CN108870395B - Fire cover base of combustor for gas stove, furnace end, combustor and gas stove - Google Patents
Fire cover base of combustor for gas stove, furnace end, combustor and gas stove Download PDFInfo
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- CN108870395B CN108870395B CN201710337617.6A CN201710337617A CN108870395B CN 108870395 B CN108870395 B CN 108870395B CN 201710337617 A CN201710337617 A CN 201710337617A CN 108870395 B CN108870395 B CN 108870395B
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- gas
- burner
- outer ring
- inner ring
- fire cover
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention relates to a fire cover base of a burner for a gas stove, a burner head, the burner and the gas stove. Fire lid base (4) include outer loop gas import (42) and be used for holding recess (47) of gas, outer loop gas import (42) are used for supplying the gas of outer loop gas nozzle (521) supply to get into fire lid base (4), fire lid base (4) still include a plurality of air guide groove (43), air guide groove (43) intercommunication recess (47) with outer loop gas import (42), wherein, fire lid base (4) still include a plurality of reposition of redundant personnel portions (420), outer loop gas import (42) quilt reposition of redundant personnel portion (420) are separated into a plurality of gas distribution ports (42a, 42b,42 c), every air guide groove (43) correspond at least one reposition of redundant personnel portion (420). Thereby make the gas air current that gets into in the recess through twice reposition of redundant personnel, the more even of mixture.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of gas cookers, in particular to a fire cover base of a burner for a gas cooker, a burner head of the burner for the gas cooker with the fire cover base, the burner for the gas cooker with the burner head and the gas cooker with the burner.
[ background of the invention ]
The cooking mode ensures that consumers want the household cooker product to have the largest heat load and the best energy-saving effect. Therefore, such products are the focus of research and development of various gas stove manufacturers.
[ summary of the invention ]
The present invention is directed to an improved burner cover base of a gas cooker, a burner with the improved burner cover base, and a gas cooker with the improved burner cover base.
In order to achieve the technical purpose, the invention firstly provides the following technical scheme: the utility model provides a fire lid base of combustor for gas-cooker, includes outer loop gas import and the recess that is used for holding the gas, outer loop gas import is used for supplying the gas entering of outer loop gas nozzle supply fire lid base, fire lid base still includes a plurality of air guide grooves, air guide groove intercommunication the recess with outer loop gas import, wherein, fire lid base still includes a plurality of reposition of redundant personnel portions, outer loop gas import quilt reposition of redundant personnel portion separates into a plurality of gas ports, every air guide groove corresponds at least one reposition of redundant personnel portion.
The technical effect of the invention is that the fuel gas at the fuel gas inlet of the outer ring flows through the flow dividing part and is divided into a plurality of fuel gas flows, the pressure of the fuel gas is reduced, and the flow rate is reduced, so that the subsequent uniform mixing is facilitated. The invention has the further technical effect that part of the gas flow coming out of the gas distributing opening on one side of the gas distributing part and part of the gas flow coming out of the gas distributing opening on the other side of the gas distributing part are converged into the gas guide groove corresponding to the gas distributing part, which is equivalent to secondary gas distributing on the basis of the prior gas distributing. The gas flow of the outer ring gas inlet is divided into a plurality of gas flows by primary flow division, and the plurality of gas flows in the front are converged into the gas guide groove after being divided by secondary flow division, so that the gas flows entering the groove are mixed more uniformly.
In a possible implementation manner, the fire cover base comprises a plurality of air inlets, the fire cover base is provided with a plurality of surrounding blocking parts arranged at intervals, each surrounding blocking part surrounds one air inlet, and the air guide groove is formed between two adjacent surrounding blocking parts. In a preferred embodiment, each of the enclosures has the same cross-section as the enclosed air inlet. The air inlet is used for supplying secondary air to the burner. The air inlet is in direct communication with the outside atmosphere.
In a possible embodiment, the fire lid base comprises a surrounding outer ring wall, the enclosure part is located on the inner side of the outer ring wall, and the groove is formed between the outer ring wall and the enclosure part.
In a possible embodiment, each air guide groove corresponds to one of the flow dividing portions. This makes the structural design simpler. Therefore, the partial gas flow coming out from the gas distributing opening on one side of the flow distributing part and the partial gas flow coming out from the gas distributing opening on the other side of the flow distributing part are mixed and converged into the gas guide groove corresponding to the flow distributing part.
In a possible embodiment, each of the flow dividing portions faces a central position of one of the air guide grooves. In this way, the gas is distributed more evenly. Half of the gas quantity separated from the gas separating port on one side of the flow dividing part and half of the gas quantity separated from the gas separating port on the other side of the flow dividing part are converged into the gas guide grooves corresponding to the flow dividing part.
In order to distribute the gas more uniformly, in one possible embodiment, the distribution portions extend linearly, and the extending direction of each distribution portion coincides with the symmetry axis of the corresponding gas guide groove.
In a possible embodiment, the extension direction of the flow dividing portion is perpendicular to the gas flow direction at the outer ring gas inlet. The setting of reposition of redundant personnel portion has increased the resistance of outer loop gas import department, plays the effect of decompression, reduction velocity of flow to the gas air current that gets into to make follow-up mixture more even.
Based on the structural design of whole fire lid base, the secondary air passageway's of comprehensive consideration arranges and the mixture of gas air current, in a possible implementation, fire lid base includes three reposition of redundant personnel portion, three gas distribution mouth is separated into to outer loop gas import.
In a possible embodiment, the fire cover base further includes an inner ring gas inlet, the inner ring gas inlet is used for allowing gas supplied by the inner ring gas nozzle to enter the burner, the fire cover base has a barrel body, an inlet of the barrel body forms the inner ring gas inlet, and the flow dividing portion is connected between an outer wall of the barrel body and a wall surrounding the outer ring gas inlet. The advantage of this embodiment is that the inner ring gas inlet and the outer ring gas inlet are both formed on the fire cover base, which is beneficial for reducing the accumulated tolerance of the parts of the whole burner or burner. For example, the inner ring gas inlet and the outer ring gas inlet on the fire cover base are positioned on the same plane and are formed at one time in the machining process, the tolerance is small, the upper end surface of the inner ring pressure stabilizing cavity and the upper end surface of the outer ring pressure stabilizing cavity on the combustor base can also be positioned on the same plane and are machined at one time, and the accumulated tolerance of the whole combustor is reduced to a great extent by matching the fire cover base with the combustor base.
In one possible embodiment, the fire cover base includes an inner ring gas flow passage and an outer ring gas flow passage, the barrel portion encloses the inner ring gas flow passage, and the outer ring gas flow passage includes the outer ring gas inlet, the air guide groove and the groove; and in the use state of the fire cover base, the inner ring gas flow channel and the outer ring gas flow channel are mutually isolated.
In one possible embodiment, the upper surface of the cylindrical body and the upper surface of the portion where the air guide groove is formed are located on the same plane. Thus, the two can be formed at one time in the machining process, and the tolerance is small. And the lower end surface of the wall body part opposite to the barrel body part on the fire cover can be positioned on the same plane with the connecting groove and is formed at one time in the machining process, so that the accumulated tolerance is reduced. So that the fire cover and the fire cover base are tightly matched and seamed.
In one possible embodiment, the fire lid base is an integrally formed integral piece. The integral forming integral piece of the embodiment can be formed by forging, die casting or casting, so that the number of parts of the whole combustor is reduced, and the assembly efficiency is higher.
Based on the same inventive concept, the invention also provides a burner of the burner for the gas stove, which comprises the fire cover base.
In a possible implementation manner, the burner comprises a fire cover, and the fire cover is detachably covered on the fire cover base.
In a possible implementation manner, the fire cover comprises an inner ring cover part and an outer ring cover part surrounding the periphery of the inner ring cover part, the bottom of the outer ring cover part is concave inwards to form an outer ring concave part, the outer ring concave part and the groove are matched to form an outer ring gas mixing chamber, the outer ring gas mixing chamber is used for containing gas supplied by the outer ring gas nozzle, and an outer ring gas outlet communicated with the outer ring gas mixing chamber is arranged on the outer ring cover part; the inner ring cover part is provided with a first concave part which is concave inwards, the first concave part is matched with the fire cover base to form an inner ring gas mixing chamber, the inner ring gas mixing chamber is used for containing gas supplied by an inner ring gas nozzle, the inner ring cover part is provided with a first gas outlet which is communicated with the inner ring gas mixing chamber, the inner ring cover part is further provided with a second gas outlet, and the second gas outlet is communicated with the outer ring gas mixing chamber.
Therefore, when the burner is in the maximum fire, flames are respectively arranged at the outer ring air outlet positioned on the outer ring cover part of the burner, the first air outlet and the second air outlet positioned on the inner ring cover part of the burner, the burner can reach enough power, the heat efficiency of the burner is ensured, and the bottom of the boiler is uniformly heated; when the furnace end is in minimum fire, the outer ring gas channel corresponding to the outer ring gas nozzle is closed, so that the outer ring gas mixing chamber is not supplied with gas, the flame on the outer ring cover part of the furnace end is extinguished, the flame of the second gas outlet on the inner ring cover part is also in an extinguished state, and only the first gas outlet keeps flame. Therefore, in the using state of the furnace end, the inner annular cover part of the furnace end can have enough power when the maximum fire of the furnace end occurs, so that the heat efficiency of the whole furnace end is ensured; and when the furnace end has minimum fire, the power is small enough to meet the requirements of users on the small fire, such as milk cooking, porridge cooking, heat preservation or tomato sauce making and the like. The gas stove adopting the burner of the invention has wider firepower or power control range than the prior gas stove.
The burner has the advantages that the second air outlet on the inner ring cover part of the burner is communicated with the outer ring air mixing chamber, the second air outlet supplies gas through the outer ring gas nozzle, so that more sufficient primary air quantity can be obtained, the combustion is more sufficient, the emission of waste gas such as CO is reduced, the heat efficiency of the burner can be obviously improved, and through experiments, the heat efficiency of the gas stove adopting the burner in the embodiment of the invention can reach 69-70%. The existing gas stove in the market can only achieve 64-65% best.
In a possible embodiment, the first air outlet and the second air outlet are formed on the same smoothly extending surface of the inner ring cover portion. It should be noted that if the first air outlet or the second air outlet is an annular air outlet groove extending circumferentially along a smooth circumferential surface, the circumferential surface cannot be divided into two surfaces by the annular air outlet groove, and both are considered to be formed on the two surfaces, and in this case, it should be understood that both are formed on the same smooth surface.
In a possible implementation manner, the fire cover further comprises a connecting part connected between the outer ring cover part and the inner ring cover part, the connecting part and the air guide groove are matched to form an air guide channel, and the air guide channel is communicated with the outer ring gas inlet and the outer ring gas mixing chamber. The connecting part not only forms a component part of the air guide channel, but also connects the inner ring cover part and the outer ring cover part, so that the fire cover can form an integrally formed integral piece, the manufacture is convenient, and the parts of the gas stove are reduced. The connecting part can comprise a flat plate part, and a groove matched with the fire cover base is arranged on the fire cover base to form an air guide channel; or the connecting part comprises a groove, and a flat plate part or a groove matched with the fire cover base is arranged on the fire cover base to form an air guide channel.
The invention also provides a burner for a gas cooker, which comprises the burner.
Finally, the invention provides a gas cooker comprising a burner for a gas cooker as described above.
[ description of the drawings ]
FIG. 1 is a perspective view of a fire lid according to a first embodiment of the present invention;
FIG. 2 is a perspective view of the fire lid of the first embodiment of the present invention with the bottom portion facing upward;
FIG. 3 is a cross-sectional view of a fire lid of a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of the fire lid of the first embodiment of the present invention taken along another section;
FIG. 5 is a cross-sectional view of a fire lid of a second embodiment of the present invention;
FIG. 6 is a perspective view of a fire lid of a second embodiment of the present invention with the bottom facing upwards;
fig. 7 is an exploded view of a burner according to an embodiment of the present invention;
fig. 8 is a perspective view of a burner according to an embodiment of the present invention;
FIG. 9 is a perspective view of a fire lid base in accordance with one embodiment of the present invention;
FIG. 10 is an exploded view of a burner according to one embodiment of the present invention;
FIG. 11 is a perspective view of a burner according to an embodiment of the present invention;
FIG. 12 is a cross-sectional view of a burner according to a first embodiment of the present invention;
fig. 13 is a sectional view of a burner according to a second embodiment of the present invention.
Reference numerals:
1-a burner; 2-furnace end; 3-fire cover; 4-fire cover base; 5-a burner base; 10-inner ring cover part; 11-a first recess; 12-a second recess; 13-inner ring air mixing chamber; 14-fire lid positioning hole; 15-a connecting part; 16-an air outlet; 20-an outer annular cover portion; 21-outer ring depression; 23-outer ring gas mixing chamber; 40-a barrel part; 41-inner ring gas inlet; 42-outer ring gas inlet; 43-air guide groove; 44-outer annular wall; 45-surrounding baffle parts; 46-air inlet; 47-a groove; 48-fire lid location posts; 51-inner ring injection system; 52-outer ring injection system; 53-thermocouple; 54-an ignition needle; 100-wall part; 101-a first air outlet; 102-a second outlet port; 103-connecting channel; 104,203-connection holes; 150-a connecting trough; 201, 202-outer ring outlet; 420-gas separation part; 511-inner ring gas nozzle; 512-inner ring ejector pipe; 513-an inner ring voltage stabilization cavity; 521-outer ring gas nozzle; 522-outer ring injection pipe; 523-outer ring voltage stabilization cavity; 42a,42b,42 c-gas separation ports; 100 a-an extension; 101a,101b,101c,101 d-outlet holes.
[ detailed description ] embodiments
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
First, referring to fig. 1 to 4, fig. 1 is a perspective view of a fire cover according to a first embodiment of the present invention; FIG. 2 is a perspective view of the fire lid of the first embodiment of the present invention with the bottom portion facing upward; FIG. 3 is a cross-sectional view of a fire lid of a first embodiment of the present invention; fig. 4 is a cross-sectional view of the fire lid of the first embodiment of the present invention taken along another section. The fire cover 3 of the burner for the gas cooker of the present embodiment is an integrally formed integral piece, and the fire cover 3 includes an inner annular cover portion 10 and an outer annular cover portion 20.
The inner ring cover part 10 is provided with a first concave part 11 at the bottom, the first concave part 11 is used for accommodating the gas supplied by the inner ring gas nozzle, and the inner ring cover part 10 is provided with a first gas outlet 101 communicated with the first concave part 11. The first air outlet 101 includes an air outlet groove which is an annular groove extending circumferentially along the outer circumferential surface of the inner annular cover portion 10, and a plurality of connection holes 104 communicating the air outlet groove with the first recess portion 11 are provided in the air outlet groove.
The outer annular cover part 20 surrounds the outer periphery of the inner annular cover part 10, the bottom of the outer annular cover part 20 is concave inwards to form an outer annular concave part 21, the outer annular concave part 21 is used for containing gas supplied by the outer annular gas nozzle, and in the using state of the fire cover 3, the first concave part 11 is separated from the outer annular concave part 21. The outer ring cover portion 20 is provided with an outer ring air outlet 201 and an outer ring air outlet 202 which are communicated with the outer ring depressed portion 21. Wherein, outer ring gas outlet 201 includes a plurality of ventholes that distribute along outer ring lid 20 circumference, and outer ring gas outlet 202 includes a venthole that extends along outer ring lid 20 circumference, is provided with a plurality of connecting holes 203 with venthole and outer ring depressed part 21 intercommunication in the venthole.
The inner ring cover portion 10 is further provided with a second air outlet 102, and the second air outlet 102 includes a plurality of air outlet holes. The first air outlet 101 and the second air outlet 102 are formed on the same smooth surface of the inner annular cover portion 10, i.e., the outer circumferential surface 10 b. Moreover, the outer edge of the vertical projection of the first air outlet 101 and the outer edge of the vertical projection of the second air outlet 102 of the present embodiment are located on the same circumference. In the use state of the fire cover 3, the second air outlet 102 is communicated with the outer ring recessed portion 21. Specifically, the bottom of the inner annular cover portion 10 of the present embodiment further has a second concave portion 12, and the second concave portion 12 is disposed on the periphery of the first concave portion 11. In the use state of the fire cover 3, the second concave portion 12 is isolated from the first concave portion 11, the second concave portion 12 is communicated with the outer ring concave portion 21, and the second air outlet 102 is communicated with the second concave portion 12. Thus, the second gas outlet 102 communicates with the outer ring recess 21 in the use state of the fire lid.
Referring to fig. 2 and 3, the inner ring cover 10 includes a wall 100 surrounding the first recess 11, the wall 100 has a plurality of connecting passages 103 connecting the second air outlet 102 and the second recess 12, and the connecting passages 103 are a plurality of connecting holes circumferentially distributed along the wall 100. The wall body portion 100 further includes a protruding extension portion 100a, and the extension portion 100a is provided to separate the first recess portion 11 from the second recess portion 12 in the use state of the fire lid 3, in this regard, as will be described later.
In this embodiment, the total area of all the first air outlets 101 on the fire cover 3 is smaller than the total area of all the second air outlets 102. Thus, the flames burning at the second outlet port 102 supplied with air from the outer ring gas nozzle constitute main flames at the inner ring cover portion 10, and the flames burning at the first outlet port 101 supplied with air from the inner ring gas nozzle constitute auxiliary flames, which serve to stabilize the combustion of the main flames. The fire cover of the embodiment can burn more fully when flame exists on the outer annular cover part, the heat efficiency can reach 69-70%, and the CO emission of the fire cover burning can be reduced; at the minimum fire of the fire cover, the power is sufficiently small.
The fire lid 3 further comprises at least one connecting portion 15 connected between the outer and inner ring cover portions 20, 10, the connecting portion 15 constituting a component of an air guide channel for communicating the outer ring recess 21 with the second recess 12 in the use state of the fire lid 3. The fire cover 3 of the present embodiment includes three coupling portions 15, and each coupling portion 15 includes a coupling groove 150, the coupling groove 150 communicating the outer ring recess 21 with the second recess 12.
Referring to fig. 4 again, the first air outlet 101 further includes an air outlet hole 101a corresponding to the thermocouple, an air outlet hole 101c above the thermocouple, an air outlet hole 101b corresponding to the ignition needle, and an air outlet hole 101d above the ignition needle, so as to ensure the ignition performance and the safety protection performance of the fire cover 3.
A fire lid according to a second embodiment of the present invention will be described as shown in fig. 5 and 6, wherein fig. 5 is a sectional view of the fire lid according to the second embodiment of the present invention; FIG. 6 is a perspective view of a fire lid of a second embodiment of the present invention with the bottom portion facing upward. In this embodiment, the same reference numerals as those of the fire cover of the first embodiment correspond to the same or similar components, and the same or similar functions are also provided. Unlike the first embodiment, the fire cover of the present embodiment has a total area of all the first air outlets 101 larger than that of all the second air outlets 102. The first air outlet 101 includes a plurality of air outlet holes circumferentially distributed along the inner annular cover portion 10, and the second air outlet 102 includes an air outlet groove that is an air outlet groove extending circumferentially along the outer circumferential surface of the inner annular cover portion 10. The wall portion 100 is provided with a plurality of connecting channels 103 for connecting the second air outlet 102 and the second recessed portion 12, and the plurality of connecting channels 103 are a plurality of connecting holes distributed along the circumferential direction of the wall portion 100 so as to connect the air outlet grooves and the second recessed portion 12. Although the thermal efficiency of the fire cover of the embodiment is lower than that of the first embodiment, compared with the existing fire cover, the fire cover can be more sufficiently combusted when flame exists on the outer annular cover part, and the CO emission of the combustion of the fire cover can be reduced; when the fire cover has the minimum fire, the power is lower than that of the existing fire cover.
The above are only two exemplary examples of the invention, and further embodiments of the fire lid may be derived by modifications of some features and combinations between different features. For example, in another embodiment of the present invention, the inner ring cover portion includes an inner ring seat portion and a top cover detachably covering the inner ring seat portion, and the outer ring cover portion, the connecting portion and the inner ring seat portion form an integrally formed integral piece.
Fig. 7 and 8 also show a burner head 2 of a gas range burner, wherein fig. 7 is an exploded view of the burner head according to an embodiment of the present invention; fig. 8 is a perspective view of a burner according to an embodiment of the present invention. The furnace end 2 comprises a fire cover base 4 and a fire cover 3, and the fire cover 3 is detachably arranged on the fire cover base 4. The fire lid 3 may be as described in the previous embodiments. When the fire cover 3 is covered on the fire cover base 4, the first concave part 11 is matched with the fire cover base 4 to form an inner ring air mixing chamber 13 (see fig. 12 and 13), the outer ring concave part 21 is matched with the fire cover base 4 to form an outer ring air mixing chamber 23, and the outer ring air mixing chamber 23 is isolated from the inner ring air mixing chamber 13.
Referring to fig. 9 with reference to fig. 12 or 13, fig. 9 is a perspective view of a fire cover base according to an embodiment of the invention. The fire cover base 4 of the embodiment includes an inner ring gas inlet 41 and an outer ring gas inlet 42, the inner ring gas inlet 41 is used for allowing the gas supplied by the inner ring gas nozzle to enter the burner 2, and the outer ring gas inlet 42 is used for allowing the gas supplied by the outer ring gas nozzle to enter the burner 2. More specifically, the central area of the fire cover base 4 has a cylindrical body 40, the inlet of the cylindrical body 40 forms an inner ring gas inlet 41, and in the use state of the burner 2, the cylindrical body 40 and the portion surrounding the first recess 11 cooperate to form an inner ring gas mixing chamber 13, that is, the cylindrical body 40 and the wall 100 are in seamless butt joint to form the inner ring gas mixing chamber 13, and it can be said that the cylindrical body 40 and the extension 100a are in seamless butt joint to form the inner ring gas mixing chamber 13. Thereby, the first recess 11 is isolated from the outer ring recess 21 in the use state of the fire cover 3.
The fire lid base 4 includes an outer annular wall 44 and a plurality of air inlets 46 located inside the outer annular wall 44. As shown in fig. 1,2 and 6, the fire cover 3 is provided with a plurality of air outlets 16 corresponding to the plurality of air inlets 46, respectively, the air inlets 46 and the air outlets 16 cooperate to form an air channel, and air enters the air channel from below the burner 2 to supplement secondary air for the combustion of the burner 2. The fire lid base 4 has a plurality of enclosure parts 45 arranged at intervals, each enclosure part 45 encloses one air inlet 46, and an air guide groove 43 is formed between two adjacent enclosure parts 45. A groove 47 is formed between the surrounding baffle part 45 and the outer ring wall 44, and the air guide groove 43 is communicated with the outer ring fuel gas inlet 42 and the groove 47. When the fire cover 3 is covered on the fire cover base 4, the groove 47 and the outer ring depressed part 21 are matched to form an outer ring air mixing chamber 23 (see fig. 12 and 13), the air guide groove 43 and the connecting groove 150 on the fire cover 3 are matched to form an air guide channel, and the air guide channel is communicated with the outer ring gas inlet 42 and the outer ring air mixing chamber 23. And the second recess 12 of the fire cover 3 faces the outer ring gas inlet 42. Therefore, in the using state of the burner, after the gas enters from the outer ring gas inlet 42, the second concave part 12 contains the gas, and the gas enters into the outer ring gas mixing chamber 23 from the gas guide channel.
The fire lid base 4 of this embodiment is integrated into one piece, adopts the brass material the same as fire lid 3, forms through the mode manufacturing of forging and pressing shaping. In order to reduce tolerance accumulation during the manufacturing process and prevent the fire lid 3 from being covered on the fire lid base 4 and then unable to form an inner ring air mixing chamber and an outer ring air mixing chamber which are separated, for example, air leakage at the matching part of the barrel 40 and the extension part 100a, the upper surface of the barrel 40 and the upper surface of the part forming the air guide groove 43 are located on the same plane, that is, the upper surface of the barrel 40 and the upper surface of the enclosure part 45 are located on the same plane.
The fire lid base 4 further comprises a plurality of flow dividing portions 420, the flow dividing portions 420 being connected between the outer wall of the barrel portion 40 and the wall surrounding the outer ring gas inlet 42. The outer ring gas inlet 42 is divided into a plurality of gas dividing ports by the gas dividing portion 420, and each gas guiding groove 43 corresponds to at least one gas dividing portion 420. As shown in fig. 9, in the present embodiment, the fire lid base 4 includes three flow dividing portions 420, the outer ring gas inlet 42 is divided into three gas dividing ports 42a,42b and 42c by the flow dividing portions 420, and the gas flow of the outer ring gas inlet 42 is divided into three. Each air guide groove 43 corresponds to one of the branching portions 420, and each branching portion 420 faces a central position of one air guide groove 43. It can be said that the branching portions 420 extend linearly, and the extending direction of each branching portion 420 coincides with the symmetry axis of the corresponding air guide groove 43.
After the flow dividing portion 420 is provided, the extending direction of the flow dividing portion 420 is perpendicular to the gas flow direction at the outer ring gas inlet 42. Thus, a part of the gas from the gas distributing port 42a and a part of the gas from the gas distributing port 42b are mixed into this gas guiding groove 43 right above in fig. 9 and then into the recess 47. Of course, this is described from one side of the fire cover base 4, and actually, in the use state of the burner, a part of the gas coming out from the gas distributing port 42a is mixed with a part of the gas coming out from the gas distributing port 42b, and enters the outer ring gas mixing chamber 23 through the gas guiding channel corresponding to the gas guiding groove 43 right above in fig. 9. For avoiding redundancy, the following description will be made only in terms of the fire lid base 4. A part of the gas discharged from the gas distributing port 42b and a part of the gas discharged from the gas distributing port 42c are mixed with each other, and enter one of the gas guiding grooves 43 on the right side in fig. 9, and then enter the recess 47. A part of the gas discharged from the gas distributing port 42c and a part of the gas discharged from the gas distributing port 42a are mixed with each other, and enter one of the gas guiding grooves 43 on the left side in fig. 9, and then enter the recess 47. Therefore, the diversion part 420 is arranged to perform primary diversion, which is equivalent to adding resistance at the outer ring gas inlet 42 to perform the functions of reducing pressure and flow speed of the entering gas flow. Each air guide groove 43 corresponds to one flow splitting part 420, which is equivalent to secondary flow splitting, and the multiple air flows which are split in the front are split again and then are converged into the air guide groove 43, so that the gas flow is split twice before entering the outer ring gas mixing chamber, and the gas entering the outer ring gas mixing chamber 23 is more uniform.
In this embodiment, the fire lid base 4 includes an inner ring fuel gas flow passage and an outer ring fuel gas flow passage, the barrel portion 40 encloses the inner ring fuel gas flow passage, and the outer ring fuel gas flow passage includes an outer ring fuel gas inlet 42, an air guide groove 43 and a groove 47. In the use state of the fire cover base 4, the inner ring fuel gas flow channel and the outer ring fuel gas flow channel are mutually isolated.
It should be added that the fire cover matched with the fire cover base 4 of the embodiment shown in fig. 9 may be the fire cover 3 described in the previous embodiment, or may be any fire cover matched with the fire cover. Of course, the fire lid base matched with the fire lid 3 of the embodiment shown in fig. 1 to 6 may be the fire lid base shown in fig. 9, or may be any fire lid base matched with the fire lid base.
It should be further mentioned that the fire lid base 4 of the present embodiment is provided with fire lid positioning posts 48, and the fire lid 3 is provided with fire lid positioning holes 14 corresponding to the fire lid positioning posts 48, as shown in fig. 2 and 6. The fire lid locating hole is arranged on the fire lid base in the prior art, so that after overflowing or dirt enters the fire lid base, the overflowing or dirt easily falls into the fire lid locating hole and fills in a certain height, the fire lid locating column cannot be completely inserted in place, so that the fire lid base cannot be tightly jointed when being arranged, gaps leak air, the gaps leak air can form flames, and the fire lid can be burnt to deform when being used for a long time. This embodiment can avoid above-mentioned problem, even there is overflow or dirty entering fire lid base, also can not cause any influence to the fixed of fire lid.
In addition, the present invention also discloses a burner 2 of a gas stove burner, which comprises an outer ring gas mixing chamber 23 and an inner ring gas mixing chamber 13 which are separated, wherein the outer ring gas mixing chamber 23 is used for accommodating gas supplied by an outer ring gas nozzle 521 (shown in fig. 12 and 13), and the inner ring gas mixing chamber 13 is used for accommodating gas supplied by an inner ring gas nozzle 511. The burner 2 comprises an outer ring air outlet 201 and an outer ring air outlet 202 which are distributed in an outer ring area of the burner 2, the outer ring air outlet 201 and the outer ring air outlet 202 are communicated with an outer ring air mixing chamber 23, the burner 2 further comprises a first air outlet 101 and a second air outlet 102 which are distributed in an inner ring area of the burner 2, the first air outlet 101 is communicated with the inner ring air mixing chamber 13, and the second air outlet 102 is communicated with the outer ring air mixing chamber 23. In one embodiment, the burner 2 is assembled separately, for example, the burner described in the previous embodiment, which is not described herein again. In another embodiment, the burner 2 is an integral part, and the whole burner can be integrally formed by existing machining processes.
The invention presents a burner 1 for a gas cooker comprising a burner 2 according to any of the embodiments described above. Fig. 10 and 11 show an exploded view of a burner according to an embodiment of the present invention in fig. 10; fig. 11 is a perspective view of a burner according to an embodiment of the present invention.
The burner 1 comprises a burner base 5, and the burner 2 is detachably placed on the burner base 5. The burner base 5 comprises an inner ring injection system 51, an outer ring injection system 52, a thermocouple 53 and an ignition needle 54. The inner ring injection system 51 comprises an inner ring gas nozzle 511, an inner ring injection pipe 512 connected with the inner ring gas nozzle 511, and an inner ring pressure stabilizing cavity 513 connected with the inner ring injection pipe 512; the outer ring injection system 52 comprises an outer ring gas nozzle 521, an outer ring injection pipe 522 connected with the outer ring gas nozzle 521 and an outer ring pressure stabilizing cavity 523 connected with the outer ring injection pipe 522, wherein the inner ring pressure stabilizing cavity 513 is communicated with the inner ring gas mixing chamber 13 or the first recessed part 11, and the outer ring pressure stabilizing cavity 523 is communicated with the outer ring gas mixing chamber 23 or the outer ring recessed part 21. After the burner 1 is assembled, the thermocouple 53 corresponds to the outlet hole 101a, and the ignition pin 54 corresponds to the outlet hole 101 b.
Fig. 12 is a sectional view of the burner of the first embodiment of the present invention, as shown in fig. 12, and fig. 12 does not employ a general sectional view taken along a section plane in order to show more structural features. The burner 1 of the present embodiment employs the fire lid 3 described in the first embodiment. In some related descriptions, referring to the previous description, the fire lid 3 includes an inner annular lid portion 10 and an outer annular lid portion 20. The inner ring cover part 10 has a first concave part 11 at the bottom, and a wall part 100 surrounding the first concave part 11 is matched with the barrel part 40 of the fire cover base 4 to form an inner ring air mixing chamber 13. The gas supplied by the inner ring gas nozzle 511 and the primary air sucked by the front end of the inner ring injection pipe 512 enter the inner ring injection pipe 512, then reach the inner ring pressure stabilizing cavity 513, and then enter the inner ring gas mixing chamber 13 from the inner ring gas inlet 41.
The outer annular cover part 20 surrounds the periphery of the inner annular cover part 10, the bottom of the outer annular cover part 20 is concave inwards to form an outer annular concave part 21, and the outer annular concave part 21 is matched with the groove 47 on the fire cover base 4 to form an outer annular air mixing chamber 23. The fuel gas supplied by the outer ring fuel gas nozzle 521 and the primary air sucked from the front end of the outer ring injection pipe 522 enter the outer ring injection pipe 522, then reach the outer ring pressure stabilizing cavity 523, and then enter the outer ring gas mixing chamber 23 from the outer ring fuel gas inlet 42. The outer ring cover portion 20 is provided with an outer ring air outlet 201 and an outer ring air outlet 202 which are communicated with the outer ring depressed portion 21.
The bottom of the inner annular cover portion 10 further has a second concave portion 12, and the second concave portion 12 is disposed at the periphery of the first concave portion 11. The second concave portion 12 is communicated with the outer ring gas inlet 42 and also communicated with the outer ring gas mixing chamber 23.
The inner ring cover portion 10 is provided with a first air outlet 101 communicating with the first recess portion 11. The first air outlet 101 includes an air outlet groove. The inner ring cover portion 10 is further provided with a second air outlet 102 communicated with the second recess, and the second air outlet 102 includes a plurality of air outlet holes. The total area of all the first air outlets 101 on the fire cover 3 is smaller than the total area of all the second air outlets 102.
Fig. 13 is a sectional view of a burner according to a second embodiment of the present invention, as shown in fig. 13. The burner 1 of the present embodiment employs the fire lid 3 described in the second embodiment. Some relevant description is made with reference to the previous description. In this embodiment, the same reference numerals as those of the burner of the first embodiment correspond to the same or similar components, and the same or similar functions are also provided. Unlike the first embodiment, the burner of the present embodiment uses a fire cover in which the total area of all the first air outlets 101 is greater than the total area of all the second air outlets 102. The first air outlet 101 includes a plurality of air outlet holes circumferentially distributed along the inner annular cover portion 10, and the second air outlet 102 includes air outlet grooves.
Finally, the present invention also provides a gas range including the burner 1 for a gas range according to any one of the above embodiments.
The various embodiments of the individual components described in connection with fig. 1 to 13 may be combined with each other in any given way to achieve the advantages of the invention.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (18)
1. A fire cover base (4) of a burner (1) for a gas stove comprises an outer ring gas inlet (42) and a groove (47) for accommodating gas, wherein the outer ring gas inlet (42) is used for allowing the gas supplied by an outer ring gas nozzle (521) to enter the fire cover base (4), the fire cover base (4) further comprises a plurality of gas guide grooves (43), and the gas guide grooves (43) are communicated with the groove (47) and the outer ring gas inlet (42),
still include a plurality of reposition of redundant personnel portions (420), outer loop gas inlet (42) quilt a plurality of gas distribution openings (42a, 42b,42 c) are separated into to reposition of redundant personnel portion (420), every air guide groove (43) correspond at least one reposition of redundant personnel portion (420), every reposition of redundant personnel portion (420) just to one the central point of air guide groove (43) puts.
2. The fire cover base (4) of a burner (1) for a gas cooker according to claim 1, comprising a plurality of air inlets (46), wherein said fire cover base (4) has a plurality of spaced-apart enclosures (45), each of said enclosures (45) enclosing one of said air inlets (46), and wherein said air-guiding channel (43) is formed between two adjacent enclosures (45).
3. The fire lid base (4) of a burner (1) for a gas cooker according to claim 2, comprising a surrounding outer annular wall (44), said apron (45) being located inside said outer annular wall (44), said groove (47) being formed between said outer annular wall (44) and said apron (45).
4. The fire cover base (4) of a burner (1) for a gas cooker according to any of claims 1 to 3, wherein each of said air-guide slots (43) corresponds to one of said flow-dividing portions (420).
5. The fire cover base (4) of a burner (1) for a gas cooker according to any of claims 1 to 3, wherein said branches (420) extend in a straight line, the extension direction of each branch (420) coinciding with the symmetry axis of the corresponding air guide slot (43).
6. The fire cover base (4) of a burner (1) for a gas cooker according to any of claims 1 to 3, wherein said diverging portion (420) extends in a direction perpendicular to the direction of gas flow at said outer annular gas inlet (42).
7. The fire lid base (4) of a burner (1) for a gas cooker according to any of claims 1 to 3, comprising three diverging portions (420), the outer ring gas inlet (42) being divided into three diverging ports (42a, 42b,42 c).
8. The fire cover base (4) of a burner (1) for a gas cooker according to any one of claims 1 to 3, further comprising an inner ring gas inlet (41), said inner ring gas inlet (41) being adapted to allow gas supplied by an inner ring gas nozzle (511) to enter said burner (1), said fire cover base (4) having a barrel (40), an inlet of said barrel (40) constituting said inner ring gas inlet (41), said splitter (420) being connected between an outer wall of said barrel (40) and a wall surrounding said outer ring gas inlet (42).
9. The fire cover base (4) of a burner (1) for a gas cooker according to claim 8, comprising an inner ring gas flow channel and an outer ring gas flow channel, said barrel portion (40) enclosing said inner ring gas flow channel, said outer ring gas flow channel comprising said outer ring gas inlet (42), said air guide groove (43) and said groove (47); in the use state of the fire cover base (4), the inner ring gas flow channel and the outer ring gas flow channel are mutually isolated.
10. The fire cover base (4) of a burner (1) for a gas range according to claim 8, wherein an upper surface of the cylinder portion (40) is positioned on the same plane as an upper surface of a portion where the air guide groove (43) is formed.
11. The fire cover base (4) of a burner (1) for a gas cooker according to any of claims 1 to 3, characterised in that it is an integral piece.
12. Burner head (2) of a burner (1) for gas cookers, characterized in that it comprises a fire cover base (4) according to any one of the preceding claims.
13. Burner head (2) of a burner (1) for a gas cooker according to claim 12, comprising a fire cover (3), said fire cover (3) being removably applied to said fire cover base (4).
14. The burner (2) of the burner (1) for a gas cooker as claimed in claim 13, wherein said burner cap (3) comprises an inner ring cap portion (10) and an outer ring cap portion (20) surrounding the outer periphery of said inner ring cap portion (10), the bottom of said outer ring cap portion (20) is recessed inwardly to form an outer ring recessed portion (21), said outer ring recessed portion (21) cooperates with said groove (47) to form an outer ring air mixing chamber (23), said outer ring air mixing chamber (23) is used for accommodating the gas supplied by said outer ring gas nozzle (521), said outer ring cap portion (20) is provided with an outer ring gas outlet (201, 202) communicating with said outer ring air mixing chamber (23); inner ring lid (10) bottom has the first depressed part (11) of indent, first depressed part (11) with fire lid base (4) cooperation forms inner ring gas mixing chamber (13), inner ring gas mixing chamber (13) are used for holding the gas by inner ring gas nozzle (511) supply, be equipped with the intercommunication on inner ring lid (10) first gas outlet (101) of inner ring gas mixing chamber (13), wherein, still be equipped with second gas outlet (102) on inner ring lid (10), second gas outlet (102) with outer ring gas mixing chamber (23) are linked together.
15. The burner (2) of a gas cooktop burner (1) according to claim 14, wherein the first air outlet (101) and the second air outlet (102) are formed on the same smoothly extending surface on the inner ring cover portion (10).
16. The burner (2) of a burner (1) for a gas cooker as claimed in claim 14, wherein said burner cap (3) further comprises a connecting portion (15) connected between said outer annular cap portion (20) and said inner annular cap portion (10), said connecting portion (15) cooperating with said air guide slot (43) to form an air guide channel, said air guide channel communicating said outer annular gas inlet (42) with said outer annular gas mixing chamber (23).
17. Burner (1) for gas cookers, characterized in that it comprises a burner (2) according to any one of claims 13 to 16.
18. A gas burner, characterized in that it comprises a burner (1) for a gas burner according to claim 17.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710337617.6A CN108870395B (en) | 2017-05-15 | 2017-05-15 | Fire cover base of combustor for gas stove, furnace end, combustor and gas stove |
| EP18172364.4A EP3404325B1 (en) | 2017-05-15 | 2018-05-15 | Burner cap base for burner of a gas cooktop, burner, and gas cooktop |
| EP18172353.7A EP3404324B1 (en) | 2017-05-15 | 2018-05-15 | Burner cap for burner of a gas cooktop, burner head, burner, and gas cooktop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710337617.6A CN108870395B (en) | 2017-05-15 | 2017-05-15 | Fire cover base of combustor for gas stove, furnace end, combustor and gas stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108870395A CN108870395A (en) | 2018-11-23 |
| CN108870395B true CN108870395B (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710337617.6A Active CN108870395B (en) | 2017-05-15 | 2017-05-15 | Fire cover base of combustor for gas stove, furnace end, combustor and gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108870395B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720822B (en) * | 2019-03-21 | 2021-05-18 | 宁波方太厨具有限公司 | Burner for gas stove |
| CN112815314B (en) * | 2021-01-20 | 2021-10-15 | 佛山市顺德区美的洗涤电器制造有限公司 | Burner and gas stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804634Y (en) * | 2005-07-19 | 2006-08-09 | 胡志学 | Burner having balanced air distribution |
| CN201885226U (en) * | 2010-12-06 | 2011-06-29 | 广东好迪生活电器有限公司 | Top-intake three-fire-ring stove burner |
| CN203099830U (en) * | 2012-11-30 | 2013-07-31 | 海尔集团公司 | Combustor of gas stove |
| CN106090904A (en) * | 2016-06-06 | 2016-11-09 | 广东美的厨房电器制造有限公司 | Air distribution disk and burner |
| CN205782913U (en) * | 2016-06-16 | 2016-12-07 | 绍兴市乐格电器有限公司 | A kind of burner |
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2017
- 2017-05-15 CN CN201710337617.6A patent/CN108870395B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804634Y (en) * | 2005-07-19 | 2006-08-09 | 胡志学 | Burner having balanced air distribution |
| CN201885226U (en) * | 2010-12-06 | 2011-06-29 | 广东好迪生活电器有限公司 | Top-intake three-fire-ring stove burner |
| CN203099830U (en) * | 2012-11-30 | 2013-07-31 | 海尔集团公司 | Combustor of gas stove |
| CN106090904A (en) * | 2016-06-06 | 2016-11-09 | 广东美的厨房电器制造有限公司 | Air distribution disk and burner |
| CN205782913U (en) * | 2016-06-16 | 2016-12-07 | 绍兴市乐格电器有限公司 | A kind of burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108870395A (en) | 2018-11-23 |
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