CN109000239B - Burner with a burner body - Google Patents
Burner with a burner body Download PDFInfo
- Publication number
- CN109000239B CN109000239B CN201811026856.0A CN201811026856A CN109000239B CN 109000239 B CN109000239 B CN 109000239B CN 201811026856 A CN201811026856 A CN 201811026856A CN 109000239 B CN109000239 B CN 109000239B
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- CN
- China
- Prior art keywords
- outer ring
- inner ring
- bearing surface
- injection pipe
- mixing chamber
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Classifications
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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
-
- 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 burner. The burner is formed with inner ring gas mixing chamber and outer loop gas mixing chamber, the burner includes the end cup, the end cup includes the main part of basic discoid, the main part is including basic circular bearing surface, the main part is formed with the inner ring air inlet tank and the outer ring air inlet tank that run through bearing surface, the inner ring air inlet tank is used for providing primary air for inner ring gas mixing chamber, the outer ring air inlet tank is used for providing primary air for outer ring gas mixing chamber, the inner ring air inlet tank is formed with inner ring air inlet opening on bearing surface, the outer ring air inlet tank is formed with outer ring air inlet opening on bearing surface, inner ring air inlet opening and outer ring air inlet opening are located the opposite both ends of a diameter of bearing surface. In this manner, the inner and outer ring intake openings are largely spaced apart. Therefore, the negative pressure interference between the two air inlets can be reduced when primary air is sucked, the injection performance is improved, and the combustion is more stable.
Description
Technical Field
The invention relates to the field of household kitchen ranges, in particular to a combustor.
Background
The existing burner can adopt a plurality of injection pipes to supply air to different flame rings, and primary air needs to be supplied to different injection pipes. However, the fact that the multi-root injection pipe shares one primary air inlet or the interval between the two primary air inlets is smaller can lead to negative pressure interference when the burner works, so that the injection performance is affected, the wind resistance is weaker, and the flame quenching risk exists.
Disclosure of Invention
The invention provides a burner.
The burner of the embodiment of the invention is provided with an inner ring gas mixing cavity and an outer ring gas mixing cavity, and comprises:
a base cup comprising a substantially disc-shaped body including a substantially circular bearing surface, the body being formed with:
the inner ring air inlet groove penetrates through the bearing surface and is used for providing primary air for the inner ring mixed gas mixing cavity, and an inner ring air inlet opening is formed in the bearing surface; and
the outer ring air inlet groove penetrates through the bearing surface and is used for providing primary air for the outer ring mixed gas mixing cavity, 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 this way, the burner according to the embodiment of the present invention adopts the inner ring air inlet groove and the outer ring air inlet groove to supply primary air to the inner ring gas mixing chamber and the outer ring gas mixing chamber, respectively, and the inner ring air inlet opening and the outer ring air inlet opening are greatly spaced apart. Therefore, the negative pressure interference between the two air inlets can be reduced when primary air is sucked, the injection performance is improved, and the combustion is more stable.
In certain embodiments, the inner ring air intake opening has an area that is smaller than an area of the outer ring air intake opening.
In certain embodiments, the burner comprises:
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, the inner ring injection pipe is formed with an inner ring injection pipe inlet, the inner ring injection pipe inlet is communicated with the inner ring air inlet groove, the outer ring injection pipe is formed with an outer ring injection pipe inlet, the outer ring injection pipe inlet is communicated with the outer ring air inlet groove, and the inner ring injection pipe inlet and the outer ring injection pipe inlet are basically positioned at two opposite ends of one diameter of the main body.
In certain embodiments, the axes of the inner and outer ring ejector pipes are substantially horizontal and located on either side of a diameter of the main body, and the axes of the inner and outer ring ejector pipes are both substantially parallel to the diameter.
In certain embodiments, the inner ring air inlet opening has an area that is less than an area of the outer ring air inlet opening, the inner ring air inlet opening being substantially circular in sector shape and extending counterclockwise a first predetermined arc length from a position proximate an outer edge of the bearing surface and corresponding to the inner ring ejector tube inlet;
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;
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 injection pipe is formed with an inner ring injection pipe outlet communicated with an inner ring injection pipe inlet, the outer ring injection pipe is formed with an outer ring injection pipe outlet communicated with an outer ring injection pipe inlet, and the main body is formed with:
an inner ring mixing chamber penetrating the bearing surface and communicated with the outlet of the inner ring injection pipe, wherein an inner ring air outlet opening is formed on the bearing surface in 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 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 ring ejector tube forms an inner ring ejector tube outlet in communication with the inner ring ejector tube inlet, the outer ring ejector tube forms an outer ring ejector tube outlet in communication with the outer ring ejector tube inlet, the body comprises a substantially circular bearing surface, and the body is formed with:
an inner ring mixing chamber penetrating the bearing surface and communicated with the outlet of the inner ring injection pipe, wherein an inner ring air outlet opening is formed on the bearing surface in 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 positioned at two opposite ends of one diameter of the bearing surface.
In certain embodiments, the inner ring ejector tube forms an inner ring ejector tube outlet in communication with the inner ring ejector tube inlet, the outer ring ejector tube forms an outer ring ejector tube outlet in communication with the outer ring ejector tube inlet, the body comprises a substantially circular bearing surface, and the body is formed with:
an inner ring mixing chamber penetrating the bearing surface and communicated with the outlet of the inner ring injection pipe, wherein an inner ring air outlet opening is formed on the bearing surface in 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, the outer ring mixing chamber forms an outer ring air outlet opening on the bearing surface, and the area of the inner ring air outlet opening is smaller than that of the outer ring air outlet opening.
In certain embodiments, the inner ring outlet opening is substantially circular in sector shape and extends a third predetermined arc length clockwise from a position proximate the outer edge of the bearing surface and corresponding to the inner ring ejector outlet;
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 predetermined arc length is smaller than the fourth predetermined arc length.
In some embodiments, the inner ring air outlet opening is substantially in a circular sector shape, the depth of the inner ring mixing chamber gradually becomes shallower in the clockwise direction, and the outer ring injection 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 gradually becomes shallow in the clockwise direction, and the orthographic projection of the inner ring injection pipe and the outer ring mixing chamber on the bearing surface is interfered with each other.
In certain embodiments, the burner further comprises a distributor disposed on the 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 to the inside of the inner ring chamber;
an annular outer ring chamber; and
and an outer ring channel which is communicated with the outer ring chamber and the outer ring mixing chamber, wherein the outer ring channel is inclined to the outside of the outer ring chamber.
In some embodiments, the burner further comprises 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 ring fire hole communicated with the outer ring cavity, the inner fire cover is provided with an inner ring fire hole communicated with the inner ring cavity, when the burner is horizontally placed, a first included angle is formed between the orthographic projection of the central axes of the inner ring fire hole and the outer ring fire hole on the horizontal plane and the radial direction of the burner, the first included angle is 0-45 degrees, the central axes of the inner ring fire hole and the outer ring fire hole and the central axis of the burner are second included angles, and the angle range of the second included angles is 45-90 degrees.
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 foregoing 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, in 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 present invention;
FIG. 4 is a schematic cross-sectional view of the combustor of FIG. 3 along line IV-IV;
FIG. 5 is a partial schematic perspective view of a burner embodying the present invention;
FIG. 6 is a schematic cross-sectional view of the combustor of FIG. 3 along line VI-VI;
fig. 7 is a schematic perspective view of yet 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 invention;
FIG. 9 is yet another plan view schematic of a bottom cup of an embodiment of the invention;
FIG. 10 is a schematic plan view of an distributor according to an embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of the distributor of FIG. 10 taken along line XI-XI;
FIG. 12 is a schematic plan view of an inner fire cover according to an embodiment of the invention;
FIG. 13 is a schematic cross-sectional view taken along line XIII-XIII in FIG. 12;
FIG. 14 is a schematic plan view of an outer fire cover according to an embodiment of the invention;
fig. 15 is a schematic cross-sectional view taken along line XV-XV in fig. 14.
Description of main reference numerals: the burner 100, the bottom cup 10, the main body 11, the inner ring injection tube 12, the inner ring injection tube inlet 121, the inner ring injection tube outlet 122, the outer ring injection tube 13, the outer ring injection tube inlet 131, the outer ring injection tube outlet 132, the bearing surface 111, the inner ring air inlet slot 112, the inner ring air inlet opening 1121, the first predetermined arc length 11211, the outer ring air inlet slot 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, the third predetermined arc length 11411, the outer ring mixing chamber 115, the outer ring air outlet opening 1151, the fourth predetermined arc length 11511, the inner ring nozzle seat 14, the outer ring nozzle seat 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 flame cover 30, the inner ring flame hole 31, the inner ring inner wall 32, the outer flame cover 40, the outer ring flame 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
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "row direction", "column direction", "center", "longitudinal", "transverse", "length", "width", "thickness", "edge", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships 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 specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "plurality" means an index of two or more, unless specifically defined otherwise.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Referring to fig. 1 to 3 together, a burner 100 according to an embodiment of the present invention may be used on a cooking hob, for example a household gas hob (not shown). When in use, the burner 100 can be horizontally arranged and installed on a gas stove and connected with a gas source, so that the gas is burnt by the burner 100 to cook.
Referring to fig. 4 to 8 together, 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 in operation, the burner 100 can form an inner ring flame and an outer ring flame, and the inner ring mixing chamber 50 and the outer ring mixing chamber 60 supply gas to the inner ring flame and the outer ring flame, respectively. The burner comprises a bottom cup 10, the bottom cup 10 comprising a main body 11, the main body 11 having a substantially disc-shape. The main body 11 includes a bearing surface 111, the bearing surface 111 being substantially circular, and the main body 11 is formed with an inner ring air intake groove 112 and an outer ring air intake groove 113 downward from the bearing surface 111 in the height direction of the main body 11. The inner ring air intake grooves 112 provide primary air to the inner ring gas mixing chamber 50 and the outer ring air intake grooves 113 provide primary air to the outer ring gas mixing chamber 60. The inner ring air inlet groove 112 and the outer ring air inlet groove 113 penetrate through the bearing surface 111. The inner ring air intake groove 112 has an inner ring air intake opening 1121 formed in the bearing surface 111, and the outer ring air intake groove 113 has an outer ring air intake opening 1131 formed in the bearing surface 111, the inner ring air intake opening 1121 and the outer ring air intake opening 1131 being located at opposite ends of a diameter CL1 of the bearing surface 111.
As such, the burner of the embodiment of the present invention employs the inner ring air intake groove 112 and the outer ring air intake groove 113 to supply primary air to the inner ring gas mixing chamber 50 and the outer ring gas mixing chamber 60, respectively, and the inner ring air intake opening 1121 and the outer ring air intake opening 1131 are greatly spaced apart. Therefore, the negative pressure interference between the two air inlets can be reduced when primary air is sucked, the injection performance is improved, and the combustion is more stable.
Referring to FIG. 8, in some embodiments, the area of the inner ring air intake opening 1121 is smaller than the area of the outer ring air intake opening 1131.
Specifically, in general, the inner ring flame of the burner 100 has a lower combustion power, requires less gas, requires less primary air, and the outer ring flame serves as the primary flame for heating the cooker, requiring more gas, and requires more power. Therefore, this can be achieved by setting the area of the inner ring air intake opening 1121 smaller than the area of the outer ring air intake opening 1131. The specific area of the flame burner can be adjusted according to the combustion power required to be achieved by the inner ring flame and the outer ring flame, and the flame burner can be set according to actual requirements.
In certain embodiments, the bottom cup 10 further includes an inner ring injection tube 12 and an outer ring injection tube 13, the inner ring injection tube 12 and the outer ring injection tube 13 being formed on the underside of the main body 11 and in communication with the inner ring gas mixing chamber 50 and the outer ring gas mixing chamber 60, respectively. The inner ring injection pipe 12 is formed with an inner ring injection pipe inlet 121, the inner ring injection pipe inlet 121 is communicated with the inner ring air inlet groove 112, the outer ring injection pipe 13 is formed with an outer ring injection pipe inlet 131, the outer ring injection pipe inlet 131 is communicated with the outer ring air inlet groove 113, and the inner ring injection pipe inlet 121 and the outer ring injection pipe inlet 131 are basically positioned at two opposite ends of one diameter of the main body 11.
Thus, the inner ring jet inlet 121 and the outer ring jet inlet 131 are largely spaced apart. Therefore, the negative pressure interference among the working processes can be further reduced, the injection performance is improved, and the combustion is more stable.
It will be appreciated that when the burner 100 is in operation, the inner annular gas mixing chamber 50 supplies the inner annular flame, the outer annular gas mixing chamber 60 supplies the outer annular flame, the inner annular injection tube 12 supplies the inner annular gas mixing chamber 50, and the outer annular injection tube 13 supplies the outer annular gas mixing chamber 60. In the embodiment of the present invention, the bottom cup 10 may be made of metal materials such as cast iron, aluminum, copper, etc., and may be integrally formed by a mold or formed by machining.
In the present embodiment, the diameter of the main body 11 is the diameter CL1 of the bearing surface 111, that is, the diameter of the bearing surface 111 may be the diameter of the main body 11, and when the similar situation occurs in the following embodiments, it will be understood by referring to the present disclosure. In the example shown in fig. 4 to 7, the inner ring air inlet groove 112 is located at the end where the inner ring injection pipe inlet 121 is located, and the outer ring air inlet groove 113 is located at the end where the outer ring injection pipe inlet 131 is located.
Referring to fig. 8 and 9, in some embodiments, the inner ring ejector 12 and the outer ring ejector 13 are disposed substantially horizontally and on opposite sides of a diameter CL1 of the main body 11, and axes of the inner ring ejector 12 and the outer ring ejector 13 are substantially parallel to the diameter CL1 of the main body 11.
In this way, the injection distance between the inner ring injection pipe 12 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 as possible, and the injection performance is improved.
In certain embodiments, the inner loop ejector 12 is further formed with an inner loop ejector outlet 122 in communication with the inner loop ejector inlet 121, and the outer loop ejector 13 is further formed with an outer loop ejector outlet 132 in communication with the outer loop ejector inlet 131. The main body 11 is further provided 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, wherein an inner ring injection pipe outlet 122 is communicated with the inner ring mixing chamber 114, and an outer ring injection pipe outlet 132 is communicated with the outer ring mixing chamber 115. The inner ring mixing chamber 114 and the outer ring mixing chamber 115 extend through the bearing surface 111, and an inner ring air outlet opening 1141 and an outer ring air outlet opening 1151 are formed in the bearing surface 111, respectively, and the inner ring air outlet opening 1141 and the outer ring air outlet opening 1151 are located at opposite ends of a diameter CL1 of the bearing surface 111 (as shown in fig. 8).
Specifically, in the examples shown in fig. 4 to 7, the inner ring ejector outlet 122 is located at the end where the outer ring ejector inlet 131 is located, and the outer ring ejector outlet 132 is located at the end where the inner ring ejector inlet 121 is located.
Therefore, the injection distance between the inner ring injection pipe 12 and the outer ring injection pipe 13 can be greatly increased, the injection performance is improved, and the fuel gas and the air are mixed more fully.
It will be appreciated that in the example shown in fig. 4 to 7, the inner annular mixing chamber 114 and the outer annular inlet channel 113 are located at the end of the outer annular ejector inlet 131, and are offset from each other and not in communication, and the outer annular mixing chamber 115 and the inner annular inlet channel 112 are located at the end of the inner annular ejector inlet 121. The two are staggered and not communicated.
Thus, the inner ring injection pipe 12 is communicated with the inner ring air inlet groove 112 and the inner ring mixing chamber 114, primary air entering the inner ring injection pipe 12 from the inner ring air inlet groove 112 can be mixed with fuel gas in the inner ring injection pipe 12 preliminarily and then can be mixed fully in the inner ring mixing chamber 114, so that the fuel gas can be combusted more fully during combustion, and more CO is prevented from being generated during combustion. Simultaneously, outer ring injection pipe 13 intercommunication outer loop air inlet tank 113 and outer loop mixing chamber 115, the primary air that gets into outer loop injection pipe 13 from outer loop air inlet tank 113 can carry out preliminary mixing with the gas at outer loop injection pipe 13 and can further abundant mixing outside outer loop mixing chamber 115, makes it can burn more fully when burning, prevents to produce more CO when burning.
Referring to fig. 8, in some embodiments, the inner ring air inlet opening 1121 is substantially circular-sectorial and extends counterclockwise for a first predetermined arc length 11211 from a location proximate to the outer edge of the bearing surface 111 and corresponding to the inner ring jet inlet 121, and the outer ring air inlet opening 1131 is substantially circular-sectorial and extends counterclockwise for a second predetermined arc length 11311 from a location proximate to the outer edge of the bearing surface 111 and corresponding to the outer ring jet inlet 131. The outer and inner arc edges of the inner and outer ring air intake openings 1121, 1131 are concentric with the bearing surface 111, the outer and inner arc edges of the inner and outer ring air intake 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 the inner ring air intake opening 1121 is smaller than the area of the outer ring air intake opening 1131, the outer ring air outlet opening 1151 may be extended into the inner ring air intake opening 1121 to reduce the area of the inner ring air intake opening 1121 so that the inner ring air intake opening 1121 is smaller than the outer ring air intake opening 1131.
In certain embodiments, the area of the inner ring air outlet opening 1141 is smaller than the area of the outer ring air outlet opening 1151.
Generally, during use of the burner 100, the inner ring flame has a low power and a small flame range, and too much intake may result in insufficient combustion and thus low thermal efficiency. Therefore, setting the area of the inner ring air outlet opening 1141 smaller than the area of the outer ring air outlet opening 1151 can prevent the mixed gas entering the inner ring from being too much to cause insufficient combustion.
In addition, referring to FIG. 8, in some embodiments, the inner ring outlet opening 1141 is substantially circular in shape and extends a third predetermined arc length 11411 clockwise from a position proximate the outer edge of the bearing surface 111 and corresponding to the inner ring jet outlet 122. The outer ring outlet opening 1151 is substantially circular in shape and extends a fourth predetermined arc length 11511 clockwise from a position proximate to the outer edge of the bearing surface 111 and corresponding to the outer ring jet outlet 132. The outer and inner arc edges of inner and outer ring air outlet openings 1141 and 1151 are concentric with bearing surface 111. In the example shown in fig. 8, to make the area of the inner ring air outlet opening 1141 smaller than the area of the outer ring air outlet opening 1151, the third predetermined arc length 11411 may be set to be smaller than the radius difference of the outer arc edge and the inner arc edge of the inner ring air outlet opening 1141 and/or the length of the third predetermined arc length 11511 may be set to be smaller than the length of the fourth predetermined arc length 11511.
Referring to fig. 5, 7 and 8, in some embodiments, the depth of the inner annular mixing chamber 114 is gradually shallower in a clockwise direction, and the outer annular ejector tube 13 interferes with the orthographic projection of the inner annular mixing chamber 114 on the bearing surface 111. The depth of the outer ring mixing chamber 115 becomes progressively shallower in the clockwise direction, and the orthographic projections of the inner ring ejector tube 12 and the outer ring mixing chamber 115 on the bearing surface 111 interfere with each other.
In this way, the space above the inner ring injection pipe 12 and the outer ring injection pipe 13 can be effectively utilized under the premise of ensuring the height of the bottom cup 10, so that the space of the inner ring mixing chamber 114 and the outer ring mixing chamber 115 is as large as possible, the fuel gas and the air can be mixed more fully, and the inner ring mixing chamber 114 and the outer ring mixing chamber 115 are provided with a certain gradient, so that the air flow resistance can be reduced, and the performance of the combustor 100 is improved. Meanwhile, the overall height of the burner 100 is advantageously reduced, and the burner 100 can be more miniaturized.
In some embodiments, the bottom cup 10 further includes an inner ring nozzle seat 14 in communication with the inner ring air inlet slot 112 and an outer ring nozzle seat 15 in communication with the outer ring air 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 for mounting an inner ring nozzle (not shown), and the outer ring nozzle holder 15 is for mounting an outer ring nozzle (not shown).
The inner ring nozzle seat 14 corresponds to the inner ring injection pipe 12, and the outer ring nozzle seat 15 corresponds to the outer ring injection pipe 13. The gas is sprayed into the inner ring injection pipe 12 through the inner ring nozzle arranged on the inner ring nozzle seat 14, the gas flow speed of the gas is high, negative pressure is formed when the gas is sprayed into the inner ring injection pipe 12, at this time, the outside air is 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 injected into the outer ring injection pipe 13 through the outer ring nozzle installed on the outer ring nozzle seat 15, the gas flow speed is high, negative pressure is formed when the gas is injected into the outer ring injection pipe 13, at this time, the external 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 the gas is further mixed in the outer ring mixing chamber 115.
It will be appreciated 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, or may be formed separately and 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 base cup 10, the distributor 20 being formed with an inner annular chamber 21, an inner annular channel 22, an outer annular chamber 23, and an outer annular channel 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 channel 22 slopes inwardly of the inner ring chamber 21 and the outer ring channel 24 slopes outwardly 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. In this way, the fuel gas and the primary air can be mixed more fully, the air pressure impact caused by the overlarge air pressure can be prevented, and the performance of the burner is improved. Meanwhile, when the distributor 20 is manufactured, the distributor can be manufactured and molded easily through an up-and-down demolding process, so that the manufacturing efficiency and the yield are improved, and the manufacturing cost is reduced.
It will be appreciated that the inner annular chamber 21 of the distributor 20 and the inner annular mixing chamber 114 on the base cup 10 communicate to form the inner annular gas mixing chamber 50 of the burner 100, and the outer annular chamber 23 of the distributor 20 and the outer annular mixing chamber 115 on the base cup 10 communicate to form the outer annular 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 cooperating with the flame divider 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 ring fire hole 41 communicating with the outer ring chamber 23, the inner fire cover 30 is provided with an inner ring fire hole 31 communicating with the inner ring chamber 21, when the burner 100 is horizontally placed, an orthographic projection of a central axis of the inner ring fire hole 31 and the outer ring fire hole 41 on a horizontal plane forms a first included angle α with a radial direction of the burner 100, the first included angle α is 0 ° -45 °, a central axis of the inner ring fire hole 31 and the outer ring fire hole 41 forms a second included angle β with a central axis of the burner 100, and an angle range of the second included angle β is 45 ° -90 °.
In this way, the mixed gas can be ejected from the inner ring flame holes 31 and the outer ring flame holes 41, and the inner ring flame and the outer ring flame are formed after being ignited. The existence of the first included angle alpha and the second included angle beta can form inwardly gathered rotary flames, so that heating efficiency is improved. In addition, when the first included angle α is too large, flame convergence is not facilitated, and when the second included angle β is too small, the angle of the flame holes with the axial direction of the burner 100 is too small, and in use, external residues and dirt easily enter the flame holes to block the flame holes. Thus, setting the first angle α at 0 ° -45 ° and the second angle β at 45 ° -90 ° may make flames of the burner 100 more concentrated and less likely to block the fire hole.
Specifically, the inner ring flame holes 31 and the inner ring chamber 21 communicate, and the mixed gas in the inner ring gas mixing chamber 50 may be ejected from the inner ring flame holes 31 to form an inner ring flame, the outer ring flame holes 41 and the outer ring chamber 23 communicate, and the mixed gas in the outer ring gas mixing chamber 60 may be ejected from the outer ring flame holes 41 to form an outer ring flame.
It will be appreciated that in the example of fig. 12 and 14, the inner and outer ring fire holes 31, 41 are arranged in a substantially counter-clockwise centripetal rotation. In other embodiments, the inner ring fire hole 31 and the outer ring fire hole 41 may also be disposed in a clockwise centripetal rotation, which is not particularly limited.
Further, it is also understood that the first angle α formed by the inner and outer ring flame holes 31 and 41 and the burner 100 in the radial direction and the second angle β formed by the central axis of the burner 100 may be the same or different, and may be within the above-specified ranges.
It should be noted that, the inner flame cover 30 cooperates with the inner ring chamber 21 of the distributor 20, the inner flame cover 30 defines the inner ring gas mixing chamber 50 of the burner 100, the outer flame cover 40 cooperates with the outer ring chamber 23 of the distributor 20, and the outer flame cover 40 defines the outer ring gas mixing chamber 60 of the burner 100.
In certain embodiments, the outer fire cover 40 includes an outer ring inner wall 42, the inner fire cover 30 includes an inner ring inner wall 32, the outer ring fire holes 41 are disposed on the outer ring inner wall 42, and the inner ring fire holes 31 are disposed on the inner ring inner wall 32.
In this way, the inner ring fire holes 31 face the inner side of the inner fire cover 30, and the outer ring fire holes 41 face the inner side of the outer fire cover 40. In this way, the burner 100 can form a cohesive flame, and heat diffusion to the outside can be reduced, further improving heat efficiency.
Referring to fig. 4 to 7 again, when the burner 100 according to the embodiment of the present invention is operated, the inner ring nozzle injects fuel gas into the inner ring injection pipe 12, the gas flow rate 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 arrow in fig. 4 and 5 indicates the inner ring primary air inlet direction). Then, the primary air and the fuel gas are initially mixed in the inner ring injection pipe 12 and then enter the inner ring mixing chamber 114 for further mixing, then enter the inner ring channel 22 of the distributor 20 through the inner ring air outlet opening 1141, 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 flames. In addition, the outer ring nozzle injects fuel gas to the outer ring injection pipe 13, the gas flow speed of the fuel gas is high, negative pressure is formed in the outer ring injection pipe 13, and external primary air is sucked into the outer ring air inlet groove 113 and the outer ring injection pipe 13 (the dotted arrows in fig. 6 and 7 indicate the air inlet direction of the outer ring primary air). Then, the primary air and the fuel gas are initially mixed in the outer ring injection pipe 13, then enter the outer ring mixing chamber 115 for further mixing, then enter the outer ring channel 24 of the distributor 20 through the outer ring air outlet opening 1151, then are guided into the outer ring chamber 23 through the outer ring channel 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 terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A burner, wherein the burner is formed with an inner annular gas mixing chamber and an outer annular gas mixing chamber, the burner comprising:
a base cup comprising a substantially disc-shaped body including a substantially circular bearing surface, the body being formed with:
an inner ring air inlet groove penetrating the bearing surface, wherein the inner ring air inlet groove is used for providing primary air for the inner ring gas mixing cavity, and an inner ring air inlet opening is formed on the bearing surface; and
the outer ring air inlet groove penetrates through the bearing surface and is used for providing primary air for the outer ring gas mixing cavity, 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 burner includes:
the inner ring injection pipe is formed with an inner ring injection pipe inlet, the inner ring injection pipe inlet is communicated with the inner ring air inlet, the outer ring injection pipe is formed with an outer ring injection pipe inlet, the outer ring injection pipe inlet is communicated with the outer ring air inlet, the inner ring injection pipe inlet is basically positioned at two opposite ends of one diameter of the main body;
the area of the inner ring air inlet opening is smaller than that of the outer ring air inlet opening, and 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 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;
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 injection pipe is formed with an inner ring injection pipe outlet communicated with an inner ring injection pipe inlet, the outer ring injection pipe is formed with an outer ring injection pipe outlet communicated with an outer ring injection pipe inlet, and the main body is formed with:
an inner ring mixing chamber penetrating the bearing surface and communicated with the outlet of the inner ring injection pipe, wherein an inner ring air outlet opening is formed on the bearing surface in 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 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;
the inner ring ejector tube forms an inner ring ejector tube outlet communicated with the inner ring ejector tube inlet, the outer ring ejector tube forms an outer ring ejector tube outlet communicated with the outer ring ejector tube inlet, the main body comprises a bearing surface which is basically circular, and the main body is provided with:
an inner ring mixing chamber penetrating the bearing surface and communicated with the outlet of the inner ring injection pipe, wherein an inner ring air outlet opening is formed on the bearing surface in 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 area of the inner ring air outlet opening is smaller than that of the outer ring air outlet opening;
the inner ring air outlet opening is basically in a circular sector shape 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;
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 predetermined arc length is smaller than the fourth predetermined arc length.
2. The burner of claim 1 wherein the area of the inner ring air intake opening is smaller than the area of the outer ring air intake opening.
3. The burner of claim 1, wherein the axes of the inner and outer ring eductor tubes are substantially horizontal and are located on opposite sides of a diameter of the main body, and wherein the axes of the inner and outer ring eductor tubes are each substantially parallel to the diameter.
4. The burner of claim 1, wherein the inner ring jet tube forms an inner ring jet tube outlet in communication with the inner ring jet tube inlet, the outer ring jet tube forms an outer ring jet tube outlet in communication with the outer ring jet tube inlet, the main body includes a substantially circular bearing surface, the main body is formed with:
an inner ring mixing chamber penetrating the bearing surface and communicated with the outlet of the inner ring injection pipe, wherein an inner ring air outlet opening is formed on the bearing surface in 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 positioned at two opposite ends of one diameter of the bearing surface.
5. The burner of claim 4 wherein said inner annular outlet opening is substantially circular in sector shape, said inner annular mixing chamber being progressively shallower in depth in a clockwise direction, said outer annular ejector tube interfering with the orthographic projection of said inner annular mixing chamber on said bearing surface;
the outer ring air outlet opening is basically in a circular sector shape, the depth of the outer ring mixing chamber gradually becomes shallow in the clockwise direction, and the orthographic projection of the inner ring injection pipe and the outer ring mixing chamber on the bearing surface is interfered with each other.
6. The burner of claim 4, further comprising an distributor disposed on the 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 to the inside of the inner ring chamber;
an annular outer ring chamber; and
and an outer ring channel which is communicated with the outer ring chamber and the outer ring mixing chamber, wherein the outer ring channel is inclined to the outside of the outer ring chamber.
7. The burner of claim 6, further comprising an inner fire cover and an outer fire cover mated with the distributor, wherein the inner fire cover and the outer fire cover are concentrically disposed, the outer fire cover is provided with an outer ring fire hole communicating with the outer ring chamber, the inner fire cover is provided with an inner ring fire hole communicating with the inner ring chamber, when the burner is horizontally placed, an orthographic projection of a central axis of the inner ring fire hole and the outer ring fire hole on a horizontal plane forms a first included angle with a radial direction of the burner, the first included angle is 0 ° -45 °, a central axis of the inner ring fire hole and the outer ring fire hole forms a second included angle with the central axis of the burner, and the second included angle ranges from 45 ° -90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811026856.0A CN109000239B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811026856.0A CN109000239B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000239A CN109000239A (en) | 2018-12-14 |
| CN109000239B true CN109000239B (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811026856.0A Active CN109000239B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner body |
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| Country | Link |
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| CN (1) | CN109000239B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443841B (en) * | 2019-09-05 | 2021-11-26 | 宁波方太厨具有限公司 | Upper air inlet burner |
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| 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 |
| CN202267061U (en) * | 2011-08-30 | 2012-06-06 | 比亚迪股份有限公司 | Combustor of gas kitchen range |
| CN104696963A (en) * | 2015-03-13 | 2015-06-10 | 广东美的厨房电器制造有限公司 | Combustor |
| CN104713083A (en) * | 2015-03-12 | 2015-06-17 | 广东美的厨房电器制造有限公司 | Burner and gas appliance |
| CN106678804A (en) * | 2016-12-23 | 2017-05-17 | 广东美的厨房电器制造有限公司 | Combustor and fuel gas stove |
| 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
- 2018-09-04 CN CN201811026856.0A patent/CN109000239B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202267061U (en) * | 2011-08-30 | 2012-06-06 | 比亚迪股份有限公司 | Combustor of gas kitchen range |
| CN104713083A (en) * | 2015-03-12 | 2015-06-17 | 广东美的厨房电器制造有限公司 | Burner and gas appliance |
| CN104696963A (en) * | 2015-03-13 | 2015-06-10 | 广东美的厨房电器制造有限公司 | Combustor |
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109000239A (en) | 2018-12-14 |
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