CN215951405U - Combustor and gas stove - Google Patents

Abstract

The application relates to the technical field of gas cookers and discloses a combustor and a gas stove. The burner includes: an inner fire cover; the outer fire cover is arranged on the outer side of the inner fire cover and provided with an outer fire hole and an outer fire cover through hole which is positioned on one side of the outer fire hole, which faces the middle part of the outer fire cover; and the outer furnace chamber is limited to form an outer furnace chamber fuel gas flow channel communicated with the outer fire hole, and a flow channel wall of the outer furnace chamber fuel gas flow channel is provided with an outer furnace chamber through hole communicated with the outer fire cover through hole and the outside. The outside air enters the outer fire cover through hole through the outer furnace cavity through hole and flows to the outer fire hole, secondary air can be supplemented to the inner outer fire hole (when the number of the outer fire holes on the outer fire cover is a plurality of circles which are sequentially arranged along the inner and outer directions) or the inner portion of the outer fire hole (when the number of the outer fire holes is one circle), and the combustion effect of the inner outer fire hole or the inner portion of the outer fire hole is improved.

Description

Combustor and gas stove

Technical Field

The application relates to the technical field of gas cookers, in particular to a burner and 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 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 which 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 downward flame (the direction of the liquid containing plate 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 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 certain, under the same factors such as the diameter of a cooker, the distance between the cooker and a flame and the like, the heat exchange coefficient of high-temperature flue gas and the bottom of the cooker is basically unchanged, meanwhile, in order to ensure the CO index required by national standard, the high-temperature flue gas cannot stay between the bottom of the cooker and an energy-collecting cover all the time, a smoke exhaust gap (the height of a supporting claw of the energy-collecting cover) must be adjusted to ensure the flue gas index, 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 certain heat load (certain total amount of fuel gas in the inner fire hole and the outer fire hole), certain heat convection heat transfer coefficient, heat transfer area (area of the bottom of the boiler) and the like cannot be improved, the heat absorbed by the boiler basically reaches a limit value, and the heat efficiency of the combustor cannot be further improved.

SUMMERY OF THE UTILITY MODEL

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 combustor and a gas stove, and aims to solve the problem that the heat efficiency of an existing combustor cannot be further improved.

According to a first aspect of embodiments of the present invention, there is provided a burner comprising: an inner fire cover; the outer fire cover is arranged on the outer side of the inner fire cover and provided with an outer fire hole and an outer fire cover through hole which is positioned on one side of the outer fire hole, which faces the middle part of the outer fire cover; and the outer furnace chamber is limited to form an outer furnace chamber fuel gas flow channel communicated with the outer fire hole, and a flow channel wall of the outer furnace chamber fuel gas flow channel is provided with an outer furnace chamber through hole communicated with the outer fire cover through hole and the outside.

Optionally, the quantity of outer fire lid is a plurality of, and is a plurality of outer fire lid all locates the outside of interior fire lid and edge the circumference of interior fire lid sets gradually.

Optionally, the outer furnace chamber gas flow channel is annular and extends along the circumferential direction of the inner fire cover, and the outer furnace chamber through hole is formed in the bottom wall of the outer furnace chamber gas flow channel.

Optionally, the burner further comprises: the convex columns are convexly arranged in the outer furnace cavity gas flow channel, the convex columns are provided with convex column through holes communicated with the outer furnace cavity through holes and the outer fire cover through holes, and the number of the convex columns is equal to that of the outer fire covers and corresponds to that of the outer fire covers one by one.

Optionally, the burner further comprises: the gas distribution disc is sleeved on the outer side of the inner fire cover and is provided with a gap communicated with the inner fire cover and the outer fire cover and an external gas distribution disc through hole.

Optionally, the burner further comprises: the mounting column is positioned in the gas flow channel of the outer furnace cavity and is used for connecting the gas distribution disc with the outer furnace cavity; and the connecting rib is connected between the mounting column and the convex column.

Optionally, the inner fire cover is provided with an inner fire hole and an inner fire cover through hole positioned at one side of the inner fire hole facing the middle part of the inner fire cover; the combustor still includes interior furnace chamber, interior furnace chamber is equipped with the intercommunication interior fire lid through-hole and external interior furnace chamber through-hole, interior furnace chamber includes the lateral wall, the lateral wall is around establishing the outside of interior furnace chamber through-hole, and with the outer wall of interior furnace chamber through-hole encloses out interior furnace chamber gas flow channel, interior fire lid is located interior furnace chamber gas flow channel, just interior fire hole with interior furnace chamber gas flow channel is linked together. .

Optionally, the burner further comprises: the side wall of the furnace cavity is in a non-annular shape extending along the circumferential direction of the through hole of the inner furnace cavity, and the thermocouple and the ignition needle are arranged at the non-annular position.

Optionally, a secondary air flow channel is defined between the inner furnace chamber and the outer furnace chamber, one end of the secondary air flow channel is communicated with a gap between the inner fire cover and the outer fire cover, and the other end of the secondary air flow channel is communicated with the outside.

According to a second aspect of embodiments of the present invention, there is provided a gas range including a burner as described in any one of the above embodiments.

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

the outside air enters the outer fire cover through hole through the outer furnace cavity through hole and then flows to the outer fire hole to supplement secondary air for the outer fire hole, so that the combustion effect of the fuel gas at the outer fire hole is improved, and the heat efficiency of the combustor is improved.

The outer fire cover through holes are arranged on one side, facing the middle part of the outer fire cover, of the outer fire holes, secondary air can be supplemented for the inner outer fire holes (the outer fire covers the inner fire holes in a plurality of circles which are sequentially arranged along the inner direction and the outer direction) or the inner portions of the outer fire holes (the outer fire holes are in a circle), and the combustion effect of the inner outer fire holes or the inner portions of the outer fire holes is 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 view of a combustor provided in accordance with embodiments of the present disclosure;

FIG. 5 is a schematic view of a combustor portion of the disclosed embodiment;

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 schematic sectional view taken along line H-H in FIG. 7;

fig. 9 is an enlarged structural view of the portion M of fig. 8, in which solid arrows indicate the flow direction of secondary air in the fire lid through-hole, and dotted arrows indicate the flow direction of secondary air supplemented by the radiation layer.

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 outer gas mixing cavity; 3. a furnace chamber; 31. an inner furnace chamber; 311. an inner furnace cavity through hole; 312. an outer furnace cavity through hole; 313. a gas flow channel of the inner furnace cavity; 314. an outer furnace chamber; 315. an outer furnace cavity gas flow channel; 316. a convex column; 317. connecting columns; 318. connecting ribs; 319. a secondary air flow path; 321. a convex column through hole; 322. a side wall; 32. a gas distribution plate; 321. a gas distribution disc through hole; 322. a gas distribution plate fixing hole; 323. a liquid containing disc fixing 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. a first secondary air flow guide passage; 342. a first mounting hole; 343. a second mounting hole; 344. a second secondary air flow guide passage; 345. a first fire transfer slot; 346. a second fire transfer slot; 4. an ignition needle; 5. a thermocouple; 6. a flow guide cap.

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 "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

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 embodiments of the present disclosure 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.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

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 to 9, an embodiment of the present disclosure provides a burner, which includes a fire cover and a furnace chamber 31, wherein the fire cover is disposed above the furnace chamber 31, and gas flows through the furnace chamber 31 and the fire cover in sequence.

The fire lid is equipped with fire hole and fire lid through-hole, and the fire lid through-hole is located the one side that the fire hole covered the middle part towards the fire, and the secondary air who comes from the fire lid through-hole like this can flow to inboard fire hole (when the quantity that the fire covered the fire hole was the many rings that set gradually along inside and outside direction) or the inside part (the quantity of fire hole is when the round) of fire hole supply secondary air, improves the combustion effect of the inboard inside part in fire hole or fire hole.

The furnace chamber 31 is provided with a furnace chamber through hole corresponding to the fire cover through hole, one end of the furnace chamber through hole is communicated with the fire cover through hole, and the other end of the furnace chamber through hole is communicated with the outside.

The fire cover through hole penetrates through the fire cover along the up-down direction, the furnace chamber through hole penetrates through the furnace chamber 31 along the up-down direction, the furnace chamber through hole corresponds to the fire cover through hole in position and is communicated with the fire cover through hole, and thus secondary air entering from the lower end of the furnace chamber through hole flows to the fire hole through the furnace chamber through hole and the fire cover through hole.

Optionally, as shown in fig. 1, fig. 2 and fig. 9, the fire cover includes an inner fire cover 1, the inner fire cover 1 is provided with an inner fire hole 11 and an inner fire cover through hole 12 located at one side of the inner fire hole 11 facing the middle of the inner fire cover 1, wherein the fire hole includes the inner fire hole 11, and the fire cover through hole includes the inner fire cover through hole 12. The inner fire cover 1 defines an inner air mixing cavity 13, and the inner air mixing cavity 13 is communicated with the fire hole.

The furnace chamber 3 comprises an inner furnace chamber 31, the inner furnace chamber 31 is provided with an inner furnace chamber through hole 311 which is communicated with the inner fire cover through hole 12 and the outside, the inner furnace chamber 31 comprises a side wall 322, the side wall 322 is wound on the outer side of the inner furnace chamber through hole 311 and surrounds an inner furnace chamber fuel gas flow channel 313 with the outer wall surface of the inner furnace chamber through hole 311, the inner fire cover 1 is covered on the inner furnace chamber fuel gas flow channel 313, the inner gas mixing chamber 13 is communicated with the inner furnace chamber fuel gas flow channel 313, so that the inner furnace chamber fuel gas flow channel 313 is communicated with the inner fire hole 11, wherein the furnace chamber through hole comprises the inner furnace chamber through hole 311.

By the injection effect of the inner fire hole 11, the external air flows to the inner fire hole 11 (when the number of the fire holes on the inner fire cover 1 is a plurality of circles which are sequentially arranged along the inner and outer directions) or the inner part of the inner fire hole 11 (when the number of the inner fire holes 11 is one circle) through the inner furnace cavity through hole 311 and the inner fire cover through hole 12 to supplement secondary air, so that the combustion effect of the inner fire hole 11 or the inner part of the inner fire hole 11 is improved.

The inner furnace chamber gas flow channel 313 is enclosed by the side wall 322 and the outer wall surface of the inner furnace chamber through hole 311, so that the inner furnace chamber 31 is compact in structure, and the condition that the size of the burner is overlarge due to the overlarge size of the inner furnace chamber 31 is avoided.

The inner fire cover 1 is annular, an inner fire cover through hole 12 is surrounded by the annular inner wall surface, and the annular inner fire cover 1 is covered above the inner furnace cavity fuel gas flow channel 313 to realize the communication between the inner furnace cavity fuel gas flow channel 313 and the inner gas mixing cavity 13.

The quantity of interior fire hole 11 is a plurality of, and a plurality of interior fire holes 11 set gradually along the circumference of interior fire lid 1. The number of turns scope of interior fire hole 11 is 1-5 circles, avoids interior fire hole 11's the number of turns to be greater than 5, leads to the interior fire hole 11 of middle number of turns to be difficult to obtain secondary air.

When the number of turns scope of interior fire hole 11 was greater than 1, fire hole 11 was established along the direction cover from inside to outside in proper order in the many circles, and 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 outer.

Alternatively, the inner fire hole 11 is formed at the top of the inner fire cover 1 and extends in the up-down direction, and it is understood that the inner fire hole 11 may be formed at the side wall of the inner fire cover 1 and may be inclined.

When 11 circles of internal fire holes scope is greater than 1, be located the setting of staggering of internal fire holes 11 in two adjacent circles at least on same internal fire lid 1, the supply of secondary air is not disturbed each other in two adjacent circles internal fire holes 11 like this.

Optionally, as shown in fig. 5, the burner further includes a thermocouple 5 and an ignition pin 4, and the side wall 322 has a non-annular shape extending along the circumferential direction of the inner furnace chamber through hole 311, and the thermocouple 5 and the ignition pin 4 are disposed at the non-annular shape.

Locate thermocouple 5 and ignition needle 4 in non-annular department for thermocouple 5 and ignition needle 4's position is compacter, compare in thermocouple 5 and be located the one end of interior furnace chamber 31, ignition needle 4 is located the other end of interior furnace chamber 31, thermocouple 5 and ignition needle 4 all locate non-annular department in this application, make thermocouple 5 and ignition needle 4 distance nearer, can reduce the influence of thermocouple 5 and ignition needle 4 to interior furnace chamber gas flow channel 313 structure, make interior furnace chamber gas flow channel 313 can be along the continuous extension of the circumference of interior furnace chamber through-hole 311 not interrupted by thermocouple 5 or ignition needle 4.

The inner fire cover is provided with an ignition hole corresponding to the ignition needle and a thermocouple hole corresponding to the thermocouple, and the ignition hole and the thermocouple hole are communicated with the inner gas mixing cavity.

Optionally, as shown in fig. 1 and 2, the fire lid further includes a plurality of outer fire lids 2, the outer sides of the inner fire lids 1 are all located by the plurality of outer fire lids 2 and are sequentially arranged along the circumferential direction of the inner fire lids 1, the outer fire lids 2 are provided with outer fire holes 21 and outer fire lid through holes 22 located at one side of the middle portions of the outer fire lids 2 facing the outer fire holes 21, wherein the fire holes include the outer fire holes 21, and the fire lid through holes include the outer fire lid through holes 22. The outer fire cover 2 is also provided with an outer air mixing cavity 23, and the outer fire hole 21 is communicated with the outer air mixing cavity 23.

The cavity 31 includes an outer cavity 314, the outer cavity 314 is located outside the inner cavity 31, the outer cavity 314 defines an outer cavity gas flow channel 315 communicated with the outer fire hole 21, and in particular, the outer cavity gas flow channel 315 is communicated with the outer gas mixing cavity 23, so that the outer cavity gas flow channel 315 is communicated with the outer fire hole 21.

The bottom wall of the outer furnace chamber gas flow channel 315 is provided with outer furnace chamber through holes 312 communicating the outer fire cover through holes 22 with the outside, wherein the furnace chamber through holes include the outer furnace chamber through holes 312.

The external air flows to the inner outer fire holes 21 (when the number of the fire holes on the outer fire cover 2 is multiple circles which are sequentially arranged along the inner and outer directions) or the inner portions of the outer fire holes 21 (when the number of the outer fire holes 21 is one circle) through the outer furnace cavity through holes 312 and the outer fire cover through holes 22 to supplement secondary air, so that the combustion effect of the inner outer fire holes 21 or the inner portions of the outer fire holes 21 is improved.

The outer fire cover 2 is annular, the annular inner wall surface encloses an outer fire cover through hole 22, and the annular outer fire cover 2 is covered above the outer furnace cavity gas flow channel 315 to realize the communication between the outer furnace cavity gas flow channel 315 and the outer gas mixing cavity 23.

The quantity of outer fire hole 21 is a plurality of, and a plurality of outer fire holes 21 set gradually along outer fire lid 2's circumference. The number of turns of outer fire hole 21 scope is 1-5 circles, avoids outer fire hole 21's the number of turns to be greater than 5, leads to outer fire hole 21 of middle number of turns to be difficult to obtain secondary air.

When the number of turns scope in outer fire hole 21 is greater than 1, many circles outer fire hole 21 is established along the direction cover from inside to outside in proper order, and wherein, the direction that is close to outer fire lid 2 middle part is interior, and the direction of keeping away from outer fire lid 2 middle part is outer.

Alternatively, the outer fire holes 21 are formed at the top of the outer fire cover 2 and extend in the up-down direction, and it is understood that the outer fire holes 21 may be formed at the side wall of the outer fire cover 2 and be inclined.

When the range of the number of circles of the outer fire holes 21 is larger than 1, the outer fire holes 21 of at least two adjacent circles on the same outer fire cover 2 are staggered, so that the outer fire holes 21 of two adjacent circles do not interfere with the supply of secondary air.

The outer cavity 314 is sleeved outside the inner cavity 31, the inner cavity through hole 311 supplements secondary air for the inner fire hole 11, and the outer cavity through hole 312 supplements secondary air for the outer fire hole 21.

Optionally, the outer furnace chamber gas flow channel 315 is in a ring shape extending along the circumferential direction of the inner fire cover 1, so that the outer furnace chamber gas flow channel 315 can provide gas through a plurality of outer fire holes 21 distributed circumferentially, and compared with the arrangement of a plurality of outer furnace chamber gas flow channels 315 corresponding to a plurality of outer fire covers 2, the design of the present application can simplify the structure of the outer furnace chamber 314 and reduce the cost of the outer furnace chamber 314.

The outer furnace chamber through hole 312 is arranged on the bottom wall of the flow channel of the outer furnace chamber fuel gas flow channel 315, and is injected by the outer fire hole 21, so that the outside air enters the outer furnace chamber through hole 312 through the lower end of the outer furnace chamber through hole 312 and flows to the outer fire hole 21 through the outer fire cover through hole 22.

Optionally, as shown in fig. 6 and 9, the burner further includes studs 316, the studs 316 are disposed in the outer furnace chamber gas flow channel 315 in a protruding manner, the studs 316 are disposed with stud through holes 321 communicating the outer furnace chamber through holes 312 and the outer fire cover through holes 22, and each outer fire cover 2 is disposed with outer fire cover through holes 22, and the number of the studs 316 is equal to the number of the outer fire covers 2 and corresponds to one another.

It can be understood that the number of the convex columns can be larger than that of the outer fire covers, and each outer fire cover corresponds to at least one convex column.

The convex columns 316 are arranged, so that the outer furnace cavity gas flow channel 315 is isolated from the outer furnace cavity through holes 312, secondary air is supplemented to the outer fire holes through the outer furnace cavity through holes 312, and the flowing of gas in the outer furnace cavity gas flow channel 315 is not influenced.

Optionally, as shown in fig. 5, the burner further comprises a gas distribution plate 32, and the gas distribution plate 32 is disposed between the outer furnace chamber 314 and the outer fire cover 2. The gas distribution plate 32 is covered above the outer furnace chamber 314, and surrounds the outer furnace chamber 314 to form an outer furnace chamber gas flow channel 315, and the gas distribution plate 32 is provided with a communication hole corresponding to the convex column 316, and the communication hole is communicated with the convex column through hole 321 and the outer fire cover through hole 22.

The external air enters the outer fire cover through hole 22 through the outer furnace cavity through hole 312, the convex column through hole 321 and the communication hole in sequence and flows to the outer fire hole 21 to supplement secondary air for the outer fire hole 21.

Optionally, a secondary air flow passage 319 is defined between the inner furnace chamber 31 and the outer furnace chamber 314, one end of the secondary air flow passage 319 is communicated with the gap between the inner fire cover 1 and the outer fire cover 2, and the other end of the secondary air flow passage 319 is communicated with the outside.

The outside air flows through the secondary air flow channel 319, the gap between the inner fire cover 1 and the outer fire cover 2 in sequence, flows between the inner fire cover 1 and the outer fire cover 2, and supplements secondary air for one side (the inner side of the outer fire cover 2) of the outer fire cover 2 facing the inner fire cover 1 and one side (the outer side of the inner fire cover 1) of the inner fire cover 1 facing the outer fire cover 2.

The gas distribution plate 32 is sleeved on the outer side of the inner fire cover 1, and the gas distribution plate 32 is provided with a gas distribution plate through hole 321 which is communicated with a gap between the inner fire cover 1 and the outer fire cover 2 and the secondary air flow channel 319.

The outside air flows through the secondary air flow channel 319, the air distribution plate through hole 321, and the gap between the inner fire cover 1 and the outer fire cover 2 in sequence to flow between the inner fire cover 1 and the outer fire cover 2, and supplements the secondary air for one side (the inner side of the outer fire cover 2) of the outer fire cover 2 facing the inner fire cover 1 and one side (the outer side of the inner fire cover 1) of the inner fire cover 1 facing the outer fire cover 2.

The air distribution disk through hole 321 is provided so that the air distribution disk 32 can not affect the communication between the gap between the inner fire cover 1 and the outer fire cover 2 and the secondary air flow passage 319.

The inner fire cover through hole 12 may supplement secondary air to the inner fire hole 11 located inside, and the secondary air flow channel 319 may supplement secondary air to the inner fire hole 11 located outside.

Optionally, as shown in fig. 6, the burner further comprises mounting posts 317 and connecting ribs 318.

The mounting post 317 is located in the outer oven cavity gas flow channel 315 for connection between at least one of the gas distribution plate 32 and a liquid containing plate of the burner for receiving soup overflowing from the pot during cooking and the outer oven cavity 314.

The gas distribution plate 32 can be connected with the outer furnace chamber 314 through the mounting column 317, or the liquid containing plate is connected with the outer furnace chamber 314 through the mounting column 317, or the gas distribution plate 32, the liquid containing plate and the outer furnace chamber 314 are connected with the outer furnace chamber 314 through the mounting column 317, at this time, as shown in fig. 5, the gas distribution plate 32 is provided with a liquid containing plate fixing hole 323 and a gas distribution plate fixing hole 324, and the liquid containing plate fixing hole 323 is matched with the mounting column 317 through a screw, so that the liquid containing plate, the gas distribution plate 32 and the outer furnace chamber 314 are fixed; the fixing hole 324 of the air distribution plate is matched with the connecting protrusion 320 positioned on the outer side of the connecting column through a screw, so that the air distribution plate is fixed with the oven cavity.

The connection rib 318 is connected between the mounting post 317 and the protruding post 316, which can enhance the structural strength of the outer cavity 314.

As shown in fig. 1, the top of the fire cover is covered with a deflector cap 6, optionally, the top of the inner fire cover is covered with a deflector cap 6, and the top of each inner fire cover is covered with a deflector cap 6. The function of water conservancy diversion cap does: on the one hand, carry out the water conservancy diversion to the secondary air that flows through fire lid through-hole, on the other hand prevents that food waste from falling to fire lid through-hole, and wherein, the fire lid that is equipped with this fire lid through-hole is located to the water conservancy diversion cap.

Embodiments of the second aspect of the present application provide a gas burner comprising a burner as described in any of the above embodiments.

The gas stove provided by the embodiment of the second aspect of the present application includes the burner described in any one of the above embodiments, so that all the beneficial effects of the burner described in any one of the above embodiments are achieved, and details are not repeated herein.

As shown in fig. 1 and 8, the gas stove further comprises a energy-gathering cover 33, the energy-gathering cover 33 is sleeved on the outer side of the whole fire cover, wherein the fire cover comprises an outer fire cover and an inner fire cover. The energy collecting cover 33 includes an upper cover 331, a lower cover 332, and a bottom plate 333, the upper cover 331 is located below the lower cover 332 and defines a secondary air passage 334 or an insulating chamber with the lower cover 332, the bottom plate 333 is located below the lower cover 332 and defines a secondary air passage 334 with the lower cover 332, and the secondary air passage 334 is communicated with the inner fire holes 11 and/or the outer fire holes 21 for supplementing secondary air to the inner fire holes 11 and/or the outer fire holes 21.

The gas cooker also comprises a radiation layer 34, wherein the radiation layer 34 is arranged on the inner side of the energy-gathering cover 33 and is suitable for being arranged between the cooker and the fire cover.

The radiation layer 34 is provided with a first mounting hole 342, the first mounting hole 342 is sleeved on the outer side of the inner fire cover 1, a first secondary air diversion channel 341 is formed between the hole wall of the first mounting hole 342 and the outer surface of the inner fire cover 1, the external air sequentially flows into the inner fire cover 1 and the outer fire cover 2 through the secondary air flow channel 319, the air distribution plate through hole 321 and the gap between the inner fire cover 1 and the outer fire cover 2 to supplement secondary air for the inner fire hole 11 and the outer fire hole 21, wherein the part flowing to the inner fire cover 1 flows into the inner fire hole 11 through the first secondary air diversion channel 341, and along the flowing direction of the secondary air in the first secondary air diversion channel 341, the hole wall of the first mounting hole 342 and the outer wall surface of the inner fire cover 1 incline towards the outlet of the inner fire hole 11.

The radiation layer 34 is further provided with a second mounting hole 343, and the second mounting hole 343 is sleeved on the outer side of the outer fire cover 2. The number of the second mounting holes 343 is equal to the number of the outer fire covers 2 and corresponds to one. A second secondary air guide channel 344 is formed between the hole wall of the second mounting hole 343 and the outer surface of the outer fire cover 2, and external air flows to the outer fire cover 2 through the secondary air channel 334 and the second secondary air guide channel 344 in sequence to supplement secondary air to the outer fire holes 21, wherein along the flowing direction of the secondary air in the second secondary air guide channel 344, the hole wall of the second mounting hole 343 and the outer wall surface of the outer fire cover 2 located in the second mounting hole 343 are inclined toward the outlet of the outer fire holes 21. The outlet of one of the outer fire holes 21 is shown at E in fig. 4, and the outlet of one of the inner fire holes 11 is shown at F in fig. 4.

Optionally, as shown in fig. 3, the hole walls of the first mounting hole opposite to the adjacent second mounting hole are provided with a first fire transfer groove 345, and the first fire transfer groove 345 realizes fire transfer between the inner fire cover 1 and the adjacent outer fire cover 2; and/or at least two adjacent hole walls of the second mounting holes are provided with second fire transfer grooves 356, and the second fire transfer grooves 346 realize fire transfer between the adjacent outer fire covers 2.

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 burner, comprising:

an inner fire cover;

the outer fire cover is arranged on the outer side of the inner fire cover and provided with an outer fire hole and an outer fire cover through hole which is positioned on one side of the outer fire hole, which faces the middle part of the outer fire cover;

and the outer furnace chamber is limited to form an outer furnace chamber fuel gas flow channel communicated with the outer fire hole, and a flow channel wall of the outer furnace chamber fuel gas flow channel is provided with an outer furnace chamber through hole communicated with the outer fire cover through hole and the outside.

2. The burner of claim 1,

the quantity of outer fire lid is a plurality of, and is a plurality of outer fire lid all locates the outside of interior fire lid is followed the circumference of interior fire lid sets gradually.

3. The burner of claim 2,

the outer furnace chamber fuel gas flow channel is in an annular shape extending along the circumferential direction of the inner fire cover, and the outer furnace chamber through hole is formed in the bottom wall of the flow channel of the outer furnace chamber fuel gas flow channel.

4. The burner of claim 1, further comprising:

the convex columns are convexly arranged in the outer furnace cavity gas flow channel, the convex columns are provided with convex column through holes communicated with the outer furnace cavity through holes and the outer fire cover through holes, and the number of the convex columns is equal to that of the outer fire covers and corresponds to that of the outer fire covers one by one.

5. The burner of claim 4, further comprising:

the gas distribution disc is sleeved on the outer side of the inner fire cover and is provided with a gap communicated with the inner fire cover and the outer fire cover and an external gas distribution disc through hole.

6. The burner of claim 5, further comprising:

the mounting column is positioned in the gas flow channel of the outer furnace cavity and is used for connecting the gas distribution disc with the outer furnace cavity;

and the connecting rib is connected between the mounting column and the convex column.

7. The burner according to any one of claims 1 to 6,

the inner fire cover is provided with an inner fire hole and an inner fire cover through hole which is positioned at one side of the inner fire hole facing to the middle part of the inner fire cover;

the combustor still includes interior furnace chamber, interior furnace chamber is equipped with the intercommunication interior fire lid through-hole and external interior furnace chamber through-hole, interior furnace chamber includes the lateral wall, the lateral wall is around establishing the outside of interior furnace chamber through-hole, and with the outer wall of interior furnace chamber through-hole encloses out interior furnace chamber gas flow channel, interior fire lid is located interior furnace chamber gas flow channel, just interior fire hole with interior furnace chamber gas flow channel is linked together.

8. The burner of claim 7, further comprising:

the side wall of the furnace cavity is in a non-annular shape extending along the circumferential direction of the through hole of the inner furnace cavity, and the thermocouple and the ignition needle are arranged at the non-annular position.

9. The burner of claim 7,

and a secondary air flow channel is defined between the inner furnace chamber and the outer furnace chamber, one end of the secondary air flow channel is communicated with the gap between the inner fire cover and the outer fire cover, and the other end of the secondary air flow channel is communicated with the outside.

10. A gas burner comprising a burner as claimed in any one of claims 1 to 9.

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