve the heat exchange efficiency.

[0072] Furthermore, since the annular bottom porous medium member 15 can be partially disposed in the avoidance groove 60a, the annular bottom porous medium member 15 may not be subjected to a large stretching force. That is, when the annular bottom porous medium member 15 is disposed at the bottom of the pot rack body 10, there is no problem of the annular bottom porous medium member 15 being subjected to a stretching force in order to avoid the supporting legs 60. In this way, the service life of the bottom porous medium member 15 is improved.

[0073] In some embodiments, the thickness of the bottom porous medium member 15 in the axial direction of the pot support body 10 is smaller than the width of the bottom porous medium member 15 in the radial direction of the pot support body 10. In this way, the radial width of the bottom porous medium member 15 can be increased, so that the path of the secondary air flowing through the bottom porous medium member 15 is longer, that is, the heat exchange time of the secondary air with the bottom porous medium member 15 in the secondary air heat recovery channel becomes longer and the heat exchange area increases, thereby improving the heat exchange efficiency.

[0074] Please continue reading Fig.10 In some embodiments, the pot support body 10 may include an inner side surface 103 disposed toward the combustion chamber 10a and an outer side surface 104 facing away from the combustion chamber 10a, wherein the bottom porous medium member 15 may extend to the inner side surface 103 of the combustion chamber 10a, or to the outer side surface 104 of the combustion chamber 10a, or to both the inner side surface 103 and the outer side surface 104 of the combustion chamber 10a, and the embodiments of the present application do not specifically limit this.

[0075] Exemplarily, when the bottom porous medium member 15 extends to the inner side surface 103 of the combustion chamber 10a, the heat exchange area between the secondary air and the bottom porous medium member 15 in the secondary air heat recovery channel is increased, and the time the secondary air stays on the bottom porous medium member 15 is increased, so that the heat exchange time and the heat exchange area of ​​the secondary air in the secondary air heat recovery channel are prolonged and increased, thereby improving the heat exchange efficiency.

[0076] 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.

[0077] 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: include: The pot support body is arranged in a ring shape and encloses a combustion chamber for the flame of the burner to pass through; The bottom porous medium member is arranged at the bottom of the pot support body, and the secondary air can flow through the bottom porous medium member and enter the combustion chamber after exchanging heat with the bottom porous medium member.

2. The pot support according to claim 1, characterized in that: The bottom porous medium member extends continuously along the circumference of the pot support body and is arranged in a ring shape; or, The bottom porous medium member extends intermittently along the circumferential direction of the pot support body, and a support leg connected to the pot support body is arranged at a distance between two adjacent bottom porous medium members.

3. The pot support according to claim 1, characterized in that: The porosity of the bottom porous medium member is not less than 80%.

4. The pot support according to claim 1, characterized in that: The bottom porous medium member comprises one of foam metal, metal mesh, metal fiber and zeolite.

5. The pot support according to claim 1, characterized in that: The connection method between the bottom porous medium member and the pot support body includes at least one of welding, riveting, screwing, clamping and interference fit.

6. The pot support according to claim 1, characterized in that: A heat conducting member is disposed at the bottom of the pot support body, and the heat conducting member is penetrated into the bottom porous medium member; and / or, The bottom porous medium member is attached to the bottom of the pot rack body.

7. The pot support according to claim 1, characterized in that: The pot rack also includes: A mounting member connected to the pot rack body, the mounting member having a mounting groove, and having an air inlet and an air outlet communicated with the mounting groove, and the bottom porous medium member is installed in the mounting groove; Among them, the secondary air can enter the installation groove through the air inlet to exchange heat with the bottom porous medium member, and enter the combustion chamber from the air outlet.

8. The pot support according to claim 7, characterized in that: The mounting member comprises: a connecting portion connected to the bottom of the pot rack body and extending downward from the bottom of the pot rack body, wherein the connecting portion has one of the air inlet or the air outlet; and The bearing portion is connected to the end of the connecting portion away from the pot rack body and is arranged at an angle to the connecting portion. The bearing portion and the pot rack body are arranged at a distance so that the bearing portion, the connecting portion and the pot rack body jointly constitute the mounting groove, and the end of the bearing portion away from the connecting portion and the bottom of the pot rack body form the other of the air inlet or the air outlet.

9. The pot support according to claim 8, characterized in that: The bearing portion extends from the connecting portion in a direction away from the combustion chamber, and one end of the bearing portion away from the connecting portion forms the annular air inlet with the bottom of the pot support body; or, The bearing portion extends from the connecting portion toward the combustion chamber, and one end of the bearing portion away from the connecting portion forms the annular air outlet with the bottom of the pot support body.

10. The pot support according to claim 8, characterized in that: The mounting member is arranged in a ring shape, or a plurality of the mounting members are arranged at intervals along the circumference of the pot support body.

11. The pot support according to claim 1, characterized in that: The pot rack further comprises a plurality of mounting members, which are arranged at intervals along the circumference of the pot rack body, and the mounting members comprise: A connecting portion connected to the bottom of the pot support body and extending downward from the bottom of the pot support body, and a plurality of the connecting portions are alternately located on the outside and inside of the annular bottom porous medium member; and A bearing portion is connected to one end of the connecting portion away from the pot support body and is arranged at an angle to the connecting portion. Among the two adjacent bearing portions, the bearing portion connected to the connecting portion located on the inner side of the bottom porous medium member extends from the connecting portion in a direction away from the combustion chamber to carry the bottom porous medium member, and the bearing portion connected to the connecting portion located on the outer side of the bottom porous medium member extends from the connecting portion in a direction close to the combustion chamber to carry the bottom porous medium member.

12. The pot support according to claim 1, characterized in that: The pot support also includes: The supporting leg is arranged at the bottom of the pot rack body, and the supporting leg has an avoidance groove, and the annular bottom porous medium part is partially arranged in the avoidance groove.

13. The pot support according to claim 1, characterized in that: The thickness of the bottom porous medium member in the axial direction of the pot support body is smaller than the width of the bottom porous medium member in the radial direction of the pot support body.

14. The pot support according to any one of claims 1 to 13, characterized in that: The pot support body also includes an inner side surface arranged toward the combustion chamber and an outer side surface facing away from the combustion chamber; Wherein, the bottom porous medium member further extends to the inner side surface; and / or the bottom porous medium member further extends to the outer side surface.

15. A cooking appliance, characterized in that: include: The pot stand according to any one of claims 1 to 14; as well as, The burner is surrounded by the pot support body.

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