CN108361703B - Burner and gas cooker - Google Patents

Burner and gas cooker Download PDF

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Publication number
CN108361703B
CN108361703B CN201810228732.4A CN201810228732A CN108361703B CN 108361703 B CN108361703 B CN 108361703B CN 201810228732 A CN201810228732 A CN 201810228732A CN 108361703 B CN108361703 B CN 108361703B
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CN
China
Prior art keywords
injection pipe
burner
fire
fire cover
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810228732.4A
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Chinese (zh)
Other versions
CN108361703A (en
Inventor
高尤军
张炳卫
丁斐
何贤德
董玉泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea Kitchen Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201810228732.4A priority Critical patent/CN108361703B/en
Publication of CN108361703A publication Critical patent/CN108361703A/en
Application granted granted Critical
Publication of CN108361703B publication Critical patent/CN108361703B/en
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Classifications

    • 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
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • 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
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • 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
    • 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
    • F23D14/70—Baffles or like flow-disturbing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/002—Gaseous fuel
    • F23K5/007—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14003—Special features of gas burners with more than one nozzle

Landscapes

  • 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 and a gas cooker. The burner includes first fire lid, second fire lid, first injection pipe and second injection pipe, second fire lid interval encircles first fire lid setting, first fire lid forms first gas chamber, second fire lid forms second gas chamber, first injection pipe connection is in the bottom of first fire lid and communicates first gas chamber, second injection pipe connection is in the bottom of second fire lid and communicates second gas chamber, the initial plane of first injection pipe is the same with the initial plane of second injection pipe, the termination plane of first injection pipe is different with the termination plane of second injection pipe. Above-mentioned combustor can make the distance between two nozzles of two injection pipe air supplies unanimous, makes the nozzle can adopt the mode of cut straightly with the injection pipe to be connected, and the termination plane of first injection pipe is different with the termination plane of second injection pipe, can increase the distance between the export of first injection pipe and the export of second injection pipe, satisfies the demand of major diameter fire lid.

Description

Burner and gas cooker
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a combustor and a gas cooker.
Background
In the related art, in order to ensure that the burner has a certain heat load, a fire cover with a certain diameter must be ensured, but the result that the center distance between the two injection pipes is relatively large is that the distance between the upper two nozzles of the gas valve is unequal to the distance between the inlets of the two injection pipes, and a transition pipe must be used to connect the nozzles and the injection pipes, so that the production cost is increased and the assembly is inconvenient.
Disclosure of Invention
Embodiments of the present invention provide a burner and a gas cooker.
The burner comprises a first fire cover, a second fire cover, a first injection pipe and a second injection pipe, wherein the second fire cover is arranged around the first fire cover at intervals, the first fire cover forms a first gas chamber, the second fire cover forms a second gas chamber, the first injection pipe is connected to the bottom of the first fire cover and communicated with the first gas chamber, the second injection pipe is connected to the bottom of the second fire cover and communicated with the second gas chamber, the initial plane of the first injection pipe is identical to the initial plane of the second injection pipe, and the termination plane of the first injection pipe is different from the termination plane of the second injection pipe.
According to the burner provided by the embodiment of the invention, the initial plane of the first injection pipe is the same as the initial plane of the second injection pipe, so that the distance between two nozzles for supplying air to the two injection pipes is consistent, the nozzles can be connected with the injection pipes in a direct-insertion mode, the termination plane of the first injection pipe is different from the termination plane of the second injection pipe, the distance between the outlet of the first injection pipe and the outlet of the second injection pipe can be increased, the requirement of a large-diameter fire cover is met, the high heat load of the burner is ensured, the transition pipe can be avoided to connect the nozzles with the injection pipes, the cost is saved, and the assembly efficiency of the burner is improved.
In some embodiments, the side wall of the first fire cover is provided with a first fire hole, the burner comprises a sleeve, the sleeve is sleeved at the air outlet end of the first injection pipe, and the first fire cover is arranged on the sleeve.
In some embodiments, the upper surface of the second fire cover forms a wave surface, the wave surface forms a plurality of wave crests and a plurality of wave troughs alternately arranged at intervals along the circumferential direction of the second fire cover, and the wave crests are provided with second fire holes.
In certain embodiments, the second fire hole is in the shape of a bar.
In some embodiments, the side of the wave surface that is distal to the burner interior is higher than the side of the wave surface that is proximal to the burner interior.
In certain embodiments, a flow equalization plate is disposed within the second gas chamber, the flow equalization plate at least partially opposite the outlet of the second eductor.
In some embodiments, the flow equalizing plate is provided with a plurality of air holes arranged at intervals, and at least a plurality of air holes in the plurality of air holes are opposite to the outlet of the second injection pipe.
In certain embodiments, the burner comprises a first nozzle mount and a second nozzle mount, the first nozzle mount is disposed at the inlet of the first injection pipe, the second nozzle mount is disposed at the inlet of the second injection pipe, the first nozzle mount is provided with a first mounting hole, and the second nozzle mount is provided with a second mounting hole.
In certain embodiments, the burner comprises an air inlet assembly comprising a valve body, a first air inlet pipe, a second air inlet pipe, a first nozzle and a second nozzle, wherein the first nozzle is arranged at the air outlet of the first air inlet pipe and is arranged at the inlet of the first injection pipe, the second nozzle is arranged at the air outlet of the second air inlet pipe and is arranged at the inlet of the second injection pipe, and the valve body is connected with the first air inlet pipe and the second air inlet pipe.
The embodiment of the invention provides a gas cooker, which comprises the burner of any embodiment.
According to the gas cooker provided by the embodiment of the invention, the initial plane of the first injection pipe and the initial plane of the second injection pipe of the burner are the same, so that the distance between two nozzles for supplying gas to the two injection pipes is consistent, the nozzles can be connected with the injection pipes in a direct-insertion mode, the termination plane of the first injection pipe and the termination plane of the second injection pipe are different, the distance between the outlet of the first injection pipe and the outlet of the second injection pipe can be increased, the requirement of a large-diameter fire cover is met, the large heat load of the burner is ensured, the transition pipe can be avoided to connect the nozzles and the injection pipes, the cost is saved, and the assembly efficiency of the burner is improved.
Additional aspects and advantages of embodiments 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 embodiments of the invention.
Drawings
The foregoing and/or additional aspects and advantages of embodiments of the invention will become apparent and may be better understood from the description of embodiments with reference to the following drawings, in which:
fig. 1 is a schematic perspective view of a burner according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of a burner according to an embodiment of the present invention.
Fig. 3 is a schematic plan view of an ejector tube of a burner in accordance with an embodiment of the present invention.
FIG. 4 is a further schematic plan view of an ejector tube of a burner in accordance with an embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a burner according to an embodiment of the present invention.
FIG. 6 is a partially exploded schematic illustration of a burner according to an embodiment of the present invention.
FIG. 7 is another exploded schematic view of a burner of an embodiment of the present invention.
Fig. 8 is a further schematic plan view of a burner according to an embodiment of the invention.
Fig. 9 is a perspective view of a second fire cover of the burner of the embodiment of the present invention.
Fig. 10 is a schematic plan view of an air intake assembly of a burner according to an embodiment of the present invention.
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 "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the devices or elements 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, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; 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. 1-5, a burner 100 according to an embodiment of the present invention includes a first fire cover 10, a second fire cover 20, a first injection pipe 30 and a second injection pipe 40, wherein the second fire cover 20 is disposed around the first fire cover 10 at intervals, the first fire cover 10 forms a first gas chamber 101, the second fire cover 20 forms a second gas chamber 202, the first injection pipe 30 is connected to the bottom of the first fire cover 10 and is communicated with the first gas chamber 101, the second injection pipe 40 is connected to the bottom of the second fire cover 20 and is communicated with the second gas chamber 202, a start plane a of the first injection pipe 30 is the same as a start plane B of the second injection pipe 40, and a termination plane C of the first injection pipe 30 is different from a termination plane D of the second injection pipe 40.
According to the burner 100 of the embodiment of the invention, the initial plane A of the first injection pipe 30 is the same as the initial plane B of the second injection pipe 40, so that the distance between two nozzles for supplying air to the two injection pipes is consistent, the nozzles can be connected with the injection pipes in a direct inserting mode, the termination plane C of the first injection pipe 30 is different from the termination plane D of the second injection pipe 40, the distance between the outlet 305 of the first injection pipe 30 and the outlet 406 of the second injection pipe 40 can be increased, the requirement of a large-diameter fire cover is met, the high heat load of the burner 100 is ensured, the transition pipe is avoided to connect the nozzles and the injection pipes, the cost is saved, and the assembly efficiency of the burner 100 is improved.
Specifically, the first injection pipe 30 includes a first inlet section 302 and a first outlet section 303 that are connected, wherein an inlet of the first inlet section 302 serves as an inlet 301 of the first injection pipe 30, the first outlet section 303 is connected to the bottom of the first fire cover 10 and communicates with the first gas chamber 101, and an outlet of the first outlet section 303 serves as an outlet 305 of the first injection pipe 30. In the present embodiment, the outlet of the first outlet section 303 is vertically upward, and the first outlet section 303 is bent and is used to guide the fuel gas (for example, the fuel gas flowing horizontally in fig. 2) flowing from the first inlet section 302 to flow vertically upward into the first fuel gas chamber 101; the second injection pipe 40 comprises a second inlet section 402 and a second outlet section 403 which are connected, wherein the inlet of the second inlet section 402 is used as the inlet 401 of the second injection pipe, the second outlet section 403 is connected at the bottom of the second fire cover 20 and is communicated with the second gas chamber 202, the outlet of the second outlet section 403 is used as the outlet 406 of the second injection pipe 40, the outlet of the second outlet section 403 is vertically upward, and the second outlet section 403 is bent and is used for guiding the gas flowing out of the second inlet section 402 (for example, the gas flowing horizontally in fig. 2) to vertically upward flow into the second gas chamber 202. This results in less pressure loss in the flow of the fuel gas in the first and second injection pipes 30, 40 and smoother flow, thereby resulting in better combustion.
The first introducing section 302 and the second introducing section 402 are horizontally arranged at intervals, so that on one hand, the vertical height dimension of the burner 100 can be reduced, and the occupied space of the burner 100 can be reduced; on the other hand, the gas valve of the gas inlet pipe is more convenient to connect, reduces the design difficulty of the gas inlet pipe,
The central axis M at the outlet of the first lead-out section 303 is coaxial with the central axis Z of the first gas chamber 101. In the embodiment of the present invention, the distance L5 between the outlet 305 of the first ejector 30 and the inlet 301 of the first ejector 30 is 140mm. Of course, in other embodiments, the distance L5 between the outlet 305 of the first ejector 30 and the inlet 301 of the first ejector 30 is not limited to 140mm, and may be any other suitable value.
It will be appreciated that the plane of the inlet of the first introduction section 302 perpendicular to the central axis X of the first introduction section 302 forms the start plane a of the first ejector tube 30, and the plane of the inlet of the second introduction section 402 perpendicular to the central axis Y of the second introduction section 402 forms the start plane B of the second ejector tube 40. As shown in fig. 3 and 4, the start plane a of the first ejector tube 30 and the start plane B of the second ejector tube 40 are identical or are in the same plane. The plane at the outlet of the first outlet section 303 perpendicular to the central axis X of the first inlet section 302 and passing through the central axis M at the outlet of the first outlet section 303 forms the termination plane C of the first ejector 30.
The plane of the outlet of the second outlet section 403 perpendicular to the central axis Y of the second inlet section 402 and passing through the central axis N of the outlet of the second outlet section 403 forms a termination plane D of the second ejector tube 40, as shown in fig. 3 and 4, where the termination plane C of the first ejector tube 30 and the termination plane D of the second ejector tube 40 are different or are in different planes.
Referring to fig. 8 and 10, in order to allow the ejector tube to be inserted directly into the nozzle, the distance L1 between the inlet 301 of the first ejector tube 30 and the inlet 401 of the second ejector tube is equal to the distance L2 between the two nozzles. For example, when the distance L2 between the two nozzles is 40mm, the distance L1 between the inlet 301 of the first injection pipe 30 and the inlet 401 of the second injection pipe is also 40mm, but in order to secure the heat load of the burner 100, the outer diameter Φ1 of the first fire cover 10 is 40mm, and the outer diameter Φ2 of the second fire cover 20 is 156mm. And the diameter difference between the first fire cover 10 and the second fire cover 20 is larger than 80mm (the radius difference is larger than 40 mm), the distance L3 between the outlet 305 of the first injection pipe 30 and the outlet 406 of the second injection pipe 40 can be increased by making the termination plane C of the first injection pipe 30 and the termination plane D of the second injection pipe 40 different, so that the requirement that the diameter difference between the first fire cover 10 and the second fire cover 20 is larger than 40mm can be met, the diameter of the second fire cover 20 can be increased, and the heat load of the burner 100 can be increased.
Of course, in other embodiments, the distance L2 between the two nozzles, the outer diameter Φ1 of the first fire cover 10 and the outer diameter Φ2 of the second fire cover 20 are not limited to the above values, but may be other values, so long as the equality of L1 and L2 is ensured and the thermal load requirement is satisfied.
In the embodiment of the invention, the bottom of the second fire cover 20 is provided with a bottom plate 203, and the second injection pipe 40 penetrates through the bottom plate 203 to the bottom of the second gas chamber 202. Thus, the bottom plate 203 provides mounting support for the second fire cover 20, and also seals the bottom of the second gas chamber 202 from gas leakage.
In one example, the first and second ejector 30, 40 can be made of stainless steel. Thus, the processing technology of the first injection pipe 30 and the second injection pipe 40 is simple, the production efficiency is improved, and the automatic production is realized.
The top and the bottom of the first ejector tube 30 are respectively provided with at least one first reinforcing rib 304, the top and the bottom of the second ejector tube 40 are respectively provided with at least one second reinforcing rib 405, the combustor 100 comprises a first mounting plate 50 and a second mounting plate 60, the first mounting plate 50 is connected with the first reinforcing rib 304 at the top of the first ejector tube 30 and the second reinforcing rib 405 at the top of the second ejector tube 40, and the second mounting plate 60 is connected with the first reinforcing rib 304 at the bottom of the first ejector tube 30 and the second reinforcing rib 405 at the bottom of the second ejector tube 40. Thus, the first injection pipe 30 and the second injection pipe 40 are connected through the first mounting plate 50 and the second mounting plate 60, and the relative positions of the first injection pipe and the second injection pipe are fixed, so that the structure of the combustor 100 is more stable. In the embodiment of the present invention, the number of the second mounting plates 60 is two, the two second mounting plates 60 are spaced apart, the distance L6 between the two second mounting plates 60 is 64mm, and one of the second mounting plates 60 is located below the second fire cover 20 and is used for connecting with the bottom shell of the burner 100. Of course, in other embodiments, the distance L6 between the two second mounting plates 60 is not limited to 64mm, and may be other suitable values.
Referring to fig. 6 and 7, at least one first reinforcing rib 304 extends to the outer surface of the first lead-out section 303, at least one second reinforcing rib 405 extends to the outer surface of the second lead-out section 403, the burner 100 includes a fixing plate 70, a thermocouple and an ignition needle, the fixing plate 70 is penetrated by the first lead-out section 303 and the second lead-out section 403, the fixing plate 70 is carried on the top of the first reinforcing rib 304 and the top of the second reinforcing rib 405, and the ignition needle and the thermocouple are fixed on the fixing plate 70 and penetrate the fixing plate 70 to a position above the fixing plate 70 near the first fire cover 10.
Referring to fig. 5, the bottom plate 203 is located above the fixing plate 70, a plurality of brackets 110 are connected to the upper surface of the fixing plate 70, the brackets 110 are approximately in a Z-shape (as shown in fig. 7), and the top of each bracket 110 is connected to the bottom of the bottom plate 203, so that the bottom plate 203 is fixedly connected to the fixing plate 70 through the brackets 110, and the structure of the burner 100 is more stable. The bracket 110 and the bottom plate 203, and the bracket 110 and the fixing plate 70 may be connected by screws.
In the embodiment of the present invention, the bottom plate 203 is annular, the number of the brackets 110 is 3, and the 3 brackets 110 are uniformly arranged around the circumference of the bottom plate 203. This makes the load of the bottom plate 203 uniform, and the connection between the bottom plate 203 and the fixing plate 70 is more stable.
Referring to fig. 5 and 6, in some embodiments, a first fire hole 102 is formed in a side wall of the first fire cover 10, the burner 100 includes a sleeve 120, the sleeve 120 is sleeved on an air outlet end of the first injection pipe 30, and the first fire cover 10 is disposed on the sleeve 120. In this way, the assembly of the first fire cover 10 and the first injection pipe 30 is realized through the sleeve 120, and the first fire hole 102 is formed in the side wall of the first fire cover 10, so that oil drops and impurities can be prevented from falling into the first fire hole 102 from the top of the first fire cover 10 to cause the first fire hole 102 to be blocked, thereby being beneficial to improving the combustion effect of the combustor 100.
Specifically, the sleeve 120 is formed with a first stepped surface 122, the sleeve 120 is threaded through the first lead-out section 303, and the first stepped surface 122 is carried on top of the first lead-out section 303. The first outlet section 303 thus limits the position of the sleeve 120 and the assembly between the sleeve 120 and the first injector tube 30 is more stable.
The sleeve 120 comprises a first connecting section 123 and a second connecting section 124, the first connecting section 123 forms a first step surface 122, the first step surface 122 extends radially outwards from the outer surface of the first connecting section 123, the bottom of the second connecting section 124 forms a second step surface 125, the second step surface 125 extends radially outwards from the outer surface of the second connecting section 124, the first connecting section 123 is penetrated with a first leading-out section 303, the second connecting section 124 is penetrated with a first connecting section 123, and the second step surface 125 is borne at the top of the first connecting section 123. The top internal surface of second linkage segment 124 has seted up mounting groove 126, and first fire lid 10 card is established at mounting groove 126 and is born in the bottom of mounting groove 126, and the bottom of first gas chamber 101 communicates with the export of second linkage segment 124. Thus, the first step surface 122 and the second step surface 125 extend radially outwards, and the diameters of the first connecting section 123 and the second connecting section 124 are gradually increased, so that the fuel gas is uniformly distributed in the first fuel gas chamber 101, the assembly among the first connecting section 123, the second connecting section 124 and the first fire cover 10 is stable and compact, and the leakage of the fuel gas is avoided.
Referring to fig. 9, in some embodiments, the upper surface of the second fire cover 20 forms a wave surface 204, and the wave surface 204 forms a plurality of peaks 205 and a plurality of valleys 206 alternately arranged at intervals along the circumferential direction of the second fire cover 20, and the peaks 205 are provided with second fire holes 207. In this way, when the flame burns, secondary air can be supplemented from the trough 206 to the crest 205 to form a three-dimensional air supplementing mode, so that the combustion is more sufficient, the heat load of the burner 100 is also improved, two adjacent second fire holes 207 are arranged at intervals, and each second fire hole 207 burns independently, so that the combustion effect is better.
In some embodiments, the second fire hole 207 is in the shape of a bar. As such, the flame at the second fire hole 207 is larger, so that the heat load of the burner 100 is larger.
Specifically, the second flame holes 207 are formed in a radial shape along the longitudinal direction of the second flame cover 20, and the plurality of second flame holes 207 are distributed substantially radially, thereby forming a radial bar flame, and the burner 100 is heated effectively.
Further, the wave trough 206 is in a shape of a bar, and the plurality of wave troughs 206 are radially distributed along the radial direction of the second fire cover 20 in the length direction of the wave trough 206. In this way, the wave troughs 206 on two sides of each second fire hole 207 are closer to the length direction of the second fire hole 207, and as the gas burns at the wave crests 205, an air pressure difference is formed between the wave crests 205 and the wave troughs 206, and air in the wave troughs 206 can flow upwards to the wave crests 205 along the side walls of the wave troughs 206, so that secondary air can be better supplemented to the second fire holes 207, and the combustion efficiency of the combustor 100 can be improved.
In some embodiments, the side of the wave surface 204 that is distal to the inner side of the burner 100 is higher than the side of the wave surface 204 that is proximal to the inner side of the burner 100. In this way, the gas outlet structure with low inside and high outside is formed, the flow direction trend of the gas is met, the heating effect of the burner 100 is better, and the inclined wave surface 204 can also play a role in heat preservation, so that heat dissipation can be reduced.
In certain embodiments, a flow equalization plate 208 is disposed within the second gas chamber 202, the flow equalization plate 208 being at least partially opposite the outlet 406 of the second injector tube 40.
In this way, after the airflow flowing out from the outlet 406 of the second injection pipe 40 hits the flow equalizing plate 208, the airflow flows towards two sides along the flow equalizing plate 208, is more uniformly distributed in the second gas chamber 202, and then enters the second fire holes 207 for combustion, so that the gas flows to the second fire holes 207 uniformly, which is helpful for improving the combustion effect of the burner 100 and making the flame distribution more uniform.
Specifically, the flow equalizing plate 208 is in a flat plate shape of a fan ring shape, so that the flow equalizing plate can be well matched with the annular second gas chamber 202, and better covers the upper part of the outlet 406 of the second injection pipe 40, so that the gas is more uniformly distributed in the second gas chamber 202. In addition, referring to fig. 5, the included angle between the flow equalizing plate 208 and the horizontal direction is greater than 0 degrees, so that the resistance to the fuel gas can be reduced, and the flow velocity of the fuel gas is ensured.
In some embodiments, the flow equalizing plate 208 is provided with a plurality of air holes 209 that are arranged at intervals, and at least a plurality of air holes 209 in the plurality of air holes 209 are opposite to the outlet 406 of the second ejector 40. Thus, a part of the fuel gas can flow from the air holes 209 to the upper part of the flow equalizing plate 208, and another part of the fuel gas can flow from the flow equalizing plate 208 between the air holes 209 to other positions of the second fuel gas chamber 202.
It will be appreciated that the gas enters the second gas chamber 202 from the outlet 406 of the second injection pipe 40, and after a part of the gas collides with the flow equalizing plate 208, the movement direction of the gas is changed to flow around the second gas chamber 202, and the gas is required above the flow equalizing plate 208, so that another part of the gas can reach above the flow equalizing plate 208 through the air holes 209 of the flow equalizing plate 208, so that the gas is more uniformly distributed in the second gas chamber 202, and thus the gas flows uniformly to the second fire holes 207.
In certain embodiments, the burner 100 includes a first nozzle mount 130 and a second nozzle mount 140, the first nozzle mount 130 being disposed at the inlet 301 of the first injection duct 30, the second nozzle mount 140 being disposed at the inlet 401 of the second injection duct, the first nozzle mount 130 being provided with a first mounting hole 132, the second nozzle mount 140 being provided with a second mounting hole 142. In this manner, the first nozzle 154 of the burner 100 may be mounted at the first mounting hole 132 and the second nozzle 155 of the burner 100 may be mounted at the second mounting hole 142, facilitating the in-line connection of the nozzle to the injector tube.
Specifically, in the present embodiment, the first nozzle mount 130 and the second nozzle mount 140 are integrally formed, so that the first injection pipe 30 and the second injection pipe 40 are connected to the second nozzle mount 140 through the first nozzle mount 130, and the structure of the burner 100 is more stable. Meanwhile, the integrally structured nozzle mount may also improve the assembly efficiency of the burner 100.
Further, the first nozzle mounting seat 130 has a plurality of primary air supplementing holes 133 formed on both sides of the first mounting hole 132, and the second nozzle mounting seat 140 has a plurality of primary air supplementing holes 133 formed on both sides of the second mounting hole 142, so that primary air can flow from the primary air supplementing holes 133 to between the inlet of the injection pipe and the nozzle to supplement primary air for fuel gas, so that fuel gas burns more fully and the combustion effect is better.
In certain embodiments, the combustor 100 includes an air intake assembly 150, the air intake assembly 150 including a valve body 151, a first air intake pipe 152, a second air intake pipe 153, a first nozzle 154 and a second nozzle 155, the first nozzle 154 being mounted at an air outlet of the first air intake pipe 152 and disposed at an inlet 301 of the first injector pipe 30, the second nozzle 155 being mounted at an air outlet of the second air intake pipe 153 and disposed at an inlet 401 of the second injector pipe, the valve body 151 connecting the first air intake pipe 152 and the second air intake pipe 153. Therefore, the nozzle can be connected with the injection pipe in a direct insertion mode.
It will be appreciated that the air inlet assembly 150 is generally mass produced, the distance between the first air inlet pipe 152 and the second air inlet pipe 153 is constant, the distance L2 between the first nozzle 154 and the second nozzle 155 is also constant, and when the first air inlet pipe 30, the second air inlet pipe 40, the first fire cover 10 and the second fire cover 20 are designed, in order to make the nozzles connectable in an in-line manner with the air inlet pipe, the distance L1 between the first air inlet pipe 30 and the inlet 401 of the second air inlet pipe is consistent with the distance L2 between the first nozzle 154 and the second air inlet pipe 155, and the initial plane a of the first air inlet pipe 30 is required to be the same as the initial plane B of the second air inlet pipe 40, the distance L3 between the outlet 305 of the first air inlet pipe 30 and the outlet 406 of the second air inlet pipe 40 can be increased by adjusting the final plane C of the first air inlet pipe 30 and the final plane D of the second air inlet pipe 40, so that the diameter of the second fire cover 20 can be increased, the heat load of the burner 100 can be increased, the air inlet assembly 150 can be adapted to different burners 100, and the production cost can be further reduced.
A gas cooker according to an embodiment of the invention includes the burner 100 according to any of the embodiments described above.
According to the gas cooker provided by the embodiment of the invention, the initial plane A of the first injection pipe 30 and the initial plane B of the second injection pipe 40 of the burner 100 are the same, so that the distance between two nozzles for supplying gas to the two injection pipes is consistent, the nozzles can be connected with the injection pipes in a direct inserting mode, the termination plane C of the first injection pipe 30 and the termination plane D of the second injection pipe 40 are different, the distance between the outlet 305 of the first injection pipe 30 and the outlet 406 of the second injection pipe 40 can be increased, the requirement of a large-diameter fire cover is met, the large heat load of the burner 100 is ensured, the use of a transition pipe for connecting the nozzles and the injection pipes can be avoided, the cost is saved, and the assembly efficiency of the burner 100 is improved.
In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples" 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 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.
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 at least one feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, unless specifically defined otherwise.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art within the scope of the invention, which is defined by the claims and their equivalents.

Claims (8)

1. The burner is characterized by comprising a first fire cover, a second fire cover, a first injection pipe and a second injection pipe, wherein the second fire cover is arranged around the first fire cover at intervals, the first fire cover forms a first gas chamber, the second fire cover forms a second gas chamber, the first injection pipe is connected to the bottom of the first fire cover and communicated with the first gas chamber, the second injection pipe is connected to the bottom of the second fire cover and communicated with the second gas chamber, the initial plane of the first injection pipe is the same as the initial plane of the second injection pipe, and the termination plane of the first injection pipe is different from the termination plane of the second injection pipe;
The upper surface of the second fire cover forms a wave surface, a plurality of wave crests and a plurality of wave troughs which are alternately arranged at intervals are formed on the wave surface along the circumferential direction of the second fire cover, the second fire cover is provided with second fire holes, and the second fire holes are formed in the wave crests;
The second fire holes are in a strip shape, the second fire holes are distributed along the radial direction of the second fire cover, and a plurality of the second fire holes are distributed radially;
the wave troughs are strip-shaped, the wave troughs are distributed along the radial direction of the second fire cover, and a plurality of wave troughs are distributed radially.
2. The burner of claim 1, wherein the first fire cap has a first fire hole formed in a side wall thereof, the burner comprises a sleeve, the sleeve is disposed over the air outlet end of the first injection tube, and the first fire cap is disposed over the sleeve.
3. The burner of claim 1, wherein the side of the wave surface that is distal to the burner inner side is higher than the side of the wave surface that is proximal to the burner inner side.
4. The burner of claim 1 wherein a flow equalization plate is disposed within the second gas chamber, the flow equalization plate being at least partially opposite the outlet of the second eductor tube.
5. The burner of claim 4, wherein the flow equalization plate is provided with a plurality of air holes arranged at intervals, and at least some of the plurality of air holes are opposite to the outlet of the second ejector tube.
6. The burner of claim 1, wherein the burner comprises a first nozzle mount and a second nozzle mount, the first nozzle mount is disposed at an inlet of the first injection tube, the second nozzle mount is disposed at an inlet of the second injection tube, the first nozzle mount is provided with a first mounting hole, and the second nozzle mount is provided with a second mounting hole.
7. The burner of claim 1, wherein the burner comprises an air intake assembly comprising a valve body, a first air intake pipe, a second air intake pipe, a first nozzle and a second nozzle, the first nozzle being mounted at an air outlet of the first air intake pipe and disposed at an inlet of the first ejector pipe, the second nozzle being mounted at an air outlet of the second air intake pipe and disposed at an inlet of the second ejector pipe, the valve body connecting the first air intake pipe and the second air intake pipe.
8. A gas hob, characterized in, that it comprises a burner according to any one of the claims 1-7.
CN201810228732.4A 2018-03-20 2018-03-20 Burner and gas cooker Active CN108361703B (en)

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CN110274232A (en) * 2019-06-26 2019-09-24 广东万家乐厨房科技有限公司 A kind of cooker burner and gas cooker

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CN203323130U (en) * 2013-02-22 2013-12-04 吴钰 Array strip-type fire hole combustor and gas stove mounted with array strip-type fire hole combustor
CN203454137U (en) * 2013-07-26 2014-02-26 中山市华创燃具制造有限公司 Stove burner with outer fire cover formed through punching
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CN106969360A (en) * 2017-06-01 2017-07-21 华帝股份有限公司 Multilayer channel distributor and combustor applying same
CN206430102U (en) * 2017-01-06 2017-08-22 程志刚 Very fast burner
CN206669735U (en) * 2017-03-29 2017-11-24 胡道强 A kind of cooker burner of burner and distributor seat one
CN107420897A (en) * 2017-09-27 2017-12-01 广东美的厨房电器制造有限公司 Burner and gas kitchen ranges
CN208108092U (en) * 2018-03-20 2018-11-16 广东美的厨房电器制造有限公司 Burner and gas cooker

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Publication number Priority date Publication date Assignee Title
JP2006181330A (en) * 2004-12-27 2006-07-13 Masuo Maruyama Triangularly-corrugated plate fish grill
CN2771661Y (en) * 2005-04-07 2006-04-12 中山华帝燃具股份有限公司 Upper air-intake energy-saving burner
CN103148486A (en) * 2013-02-22 2013-06-12 吴钰 Combustor with array strip-type fire holes and method for processing array strip-type fire holes
CN203323130U (en) * 2013-02-22 2013-12-04 吴钰 Array strip-type fire hole combustor and gas stove mounted with array strip-type fire hole combustor
CN203454137U (en) * 2013-07-26 2014-02-26 中山市华创燃具制造有限公司 Stove burner with outer fire cover formed through punching
CN104566374A (en) * 2013-10-12 2015-04-29 浙江莫尼厨具有限公司 Adjustable upper intake air combustor
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
CN206430102U (en) * 2017-01-06 2017-08-22 程志刚 Very fast burner
CN206669735U (en) * 2017-03-29 2017-11-24 胡道强 A kind of cooker burner of burner and distributor seat one
CN106969360A (en) * 2017-06-01 2017-07-21 华帝股份有限公司 Multilayer channel distributor and combustor applying same
CN107420897A (en) * 2017-09-27 2017-12-01 广东美的厨房电器制造有限公司 Burner and gas kitchen ranges
CN208108092U (en) * 2018-03-20 2018-11-16 广东美的厨房电器制造有限公司 Burner and gas cooker

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