CN219318436U - Burner with a burner body - Google Patents

Abstract

The utility model provides a burner. The burner comprises a fire cover and a fire distributor, wherein the fire cover is covered on the fire distributor and surrounds the fire distributor to form a gas mixing chamber, the fire cover is provided with a fire cover outer side wall which surrounds the gas mixing chamber and extends downwards, the fire distributor is provided with a fire cover outer side wall which surrounds the gas mixing chamber and extends upwards, the fire cover outer side wall is sleeved on a first side of the fire distributor outer side wall or is inserted into a second side of the fire distributor outer side wall, so that the fire cover outer side wall and the fire distributor outer side wall are provided with an overlapping area along the vertical direction, the first side and the second side are opposite to each other, an inner and outer through fire distributor fire outlet channel is arranged on a part of the fire distributor outer side wall corresponding to the overlapping area, and the fire cover fire outlet channel are mutually communicated. Therefore, the occurrence of conditions such as tempering and the like can be avoided, so that the burner can better adapt to the high-power combustion requirement and meet the requirements of various combustion working conditions.

Description

Burner with a burner body

Technical Field

The utility model relates to the technical field of cooking appliances, in particular to a combustor.

Background

The burner is used as a main appliance of a household kitchen and generally comprises a combustion head, a distributor and a fire cover covered on the distributor. The fire distributor, the fire cover and other structures are usually made of cast iron or aluminum alloy and other materials. However, cast iron is prone to rust and aluminum alloys are prone to deformation during use when burned at high temperatures.

In order to solve the above problems, some of the burners on the market are made of stainless steel materials. Stainless steel has better material stability, is not easy to rust and is not easy to deform under high temperature conditions. However, the hardness of the stainless steel material is high, so that the processing difficulty is high. Therefore, the burner is manufactured using a stainless steel material having a small thickness.

However, the fire cover with smaller thickness can cause the problem that the depth of a fire hole on the fire cover is too small, tempering and the like are easy to occur, and the use experience of a user is poor.

Disclosure of Invention

In order to at least partially solve the problems of the prior art, according to one aspect of the present utility model, a burner is provided. The burner comprises a fire cover and a fire distributor, wherein the fire cover is covered on the fire distributor and surrounds the fire distributor to form a gas mixing chamber, the fire cover is provided with a fire cover outer side wall which surrounds the gas mixing chamber and extends downwards, the fire distributor is provided with a fire cover outer side wall which surrounds the gas mixing chamber and extends upwards, the fire cover outer side wall is sleeved on a first side of the fire distributor outer side wall or is inserted into a second side of the fire distributor outer side wall, so that the fire cover outer side wall and the fire distributor outer side wall are provided with an overlapping area along the vertical direction, the first side and the second side are opposite to each other, an inner and outer through fire distributor fire outlet channel is arranged on a part of the fire distributor outer side wall corresponding to the overlapping area, and the fire cover fire outlet channel are mutually communicated.

By the arrangement, the path length of the gas mixture passing through can be increased without increasing the thickness of the outer side wall of the fire cover or the outer side wall of the distributor, and the occurrence of tempering and other conditions is avoided, so that the burner can better adapt to high-power combustion demands and meet the requirements of various combustion working conditions. Under the condition that the lengths of paths through which the gas mixture passes are the same, the fire cover and the distributor of the burner can be made of materials with smaller thickness. That is, the burner provided by the application has lower production cost on the premise of ensuring the combustion effect. Especially when fire lid and distributor adopt stainless steel material to make, set up like this and need not to increase the thickness of fire lid and distributor, can not increase its processing degree of difficulty and processing cost.

Illustratively, at least one of the top of the distributor outer side wall and the bottom of the fire cover outer side wall is provided with a plurality of grooves forming fire exit channels on the side wall where they are located. By the arrangement, the structure of the burner can be effectively simplified, and the processing difficulty and the production cost are reduced.

Illustratively, a plurality of grooves are provided on only the inner side wall of the distributor outer side wall and the fire cover outer side wall. Therefore, the fire outlet channel formed by the grooves on the inner side is not directly exposed to the outside, and the fire outlet effect is better.

The distributor flame out channel may include a first distributor flame out channel, the flame cover flame out channel may include a first flame cover flame out channel in communication with the first distributor flame out channel, the first distributor flame out channel and the first flame cover flame out channel forming a main flame hole of the burner. The pilot holes may provide the primary combustion effectiveness for the combustion of the burner. The main fire hole is longer in the path of the gas mixture passing through, so that the problems of tempering and the like are avoided, and a better combustion effect is ensured.

Illustratively, the distributor flame out channel comprises a second distributor flame out channel, the flame cover flame out channel comprises a second flame cover flame out channel communicated with the second distributor flame out channel, the second distributor flame out channel and the second flame cover flame out channel form a flame stabilizing hole of the burner, and the flame stabilizing hole is positioned below the main flame hole. When the main fire hole is in a condition of flame separation and the like, the flame stabilizing hole is positioned below the main fire hole, the flame of the flame stabilizing hole can ignite the main fire hole from the root of the main fire hole, the flame stabilizing effect is better, and the combustion effect of the burner is more stable. The flame stabilizing hole is arranged in such a way, the path of the gas mixture passing through the flame stabilizing hole is longer, the problems of tempering and the like can be avoided, and a good flame stabilizing effect is ensured.

Illustratively, the second distributor fire outlet channel and the second fire cover fire outlet channel are through holes. The through holes can limit the gas mixture at the periphery of the flame outlet channel, so that the flame outlet is more controllable, namely, the flame outlet effect of the flame stabilizing holes is controlled, and the stability of the flame stabilizing effect of the burner is further ensured.

The burner comprises a plurality of main combustion areas and a plurality of wok stand avoiding combustion areas which are alternately arranged along the circumferential direction of the burner, wherein the main fire holes are positioned in the plurality of main combustion areas, the fire distributor fire outlet channel comprises a third fire distributor fire outlet channel, the fire cover fire outlet channel comprises a third fire cover fire outlet channel communicated with the third fire distributor fire outlet channel, the third fire distributor fire outlet channel and the third fire cover fire outlet channel are both arranged in the plurality of wok stand avoiding combustion areas to form a fire transmission opening, and the maximum size of at least one of the third fire distributor fire outlet channel and the third fire cover fire outlet channel along the vertical direction is smaller than the maximum size of the main fire holes along the vertical direction. In general, a pot rack is provided at the outer circumference of the fire cover, and the pot rack includes a plurality of supporting corner pieces arranged at intervals for supporting the pot body above the burner. The positions of the supporting corner pieces can correspond to the positions of the pot racks avoiding the combustion areas. The combustion firepower of the fire transmission opening in the boiler frame avoiding combustion area is smaller than that of the main combustion area, the burning of supporting corner pieces of the boiler frame of the burner can be better reduced, and the structural arrangement is more reasonable.

The outer fire channel of the third fire distributor fire channel and the third fire cover fire channel is a fire transfer groove extending along the circumferential direction. It will be appreciated that the width of the groove may be machined to be smaller than the diameter of the through hole at the time of machining. Therefore, the firepower in the combustion area avoided by the pot rack can be better reduced, and the burning of the pot rack is further reduced.

The fire outlet channel of the inner layer in the fire outlet channel of the third fire distributor and the fire outlet channel of the third fire cover is a through hole, and the aperture of the through hole is larger than or equal to the width of the fire transmission groove. Therefore, the fire outlet channel positioned on the inner layer can provide sufficient gas mixture for the fire outlet channel on the outer layer, and the structural arrangement is more reasonable.

Illustratively, the plurality of distributor fire channels and the plurality of fire cap fire channels within the plurality of primary combustion zones are in one-to-one correspondence. Each main fire hole and each flame stabilizing hole in the combustor can enable a gas mixture to pass through a longer path, so that the problems of tempering and the like are avoided, and the combustion effect is more stable.

Illustratively, the distributor outer side wall and the fire cover outer side wall rest against each other in the horizontal direction. The fire distributor is stable in connection between the fire outlet channel and the fire outlet channel of the fire cover, and the structure is compact and reasonable.

Illustratively, the fire discharge passage of the distributor is inclined from the inside to the outside and upwards. The fire outlet channel of the distributor, which is arranged obliquely upwards, can be further increased in length on the basis of not increasing the thickness of the outer side wall of the distributor, so that the conditions of backfire and the like of the burner can be better avoided.

Illustratively, the fire cover fire exit passage is disposed obliquely from the inside to the outside and upward. The fire outlet channel of the fire cover which is obliquely arranged upwards can be further increased in length on the basis of not increasing the thickness of the outer side wall of the fire cover, and the conditions of tempering and the like of the burner can be better avoided.

Illustratively, the cross-sectional area of the flame out channel in the outer side wall of the distributor and the outer side wall of the flame cover on the side wall of the inner layer is greater than or equal to the cross-sectional area of the flame out channel in the outer side wall of the distributor and the outer side wall of the flame cover. By the arrangement, the fire outlet channel of the inner layer can be guaranteed to provide sufficient gas mixture for the fire outlet channel of the outer layer, so that the combustion effect is guaranteed.

Illustratively, one or more of the distributor and the fire cover are made of stainless steel material. The stainless steel material has better stability, is not easy to rust even in environments with higher humidity such as a kitchen, is more resistant to high temperature, can ensure the stability of the structure under the high temperature condition, is not easy to deform, and has better durability.

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Advantages and features of the utility model are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

FIG. 1 is an exploded view of a burner according to an exemplary embodiment of the present utility model;

FIGS. 2-4 are cross-sectional views of a burner according to an exemplary embodiment of the utility model;

FIG. 5 is a perspective view of an distributor according to an exemplary embodiment of the present utility model;

FIGS. 6-8 are cross-sectional views of an distributor according to an exemplary embodiment of the present utility model;

FIG. 9 is a perspective view of a fire cover according to an exemplary embodiment of the utility model;

fig. 10-12 are cross-sectional views of fire covers according to an exemplary embodiment of the utility model.

Wherein the above figures include the following reference numerals:

10. a fire divider; 101. a gas mixing chamber; 102. a main combustion zone; 103. the pot rack avoids the combustion area; 110. the outer side wall of the distributor; 120. a fire outlet channel of the fire distributor; 1201. a first distributor fire outlet channel; 1202. a second distributor fire outlet channel; 1203. a third distributor fire outlet channel; 20. a fire cover; 210. the outer side wall of the fire cover; 220. a fire cover fire outlet channel; 2201. a first fire cover fire outlet passage; 2202. a second fire cover fire outlet channel; 2203. a third fire cover fire outlet channel; 230. a fire cover top wall; 310. a main fire hole; 320. flame stabilizing holes; 330. and a fire transmission opening.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the utility model. However, it will be understood by those skilled in the art that the following description illustrates preferred embodiments of the utility model by way of example only and that the utility model may be practiced without one or more of these details. Furthermore, some technical features that are known in the art have not been described in detail in order to avoid obscuring the utility model.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are set forth by those skilled in the art. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.

The embodiment of the utility model provides a combustor. Referring to fig. 1-4 in combination, the burner may include a flame cover 20 and a distributor 10, and the flame cover 20 may be snapped onto the distributor 10 and enclose the distributor 10 to form a plenum 101. The fire cover 20 may have a fire cover outer sidewall 210 surrounding the plenum 101 and extending downward, and the distributor 10 may have a distributor outer sidewall 110 surrounding the plenum 101 and extending upward. In the illustrated embodiment, the flame cover outer side wall 210 extends in a vertically downward direction and the flame divider outer side wall 110 extends in a vertically upward direction. In an embodiment not shown, the fire cover outer side wall 210 and the distributor outer side wall 110 may extend in other directions at any angle to the vertical, which is not limited in this application. The fire cover outer side wall 210 may be sleeved on a first side of the distributor outer side wall 110 or inserted on a second side of the distributor outer side wall 110 such that the fire cover outer side wall 210 and the distributor outer side wall 110 have an overlap region 104 along a vertical direction, and the first side and the second side may be opposite to each other. The first side and the second side may be understood as the outer side and the inner side, respectively, that is, the fire cover outer side wall 210 and the distributor outer side wall 110 are located one outside the other. Located on the outside may be a fire cover outer side wall 210 or a distributor outer side wall 110, which may be specifically set according to practical situations. The portion of the distributor outer side wall 110 corresponding to the overlapping region 104 may be provided with a distributor fire outlet channel 120 that is internally and externally perforated, and the portion of the distributor outer side wall corresponding to the overlapping region is provided with a fire cover fire outlet channel 220 that is internally and externally perforated, the distributor fire outlet channel 120 and the fire cover fire outlet channel 220 being in communication with each other. The gas and air are mixed in the gas mixing chamber 101, and the mixed gas mixture flows out through the distributor flame-out channel 120 and the flame cover flame-out channel 220 and is ignited. Referring to fig. 2-4, the outer side wall 210 of the fire cover is sleeved on the first side of the outer side wall 110 of the distributor, so that the gas mixture in the gas mixing chamber 101 sequentially passes through the fire outlet channel 120 of the distributor and the fire outlet channel 220 of the fire cover, and burns at the air outlet end of the fire outlet channel 220 of the fire cover. In other embodiments, the outer side wall 210 of the fire cover is inserted on the second side of the outer side wall 110 of the distributor, and then the gas mixture in the gas mixing chamber 101 sequentially passes through the fire cover fire outlet channel 220 and the distributor fire outlet channel 120, and burns at the air outlet end of the distributor fire outlet channel 120. Regardless of how the cover outer side wall 210 and the distributor outer side wall 110 are positioned, in the overlap region 104, the path that the gas mixture passes through is two channels, including the cover discharge channel 220 and the distributor discharge channel 120.

By the arrangement, the path length of the gas mixture passing through can be increased without increasing the thickness of the outer side wall 210 of the fire cover or the outer side wall 110 of the distributor, and the occurrence of tempering and other conditions is avoided, so that the burner can better adapt to high-power combustion demands and meet the requirements of various combustion working conditions. In the case that the lengths of the paths through which the gas mixture passes are the same, the fire cover 20 and the distributor 10 of the burner provided by the application can be made of materials with smaller thickness. That is, the burner provided by the application has lower production cost on the premise of ensuring the combustion effect. Particularly, when the fire cover 20 and the distributor 10 are made of stainless steel materials, the thickness of the fire cover 20 and the distributor 10 does not need to be increased, and the processing difficulty and the processing cost of the fire cover and the distributor are not increased. It should be noted that, the scheme that this application provided can be applicable to the combustor that stainless steel material made, and it can solve current combustor tempering, from flame, the high scheduling problem of processing degree of difficulty, and this scheme also can be applied to the combustor of other materials, does not do too much to this and restrict.

For example, referring to fig. 1, 2 and 5 in combination, at least one of the top of the distributor outer side wall 110 and the bottom of the fire cover outer side wall 210 may be provided with a plurality of grooves. The plurality of grooves may form fire-out channels on the side walls where they are located. That is, the grooves provided on the distributor outer side wall 110 form the distributor fire channel 120, and the grooves provided on the fire cover outer side wall 210 form the fire cover fire channel 220. It will be appreciated that in the illustrated embodiment, the recess is provided only in the distributor outer side wall 110. In some embodiments, the recess may be provided only on the outer side wall of the fire cover. Or, the outer side wall of the distributor can be provided with a concave groove which is concave downwards, the outer side wall of the fire cover can be provided with a concave groove which is concave upwards, and the two grooves can be overlapped. By the arrangement, the structure of the burner can be effectively simplified, and the processing difficulty and the production cost are reduced.

Illustratively, referring to fig. 1 and 2 in combination, a plurality of grooves are provided in only the inner side wall of the distributor outer side wall 110 and the cover outer side wall 210. Therefore, the fire outlet channel formed by the grooves on the inner side is not directly exposed to the outside, and the fire outlet effect is better. Preferably, the distributor outer side wall 110 can be located on the second side of the fire cover outer side wall 210 and the recess is provided on top of the distributor outer side wall 110. In this way, the top wall 230 of the fire cover may form part of the fire outlet channel 120 of the distributor, with a more rational structural arrangement. Alternatively, in some embodiments, a plurality of grooves may be provided in only the side walls of the outer layer, which may be located on the outer side walls of the distributor and the fire cover.

For example, referring to fig. 1 and 2 in combination, the distributor fire channel 120 can include a first distributor fire channel 1201. The fire cover fire exit passage 220 may include a first fire cover fire exit passage 2201. The first flame cover flame out channel 2201 may be in communication with the first flame divider flame out channel 1201. Which may be as in the illustrated embodiment, first distributor fire channel 1201 is located on a second side of first fire cover fire channel 2201. It is also possible that first distributor flame path 1201 is located on a first side of first flame cap flame path 2201, depending on the manner of assembly between flame cap 20 and distributor 10. The first distributor fire channel 1201 and the first cover fire channel 2201 may form the main fire hole 310 of the burner. The main fire holes 310 may provide a major combustion effectiveness for the combustion of the burner. The main fire hole 310 is arranged in such a way, the path of the gas mixture passing through is longer, the problems of tempering and the like are avoided, and the better combustion effect is ensured. Of course, in some embodiments, the first distributor flame out channel and the first cover flame out channel may only form flame stabilizing holes of the burner.

1-3, the distributor flame out channel 120 can include a second distributor flame out channel 1202 and the flame cover flame out channel 220 can include a second flame cover flame out channel 2202. The second flame cover flame out channel 2202 can be in communication with the second distributor flame out channel 1202. The second distributor flame out channel 1202 and the second flame cover flame out channel 2202 form the flame stabilizing holes 320 of the burner, the flame stabilizing holes 320 being located below the main flame holes 310. When the main fire hole 310 is in a condition of flame separation and the like, the flame stabilizing hole 320 is positioned below the main fire hole 310, the flame of the flame stabilizing hole 320 can ignite the main fire hole 310 from the root of the main fire hole 310, the flame stabilizing effect is better, and the combustion effect of the burner is more stable. The flame stabilizing hole 320 is arranged in such a way that the path of the gas mixture passing through is longer, so that the problems of tempering and the like can be avoided, and a better flame stabilizing effect is ensured.

For example, referring to fig. 1, 3, 5, and 9 in combination, the second distributor fire outlet channel 1202 and the second fire cover fire outlet channel 2202 may each be a through hole. That is, a second distributor fire channel 1202 is formed in the through hole in the distributor outer side wall 110 and a second fire cover fire channel 2202 is formed in the through hole in the fire cover outer side wall 210. The through holes can limit the gas mixture at the periphery of the flame outlet channel, so that the flame outlet is more controllable, namely, the flame outlet effect of the flame stabilizing holes 320 is controlled, and the stability of the flame stabilizing effect of the burner is further ensured. In some embodiments, one or more of the second distributor fire channel and the second fire lid fire channel may be a groove.

For example, referring to fig. 1, 2 and 4 in combination, the burner may include a plurality of main combustion zones 102 and a plurality of rack-avoiding combustion zones 103 alternately arranged in a circumferential direction of the burner. The primary fire holes 310 may be located in a plurality of primary combustion zones 102. The distributor fire channel 120 can include a third distributor fire channel 1203 and the fire cover fire channel 220 can include a third fire cover fire channel 2203 in communication with the third distributor fire channel 1203. The third distributor flame out channel 1203 and the third flame cover flame out channel 2203 can each be disposed within the plurality of wok stand-off combustion zones 103 to form flame transfer openings 330. The maximum dimension in the vertical direction of at least one of the third distributor fire channel 1203 and the third fire cover fire channel 2203 may be smaller than the maximum dimension in the vertical direction of the main fire hole 310. Taking the illustrated embodiment as an example, the maximum dimension of the first distributor fire outlet channel 1201 in the vertical direction is D1 (see fig. 6), the maximum dimension of the first fire cover fire outlet channel 2201 in the vertical direction is D2 (see fig. 10), the maximum dimension of the third distributor fire outlet channel 1203 in the vertical direction is D3 (see fig. 8), and the maximum dimension of the third fire cover fire outlet channel 2203 in the vertical direction is D4 (see fig. 12). Among them, the maximum size of the main fire hole 310 in the vertical direction may be understood as D2, that is, at least one of D3 and D4 is smaller than D2. Either or both of D3 and D4 are less than D2, resulting in a lower fire than the main fire hole 310, i.e., lower combustion in the rack-avoiding combustion zone 103 than in the main combustion zone 102. Typically, a pot rack is provided on the outer periphery of the fire cover 20, and the pot rack includes a plurality of supporting corner pieces arranged at intervals for supporting the pot body above the burner. The plurality of support gussets may be positioned to correspond to the plurality of wok stand-off combustion zones 103. The combustion fire of the fire transfer opening 330 in the boiler rack avoiding combustion zone 103 is smaller than that of the main combustion zone 102, burning of supporting corner pieces of the boiler rack of the burner can be better reduced, and the structural arrangement is more reasonable.

For example, referring to fig. 4, 5 and 9 in combination, the outer ones of third distributor fire channel 1203 and third cover fire channel 2203 may be in the form of circumferentially extending firearms grooves. It will be appreciated that the width of the groove may be machined to be smaller than the diameter of the through hole at the time of machining. Therefore, the firepower in the boiler frame avoiding combustion area 103 can be better reduced, and the burning of the boiler frame is further reduced.

Illustratively, in connection with fig. 1, 3 and 4, the flame propagation slot and the flame stabilizing aperture 320 may be located at the same height. In this way, the flame transfer groove is closer to the flame stabilizing hole 320, so that the flame of the flame stabilizing hole 320 adjacent to the flame transfer groove can be better conducted, and the flame stabilizing effect of the burner is further ensured. Further, the flame transfer groove may penetrate through the pot frame to avoid the combustion area 103 along the circumferential direction of the flame cover 20 and communicate with the flame stabilizing holes 320 adjacent to the flame transfer groove on both sides. Alternatively, the height of the fire transfer groove can be set at any height according to the use requirement.

For example, referring to fig. 1, 4, 8 and 12 in combination, the inner fire channel among the third distributor fire channel 1203 and the third cover fire channel 2203 may be a through hole, and the hole diameter D3 of the through hole may be greater than or equal to the width D4 of the fire transfer groove. Therefore, the fire outlet channel positioned on the inner layer can provide sufficient gas mixture for the fire outlet channel on the outer layer, and the structural arrangement is more reasonable. When the fire outlet channel 1201 of the first distributor is a through hole, the through hole of the fire outlet channel positioned on the inner layer can be in the same specification as the fire outlet channel 1201 of the first distributor, and the processing is simpler. Or, the third distributor goes out the fire passageway and the third fire and covers out the structure of fire passageway and can do other settings according to the user demand setting, for example, third distributor goes out fire passageway and third fire and covers out the fire passageway and can all be the biography fire groove, and is located the width of the biography fire groove of inboard and can be less than the width of the biography fire groove of outside.

1-3, a plurality of distributor fire channels 120 within a plurality of primary combustion zones 102 may be in one-to-one correspondence with a plurality of fire cap fire channels 220. That is, one distributor flame path 120 and one cover flame path 220 together form one flame path (main flame hole or flame stabilizing hole). Each main fire hole 310 and each flame stabilizing hole 320 in the burner can make the path of the gas mixture passing through the main fire hole longer, avoid the problems of tempering and the like, and have more stable combustion effect. In some embodiments, multiple distributor flame out channels may correspond to one flame out channel, or multiple flame out channels may correspond to one distributor flame out channel.

For example, referring to fig. 1-4 in combination, the distributor outer side wall 110 and the fire cover outer side wall 210 may rest against each other in a horizontal direction. So arranged, the connection between the fire distributor fire outlet channel 120 and the fire cover fire outlet channel 220 is more stable, and the structural arrangement is more compact and reasonable. In some embodiments, the outer side wall of the distributor and the outer side wall of the fire cover can extend along any other directions, so that the two can be abutted.

For example, referring to FIGS. 1-3, 6 and 7 in combination, the distributor firedischarge passage 120 can be inclined inwardly to outwardly and upwardly. The fire outlet channel 120 of the distributor, which is arranged obliquely upwards, can further increase the length of the fire outlet channel on the basis of not increasing the thickness of the outer side wall 110 of the distributor, so that the occurrence of the conditions of backfire and the like of the burner can be better avoided. Illustratively, the distributor fire outlet channel 120 includes a first distributor fire outlet channel 1201, a second distributor fire outlet channel 1202 and a third distributor fire outlet channel 1203, one or more of which may be disposed at an upward incline, which may be the same or different.

For example, referring to fig. 1-3, 10 and 11 in combination, the fire cover fire exit passage 220 may be disposed obliquely from the inside to the outside and upward. The length of the fire cover fire outlet channel 220 which is arranged obliquely upwards can be further increased on the basis of not increasing the thickness of the outer side wall 210 of the fire cover, and the occurrence of the conditions of backfire and the like of the burner can be better avoided. Illustratively, the fire cover fire exit passage 220 includes a first fire cover fire exit passage 2201, a second fire cover fire exit passage 2202, and a third fire cover fire exit passage 2203, one or more of which may be disposed at an upward incline, which may be the same or different.

Illustratively, referring to FIGS. 2, 6 and 10 in combination, first distributor flame out channel 1201 has an angle α1 with the vertical plane, first cover flame out channel 2201 has an angle α2 with the vertical plane, and α1 may be equal to α2. Further, the arrangement is more convenient for the gas mixture to flow in the main fire hole 310, and the structural arrangement is more reasonable.

Illustratively, referring to fig. 3, 7, and 11 in combination, the second distributor flame out channel 1202 may have an angle α3 with the vertical plane, the second flame out channel 2202 may have an angle α4 with the vertical plane, and α3 may be equal to α4. This arrangement is more convenient for the gas mixture to flow in the flame stabilizing holes 320, and the structural arrangement is more reasonable.

Illustratively, referring to FIGS. 4, 8 and 12 in combination, the third distributor flame out channel 1203 has an angle α5 with the vertical plane, the third cover flame out channel 2203 has an angle α6 with the vertical plane, and α5 may be equal to α6. This arrangement is more convenient for the gas mixture to flow in the fire transfer opening 330, and the structural arrangement is more reasonable. Further, α5 and α6 may be equal to 90 degrees, i.e., the fire transfer openings 330 extend in the horizontal direction.

Illustratively, the cross-sectional area of the fire exit passage in the distributor outer side wall 110 and the fire cover outer side wall 210 on the inner side wall may be greater than or equal to the cross-sectional area of the fire exit passage in the distributor outer side wall 110 and the fire cover outer side wall 210 on the outer side wall. That is, in the case where the distributor outer side wall 110 is located at the inner layer and the fire cover outer side wall 210 is located at the outer layer, the cross-sectional area of the distributor fire outlet channel 120 may be greater than or equal to the cross-sectional area of the fire cover fire outlet channel 220. In the case where the distributor outer side wall 110 is located at the outer layer and the cover outer side wall 210 is located at the inner layer, the cross-sectional area of the cover discharge passage 220 may be greater than or equal to the cross-sectional area of the distributor discharge passage 120. By the arrangement, the fire outlet channel of the inner layer can be guaranteed to provide sufficient gas mixture for the fire outlet channel of the outer layer, so that the combustion effect is guaranteed. In other embodiments, the cross-sectional area of the flame out channel in the outer side wall of the distributor and the outer side wall of the flame cover on the side wall of the inner layer may be smaller than the cross-sectional area of the flame out channel in the outer side wall of the distributor and the outer side wall of the flame cover.

Referring to fig. 2, 6 and 10 in combination, in embodiments in which first distributor fire channel 1201 is a groove and first cover fire channel 2201 is a through hole, first distributor fire channel 1201 has a groove depth D1, and first cover fire channel 2201 has a diameter D2, which may be greater than or equal to D2. The height of the center of the firing end of the first distributor firing channel 1201 is H1, the height of the center of the first fire cover firing channel 2201 is H2, and H2 is greater than H1. In this way, the circulation of the gas mixture in the main fire hole 310 is facilitated.

Referring to fig. 3, 7 and 11 in combination, in embodiments where the second distributor fire outlet channel 1202 and the second fire cover fire outlet channel 2202 are through holes, the diameter of the second distributor fire outlet channel 1202 is D5, the diameter of the second fire cover fire outlet channel 2202 is D6, and D5 may be greater than or equal to D6. The center of the second distributor fire outlet channel 1202 has a height H3 and the center of the second fire cover fire outlet channel 2202 has a height H4, H4 being greater than or equal to H3. In this way, the circulation of the gas mixture in the flame stabilizing holes 320 is facilitated.

Referring to fig. 4, 8 and 12 in combination, in the embodiment where the third distributor fire outlet channel 1203 is a through hole and the third fire cover fire outlet channel 2203 is a fire transfer slot, the height of the center of the third distributor fire outlet channel 1203 is H5 and the height of the center of the third fire cover fire outlet channel 2203 is H6, H6 being greater than H5. In this way, the communication of the gas mixture within the fire transfer opening 330 is facilitated.

Illustratively, one or more of the distributor 10 and the fire cover 20 are made of stainless steel material. The stainless steel material has better stability, is not easy to rust even in environments with higher humidity such as a kitchen, is more resistant to high temperature, can ensure the stability of the structure under the high temperature condition, is not easy to deform, and has better durability. In other embodiments, one or more of the distributor and the fire cover may also be made of other materials.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation terms "inner" and "outer" refer to the inner and outer relative to the outline of the components themselves.

For ease of description, regional relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein to describe regional positional relationships of one or more components or features to other components or features illustrated in the figures. It will be understood that the relative terms of regions include not only the orientation of the components illustrated in the figures, but also different orientations in use or operation. For example, if the element in the figures is turned over entirely, elements "over" or "on" other elements or features would then be included in cases where the element is "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Moreover, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles, which is intended to include all such cases herein).

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, components, assemblies, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. In addition, it will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (14)

1. A burner comprising a fire cover and a distributor, wherein the fire cover is buckled on the distributor and surrounds the distributor to form a gas mixing chamber, the fire cover is provided with a fire cover outer side wall which surrounds the gas mixing chamber and extends downwards, the distributor is provided with a distributor outer side wall which surrounds the gas mixing chamber and extends upwards, the burner is characterized in that,

the fire cover outer side wall is sleeved on the first side of the distributor outer side wall or inserted on the second side of the distributor outer side wall, so that the fire cover outer side wall and the distributor outer side wall have an overlapping area along the vertical direction, the first side and the second side are opposite to each other,

the part of the outer side wall of the distributor corresponding to the overlapping area is provided with a fire outlet channel of the distributor which is internally and externally communicated, and a fire cover fire outlet channel which is communicated with the fire cover outside and inside is arranged on the part, corresponding to the overlapping area, of the outer side wall of the fire cover, and the fire distributor fire outlet channel and the fire cover fire outlet channel are communicated with each other.

2. The burner of claim 1 wherein at least one of the top of the distributor outer side wall and the bottom of the fire cover outer side wall is provided with a plurality of grooves forming fire exit channels in the side wall where they are located.

3. The burner of claim 2, wherein the plurality of grooves are provided on only the inner side wall of the distributor outer side wall and the inner cover outer side wall.

4. The burner of claim 1, wherein the distributor flame out channel comprises a first distributor flame out channel, the flame cover flame out channel comprising a first flame cover flame out channel in communication with the first distributor flame out channel, the first distributor flame out channel and the first flame cover flame out channel forming a main flame hole of the burner.

5. The burner of claim 4, wherein the distributor flame out channel comprises a second distributor flame out channel, the flame cover flame out channel comprises a second flame cover flame out channel in communication with the second distributor flame out channel, the second distributor flame out channel and the second flame cover flame out channel forming a flame stabilizing hole of the burner, the flame stabilizing hole being located below the main flame hole.

6. The burner of claim 5, wherein the second distributor flame out channel and the second flame cover flame out channel are through holes.

7. The burner of claim 5, wherein the burner comprises a plurality of main combustion zones and a plurality of rack-avoiding combustion zones alternately arranged in a circumferential direction of the burner, the main fire holes being located in the plurality of main combustion zones,

the fire distributor fire outlet channel comprises a third fire distributor fire outlet channel, the fire cover fire outlet channel comprises a third fire cover fire outlet channel communicated with the third fire distributor fire outlet channel, the third fire distributor fire outlet channel and the third fire cover fire outlet channel are both arranged in the plurality of pot rack avoiding combustion areas to form a fire transfer opening,

and the maximum dimension of at least one of the third fire distributor fire outlet channel and the third fire cover fire outlet channel along the vertical direction is smaller than the maximum dimension of the main fire hole along the vertical direction.

8. The burner of claim 7 wherein the outer ones of the third distributor flame out channel and the third flame out channel are flame out channels extending in the circumferential direction.

9. A burner as claimed in claim 8, wherein,

the fire outlet channels of the third fire distributor and the fire outlet channels of the third fire cover are through holes, and the aperture of each through hole is larger than or equal to the width of the fire transfer groove.

10. The burner of claim 7, wherein the plurality of distributor fire channels and the plurality of cover fire channels in the plurality of primary combustion zones are in one-to-one correspondence.

11. The burner of claim 1 wherein said distributor outer side wall and said fire cover outer side wall abut each other in a horizontal direction.

12. The burner of claim 1 wherein the flame-out channel of the flame divider is inclined inwardly to outwardly and upwardly; and/or

The fire outlet channel of the fire cover is obliquely arranged from inside to outside and upwards.

13. The burner of claim 1 wherein the cross-sectional area of the flame path on the inner side of the distributor outer side wall and the flame cover outer side wall is greater than or equal to the cross-sectional area of the flame path on the outer side of the distributor outer side wall and the flame cover outer side wall.

14. The burner of claim 1, wherein one or more of the distributor and the fire cover are made of a stainless steel material.

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