CN224018398U

CN224018398U - Flat plate type burner and flat plate type gas stove

Info

Publication number: CN224018398U
Application number: CN202520399234.1U
Authority: CN
Inventors: 刘昌文; 刘汉臣; 高民
Original assignee: Hisense Shandong Kitchen and Bathroom Co Ltd
Current assignee: Hisense Shandong Kitchen and Bathroom Co Ltd
Priority date: 2025-03-07
Filing date: 2025-03-07
Publication date: 2026-03-20
Anticipated expiration: 2035-03-07

Abstract

This application provides embodiments related to stove technology, offering a flat-plate burner and a flat-plate gas stove. The flat-plate burner includes a burner head; at least one burner cap disposed on the top of the burner head; the burner cap includes: a first flame outlet section, the top wall of which has multiple first flame ports; and a second flame outlet section connected to the first flame outlet section, located around the periphery of the first flame outlet section, with the top wall of the second flame outlet section being higher than that of the first flame outlet section, and the top wall of the second flame outlet section having multiple second flame ports. The flat-plate burner and flat-plate gas stove provided by this application have better secondary air replenishment and produce less smoke during combustion.

Description

Flat plate type burner and flat plate type gas stove

Technical Field

The embodiment of the application relates to the technical field of stoves, in particular to a flat plate type combustor and a flat plate type gas stove.

Background

A gas range is a common kitchen device for cooking food. It heats the cookware by burning natural gas, liquefied petroleum gas or other combustible gases to produce a flame.

In the related art, the flat plate type gas stove comprises a flat plate type burner, wherein the flat plate type burner comprises a burner head, an inner fire plate and an outer fire plate, a plurality of first fire holes are formed in the top of the inner fire plate, and a second fire hole is formed in the top of the outer fire plate.

However, the secondary air has poor supplementing effect, and the flue gas generated by the combustion of the burner is more.

Disclosure of utility model

The embodiment of the application provides a flat plate type burner and a flat plate type gas stove, which have better secondary air supplementing effect and less smoke during combustion.

In a first aspect, an embodiment of the present application provides a flat plate burner, comprising:

a burner;

at least one fire cover arranged at the top of the furnace end, wherein the fire cover comprises:

the top wall of the first fire outlet part is provided with a plurality of first fire ports;

The second goes out fire portion, and the second goes out fire portion and first fire portion to be connected, and the second goes out fire portion and is located the week side of first fire portion, and the roof height of second fire portion is higher than the roof height of first fire portion, and the roof of second fire portion is provided with a plurality of second fire mouths.

The application provides a flat plate type burner which comprises a burner, at least one fire cover and a fire cover arranged at the top of the burner. The fire cover comprises a first fire outlet part and a second fire outlet part. The roof of first play fire portion is provided with a plurality of first fire mouths. The second goes out fire portion and is connected with first fire portion, and the second goes out fire portion is located the week side of first fire portion, and the roof height of second fire portion is higher than the roof height of first fire portion, and the roof of second fire portion is provided with a plurality of second fire mouths. Therefore, the first fire port and the second fire port are positioned on the horizontal planes with different heights, the secondary air supplement and the fluidity are good, and the first fire port can also obtain more secondary air supplement, so that the flat plate type burner has good combustion effect and less smoke. Moreover, the top wall of the second flame discharging part is higher than the top wall of the first flame discharging part, and the inner flame can be realized by forming the height difference.

In some embodiments, the top wall height of the second firestop portion is greater than the top wall height of the first firestop portion by a value greater than 3mm and less than 5mm.

When the top wall height of the second fire outlet part is higher than that of the first fire outlet part by a value smaller than 3mm, the first fire outlet can obtain less secondary air, the flue gas is higher, and the combustion effect is poorer. When the top wall height of the second fire outlet part is higher than the top wall height of the first fire outlet part by a value larger than 5mm, the distance between the first fire port and the cooker is larger, and the heat transfer efficiency is poorer.

In some embodiments, the number of fire covers is at least two, the at least two fire covers including an inner fire cover and an outer fire cover, the outer fire cover being located on a peripheral side of the inner fire cover;

the top wall of the second fire outlet part in the inner fire cover is different from the top wall of the second fire outlet part in the outer fire cover in height.

Thus, the second fire outlet part in the inner fire cover and the second fire outlet part in the outer fire cover form a height difference, the secondary air supplement and the fluidity are good, and more secondary air supplement can be obtained by the fire hole on the inner fire cover, so that the flat plate type burner has good combustion effect and less smoke.

In some embodiments, the top wall height of the second fire exit in the inner fire cover is higher than the top wall height of the second fire exit in the outer fire cover.

Therefore, the distance between the fire hole on the inner fire cover and the cooker is smaller, and the heat transfer efficiency is higher.

In some embodiments, the top wall height of the second fire exit in the inner fire cover is greater than the top wall height of the second fire exit in the outer fire cover by a value greater than 3mm and less than 5mm.

When the top wall height of the second fire outlet part in the inner fire cover is higher than that of the second fire outlet part in the outer fire cover by a value smaller than 3mm, the amount of secondary air supplement available to the first fire port of the inner fire cover is less, the flue gas is higher, and the combustion effect is poorer. When the top wall height of the second fire outlet part in the inner fire cover is higher than the top wall height of the second fire outlet part in the outer fire cover by a value larger than 5mm, the distance between the first fire port of the outer fire cover and the cooker is larger, and the heat transfer efficiency is poorer.

In some embodiments, the first fire port has an opening area that is greater than an opening area of the second fire port.

Thus, the first fire hole is close to the outer side, the secondary air supplementing effect is good, and the requirement of high firepower is met. Therefore, the opening area of the first fire port is larger than that of the second fire port, which is beneficial to improving combustion efficiency. Moreover, the opening area of the first fire port is larger than that of the second fire port, so that the flame height of the second fire port is improved, the consistency of the flame heights of the first fire port and the second fire port is improved, and the panel combustion performance of the fire disc is improved.

In some embodiments, the first fire port is circular;

the second fire port is larger than the second fire port along the second fire outlet part.

Like this, the secondary air of first burner is less, adopts the round hole structure, and its injection is better with secondary air supplement effect, and is higher to the utilization ratio of secondary air. The secondary air of the second fire hole is more sufficient, and the strip fire hole structure is adopted, so that the requirement of high firepower is met.

In some embodiments, the plurality of first fire ports are spaced apart along the circumference of the first fire exit portion;

And/or, the plurality of first fire ports are arranged along the circumferential direction and the radial direction of the first fire outlet part in an array manner.

Thus, the number of the first fire ports is increased.

In some embodiments, the plurality of second fire ports are spaced apart along the circumference of the second fire exit portion.

Thus, the number of the second fire ports is increased.

In a second aspect, an embodiment of the present application provides a flat-plate gas stove, including a body and the above-mentioned flat-plate burner, where the flat-plate burner is connected to the body.

Therefore, when the flat plate type gas stove is used, the secondary air supplementing effect is good, and the smoke is less.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a flat plate type gas stove according to an embodiment of the present application;

FIG. 2 is a schematic view of a flat plate burner according to an embodiment of the present application;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 4;

FIG. 6 is a partial enlarged view at B in FIG. 5;

FIG. 7 is a schematic view of the structure of an outer fire cover in a flat plate burner according to an embodiment of the present application;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a schematic view of the structure of an inner fire cover in a flat plate burner according to an embodiment of the present application;

fig. 10 is a top view of fig. 9.

Reference numerals illustrate:

100-liquid containing plate;

200-flat plate burner;

210-furnace end;

220-fire cover;

221-inner fire cover;

222-an outer fire cover;

223-first fire part;

224—a first fire port;

225-a second fire outlet;

226-second fire port.

Detailed Description

In the related art, the fire cover in the flat plate burner has a large number of fire openings, the fire openings of the fire cover are positioned on the same plane, the secondary air supplement and the fluidity are poor, the secondary air supplement of the fire openings in the middle position is less, the flue gas is high, and the combustion effect is poor.

In order to solve the technical problems, the application provides a flat plate type burner, which comprises a burner, at least one fire cover and a fire cover arranged at the top of the burner. The fire cover comprises a first fire outlet part and a second fire outlet part. The roof of first play fire portion is provided with a plurality of first fire mouths. The second goes out fire portion and is connected with first fire portion, and the second goes out fire portion is located the week side of first fire portion, and the roof height of second fire portion is higher than the roof height of first fire portion, and the roof of second fire portion is provided with a plurality of second fire mouths. Therefore, the first fire port and the second fire port are positioned on the horizontal planes with different heights, the secondary air supplement and the fluidity are good, and the first fire port can also obtain more secondary air supplement, so that the flat plate type burner has good combustion effect and less smoke. Moreover, the top wall of the second flame discharging part is higher than the top wall of the first flame discharging part, and the inner flame can be realized by forming the height difference.

For the purposes of making the objects, embodiments and advantages of the present application more apparent, an exemplary embodiment of the present application will be described more fully hereinafter with reference to the accompanying drawings in which exemplary embodiments of the application are shown, it being understood that the exemplary embodiments described are merely some, but not all, of the examples of the application.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Fig. 1 is a schematic structural view of a flat plate type gas stove according to an embodiment of the present application.

Referring to fig. 1, an embodiment of the present application provides a flat plate type gas range. As the surface of the burner in the flat plate type gas stove is flat, the flame can be better and evenly distributed at the bottom of the cooker, even heat output can be provided, and the cooking effect is improved.

In some embodiments, a flat plate gas stove includes a body.

In some embodiments, the flat gas stove includes a flat burner 200. The flat plate burner 200 is connected to the body.

The number of the flat plate burner 200 is at least one. The flat-plate burner 200 provided in this embodiment may be a common flat-plate burner or an anti-dry flat-plate burner, and therefore, the type of the flat-plate burner 200 is not particularly limited.

In some embodiments, the number of flat plate burners 200 is at least two, with at least two flat plate burners 200 being spaced apart.

Illustratively, the number of flat plate burners 200 may be one, two, three, four, etc.

In some embodiments, the body includes a housing that can function to house and protect other devices.

In some embodiments, the housing includes a bottom shell. Wherein, the drain pan encloses the installation cavity that has the opening. The mounting cavity may be used to house components of the flat panel burner 200, etc.

Specifically, in some embodiments, the bottom chassis may include side plates and a bottom plate. The side plate is arranged on one side of the bottom plate and surrounds one circle of the bottom plate. The bottom plate and the side plates enclose the mounting cavity.

Illustratively, the bottom and side panels may enclose a rectangular parallelepiped-shaped mounting cavity. It will be appreciated that the shape of the mounting cavity may be designed according to the actual situation and is not further limited herein.

In some embodiments, the housing comprises a panel. The panels may be used to carry and support articles.

The panel cover is arranged at the top of the bottom shell, and the panel is used for covering part of the opening of the mounting cavity.

Wherein the flat plate burner 200 is embedded in the top of the housing. Specifically, the panel is provided with an avoidance port for avoiding the flat plate burner 200. The dodging port may be used to place the flat burner 200 such that the flat burner 200 can heat the cookware.

In some embodiments, the panel has a touch area thereon. The touch control area can be used for performing operations such as switch control, fire adjustment, function selection and the like on the flat plate type gas stove. The touch control area of the panel can enable a user to conveniently operate the flat plate type gas stove, and intelligent operation of the flat plate type gas stove is achieved.

In some embodiments, the body includes a energy concentrating pan support. The energy collecting tray pot support can play a role in collecting energy and supporting a pot.

Wherein, the energy collecting tray pot support is sleeved outside the flat plate type burner 200, and the energy collecting tray pot support is arranged at the top of the shell. The bottom of the energy-collecting tray pot bracket is abutted with the top of the shell.

In some embodiments, the body includes a tray 100. The tray 100 can direct liquid that splashes out during cooking to the top wall of the housing, thereby effectively preventing liquid from entering the interior of the housing.

Wherein, the liquid containing disc 100 is sleeved outside the flat plate type burner 200, and the liquid containing disc 100 is embedded at the top of the shell.

Fig. 2 is a schematic structural view of a flat plate burner according to an embodiment of the present application, and fig. 3 is an exploded view of fig. 2.

Referring to fig. 2 and 3, an embodiment of the present application provides a flat plate burner 200, and the burner 200 may be used to generate flame and heat to heat a pot.

In some embodiments, flat panel combustor 200 includes a burner 210.

In some embodiments, flat panel combustor 200 includes at least one fire cover 220.

Wherein a fire cover 220 is provided on top of the burner 210.

It should be noted that the number of fire covers 220 may be one, two, three, or the like.

Fig. 4 is a top view of fig. 2, and fig. 5 is a cross-sectional view taken along A-A in fig. 4. Fig. 6 is a partial enlarged view at B in fig. 5.

Referring to fig. 4-6, in some embodiments, the fire cover 220 includes a first fire exit 223.

Wherein, the top wall of the first fire outlet 223 is provided with a plurality of first fire ports 224. The first fire ports 224 are disposed at intervals.

In some embodiments, fire cover 220 includes a second fire out 225.

The second fire discharging portion 225 is connected to the first fire discharging portion 223, the second fire discharging portion 225 is located at a peripheral side of the first fire discharging portion 223, and a top wall of the second fire discharging portion 225 is higher than a top wall of the first fire discharging portion 223.

The top wall of the second fire outlet portion 225 is provided with a plurality of second fire ports 226. The plurality of second fire ports 226 are spaced apart.

Thus, since the first fire port 224 and the second fire port 226 are located on the horizontal planes of different heights, the secondary air supplement and the fluidity are better, and the first fire port 224 can also obtain more secondary air supplement, so that the flat plate burner 200 has better combustion effect and less smoke. Also, the top wall of the second flame discharging part 225 is higher than the top wall of the first flame discharging part 223, and forming a height difference may achieve an inner flame effect.

In some embodiments, the fire cover 220 forms the second fire portion 225 and the first fire portion 223 by punching.

It will be appreciated that the second flame-out portion 225 and the first flame-out portion 223 in the present embodiment are formed to be bent as compared with the flame cover 220 in the related art, so that the mechanical strength and stress of the flame cover 220 can be increased, the disposition of the reinforcing structure can be reduced, and thus the areas of the first flame ports 224 and the second flame ports 226 can be increased.

Note that, the number of the first fire ports 224 and the second fire ports 226 is not specifically limited in this embodiment.

Referring to fig. 6, in some embodiments, the top wall height of the second fire portion 225 is greater than the value d of the top wall height of the first fire portion 223 by more than 3mm and less than 5mm.

When the value d of the top wall height of the second fire outlet portion 225 higher than the top wall height of the first fire outlet portion 223 is smaller than 3mm, the amount of secondary air supplement available from the first fire outlet portion 224 is smaller, the flue gas is higher, and the combustion effect is poorer.

When the top wall height of the second fire discharging portion 225 is greater than the value d of the top wall height of the first fire discharging portion 223 by more than 5mm, the distance between the first fire port 224 and the cooker is large, and the heat transfer efficiency is poor.

Illustratively, the top wall height of the second flame out 225 may be 3.5mm, 4mm, or 4.5mm, which is a value d higher than the top wall height of the first flame out 223.

In some embodiments, the number of fire covers 220 is at least two.

The at least two fire covers 220 include an inner fire cover 221 and an outer fire cover 222, the outer fire cover 222 being located at a circumferential side of the inner fire cover 221.

Wherein the top wall height of the second fire discharging portion 225 in the inner fire cover 221 is different from the top wall height of the second fire discharging portion 225 in the outer fire cover 222.

It can be appreciated that the second fire discharging portion 225 in the inner fire cover 221 and the second fire discharging portion 225 in the outer fire cover 222 form a height difference, so that the secondary air is better in supplement and fluidity, and more secondary air is obtained from the fire hole on the inner fire cover 221, so that the flat plate burner 200 has better combustion effect and less smoke.

In some embodiments, the top wall height of the second fire exit 225 in the inner fire cover 221 is lower than the top wall height of the second fire exit 225 in the outer fire cover 222.

In some embodiments, the top wall height of the second fire exit 225 in the inner fire cover 221 is higher than the top wall height of the second fire exit 225 in the outer fire cover 222.

Thus, the distance between the fire hole on the inner fire cover 221 and the cooker is smaller, and the heat transfer efficiency is higher.

In some embodiments, the top wall height of the second fire exit 225 in the inner fire cover 221 is greater than the top wall height of the second fire exit 225 in the outer fire cover 222 by a value greater than 3mm and less than 5mm.

When the top wall height of the second fire outlet portion 225 in the inner fire cover 221 is higher than the top wall height of the second fire outlet portion 225 in the outer fire cover 222 by a value smaller than 3mm, the amount of secondary air supplement available to the first fire port 224 of the inner fire cover 221 is smaller, the flue gas is higher, and the combustion effect is worse.

When the top wall height of the second fire outlet 225 in the inner fire cover 221 is greater than 5mm, the distance between the first fire port 224 of the outer fire cover 222 and the pot is greater, and the heat transfer efficiency is poor.

The top wall height of the second fire escape 225 in the exemplary inner fire cover 221 may be 3.5mm, 4mm, or 4.5mm higher than the top wall height of the second fire escape 225 in the outer fire cover 222.

Fig. 7 is a schematic structural view of an outer fire cover in a flat plate burner according to an embodiment of the present application, fig. 8 is a top view of fig. 7, fig. 9 is a schematic structural view of an inner fire cover in a flat plate burner according to an embodiment of the present application, and fig. 10 is a top view of fig. 9.

Referring to fig. 7-9, in some embodiments, the opening area of the first flame ports 224 is greater than the opening area of the second flame ports 226.

It will be appreciated that the primary air ports 224 are located closer to the outer side, and the secondary air is more effective in supplementing the primary air, thus realizing the need for high fire power. Therefore, the opening area of the first flame ports 224 is larger than that of the second flame ports 226, which is advantageous for improving combustion efficiency. Moreover, the opening area of the first fire hole 224 is larger than that of the second fire hole 226, so that the flame height of the second fire hole 226 is improved, the consistency of the flame heights of the first fire hole 224 and the second fire hole 226 is improved, and the panel combustion performance of the fire disc is improved.

Referring to fig. 7-9, in some embodiments, the first flame ports 224 are circular.

In some embodiments, the size of the second fire port 226 along the radial direction of the second fire exit 225 is greater than the size of the second fire port 226 along the circumferential direction of the second fire exit 225.

Specifically, the second flame ports 226 are elongated.

It can be appreciated that the secondary air of the first fire hole 224 is less, and the circular hole structure is adopted, so that the injection and secondary air supplementing effects are better, and the utilization rate of the secondary air is higher. The secondary air of the second fire hole 226 is more sufficient, and the strip fire hole structure is adopted, so that the requirement of high firepower is met.

Since the first flame discharging portion 223 and the second flame discharging portion 225 of the flame cover have a height difference, the second flame port 226 is cut by a turning tool, and the first flame port 224 is processed by a drilling method. Compared with the processing mode of all turning tool grooving in the related art, the processing technology and the implementation path of the fire cover provided by the application are simpler.

In some embodiments, the plurality of first fire ports 224 are disposed at intervals along the circumference of the first fire outlet 223. In this way, the number of first ports 224 provided is advantageously increased.

Specifically, the first fire ports 224 on the inner fire pan are disposed at intervals along the circumferential direction of the first fire outlet 223.

In some embodiments, the plurality of first fire ports 224 are arranged in a circumferential and radial array of the first fire outlet 223. In this way, the number of first ports 224 provided is advantageously increased.

Specifically, the first fire ports 224 on the outer fire pan are arranged in a circumferential and radial array of the first fire outlet portions 223.

In some embodiments, the plurality of second flame ports 226 are spaced apart along the circumference of the second flame out portion 225. In this way, the number of the second ports 226 is advantageously increased.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.

It should be readily understood that "on," "above," and "above" in the present application should be interpreted in the broadest sense so that "on" means not only "directly on something," but also includes the meaning of "on something" with intermediate features or layers therebetween, and "on" or "above" includes the meaning of not only "on something" or "above," but also "above" and may include the meaning of "on something" or "above" with no intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. The illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A flat-plate burner, characterized in that it comprises:

Stove head (210);

At least one burner cap (220) is disposed on top of the burner head (210); the burner cap (220) comprises:

The first fire outlet (223) has a plurality of first fire holes (224) on its top wall.

The second fire outlet (225) is connected to the first fire outlet (223). The second fire outlet (225) is located on the periphery of the first fire outlet (223). The height of the top wall of the second fire outlet (225) is higher than that of the top wall of the first fire outlet (223). The top wall of the second fire outlet (225) is provided with a plurality of second fire ports (226).

2. The flat-plate burner according to claim 1, wherein the height of the top wall of the second flame outlet (225) is greater than the height of the top wall of the first flame outlet (223) by a value greater than 3 mm and less than 5 mm.

3. The flat-plate burner according to claim 1 or 2, characterized in that the number of the flame caps (220) is at least two, and the at least two flame caps (220) include an inner flame cap (221) and an outer flame cap (222), wherein the outer flame cap (222) is located around the inner flame cap (221);

The height of the top wall of the second flame outlet (225) in the inner flame cover (221) is different from the height of the top wall of the second flame outlet (225) in the outer flame cover (222).

4. The flat-plate burner according to claim 3, characterized in that the top wall height of the second flame outlet (225) in the inner flame cover (221) is higher than the top wall height of the second flame outlet (225) in the outer flame cover (222).

5. The flat-plate burner according to claim 3, wherein the height of the top wall of the second flame outlet (225) in the inner flame cover (221) is greater than the height of the top wall of the second flame outlet (225) in the outer flame cover (222) by a value greater than 3 mm and less than 5 mm.

6. The flat-plate burner according to claim 1 or 2, characterized in that the opening area of the first burner (224) is greater than the opening area of the second burner (226).

7. The flat-plate burner according to claim 1 or 2, characterized in that the first burner opening (224) is circular;

The radial dimension of the second fire port (226) along the second fire outlet (225) is greater than the circumferential dimension of the second fire port (226) along the second fire outlet (225).

8. The flat-plate burner according to claim 1 or 2, characterized in that a plurality of the first fire ports (224) are arranged at circumferential intervals along the first fire outlet (223);

Alternatively, multiple first fire ports (224) are arranged in a circumferential and radial array along the first fire outlet (223).

9. The flat-plate burner according to claim 1 or 2, characterized in that a plurality of second fire ports (226) are arranged at circumferential intervals along the second fire outlet (225).

10. A flat-plate gas stove, characterized in that it comprises a body and at least one flat-plate burner as described in any one of claims 1 to 9, wherein the flat-plate burner is connected to the body.