CN104776433B

CN104776433B - Combustor

Info

Publication number: CN104776433B
Application number: CN201510111488.XA
Authority: CN
Inventors: 王成; 王光武; 朱世平; 施国生
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2015-03-13
Filing date: 2015-03-13
Publication date: 2017-05-03
Anticipated expiration: 2035-03-13
Also published as: CN104776433A

Abstract

The invention discloses a combustor, comprising a bottom cup, an annular flame distributor and a burner cap. The bottom cup comprises an air inlet channel, and two nozzles which are communicated with the air inlet channel and are arranged upwards. The flame distributor is arranged on the bottom cup; the flame distributor comprises two Venturi tubes which are arranged in a manner of respectively corresponding to the two nozzles; the flame distributor and the bottom cup are arranged at intervals, so that a gap is formed, primary air is allowed to enter into the two Venturi tubes through the gap, and the primary air and fuel gas sprayed by the two nozzles into the two Venturi tubes are mixed into fixed gas; the flame distributor is provided with annular mixing chambers which are communicated with the Venturi tubes; the top part of the flame distributor is provided with notches which are communicated with the mixing chamber. The burner cap is arranged on the flame distributor; the burner cap covers the mixing chamber, and limits the notches so as to limit the outlet of the mixed gas, so that flame rings are formed. Thus, the phenomenon of mutual interference of the flame rings can be prevented; in addition, the cost can be further reduced.

Description

Burner

Technical field

The present invention relates to gas-cooker technology, more particularly to a kind of burner for gas-cooker.

Background technology

Existing burner is provided with multiple flame rings, is interconnected between the corresponding mixing chamber of multiple flame rings, fires Gas-air gas mixture can mutually circulate between mixing chamber, therefore easily interfere between multiple flame rings.Separately Outward, burner also needs to arrange multiple Venturi tubes and supplies mixed gas to the corresponding mixing chamber of multiple flame rings respectively, and literary The manufacturing process of venturi is complicated, and causing the cost of burner increases.

The content of the invention

It is contemplated that at least solving one of technical problem present in prior art.For this purpose, the present invention needs offer one Plant burner.

Included according to the burner of better embodiment of the present invention：

Bottom cup, the bottom cup includes inlet channel and two nozzles for connecting with the inlet channel and setting up；

The ring-type distributor being arranged on the bottom cup, the distributor is relative with described two nozzles respectively including two The Venturi tube of setting, the distributor allows primary air from the seam with the bottom cup interval setting to form gap Gap enters described two Venturi tubes and sprays into the combustion gas mixing formation gaseous mixture of described two Venturi tubes with described two nozzles Body, the distributor is formed with the ring-type mixing chamber connected with the Venturi tube, and the distributor top is formed with and institute State the notch of mixing chamber's connection；And

The fire cover being arranged in the distributor, the fire cover covers the mixing chamber and limits the notch to limit The outlet of the mixed gas is so as to forming flame rings.

The burner of better embodiment of the present invention does not exist only with the mixing chamber and the corresponding flame rings Connect with other mixing chamber so that the phenomenon that interferes of the flame rings and other flame rings, furthermore it is also possible to subtract Venturi tube of the mixed gas to other mixing chamber is supplied less, so as to reduces cost.

In some embodiments, the inlet channel is linear, and the distributor is in annular shape, the inlet channel Axis through the distributor central shaft, described two nozzles are respectively arranged at the two of the central shaft of the distributor Side.

In some embodiments, the inlet channel is in Y types and including two end points substantially, and the distributor is in annulus Shape, through the central shaft of the distributor, described two nozzles are respectively arranged at described two ends for the line of described two end points Point on.

In some embodiments, the inlet channel also includes the interface channel of the described two end points of connection.

In some embodiments, described two nozzles and described two Venturi tubes are vertically arranged.

In some embodiments, the bottom is cup-shaped into two cup portion, and described two nozzles are formed in the cup portion, institute Distributor is stated including two shirt rims, described two shirt rims are corresponding with the top of described two cup portion and align, the bottom cup Or the distributor includes distance piece, for being spaced apart the top of described two shirt rims and described two cup portion.

In some embodiments, top of the size of the shirt rim more than the bottom cup.

In some embodiments, the Venturi tube stretches into the cup portion.

In some embodiments, the distributor includes two partition-type structures being arranged in the mixing chamber, uses In the mixing chamber is divided into into two independent sub-chamber, described two Venturi tubes connect respectively with described two sub-chamber It is logical.

In some embodiments, the inlet channel includes two independent subchannels, and described two nozzles set respectively Put on described two subchannels.

The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description Obtain substantially, or recognized by the practice of the present invention.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment Substantially with it is easy to understand, wherein：

Fig. 1 is the schematic perspective view of the burner according to better embodiment of the present invention.

Fig. 2 is the generalized section of the burner of Fig. 1.

Fig. 3 is the schematic perspective view of the bottom cup of the burner of Fig. 1.

Fig. 4 is the schematic perspective view of the inlet channel of the bottom cup of another embodiment of the invention.

Fig. 5 is the schematic perspective view of the distributor of the burner of Fig. 1.

Fig. 6 is the schematic perspective view at another visual angle of the distributor of the burner of Fig. 1.

Fig. 7 is the schematic perspective view of the distributor of the other embodiment of the present invention.

Specific embodiment

Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio Same or similar element is represented to same or similar label eventually or the element with same or like function.Below by ginseng The embodiment for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.

In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise " is, based on orientation shown in the drawings or position relationship, to be for only for ease of The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " are only used for Description purpose, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic. Thus, " first " is defined, one or more feature can be expressed or be implicitly included to the feature of " second ". In description of the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.

In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can Being to be mechanically connected, or electrically connect or can mutually communicate；Can be joined directly together, it is also possible to by between intermediary Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area For personnel, above-mentioned term concrete meaning in the present invention can be as the case may be understood.

In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score The first and second feature directly contacts can be included, it is also possible to be not directly contact but by it including the first and second features Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " include that first is special Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " below " include fisrt feature directly over second feature and oblique upper, or be merely representative of Fisrt feature level height is less than second feature.

Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and And purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter, This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or arranging Relation.Additionally, the invention provides various specific technique 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.

Refer to Fig. 1 and Fig. 2, the burner 100 of better embodiment of the present invention include bottom cup 10, ring-type distributor 20 and Fire cover 30.The bottom cup 10 includes inlet channel 12 and two nozzles 14 for connecting with the inlet channel 12 and setting up. The distributor 20 is arranged on the bottom cup 10, and the distributor 20 includes two and relative with described two nozzles 14 respectively sets The Venturi tube 22 put, the distributor 20 and the interval setting of bottom cup 10 with form gap 23 so as to allow primary air from The gap 23 enters described two Venturi tubes 22 and sprays into the combustion gas of described two Venturi tubes 22 with described two nozzles 14 Mixed gas are mixed to form, the distributor 20 is formed with the ring-type mixing chamber 24 connected with the Venturi tube 22, described The top of distributor 20 is formed with the notch 26 connected with the mixing chamber 24.The fire cover 30 is arranged on the distributor 20 On, the fire cover 30 covers the mixing chamber 24 and limits the notch 26 to limit the outlet of the mixed gas so as to shape Into flame rings.

The burner 100 of better embodiment of the present invention only with the mixing chamber 24 and the corresponding flame rings, Do not exist and connect with other mixing chamber 24 so that the phenomenon that interferes of the flame rings and other flame rings, in addition, Venturi tube of the supply mixed gas to other mixing chamber can also be reduced, so as to reduces cost.

In other words, the burner 100 of better embodiment of the present invention only includes ring-type mixing chamber 24 (i.e. equivalent to existing Have the outer shroud mixing chamber of burner), and connect with outer shroud mixing chamber and for producing unlike existing burner is also included The internal ring mixing chamber of raw flame ring.Further, since saving internal ring mixing chamber relative to existing burner, therefore also may be used To save existing burner for supplying Venturi tube of the mixed gas to internal ring mixing chamber.

In some embodiments, the inlet channel 12 is linear, and the distributor 20 is in annular shape, the air inlet Through the central shaft OO of the distributor 20, described two nozzles 14 are respectively arranged at the central shaft to the axis LL of passage 12 The both sides of OO.

It is arranged such, one comes because the inlet channel 12 is linear, simple structure, easy molding, and facilitates group Dress.Two, described two nozzles 14 are located at the two ends of the diameter of the distributor 20, thus, making the mixed gas uniformly supply To the mixing chamber 24.

Fig. 3 is seen also, in the present embodiment, the bottom cup 12 includes substantially horizontally disposed linear air inlet pipe 12a, inlet channel 12 described in the Inner Constitution of air inlet pipe 12a, described two nozzles 14 are arranged on air inlet pipe 12a On.The combustion gas is input into from described air inlet pipe 12a one end, supplies and continues to supply another forward after one of them described nozzle 14 The nozzle 14.

Please join Fig. 4, in some embodiments, the inlet channel 12b is in Y types and including two end points 12c, institute substantially Distributor 20 is stated in annular shape, the line of described two end points 12c through the distributor axis OO, described two nozzles 14 are respectively arranged on described two end points 12c.

It is arranged such, one, the distance and pressure that the combustion gas reaches described two nozzles 14 is identical so that two nozzles 14 supply is uniform, so as to improve the uniformity of the flame rings.Two, described two nozzles 14 are located at the distributor 20 The two ends of diameter, thus, make the mixed gas be evenly supplied the mixing chamber 24, so as to further improve the flame rings Uniformity.

In the present embodiment, the inlet channel 12b also includes the interface channel for connecting described two end points 12c 12d。

Thus, the combustion gas can be circulated in the inlet channel 12b, in other words, the combustion gas is reached and supplied After to a nozzle 14, the remaining combustion gas can move under pressure, by the interface channel 12d Another nozzle 14 is reached and supplies, thus, can be with combustion gas described in efficient utilization.

Certainly, the inlet channel is not limited to above embodiment, can regard demand in other implementations Using suitable shape and structure.

In some embodiments, described two nozzles 14 and described two Venturi tubes 22 are vertically arranged.

Because combustion gas density is relatively low, being arranged such can improve described two nozzles 14 and spray into described two Venturi tubes respectively 22 efficiency, such that it is able to improve the supply efficiency of the combustion gas.

Certainly, the setting of described two nozzles 14 and described two Venturi tubes 22 is not limited to present embodiment, and Can be obliquely installed depending on demand in other embodiment.

Please also refer to Fig. 5, in some embodiments, the bottom cup 10 forms two cup portion 16, described two nozzles 14 are formed in the cup portion 16, and the distributor 20 includes two shirt rims 28, described two shirt rims 28 and described two cup portion 16 top 16a correspondence and alignment, the bottom cup 10 or the distributor 20 include distance piece, described for being spaced apart Two shirt rims 28 and top 16a are forming the gap 23.

In present embodiment, the cup portion 16 is substantially bowl-shape in triangle, and forms arrival space 16b.Thus, primary air The arrival space 16b can be entered by the gap 23.Each described cup portion 16 upwardly extends to be formed at edge of opening Flange 16c, the top of the flange 16c is top 16a.

The distance piece is multiple raised 29 that the shirt rim 28 extends downwardly, the plurality of raised 29 with the top sides The shape and respective outer side edges of edge 16a so that the plurality of raised 29 can be erected at the distributor 20 on the bottom cup 10. Specifically, described raised 29 it is formed with the step surface 292 coordinated with top 16a.

It is appreciated that the distance piece 29 is not limited to present embodiment, can adopt depending on demand in other embodiments With other shapes and structure.For example, in another embodiment, the distance piece can be from top 16a Upwardly extend and shape and structure coordinate with the shirt rim 28 to set up multiple projections of the distributor 20.

Coordinate shape of the top than edge 16a, the shirt rim 28 is the arcwall around the Venturi tube 22. In some embodiments, the size of the shirt rim 28 is more than top 16a.

Thus, the shirt rim 28 is completely covered the cup portion 16, therefore can prevent the water on gas-cooker from splashing from the top down Inject in the cup portion 16.

In some embodiments, the Venturi tube 22 stretches into the cup portion 16.

Thus, one can shorten the distance between the Venturi tube 22 and described nozzle 14, the gas injection is improved Inject the efficiency of the Venturi tube 22, two, can mix with the primary air for the combustion gas and relative closure is provided Environment.

Certainly, the matching relationship of the bottom cup 10 and the distributor 20 is not limited to present embodiment, and can regard needs Ask using other suitable structures.

Please join Fig. 5-6, in the present embodiment, the distributor 20 includes dividing plate 21.The dividing plate 21 is in annulus substantially Shape, and it is formed with two island portions 211 for extending internally at its diametric two ends.Described two Venturi tubes 22 are respectively provided with And run through described two island portions 211.The both ends open of the Venturi tube 22 is respectively positioned at the both sides of the dividing plate 21.It is described Island portion 211 has been inwardly formed arc side 212.The shirt rim 28 extends downwardly from the arc side 212.

In the present embodiment, the distributor 20 includes two partition-type structures being arranged in the mixing chamber 24 25, the mixing chamber 24 is divided into into two independent sub-chamber 24a, 24b, described two Venturi tubes 22 are respectively with described two Individual sub-chamber 24a, 24b connection.

Specifically, the partition-type structures 25 are along radially extend the two of the distributor 20 in the mixing chamber 24 Individual partition walls 251, constitute groove 252 between described two partition walls 251.

Certainly, the partition-type structures 25 are not limited to present embodiment, in other embodiments, the partition-type structures 25 Can set according to demand.

The Venturi tube 22 is arranged at the centre position of described two partition-type structures 25, thus, the Venturi tube 22 Positioned at the centre position of the corresponding sub-chamber 24a (or 24b), the supply effect of the mixed gas can be improved.

In the present embodiment, the inlet channel 12 can include two independent subchannels, described two nozzles 14 It is separately positioned on described two subchannels.

Thus, it is corresponding to adjust each described subchannel by the fuel gas supply of the described two subchannels of independent control The size of flame rings.

Fig. 7 is referred to, in other embodiment, in the mixing chamber 24a of distributor 20a and is not provided with The partition-type structures 25, therefore, the mixing chamber 24a is single chamber, and is not provided with sub-chamber.

Certainly, the mixing chamber 24a is not limited to present embodiment, can set according to demand in other embodiments Put.

In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically enforcement The description of mode ", " example ", " specific example " or " some examples " etc. means to combine the embodiment or example describes Specific features, structure, material or feature are contained at least one embodiment of the present invention or example.In this specification In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the concrete spy of description Levy, structure, material or feature can in an appropriate manner be combined 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 various changes, modification, replacement in the case of principle and objective without departing from the present invention and become Type, the scope of the present invention is limited by claim and its equivalent.

Claims

1. a kind of burner, it is characterised in that include：

The ring-type distributor being arranged on the bottom cup, the distributor is oppositely arranged respectively including two with described two nozzles Venturi tube, the distributor allows primary air to enter from the gap with the bottom cup interval setting to form gap Enter described two Venturi tubes and spray into the combustion gas mixing formation mixed gas of described two Venturi tubes, institute with described two nozzles State distributor and be formed with the ring-type mixing chamber connected with the Venturi tube, the distributor top is formed with and mixes with described The notch of chamber；And

The fire cover being arranged in the distributor, the fire cover covers the mixing chamber and to limit the notch described to limit The outlet of mixed gas is so as to forming flame rings.

2. burner as claimed in claim 1, it is characterised in that the inlet channel is linear, and the distributor is in circle Ring-type, through the central shaft of the distributor, described two nozzles are respectively arranged at described point for the axis of the inlet channel The both sides of the central shaft of firearm.

3. burner as claimed in claim 1, it is characterised in that the inlet channel is in Y types and including two end points substantially, The distributor in annular shape, the line of described two end points through the distributor central shaft, described two nozzles difference It is arranged on described two end points.

4. burner as claimed in claim 3, it is characterised in that the inlet channel also includes the described two end points of connection Interface channel.

5. burner as claimed in claim 1, it is characterised in that described two nozzles and described two Venturi tubes vertically set Put.

6. burner as claimed in claim 1, it is characterised in that the bottom is cup-shaped into two cup portion, described two nozzle shapes In cup portion described in Cheng Yu, the distributor includes two shirt rims, the top pair of described two shirt rims and described two cup portion Should and align, the bottom cup or the distributor include distance piece, for being spaced apart described two shirt rims and described two cups The top in portion.

7. burner as claimed in claim 6, it is characterised in that top sides of the size of the shirt rim more than the bottom cup Edge.

8. burner as claimed in claim 6, it is characterised in that the Venturi tube stretches into the cup portion.

9. burner as claimed in claim 1, it is characterised in that the distributor is arranged at the mixing chamber including two Interior partition-type structures, for the mixing chamber to be divided into into two independent sub-chamber, described two Venturi tubes respectively with institute State two sub- chambers.

10. burner as claimed in claim 1, it is characterised in that the inlet channel includes two independent subchannels, institute State two nozzles to be separately positioned on described two subchannels.