CN205860004U - Burner and there is its gas-cooker - Google Patents

Abstract

This utility model provides a kind of burner and has its gas-cooker, wherein, burner includes fire structure, go out fire structure and include that center goes out fire portion and goes out project radially outward three of fire portion along center and cross fire portion outward, cross Huo Buyan center outside three and go out being provided at circumferentially spaced of fire portion, cross outward in fire portion and center goes out fire portion and is positioned at adjacent two and crosses outward the part between fire portion and be provided with big fire and go out fiery passage.The technical solution of the utility model can efficiently solve being relatively large in diameter of burner of the prior art, the problem that the thermal efficiency is relatively low.

Description

Burner and there is its gas-cooker

Technical field

This utility model relates to technical field of burner, in particular to a kind of burner and the gas-cooker with it.

Background technology

At present, national Energy Efficiency Standard that gas-cooker industry has been put into effect, one-level efficiency requirement more than 63%, and a lot of company The efficiency bottleneck of gas-cooker is typically about 64%, and the efficiency of gas-cooker cannot be effectively improved.This is because it is existing The structure of burner is generally circular.If the diameter of rounded burner is less, the internal ring of burner and outer shroud two enclose fire meeting Robbing auxiliary air, burning insufficient can produce flue gas, causes the thermal efficiency to reduce.Therefore, the diameter of existing burner is general relatively Greatly (between 100mm to 150mm), and so can cause the flame of the fire hole of burner close to the edge of pot, from the center of pot Far, also result in the thermal efficiency to reduce.

Utility model content

Main purpose of the present utility model is provide a kind of burner and have its gas-cooker, to solve prior art In being relatively large in diameter of burner, the problem that the thermal efficiency is relatively low.

To achieve these goals, according to an aspect of the present utility model, it is provided that a kind of burner, including going out fire knot Structure, goes out fire structure and includes that center goes out fire portion and goes out project radially outward three of fire portion along center and cross outward fire portion, three Cross outward Huo Buyan center and go out being provided at circumferentially spaced of fire portion, cross outward in fire portion and center goes out fire portion and is positioned at adjacent two Cross outward the part between fire portion be provided with big fire go out fire passage.

Further, center goes out the center big fire cover that fire portion includes that central flame cage and lid are located on central flame cage, outward Cross the peripheral big fire cover that fire portion includes that peripheral fire cover seat and lid are located on peripheral fire cover seat, central flame cage and peripheral fire cover seat Connecting, center big fire cover is connected with peripheral big fire cover.

Further, the peripheral upper edge of fire cover seat and the upper edge of central flame cage are positioned at the peripheral fire of adjacent two Part between cage is provided with big fire and goes out fire groove, the lower surface of the lower surface of center big fire cover and peripheral big fire cover respectively with Corresponding big fire goes out fire groove and jointly surrounds big fire and go out fire passage.

Further, center big fire cover having little fire air inlet, burner also includes covering and is located in the big fire cover of center Little fire cover, the lower surface of little fire cover has multiple along its circumferentially spaced protuberance, the lower surface of little fire cover, respectively protrudes The medial surface in portion and the upper surface of center big fire cover surround little fire inlet chamber, the lower surface of little fire cover, adjacent two jointly Relative two end face of protuberance and the upper surface of center big fire cover jointly surround little fire and go out fire passage.

Further, center big fire cover having annular groove, each protruding parts is in annular groove, and protuberance is along little fire The axial thickness of lid is more than the groove depth of annular groove.

Further, central flame cage is tubular, and the inwall of central flame cage is provided with separating part, and separating part is by center Fire cover seat is divided into top cylinder section and doffing section, and the big fire on central flame cage goes out fire groove and is positioned at the upper edge of top cylinder section, and center is big Fire cover, top cylinder section and separating part surround air feeding in center chamber jointly, and separating part is provided with the first air inlet, the first air inlet, Air feeding in center chamber and little fire air inlet are interconnected.

Further, peripheral big fire cover jointly surrounds peripheral inlet chamber, the bottom of doffing section with corresponding peripheral fire cover seat It is provided with the second air inlet, the inwall of doffing section is provided with three big fire air inlets, three big fire air inlets and three peripheries Inlet chamber one_to_one corresponding is arranged, and each big fire air inlet connects with corresponding peripheral inlet chamber.

Further, separating part includes along the separation main body being radially arranged of central flame cage and is connected to separate main body On extension, extension is positioned at the mouth of pipe of doffing section and extension and forms the first air inlet.

Further, big fire go out fire passage cross section rectangular.

Further, the end face of the corner of peripheral fire cover seat is less than the both sides of peripheral fire cover seat and peripheral fire cover seat End face away from the end of central flame cage.

Further, the outer edge that center big fire cover goes out fire groove with the peripheral corresponding big fire of big fire cover is provided with downwardly projecting Locating flange, locating flange along center big fire cover axial thickness less than big fire go out fire groove groove depth.

According to another aspect of the present utility model, it is provided that a kind of gas-cooker, including burner, burner is above-mentioned combustion Burner.

Application the technical solution of the utility model, the center of setting goes out fire portion and goes out the most convex of fire portion along this center Fire portion is crossed outside three gone out.Cross Huo Buyan center outside above three and go out being provided at circumferentially spaced of fire portion.Cross outward in fire portion And center goes out fire portion and is positioned at outside adjacent two and crosses the part between fire portion and be provided with big fire and go out fiery passage.Said structure Can realize reducing the peripheral diameter of burner, this is because adjacent two spaced outer crossing have between fire portion Enough spaces, if doing little by the peripheral diameter of burner, the big fire crossing fire portion outside adjacent two goes out fire passage Flame also will not influence each other.The peripheral diameter of burner does the little flame that big fire can be made afterwards to go out fire passage from the bottom of a pan Center is closer, and away from the edge in the bottom of a pan, some, thus improve the thermal efficiency.Outer cross in fire portion and center goes out additionally, each Fire portion is positioned at outside adjacent two and crosses the part between fire portion and be provided with big fire and go out fire passage, and this just makes big fire go out fiery passage The flame of ejection can be covered with the bottom of a pan, and heats is more preferable.

Accompanying drawing explanation

The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, this practicality Novel schematic description and description is used for explaining this utility model, is not intended that improper restriction of the present utility model. In the accompanying drawings:

Fig. 1 shows the decomposition texture schematic diagram of the embodiment according to burner of the present utility model；

Fig. 2 shows the decomposition texture schematic diagram of another angle of the burner of Fig. 1；

Fig. 3 shows enlarged diagram at the A of the burner of Fig. 2；

Fig. 4 shows the schematic top plan view of the burner of Fig. 1；

Fig. 5 shows that the B-B of the burner of Fig. 4 is to cross-sectional schematic；

Fig. 6 shows the structural representation of the little fire cover of the burner of Fig. 1；

Fig. 7 shows the schematic front view of the little fire cover of Fig. 6；

Fig. 8 shows the elevational schematic view of the little fire cover of Fig. 6；

Fig. 9 shows center big fire cover and the structural representation of peripheral big fire cover of the burner of Fig. 1；

Figure 10 shows center big fire cover and the schematic top plan view of peripheral big fire cover of Fig. 9；

Figure 11 shows that the C-C of the center big fire cover of Figure 10 and peripheral big fire cover is to cross-sectional schematic；

Figure 12 shows central flame cage and the structural representation of peripheral fire cover seat of the burner of Fig. 1；

Figure 13 shows central flame cage and the schematic top plan view of peripheral fire cover seat of Figure 12；And

Figure 14 shows that the D-D of the central flame cage of Figure 13 and peripheral fire cover seat is to cross-sectional schematic.

Wherein, above-mentioned accompanying drawing includes the following drawings labelling:

11, central flame cage；111, separating part；1111, the first air inlet；1112, main body is separated；1113, extension； 112, top cylinder section；113, doffing section；1131, the second air inlet；1132, big fire air inlet；12, peripheral fire cover seat；13, big fire goes out Fire groove；21, center big fire cover；211, little fire air inlet；212, annular groove；213, locating flange；22, peripheral big fire cover；30、 Little fire cover；31, protuberance；41, little fire inlet chamber；50, air feeding in center chamber；60, peripheral inlet chamber；70, water receiving tank.

Detailed description of the invention

It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases Combination mutually.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Description only actually at least one exemplary embodiment is illustrative below, never as to this practicality Any restriction that is novel and that apply or use.Based on the embodiment in this utility model, those of ordinary skill in the art are not having Have and make the every other embodiment obtained under creative work premise, broadly fall into the scope of this utility model protection.

It should be noted that term used herein above merely to describe detailed description of the invention, and be not intended to restricted root Illustrative embodiments according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when using term " to comprise " in this manual and/or " bag Include " time, it indicates existing characteristics, step, operation, device, assembly and/or combinations thereof.

Unless specifically stated otherwise, the parts illustrated the most in these embodiments and the table positioned opposite, digital of step Reach formula and numerical value is not intended to scope of the present utility model.Simultaneously, it should be appreciated that for the ease of describing, each shown in accompanying drawing The size of individual part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant Art, method and apparatus may be not discussed in detail, but in the appropriate case, described technology, method and apparatus should be considered to award A part for power description.Shown here with in all examples discussed, any occurrence should be construed as merely example Property rather than as limit.Therefore, other example of exemplary embodiment can have different values.It should also be noted that it is similar Label and letter in following accompanying drawing represent similar terms, therefore, the most a certain Xiang Yi accompanying drawing is defined, then with After accompanying drawing in need not it is further discussed.

In description of the present utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " horizontal, Vertically, vertically, level " and the indicated orientation such as " top, the end " or position relationship be normally based on orientation shown in the drawings or position Put relation, be for only for ease of description this utility model and simplify description, in the case of illustrating on the contrary, these nouns of locality Do not indicate that and imply that the device of indication or element must have specific orientation or with specific azimuth configuration and operation, because of This is it is not intended that restriction to this utility model protection domain；The noun of locality " inside and outside " refers to the wheel relative to each parts itself Wide is inside and outside.

For the ease of describing, space relative terms here can be used, as " ... on ", " ... top ", " at ... upper surface ", " above " etc., be used for describing such as a device shown in the figure or feature and other devices or spy The spatial relation levied.It should be appreciated that space relative terms is intended to comprise except the described in the drawings orientation of device Outside different azimuth in use or operation.Such as, if the device in accompanying drawing is squeezed, then it is described as " at other devices Part or structure above " or " other devices or structure on " device after will be positioned as " other devices or construct under Side " or " under other devices or structure ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.This device can also other different modes location (90-degree rotation or be in other orientation), and And space used herein above described relatively make respective explanations.

Furthermore, it is necessary to explanation, the word such as " first ", " second " is used to limit parts, it is only for be easy to Distinguishing corresponding parts, as not having Stated otherwise, above-mentioned word does not has particular meaning, therefore it is not intended that to this The restriction of utility model protection scope.

As depicted in figs. 1 and 2, the burner of the present embodiment includes fire structure.Above-mentioned go out fire structure include that center goes out fire Portion and cross fire portion outside go out project radially outward three of fire portion along center.Cross Huo Buyan center outside three and go out fire portion It is provided at circumferentially spaced.Cross outward in fire portion and center goes out fire portion and is positioned at outside adjacent two part crossed between fire portion and is all provided with It is equipped with big fire and goes out fire passage.

The burner of application the present embodiment, the center of setting goes out fire portion and goes out projecting radially outward of fire portion along this center Fire portion is crossed outside three.Cross Huo Buyan center outside above three and go out being provided at circumferentially spaced of fire portion.Cross outward in fire portion and Center goes out fire portion and is positioned at outside adjacent two and crosses the part between fire portion and be provided with big fire and go out fiery passage.Said structure is permissible Realize reducing the peripheral diameter of burner, this is because adjacent two spaced outer crossing have between fire portion enough Space, if doing little by the peripheral diameter of burner, the big fire crossing fire portion outside adjacent two goes out the flame of fiery passage Also will not influence each other.The peripheral diameter of burner does the little flame that big fire can be made afterwards the to go out fire passage center from the bottom of a pan Closer, away from the edge in the bottom of a pan, some, thus improve the thermal efficiency.Outer cross in fire portion and center goes out fire portion additionally, each Crossing the part between fire portion outside adjacent two to be provided with big fire and go out fire passage, this just makes big fire go out fire passage to spray Flame can be covered with the bottom of a pan, heats is more preferable.

It should be noted that in the present embodiment, the angle formed between fire portion is crossed outside the most adjacent two equal, also That is, cross fire portion outside three and be uniformly distributed, certainly, in other embodiments the most unshowned, outside three, cross fire Portion can also uneven distribution, as long as ensureing to cross outside adjacent two that there is between fire portion enough spaces.

As shown in Figures 1 to 5, in the burner of the present embodiment, center goes out fire portion and includes that central flame cage 11 and lid set Center big fire cover 21 on central flame cage 11.Cross outward fire portion and include that peripheral fire cover seat 12 and lid are located at peripheral fire cover seat 12 On peripheral big fire cover 22, say, that peripheral fire cover seat 12 is three, and three peripheral fire cover seats 12 are along central flame cage 11 Project radially outward, and three peripheral fire cover seat 12 being provided at circumferentially spaced along central flame cage 11, peripheral big fire cover 22 is Three, three peripheral big fire cover 22 projecting radially outward along center big fire cover 21, and three peripheral big fire cover 22 are along center Being provided at circumferentially spaced of big fire cover 21.In the present embodiment, central flame cage 11 and peripheral fire cover seat 12 are connected to form one knot Structure.Center big fire cover 21 and peripheral big fire cover 22 are connected to form one structure.Above-mentioned center big fire cover 21 and peripheral big fire cover 22 The most detachably lid is located on central flame cage 11 and peripheral fire cover seat 12, so easily facilitates transport, installs and change, uses Motility is higher.Certainly, center goes out fire portion and crosses outward the structure in fire portion and be not limited to this, other embodiment party the most unshowned In formula, center goes out fire portion and crosses outward the entirety in fire portion and can be structure as a whole.

As shown in Figure 1, Figure 2, shown in Figure 12 to Figure 14, in the burner of the present embodiment, the upper edge of peripheral fire cover seat 12 with And the part that the upper edge of central flame cage 11 is between two adjacent peripheral fire cover seats 12 is provided with big fire and goes out fire groove 13.After center big fire cover 21 lid is located on central flame cage 11, the lower surface of center big fire cover 21 and central flame cage 11 Big fire on upper edge goes out fire groove 13 and jointly surrounds and be positioned at center and go out the big fire in fire portion and go out fiery passage.When peripheral big fire cover 22 is covered After being located on peripheral fire cover seat 12, the lower surface of peripheral big fire cover 22 goes out fire groove with the big fire on the upper edge of peripheral fire cover seat 12 13 jointly surround peripherally located go out big fire in fire portion go out fire passage.Above-mentioned big fire goes out fire groove 13 and easily facilitates processing and fabricating.? In the present embodiment, the big fire being positioned on same edge goes out the centrage of fire groove 13 and is parallel to each other, and big fire goes out the cross section of fire groove 13 Rectangular, i.e. big fire go out fire passage cross section rectangular.Going out fire passage compared to rounded, above-mentioned rectangular big fire goes out Fire passage is more prone to manufacture, and the cross-sectional area going out fire passage strengthens, the more conducively steady flame of flame.Certainly, big fire goes out fire The shape of the cross section of passage is not limited to this, and in other embodiments the most unshowned, big fire goes out the cross section of fire passage Can be other shapes.

As shown in Figure 1 to 11, in the burner of the present embodiment, the middle part of center big fire cover 21 has little fire air inlet 211.Burner also includes covering the little fire cover 30 being located in center big fire cover 21.Have multiple along it on the lower surface of little fire cover 30 Circumferentially spaced protuberance 31.When little fire cover 30 lid is located in center big fire cover 21, the lower surface of little fire cover 30, each convex The upper surface of the medial surface and center big fire cover 21 that go out portion 31 surrounds little fire inlet chamber 41 jointly.The lower surface of little fire cover 30, Relative two end face of two adjacent protuberances 31 and the upper surface of center big fire cover 21 jointly surround little fire and go out fiery logical Road.Little fire air inlet 211 goes out fire passage and connects with little fire inlet chamber 41 respectively with little fire, and fuel gas mixture is by little fire air inlet 211 enter in little fire inlet chamber 41, and go out fire passage ejection burning formation flame by little fire.Above-mentioned little fire cover 30 is detachably Lid is located in center big fire cover 21, so easily facilitates transport, installs and change, and uses motility higher.Certainly, little fire cover 30 It is not limited to this with the structure of center big fire cover 21, in other embodiments the most unshowned, little fire cover and center big fire cover Can be structure as a whole.

As shown in Fig. 1, Fig. 5 to Figure 11, in the burner of the present embodiment, center big fire cover 21 has annular groove 212, annular groove 212 is positioned at the periphery of little fire air inlet 211, and each protuberance 31 is positioned at annular groove 212.Above-mentioned annular is recessed Little fire cover 30 is played the effect of location by groove 212, easily facilitates assembling.Protuberance 31 is more than along the axial thickness of little fire cover 30 The groove depth of annular groove 212, say, that center big fire cover 21 be positioned at the upper surface of the peripheral part of annular groove 212 with Forming first between the lower surface of little fire cover 30 and go out fire open gap, first goes out fire open gap ringwise and goes out fire channel connection with little fire. When little fire cover 30 is assembled, little fire cover 30 is positioned in center big fire cover 21, now, the lateral wall of protuberance 31 with The outer shroud sidewall of annular groove 212 fits, and plays the positioning action to little fire cover 30 with this.Further, it is also possible to by increasing Steady pin correcting center big fire cover 21 and little fire cover 30 complete location assembling.Fuel gas mixture is entered by little fire air inlet 211 Enter in little fire inlet chamber 41, and go out fire passage by little fire, first go out fire open gap and give vent to anger, lower along burning in little fire cover 30. In the present embodiment, the first height going out fire open gap is 0.5 to 1 millimeter, and this first goes out fire open gap and play the work passing fiery and steady flame With.

As shown in Fig. 1, Fig. 4, Fig. 5, Fig. 9 to Figure 11, in the burner of the present embodiment, the upper surface of peripheral big fire cover 22 Having the water receiving tank 70 being downwardly concaved, the corresponding peripheral big fire cover 22 of above-mentioned water receiving tank 70 is away from the limit of the end of center big fire cover 21 Place is provided with outlet.Can produce water droplet when fuel gas buring, above-mentioned water receiving tank 70 can be used to hold above-mentioned water droplet, water outlet Mouth is for collecting the water droplet that water receiving tank 70 holds.

As shown in Fig. 2, Fig. 5 and Figure 11, in the burner of the present embodiment, center big fire cover 21 and peripheral big fire cover 22 Corresponding big fire goes out the outer edge of fire groove 13 and is provided with downwardly projecting locating flange 213, say, that locating flange 213 along in Setting in one week of the outer edge of heart big fire cover 21 and peripheral big fire cover 22.When center big fire cover 21 and peripheral big fire cover 22 are carried out During assembling, center big fire cover 21 and peripheral big fire cover 22 are placed on central flame cage 11 and peripheral fire cover seat 12, convex Edge 213 covers central flame cage 11 and peripheral fire cover seat 12, the medial surface of locating flange 213 and central flame cage 11 and periphery fire The lateral surface of cage 12 matches, and plays the effect of location, easily facilitates assembling.Further, it is also possible to lead by increasing steady pin Center big fire cover 21 and peripheral big fire cover 22 complete location assembling with central flame cage 11 and peripheral fire cover seat 12.Above-mentioned fixed Position flange 213 along center big fire cover 21 axial thickness less than big fire go out fire groove 13 groove depth, so can avoid convex Edge 213 cover completely big fire go out fire groove 13, thus avoid locating flange 213 have influence on big fire go out fire groove 13 go out fire.

As shown in Fig. 2, Fig. 5, Figure 12 to Figure 14, in the burner of the present embodiment, central flame cage 11 is in tubular.Center Separating part 111 it is provided with on the inwall of fire cover seat 11.Central flame cage 11 is divided into top cylinder section 112 and doffing by separating part 111 Section 113.Big fire on central flame cage 11 goes out fire groove 13 and is positioned at the upper edge of top cylinder section 112.Center big fire cover 21, top cylinder section 112 and separating part 111 jointly surround air feeding in center chamber 50.The first air inlet 1111 it is provided with on separating part 111.First air inlet Mouth 1111, air feeding in center chamber 50 and little fire air inlet 211 are interconnected.First air inlet 1111 is connected with little fire induction tunnel, Fuel gas mixture enters in air feeding in center chamber 50 by little fire induction tunnel, the first air inlet 1111, now, and above-mentioned combustion gas mixing A part in gas goes out fire groove 13 ejection by the big fire on the upper edge of top cylinder section 112 and forms flame, above-mentioned fuel gas mixture In another part entered in little fire inlet chamber 41 by little fire air inlet 211, and go out fiery passage by little fire, first go out fire Give vent to anger in gap, in the lower edge burning of little fire cover 30.The big fire of top cylinder section 112 goes out fire groove 13 ejection portion combustion gas and can effectively divide Dissipate combustion gas, reduce the load of little fire cover 30.

As shown in Fig. 2, Fig. 5, Figure 12 to Figure 14, in the burner of the present embodiment, separating part 111 includes along central flame cap Seat 11 the separations main body 1112 being radially arranged and be connected to separation main body 1112 on extension 1113.Center big fire cover 21, top cylinder section 112 and separation main body 1112 surround air feeding in center chamber 50 jointly.Extension 1113 is positioned at doffing section 113 also And the mouth of pipe of extension 1113 forms the first air inlet 1111.Above-mentioned extension 1113 is more conducive to the connection of little fire induction tunnel.

As shown in Fig. 2, Fig. 5, Figure 12 to Figure 14, in the burner of the present embodiment, the bottom lock of peripheral fire cover seat 12, Peripheral big fire cover 22 jointly surrounds peripheral inlet chamber 60 with corresponding peripheral fire cover seat 12.The bottom of doffing section 113 is provided with Two air inlets 1131, the inwall of doffing section 113 is provided with three big fire air inlets 1132.Three big fire air inlets 1132 and three Individual peripheral inlet chamber 60 one_to_one corresponding is arranged.Each big fire air inlet 1132 connects with corresponding peripheral inlet chamber 60.Second air inlet Mouth 1131 is connected with big fire induction tunnel, and fuel gas mixture is introduced into doffing section by big fire induction tunnel, the second air inlet 1131 In the cavity of 113, then entered in peripheral inlet chamber 60 by big fire air inlet 1132, and go out fire groove 13 ejection burning from big fire Form flame.

As shown in Figures 2 and 3, in the burner of the present embodiment, the end face S1 of the corner of peripheral fire cover seat 12 is less than The end face S2 of the both sides of peripheral fire cover the seat 12 and end face S3 of the end away from central flame cage 11 of peripheral fire cover seat 12.When After peripheral big fire cover 22 lid is located on peripheral fire cover seat 12, the lower surface of peripheral big fire cover 22 and the corner of peripheral fire cover seat 12 End face S1 between formed and second go out fire open gap.Above-mentioned second goes out fire open gap connects, for gas outlet with peripheral inlet chamber 60 Fiery with passing, prevent the generation from flame phenomenon.In the present embodiment, the second height going out fire open gap is 0.5 to 1 millimeter.

Secondary-air passage has been stayed in the middle of the interior ring flame of existing burner and outer shroud flame, when burning, outside Fresh air promptly can carry out heat exchange with the hot-air in outer shroud, internal ring and waste gas by these secondary-air passage.So And, existing secondary-air passage structure is more complicated, gets to the flame periphery of internal ring through several turnings, now air pressure Power loss is the biggest so that the flame flame face of internal ring is longer much than interior ring flame flame face when closing outer shroud flame, flame Flame face is the longest, and peak flame temperature point can be the lowest, thus causes the thermal efficiency relatively low.Additionally, interior ring flame and outer shroud flame meeting Rob the auxiliary air in secondary-air passage, be easily caused fuel gas buring insufficient, thus produce flue gas.

The burner of the present embodiment is not provided with secondary-air passage, all goes out fire passage by big fire and little fire goes out outside fire passage The air enclosed is to carry out secondary supplement, and each big fire of such burner goes out fire passage and little fire goes out the secondary required for fire passage Air supplements the most smoothly and puts in place, and flame flame face is relatively short, and burning is more abundant, owing to flame flame face is short, and temperature phase To concentration, can promptly the bottom of a pan be heated.Specifically, when pot is heated by the burner using the present embodiment, the bottom of a pan Water beyond the region of the diameter of corresponding flame and the water within this region carry out heat exchange amount, in heat energy transmittance process, are added The hot kinetic energy that the hydrone of heat provides, a part is converted into kinetic energy loss, and a part carries out heat exchange for the water low with temperature. Proving through Internal Experiment, the equivalent effective diameter of the flame of the burner of the present embodiment is in 80 millimeter, in can making pot Water be uniformly heated, the hot kinetic energy rejection when water in pot is carried out heat exchange is preferably minimized, and the thermal efficiency can be up to 65% Above, and flue gas is relatively low.

Present invention also provides a kind of gas-cooker (not shown), include combustion according to the embodiment of the gas-cooker of the application Burner, burner is above-mentioned burner.The thermal efficiency of the gas-cooker with said burner is significantly improved.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (12)

1. a burner, it is characterised in that include fire structure, described in go out fire structure include that center goes out fire portion and along described Center crosses fire portion outside going out project radially outward three of fire portion, three described, and crossing fire portion goes out fire portion along described center outward Be provided at circumferentially spaced, described outer cross in fire portion and described center go out fire portion be positioned at adjacent two described cross outward fire portion it Between part be provided with big fire go out fire passage.

Burner the most according to claim 1, it is characterised in that described center go out fire portion include central flame cage (11) and Lid is located at the center big fire cover (21) on described central flame cage (11), described outer cross fire portion include periphery fire cover seat (12) and Lid is located at the peripheral big fire cover (22) on described peripheral fire cover seat (12), described central flame cage (11) and described peripheral fire cover seat (12) connecting, described center big fire cover (21) is connected with described peripheral big fire cover (22).

Burner the most according to claim 2, it is characterised in that the upper edge of described peripheral fire cover seat (12) and described The part that the upper edge of central flame cage (11) is positioned between the described peripheral fire cover seat (12) of adjacent two is provided with big fire Going out fire groove (13), the lower surface at described center big fire cover (21) and the lower surface of described peripheral big fire cover (22) are respectively with corresponding Described big fire go out fire groove (13) jointly surround described big fire go out fire passage.

Burner the most according to claim 3, it is characterised in that there is on described center big fire cover (21) little fire air inlet (211), described burner also includes the little fire cover (30) that lid is located on described center big fire cover (21), described little fire cover (30) Have multiple along its circumferentially spaced protuberance (31) on lower surface, the lower surface of described little fire cover (30), each described convex The upper surface of the medial surface and described center big fire cover (21) that go out portion (31) surrounds little fire inlet chamber (41), described little fire jointly The lid lower surface of (30), relative two end face of adjacent two described protuberances (31) and described center big fire cover (21) Upper surface jointly surround little fire go out fire passage.

Burner the most according to claim 4, it is characterised in that on described center big fire cover (21), there is annular groove (212), each described protuberance (31) is positioned at described annular groove (212), and described protuberance (31) is along described little fire cover (30) Axial thickness more than the groove depth of described annular groove (212).

Burner the most according to claim 4, it is characterised in that described central flame cage (11) in tubular, described center Being provided with separating part (111) on the inwall of fire cover seat (11), described central flame cage (11) is divided into by described separating part (111) Top cylinder section (112) and doffing section (113), the described big fire on described central flame cage (11) goes out fire groove (13) and is positioned at described top cylinder The upper edge of section (112), described center big fire cover (21), described top cylinder section (112) and described separating part (111) surround jointly Air feeding in center chamber (50), described separating part (111) is provided with the first air inlet (1111), described first air inlet (1111), Described air feeding in center chamber (50) and described little fire air inlet (211) are interconnected.

Burner the most according to claim 6, it is characterised in that described peripheral big fire cover (22) and corresponding described periphery Fire cover seat (12) surrounds peripheral inlet chamber (60) jointly, and the bottom of described doffing section (113) is provided with the second air inlet (1131), Be provided with three big fire air inlets (1132) on the inwall of described doffing section (113), three described big fire air inlets (1132) with Three described peripheral inlet chamber (60) one_to_one corresponding are arranged, each described big fire air inlet (1132) and corresponding described peripheral air inlet Chamber (60) connects.

Burner the most according to claim 6, it is characterised in that described separating part (111) includes along described central flame cap The seat separation main body (1112) being radially arranged of (11) and be connected to the extension (1113) on described separation main body (1112), Described extension (1113) is positioned at the mouth of pipe of described doffing section (113) and described extension (1113) and forms described first and enter QI KOU (1111).

Burner the most according to claim 1, it is characterised in that the cross section that described big fire goes out fire passage is rectangular.

Burner the most according to claim 3, it is characterised in that the end face of the corner of described peripheral fire cover seat (12) Less than the both sides of described peripheral fire cover seat (12) and described peripheral fire cover seat (12) away from described central flame cage (11) The end face of end.

11. burners according to claim 3, it is characterised in that described center big fire cover (21) and described peripheral big fire Lid (22) corresponding described big fire goes out the outer edge of fire groove (13) and is provided with downwardly projecting locating flange (213), described convex Edge (213) along described center big fire cover (21) axial thickness less than described big fire go out fire groove (13) groove depth.

12. 1 kinds of gas-cookers, including burner, it is characterised in that described burner is according to any one of claim 1 to 11 Burner.