CN115681967A - Gas kitchen ranges - Google Patents

Abstract

The application relates to the technical field of gas cookers and discloses a gas stove. The gas range includes: a plurality of fire covers, each fire cover having a fire hole; the radiant layer is provided with mounting holes, the number of the mounting holes is equal to that of the fire covers, the fire covers correspond to one another, any fire cover is located in one mounting hole, and a secondary air diversion channel for communicating the fire holes located in the mounting holes and the outside is formed between the outer wall surface of each fire cover and the inner wall surface of the hole wall of each mounting hole. A secondary air guide channel is formed between the outer wall surface of the fire cover and the inner wall surface of the hole wall of the mounting hole, and external air flows to the fire hole through the secondary air guide channel to supplement secondary air for the fire hole, so that the combustion effect of gas at the fire hole is improved, and the heat efficiency of the gas stove is improved. Because each fire cover is positioned in one mounting hole, each fire cover is provided with a corresponding secondary air diversion channel, so that the fire holes of each fire cover can supplement air through the secondary air diversion channels, and the heat efficiency of the gas stove is further improved.

Description

Gas kitchen ranges

Technical Field

The application relates to the technical field of gas cookers, in particular to a gas stove.

Background

The heat exchange mode of the existing gas stove and cooker mainly comprises three types of heat radiation, heat convection and heat conduction, wherein the heat convection has the highest ratio. The air-fuel (air and gas) mixed gas flowing out of the inner fire hole and/or the outer fire hole is ignited to form gas in a combustion state; the temperature of the air-fuel mixed gas in the partial combustion state is higher, the heat exchange with the bottom of the pot (the bottom of the pot) is heat convection, and meanwhile, a small part of heat radiation exists; the gas generates high-temperature flue gas after being combusted, the high-temperature flue gas continuously carries out heat convection heat exchange with the pot bottom, and meanwhile, the temperature is gradually reduced in the heat exchange process until the high-temperature flue gas leaves the pot bottom. The main form of the heat exchange between the gas combustion of the gas stove and the boiler bottom is described above.

The existing main mode for improving the heat efficiency of the gas stove is realized by adding an energy-gathering cover, and the energy-gathering cover has a single-layer or multi-layer structure. The basic principle of the energy-gathering cover is that the efficiency is improved by two main modes of reducing ineffective heat loss and reducing the flow velocity of smoke, namely improving the heat exchange time of the smoke and the bottom of the pot. Wherein the ineffective heat loss comprises: the heat radiation loss of the downward flame (in the direction of the liquid containing tray and the glass panel), the heat exchange loss of the flame, namely the air-fuel mixed gas and the surrounding secondary air, the heat exchange loss of the high-temperature flue gas and the secondary air and the like improve the heat absorbed by the cooker by reducing the ineffective heat loss and improving the contact/heat exchange time of the flue gas and the cooker bottom.

Under the condition that the maximum heat load of the gas stove is constant, under the same factors such as the diameter of a pot, the distance between the pot and a flame and the like, the heat exchange coefficient of high-temperature flue gas and the pot bottom is basically unchanged, meanwhile, in order to ensure the CO index required by the national standard, the high-temperature flue gas cannot stay between the pot bottom and the energy-collecting cover all the time, the flue gas index is ensured by adjusting a smoke exhaust gap (the height of a supporting claw of the energy-collecting cover), and the smaller the smoke exhaust gap is, the longer the theoretical stay time of the flue gas is, but the CO exceeds the standard. Therefore, under the condition that parameters such as heat load (total amount of gas in the inner fire hole and the outer fire hole is constant), heat convection heat transfer coefficient is constant, heat transfer area (area of the bottom of the cooker) and the like cannot be improved, the heat absorbed by the cooker basically reaches a limit value, and the heat efficiency of the gas stove cannot be further improved.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a gas stove, which aims to solve the problem that the heat efficiency of the existing gas stove cannot be further improved.

According to an embodiment of the present invention, there is provided a gas range including: each fire cover is provided with a fire hole; the radiation layer is provided with mounting holes, the number of the mounting holes is equal to that of the fire covers, the fire covers correspond to one another one by one, any fire cover is located in one mounting hole, and a secondary air diversion channel communicated with the fire holes in the mounting hole and the outside is formed between the outer wall surface of the fire cover and the inner wall surface of the hole wall of the mounting hole.

Optionally, the fire cover comprises an outer fire cover, and the fire holes comprise outer fire holes arranged on the outer fire cover; the gas range further comprises: gather can the cover, inject the secondary air passageway, the secondary air passageway intercommunication corresponds outer fire lid secondary air water conservancy diversion passageway and external, wherein, the secondary air water conservancy diversion passageway that corresponds with outer fire lid indicates this outer fire lid and the cover establishes the secondary air water conservancy diversion passageway that encloses jointly in the mounting hole of this outer fire lid.

Optionally, the radiation layer is suitable for being arranged between the fire cover and the cooker and is positioned on the inner side of the energy-gathering cover.

Optionally, the fire cover comprises: the outer fire cover is provided with an outer fire hole; the inner fire cover is provided with an inner fire hole and is positioned on the inner side of the outer fire cover, an air channel is arranged between the inner fire cover and the outer fire cover and is communicated with the secondary air guide channel corresponding to the inner fire cover and the outside, wherein the secondary air guide channel corresponding to the inner fire cover refers to a secondary air guide channel which is surrounded by the inner fire cover and a mounting hole sleeved on the inner fire cover; wherein, the fire hole include outer fire hole with interior fire hole, interior fire lid with the quantity of outer fire lid with the quantity of mounting hole equals.

Optionally, the gas stove further comprises: the air distribution disc is provided with an air distribution disc through hole; the oven cavity is provided with an oven cavity through hole, one end of the oven cavity through hole is communicated with the outside, and the other end of the oven cavity through hole, the air distribution disc through hole and the air channel are sequentially communicated.

Optionally, in the flowing direction of the secondary air in the secondary air diversion channel, the hole wall of the mounting hole is inclined towards the outlet of the fire hole of the fire cover positioned in the mounting hole.

Optionally, the outer wall surface of the fire cover is inclined toward the outlet of the fire hole in the fire cover in the flow direction of the secondary air in the secondary air guide passage.

Optionally, it is same fire cover the quantity of fire hole be a plurality of, and a plurality of fire hole sets gradually along the circumference of fire cover, the minimum internal diameter of the pore wall of mounting hole is greater than or equal to be located in the mounting hole the diameter of the circumference that the export place of fire hole.

Optionally, the wall of the mounting hole is higher than the outlet of the fire hole in the mounting hole, and the height difference between the wall of the mounting hole and the outlet of the fire hole is in the range of 2mm-15mm.

Optionally, opposite hole walls of at least two adjacent mounting holes are provided with fire transfer grooves.

The gas stove provided by the embodiment of the disclosure can realize the following technical effects:

a secondary air guide channel is formed between the outer wall surface of the fire cover and the inner wall surface of the hole wall of the mounting hole, and outside air flows to the fire hole through the secondary air guide channel to supplement secondary air to the fire hole, so that the combustion effect of gas at the fire hole is improved, and the heat efficiency of the gas stove is improved. Because each fire cover is positioned in one mounting hole, each fire cover is provided with a corresponding secondary air diversion channel, so that the fire holes of each fire cover can supplement air through the secondary air diversion channels, and the heat efficiency of the gas stove is further improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural view of a gas range provided in an embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic structural diagram of a radiation layer provided by an embodiment of the present disclosure;

fig. 4 is a schematic structural view of another gas range provided by the embodiment of the present disclosure;

fig. 5 is a schematic structural view of a gas range portion provided in an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a furnace chamber provided in the embodiment of the present disclosure;

fig. 7 is a schematic structural view of another gas range provided by the embodiment of the present disclosure;

FIG. 8 is a cross-sectional view in the direction H-H in FIG. 7;

fig. 9 is an enlarged structural view of the portion M of fig. 8, in which solid line arrows indicate the flow direction of secondary air in the fire cap through holes (including inner fire cap through holes and outer fire cap through holes), and dotted line arrows indicate the flow direction of secondary air supplemented through the secondary air guide passage.

Reference numerals:

1. an inner fire cover; 11. an inner fire hole; 12. the inner fire cover is provided with a through hole; 13. an inner gas mixing cavity; 2. an outer fire cover; 21. an outer fire hole; 22. an outer fire cover through hole; 23. an inclined surface; 24. an outer gas mixing cavity; 31. a furnace chamber; 311. a first through hole; 312. a second through hole; 313. a furnace chamber through hole; 314. a gas flow channel of the inner furnace cavity; 315. an outer furnace cavity gas flow channel; 316. a convex column; 317. connecting columns; 318. connecting ribs; 319. a side wall; 320. an inner furnace chamber; 321. an outer furnace chamber; 32. a gas distribution plate; 321. a gas distribution disc through hole; 33. an energy-gathering cover; 331. an upper cover; 332. a lower cover; 333. a base plate; 334. a secondary air passage; 34. a radiation layer; 341. mounting holes; 342. a fire transfer groove; 343. a secondary air flow guide passage; 4. an ignition needle; 5. a thermocouple; 6. an air passage.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more, unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1-9, embodiments of the present disclosure provide a gas burner including a plurality of burner caps and a radiant layer 34.

As shown in fig. 1, the plurality of fire covers include an inner fire cover 1 and an outer fire cover 2, the number of the inner fire cover 1 is one or more, the number of the outer fire cover 2 is one or more, and the outer fire cover 2 is located at the outer side of the inner fire cover 1.

Optionally, as shown in fig. 1, the number of the inner fire covers 1 is one, the number of the outer fire covers 2 is multiple, and the multiple outer fire covers 2 are located outside the inner fire covers 1 and are sequentially arranged along the circumferential direction of the inner fire covers 1.

Each fire cover is provided with fire holes, and for convenience of description, the fire holes of the inner fire cover 1 are defined as inner fire holes 11, and the fire holes of the outer fire cover 2 are defined as outer fire holes 21.

As shown in fig. 1 and 2, the radiation layer 34 is provided with mounting holes 341, the number of the mounting holes 341 is equal to the number of the fire covers and corresponds to one, and any fire cover is located in one mounting hole 341, as shown in fig. 1 and 3, the number of the inner fire covers 1 is 1, the number of the outer fire covers 2 is 6, and the number of the corresponding mounting holes 341 is 7.

As shown in fig. 2, a secondary air flow guiding passage 343 for communicating the fire hole with the outside is formed between the outer wall surface of the fire cover and the inner wall surface of the mounting hole 341.

Air from the outside enters the secondary air guide channel 343 and flows to the fire hole through the secondary air guide channel 343 to supplement secondary air for the fire hole, thereby improving the combustion effect of fuel gas at the fire hole.

Optionally, as shown in fig. 8, the gas stove further comprises a energy collecting cover 33, the energy collecting cover 33 is sleeved outside the whole fire cover, the energy collecting cover 33 comprises an upper cover 331, a lower cover 332 and a bottom plate 333, the upper cover 331 is positioned below the lower cover 332 and defines a secondary air passage 334 or an insulating cavity with the lower cover 332, and the bottom plate 333 is positioned below the lower cover 332 and defines the secondary air passage 334 with the lower cover 332.

The secondary air passage 334 communicates with the outside and the secondary air guide passage 343. The air inlet end of the secondary air channel 334 is communicated with the outside, the air outlet end of the secondary air channel 334 is communicated with the secondary air diversion channel 343, and outside air enters the secondary air channel 334 and then enters the secondary air diversion channel 343, flows out of the secondary air diversion channel 343 to the fire hole, and replenishes secondary air for the fire hole.

Optionally, a radiation layer 34 is adapted to be provided between the fire lid and the pot and inside the shaped cover 33. As shown, the outer edge of the radiation layer 34 is disposed on the upper housing 331 and is located outside the upper housing 331.

The radiation layer 34 and the upper cover 331 may or may not be connected.

The radiation layer 34 is positioned on the inner side of the energy-gathering cover 33, so that the radiation layer 34 is ensured not to be too far away from the fire cover, namely the radiation layer 34 is close to the fire as far as possible, and heat conduction is carried out on the radiation layer 34 by utilizing high-temperature smoke generated by air-fuel mixed gas or gas combustion. Because radiation layer 34 is located between fire lid and the pan, carry out heat-conducting high temperature flue gas with radiation layer 34 earlier with radiation layer 34 heat transfer before with the pan heat transfer, consequently this part high temperature flue gas temperature is higher, heats radiation layer 34 to high temperature state (burning red) easily, and the radiation layer 34 of high temperature state sends infrared ray isoplanar form and carries out the heat radiation to the pan, and the high temperature flue gas that does not exchange heat with radiation layer 34 continues to carry out the heat transfer that is giving first place to with the heat convection with the pan. Thereby set up radiation layer 34 after, carry out energy conversion with the high temperature flue gas, after energy transfer to radiation layer 34 with the high temperature flue gas, radiation layer 34 transmits the pan through the form of heat radiation, partly high temperature flue gas has both been utilized, simultaneously with the heat transfer in-process of pan, heat radiation and thermal convection can exist simultaneously and do not have the influence mutually, and then the heat transfer form of high temperature flue gas and pan has been richened, and the heat exchange efficiency of heat radiation is higher than thermal convection, make transmission to the pan that the heat of high temperature flue gas can be more, thereby the thermal efficiency of gas-cooker has been improved.

Optionally, as shown in fig. 4, an air channel 6 is disposed between the inner fire cover 1 and the outer fire cover 2, the air channel 6 communicates the secondary air guiding channel 343 with the outside, and the radiation layer is located above the air channel.

The outside air enters the secondary air diversion channel 343 through the air channel, and is used for supplementing the secondary air towards the inner side of the outer fire cover 2 and the outer side of the inner fire cover 1, and the combustion effect of the fuel gas at the inner fire holes 11 and the outer fire holes 21 is improved.

Alternatively, the air passage 6 has a ring shape extending along the circumferential direction of the inner fire cover 1, so as to supplement secondary air to the plurality of inner fire holes 11 formed in the circumferential direction of the inner fire cover 1 and supplement secondary air to the plurality of outer fire covers 2 formed in the circumferential direction of the inner fire cover 1.

It can be understood that the air channel 6 may not be annular, and the number of the air channels 6 may be multiple, and the multiple air channels 6 are sequentially arranged along the circumferential direction of the inner fire cover 1.

Optionally, the gas stove further comprises a gas distribution plate 32 and a furnace chamber 31, and the gas flows through the furnace chamber 31, the gas distribution plate 32 and the fire cover in sequence. As shown in fig. 4, the fire cover, the air distribution plate 32 and the cavity 31 are sequentially arranged in a top-down direction.

The gas distribution plate 32 is provided with a gas distribution plate through hole 321, and the inner fire cover 1 is positioned in the gas distribution plate through hole 321; the oven cavity 31 is provided with an oven cavity through hole 313, one end of the oven cavity through hole 313 is communicated with the outside, and the other end of the oven cavity through hole 313, the air distribution disc through hole 321 and the air channel 6 are communicated in sequence.

The external air flows to the inner fire holes 11 and the outer fire holes 21 through the oven cavity through holes 313, the air distribution plate through holes 321, the air channel 6 and the secondary air guide channel 343 in sequence, and the secondary air is supplemented to the inner fire holes 11 and the outer fire holes 21.

The cavity 31 includes an inner cavity 320 and an outer cavity 321, the outer cavity is sleeved outside the inner cavity, the inner cavity is provided with an inner cavity fuel gas flow channel 314, the inner cavity fuel gas flow channel 314 is communicated with the inner fire hole 11, for example, as shown in fig. 9, the inner fire cover is annular, the annular inner wall and outer wall jointly define an inner gas mixing cavity 13, the inner fire hole is provided on the inner fire cover and is communicated with the inner gas mixing cavity, the inner fire cover is arranged above the inner cavity fuel gas flow channel 314, so that the inner gas mixing cavity is communicated with the inner cavity fuel gas flow channel 314, and the fuel gas flows into the inner fire hole 11 through the inner cavity fuel gas flow channel 314.

As shown in fig. 6, the inner cavity gas flow channel 314 is disposed outside the cavity through hole 313, and specifically, the cavity 31 includes a side wall 319, and the side wall 319 is disposed around the outside of the cavity through hole 313 and defines the inner cavity gas flow channel 314 with an outer wall surface of a hole wall of the cavity through hole 313.

The middle part of the inner fire cover 1 is provided with an inner fire cover through hole 12, for example, the inner wall of the annular inner fire cover defines the inner fire cover through hole 12. The furnace chamber 31 is provided with a first through hole 311, the first through hole 311 is communicated with the inner fire cover through hole 12 and the outside, and the inner fire cover through hole 12 is positioned at one side of the inner fire hole 11 facing the middle part of the inner fire cover 1.

The secondary air that gets into from the lower extreme of first through-hole 311 flows through first through-hole 311 and interior fire lid through-hole 12 in proper order to for the inboard interior fire hole 11 (interior fire lid 1 is equipped with many circles and overlaps the condition of the interior fire hole 11 of establishing in proper order from inside to outside direction, wherein, the direction that is close to interior fire lid 1 middle part is interior, and the direction of keeping away from interior fire lid 1 middle part is outside) or interior fire hole 11 leans on interior part (under the condition that the quantity of interior fire hole 11 is the round) supplementary secondary air.

The outer furnace chamber defines an outer furnace chamber gas flow channel 315, the outer furnace chamber is provided with a second through hole 312, the middle part of the outer fire cover 2 is provided with an outer fire cover through hole 22, the outer fire cover through hole 22 is positioned at the inner side of the outer fire hole 21, and the second through hole 312 is communicated with the outer fire cover through hole 22 and the outside.

The outer fire chamber gas flow channel 315 is communicated with the outer fire hole 21, for example, the outer fire cover is annular, the annular inner wall and the outer wall together enclose an outer gas mixing chamber 24, the outer fire hole is communicated with the outer gas mixing chamber, the outer gas mixing chamber is arranged above the outer fire chamber gas flow channel and is communicated with the outer fire chamber gas flow channel, so that the outer fire hole is communicated with the outer fire chamber gas flow channel, and the gas flows into the outer fire hole 21 through the outer fire chamber gas flow channel 315.

As shown in fig. 6, a convex pillar 316 is disposed in the outer furnace chamber fuel gas flow channel 315, and the second through hole 312 is disposed on the convex pillar 316 and penetrates through the convex pillar 316. A connecting column 317 is further arranged in the outer furnace chamber gas flow channel 315, the connecting column 317 is used for connecting the gas distribution plate 32 with the furnace chamber 31 and/or is used for connecting the liquid containing plate with the furnace chamber, wherein the liquid containing plate is used for receiving liquid overflowing from a pot during cooking, and a connecting rib 318 is connected between the connecting column 317 and the convex column 316 to enhance the structural strength of the furnace chamber 31.

The secondary air entering from the lower end of the second through hole 312 flows through the second through hole 312 and the outer fire cover through hole 22 in sequence, so that the secondary air is supplemented to the inner outer fire hole 21 (the outer fire cover 2 is provided with a plurality of circles of outer fire holes 21 sleeved in sequence from the inside to the outside, wherein the direction close to the middle part of the outer fire cover 2 is inner, and the direction far away from the middle part of the outer fire cover 2 is outer) or the inner part of the outer fire hole 21 (the number of the outer fire holes 21 is one circle).

Optionally, along the flowing direction of the secondary air in the secondary air diversion channel 343, the hole wall of the mounting hole 341 is inclined toward the outlet of the fire hole of the fire cover located in the mounting hole 341, for example, the hole wall of the mounting hole 341 sleeved outside the outer fire cover is inclined toward the outlet of the fire hole of the outer fire cover located in the mounting hole 341, and the hole wall of the mounting hole 341 sleeved outside the inner fire cover is inclined toward the outlet of the fire hole of the inner fire cover located in the mounting hole 341.

The secondary air flowing into the secondary air guide passage 343 from the outside flows along the inner wall surface of the hole wall of the mounting hole 341, that is, in a direction inclined toward the outlet of the fire hole of the fire cap located in the mounting hole 341, thereby guiding the secondary air to the root of the fire hole (the outlet of the fire hole). The outlet of one of the inner fire holes 11 and the outlet of one of the outer fire holes 21 are shown as F and E in fig. 4, respectively.

Alternatively, as shown in fig. 2, the outer wall surface of the fire cover is inclined toward the outlets of the fire holes on the fire cover to form an inclined surface 23 in the flow direction of the secondary air in the secondary air guide passage 343, wherein the inclined surface 23 is provided below the outlets of the fire holes. For example, the outer wall surface of the outer fire lid is inclined toward the outlet of the outer fire hole of the outer fire lid to form an inclined surface 23, and the outer wall surface of the inner fire lid is inclined toward the outlet of the inner fire hole of the inner fire lid to form an inclined surface 23.

In this embodiment, the wall of the mounting hole 341 and the inclined surface 23 of the fire cover located in the mounting hole 341 together form a secondary air guiding channel 343, and the secondary air guiding channel 343 is inclined towards the fire hole outlet direction of the fire cover located in the mounting hole 341, so that the secondary air flowing through the secondary air guiding channel 343 can flow to the fire hole outlet of the fire cover located in the mounting hole 341, and the utilization rate of the secondary air is improved.

Optionally, the number of the fire holes on the same fire cover is multiple, the multiple fire holes are sequentially arranged along the circumferential direction of the fire cover, and the minimum inner diameter of the hole wall of the mounting hole 341 is greater than or equal to the diameter of the circumference where the outlet of the fire hole is located.

The minimum inner diameter of the hole wall of the mounting hole 341 sleeved on the outer fire cover 2 is the same as the diameter of the circumference where the outlet of the outer fire hole 21 of the outermost ring of the outer fire cover is located, or the minimum inner diameter of the hole wall of the mounting hole 341 sleeved on the outer fire cover 2 is 1-1.3 times the diameter of the circumference where the outlet of the outer fire hole 21 of the outermost ring of the outer fire cover is located, so that the hole wall of the mounting hole 341 is prevented from shielding the outlet of the outer fire hole 21, and the secondary air in the secondary air guide channel 343 can be guided to the outlet of the outer fire hole 21 (the root of the outer fire hole 21).

The minimum inner diameter of the hole wall of the mounting hole 341 sleeved on the inner fire cover 1 is the same as the diameter of the circumference where the outlet of the inner fire hole 11 in the outermost ring of the inner fire cover is located, or the minimum inner diameter of the hole wall of the mounting hole 341 sleeved on the inner fire cover 1 is 1-1.3 times the diameter of the circumference where the outlet of the inner fire hole 11 in the outermost ring of the inner fire cover is located, so that the hole wall of the mounting hole 341 is prevented from blocking the outlet of the inner fire hole 11, and secondary air in the secondary air diversion channel 343 can be guided to the outlet of the inner fire hole 11 (the root of the inner fire hole 11).

Optionally, the wall of the mounting hole 341 is higher than the outlet of the fire hole of the fire cover located in the mounting hole 341, and the height difference between the two ranges from 2mm to 15mm.

The distance between the top of the wall of the mounting hole 341 and the outlet of the fire hole of the fire cover located in the mounting hole 341 is in the range of 2-15mm, for example, 2mm, 5mm, 8mm, 11mm or 15mm. If the distance is less than 2mm, the distance between the top of the hole wall of the mounting hole 341 and the outlet of the fire hole is too small, the flow area of the part of the secondary air guide channel 343 between the top of the hole wall of the mounting hole 341 and the outlet of the fire hole is too small, and secondary air is difficult to supply; if the distance is more than 15mm, the flame at the outlet of the fire hole directly burns to the hole wall of the first installation hole 341, and the smoke exceeds the standard. Therefore, the distance between the top of the hole wall of the mounting hole 341 and the outlet of the fire hole is 2-15mm, so that the hole wall of the mounting hole 341 is baked by high-temperature smoke generated by flame combustion until reaching a red hot state, and at the moment, the hole wall of the mounting hole 341 can emit infrared rays to perform heat radiation and heat exchange on the bottom of a boiler, thereby improving the heat efficiency of the gas stove.

The hole wall of mounting hole 341 heat transfer to radiation layer 34, after radiation layer 34 reached preset temperature, also can carry out the heat radiation heat transfer to the bottom of a boiler.

The walls of the radiation layer 34 and the mounting hole 341 may be made of common metal, ceramic, foamed metal, metal fiber, etc.

Optionally, at least two adjacent mounting holes 341 are provided with fire transfer grooves 342 on their opposite hole walls, and the fire transfer grooves 342 realize fire transfer between adjacent fire covers.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A gas cooker, comprising:

the fire cover is provided with a plurality of fire holes;

the radiation layer is provided with mounting holes, the number of the mounting holes is equal to that of the fire covers, the mounting holes correspond to one another one by one, any fire cover is located in one mounting hole, and a secondary air guide channel for communicating the fire holes located in the mounting holes with the outside is formed between the outer wall surface of the fire cover and the inner wall surface of the hole wall of the mounting hole.

2. The gas range of claim 1, wherein the fire cover comprises an outer fire cover, and the fire hole comprises an outer fire hole provided in the outer fire cover;

the gas range further comprises:

the energy-gathering cover limits a secondary air channel, and the secondary air channel is communicated with the secondary air diversion channel corresponding to the outer fire cover and the outside.

3. Gas burner according to claim 2,

the radiation layer is suitable for being arranged between the fire cover and the cooker and is positioned on the inner side of the energy-gathering cover.

4. The gas range of claim 1, wherein the fire cover comprises:

the outer fire cover is provided with an outer fire hole;

the inner fire cover is provided with an inner fire hole and is positioned at the inner side of the outer fire cover, an air channel is arranged between the inner fire cover and the outer fire cover, and the air channel is communicated with the secondary air diversion channel corresponding to the inner fire cover and the outside;

wherein, the fire hole include outer fire hole with interior fire hole, interior fire lid with the quantity of outer fire lid with the quantity of mounting hole equals.

5. The gas range of claim 4, further comprising:

the air distribution disc is provided with an air distribution disc through hole;

the oven cavity is provided with an oven cavity through hole, one end of the oven cavity through hole is communicated with the outside, and the other end of the oven cavity through hole, the air distribution disc through hole and the air channel are sequentially communicated.

6. Gas range according to any of the claims 1 to 5,

and along the flowing direction of the secondary air in the secondary air diversion channel, the hole wall of the mounting hole inclines towards the outlet of the fire hole of the fire cover positioned in the mounting hole.

7. Gas range according to any of the claims 1 to 5,

along the flowing direction of the secondary air in the secondary air guide channel, the outer wall surface of the fire cover inclines towards the outlet of the fire hole on the fire cover.

8. Gas stove according to any one of the claims 1 to 5,

it is same the fire is covered the quantity of fire hole is a plurality of, and is a plurality of the fire hole is followed the circumference of fire lid sets gradually, the minimum internal diameter of the pore wall of mounting hole is greater than or equal to be located the mounting hole the diameter of the circumference at the export place of fire hole.

9. Gas range according to any of the claims 1 to 5,

the hole wall of the mounting hole is higher than the outlet of the fire hole in the mounting hole, and the height difference between the hole wall and the outlet of the fire hole is 2-15 mm.

10. Gas range according to any of the claims 1 to 5,

at least two adjacent hole walls opposite to the mounting holes are provided with fire transmission grooves.

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