CN111649326A

CN111649326A - Burner and integrated cooker

Info

Publication number: CN111649326A
Application number: CN202010484025.9A
Authority: CN
Inventors: 艾穗江; 苏东明
Original assignee: Guangdong Macro Gas Appliance Co Ltd; Guangdong Wanjiale Kitchen Technology Co Ltd
Current assignee: Guangdong Macro Gas Appliance Co Ltd; Guangdong Wanjiale Kitchen Technology Co Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-09-11

Abstract

The invention creatively discloses a burner, comprising: the base is provided with an outer ring gas mixing channel and an inner ring gas mixing channel, and a through air channel is arranged in the inner ring gas mixing channel; the furnace end is arranged on the base and is provided with an outer ring part communicated with the outer ring gas mixing channel and an inner ring part communicated with the inner ring gas mixing channel; the outer fire cover is covered on the outer ring part, and a plurality of outer fire holes are formed in the outer fire cover; the central fire cover is covered on the inner ring part, a central through hole is formed in the central fire cover and communicated with the air channel, a plurality of boundary channels are arranged on the periphery of the central through hole, the boundary channels are communicated with the central through hole, and a plurality of inner fire holes are formed in the central fire cover outside the boundary channels. Compared with the prior art, the burner can effectively supply secondary air through the air channel, so that gas can be more fully combusted. Meanwhile, the invention also provides an integrated cooker applying the burner.

Description

Burner and integrated cooker

Technical Field

The invention relates to the field of cookers, in particular to a burner and an integrated cooker.

Background

The combustor of current integrated kitchen is mostly direct fire combustor, its structure with the direct fire combustor on the traditional cooking utensils is similar basically, nevertheless because lampblack absorber in the integrated kitchen is nearer apart from the combustor, therefore the secondary air supply volume of combustor can receive the influence of lampblack absorber and reduce, makes it can't carry out abundant burning to the gas to cause the waste of gas resource, and the gas of insufficient combustion forms the carbon deposit at the bottom of a boiler easily, influences the subsequent use of cooking utensil.

Disclosure of Invention

The present invention is conceived to solve at least one of the technical problems occurring in the prior art, and to this end, the present invention provides a burner.

The invention also provides an integrated cooker with the burner.

According to a first aspect of the invention, a burner comprises:

the base is provided with an outer ring gas mixing channel and an inner ring gas mixing channel, the outer ring gas mixing channel is communicated with an outer ring injection channel, the inner ring gas mixing channel is communicated with an inner ring injection channel, and a through air channel is arranged in the inner ring gas mixing channel;

the furnace end is arranged on the base and is provided with an outer ring part and an inner ring part, the outer ring part is communicated with the outer ring gas mixing channel, the inner ring part is communicated with the inner ring gas mixing channel, and the furnace end is provided with a plurality of side air inlets;

the outer fire cover covers the outer ring part, and a plurality of outer fire holes are formed in the outer fire cover;

the central fire cover covers the inner ring part, a central through hole is formed in the central fire cover and is communicated with the air channel, a plurality of boundary channels are formed in the periphery of the central through hole of the central fire cover, and the boundary channels are communicated with the central through hole; the central fire cover is provided with a plurality of inner fire holes outside the boundary channel.

The burner according to the embodiment of the invention has at least the following advantages: the outer fire cover can supply secondary air from the air channel through a boundary channel on the central fire cover to meet the secondary air requirement of the outer fire cover during working; compared with the prior art, the burner can effectively supply secondary air, so that gas can be more fully combusted.

According to some embodiments of the invention, the furnace end is provided with a middle part used for mounting components between the outer fire part and the inner fire part, and the bottom surface of the middle part is provided with a plurality of bottom air inlets.

According to some embodiments of the invention, a bottom gap is provided between the bottom surface of the burner and the base, and all bottom air inlets are communicated with the bottom gap.

According to some embodiments of the invention, the furnace head is provided with a plurality of side air inlets, and all the side air inlets penetrate through the outer ring part and are communicated with the middle part.

According to some embodiments of the invention, the central fire cover is located at a position lower than the outer fire covers.

According to some embodiments of the invention, the upper surface of the outer fire cover is an inner conical surface with a slope of between 20 degrees and 40 degrees.

According to some embodiments of the invention, the upper surface of the central fire cover is an inner conical surface with a slope of 30-60 degrees, and all the inner fire holes are vertically upward.

According to some embodiments of the invention, each of the outer ring injection passage and the inner ring injection passage includes a straight section, an expansion section and a transition section, the expansion section is connected between the straight section and the transition section, and the flow area in the expansion section is gradually increased from the straight section to the transition section.

According to some embodiments of the invention, the transition section is formed by scanning a plurality of circular arc curves, and the intersection point between two adjacent circular arc curves is consistent with G2.

The integrated cooker according to the second aspect embodiment of the invention comprises the burner described above.

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 a schematic perspective view of a burner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the burner shown in FIG. 1 taken along line A-A;

fig. 3 is a schematic perspective view of a base according to an embodiment of the present invention;

FIG. 4 is a front view of the base shown in FIG. 3;

fig. 5 is a schematic perspective view of a burner according to an embodiment of the present invention;

FIG. 6 is a top view of the burner shown in FIG. 5;

FIG. 7 is a schematic perspective view of a fire center cover according to an embodiment of the present invention;

fig. 8 is a left side view of the center fire cover shown in fig. 7.

Detailed Description

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

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as up, down, front, rear, left, right, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the invention, the meaning of a plurality of the terms is one or more, the meaning of a plurality of the terms is two or more, and the terms larger, smaller, larger, etc. are understood to include no essential numbers, and the terms larger, smaller, etc. are understood to include essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly defined, terms such as setup, installation, connection, and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention in combination with the detailed contents of the technical solutions.

As shown in fig. 1 and 2, the burner according to the embodiment of the first aspect of the present invention includes a base 100, a burner 200, an outer burner cap 300 and a central burner cap 400, wherein the base 100 is provided with an outer ring injection passage 510 and an inner ring injection passage 520, so that gas and air can be mixed therein and form mixed gas, and the air is called primary air; the burner 200 is installed on the base 100, the outer fire cover 300 and the central fire cover 400 are respectively covered on the burner 200, a plurality of outer fire holes 310 are formed in the outer fire cover 300, a plurality of inner fire holes 410 are formed in the central fire cover 400, mixed gas can be combusted in the outer fire holes 310 of the outer fire cover 300 and the inner fire holes 410 of the central fire cover 400, air is supplied from the periphery of a combustor in the combustion process of the mixed gas, and the air is called as secondary air.

As shown in fig. 2 to 4, specifically, the base 100 is provided with an outer ring air mixing channel 110 and an inner ring air mixing channel 120, the setting height of the inner ring air mixing channel 120 is higher than the setting height of the outer ring air mixing channel 110, the setting height of the outer ring air mixing channel 110 is higher than the mounting surface 130 of the base 100, and the mounting surface 130 of the base 100 specifically refers to a surface that is mounted and connected with the burner 200; the outer ring gas mixing passage 110 is not directly communicated with the inner ring gas mixing passage 120, the outer ring gas mixing passage 110 is communicated with the outer ring injection passage 510, and the inner ring gas mixing passage 120 is communicated with the inner ring injection passage 520. In order to increase the supply amount of the secondary air, an air passage 121 which is through from top to bottom is arranged in the inner ring air mixing passage 120, the air passage 121 is positioned at the center of the inner ring air mixing passage 120, the setting height of the air passage 121 is higher than that of the inner ring air mixing passage 120, and the air passage 121 is not directly communicated with the outer ring air mixing passage 110 and the inner ring air mixing passage 120.

As shown in fig. 2, 5 and 6, specifically, a first limiting ring 240 extending downward is disposed on a bottom surface of the burner 200, an outer dimension of the first limiting ring 240 is consistent with an inner dimension of the outer ring gas mixing channel 110, so that the burner 200 can be limited and mounted on the outer ring gas mixing channel 110 through the first limiting ring 240, at this time, a top surface of the outer ring gas mixing channel 110 abuts against the bottom surface of the burner 200, and since the outer ring gas mixing channel 110 is disposed at a height higher than the mounting surface 130 of the base 100, a bottom gap 600 is left between the burner 200 and the base 100 when the burner is mounted. The burner 200 is provided with an outer ring part 210, an intermediate part 230 and an inner ring part 220, wherein the outer ring part 210 and the inner ring part 220 are provided with communication holes, so that the outer ring part 210 can be communicated with the outer ring gas mixing channel 110, and the inner ring part 220 can be communicated with the inner ring gas mixing channel 120; the outer ring portion 210 is used for placing the outer fire cover 300, and the inner ring portion 220 is used for placing the central fire cover 400, so that the mixed gas in the outer ring gas mixing channel 110 can be combusted on the outer fire hole 310 of the outer fire cover 300, and the mixed gas in the inner ring gas mixing channel 120 can be combusted on the inner fire hole 410 of the central fire cover 400. A second limit ring 221 is disposed in the inner ring portion 220, and an inner dimension of the second limit ring 221 is consistent with an outer dimension of the air channel 121, so that the air channel 121 can pass through the second limit ring 221 from bottom to top and a top surface of the inner ring air mixing channel 120 abuts against the second limit ring 221, and at this time, the air channel 121 protrudes from the inner ring portion 220. Since the intermediate portion 230 is located between the outer ring portion 210 and the inner ring portion 220, the internal temperature thereof is not high, and thus the intermediate portion 230 can be used to mount components such as an igniter, a thermal sensor, and the like.

In some embodiments of the present invention, in order to further increase the supply amount of the secondary air, two side air inlets 250 are formed in the burner 200, and the two side air inlets 250 sequentially pass through two side walls of the outer ring portion 210 and finally communicate with the middle portion 230, so that the secondary air can enter the middle portion 230 from the side air inlets 250. In addition, two bottom air inlets 231 are opened on the bottom surface of the middle portion 230, and all the bottom air inlets 231 are communicated with the bottom gap 600, so that the secondary air can enter the middle portion 230 from the bottom air inlets 231. It is to be understood that the number of the side intake ports 250 and the bottom intake port 231 is not limited by the invention, and the number of the side intake ports 250 and the bottom intake port 231 may be one, three, or the like, but is not limited thereto.

As shown in fig. 2, 7 and 8, specifically, a central through hole 420 is provided on the central fire cover 400, an inner dimension of the central through hole 420 is identical to an outer dimension of the air channel 121, and when the central fire cover 400 is covered on the inner ring part 220, the air channel 121 can be located in the central through hole 420 because the air channel 121 protrudes from the inner ring part 220, so that the central through hole 420 is communicated with the air channel 121. Meanwhile, the central fire cover 400 is provided with four boundary channels 430 at the periphery of the central through hole 420, and the four boundary channels 430 are all communicated with the central through hole 420. It is understood that the communication relationship between the boundary channel 430 and the central through hole 420 means that the two have a broad communication relationship, i.e., the secondary air can flow from the central through hole 420 to the boundary channel 430, or the secondary air can flow from the boundary channel 430 to the central through hole 420. In the actual combustion process, if the secondary air required by the outer fire cover 300 during combustion is insufficient, the outer fire cover 300 consumes the secondary air in the middle part 230, so that the pressure of the middle part 230 is reduced to be lower than the atmospheric pressure, and the secondary air in the central passage flows to the middle part 230 along the boundary passage 430 on the central fire cover 400 and supplies the outer fire cover 300; conversely, if the center fire cover 400 is burning with insufficient secondary air, and the pressure at the center fire cover 400 is reduced to below atmospheric pressure, the secondary air in the middle portion 230 and the secondary air in the air passage 121 will replenish the center fire cover 400. It is understood that the number of the boundary channels 430 may also be two, three, etc., without being limited thereto.

In order to enable the central fire cover 400 to gather flames to reduce the influence of the range hood thereon, the upper surface of the central fire cover 400 is an inner tapered surface having a slope of between 30 and 60 degrees. Further, in order to ignite the central fire cover 400, a plurality of ignition holes 411 are formed in the outer side wall of the central fire cover 400, two of the ignition holes 411 are respectively and directly communicated with two of the inner fire holes 410, the rest of the ignition holes 411 are indirectly communicated with the inner fire holes 410, the two ignition holes 411 directly communicated with the inner fire holes 410 are linearly arranged back to back, and the arrangement positions of the ignition holes 411 directly communicated with the inner fire holes 410 correspond to the arrangement positions of an igniter (not shown in the drawing) of the middle portion 230. It should be noted that, in order to avoid affecting the fluidity of the secondary air on the boundary channel 430, the boundary channel 430 is not provided with the inner fire holes 410. It is understood that the inner fire holes 410 may be a circular hole structure, or may be an elongated slot structure, and both structures of the inner fire holes 410 are within the protection scope of the present invention.

In order to enable the outer fire cover 300 to effectively resist the influence of the range hood and reduce the probability of flame leaving of the outer fire cover 300, the upper surface of the outer fire cover 300 is an inner conical surface with an inclination between 20 degrees and 40 degrees, and the position of the outer fire cover 300 is higher than that of the central fire cover 400, so that the energy-gathering effect of the outer fire ring on the inner fire ring is realized, and the fuel gas can be concentrated at the bottom of the pot for burning. Since the specific structure of the outer fire lid 300 has been fully disclosed in my prior patent application (publication No. CN110671701A), the present invention will not be described in detail in its specific structure. In addition, in order to prevent the outer fire rings from interfering with the inner fire rings, the center fire cover 400 is provided with a plurality of inner fire holes 410 which are vertically upward.

Through the above arrangement, combustion supporting can be performed on the outer fire cover 300 and the central fire cover 400 as long as secondary air enters the middle part 230, or combustion supporting can be performed on the outer fire cover 300 and the central fire cover 400 as long as secondary air enters the central fire cover 400 through the air passage 121.

It should be noted that, as literally stated, the above-mentioned member with the inner ring is located inside the member with the outer ring.

The existing injection pipe structure mostly mixes gas and air in a straight pipe, and then the mixed gas directly collides with the inner wall of the pipe at a corner and flows upwards, so that the kinetic energy loss of the mixed gas can be caused by the injection pipe structure, and the fire behavior of a combustor is weakened. In some embodiments of the present invention, as shown in fig. 3 and 4, in order to reduce the kinetic energy loss of the gas and air in the ejector pipe, the outer ring ejector channel 510 and the inner ring ejector channel 520 each include a straight section 501, an expanding section 502, and a transition section 503, wherein the straight section 501 is a gas inlet end, the transition section 503 is connected to the respective gas mixing channel, and the expanding section 502 is connected between the straight section 501 and the transition section 503. The flow area in the expansion section 502 is gradually increased from the straight section 501 to the transition section 503, the specific expansion angle of the expansion section 502 is 6-8 degrees, and after the gas and the air are initially mixed in the straight section 501, the flow rate of the mixed gas in the expansion section 502 is slowed down, so that the mixing effect is further improved; in addition, the transition section 503 is formed by scanning multiple arc curves, and the intersection point between two adjacent arc curves conforms to G2 and is continuous, so that the arrangement is favorable for mixed gas to flow from the transition section 503 to respective gas mixing channels, so as to slow down kinetic energy loss caused by impact between the mixed gas and the inner wall of the pipe, effectively enhance the fire behavior of the burner, and reduce the influence of the range hood on the mixed gas.

The integrated cooker according to the second aspect of the present invention includes the burner according to the first aspect of the present invention, and since the integrated cooker adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A burner, comprising:

the furnace end is arranged on the base and is provided with an outer ring part and an inner ring part, the outer ring part is communicated with the outer ring gas mixing channel, and the inner ring part is communicated with the inner ring gas mixing channel;

2. The burner of claim 1, wherein: the furnace end is provided with a middle part used for mounting components between the outer fire part and the inner fire part, and the bottom surface of the middle part is provided with a plurality of bottom air inlets.

3. The burner of claim 2, wherein: and a bottom gap is formed between the bottom surface of the furnace end and the base, and all bottom air inlets are communicated with the bottom gap.

4. The burner of claim 2, wherein: the furnace end is provided with a plurality of side air inlets, and all the side air inlets penetrate through the outer ring part and are communicated with the middle part.

5. The burner of claim 1, wherein: the central fire cover is positioned lower than the outer fire cover.

6. The burner of claim 1 or 5, wherein: the upper surface of the outer fire cover is an inner conical surface with the inclination of 20 degrees to 40 degrees.

7. The burner of claim 1 or 5, wherein: the upper surface of the central fire cover is an inner conical surface with the inclination of 30-60 degrees, and all the inner fire holes are vertically arranged upwards.

8. The burner of claim 1, wherein: the outer ring draws and penetrates the passageway with the inner ring draws and penetrates the passageway and all include straight section, expansion section and changeover portion, the expansion section is connected straight section with between the changeover portion, the through flow area in the expansion section is crescent from straight section to changeover portion.

9. The burner of claim 8, wherein: the transition section is formed by scanning a plurality of sections of circular arc curves, and the intersection point between two adjacent sections of circular arc curves is continuous according to G2.

10. Integrated kitchen, its characterized in that: comprising a burner according to any one of claims 1 to 9.