CN109000242B - Burner with a burner head - Google Patents
Burner with a burner head Download PDFInfo
- Publication number
- CN109000242B CN109000242B CN201811027340.8A CN201811027340A CN109000242B CN 109000242 B CN109000242 B CN 109000242B CN 201811027340 A CN201811027340 A CN 201811027340A CN 109000242 B CN109000242 B CN 109000242B
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- China
- Prior art keywords
- inner ring
- outer ring
- bearing surface
- air inlet
- injection pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention discloses a combustor. The combustor is formed with inner ring gas mixing chamber and outer loop gas mixing chamber, and the combustor includes end cup, and end cup draws tub and outer loop to draw and penetrates the pipe including being discoid main part basically with the inner ring that is formed at the main part downside and communicates with inner ring gas mixing chamber and outer loop gas mixing chamber respectively, and the inner ring draws the pipe to be formed with the inner ring and draws and penetrate a tub import, and the outer loop draws the pipe to be formed with the outer loop and draws and penetrate a tub import, and the inner ring draws and penetrates a tub import and the outer loop and draw and penetrate the opposite both ends of a diameter that the pipe import lies in the main part basically. According to the arrangement, the inner ring injection pipe inlet and the outer ring injection pipe inlet of the combustor are separated to a great extent, so that negative pressure interference between the inner ring injection pipe inlet and the outer ring injection pipe inlet can be reduced, the injection performance is improved, and the combustion is more stable.
Description
Technical Field
The invention relates to the field of household cookers, in particular to a burner.
Background
Existing burners may use multiple injector tubes to feed different flame rings. However, the air inlet interval of the ejector pipe is small due to the arrangement of the ejector pipe. The air inlet interval is small, negative pressure interference can exist when the combustor works, the injection performance is further influenced, the wind resistance is weak, and the risk of flame quenching exists.
Disclosure of Invention
The invention provides a combustor.
The burner of the embodiment of the present invention is formed with an inner ring gas mixing chamber and an outer ring gas mixing chamber, and includes:
the bottom cup comprises a main body, an inner ring injection pipe and an outer ring injection pipe, wherein the inner ring injection pipe and the outer ring injection pipe are formed on the lower side of the main body and are respectively communicated with the inner ring gas mixing cavity and the outer ring gas mixing cavity, an inner ring injection pipe inlet is formed in the inner ring injection pipe, an outer ring injection pipe inlet is formed in the outer ring injection pipe, and the inner ring injection pipe inlet and the outer ring injection pipe inlet are basically located at two opposite ends of one diameter of the main body.
Therefore, the inner ring injection pipe inlet and the outer ring injection pipe inlet of the combustor are separated to a great extent, so that negative pressure interference between the inner ring injection pipe inlet and the outer ring injection pipe inlet can be reduced, the injection performance is improved, and the combustion is more stable.
In some embodiments, the body includes a substantially circular bearing surface, the body being formed with:
the inner ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the inner ring injection pipe, and an inner ring air inlet opening is formed in the bearing surface of the inner ring air inlet groove; and
the outer ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the outer ring injection pipe, an outer ring air inlet opening is formed in the bearing surface of the outer ring air inlet groove, and the inner ring air inlet opening and the outer ring air inlet opening are located at two opposite ends of one diameter of the bearing surface.
In some embodiments, the body includes a substantially circular bearing surface, the body being formed with:
the inner ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the inner ring injection pipe, and an inner ring air inlet opening is formed in the bearing surface of the inner ring air inlet groove; and
and the outer ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the outer ring injection pipe, an outer ring air inlet opening is formed in the bearing surface of the outer ring air inlet groove, and the area of the inner ring air inlet opening is smaller than that of the outer ring air inlet opening.
In some embodiments, the inner ring air inlet opening is substantially in the shape of a circular sector and extends counterclockwise for a first predetermined arc length from a position close to the outer edge of the bearing surface and corresponding to the inlet of the inner ring ejector pipe;
the outer ring air inlet opening is basically in a circular sector shape and extends counterclockwise for a second preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the inlet of the outer ring injection pipe;
the outer arc edge and the inner arc edge of the inner ring air inlet opening and the outer ring air inlet opening are concentric with the bearing surface;
the radii of the outer arc edge and the inner arc edge of the inner ring air inlet opening and the outer ring air inlet opening are basically the same; the first predetermined arc length is substantially the same as the second predetermined arc length;
the inner ring ejector pipe is provided with an inner ring ejector pipe outlet communicated with the inner ring ejector pipe inlet, the outer ring ejector pipe is provided with an outer ring ejector pipe outlet communicated with the outer ring ejector pipe inlet, and the main body is provided with:
the inner ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the inner ring injection pipe, and an inner ring air outlet opening is formed in the bearing surface of the inner ring mixing chamber; and
and the outer ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the outer ring injection pipe, an outer ring air outlet opening is formed in the bearing surface by the outer ring mixing chamber, and the outer ring air outlet opening extends into the inner ring air inlet opening so that the area of the inner ring air inlet opening is smaller than that of the outer ring air inlet opening.
In certain embodiments, the inner annular ejector tube forms an inner annular ejector tube outlet in communication with the inner annular ejector tube inlet, the outer annular ejector tube forms an outer annular ejector tube outlet in communication with the outer annular ejector tube inlet, the body includes a substantially circular bearing surface, the body is formed with:
the inner ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the inner ring injection pipe, and an inner ring air outlet opening is formed in the bearing surface of the inner ring mixing chamber; and
the outer ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the outer ring injection pipe, an outer ring air outlet opening is formed in the bearing surface by the outer ring mixing chamber, and the inner ring air outlet opening and the outer ring air outlet opening are located at two opposite ends of one diameter of the bearing surface.
In certain embodiments, the inner annular ejector tube forms an inner annular ejector tube outlet in communication with the inner annular ejector tube inlet, the outer annular ejector tube forms an outer annular ejector tube outlet in communication with the outer annular ejector tube inlet, the body includes a substantially circular bearing surface, the body is formed with:
the inner ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the inner ring injection pipe, and an inner ring air outlet opening is formed in the bearing surface of the inner ring mixing chamber; and
the outer ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the outer ring injection pipe, an outer ring air outlet opening is formed in the bearing surface of the outer ring mixing chamber, and the area of the inner ring air outlet opening is smaller than that of the outer ring air outlet opening.
In some embodiments, the inner ring air outlet opening is substantially in the shape of a circular sector and extends clockwise for a third predetermined arc length from a position close to the outer edge of the bearing surface and corresponding to the outlet of the inner ring ejector tube;
the outer ring air outlet opening is basically in a circular sector shape and extends clockwise for a fourth preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the outlet of the outer ring injection pipe;
the outer arc edge and the inner arc edge of the inner ring air outlet opening and the outer ring air outlet opening are concentric with the bearing surface;
the radius difference between the outer arc edge and the inner arc edge of the inner ring air outlet opening is smaller than the radius difference between the outer arc edge and the inner arc edge of the outer ring air outlet opening, and/or the third preset arc length is smaller than the fourth preset arc length.
In some embodiments, the axes of the inner ring ejector pipe and the outer ring ejector pipe are substantially horizontal and located at two sides of the diameter, the axes of the inner ring ejector pipe and the outer ring ejector pipe are both substantially parallel to the diameter, the inner ring ejector pipe forms an inner ring ejector pipe outlet communicated with the inner ring ejector pipe inlet, the outer ring ejector pipe forms an outer ring ejector pipe outlet communicated with the outer ring ejector pipe inlet, the main body includes a substantially circular bearing surface, and the main body forms:
the inner ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the inner ring injection pipe, and an inner ring air inlet opening is formed in the bearing surface of the inner ring air inlet groove; the inner ring air inlet opening is basically in a circular sector shape and extends anticlockwise for a first preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the inlet of the inner ring injection pipe;
the outer ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the outer ring injection pipe, an outer ring air inlet opening is formed in the outer ring air inlet groove on the bearing surface, the outer ring air inlet opening is basically in a circular sector shape and extends anticlockwise for a second preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the inlet of the outer ring injection pipe, and the outer arc edge and the inner arc edge of the inner ring air inlet opening and the outer ring air inlet opening are concentric with the bearing surface;
the inner ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the inner ring injection pipe, an inner ring air outlet opening is formed in the bearing surface of the inner ring mixing chamber, the inner ring air outlet opening is basically in a circular sector shape, and a third preset arc length is extended clockwise from a position which is close to the outer edge of the bearing surface and corresponds to the outlet of the inner ring injection pipe; and
and the outer ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the outer ring injection pipe, an outer ring air outlet opening is formed on the bearing surface by the outer ring mixing chamber, the outer ring air outlet opening is basically in a circular sector shape, and a fourth preset arc length is clockwise extended from a position which is close to the outer edge of the bearing surface and corresponds to the outlet of the outer ring injection pipe.
In some embodiments, the inner ring outlet opening is substantially in the shape of a circular sector, the depth of the inner ring mixing chamber becomes gradually shallower in the clockwise direction, and the outer ring ejector pipe and the orthographic projection of the inner ring mixing chamber on the bearing surface interfere with each other;
the outer ring air outlet opening is basically in a circular sector shape, the depth of the outer ring mixing chamber is gradually reduced in the clockwise direction, and the orthographic projections of the inner ring injection pipe and the outer ring mixing chamber on the bearing surface are mutually interfered.
In certain embodiments, the burner further comprises a distributor disposed on the main body, the distributor forming:
an annular inner ring chamber;
an inner ring channel communicating the inner ring chamber and the inner ring mixing chamber, the inner ring channel being inclined towards the interior of the inner ring chamber;
an annular outer ring chamber; and
and the outer ring channel is communicated with the outer ring chamber and the outer ring mixing chamber and inclines towards the outside of the outer ring chamber.
In some embodiments, the burner further includes an inner fire cover and an outer fire cover which are matched with the distributor, the inner fire cover and the outer fire cover are concentrically arranged, the outer fire cover is provided with an outer fire hole communicated with the outer ring cavity, the inner fire cover is provided with an inner fire hole communicated with the inner ring cavity, when the burner is horizontally placed, a first included angle is formed between an orthographic projection of central axes of the inner fire hole and the outer fire hole on a horizontal plane and a radial direction of the burner, the first included angle is 0-45 °, a second included angle is formed between the central axes of the inner fire hole and the outer fire hole and a central axis of the burner, and an angle range of the second included angle is 45-90 °.
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 perspective view of a burner according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a burner according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a burner according to an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of the burner of FIG. 3 taken along line IV-IV;
FIG. 5 is a partial perspective view of a burner embodying the present invention;
FIG. 6 is a schematic cross-sectional view of the burner of FIG. 3 taken along line VI-VI;
fig. 7 is a perspective view of another portion of a burner embodying the present invention.
FIG. 8 is a schematic plan view of a base cup according to an embodiment of the present invention;
FIG. 9 is a further schematic plan view of a base cup according to an embodiment of the invention;
FIG. 10 is a schematic plan view of a distributor according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view of the distributor of FIG. 11 taken along line XI-XI;
FIG. 12 is a schematic plan view of an inner fire cover in accordance with an embodiment of the present invention;
FIG. 13 is a schematic sectional view taken along line XIII-XIII in FIG. 12;
FIG. 14 is a schematic plan view of an outer fire cover in accordance with an embodiment of the invention;
fig. 15 is a schematic sectional view taken along line XV-XV in fig. 14.
Description of the main element symbols: the burner 100, the bottom cup 10, the main body 11, the inner ring ejector pipe 12, the inner ring ejector pipe inlet 121, the inner ring ejector pipe outlet 122, the outer ring ejector pipe 13, the outer ring ejector pipe inlet 131, the outer ring ejector pipe outlet 132, the bearing surface 111, the inner ring air inlet groove 112, the inner ring air inlet opening 1121, the first predetermined arc length 11211, the outer ring air inlet groove 113, the outer ring air inlet opening 1131, the second predetermined arc length 11311, the inner ring mixing chamber 114, the inner ring air outlet opening 1141, and the third predetermined arc length 11411, the outer ring mixing chamber 115, the outer ring gas outlet opening 1151, the fourth predetermined arc length 11511, the inner ring nozzle holder 14, the outer ring nozzle holder 15, the distributor 20, the inner ring chamber 21, the inner ring channel 22, the outer ring chamber 23, the outer ring channel 24, the inner fire cover 30, the inner ring fire hole 31, the inner ring inner wall 32, the outer fire cover 40, the outer ring fire hole 41, the outer ring inner wall 42, the inner ring gas mixing chamber 50 and the outer ring gas mixing chamber 60.
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 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 "row direction", "column direction", "center", "longitudinal", "lateral", "length", "width", "thickness", "edge", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "plurality" or "a plurality" means two or more in number unless specifically limited otherwise.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1 to 3 together, the burner 100 according to the embodiment of the present invention may be used in a cooking range, for example, a household gas range (not shown). When the gas cooker is used, the burner 100 can be horizontally placed, installed on the gas cooker and connected with a gas source, so that gas can be combusted through the burner 100 for cooking.
Referring to fig. 4 to 7, the burner 100 according to the embodiment of the present invention is formed with an inner ring gas mixing chamber 50 and an outer ring gas mixing chamber 60, and when in operation, the burner 100 can form an inner ring flame and an outer ring flame, and the inner ring gas mixing chamber 50 and the outer ring gas mixing chamber 60 respectively supply gas for the inner ring flame and the outer ring flame. The combustor 100 comprises a bottom cup 10, wherein the bottom cup 10 comprises a main body 11, an inner ring injection pipe 12 and an outer ring injection pipe 13, the main body 11 is basically disc-shaped, and the inner ring injection pipe 12 and the outer ring injection pipe 13 are formed on the lower side of the main body 11 and are respectively communicated with an inner ring gas mixing cavity 50 and an outer ring gas mixing cavity 60. The inner annular ejector tube 12 is formed with an inner annular ejector tube inlet 121, the outer annular ejector tube 13 is formed with an outer annular ejector tube inlet 131, and the inner annular ejector tube inlet 121 and the outer annular ejector tube inlet 131 are located substantially at opposite ends of a diameter CL1 of the main body 11.
Generally, existing burners may employ multiple injector tubes to feed different flame rings. However, the arrangement of the ejector pipe has the problem that the air inlet interval of the ejector pipe is small. The air inlet interval is small, negative pressure interference can exist when the combustor works, the injection performance is further influenced, the wind resistance is weak, and the risk of flame quenching exists.
In the burner 100 of the present embodiment, the inner annular ejector tube inlet 121 and the outer annular ejector tube inlet 131 are largely spaced apart. So, can reduce mutual negative pressure interference, improve and draw the penetrating performance, the burning is more stable.
It can be understood that, when the burner 100 is in operation, the inner-ring gas mixing chamber 50 supplies gas for the inner-ring flame, the outer-ring gas mixing chamber 60 supplies gas for the outer-ring flame, the inner-ring ejector pipe 12 supplies gas for the inner-ring gas mixing chamber 50, and the outer-ring ejector pipe 13 supplies gas for the outer-ring gas mixing chamber 60. In the embodiment of the present invention, the bottom cup 10 may be made of a metal material such as cast iron, aluminum, and copper, and may be integrally formed by a mold or may be formed by machining.
Referring to fig. 8 and 9, in some embodiments, the inner ring ejector tube 12 and the outer ring ejector tube 13 are substantially horizontally disposed and located at two sides of the diameter CL1 of the main body 11, and the axes of the inner ring ejector tube 12 and the outer ring ejector tube 13 are substantially parallel to the diameter CL 1.
Therefore, the injection distance between the inner ring injection pipe and the outer ring injection pipe 13 can be greatly increased under the condition that the inner ring injection pipe inlet 121 and the outer ring injection pipe inlet 131 are far away from each other as far as possible, and the injection performance is improved.
In some embodiments, the main body 11 includes a bearing surface 111, the bearing surface 111 is substantially circular, and the main body 11 is formed with an inner ring air inlet groove 112 and an outer ring air inlet groove 113 downward from the bearing surface 111 in the height direction of the main body 11. The inner ring air inlet groove 112 penetrates through the bearing surface 111 and is communicated with the inlet 121 of the inner ring injection pipe, and the outer ring air inlet groove 113 penetrates through the bearing surface 111 and is communicated with the inlet 131 of the outer ring injection pipe. Inner ring air intake groove 112 has inner ring air intake opening 1121 formed on bearing surface 111, outer ring air intake groove 113 has outer ring air intake opening 1131 formed on bearing surface 111, and inner ring air intake opening 1121 and outer ring air intake opening 1131 are located at opposite ends of a diameter of bearing surface 111.
As such, the inner ring inlet slots 112 may provide primary air for the inner ring flames and the outer ring inlet slots 113 may provide primary air for the outer ring flames. Meanwhile, the inner ring air inlet groove 112 and the outer ring air inlet groove 113 can be separated at intervals to a great extent, negative pressure interference of primary air between the inner ring air inlet groove and the outer ring air inlet groove can be reduced, the amount of the primary air entering the inner ring injection pipe 12 and the outer ring injection pipe 13 is ensured, and combustion is more stable.
It is understood that in the present embodiment, one diameter of the bearing surface 111 is the diameter CL1 of the main body 11, that is, the diameter of the bearing surface 111 may be the diameter of the main body 11, and similar situations in the following embodiments can be understood by referring to the diameter. In the example shown in fig. 4 to 7, the inner ring inlet slot 112 is located at the end where the inner ring ejector tube inlet 121 is located, and the outer ring inlet slot 113 is located at the end where the outer ring ejector tube inlet 131 is located.
In certain embodiments, the area of inner ring air inlet openings 1121 is less than the area of outer ring air inlet openings 1131.
Specifically, in general, the inner ring flame of the burner 100 has a lower combustion power, requires less gas, and requires less primary air, and the outer ring flame, which is the main flame for heating the cooker, requires more gas, has a higher power, and requires more primary air. Accordingly, this may be achieved by setting the area of inner ring air intake openings 1121 smaller than the area of outer ring air intake openings 1131. The specific area size can be adjusted according to the combustion power required to be achieved by the inner ring flame and the outer ring flame, and can be set according to actual requirements.
In some embodiments, the inner ring ejector tube 12 further defines an inner ring ejector tube outlet 122 in communication with the inner ring ejector tube inlet 121, and the outer ring ejector tube 13 further defines an outer ring ejector tube outlet 132 in communication with the outer ring ejector tube inlet 131. The main body 11 is further formed with an inner ring mixing chamber 114 and an outer ring mixing chamber 115 along the height direction of the main body 11 from the bearing surface 111, the inner ring ejector pipe outlet 122 is communicated with the inner ring mixing chamber 114, and the outer ring ejector pipe outlet 132 is communicated with the outer ring mixing chamber 115. Inner ring mixing chamber 114 and outer ring mixing chamber 115 both extend through seating surface 111, forming inner ring exit opening 1141 and outer ring exit opening 1151 on seating surface 111, respectively, inner ring exit opening 1141 and outer ring exit opening 1151 being located at opposite ends of a diameter CL1 of seating surface 111 (as shown in fig. 8).
Specifically, in the example shown in fig. 4 to 7, the inner ring ejector tube outlet 122 is located at one end where the outer ring ejector tube inlet 131 is located, and the outer ring ejector tube outlet 132 is located at one end where the inner ring ejector tube inlet 121 is located.
So, the increase inner ring that can very big degree draws and penetrates pipe 12 and the outer ring draws and penetrates the distance of drawing that 13 penetrated the pipe, has improved and has penetrated the performance, makes gas and air mixing more abundant.
It will be appreciated that in the example shown in figures 4 to 7, the inner ring mixing chamber 114 and the outer ring inlet duct 113 are located at the end of the outer ring ejector tube inlet 131, but are offset from each other and not in communication, and the outer ring mixing chamber 115 and the inner ring inlet duct 112 are located at the end of the inner ring ejector tube inlet 121. The two are staggered and not communicated with each other.
So, the inner ring draws and penetrates pipe 12 intercommunication inner ring air inlet duct 112 and inner ring mixing chamber 114, and the primary air that gets into inner ring from inner ring air inlet duct 112 and draws pipe 12 can with the gas can carry out further abundant mixture in inner ring mixing chamber 114 after preliminary mixing at inner ring draws pipe 12, makes it can burn more abundant when burning, produces more CO when preventing to burn. Simultaneously, outer loop draws and penetrates pipe 13 intercommunication outer loop air inlet duct 113 and outer loop mixing chamber 115, and the primary air that gets into outer loop from outer loop air inlet duct 113 and draws and penetrate pipe 13 can with the gas can carry out further abundant mixture outside outer loop mixing chamber 115 after preliminary mixing at outer loop draws penetrating pipe 13, makes it can burn more abundant when burning, produces more CO when preventing to burn.
Referring to fig. 8, in some embodiments, the inner ring air inlet 1121 is substantially circular sector shaped and extends counterclockwise a first predetermined arc length 11211 from a location near the outer edge of the bearing surface 111 and corresponding to the inner ring ejector nozzle inlet 121, and the outer ring air inlet 1131 is substantially circular sector shaped and extends counterclockwise a second predetermined arc length 11311 from a location near the outer edge of the bearing surface 111 and corresponding to the outer ring ejector nozzle inlet 131. The outer and inner arc edges of the inner and outer ring air inlet openings 1121, 1131 are concentric with the seating surface 111, the outer and inner arc edges of the inner and outer ring air inlet openings 1121, 1131 have substantially the same radius, and the first predetermined arc length 11211 is substantially the same as the second predetermined arc length 11311. Further, in the example shown in FIG. 8, to achieve that the area of inner ring air inlet openings 1121 is less than the area of outer ring air inlet openings 1131, outer ring air outlet openings 1151 may be extended into inner ring air inlet openings 1121 to reduce the area of inner ring air inlet openings 1121 such that inner ring air inlet openings 1121 are less than outer ring air inlet openings 1131.
Referring again to FIG. 8, in some embodiments, the area of the inner ring exit opening 1141 is smaller than the area of the outer ring exit opening 1151.
Generally, during the use of the burner 100, the inner ring flame has a low power and a small flame range, and if too much air is introduced, insufficient combustion may occur, resulting in low thermal efficiency. Therefore, setting the area of the inner ring gas outlet openings 1141 smaller than the area of the outer ring gas outlet openings 1151 prevents the mixture gas from entering the inner ring too much to cause insufficient combustion.
Additionally, referring to FIG. 8, in some embodiments, the inner ring exit opening 1141 is substantially circular sector shaped and extends clockwise a third predetermined arc length 11411 from a location adjacent to the outer edge of the bearing surface 111 and corresponding to the inner ring eductor tube outlet 122. The outer ring outlet opening 1151 is substantially circular sector shaped and extends clockwise a fourth predetermined arc length 11511 from a location adjacent the outer edge of the bearing surface 111 and corresponding to the outer ring eductor tube outlet 132. The outer and inner arcuate edges of inner ring exit opening 1141 and outer ring exit opening 1151 are concentric with bearing surface 111. In the example shown in FIG. 8, to make the area of inner ring exit openings 1141 smaller than the area of outer ring exit openings 1151, the difference in radii of the outer and inner arc edges of inner ring exit openings 1141 may be made smaller than the difference in radii of the outer and inner arc edges of outer ring exit openings 1151 and/or the length of third predetermined arc length 11411 may be made smaller than the length of fourth predetermined arc length 11511.
Referring to fig. 5, 7 and 8, in some embodiments, the depth of the inner ring mixing chamber 114 becomes gradually shallower in a clockwise direction, and the orthographic projection of the outer ring ejector pipe 13 and the inner ring mixing chamber 114 on the bearing surface 111 interferes with each other. The depth of the outer ring mixing chamber 115 becomes gradually shallower in the clockwise direction, and the orthographic projections of the inner ring ejector pipe 12 and the outer ring mixing chamber 115 on the bearing surface 111 interfere with each other.
So, can inject the space above the pipe 12 and the outer loop of penetrating of effectual utilization inner ring under the prerequisite of guaranteeing the height of end cup 10 for inner ring mixing chamber 114 and outer loop mixing chamber 115's space is as big as possible, makes gas and air can mix more fully, and inner ring mixing chamber 114 and outer loop mixing chamber 115 are provided with certain slope and can reduce the air current resistance, improve combustor 100's performance. Meanwhile, the overall height of the burner 100 can be advantageously reduced, and the burner 100 can be more miniaturized.
In some embodiments, the bottom cup 10 further includes an inner ring nozzle holder 14 in communication with the inner ring inlet slot 112 and an outer ring nozzle holder 15 in communication with the outer ring inlet slot 113. The inner ring nozzle holder 14 and the outer ring nozzle holder 15 are both in the shape of a through-hole tube. The inner ring nozzle holder 14 is used for mounting an inner ring nozzle (not shown), and the outer ring nozzle holder 15 is used for mounting an outer ring nozzle (not shown).
The inner ring nozzle seat 14 corresponds to the inner ring ejector pipe 12, and the outer ring nozzle seat 15 corresponds to the outer ring ejector pipe 13. The gas is sprayed into the inner ring injection pipe 12 through the inner ring nozzle installed on the inner ring nozzle seat 14, the gas flow rate of the gas is high, negative pressure can be formed when the gas is sprayed into the inner ring injection pipe 12, at the moment, outside air can be sucked into the inner ring air inlet groove 112 and enters the inner ring injection pipe 12 through the inner ring injection pipe inlet 121 to be primarily mixed with the gas, and then the gas is further mixed in the inner ring mixing chamber 114. Similarly, the gas is sprayed into the outer ring injection pipe 13 through the outer ring nozzle installed on the outer ring nozzle seat 15, the gas flow rate of the gas is high, negative pressure is formed when the gas is sprayed into the outer ring injection pipe 13, at this time, outside air is sucked into the outer ring air inlet groove 113 and enters the outer ring injection pipe 13 through the outer ring injection pipe inlet 131 to be primarily mixed with the gas, and then is further mixed in the outer ring mixing chamber 115.
It is to be understood that, in the present embodiment, both the inner ring nozzle holder 14 and the outer ring nozzle holder 15 may be integrally formed with the main body 11, may be separately formed, and may be connected by welding or the like.
Referring to fig. 10 and 11 together, in some embodiments, the burner 100 further includes a distributor 20, the distributor 20 being disposed on the body 11 of the bottom cup 10, the distributor 20 being formed with an inner ring chamber 21, an inner ring passage 22, an outer ring chamber 23, and an outer ring passage 24. The inner ring chamber 21 and the outer ring chamber 23 are annular, the inner ring channel 22 is communicated with the inner ring chamber 21 and the inner ring mixing chamber 114 on the bottom cup 10, and the outer ring channel 24 is communicated with the outer ring chamber 23 and the outer ring mixing chamber 115 on the bottom cup 10. The inner ring passage 22 is inclined to the inside of the inner ring chamber 21, and the outer ring passage 24 is inclined to the outside of the outer ring chamber 23.
In this way, the length of the inner ring channel 22 can be as long as possible while ensuring the height of the distributor 20. Therefore, the gas and the primary air can be mixed more sufficiently, the air pressure impact caused by overlarge air pressure can be prevented, and the performance of the combustor is improved. Meanwhile, when the fire divider 20 is manufactured, the fire divider can be easily manufactured and molded through an upper and lower demolding process, so that the manufacturing efficiency and yield are improved, and the manufacturing cost is reduced.
It will be appreciated that the inner ring chamber 21 of the distributor 20 and the inner ring mixing chamber 114 on the bottom cup 10 communicate to form the inner ring gas mixing chamber 50 of the burner 100, and the outer ring chamber 23 of the distributor 20 and the outer ring mixing chamber 115 on the bottom cup 10 communicate to form the outer ring gas mixing chamber 60 of the burner 100.
Referring to fig. 12 to 15, in some embodiments, the burner 100 further includes an inner fire cover 30 and an outer fire cover 40 that are matched with the distributor 20, the inner fire cover 30 and the outer fire cover 40 are concentrically disposed, the outer fire cover 40 is provided with an outer fire hole 41 that is communicated with the outer ring chamber 23, the inner fire cover 30 is provided with an inner fire hole 31 that is communicated with the inner ring chamber 21, when the burner 100 is horizontally disposed, a first included angle α is formed between an orthographic projection of central axes of the inner fire hole 31 and the outer fire hole 41 on a horizontal plane and a radial direction of the burner 100, the first included angle α is 0 ° to 45 °, a second included angle β is formed between central axes of the inner fire hole 31 and the outer fire hole 41 and a central axis of the burner 100, and an angle range of the second included angle β is 45 ° to 90 °.
Thus, the mixed gas can be sprayed out from the inner ring fire holes 31 and the outer ring fire holes 41, and after being ignited, the inner ring flame and the outer ring flame are formed. The existence of the first included angle alpha and the second included angle beta can form a rotating flame which is gathered inwards, and the heating efficiency is improved. In addition, be unfavorable for the gathering of flame when first contained angle alpha is too big, when second contained angle beta is undersize, the fire hole with combustor 100 axial angle undersize, thereby in the use, outside residue and filth get into the fire hole easily and block up the fire hole. Accordingly, setting the first included angle α at 0 ° to 45 ° and the second included angle β at 45 ° to 90 ° may make the flame of the burner 100 more convergent and less prone to block the fire holes.
Specifically, the inner ring fire holes 31 are communicated with the inner ring chamber 21, the mixed gas in the inner ring gas mixing chamber 50 can be sprayed out from the inner ring fire holes 31 to form inner ring flames, the outer ring fire holes 41 are communicated with the outer ring chamber 23, the mixed gas in the outer ring gas mixing chamber 60 can be sprayed out from the outer ring fire holes 41 to form outer ring flames,
it will be appreciated that in the example of fig. 12 and 14, the inner ring fire holes 31 and the outer ring fire holes 41 are arranged with a substantially anticlockwise centripetal rotation. In other embodiments, the inner ring fire hole 31 and the outer ring fire hole 41 may also be arranged to rotate clockwise and centripetally, and are not limited in particular.
In addition, it can be understood that the first included angle α formed by the inner ring fire holes 31 and the outer ring fire holes 41 with the radial direction of the combustor 100 and the second included angle β formed by the inner ring fire holes and the outer ring fire holes 41 with the central axis of the combustor 100 may be the same or different, and only need to be within the above-specified range.
It should be noted that the inner cap 30 cooperates with the inner annular chamber 21 of the distributor 20, the inner cap 30 defines the inner annular gas mixing chamber 50 of the burner 100, the outer cap 40 cooperates with the outer annular chamber 23 of the distributor 20, and the outer cap 40 defines the outer annular gas mixing chamber 60 of the burner 100.
In some embodiments, the outer fire cover 40 includes an outer annular inner wall 42, the inner fire cover 30 includes an inner annular wall 32, the outer fire holes 41 are disposed on the outer annular inner wall 42, and the inner fire holes 31 are disposed on the inner annular wall 32.
Thus, the inner ring fire holes 31 face the inside of the inner fire cover 30, and the outer ring fire holes 41 face the inside of the outer fire cover 40. Thus, the burner 100 may form a coherent flame, which may reduce heat diffusion to the outside, further improving thermal efficiency.
Referring to fig. 4 to 7 again, when the burner 100 according to the embodiment of the present invention operates, the inner ring nozzle injects the fuel gas into the inner ring injection pipe 12, the gas flow velocity of the fuel gas is high, negative pressure is formed in the inner ring injection pipe 12, and external primary air is sucked into the inner ring air inlet groove 112 and the inner ring injection pipe 12 (the dotted line arrow in fig. 4 and 5 indicates the inner ring primary air inlet direction). Then, the primary air and the fuel gas are primarily mixed in the inner ring injection pipe 12, and then enter the inner ring mixing chamber 114 for further mixing, and then enter the inner ring channel 22 of the distributor 20 through the inner ring air outlet opening 1141, and then are guided into the inner ring chamber 21 through the inner ring channel 22, and finally are ejected through the inner ring fire holes 31 to form inner ring flame. In addition, the outer ring nozzle injects the fuel gas to the outer ring ejector pipe 13, the gas flow velocity of the fuel gas is high, negative pressure is formed in the outer ring ejector pipe 13, and external primary air is sucked into the outer ring air inlet groove 113 and the outer ring ejector pipe 13 (dotted line arrows in fig. 6 and 7 indicate the outer ring primary air inlet direction). Then, the primary air and the fuel gas are primarily mixed in the outer ring ejector pipe 13, and then enter the outer ring mixing chamber 115 for further mixing, and then enter the outer ring passage 24 of the distributor 20 through the outer ring outlet opening 1151, and then are guided into the outer ring chamber 23 through the outer ring passage 24, and finally are ejected through the outer ring fire holes 41 to form outer ring flames.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means 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 present invention. In this specification, schematic representations of the above terms 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 present 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 (9)
1. A burner formed with an inner annular gas mixing chamber and an outer annular gas mixing chamber, the burner comprising:
the bottom cup comprises a substantially disc-shaped main body, and an inner ring injection pipe and an outer ring injection pipe which are formed on the lower side of the main body and are respectively communicated with the inner ring gas mixing cavity and the outer ring gas mixing cavity, wherein the inner ring injection pipe is provided with an inner ring injection pipe inlet, the outer ring injection pipe is provided with an outer ring injection pipe inlet, and the inner ring injection pipe inlet and the outer ring injection pipe inlet are substantially positioned at two opposite ends of one diameter of the main body;
the body includes a substantially circular bearing surface, the body being formed with:
the inner ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the inner ring injection pipe, and an inner ring air inlet opening is formed in the bearing surface of the inner ring air inlet groove; and
the outer ring air inlet groove penetrates through the bearing surface and is communicated with the inlet of the outer ring injection pipe, an outer ring air inlet opening is formed in the bearing surface of the outer ring air inlet groove, and the inner ring air inlet opening and the outer ring air inlet opening are positioned at two opposite ends of one diameter of the bearing surface;
the inner ring air inlet groove is formed downwards from the bearing surface along the height direction of the main body, and the inner ring air inlet groove is also formed downwards from the bearing surface along the height direction of the main body;
the inner ring draws the ejector pipe form with the inner ring draws the inner ring that the ejector pipe import communicates draws the ejector pipe export, the outer loop draws the ejector pipe form with the outer loop draws the ejector pipe export that the ejector pipe import communicates, the main part is formed with:
the inner ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the inner ring injection pipe, and an inner ring air outlet opening is formed in the bearing surface of the inner ring mixing chamber; and
the outer ring mixing chamber penetrates through the bearing surface and is communicated with the outlet of the outer ring injection pipe, an outer ring air outlet opening is formed in the bearing surface of the outer ring mixing chamber, and the inner ring air outlet opening and the outer ring air outlet opening are positioned at two opposite ends of one diameter of the bearing surface;
the inner ring mixing chamber and the outer ring air inlet groove are located at one end where the outer ring injection pipe inlet is located, and the outer ring mixing chamber and the inner ring air inlet groove are located at one end where the inner ring injection pipe inlet is located.
2. The burner of claim 1, wherein the area of the inner ring intake opening is less than the area of the outer ring intake opening.
3. The burner of claim 2, wherein the inner ring inlet opening is substantially sector-shaped and extends counterclockwise for a first predetermined arc length from a location adjacent the outer edge of the bearing surface and corresponding to the inner ring eductor inlet;
the outer ring air inlet opening is basically sector-shaped and extends anticlockwise for a second preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the inlet of the outer ring injection pipe;
the outer arc edge and the inner arc edge of the inner ring air inlet opening and the outer ring air inlet opening are concentric with the bearing surface;
the radii of the outer arc edge and the inner arc edge of the inner ring air inlet opening and the outer ring air inlet opening are basically the same; the first predetermined arc length is substantially the same as the second predetermined arc length;
the outer ring air outlet opening extends into the inner ring air inlet opening so that the area of the inner ring air inlet opening is smaller than that of the outer ring air inlet opening.
4. The burner of claim 1 wherein the inner ring exit opening has an area less than the area of the outer ring exit opening.
5. The burner of claim 4 wherein the inner ring exit opening is substantially sector-shaped and extends clockwise a third predetermined arc length from a location adjacent the outer edge of the bearing surface and corresponding to the inner ring eductor tube outlet;
the outer ring air outlet opening is basically sector-shaped and extends clockwise for a fourth preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the outlet of the outer ring injection pipe;
the outer arc edge and the inner arc edge of the inner ring air outlet opening and the outer ring air outlet opening are concentric with the bearing surface;
the radius difference between the outer arc edge and the inner arc edge of the inner ring air outlet opening is smaller than the radius difference between the outer arc edge and the inner arc edge of the outer ring air outlet opening, and/or the third preset arc length is smaller than the fourth preset arc length.
6. The burner of claim 1, wherein the axes of the inner annular ejector tube and the outer annular ejector tube are substantially horizontal and located on either side of the diameter, the axes of the inner annular ejector tube and the outer annular ejector tube both being substantially parallel to the diameter;
the inner ring air inlet opening is basically sector-shaped and extends anticlockwise for a first preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the inlet of the inner ring injection pipe;
the outer ring air inlet opening is basically sector-shaped, extends anticlockwise for a second preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the inlet of the outer ring injection pipe, and the outer arc edge and the inner arc edge of the inner ring air inlet opening and the outer ring air inlet opening are concentric with the bearing surface;
the inner ring air outlet opening is basically sector-shaped and extends clockwise for a third preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the outlet of the inner ring injection pipe; and
the outer ring air outlet opening is basically sector-shaped and extends clockwise for a fourth preset arc length from a position which is close to the outer edge of the bearing surface and corresponds to the outlet of the outer ring injection pipe.
7. The burner of any one of claims 1, 4 and 6, wherein the inner ring outlet opening is substantially sector-shaped, the depth of the inner ring mixing chamber becomes gradually shallower in a clockwise direction, and an orthographic projection of the outer ring ejector tube and the inner ring mixing chamber on the bearing surface is mutually interfered;
the outer ring air outlet opening is basically sector-shaped, the depth of the outer ring mixing chamber becomes gradually shallow in the clockwise direction, and the orthographic projections of the inner ring injection pipe and the outer ring mixing chamber on the bearing surface are mutually interfered.
8. The burner of any of claims 1, 4 and 6, further comprising a distributor disposed on the main body, the distributor forming:
an annular inner ring chamber;
an inner ring channel communicating the inner ring chamber and the inner ring mixing chamber, the inner ring channel being inclined towards the interior of the inner ring chamber;
an annular outer ring chamber; and
and the outer ring channel is communicated with the outer ring chamber and the outer ring mixing chamber and inclines towards the outside of the outer ring chamber.
9. The burner as claimed in claim 8, further comprising an inner fire cover and an outer fire cover which are matched with the fire distributor, wherein the inner fire cover and the outer fire cover are concentrically arranged, the outer fire cover is provided with an outer fire hole communicated with the outer ring cavity, the inner fire cover is provided with an inner fire hole communicated with the inner ring cavity, when the burner is horizontally arranged, a first included angle is formed between an orthographic projection of central axes of the inner fire hole and the outer fire hole on a horizontal plane and a radial direction of the burner, the first included angle is 0-45 degrees, a second included angle is formed between the central axes of the inner fire hole and the outer fire hole and a central axis of the burner, and the angle range of the second included angle is 45-90 degrees.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027340.8A CN109000242B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner head |
| PCT/CN2018/109357 WO2020047937A1 (en) | 2018-09-04 | 2018-10-08 | Burner and cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027340.8A CN109000242B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000242A CN109000242A (en) | 2018-12-14 |
| CN109000242B true CN109000242B (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811027340.8A Active CN109000242B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner head |
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| Country | Link |
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| CN (1) | CN109000242B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020047937A1 (en) * | 2018-09-04 | 2020-03-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Burner and cooker |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1294585B1 (en) * | 1997-08-11 | 1999-04-12 | Defendi Srl Off Mec | GAS BURNER WITH SEVERAL FLAME SECTORS. |
| CN201476004U (en) * | 2009-08-06 | 2010-05-19 | 浙江苏泊尔家电制造有限公司 | Three-ring precision control fuel gas burner |
| CN203501170U (en) * | 2013-10-17 | 2014-03-26 | 中山华帝燃具股份有限公司 | Atmospheric burner |
| CN106369603B (en) * | 2016-10-26 | 2021-12-17 | 宁波风腾燃具有限公司 | Secondary upper air inlet burner |
| CN206257666U (en) * | 2016-10-26 | 2017-06-16 | 宁波风腾燃具有限公司 | A kind of adjustable upper inlet wind type burner |
| CN106765083A (en) * | 2016-12-01 | 2017-05-31 | 中山金木楠智能家居有限公司 | A kind of full upward-air-feeding type stove combustor and kitchen range |
| CN207635338U (en) * | 2017-12-26 | 2018-07-20 | 宁波方太厨具有限公司 | A kind of burner for gas-cooker |
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2018
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| CN109000242A (en) | 2018-12-14 |
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