Gas distribution plates, burners and gas cookers

Abstract

The present invention discloses a gas distribution plate, a burner and a gas cooker, wherein the gas distribution plate comprises: a main plate body, the main plate body is formed with a first gas distribution cavity and a second gas distribution cavity, the main plate body is provided with a first air inlet and an outer ring fire cover air outlet respectively connected with the first gas distribution cavity, the outer ring fire cover air outlet is connected with the outer ring fire hole of the outer ring fire cover; and a guide pipe is arranged on the main plate body, one end of the guide pipe is connected with the first gas distribution cavity, and the other end is formed with a first inner ring fire cover air outlet respectively connected with the central fire hole and the first side fire hole of the inner ring fire cover; the main plate body is also provided with a second air inlet and a second inner ring fire cover air outlet respectively connected with the second gas distribution cavity, the second inner ring fire cover air outlet is connected with the second side fire hole of the inner ring fire cover, and the first air inlet and the second air inlet are arranged towards the same side of the main plate body.

Description

Technical Field

[0001] The invention relates to the field of kitchen appliances, and in particular to a gas distribution plate, a burner and a gas cooker. Background Art

[0002] The existing gas distribution plate generally has two gas inputs, one of which is used to provide airflow for the outer ring fire cover, and the other is used to provide airflow for the inner ring fire cover. In order to ensure the gas pressure of the side fire holes of the inner ring fire, the gas load input to the inner ring fire cover is usually kept at a high state. Due to the high gas load, the gas load of the central fire hole is large. In the state of extremely small fire, the high gas load will cause the flame of the extremely small fire to be large, and excessive gas load will cause the flame to be unstable. Summary of the invention

[0003] The main purpose of the present invention is to provide a gas distribution plate, a burner and a gas cooker, aiming to improve the problem of excessive gas load output from the existing gas distribution plate to the central fire hole of the inner ring fire cover.

[0004] To achieve the above object, the present invention provides a gas distribution plate for a burner having an inner ring fire cover and an outer ring fire cover, wherein the outer ring fire cover has an outer ring fire hole, and the inner ring fire cover has a central fire hole, a first side fire hole, and a second side fire hole, and the gas distribution plate includes:

[0005] A main plate body, wherein the main plate body is formed with a first air sub-cavity and a second air sub-cavity, and the main plate body is provided with a first air inlet and an outer ring fire cover air outlet respectively connected with the first air sub-cavity, and the outer ring fire cover air outlet is connected with the outer ring fire hole of the outer ring fire cover; and

[0006] A guide pipe is arranged on the main disk body, one end of which is connected to the first air sub-cavity, and the other end is formed with a first inner ring fire cover air outlet respectively connected to the central fire hole and the first side fire hole of the inner ring fire cover; the main disk body is also provided with a second air inlet and a second inner ring fire cover air outlet respectively connected to the second air sub-cavity, the second inner ring fire cover air outlet is connected to the second side fire hole of the inner ring fire cover, and the first air inlet and the second air inlet are arranged towards the same side of the main disk body.

[0007] Optionally, the main disk body comprises:

[0008] A central disk, one end of which forms the first air inlet, the other end of which forms the second inner ring fire cover air outlet, and the outer ring fire cover air outlet is formed on the central disk; and

[0009] An annular baffle is arranged in the central disk body, the first air division cavity is formed between the annular baffle and the central disk body, the second air division cavity is formed in the annular baffle, the second air inlet is formed at one end of the annular baffle facing the first air inlet, and the end of the annular baffle away from the first air inlet is connected to the second inner ring fire cover outlet.

[0010] Optionally, the guide pipe is arranged inside the annular partition, and one end of the guide pipe away from the first inner ring fire cover air outlet passes through the side wall of the annular partition and is connected with the first air distribution cavity.

[0011] Optionally, the central disk further comprises a connecting pipe, one end of which is connected to an end of the guide pipe away from the air outlet of the first inner ring fire cover, and the other end of which passes through the side wall of the annular partition and is communicated with the first air distribution cavity.

[0012] Optionally, the main disk body further includes a third air distribution cavity, and the air outlet of the outer ring fire cover and the outer ring fire hole of the outer ring fire cover are respectively connected to the third air distribution cavity.

[0013] Optionally, the main disk body further includes:

[0014] The outer disc body is arranged around the outer periphery of the central disc body and connected with the central disc body, and the third air dividing cavity is arranged inside the outer disc body.

[0015] Optionally, the main disk body further includes:

[0016] The outer disk is connected to the central disk through the support part, and an air flow channel connecting the third air distribution cavity and the air outlet of the outer ring fire cover is arranged inside the support part.

[0017] Optionally, there are multiple support parts, and secondary air supply inlets for supplying air to the inner fire ring cover are formed between adjacent support parts.

[0018] Optionally, one end of the annular partition away from the first air inlet is connected to one end of the main disk body away from the first air inlet through a connecting wall, and the second inner ring fire cover air outlet is arranged on the connecting wall.

[0019] Based on the above-mentioned gas distribution plate, the present invention provides a burner, comprising the above-mentioned gas distribution plate, and

[0020] An inner ring fire cover is arranged on the main plate body of the gas distribution plate, the inner ring fire cover is formed with a first inner ring gas cavity and a second inner ring gas cavity, the inner ring fire cover is provided with a central fire hole and a first side fire hole connected to the first inner ring gas cavity, and the inner ring fire cover is also provided with a second side fire hole connected to the second inner ring gas cavity;

[0021] The first inner ring fire cover gas outlet of the gas distribution plate is communicated with the first inner ring gas cavity, and the second inner ring fire cover gas outlet of the gas distribution plate is communicated with the second inner ring gas cavity.

[0022] Optionally, the inner ring fire cover comprises:

[0023] A top cover, wherein the central fire hole is arranged on the top cover;

[0024] An inner annular wall, wherein the inner annular wall forms a central cavity;

[0025] an outer annular wall, the top cover is arranged on the outer annular wall, the outer annular wall is installed on the main plate body of the gas distribution plate, and the first side fire hole and the second side fire hole are arranged on the outer annular wall; and

[0026] A connecting plate, one end of which is connected to the inner wall of the outer ring wall, and the other end is connected to one end of the inner ring wall close to the top cover, the top cover, the outer ring wall and the connecting plate together form the first inner ring gas cavity, the first inner ring gas cavity is communicated with the first inner ring fire cover outlet through the central cavity, the outer ring wall, the connecting plate, the inner ring wall and the main disk body of the gas distribution disk together form the second inner ring gas cavity, the second inner ring fire cover outlet passes through the main disk body and is communicated with the second inner ring gas cavity.

[0027] Optionally, the outer ring wall is provided with a flame stabilizing hole connected to the second inner ring combustion chamber.

[0028] Optionally, a flame stabilizing groove is provided on the outer periphery of the outer ring wall;

[0029] One end of the flame stabilizing hole away from the second inner ring combustion chamber is connected to the flame stabilizing groove, and / or the flame stabilizing groove is connected to the interior of the second side fire hole through a through hole.

[0030] Optionally, a guide wall is provided between the inner annular wall and the connecting plate, one end of the guide wall is connected to the inner annular wall, and the other end is connected to an end of the connecting plate away from the outer annular wall;

[0031] A first guide slope is formed on one side surface of the guide wall facing the first inner ring gas cavity, which is used to guide the airflow in the central cavity toward the first side fire hole; and / or, a second guide slope is formed on one side surface of the guide wall facing the second inner ring gas cavity, which is used to guide the airflow in the second inner ring gas cavity toward the second side fire hole.

[0032] Optionally, the inner ring fire cover also includes:

[0033] A fixed net is installed on a side of the top cover facing away from the first inner ring gas chamber; and

[0034] The infrared combustion plate is installed between the fixed net and the top cover.

[0035] Optionally, the burner further comprises:

[0036] The outer ring fire cover is installed on the gas distribution plate, and the outer ring fire cover is provided with an outer ring fire hole connected to the outer ring fire cover air outlet of the gas distribution plate.

[0037] Based on the above burner, the present invention provides a gas cooker, which includes the above burner.

[0038] The technical solution of the present invention is to make the gas distribution plate have two independent air flow inputs of the first air inlet and the second air inlet, and respectively transport the air flow input from the first air inlet to the outer ring fire cover and the first inner ring fire cover air outlet through the first air distribution cavity, and transport the air flow input from the second air inlet to the second inner ring fire cover air outlet through the second air distribution cavity, so that the air flow is simultaneously transported to the central fire hole and the first side fire hole of the inner ring fire cover and the outer ring fire cover, thereby reducing the gas load of the central fire hole, so that the flame formed by the injection of the central fire hole is more stable, and the problem of flame separation due to excessive gas load at the central fire hole is avoided; by transporting the air flow input from the second air inlet to the second side fire hole, adaptive adjustment of the injection flame of the inner ring fire cover is achieved, and the overall size of the middle ring flame is not affected while reducing the central flame formed by the central fire hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0040] Figure 1 This is a schematic structural diagram of an embodiment of a gas distribution plate of the present invention;

[0041] Figure 2 This is a schematic diagram of the structure of an embodiment of the internal structure of the gas distribution plate of the present invention;

[0042] Figure 3 It is a structural schematic diagram of an embodiment of the internal gas path state of the gas distribution plate of the present invention;

[0043] Figure 4 It is a structural schematic diagram of an embodiment of the gas distribution plate air inlet side of the present invention;

[0044] Figure 5 It is a structural schematic diagram of an embodiment of a burner of the present invention;

[0045] Figure 6 It is a structural schematic diagram of an embodiment of the internal gas path state of the burner of the present invention;

[0046] Figure 7 It is a structural schematic diagram of an embodiment of an inner ring fire cover of the present invention;

[0047] Figure 8 It is a schematic structural diagram of another embodiment of the inner ring fire cover of the present invention.

[0048] Description of Figure Numbers:

[0049]

[0050]

[0051] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] See also Figure 1 and Figure 2The present invention proposes a gas distribution plate for a burner having an inner ring fire cover 40 and an outer ring fire cover 50, wherein the outer ring fire cover 50 has an outer ring fire hole 51, and the inner ring fire cover 40 has a central fire hole 411, a first side fire hole 441 and a second side fire hole 442, and the gas distribution plate comprises: a main plate body, wherein the main plate body is formed with a first gas distribution cavity 12 and a second gas distribution cavity 112, and the main plate body is provided with a first air inlet 15 and an outer ring fire cover air outlet 121 respectively connected to the first gas distribution cavity 12, and the outer ring fire cover air outlet 121 is connected to the outer ring fire hole 51 of the outer ring fire cover 50; and A guide pipe 13 is arranged on the main disk body, one end of which is connected to the first air sub-cavity 12, and the other end is formed with a first inner ring fire cover air outlet 131 which is respectively connected to the central fire hole 411 and the first side fire hole 441 of the inner ring fire cover 40; the main disk body is also provided with a second air inlet 16 and a second inner ring fire cover air outlet 111 which are respectively connected to the second air sub-cavity 112, the second inner ring fire cover air outlet 111 is connected to the second side fire hole 442 of the inner ring fire cover 40, and the first air inlet 15 and the second air inlet 16 are arranged on the same side of the main disk body.

[0056] See also Figure 3 and Figure 4 The first air-dividing cavity 12 and the second air-dividing cavity 112 are two independent chambers arranged in the air-dividing plate. The first air inlet 15 is connected to the first air-dividing cavity 12, and serves as the air inlet end of the first air-dividing cavity 12. The outer ring fire cover air outlet 121 and the first inner ring fire cover air outlet 131 are respectively connected to the first air-dividing cavity 12, and serve as the two air outlet ends of the first air-dividing cavity 12.

[0057] The second air inlet 16 is connected to the second air cavity 112, and serves as the air inlet end of the second air cavity 112. The second inner ring fire cover air outlet 111 is connected to the second air cavity 112, and serves as the air outlet end of the second air cavity 112. The air distribution plate forms a state of two air inlets and three air outlets. The central fire hole of the inner ring fire cover 50 sprays and burns to form a central flame, the first side fire hole 441 and the second side fire hole 442 spray and burn to form a middle ring flame, and the outer ring fire hole sprays and burns to form an outer ring flame.

[0058] The guide pipe 13 is arranged on the main disc body, and is used to form a channel on the main disc body that is connected to the first air distribution cavity 12, so as to form the first inner ring fire cover outlet 131. After the airflow enters the first air distribution cavity 12, part of it is transported to the outer ring fire cover outlet 121, and part of it is transported to the first inner ring fire cover outlet 131. The airflow transported to the first inner ring fire cover outlet 131 is transported to the central fire hole 411 and the first side fire hole 441 of the inner ring fire cover 40 corresponding to the air distribution disc. Since the gas transported to the first inner ring fire cover outlet 131 of the air distribution disc is transported to the central fire hole 411 and the first side fire hole 441 of the inner ring fire cover 40 at the same time, the first side fire hole 441 can be used to share the gas load output from the first inner ring fire cover outlet, so that the gas load transported to the central fire hole 411 is relatively reduced, and then the flame formed by the injection of the central fire hole 411 can be relatively smaller, and the combustion state is more stable.

[0059] Since the airflow of the first sub-cavity 12 is partially transported to the outer ring fire cover outlet 121 at the same time, and is sprayed through the outer ring fire holes 51 of the outer ring fire cover 50 to form flames, the outer ring fire holes 51 can share the gas load input by the first air inlet 15, thereby reducing the gas load of the first inner ring fire cover outlet 131, so that the gas load of the central fire hole 411 is relatively reduced, and the gas load of the outer ring fire holes 51 and the central fire hole 411 of the inner ring fire cover 40 can be reduced, which can improve the stability of the outer ring flame formed by the outer ring fire holes 51 and the central flame formed by the central fire hole 411. Since the airflow output from the first inner ring fire cover outlet 131 can be diverted, and the outer ring fire cover outlet 121 can also reduce the gas load of the first inner ring fire cover outlet 131, when designing the inner ring fire cover 40 corresponding to the gas distribution plate, the inner diameter of the central fire hole 411 can be made smaller, thereby making the flame smaller in the extremely small fire combustion state, and having a stable extremely small fire combustion state.

[0060] The gas input from the second air inlet 16 is transported from the second air distribution cavity 112 to the second inner ring fire cover outlet 111, and the gas output from the second inner ring fire cover outlet 111 is output through the second side fire hole 442. Since the gas source of the second side fire hole 442 is different from the gas source of the first side fire hole 441, when adjusting the gas load of the second air inlet 16, the gas load of the first air inlet 15 is not affected, so that the flow rate of the airflow formed by the second side fire hole 442 and the first side fire hole 441 of the inner ring fire cover 40 corresponding to the gas distribution plate can be inconsistent. By adjusting the flow rate of the jet airflow of the first side fire hole 441 and the second side fire hole 442, the effect of stabilizing the flame of the middle ring flame can be achieved, thereby improving the stability of the combustion state of the inner ring fire cover 40 corresponding to the gas distribution plate.

[0061] The first air inlet 15 and the second air inlet 16 can be arranged toward the same side of the main disk body, the first inner ring fire cover air outlet 131 and the second inner ring fire cover air outlet 111 can be arranged toward the other side of the main disk body, and the outer ring fire cover air outlet 121 can be arranged on the side wall of the main disk body.

[0062] The guide pipe 13 is used to penetrate the main plate body to guide part of the airflow in the first air distribution cavity 12 to the outside of the main plate body. When the inner ring fire cover 40 is provided, it is matched with the air distribution plate. The central fire hole 411 can be a plurality of through holes facing the first inner ring fire cover air outlet 131, and the first side fire hole 441 and the second side fire hole 442 are respectively arranged around the outer periphery of the inner ring fire cover 40.

[0063] When the gas load of the first air inlet 15 is adjusted, since the gas loads of the outer ring fire cover outlet 121 and the first inner ring fire cover outlet 131 are adjusted synchronously, a wider adjustment range of the burner corresponding to the gas distribution plate can be achieved.

[0064] When used in a burner, the air pressure output by the gas distribution plate to the first inner ring fire cover outlet 131 and the air pressure output to the second inner ring fire cover outlet 111 do not interfere with each other. The central flame, the outer ring flame and part of the middle ring flame can be adjusted by adjusting the gas load of the first air inlet 15. At the same time, the middle ring flame can be made to meet the preset requirements by adjusting the gas load of the second air inlet 16, thereby making the combustion state of the burner more diversified and suitable for use in different heating scenarios.

[0065] See also Figure 1 and Figure 4 In one embodiment of the present invention, the main disk body includes: a central disk body 10, one end of the central disk body 10 forms the first air inlet 15, the other end forms the second inner ring fire cover air outlet 111, and the central disk body 10 is formed with the outer ring fire cover air outlet; and an annular baffle 11, which is arranged in the central disk body 10, the first air sub-cavity 12 is formed between the annular baffle 11 and the central disk body 10, the second air sub-cavity 112 is formed in the annular baffle 11, the second air inlet 16 is formed at one end of the annular baffle 11 facing the first air inlet 15, and the end of the annular baffle 11 away from the first air inlet 15 is connected to the second inner ring fire cover air outlet 111.

[0066] The second air-dividing cavity 112 is a cavity formed inside the annular partition 11, and the first air-dividing cavity 12 is an annular cavity formed between the annular partition 11 and the inner wall of the central disk body 10. The second air inlet 16 is formed at one end of the annular partition 11, and the other end is connected to the inner wall of the central disk body 10. The airflow is input into the second air-dividing cavity 112 from the second air inlet 16 at one end of the central disk body 10, and is output to the second inner ring fire cover air outlet 111 from the other end of the annular partition 11.

[0067] The first air inlet 15 is formed on the central disk body 10, and the outer ring fire cover air outlet 121 is arranged on the inner wall of the central disk body 10. One end of the guide tube 13 extends into the central disk body 10 and is connected to the second air distribution cavity 112, and the other end is connected to the outside of the central disk body 10 to form the first inner ring fire cover air outlet 131.

[0068] By making the first air distribution cavity 12 an annular cavity, the airflow can flow relatively dispersedly after entering the first air distribution cavity 12, so that the airflow can be fully mixed during the flow, which helps to improve the utilization efficiency of the gas in the airflow.

[0069] When manufacturing the central disk 10, the guide tube 13 can be arranged inside the annular partition 11, and one end of the guide tube 13 away from the first inner ring fire cover air outlet 131 penetrates the side wall of the annular partition 11 and communicates with the first air distribution cavity 12. The first inner ring fire cover air outlet 131 can be made to coincide with the axis of the first air inlet 15, the second air inlet 16 and the annular partition 11.

[0070] Further optionally, the central disk body 10 further comprises a connecting pipe 14, one end of which is connected to one end of the guide pipe 13 away from the first inner ring fire cover air outlet 131, and the other end of which penetrates the side wall of the annular partition 11 and is in communication with the first air distribution cavity 12. The guide pipe 13 can be coaxially arranged with the annular partition 11, and one end of the guide pipe 13 close to the first inner ring fire cover air outlet 131 can extend out of the central disk body 10 to facilitate cooperation with the inner ring fire cover 40.

[0071] By using the connecting pipe 14 as the connecting medium between the first air distribution cavity 12 and the guide pipe 13, the airflow output direction of the guide pipe 13 can be conveniently controlled so that the guide pipe 13 can be better adapted to the inner ring fire cover 40, so that the airflow output from the first inner ring fire cover air outlet 131 can be transported toward the center fire hole 411 according to a preset trajectory.

[0072] Since the first air sub-cavity 12 is an annular cavity arranged in the central disk body 10, when the airflow enters the first air sub-cavity 12, it will flow along the inner wall of the central disk body 10 and the outer wall of the annular partition 11. The end of the connecting pipe 14 away from the guide pipe 13 passes through the outer wall of the annular partition 11 and is connected with the first air sub-cavity 12. The outer ring fire cover air outlet 121 is connected with the side wall of the central disk body 10, so that when the airflow flows to the connecting pipe 14 or the outer ring fire cover air outlet 121, it can quickly enter the connecting pipe 14 or the outer ring fire cover air outlet 121, reduce the turbulence of the airflow in the first air sub-cavity 12, and then reduce the vortex in the first air sub-cavity 12, which helps to reduce the wind resistance of the airflow and improve the airflow output efficiency.

[0073] In this embodiment, optionally, one end of the annular baffle 11 away from the first air inlet 15 is connected to one end of the main disc body away from the first air inlet 15 through a connecting wall 17, and the second inner ring fire cover outlet 111 is provided on the connecting wall 17. The second inner ring fire cover outlet 111 is a through hole that penetrates the connecting wall 17. When manufacturing the main disc body, an annular vertical wall 18 can be provided on the main disc body, and the annular vertical wall 18 is provided on one side end face of the main disc body away from the first air inlet 15. The connecting wall 17 is provided between the annular baffle 11 and the annular vertical wall 18. The second inner ring fire cover outlet 111 is located on the connecting wall 17 between the annular vertical wall 18 and the annular baffle 11. The annular vertical wall 18 can be used to connect the inner ring fire cover 40 to form a space for conveying the gas output from the second inner ring fire cover outlet 111 to the inner ring fire cover 40.

[0074] See also Figure 1 and Figure 3 In one embodiment of the present invention, the main plate body further includes a third air chamber 21, and the outer ring fire cover outlet 121 and the outer ring fire hole 51 of the outer ring fire cover 50 are respectively connected to the third air chamber 21. The third air chamber 21 is connected to the first air chamber 12, and after the airflow input through the first air inlet 15 enters the third air chamber 21, it can be mixed again in the third air chamber 21, thereby improving the combustion efficiency of the gas.

[0075] In this embodiment, the main disc body further comprises: an outer disc body 20, the outer disc body 20 is arranged around the outer periphery of the central disc body 10 and connected to the central disc body 10, and the third air distribution cavity 21 is arranged inside the outer disc body 20. The outer disc body 20 is used to provide a space for installing the outer ring fire cover 50. The third air distribution cavity 21 is a chamber arranged inside the outer disc body 20, and the outer ring fire hole 51 of the outer ring fire cover 50 is connected to the third air distribution cavity 21.

[0076] Optionally, in this embodiment, the main disk body further includes: a support portion 30, through which the outer disk body 20 is connected to the central disk body 10, and an air flow channel 31 is provided inside the support portion 30 to connect the third air distribution cavity 21 and the outer ring fire cover air outlet 121. There is a gap between the central disk body 10 and the outer disk body 20, and the support portion 30 is provided in the gap between the central disk body 10 and the outer disk body 20.

[0077] When the support portion 30 is provided, the gap between the central disk body 10 and the outer disk body 20 is increased. When the burner corresponding to the gas distribution disk is in a burning state, there is a gap between the middle ring flame formed by the inner ring flame cover 40 and the outer ring flame formed by the outer ring flame cover 50. Since the middle ring flame and the center flame gradually radiate to the periphery of the pot after acting on the bottom surface of the pot, the temperature of the area between the middle ring flame and the outer ring flame is relatively high. The radiation space is formed by the support portion 30, so that the heat formed by the middle ring flame and the center flame can be gradually radiated to the periphery of the pot, thereby avoiding the problem of excessively high local temperature at the bottom of the pot.

[0078] Further optionally, the number of the support parts 30 is multiple, and a secondary air supply inlet 32 ​​for supplying air to the inner ring fire cover 40 is formed between adjacent support parts 30. A secondary air supply inlet 32 ​​for supplying secondary air along the axial direction of the central disk body 10 is formed between adjacent support parts 30.

[0079] When the burner corresponding to the gas distribution plate is in operation, the outer ring fire cover 50 and the inner ring fire cover 40 form a high temperature area, which will block the air from being replenished from the side of the burner, and the resistance of air replenishing into the inner ring fire cover 40 along the radial direction of the central disk body 10 is relatively large. By forming a secondary air replenishment inlet 32 ​​for replenishing secondary air along the axial direction of the central disk body 10 between the support parts 30, more secondary air can be replenished into the inner ring fire cover 40, thereby helping to improve the gas utilization rate of the burner corresponding to the gas distribution plate.

[0080] The present invention provides an embodiment of a burner based on the above-mentioned gas distribution plate.

[0081] See also Figure 5 and Figure 6The burner includes a gas distribution plate as described in any of the above embodiments, and an inner ring fire cover 40, which is arranged on the main plate body of the gas distribution plate, and the inner ring fire cover 40 is formed with a first inner ring gas cavity 47 and a second inner ring gas cavity 48. The inner ring fire cover 40 is provided with a central fire hole 411 and a first side fire hole 441 connected to the first inner ring gas cavity 47, and the inner ring fire cover 40 is also provided with a second side fire hole 442 connected to the second inner ring gas cavity 48; the first inner ring fire cover gas outlet 131 of the gas distribution plate is connected to the first inner ring gas cavity 47, and the second inner ring fire cover gas outlet 111 of the gas distribution plate is connected to the second inner ring gas cavity 48. The central fire hole 411 is used to form a central flame, and the first side fire hole 441 and the second side fire hole 442 are used to form a mid-ring flame.

[0082] The central fire hole 411 and the first side fire hole 441 share the gas load of the first inner ring fire cover outlet 131, so that the gas load of the central fire hole 411 is less than the gas load of the first inner ring fire cover outlet 131, thereby making the central flame formed by the injection of the central fire hole 411 more stable. When manufacturing the inner ring fire cover 40, the diameter of the central fire hole 411 can be reduced accordingly, so that the central flame formed by the central fire hole 411 is smaller while achieving stable combustion of the central flame, thereby making it more suitable for extremely small fire combustion.

[0083] Since the gas sources of the first side fire hole 441 and the second side fire hole 442 are independent of each other, when controlling the operation of the burner, the flow rate of the gas sprayed from the second side fire hole 442 can be adjusted by adjusting the gas load of the second side fire hole 442, so that the airflow formed by the second side fire hole 442 can interact with the airflow sprayed from the first side fire hole 441, so that the combustion of the middle ring flame formed by the burner is more stable.

[0084] Since the gas load of the first side fire hole 441 is less than the gas load of the first inner ring fire cover outlet 131, the gas flow rate formed by the first side fire hole 441 is relatively smaller, so that the flame formed by it burns more stably. In the case where the flame formed by the first side fire hole 441 is relatively small, the effect of supplementing the middle ring flame can be achieved by adjusting the gas load of the second side fire hole 442, so that the middle ring flame can maintain a preset intensity without affecting the central flame, thereby achieving efficient use of the burner. When adjusting the intensity of the central flame, the middle ring flame can be supplemented by the second side fire hole 442, so that the central flame can be adjusted without affecting the overall intensity of the central ring flame.

[0085] Optionally, in this embodiment, the burner further comprises: an outer ring fire cover 50, which is mounted on the gas distribution plate, and the outer ring fire cover 50 is provided with an outer ring fire hole 51 connected to the outer ring fire cover gas outlet 121 of the gas distribution plate. The outer ring fire cover 50 cooperates with the gas distribution plate. When the gas distribution plate is provided with the outer plate body 20, the outer ring fire cover 50 is mounted on the outer plate body 20.

[0086] See also Figure 6 and Figure 7 In one embodiment of the present invention, the inner ring fire cover 40 includes: a top cover 41, the central fire hole 411 is arranged on the top cover 41; an inner ring wall 45, the inner ring wall 45 is formed with a central cavity 451; an outer ring wall 44, the top cover 41 is arranged on the outer ring wall 44, the outer ring wall 44 is installed on the main plate body of the gas distribution plate, the first side fire hole 441 and the second side fire hole 442 are arranged on the outer ring wall 44; and a connecting plate 46, one end of the connecting plate 46 is connected to the inner wall of the outer ring wall 44, and the other end is connected to the inner wall of the outer ring wall 44. The inner annular wall 45 is connected to one end close to the top cover 41, and the top cover 41, the outer annular wall 44 and the connecting plate 46 enclose the first inner annular gas chamber 47, and the first inner annular gas chamber 47 is connected to the first inner ring fire cover air outlet 131 through the central cavity 451, and the outer annular wall 44, the connecting plate 46, the inner annular wall 45 and the main disk body of the gas distribution disk enclose the second inner annular gas chamber 48, and the second inner ring fire cover air outlet 111 passes through the main disk body and is connected to the second inner ring gas chamber 48.

[0087] The inner ring wall 45 is arranged on the inner side of the outer ring wall 44, and the connecting plate 46 is arranged between the inner ring wall 45 and the outer ring wall 44. The central cavity 451 is a hollow cavity connected to the first inner ring gas cavity 47, and the central cavity 451 is connected to the first inner ring fire cover outlet 131, so that the central cavity 451 serves as the air inlet end of the first inner ring gas cavity 47, and the first side fire hole 441 and the central fire hole 411 are the air outlet ends of the first inner ring gas cavity 47. The second inner ring gas cavity 48 is an annular chamber arranged between the inner ring wall 45 and the outer ring wall 44, the second inner ring fire cover outlet 111 is the air inlet end of the second inner ring gas cavity 48, and the second side fire hole 442 is the air outlet end of the second inner ring gas cavity 48. The first inner ring gas cavity 47 and the second inner ring gas cavity 48 are arranged independently of each other and have independent air inlet sources.

[0088] The central fire hole 411 may be a plurality of through holes spaced apart in the middle of the top cover 41, and arranged opposite to the central cavity 451, so that the airflow output by the first inner ring fire cover 40 can be transported toward the central fire hole 411. The first side fire hole 441 is arranged on one side of the outer ring wall 44 close to the top cover 41, and the first side fire hole 441 and the second side fire hole 442 are distributed in an annular shape on the outer ring wall 44.

[0089] Since the gas sources of the first inner ring gas chamber 47 and the second inner ring gas chamber 48 are independent of each other, when adjusting the gas load of the first inner ring gas chamber 47 or the second inner ring gas chamber 48, the two do not affect each other, and thus the central flame formed by the central fire hole 411 and the middle ring flame formed by the first side fire hole 441 and the second side fire hole 442 can be independently adjusted, so that the flame formed by the inner ring fire cover 40 has higher controllability. When adjusting the gas load of the first inner ring gas chamber 47 or the second inner ring gas chamber 48, the flow rate of the airflow formed by the first side fire hole 441 and the second side fire hole 442 will change, and the interaction of airflows of different flow rates can help improve the stability of the flame formed by the combustion of the airflow.

[0090] The first side fire hole 441 and the second side fire hole 442 can be staggered with each other so that the airflows formed by the first side fire hole 441 and the second side fire hole 442 are staggered with each other, so that the airflows are mixed more evenly with the air outside the burner, which helps to improve the combustion efficiency of the gas. The axial directions of the first side fire hole 441 and the second side fire hole 442 can be set at an angle so that the directions of the airflows formed in the first side fire hole 441 and the second side fire hole 442 are inconsistent, so that the gas can be mixed more fully with the air. Under the interaction of airflows in different directions, the middle ring flame formed by the first side fire hole 441 and the second side fire hole 442 can be made more stable.

[0091] Since the gas load of the first inner ring gas cavity 47 is shared by the first side fire hole 441 and the central fire hole 411 at the same time, the gas load of the first side fire hole 441 and the central fire hole 411 are both less than the gas load at the first inner ring fire cover outlet 131, thereby improving the stability of the flame formed by the first side fire hole 441 and the central fire hole 411. Under the action of the first side fire hole 441, the gas load of the central fire hole 411 is reduced, and then the diameter of the central fire hole 411 can be made smaller as needed, so that the central flame formed by it is smaller, and it can also have good stability in the extremely small fire combustion state.

[0092] See also Figure 8In one embodiment of the present invention, the inner ring fire cover 40 further includes: a fixed net 42, installed on the side of the top cover 41 facing away from the first inner ring gas chamber 47; and an infrared combustion plate 43, installed between the fixed net 42 and the top cover 41. The infrared combustion plate 43 is used to form an infrared combustion state on the inner ring fire cover 40, thereby improving the heating efficiency of the burner, reducing the heat energy loss of the burner, and reducing the emission of harmful substances.

[0093] The burner also includes other functional components adapted to the infrared combustion plate 43, which can be referred to in the prior art. The fixed net 42 can be a steel net, which is used to define the position of the infrared combustion plate 43. The top cover 41 can be detachably connected to the outer ring wall 44 to facilitate installation and cleaning.

[0094] See also Figure 7 and Figure 8 In one embodiment of the present invention, the outer ring wall 44 is provided with a flame stabilizing hole 444 connected to the second inner ring gas chamber 48. The flame stabilizing hole 444 can be used to share the gas pressure of the second inner ring gas chamber 48 to improve the stability of the flame formed by the second side fire hole 442 and avoid flame separation.

[0095] Since the first inner ring gas chamber 47 is not affected when the gas pressure of the second inner ring gas chamber 48 is adjusted, when the airflow formed by the injection of the flame stabilizing hole 444 interacts with the second side fire hole 442 or the first side fire hole 441, the gas load of the central fire hole 411 and the first side fire hole 441 is completely unaffected, so that the flame stabilizing hole 444 can be adjusted along with the adjustment of the gas load of the first inner ring gas chamber 47, so that the flame stabilizing hole 444 can be adapted and adjusted to each other with the first side fire hole 441 and the second side fire hole 442.

[0096] Optionally, in this embodiment, a flame stabilizing groove 443 is provided on the outer periphery of the outer ring wall 44; one end of the flame stabilizing hole 444 away from the second inner ring combustion chamber 48 is connected to the flame stabilizing groove 443. When the airflow is transported from the flame stabilizing hole 444 to the flame stabilizing groove 443, it can be output in a dispersed state under the action of the flame stabilizing groove 443, so that the flame stabilizing airflow can fully act on the first side fire hole 441 or the second side fire hole 442, so as to improve the flame stabilizing efficiency.

[0097] In another embodiment of the present invention, the flame stabilizing groove 443 is connected to the interior of the second side fire hole 442 through a through hole. The through hole is used to guide the gas in the second side fire hole 442 to the flame stabilizing groove 443, thereby reducing the gas load of the second side fire hole 442, so that the flame formed by the jet combustion of the second side fire hole 442 remains stable and avoids flame separation.

[0098] See also Figure 7 and Figure 8 In one embodiment of the present invention, a guide wall 49 is provided between the inner ring wall 45 and the connecting plate 46, one end of the guide wall 49 is connected to the inner ring wall 45, and the other end is connected to an end of the connecting plate 46 away from the outer ring wall 44; a first guide slope 491 for guiding the airflow of the central cavity 451 toward the first side fire hole 441 is formed on a surface of the guide wall 49 on one side facing the first inner ring gas cavity 47; the first guide slope 491 is inclined and faces the top cover 41, so that part of the airflow entering the first inner ring gas cavity 47 from the central cavity 451 can be guided toward the first side fire hole 441 along the first guide slope 491.

[0099] The central cavity 451 is arranged opposite to the central fire hole 411. By arranging the first guide slope 491, part of the airflow entering the first inner ring combustion cavity 47 is directly delivered to the central fire hole 411, and part of the airflow flowing along the guide pipe 13 can be guided along the first guide slope 491 toward the first side fire hole 441, thereby avoiding the problem of vortex caused by excessive wind resistance when the airflow acts on the top cover 41, and thereby allowing the airflow to be evenly output from the central fire hole 411 and the first side fire hole 441. By guiding the airflow, the airflow can be output according to a preset path, so that the airflow formed by the first side fire hole 441 and the central fire hole 411 is more evenly distributed, thereby making the flame more stable.

[0100] In another embodiment of the present invention, a second guide slope 492 for guiding the airflow of the second inner ring gas cavity 48 toward the second side fire hole 442 is formed on a side surface of the guide wall 49 facing the second inner ring gas cavity 48. The second guide slope 492 is used to guide the airflow entering the second inner ring gas cavity 48 toward the second side fire hole 442, so as to prevent the airflow from being output from the second inner fire cover outlet to the connecting plate 46, thereby preventing the formation of vortex at the connecting plate 46, which causes the problem of increased wind resistance at one end of the second side fire hole 442 close to the second inner ring gas cavity 48.

[0101] Based on the above burner, the present invention provides an embodiment of a gas cooker.

[0102] The gas cooker comprises a burner as described in any of the above embodiments.

[0103] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A gas distribution plate for a burner having an inner ring fire cover and an outer ring fire cover, wherein the outer ring fire cover has an outer ring fire hole, and the inner ring fire cover has a central fire hole, a first side fire hole and a second side fire hole, characterized in that: The gas distribution plate comprises: A main plate body, wherein the main plate body is formed with a first air sub-cavity and a second air sub-cavity, and the main plate body is provided with a first air inlet and an outer ring fire cover air outlet respectively connected with the first air sub-cavity, and the outer ring fire cover air outlet is connected with the outer ring fire hole of the outer ring fire cover; and A guide pipe is arranged on the main disk body, one end of which is connected to the first air sub-cavity, and the other end is formed with a first inner ring fire cover air outlet respectively connected to the central fire hole and the first side fire hole of the inner ring fire cover; the main disk body is also provided with a second air inlet and a second inner ring fire cover air outlet respectively connected to the second air sub-cavity, the second inner ring fire cover air outlet is connected to the second side fire hole of the inner ring fire cover, and the first air inlet and the second air inlet are arranged towards the same side of the main disk body.

2. The gas distribution plate according to claim 1, characterized in that: The main disk body comprises: A central disk, one end of which forms the first air inlet, the other end of which forms the second inner ring fire cover air outlet, and the outer ring fire cover air outlet is formed on the central disk; and An annular baffle is arranged in the central disk body, the first air division cavity is formed between the annular baffle and the central disk body, the second air division cavity is formed in the annular baffle, the second air inlet is formed at one end of the annular baffle facing the first air inlet, and the end of the annular baffle away from the first air inlet is connected to the second inner ring fire cover outlet.

3. The gas distribution plate according to claim 2, characterized in that: The guide pipe is arranged inside the annular partition, and one end of the guide pipe away from the first inner ring fire cover air outlet passes through the side wall of the annular partition and is connected with the first air distribution cavity.

4. The gas distribution plate according to claim 3, characterized in that: The central disk also includes a connecting pipe, one end of which is connected to an end of the guide pipe away from the first inner ring fire cover outlet, and the other end of which passes through the side wall of the annular partition and is connected to the first air distribution cavity.

5. The gas distribution plate according to any one of claims 2 to 4, characterized in that: The main disk body also includes a third air distribution cavity, and the air outlet of the outer ring fire cover and the outer ring fire hole of the outer ring fire cover are respectively connected to the third air distribution cavity.

6. The gas distribution plate according to claim 5, characterized in that: The main disk body also includes: The outer disc body is arranged around the outer periphery of the central disc body and connected with the central disc body, and the third air dividing cavity is arranged inside the outer disc body.

7. The gas distribution plate according to claim 6, characterized in that: The main disk body also includes: The outer disk is connected to the central disk through the support part, and an air flow channel connecting the third air distribution cavity and the air outlet of the outer ring fire cover is arranged inside the support part.

8. The gas distribution plate according to claim 7, characterized in that: There are multiple support parts, and secondary air supply inlets for supplying air to the inner fire ring cover are formed between adjacent support parts.

9. The gas distribution plate according to any one of claims 2 to 4, characterized in that: One end of the annular partition away from the first air inlet is connected to one end of the main disk body away from the first air inlet through a connecting wall, and the second inner ring fire cover air outlet is arranged on the connecting wall.

10. A burner, characterized in that: comprising a gas distribution plate as claimed in any one of claims 1 to 9, and An inner ring fire cover is arranged on the main plate body of the gas distribution plate, the inner ring fire cover is formed with a first inner ring gas cavity and a second inner ring gas cavity, the inner ring fire cover is provided with a central fire hole and a first side fire hole connected to the first inner ring gas cavity, and the inner ring fire cover is also provided with a second side fire hole connected to the second inner ring gas cavity; The first inner ring fire cover gas outlet of the gas distribution plate is communicated with the first inner ring gas cavity, and the second inner ring fire cover gas outlet of the gas distribution plate is communicated with the second inner ring gas cavity.

11. The burner according to claim 10, characterized in that The inner ring fire cover comprises: A top cover, wherein the central fire hole is arranged on the top cover; An inner annular wall, wherein the inner annular wall forms a central cavity; an outer annular wall, the top cover is arranged on the outer annular wall, the outer annular wall is installed on the main plate body of the gas distribution plate, and the first side fire hole and the second side fire hole are arranged on the outer annular wall; and A connecting plate, one end of which is connected to the inner wall of the outer ring wall, and the other end is connected to one end of the inner ring wall close to the top cover, the top cover, the outer ring wall and the connecting plate together form the first inner ring gas cavity, the first inner ring gas cavity is communicated with the first inner ring fire cover outlet through the central cavity, the outer ring wall, the connecting plate, the inner ring wall and the main disk body of the gas distribution disk together form the second inner ring gas cavity, the second inner ring fire cover outlet passes through the main disk body and is communicated with the second inner ring gas cavity.

12. The burner according to claim 11, characterized in that The outer ring wall is provided with a flame stabilizing hole connected to the second inner ring combustion chamber.

13. The burner according to claim 12, characterized in that The outer periphery of the outer ring wall is provided with a flame stabilizing groove; One end of the flame stabilizing hole away from the second inner ring combustion chamber is connected to the flame stabilizing groove, and / or the flame stabilizing groove is connected to the interior of the second side fire hole through a through hole.

14. The burner according to any one of claims 11 to 13, characterized in that A guide wall is provided between the inner annular wall and the connecting plate, one end of the guide wall is connected to the inner annular wall, and the other end is connected to an end of the connecting plate away from the outer annular wall; A first guide slope is formed on one side surface of the guide wall facing the first inner ring gas cavity, which is used to guide the airflow in the central cavity toward the first side fire hole; and / or, a second guide slope is formed on one side surface of the guide wall facing the second inner ring gas cavity, which is used to guide the airflow in the second inner ring gas cavity toward the second side fire hole.

15. The burner according to any one of claims 11 to 13, characterized in that The inner ring fire cover also includes: A fixed net is installed on a side of the top cover facing away from the first inner ring gas chamber; and The infrared combustion plate is installed between the fixed net and the top cover.

16. The burner according to any one of claims 10 to 13, characterized in that The burner also includes: The outer ring fire cover is installed on the gas distribution plate, and the outer ring fire cover is provided with an outer ring fire hole connected to the outer ring fire cover air outlet of the gas distribution plate.

17. A gas cooker, characterized in that: The gas cooker comprises the burner according to any one of claims 10 to 16.

Images