CN109000244A - Burner - Google Patents
Burner Download PDFInfo
- Publication number
- CN109000244A CN109000244A CN201811027490.9A CN201811027490A CN109000244A CN 109000244 A CN109000244 A CN 109000244A CN 201811027490 A CN201811027490 A CN 201811027490A CN 109000244 A CN109000244 A CN 109000244A
- Authority
- CN
- China
- Prior art keywords
- outer ring
- inner ring
- ejector pipe
- air inlet
- ring
- 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.)
- Granted
Links
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
-
- 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
-
- 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
Abstract
The invention discloses a kind of burners.Burner is formed with inner ring gas mixing chamber and outer ring gas mixing chamber, burner includes bottom cup, bottom cup is including main body substantially in the form of annular discs and is formed in the inner ring ejector pipe and outer ring ejector pipe that are connected on the downside of main body and with inner ring gas mixing chamber and outer ring gas mixing chamber respectively, the axis basic horizontal of outer ring ejector pipe and inner ring ejector pipe and a diameter two sides for being located at main body, outer ring ejector pipe and inner ring ejector pipe extend respectively to diameter opposite direction one end from diameter both ends respectively.In this way, the injection distance of extension inner ring ejector pipe and outer ring ejector pipe largely, improves the performance of burner.
Description
Technical field
The present invention relates to household cooker field, in particular to a kind of burner.
Background technique
The burner of the relevant technologies is likely to form multiple mixed gas chambers to generate multiple flame rings and draw using more
It penetrates pipe and provides mixed gas to different mixed gas chambers respectively.However, the setting of ejector pipe is unreasonable, lead to injection pipe range
Degree is limited.And ejector pipe length limited may cause injection distance not enough, mixed gas undercompounding may cause gaseous mixture
Body generates more carbon monoxide (carbon oxide, CO) in burner combustion, reduces the performance of burner.
Summary of the invention
The present invention provides a kind of burners.
The burner of embodiment of the present invention is formed with inner ring gas mixing chamber and outer ring gas mixing chamber, burner packet
It includes:
Bottom cup, bottom cup include main body substantially in the form of annular discs and be formed in the main body downside and respectively with it is described interior
The inner ring ejector pipe and outer ring ejector pipe that ring gas mixing chamber is connected to the outer ring gas mixing chamber, the outer ring ejector pipe and
The axis basic horizontal of the inner ring ejector pipe and a diameter two sides for being located at the main body, the outer ring ejector pipe and inner ring
Ejector pipe extends respectively to diameter opposite direction one end from the diameter both ends respectively.
In this way, the burner of embodiment of the present invention can dramatically extend inner ring ejector pipe and outer ring ejector pipe
Length promotes the mixed effect of mixed gas to increase injection distance as much as possible, and mixed mixed gas is avoided to burn as far as possible
It is insufficient when burning on device, more carbon monoxide (carbon oxide, CO) is generated, the performance of burner is reduced.
In some embodiments, the axis of the outer ring ejector pipe and the inner ring ejector pipe is basic with the diameter
In parallel.
In some embodiments, the inner ring ejector pipe is formed with inner ring ejector pipe import, and the outer ring injection is tubular
At having outer ring ejector pipe import, the inner ring ejector pipe import and the outer ring ejector pipe import generally within the phase of the diameter
Anti- both ends；
The main body includes substantially rounded breasting face, and the main body is formed with:
Inner ring air inlet duct through the breasting face and with the inner ring ejector pipe inlet communication, the inner ring air inlet duct exist
Inner ring air inlet openings are formed on the breasting face；With
Outer ring air inlet duct through the breasting face and with the outer ring ejector pipe inlet communication, the outer ring air inlet duct exist
Outer ring air inlet openings are formed on the breasting face, the inner ring air inlet openings and the outer ring air inlet openings are located at the breasting
A piece diametric opposite end in face.
In some embodiments, which is characterized in that the inner ring ejector pipe is formed with inner ring ejector pipe import, described outer
Ring ejector pipe is formed with outer ring ejector pipe import, and the inner ring ejector pipe import and the outer ring ejector pipe import are generally within institute
State the opposite end of diameter；
The main body includes substantially rounded breasting face, and the main body is formed with:
Inner ring air inlet duct through the breasting face and with the inner ring ejector pipe inlet communication, the inner ring air inlet duct exist
Inner ring air inlet openings are formed on the breasting face；With
Outer ring air inlet duct through the breasting face and with the outer ring ejector pipe inlet communication, the outer ring air inlet duct exist
Outer ring air inlet openings are formed on the breasting face, the area of the inner ring air inlet openings is less than the face of the outer ring air inlet openings
Product.
In some embodiments, the substantially rounded sector-like of the inner ring air inlet openings and from close to the breasting face
Outer edge and position corresponding with the outer ring ejector pipe import extends the first predetermined arc length counterclockwise；
The substantially rounded sector-like of the outer ring air inlet openings and from the outer edge close to the breasting face and with it is described outer
The corresponding position of ring ejector pipe import extends the second predetermined arc length counterclockwise；
The outer arc edge and inner arc edge and the breasting face of the inner ring air inlet openings and the outer ring air inlet openings are same
The heart；
The radius at the outer arc edge and inner arc edge of the inner ring air inlet openings and the outer ring air inlet openings is essentially identical；
First predetermined arc length and second predetermined arc length are essentially identical；
The inner ring ejector pipe is formed with to be exported with the inner ring ejector pipe of the inner ring ejector pipe inlet communication, the outer ring
Ejector pipe is formed to be exported with the outer ring ejector pipe of the outer ring ejector pipe inlet communication, and the main body is formed with:
Inner ring mixing chamber through the breasting face and with the inner ring ejector pipe outlet, the inner ring mixing chamber
Room is formed with inner ring outlet opening on the breasting face；With
Outer ring mixing chamber through the breasting face and with the outer ring ejector pipe outlet, the outer ring mixing chamber
Room forms outer ring outlet opening on the breasting face, and the outer ring outlet opening protrudes into the inner ring air inlet openings so that described
The area of inner ring air inlet openings is less than the area of the outer ring air inlet openings.
In some embodiments, the inner ring ejector pipe is formed with inner ring ejector pipe import, and the outer ring injection is tubular
At having outer ring ejector pipe import, the inner ring ejector pipe import and the outer ring ejector pipe import generally within the phase of the diameter
Anti- both ends, the inner ring ejector pipe is also formed to be exported with the inner ring ejector pipe of the inner ring ejector pipe inlet communication, the outer ring
Ejector pipe is also formed to be exported with the outer ring ejector pipe of the outer ring ejector pipe inlet communication, and the main body includes substantially rounded
Breasting face, the main body are formed with:
Inner ring mixing chamber through the breasting face and with the inner ring ejector pipe outlet, the inner ring mixing chamber
Room is formed with inner ring outlet opening on the breasting face；With
Outer ring mixing chamber through the breasting face and with the outer ring ejector pipe outlet, the outer ring mixing chamber
Room forms outer ring outlet opening on the breasting face, and the inner ring outlet opening and outer ring outlet opening are located at described hold
A diametric opposite end by face.
In some embodiments, the inner ring ejector pipe is formed with inner ring ejector pipe import, and the outer ring injection is tubular
At having outer ring ejector pipe import, the inner ring ejector pipe import and the outer ring ejector pipe import generally within the phase of the diameter
Anti- both ends, the inner ring ejector pipe is also formed to be exported with the inner ring ejector pipe of the inner ring ejector pipe inlet communication, the outer ring
Ejector pipe is also formed to be exported with the outer ring ejector pipe of the outer ring ejector pipe inlet communication, and the main body includes substantially rounded
Breasting face, the main body are formed with:
Inner ring mixing chamber through the breasting face and with the inner ring ejector pipe outlet, the inner ring mixing chamber
Room is formed with inner ring outlet opening on the breasting face；With
Outer ring mixing chamber through the breasting face and with the outer ring ejector pipe outlet, the outer ring mixing chamber
Room forms outer ring outlet opening on the breasting face, and the area of the inner ring outlet opening is less than outer ring outlet opening
Area.
In some embodiments, the inner ring outlet is open substantially rounded sector-like and from close to the breasting face
Outer edge and position corresponding with the outer ring ejector pipe outlet extends third predetermined arc length clockwise；
The outer ring outlet be open substantially rounded sector-like and from the outer edge close to the breasting face and with it is described outer
Ring ejector pipe exports corresponding position and extends the 4th predetermined arc length clockwise；
The outer arc edge and inner arc edge and the breasting face of the inner ring outlet opening and outer ring outlet opening are same
The heart；
The outer arc edge of the inner ring outlet opening and the semidiameter at inner arc edge are less than the outer of outer ring outlet opening
The semidiameter and/or the third predetermined arc length at arc side edge and inner arc edge are less than the 4th predetermined arc length.
In some embodiments, the substantially rounded sector-like of the inner ring air inlet openings, the inner ring mixing chamber
It is gradually become shallower as in the clockwise direction described in depth, the outer ring ejector pipe and the inner ring mixing chamber are on the breasting face
Orthographic projection interfere；
The substantially rounded sector-like of outer ring air inlet openings, in side clockwise described in the depth of the outer ring mixing chamber
It gradually becomes shallower as upwards, the inner ring ejector pipe is interfered with orthographic projection of the outer ring mixing chamber on the breasting face.
In some embodiments, the burner further includes the distributor of setting on the body, the distributor
It is formed:
Circular inner ring chamber；
It is connected to the inner ring channel of the inner ring chamber and the inner ring mixing chamber, the inner ring channel is to the interior ring cavity
Chamber interior inclination；
Circular outer ring chamber；With
It is connected to the outer ring channel of the outer ring chamber and the outer ring mixing chamber, the outer ring channel is to the outer ring cavity
Outdoor inclination.
In some embodiments, the burner further includes the inner fire cover and outer fire cover with distributor cooperation, institute
It states inner fire cover and the outer fire cover is arranged concentrically, the outer fire cover offers the outer ring fire hole for being connected to the outer ring chamber, described
Inner fire cover offers the inner ring fire hole for being connected to the inner ring chamber, when the combustor level is placed, the inner ring fire hole and institute
It states between the orthographic projection in the horizontal plane of the central axis of outer ring fire hole and the radial direction of the burner into the first angle, described first
Angle is 0 ° -45 °, and the central axis of the inner ring fire hole and the outer ring fire hole and the central axis of the burner are at the second folder
Angle, the angular range of second angle are 45 ° -90 °.
In some embodiments, the outer fire cover includes outer ring inner wall, and the inner fire cover includes inner ring inner wall, described outer
Ring fire hole is arranged on the outer ring inner wall, and the inner ring fire hole is arranged on the inner ring inner wall.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the perspective exploded view of the burner of embodiment of the present invention；
Fig. 2 is the stereoscopic schematic diagram of the burner of embodiment of the present invention；
Fig. 3 is the schematic top plan view of the burner of embodiment of the present invention；
Fig. 4 is the floor map of the bottom cup of embodiment of the present invention；
Fig. 5 is the another floor map of the bottom cup of embodiment of the present invention；
Fig. 6 is diagrammatic cross-section of the burner in Fig. 3 along IV-IV line；
Fig. 7 is the part isometric schematic diagram for the burner that the present invention is implemented；
Fig. 8 is diagrammatic cross-section of the burner in Fig. 3 along line VI -- VI；
Fig. 9 is the another part isometric schematic diagram for the burner that the present invention is implemented.
Figure 10 is the floor map of the distributor of embodiment of the present invention；
Figure 11 is diagrammatic cross-section of the distributor in Figure 11 along XI-XI line；
Figure 12 is the floor map of the inner fire cover of embodiment of the present invention；
Figure 13 is in Figure 12 along the diagrammatic cross-section of XIII-XIII line；
Figure 14 is the floor map of the outer fire cover of embodiment of the present invention；
Figure 15 is in Figure 14 along the diagrammatic cross-section of XV-XV line.
Main element symbol description: burner 100, bottom cup 10, main body 11, inner ring ejector pipe 12, inner ring ejector pipe import
121, inner ring ejector pipe outlet 122, outer ring ejector pipe 13, outer ring ejector pipe import 131, outer ring ejector pipe outlet 132, breasting face
111, inner ring air inlet duct 112, inner ring air inlet openings 1121, the first predetermined arc length 11211, outer ring air inlet duct 113, outer ring INO Intake Open
Mouthful the 1131, second predetermined arc length 11311, inner ring mixing chamber 114, inner ring outlet opening 1141, third predetermined arc length 11411,
Outer ring mixing chamber 115, outer ring outlet be open the 1151, the 4th predetermined arc length 11511, inner ring nozzle carrier 12, outer ring nozzle carrier 13,
Distributor 20, inner ring chamber 21, inner ring channel 22, outer ring chamber 23, outer ring channel 24, inner fire cover 30, inner ring fire hole 31, inner ring
Inner wall 32, outer fire cover 40, outer ring fire hole 41, outer ring inner wall 42, inner ring gas mixing chamber 50, outer ring gas mixing chamber 60.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " line direction ", " column direction ", "center", " longitudinal direction ", " cross
To ", " length ", " width ", " thickness ", " edge ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " is side based on the figure
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second ", which are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or imply, refers to
The quantity of bright indicated technical characteristic." first " is defined as a result, the feature of " second " can explicitly or implicitly include
One or more feature.In the description of the present invention, " multiple ", " more " are meant that exponential quantity two or two
More than, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected.It can
To be mechanical connection, it is also possible to be electrically connected.It can be directly connected, can also can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside two elements.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Also referring to Fig. 1 to Fig. 3, the burner 100 of embodiments of the present invention can be used for cooking stove, such as
In household gas range (not shown).In use, burner 100 can be horizontally arranged, it is mounted on gas-cooker, and and gas source
Connection makes combustion gas burn by burner 100, is cooked.
Referring to Figure 4 together to Fig. 9, the burner 100 of embodiment of the present invention is formed with 50 He of inner ring gas mixing chamber
Outer ring gas mixing chamber 60 can form interior ring flame and outer ring flame when burner 100 works.Burner 100 includes bottom
Cup 10, bottom cup 10 includes main body 11, inner ring ejector pipe 12 and outer ring ejector pipe 13, and main body 11 is substantially in the form of annular discs, inner ring injection
Pipe 12 and outer ring ejector pipe 13 be formed in the downside of main body 11 and respectively with inner ring gas mixing chamber 50 and outer ring gas mixing chamber 60
Connection.The axis basic horizontal of inner ring ejector pipe 12 and outer ring ejector pipe 13 and the two sides diameter CL1 for being located at main body 11, it is interior
Ring ejector pipe 12 and outer ring ejector pipe 13 extend respectively to one end of diameter CL1 opposite direction from the both ends of diameter CL1 respectively.
In this way, the burner 100 of embodiment of the present invention can dramatically extend inner ring ejector pipe 12 and outer ring draws
The length of pipe 13 is penetrated, to increase injection distance, promotes the mixed effect of mixed gas as much as possible, avoids mixed gaseous mixture as far as possible
Body is insufficient when burning on burner 100, generates more carbon monoxide (carbon oxide, CO), reduces burner
Performance.
In addition, inner ring ejector pipe 12, which is arranged such, is formed with inner ring ejector pipe import 121, outer ring ejector pipe 13 is formed with outer
The diameter side CL1 of ring ejector pipe import 131, inner ring ejector pipe import 121 and outer ring ejector pipe import 131 generally within main body 11
To opposite end.
In this way, inner ring ejector pipe import 121 and outer ring ejector pipe import 13 can be dramatically spaced apart, it is possible to reduce
Mutual negative pressure interference, inner ring ejector pipe import 121 and outer ring ejector pipe import 131 can obtain sufficient primary sky
Gas, so that burning is more stable.
It is understood that inner ring gas mixing chamber 50 is interior ring flame gas supply, outer ring gas when burner 100 works
Body mixing chamber 60 is outer ring flame gas supply, and inner ring ejector pipe 12 is the gas supply of inner ring gas mixing chamber 50, and outer ring ejector pipe 13 is outer
Ring gas mixing chamber 60 supplies.In embodiments of the present invention, bottom cup 10 can be using metal materials systems such as cast iron, aluminium and copper
At can be integrally formed using mold or be formed using mach mode.
In some embodiments, the axis of inner ring ejector pipe 12 and outer ring ejector pipe 13 is substantially parallel with diameter CL1.
In this way, can inner ring ejector pipe import 121 and outer ring ejector pipe import 131 as far as possible relatively far apart in the case where
The increase inner ring ejector pipe 12 of high degree and the injection distance of outer ring ejector pipe 13 improve injection performance.
In some embodiments, main body 11 includes breasting face 111, and breasting face 111 is substantially rounded, and main body 11 is born against certainly
Face 111 has been formed down inner ring air inlet duct 112 and outer ring air inlet duct 113 along 11 short transverse of main body.Inner ring air inlet duct 112 runs through
Breasting face 111 and be connected to inner ring ejector pipe import 121, outer ring air inlet duct 113 through breasting face 111 and with outer ring ejector pipe into
Mouth 131 is connected to.Inner ring air inlet duct 112 is formed with inner ring air inlet openings 1121 on breasting face 111, and outer ring air inlet duct 113 is being held
Outer ring air inlet openings 1131 are formed on face 111, inner ring air inlet openings 1121 and outer ring air inlet openings 1131 are located at breasting face
The opposite end of a 111 diameter CL1.
In this way, inner ring air inlet duct 112 can provide primary air for inner ring flame, outer ring air inlet duct 113 can be outer ring
Flame provides primary air.Meanwhile inner ring air inlet duct 112 and outer ring air inlet duct 113 being spaced apart with high degree, can be with
The negative pressure interference for reducing primary air between the two, ensure that into the primary sky in inner ring ejector pipe 12 and outer ring ejector pipe 13
The amount of gas keeps burning more stable.
It should be noted that in the present embodiment, a diameter in breasting face 111 is a diameter for being main body 11
CL1, in other words, the diameter in breasting face 111 are the diameter of main body 11, when occurring similar situation in the following embodiments,
It is referred to understand herein.In Fig. 6 into example shown in Fig. 9, inner ring air inlet duct 112 is located at 121 institute of inner ring ejector pipe import
One end, outer ring air inlet duct 113 is located at one end where outer ring ejector pipe import 131.
In some embodiments, the area of inner ring air inlet openings 1121 is less than the area of outer ring air inlet openings 1131.
Specifically, under normal circumstances, the combustion power of the interior ring flame of burner 100 is lower, and required combustion gas is less,
Required primary air is also less, and outer ring flame is as the main flame heated to cooker, and required combustion gas is more, power
Higher, required primary air is also more.It therefore, can be by being arranged the area of inner ring air inlet openings 1121 to compare outer ring
The area of air inlet openings 1131 is small to reach this purpose.Its specific size can be according to needed for interior ring flame and outer ring flame
Combustion power to be achieved is adjusted, and can be set according to actual needs.
In some embodiments, inner ring ejector pipe 12 is also formed with the inner ring being connected to inner ring ejector pipe import 121 and draws
Pipe outlet 122 is penetrated, outer ring ejector pipe 13 is also formed with the outer ring ejector pipe outlet 132 being connected to outer ring ejector pipe import 131.It is main
Body 11 is also formed with inner ring mixing chamber 114 and outer ring mixing chamber 115, inner ring along 11 short transverse of main body from breasting face 111
122 connection inner ring mixing chamber 114 of ejector pipe outlet, 132 connection outer ring mixing chamber 115 of outer ring ejector pipe outlet.Inner ring is mixed
It closes chamber 114 and outer ring mixing chamber 115 and runs through breasting face 111, form inner ring outlet opening on bearing against face 111 respectively
1141 and outer ring outlet opening 1151, inner ring outlet opening 1141 and outer ring outlet opening 1151 be located at one of breasting face 111
The opposite end (as shown in Figure 4) of diameter CL1.
Specifically, in Fig. 6 into example shown in Fig. 9, inner ring ejector pipe outlet 122 is located at outer ring ejector pipe import 131
The one end at place, outer ring ejector pipe outlet 132 are located at one end where inner ring ejector pipe import 121.
In this way, can improve and draw with the increase inner ring ejector pipe 12 of high degree and the injection distance of outer ring ejector pipe 13
Performance is penetrated, combustion gas and air are more fully mixed.
It is understood that in Fig. 6 into example shown in Fig. 9, inner ring mixing chamber 114 and outer ring air inlet duct 113
At one end in the institute of outer ring ejector pipe import 131, the two mutual dislocation and be not connected to, outer ring mixing chamber 115 and with inner ring air inlet
Slot 112 is located at one end where inner ring ejector pipe import 121.It the two mutual dislocation and is not connected to.
In this way, inner ring ejector pipe 12 is connected to inner ring air inlet duct 112 and inner ring mixing chamber 114, from inner ring air inlet duct 112 into
Enter inner ring ejector pipe 12 primary air can with combustion gas inner ring ejector pipe 12 carry out tentatively mixing after can be in inner ring mixing chamber
In room 114 further adequately mixing, enable its when burn it is more abundant, prevent burn when generate it is more
CO.Meanwhile outer ring ejector pipe 13 is connected to outer ring air inlet duct 113 and outer ring mixing chamber 115, enters from outer ring air inlet duct 113 outer
The primary air of ring ejector pipe 13 can with combustion gas outer ring ejector pipe 13 carry out tentatively mixing after can be in outer ring mixing chamber 115
Outer further adequately mixing, enable its when burn it is more abundant, prevent from generating more CO when burning.
Referring to Fig. 4, in some embodiments, the substantially rounded sector-like of inner ring air inlet openings 1121 and from close to holding
By face 111 outer edge and position corresponding with the import 121 of inner ring ejector pipe extend the first predetermined arc length 11211 counterclockwise, outside
The substantially rounded sector-like of ring air inlet openings 1131 and from close to breasting face 111 outer edge and with outer ring ejector pipe import 131
Corresponding position extends the second predetermined arc length 11311 counterclockwise.Inner ring air inlet openings 1121 and outer ring air inlet openings 1131 it is outer
Arc side edge and inner arc edge and breasting face 111 are concentric, the outer arc edge of inner ring air inlet openings 1121 and outer ring air inlet openings 1131
Essentially identical with the radius at inner arc edge, the first predetermined arc length 11211 and the second predetermined arc length 11311 are essentially identical.Further
Ground, in the example depicted in fig. 4, in order to realize that the area of inner ring air inlet openings 1121 is less than the face of outer ring air inlet openings 1131
Product, can by outer ring outlet be open 1151 protrude into inner ring air inlet openings 1121 with reduce the area of inner ring air inlet openings 1121 to
So that inner ring air inlet openings 1121 are less than outer ring air inlet openings 1131.
Referring to Fig. 4, in some embodiments, the area of inner ring outlet opening 1141 is open less than outer ring outlet
1151 area.
Generally, in the use process of burner 100, the power of interior ring flame is lower, and flame range is smaller, if into
Gas may result in too much burning it is insufficient, it is low so as to cause the thermal efficiency.Therefore, the area of inner ring outlet opening 1141 is set
It sets smaller than the area of outer ring outlet opening 1151 to prevent excessive into the mixed gas of inner ring and cause to burn insufficient.
In addition, in some embodiments, inner ring outlet 1141 substantially rounded sector-likes of opening and certainly close breasting face
111 outer edge and with inner ring ejector pipe export 122 corresponding positions extend third predetermined arc length 11411 clockwise.Outer ring goes out
Gas is open 1151 substantially rounded sector-likes and from the outer edge close to breasting face 111 and 132 corresponding with the outlet of outer ring ejector pipe
Position extend the 4th predetermined arc length 11511 clockwise.The outer arc side of inner ring outlet opening 1141 and outer ring outlet opening 1151
Edge and inner arc edge and breasting face 111 are concentric.In the example depicted in fig. 4, in order to make inner ring outlet opening 1141 area it is small
In outer ring outlet opening 1151 area, can by by inner ring outlet opening 1141 outer arc edge and inner arc edge radius
Difference be arranged to be open than outer ring outlet 1151 outer arc edge and inner arc edge semidiameter it is small and/or by third predetermined arc length
11411 length is set smaller than the length of the 4th predetermined arc length 11511.
Fig. 4, Fig. 7 and Fig. 9 are please referred to, in some embodiments, the depth of inner ring mixing chamber 114 is in side clockwise
It gradually becomes shallower as upwards, outer ring ejector pipe 13 is interfered with orthographic projection of the inner ring mixing chamber 114 on breasting face 111.Outer ring
The depth of mixing chamber 115 gradually becomes shallower as in the clockwise direction, and inner ring ejector pipe 12 and outer ring mixing chamber 115 are in the face of breasting
Orthographic projection on 111 interferes.
In this way, can effectively utilize inner ring ejector pipe 12 and outer ring ejector pipe 13 under the premise of guaranteeing bottom 10 height of cup
The space of top makes combustion gas and air so that the space of inner ring mixing chamber 114 and outer ring mixing chamber 115 is big as far as possible
It can mix more abundant.Meanwhile the whole height of burner 100 is advantageously reduced, burner 100 can be made more small-sized
Change.
In some embodiments, bottom cup 10 further include have connection inner ring air inlet duct 112 inner ring nozzle carrier 14 be connected to
The outer ring nozzle carrier 15 of outer ring air inlet duct 113.Inner ring nozzle carrier 14 and outer ring nozzle carrier 15 are in through-hole tubulose.Inner ring nozzle carrier
14 for installing inner ring nozzle (not shown go out), and outer ring nozzle carrier 15 is for installing outer ring nozzle (not shown go out).
Inner ring nozzle carrier 14 is corresponding with inner ring ejector pipe 12, and outer ring nozzle carrier 15 is corresponding with outer ring ejector pipe 13.Combustion
Gas sprays into inner ring ejector pipe 12 by the inner ring nozzle being mounted on inner ring nozzle carrier 14, and the air velocity of combustion gas is larger, is firing
Gas blowout will form negative pressure when entering inner ring ejector pipe 12, at this point, extraneous air can be inhaled into inner ring air inlet duct 112 and by interior
Ring ejector pipe import 121 is tentatively mixed into inner ring ejector pipe 12 with combustion gas, then into one in inner ring mixing chamber 114
Step mixing.Similarly, combustion gas sprays into outer ring ejector pipe 13, the gas of combustion gas by the outer ring nozzle being mounted on outer ring nozzle carrier 15
Flow velocity degree is larger, will form negative pressure when combustion gas sprays into outer ring ejector pipe 13, at this point, extraneous air can be inhaled into outer ring air inlet
It slot 113 and is tentatively mixed with combustion gas by outer ring ejector pipe import 131 into outer ring ejector pipe 13, is then mixed in outer ring
It closes and is further mixed in chamber 115.
It is appreciated that in the present embodiment, both inner ring nozzle carrier 14 and outer ring nozzle carrier 15 can be with main bodys 11 1
It is body formed, it seperated can also form, be connected by modes such as welding.
Also referring to Figure 10 and Figure 11, in some embodiments, burner 100 further includes distributor 20, distributor
20 are arranged in the main body 11 of bottom cup 10, and distributor 20 is formed with inner ring chamber 21, inner ring channel 22, outer ring chamber 23 and outer ring
Channel 24.Inner ring chamber 21 and outer ring chamber 23 are annular in shape, and inner ring channel 22 is connected to interior on inner ring chamber 21 and bottom cup 10
Ring mixing chamber 114, outer ring channel 24 are connected to the outer ring mixing chamber 115 on outer ring chamber 23 and bottom cup 10.Inner ring channel 22
The inner inclination of inside ring cavity room 21, the outer inclination of the outside ring cavity room 23 of outer ring channel 24.
In this way, the length of inner ring channel 22 can be grown as far as possible in the case where guaranteeing 20 height of distributor.In this way,
Combustion gas and primary air can be made to mix more sufficiently and to prevent that air pressure is excessive and air pressure is caused to impact, improved
The performance of burner.It meanwhile when manufacturing distributor 20, can be easily manufactured, be improved by upper and lower releasing process
Manufacture efficiency and yield, reduce manufacturing cost.
It is understood that the inner ring chamber 21 of distributor 20 is connected to the inner ring mixing on bottom cup 10 by inner ring channel 22
To form the inner ring gas mixing chamber 50 of burner 100, the outer ring chamber 23 of distributor 20 is connected chamber 114 by outer ring channel 24
Outer ring mixing chamber 115 on logical bottom cup 10 is to form the outer ring gas mixing chamber 60 of burner 100.
Incorporated by reference to Figure 12 to Figure 15, in some embodiments, burner 100 further includes the endogenous fire cooperated with distributor 20
Lid 30 and outer fire cover 40, inner fire cover 30 and outer fire cover 40 are arranged concentrically, and outer fire cover 40 offers the outer ring of connection outer ring chamber 23
Fire hole 41, inner fire cover 30 offer the inner ring fire hole 31 of connection inner ring chamber 21, when burner 100 is horizontally arranged, inner ring fire hole
31 and outer ring fire hole 41 central axis orthographic projection in the horizontal plane and burner 100 radial direction between at the first angle α, first
Angle α is 0 ° -45 °, and the central axis of the central axis of inner ring fire hole 31 and outer ring fire hole 41 and burner 100 is at the second angle β, the
The angular range of two angle β is 45 ° -90 °.
In this way, mixed gas can be sprayed from inner ring fire hole 31 and outer ring fire hole 41, formed after being ignited in ring flame and
Outer ring flame.The presence of first angle α and the second angle β can form the swirl flame inwardly assembled, and improve heating efficiency.
In addition, be unfavorable for the convergence of flame when the first angle α is excessive, when the second angle β is too small, fire hole with 100 axis of burner
To angle too small, in use, extraneous residue and dirt are easily accessible fire hole to block fire hole.Therefore, by first
Angle α be arranged in 0 ° -45 ° and the second angle β be arranged in 45 ° -90 ° can make the flame of burner 100 more converge and
It is not easy to block fire hole.
Specifically, inner ring fire hole 31 is connected to inner ring chamber 21, and the mixed gas in inner ring gas mixing chamber 50 can be from
Inner ring fire hole 31 is to spraying to form interior ring flame, and outer ring fire hole 41 is connected to outer ring chamber 23, in outer ring gas mixing chamber 60
Mixed gas can from outer ring fire hole 41 to spray to form outer ring flame,
It is understood that inner ring fire hole 31 and outer ring fire hole 41 are basic centripetal counterclockwise in Figure 12 and Figure 14 example
Rotary setting.In other implementations, inner ring fire hole 31 and outer ring fire hole 41 can also centripetal rotary setting clockwise, tool
Body is with no restriction.
Moreover, it is to be understood that the first folder that inner ring fire hole 31 and outer ring fire hole 41 and burner 100 are formed radially
Angle α and the second angle β formed with the central axis of burner 100 can be identical or not identical, need to only be located at above-mentioned specified
In the range of.
It should be noted that inner fire cover 30 and the inner ring chamber 21 of distributor 20 cooperate, inner fire cover 30 defines burner 100
Inner ring gas mixing chamber 50, the outer ring chamber 23 of outer fire cover 40 and distributor 20 cooperates, and outer fire cover 40 defines burner 100
Outer ring gas mixing chamber 60.
In some embodiments, outer fire cover 40 includes outer ring inner wall 42, and inner fire cover 30 includes inner ring inner wall 32, outer ring fire
Hole 41 is arranged on outer ring inner wall 42, and inner ring fire hole 31 is arranged on inner ring inner wall 32.
In this way, inner ring fire hole 31 is towards the inside of inner fire cover 30, outer ring fire hole 41 is towards the inside of outer fire cover 40.In this way,
Burner 100 can form cohesion flame, it is possible to reduce heat further improves the thermal efficiency toward external diffusion.
Referring to Fig. 6 to Fig. 9, when the burner 100 of embodiment of the present invention works, inner ring nozzle draws toward inner ring
It penetrates pipe 12 and sprays combustion gas, the air velocity of combustion gas is larger, forms negative pressure in inner ring ejector pipe 12, and extraneous primary air is inhaled
Enter inner ring air inlet duct 112 and inner ring ejector pipe 12 (dotted arrow indicates inner ring primary air airintake direction in Fig. 6 and Fig. 7).So
Afterwards, primary air and combustion gas enter in inner ring mixing chamber 114 after inner ring ejector pipe 12 tentatively mixing further mixes, then
The inner ring channel 22 for entering distributor 20 by inner ring outlet opening 1141, then imports inner ring chamber by inner ring channel 22
21, most spray afterwards through inner ring fire hole 31 to form interior ring flame.In addition, outer ring nozzle sprays combustion gas, combustion toward outer ring ejector pipe 13
The air velocity of gas is larger, forms negative pressure in outer ring ejector pipe 13, and extraneous primary air is sucked 113 He of outer ring air inlet duct
Outer ring ejector pipe 13 (dotted arrow indicates outer ring primary air airintake direction in Fig. 8 and Fig. 9).Then, primary air and combustion gas
Enter in outer ring mixing chamber 115 after outer ring ejector pipe 13 tentatively mixing and further mix, is then open by outer ring outlet
1151 enter the outer ring channel 24 of distributor 20, then outer ring chamber 23 are imported by outer ring channel 24, most afterwards through outer ring fire hole
41 spray to form outer ring flame.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means embodiment or example is combined to describe specific
Feature, structure, material or feature are contained at least one embodiment or example of the invention.In the present specification, right
The schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (12)
1. a kind of burner, which is characterized in that the burner is formed with inner ring gas mixing chamber and outer ring gas mixing chamber, institute
Stating burner includes:
Bottom cup, bottom cup include main body substantially in the form of annular discs and be formed in the main body downside and respectively with the inner ring gas
The inner ring ejector pipe and outer ring ejector pipe that body mixing chamber is connected to the outer ring gas mixing chamber, the outer ring ejector pipe and described
The axis basic horizontal of inner ring ejector pipe and a diameter two sides for being located at the main body, the outer ring ejector pipe and inner ring injection
Pipe extends respectively to diameter opposite direction one end from the diameter both ends respectively.
2. burner as described in claim 1, which is characterized in that the axis of the outer ring ejector pipe and the inner ring ejector pipe
It is substantially parallel with the diameter.
3. burner as described in claim 1, which is characterized in that the inner ring ejector pipe is formed with inner ring ejector pipe import,
The outer ring ejector pipe is formed with outer ring ejector pipe import, and the inner ring ejector pipe import and the outer ring ejector pipe import are basic
Positioned at the opposite end of the diameter；
The main body includes substantially rounded breasting face, and the main body is formed with:
Inner ring air inlet duct through the breasting face and with the inner ring ejector pipe inlet communication, the inner ring air inlet duct is described
Inner ring air inlet openings are formed on breasting face；With
Outer ring air inlet duct through the breasting face and with the outer ring ejector pipe inlet communication, the outer ring air inlet duct is described
Outer ring air inlet openings are formed on breasting face, the inner ring air inlet openings and the outer ring air inlet openings are located at the breasting face
A piece diametric opposite end.
4. burner as described in claim 1, which is characterized in that the inner ring ejector pipe is formed with inner ring ejector pipe import,
The outer ring ejector pipe is formed with outer ring ejector pipe import, and the inner ring ejector pipe import and the outer ring ejector pipe import are basic
Positioned at the opposite end of the diameter；
The main body includes substantially rounded breasting face, and the main body is formed with:
Inner ring air inlet duct through the breasting face and with the inner ring ejector pipe inlet communication, the inner ring air inlet duct is described
Inner ring air inlet openings are formed on breasting face；With
Outer ring air inlet duct through the breasting face and with the outer ring ejector pipe inlet communication, the outer ring air inlet duct is described
Outer ring air inlet openings are formed on breasting face, the area of the inner ring air inlet openings is less than the area of the outer ring air inlet openings.
5. burner as claimed in claim 4, which is characterized in that the substantially rounded sector-like of the inner ring air inlet openings and from
Close to the breasting face outer edge and position corresponding with the outer ring ejector pipe import extend the first predetermined arc length counterclockwise；
The substantially rounded sector-like of the outer ring air inlet openings and draw from the outer edge close to the breasting face and with the outer ring
It penetrates the corresponding position of pipe import and extends the second predetermined arc length counterclockwise；
The outer arc edge and inner arc edge and the breasting face of the inner ring air inlet openings and the outer ring air inlet openings are concentric；
The radius at the outer arc edge and inner arc edge of the inner ring air inlet openings and the outer ring air inlet openings is essentially identical；It is described
First predetermined arc length and second predetermined arc length are essentially identical；
The inner ring ejector pipe is formed with to be exported with the inner ring ejector pipe of the inner ring ejector pipe inlet communication, the outer ring injection
Pipe is formed to be exported with the outer ring ejector pipe of the outer ring ejector pipe inlet communication, and the main body is formed with:
Inner ring mixing chamber through the breasting face and with the inner ring ejector pipe outlet, the inner ring mixing chamber exist
Inner ring outlet opening is formed on the breasting face；With
Outer ring mixing chamber through the breasting face and with the outer ring ejector pipe outlet, the outer ring mixing chamber exist
Outer ring outlet opening is formed on the breasting face, the outer ring outlet opening protrudes into the inner ring air inlet openings so that the inner ring
The area of air inlet openings is less than the area of the outer ring air inlet openings.
6. burner as described in claim 1, which is characterized in that the inner ring ejector pipe is formed with inner ring ejector pipe import,
The outer ring ejector pipe is formed with outer ring ejector pipe import, and the inner ring ejector pipe import and the outer ring ejector pipe import are basic
Positioned at the opposite end of the diameter, the inner ring ejector pipe is also formed and the inner ring injection of the inner ring ejector pipe inlet communication
Pipe outlet, the outer ring ejector pipe is also formed to be exported with the outer ring ejector pipe of the outer ring ejector pipe inlet communication, the main body
Including substantially rounded breasting face, the main body is formed with:
Inner ring mixing chamber through the breasting face and with the inner ring ejector pipe outlet, the inner ring mixing chamber exist
Inner ring outlet opening is formed on the breasting face；With
Outer ring mixing chamber through the breasting face and with the outer ring ejector pipe outlet, the outer ring mixing chamber exist
Outer ring outlet opening is formed on the breasting face, the inner ring outlet opening and outer ring outlet opening are located at the breasting face
A diametric opposite end.
7. burner as described in claim 1, which is characterized in that the inner ring ejector pipe is formed with inner ring ejector pipe import,
The outer ring ejector pipe is formed with outer ring ejector pipe import, and the inner ring ejector pipe import and the outer ring ejector pipe import are basic
Positioned at the opposite end of the diameter, the inner ring ejector pipe is also formed and the inner ring injection of the inner ring ejector pipe inlet communication
Pipe outlet, the outer ring ejector pipe is also formed to be exported with the outer ring ejector pipe of the outer ring ejector pipe inlet communication, the main body
Including substantially rounded breasting face, the main body is formed with:
Inner ring mixing chamber through the breasting face and with the inner ring ejector pipe outlet, the inner ring mixing chamber exist
Inner ring outlet opening is formed on the breasting face；With
Outer ring mixing chamber through the breasting face and with the outer ring ejector pipe outlet, the outer ring mixing chamber exist
Outer ring outlet opening is formed on the breasting face, the area of the inner ring outlet opening is less than the face of outer ring outlet opening
Product.
8. burner as claimed in claim 7, which is characterized in that the inner ring outlet be open substantially rounded sector-like and from
Close to the breasting face outer edge and position corresponding with the outer ring ejector pipe outlet extend third predetermined arc length clockwise；
The outer ring outlet, which is open, substantially rounded sector-like and to be drawn from the outer edge close to the breasting face and with the outer ring
It penetrates the corresponding position in pipe outlet and extends the 4th predetermined arc length clockwise；
The outer arc edge and inner arc edge and the breasting face of the inner ring outlet opening and outer ring outlet opening are concentric；
The outer arc edge of the inner ring outlet opening and the semidiameter at inner arc edge are less than the outer arc side of outer ring outlet opening
The semidiameter and/or the third predetermined arc length at edge and inner arc edge are less than the 4th predetermined arc length.
9. burner as claimed in claims 6 or 7, which is characterized in that the substantially rounded sector-like of inner ring air inlet openings,
It is gradually become shallower as in the clockwise direction described in the depth of the inner ring mixing chamber, the outer ring ejector pipe is mixed with the inner ring
Orthographic projection of the chamber on the breasting face interferes；
The substantially rounded sector-like of outer ring air inlet openings, described in the depth of the outer ring mixing chamber in the clockwise direction
It gradually becomes shallower as, the inner ring ejector pipe is interfered with orthographic projection of the outer ring mixing chamber on the breasting face.
10. burner as claimed in claims 6 or 7, which is characterized in that the burner further includes being arranged on the body
Distributor, the distributor formed:
Circular inner ring chamber；
It is connected to the inner ring channel of the inner ring chamber and the inner ring mixing chamber, the inner ring channel is to the interior ring chamber
Portion's inclination；
Circular outer ring chamber；With
It is connected to the outer ring channel of the outer ring chamber and the outer ring mixing chamber, the outer ring channel is to outside the outer ring chamber
Portion's inclination.
11. burner as claimed in claim 10, which is characterized in that the burner further includes cooperating with the distributor
Inner fire cover and outer fire cover, the inner fire cover and the outer fire cover are arranged concentrically, and the outer fire cover offers the connection outer ring cavity
The outer ring fire hole of room, the inner fire cover offers the inner ring fire hole for being connected to the inner ring chamber, when the combustor level is placed,
Between the orthographic projection in the horizontal plane of the central axis of the inner ring fire hole and the outer ring fire hole and the radial direction of the burner at
First angle, first angle are 0 ° -45 °, the central axis and the burner of the inner ring fire hole and the outer ring fire hole
Central axis at the second angle, the angular range of second angle is 45 ° -90 °.
12. burner as claimed in claim 11, which is characterized in that the outer fire cover includes outer ring inner wall, the inner fire cover
Including inner ring inner wall, the outer ring fire hole is arranged on the outer ring inner wall, and the inner ring fire hole is arranged in the inner ring inner wall
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027490.9A CN109000244B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027490.9A CN109000244B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109000244A true CN109000244A (en) | 2018-12-14 |
| CN109000244B CN109000244B (en) | 2023-09-26 |
Family
ID=64591000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811027490.9A Active CN109000244B (en) | 2018-09-04 | 2018-09-04 | Burner with a burner body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109000244B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020047937A1 (en) * | 2018-09-04 | 2020-03-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Burner and cooker |
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| WO2008122165A1 (en) * | 2007-04-10 | 2008-10-16 | Ningbo Fotile Kitchen Ware Co., Ltd | Multi-jet gas burner |
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| CN204987010U (en) * | 2015-03-13 | 2016-01-20 | 广东美的厨房电器制造有限公司 | Combustor |
| CN105299644A (en) * | 2015-07-30 | 2016-02-03 | 嵊州市普利斯精锻有限公司 | Two-ring fire burner and energy efficiency promotion method thereof |
| CN107883752A (en) * | 2017-11-08 | 2018-04-06 | 江门市宪诚环保节能设备有限公司 | Baking box waste gas afterheat recovery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008122165A1 (en) * | 2007-04-10 | 2008-10-16 | Ningbo Fotile Kitchen Ware Co., Ltd | Multi-jet gas burner |
| CN101446415A (en) * | 2008-12-23 | 2009-06-03 | 刘一飞 | Embedded burner of household gas cooker with multiple nozzles, high flow rate and full upward air intake |
| CN104713089A (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 |
| CN204987010U (en) * | 2015-03-13 | 2016-01-20 | 广东美的厨房电器制造有限公司 | Combustor |
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| WO2020047937A1 (en) * | 2018-09-04 | 2020-03-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Burner and cooker |
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| Publication number | Publication date |
|---|---|
| CN109000244B (en) | 2023-09-26 |
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