CN110617477B

CN110617477B - Burner with a burner head

Info

Publication number: CN110617477B
Application number: CN201910874524.6A
Authority: CN
Inventors: 张炳卫; 唐松茂; 李国�; 刘玉龙
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2021-03-19
Anticipated expiration: 2039-09-17
Also published as: CN110617477A

Abstract

The invention discloses a burner, comprising: the gas distribution plate comprises a bottom wall, an inner side wall and an outer side wall, the inner side wall is connected to the inner side edge of the bottom wall, the outer side wall is connected to the outer side edge of the bottom wall, the inner side wall and the outer side wall extend towards the same side of the bottom wall, and at least one of the wall surfaces, far away from each other, of the outer side wall and the inner side wall is provided with a groove; outer fire lid, outer fire lid is located divide on the gas dish just outer fire lid is detained and is established the inside wall with the outside of lateral wall, outer fire is covered and is equipped with out the fire hole. According to the combustor provided by the embodiment of the invention, the groove is arranged on at least one of the wall surfaces which are far away from each other in the outer side wall and the inner side wall, so that the flow speed of the gas flowing into the groove can be reduced, the flowing of the gas is hindered, the sealing effect of the combustor is improved, the safety of a user is protected, a sealing element is not required to be arranged independently, the structure is simple, and the cost is low.

Description

Burner with a burner head

Technical Field

The invention relates to the technical field of gas stoves, in particular to a burner.

Background

In the related art, gas cookers are provided with a burner to inject gas and air in a certain manner for mixed combustion. In some burners, the outer fire cover and the gas distribution plate have good sealing effect, but the structure is complex and the cost is high.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a combustor, which aims to improve the sealing effect of the combustor and reduce the cost.

A burner according to an embodiment of the present invention includes: the gas distribution plate comprises a bottom wall, an inner side wall and an outer side wall, the inner side wall is connected to the inner side edge of the bottom wall, the outer side wall is connected to the outer side edge of the bottom wall, the inner side wall and the outer side wall extend towards the same side of the bottom wall, and at least one of the wall surfaces, far away from each other, of the outer side wall and the inner side wall is provided with a groove; outer fire lid, outer fire lid is located divide on the gas dish just outer fire lid is detained and is established the inside wall with the outside of lateral wall, outer fire is covered and is equipped with out the fire hole.

According to the combustor provided by the embodiment of the invention, the groove is arranged on at least one of the wall surfaces which are far away from each other in the outer side wall and the inner side wall, so that the flow speed of the gas flowing into the groove can be reduced, the flowing of the gas is hindered, the sealing effect of the combustor is improved, the safety of a user is protected, a sealing element is not required to be arranged independently, the structure is simple, and the cost is low.

In some embodiments, the groove comprises a plurality of segments of sub-grooves spaced apart in a circumferential direction on the wall surface.

In some embodiments, the groove is formed in a ring shape and extends around a circumference of the wall surface.

In some embodiments, the groove includes a plurality of grooves arranged at intervals in a vertical direction.

In some embodiments, the outer fire cover is provided with a projection which is matched with the groove, and at least one part of the projection can be accommodated in the groove.

Specifically, the protrusions include a plurality of protrusions that are arranged at intervals around the circumference of the outer fire cover.

In some embodiments, an inner wall surface of the inner side wall adjacent to the center of the air distribution plate is formed as an inner inclined wall surface, and the inner inclined wall surface is obliquely arranged upwards and inwards from the bottom wall.

Specifically, an outer wall surface of the outer side wall, which is far away from the center of the air distribution plate, is formed as an outer inclined wall surface, and the outer inclined wall surface is obliquely arranged upwards and outwards from the bottom wall.

Further, the included angle between the outer inclined wall and the horizontal plane is smaller than the included angle between the inner inclined wall and the horizontal plane.

In some alternative embodiments, the length of the outer sloped wall is less than the length of the inner sloped wall.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

FIG. 2 is a partial cross-sectional view of a burner according to an embodiment of the present invention;

FIG. 3 is a perspective view of a burner, a liquid bearing disk and a burner in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a burner, a liquid bearing disk and a burner in an embodiment of the present invention;

fig. 5 is a perspective view of a burner (including an inner fire cover) in an embodiment of the present invention.

Reference numerals:

a burner 100,

The air distribution plate 1, the bottom wall 11, the inner side wall 12, the inner inclined wall 121, the outer side wall 13, the outer inclined wall 131, the groove 14, the inner ring 16, the communicating pipe 17,

An outer fire cover 2, a fire outlet 21, a bulge 22,

An inner fire cover 3, a fire spraying hole 31,

A liquid bearing disc 200,

A burner 300.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "center", "length", "circumferential", "horizontal", "vertical", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A combustor 100 according to an embodiment of the present invention is described below with reference to fig. 1-5.

The burner 100 according to an embodiment of the present invention, as shown in fig. 1 and 2, includes: a gas distribution plate 1 and an outer fire cover 2. The gas distribution plate 1 comprises a bottom wall 11, an inner side wall 12 and an outer side wall 13, wherein the inner side wall 12 is connected to the inner side edge of the bottom wall 11, the outer side wall 13 is connected to the outer side edge of the bottom wall 11, the inner side wall 12 and the outer side wall 13 extend towards the same side of the bottom wall 11, and at least one of the wall surfaces, far away from each other, of the outer side wall 13 and the inner side wall 12 is provided with a groove. Outer fire lid 2 is located and is divided on the gas dish 1 and outer fire lid 2 is detained and establish in the outside of inside wall 12 and lateral wall 13, is equipped with out fire hole 21 on outer fire lid 2.

It will be appreciated that the outer wall of the outer side wall 13 may be provided with a groove 14, here referred to the centre of the gas distributor plate 1, inwardly towards the centre thereof and outwardly away from the centre thereof. When the outer wall of the outer side wall 13 is provided with the groove 14, and the outer fire cover 2 is buckled on the inner wall of the inner side wall 12 and the outer wall of the outer side wall 13, the groove 14 is formed on the matching surface of the outer fire cover 2 and the outer side wall 13, and the sealing effect of the combustor 100 can be improved due to the arrangement of the groove 14. The outer fire cover 2 and the outer wall of the outer side wall 13 can be in interference fit or clearance fit.

For example, when outer fire lid 2 is clearance fit with the outer wall of lateral wall 13, be equipped with out fire hole 21 because of outer fire lid 2, the gas can be lighted after going out fire hole 21 and flowing, the gas probability that flows to the clearance is very little, if the gas flows into in the clearance, pressure when it flows to recess 14 can significantly reduce, make its speed that continues down to flow can greatly reduced, recess 14 has played the effect of hindrance to the flow of gas promptly, can prevent the continuation of gas to flow, thereby can promote the sealed effect of combustor 100. For example, when the outer fire cover 2 is in interference fit with the outer wall of the outer side wall 13, the probability that the fuel gas flows to the fitting surface is lower, the sealing effect of the burner 100 is good, and the sealing effect of the burner 100 can be further improved by the arrangement of the groove 14. In addition, the combustor 100 of the embodiment of the invention can improve the sealing effect through the ingenious design that the grooves 14 are formed on the outer fire cover 2, does not need to be separately provided with a sealing element, has a simple structure and reduces the cost.

Of course, the present invention is not limited to this, the inner wall of the inner sidewall 12 may be provided with a groove 14, and the outer fire cover 2 may be in interference fit with the inner wall of the inner sidewall 12, or may be in clearance fit. The function and effect of the grooves 14 on the inner wall of the inner side wall 12 are the same as the function and effect of the grooves 14 on the outer wall of the outer side wall 13, and will not be described in detail.

Further, alternatively, the inner wall of the inner wall surface and the outer wall of the outer side wall 13 may be provided with the grooves 14, whereby the sealing effect of the burner 100 can be further improved.

According to the burner 100 of the embodiment of the invention, the groove 14 is arranged on at least one of the wall surfaces which are far away from each other in the outer side wall 13 and the inner side wall 12, so that the flow velocity of the gas flowing into the groove 14 can be reduced, the flowing of the gas is hindered, the sealing effect of the burner 100 is improved, the safety of a user is protected, a sealing element is not required to be arranged independently, the structure is simple, and the cost is low.

In some embodiments, the groove 14 includes multiple segments of sub-grooves 14, the segments of sub-grooves 14 being spaced apart in a circumferential direction on the wall surface. It can be understood that the arrangement of the multi-segment sub-grooves 14 can enable the matching surface of the outer fire cover 2 and the gas distribution plate 1 to be provided with a plurality of grooves 14 for limiting the flow of gas, and the acting surface of the grooves 14 is improved. In addition, the multi-section sub-grooves 14 are arranged on the wall surface at intervals along the circumferential direction, so that the rigidity of the outer fire cover 2 can be improved, the influence of the grooves 14 on the structural strength of the outer fire cover 2 is reduced, and the deformation of the outer fire cover 2 is reduced as much as possible.

In some embodiments, the groove 14 is formed in a ring shape and extends around the circumference of the wall surface. It can be understood that the annular groove 14 is convenient to process, and can be formed in one step, that is, the processing of the annular groove 14 can be completed in one step, so that the processing efficiency can be improved, and the time cost can be saved. In addition, the groove 14 extends around the circumferential direction of the wall surface, so that the circumferential sealing performance of the wall surface can be improved, and the air leakage can be reduced as much as possible.

In some embodiments, the groove 14 includes a plurality that is spaced apart in the vertical direction. The plurality of grooves 14 arranged at intervals in the vertical direction can play multiple blocking roles on the flow of the fuel gas, and the sealing effect of the burner 100 can be further improved.

In some embodiments, as shown in fig. 2, the outer fire cover 2 is provided with a protrusion 22 that mates with the groove 14, and at least a portion of the protrusion 22 is receivable within the groove 14. Through the cooperation each other of recess 14 and arch 22 can play fixed, limiting displacement to the installation of outer fire lid 2 and gas distribution dish 1 like this, hinder outer fire lid 2 towards keeping away from the direction motion of gas distribution dish 1, improve the assembly steadiness of outer fire lid 2 and gas distribution dish 1, improve combustor 100's security. For example, in the transportation process of the burner 100, vibration generated by a vehicle can be transmitted to the burner 100, so that the outer fire cover 2 is easily loosened, and for example, in the working process of the burner 100, gas can generate a certain acting force on the outer fire cover 2, so that the outer fire cover 2 is also loosened after long-term use, and the assembly structure of the outer fire cover 2 and the gas distribution plate 1 in the embodiment of the invention is novel and reliable, so that the outer fire cover 2 can be firmly buckled with the gas distribution plate 1, and hidden troubles caused by the loosening of the outer fire cover 2 can be reduced as much as possible.

Specifically, as shown in fig. 1, the projection 22 includes a plurality of projections 22, and the plurality of projections 22 are provided at intervals around the circumference of the outer fire cover 2. It can be understood that the arrangement of the plurality of protrusions 22 can further improve the assembling stability of the outer fire cover 2 and the gas distribution plate 1, and improve the fatigue resistance at the protrusions 22. For example, the plurality of protrusions 22 may share the external force applied to the protrusions 22, such that the force is distributed to each protrusion 22, reducing the force carried by the individual protrusions 22 and increasing the fatigue life of the product. It should be noted that the external force applied to the protrusion 22 may be an impact force transmitted to the burner 100 by a vehicle during transportation, or may be a pressure generated by the gas on the outer fire cover 2. In addition, the protrusions 22 are spaced around the outer fire cover 2 in the circumferential direction, so that the external force acting on the outer fire cover 2 can be dispersed to the protrusions 22 spaced along the circumferential direction, for example, if a plurality of protrusions 22 are concentrated at one position, the acting force is concentrated at the position, which may affect the reliability of the fit between the outer fire cover 2 and the gas distributor 1.

In some embodiments, as shown in fig. 1 and 2, the inner wall surface of the inner side wall 12 adjacent to the center of the gas distribution plate 1 is formed as an inner inclined wall surface 121, and the inner inclined wall surface 121 is disposed obliquely upward and inward from the bottom wall 11. It can be understood that the inner inclined wall surface 121 can guide the flow of air, so that the air flows out along the inner inclined wall surface 121, secondary air is supplemented for gas combustion, the combustion is more sufficient, the emission of carbon monoxide is reduced, the personal safety is protected, and the heat efficiency can be improved.

Specifically, as shown in fig. 1 and 2, an outer wall surface of the outer wall 13 away from the center of the air distributor 1 is formed as an outer inclined wall surface 131, and the outer inclined wall surface 131 is inclined upward and outward from the bottom wall 11. It will be appreciated that the provision of the inclined surface on the one hand makes the burner 100 flat, so that the layout of the burner 100 is more compact and aesthetically pleasing. On the other hand, as shown in fig. 3 and 4, when the burner 100, the liquid bearing disc 200 and the burner head 300 are assembled for operation, the arrangement of the outer inclined surface can increase the gap between the burner 100 and the liquid bearing disc 200, increase the flux of air, facilitate the air to flow from outside to inside, and supplement secondary air for gas combustion.

Of course, in other embodiments, the burner 100 may also be located on the panel, and the arrangement of the outer inclined surface may also increase the gap between the burner 100 and the panel to achieve the above-mentioned functions.

Further, as shown in fig. 1 and 2, the angle between the outer inclined wall and the horizontal plane is smaller than the angle between the inner inclined wall and the horizontal plane. Like this the air from the outer slope wall flow income combustor 100, when flowing out along interior sloping arm, the velocity of flow experience of air accelerates to gentle process, and the contained angle of outer sloping wall and horizontal plane is little promptly, and the air is here the velocity of flow increase, and the contained angle of interior sloping wall and horizontal plane is big, and the air is here the velocity of flow and reduces to make the air steadily flow out, make air and gas intensive mixing, burning, it is big to reduce air flow rate and lead to gas flame to rock the condition of even extinguishing.

In some alternative embodiments, as shown in fig. 1 and 2, the length of the outer sloped wall is less than the length of the inner sloped wall. Thus, when the air flows into the burner 100 from the outer inclined wall and flows out along the inner inclined wall, the wall surface can well guide the flow of the air because the length of the inner inclined wall is greater than that of the outer inclined wall, thereby reducing the residence time of the air in the burner 100 and being beneficial to improving the mixing rate of the air and the fuel gas.

In some alternative embodiments, as shown in fig. 4 and 5, the burner 100 further includes an inner fire cover 3, and the inner fire cover 3 is provided with fire ejecting holes 31. The gas distribution plate 1 further comprises an inner ring 16 and a communicating pipe 17, the inner ring 16 is connected with the inner side wall 12 through the top wall of the communicating pipe 17, and the inner fire cover 3 is arranged on the gas distribution plate 1 and buckled outside the inner ring 16. It can be understood that, when the burner 100, the liquid bearing disc 200 and the burner 300 are assembled for operation, the burner gas in the burner 300 can enter the passage defined by the outer fire cover 2 and the gas distribution disc 1 through the communicating pipe 17, and the burner gas in the burner 300 can also directly enter the passage defined by the inner fire cover 3 and the inner ring 16, so that the gas can flow out from the fire outlet holes 21, and the gas can also flow out from the fire ejecting holes 31, thereby increasing the fire output of the burner 100 and improving the operation efficiency of the burner 100.

The combustor 100 in one embodiment of the present invention is described below with reference to fig. 1-2.

According to an embodiment of the present invention, the burner 100 according to an embodiment of the present invention includes: gas distribution plate 1, outer fire lid 2 and interior fire lid 3.

The gas distribution plate 1 comprises a bottom wall 11, an inner side wall 12 and an outer side wall 13, wherein the inner side wall 12 is connected to the inner side edge of the bottom wall 11, the outer side wall 13 is connected to the outer side edge of the bottom wall 11, and the inner side wall 12 and the outer side wall 13 extend towards the same side of the bottom wall 11, wherein the center of the gas distribution plate 1 is taken as a reference, the inner side wall faces the center of the gas distribution plate, and the outer side. The inner wall surface of the inner wall 12 is formed as an inner inclined wall surface 121, and the inner inclined wall surface 121 is inclined inward from the bottom wall 11. The outer wall surface of the outer wall 13 is formed as an outer inclined wall surface 131, and the outer inclined wall surface 131 is inclined upward and outward from the bottom wall 11. The included angle between the outer inclined wall and the horizontal plane is smaller than the included angle between the inner inclined wall and the horizontal plane. The length of the outer sloped wall is less than the length of the inner sloped wall. Grooves 14 are formed in the outer wall of the outer side wall 13 and the inner wall of the inner side wall 12, and the grooves 14 are formed in a ring shape and extend around the circumferential direction of the wall surface.

Outer fire lid 2 is located and is divided on the gas dish 1 and outer fire lid 2 is detained and establish in the outside of inside wall 12 and lateral wall 13, is equipped with out fire hole 21 on outer fire lid 2. The outer fire cover 2 is provided with a protrusion 22 which is matched with the groove 14, and the protrusion 22 can be accommodated in the groove 14. The projections 22 include a plurality of projections 22, and the plurality of projections 22 are provided at intervals around the circumference of the outer fire cover 2.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A burner, comprising:

the gas distribution plate comprises a bottom wall, an inner side wall and an outer side wall, wherein the inner side wall is connected to the inner side edge of the bottom wall, the outer side wall is connected to the outer side edge of the bottom wall, the inner side wall and the outer side wall extend towards the same side of the bottom wall, at least one of the wall surfaces, far away from each other, of the outer side wall and the inner side wall is provided with a groove, the inner wall surface, close to the center of the gas distribution plate, of the inner side wall is formed into an inner inclined wall surface, and the inner inclined wall surface is obliquely arranged upwards and inwards from; outer fire lid, outer fire lid is located divide on the gas dish just outer fire lid is detained and is established the inside wall with the outside of lateral wall, the at least part of outer fire lid covers completely the recess, outer fire is covered and is equipped with out the fire hole.

2. The burner of claim 1, wherein the groove comprises a plurality of segments of sub-grooves spaced apart in a circumferential direction on the wall surface.

3. The burner of claim 1, wherein the groove is formed in an annular shape and extends circumferentially around the wall surface.

4. The burner of claim 1, wherein the groove comprises a plurality of grooves spaced apart in a vertical direction.

5. The burner of claim 1 wherein the outer flame cover is provided with a projection that mates with the recess, at least a portion of the projection being receivable within the recess.

6. The burner of claim 5, wherein the protrusion comprises a plurality of protrusions disposed at spaced intervals around a circumference of the outer fire cover.

7. The burner according to claim 1, wherein an outer wall surface of the outer side wall, which is away from the center of the gas distributor, is formed as an outer inclined wall surface that is inclined upward and outward from the bottom wall.

8. The burner of claim 7, wherein the angle of the outer angled wall from horizontal is less than the angle of the inner angled wall from horizontal.

9. The burner of claim 7, wherein the length of the outer angled wall is less than the length of the inner angled wall.