CN112856409B - Burner for gas stove - Google Patents
Burner for gas stove Download PDFInfo
- Publication number
- CN112856409B CN112856409B CN202110018697.5A CN202110018697A CN112856409B CN 112856409 B CN112856409 B CN 112856409B CN 202110018697 A CN202110018697 A CN 202110018697A CN 112856409 B CN112856409 B CN 112856409B
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- China
- Prior art keywords
- air
- outer ring
- wall
- 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
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
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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
- 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
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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
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
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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 burner for a gas stove, which comprises a base and an outer ring fire cover arranged on the base, and is characterized in that: the outer ring fire cover comprises an annular body, and the body comprises a middle ring area and an outer ring area which are concentrically arranged at intervals; the middle ring area is provided with middle fire holes which are communicated with the outer ring gas mixing chamber and are formed at intervals along the top direction; the outer ring area is provided with outer fire holes communicated with the outer ring gas mixing chamber at intervals along the periphery of the body, and the base is provided with outer gas inlets for external air to flow into the outer ring gas mixing chamber on the outer side wall or the bottom wall.
Description
Technical Field
The invention relates to the technical field of household kitchen utensils, in particular to a burner for a gas stove.
Background
At present, in the prior art, a blower type household gas stove burner comprises a fan and a burner, but is limited to limited supplement of primary air in a combustion process, secondary air cannot be effectively supplemented, the secondary air supplement is completely adjusted by the outside of the burner, the adjustment is influenced by the structure of the whole gas stove, and the problems of insufficient combustion, overproof CO in smoke, low heat efficiency and the like easily occur. Therefore, as a patent number ZL201120141967.3 (No. 202109479U) discloses a blast type household gas stove burner, which comprises a controller, a fan and a burner, wherein the burner comprises a stove base, a distributor, an air distributor, a gas distributor, a guide pipe, an injection mixing pipe and a nozzle, the distributor is provided with a combustion fire hole and a secondary air through hole, one air pipe is connected with the installation position of a burner nozzle and supplies primary air, and the other air pipe is connected with the upper part of a burner and supplies secondary air, so that the primary air coefficient and the secondary air distribution in the gas combustion process are directly controlled to ensure the mixing uniformity of gas and air. However, the secondary air of the burner of the gas stove is uniformly distributed on the distributor and is only suitable for the burner with complete premixed combustion, but the heat load is small and is difficult to meet the cooking requirement of China, while the primary air coefficient of the existing atmospheric gas stove burner is generally 0.4-0.7, the premixed air cannot reach the air amount required by complete combustion, and various factors are added, certain secondary air supplement is required, and in order to reduce the emission of CO, the secondary air supplement is required to be as sufficient as possible. At present, the gas stove burner replenishes air in various modes, generally has the mode of side air intake and lower air intake, and the mode of side air intake is opened the side air intake at the lateral part of air mixing chamber promptly, and the outside air carries out the secondary air through this side air intake and supplements, and the mode of lower air intake is opened the air intake down at the base seat promptly, and the air of gas-cooker below carries out the secondary air through this air intake down and supplements. Although the side air intake mode has the advantages of small intake resistance and large intake air amount, the existing side air intake combustor still has the following problems: due to the injection effect of combustion hot air flow, secondary air is sucked by the inner fire cover and the outer fire cover through the air mixing chamber side air inlet, the heat load of the inner ring is small, the coefficient of primary air is higher than that of the outer ring, the sucked secondary air is often excessive, the secondary air sucked by the middle ring fire hole of the outer fire cover is insufficient, and further improvement is needed for reasonably distributing the secondary air and simultaneously realizing the sufficient combustion of the inner ring and the outer ring.
Disclosure of Invention
The present invention is directed to provide a burner for a gas range, which can supply lateral secondary air to the burner smoothly and sufficiently, in view of the above-mentioned prior art.
The second technical problem to be solved by the present invention is to provide a burner for a gas stove, which can reasonably distribute secondary air of side air intake, in view of the above-mentioned current state of the art.
The third technical problem to be solved by the present invention is to provide a burner for a gas stove, which has a good thick/thin flame forming effect, in view of the above-mentioned current state of the art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: this a combustor for gas-cooker including:
a base;
the outer ring fire cover is arranged on the base, and an outer ring gas mixing chamber is formed between the outer ring fire cover and the base;
the method is characterized in that: the outer ring fire cover comprises an annular body, and the body comprises a middle ring area and an outer ring area which are concentrically arranged at intervals; the middle ring area is provided with middle fire holes which are communicated with the outer ring gas mixing chamber and are formed at intervals along the top direction; the outer ring area is provided with outer fire holes communicated with the outer ring air mixing chamber at intervals along the periphery of the body, the outer side wall or the bottom wall of the base is provided with outer air inlets for external air to flow into the outer ring air mixing chamber, and the outer air inlets are connected with an external air supply part.
In order to solve the second technical problem, preferably, the body of the outer ring fire cover includes an annular top wall, an inner ring wall extending downward from an inner side edge of the annular top wall, and an outer ring wall extending downward from an outer side edge of the annular top wall, the annular top wall is partially recessed downward to form an air supply groove for separating the middle ring area and the outer ring area, and air supply holes communicated with the outside air are arranged at intervals at the bottom of the air supply groove. This tonifying qi hole can make the burning in the well ring district of outer loop fire lid more abundant, and the tonifying qi groove still plays the effect of separating well ring district and outer ring district simultaneously, enables the secondary air rational distribution of side air inlet.
In order to solve the third technical problem, preferably, an upper flame stabilizing hole located above the outer fire holes is formed in a portion of the annular top wall corresponding to the outer ring region along the circumferential direction, secondary air supplementing holes corresponding to the respective outer fire holes are formed in the bottom of the outer ring wall every other one or more outer fire holes, and the secondary air supplementing holes are arranged in an intersecting manner with the outer fire holes. The upper flame stabilizing holes can promote flame stabilization of the outer fire holes, and the secondary air supplementing holes can be used for independently supplementing secondary air at intervals of one or more outer fire holes, so that the amount of supplementing secondary air at intervals of one or more outer fire holes is changed, and then thick-thin combustion is realized.
In order to realize the natural injection combustion of the inner ring fire cover, the middle ring area and the outer ring area of the outer ring fire cover are in a natural injection and air blast combined air supplement mode, preferably, the base is further provided with the inner ring fire cover arranged on the inner periphery of the outer ring air mixing chamber, the inner ring air mixing chamber is formed between the inner ring fire cover and the base, the base is provided with an inner air inlet hole for external air to flow into the inner ring air mixing chamber on the corresponding outer side wall or bottom wall, the inner air inlet hole is connected with an inner injection pipe, the air inlet end of the inner injection pipe is suitable for being provided with an inner air inlet part capable of exposing the air supply part, and the air inlet end of the outer air inlet hole comprises a first outer air inlet part and a second outer air inlet part, wherein the first outer air inlet part is exposed out of the air supply part, and the second outer air inlet part is communicated with the air supply part. Because the mode that the well ring district of outer loop fire lid and outer ring district combined with the nature and penetrated and blast air, can carry out the air supplementation according to burning operating mode alternative or the two simultaneously.
In order to achieve natural injection of the inner injection pipe and meet the requirement that the middle ring area and the outer ring area of the outer ring fire cover are combined with natural injection and air blast modes, and correspondingly, the air supply part needs to have structural adaptability, preferably, the air supply part comprises an air blower and an air outlet chamber communicated with an air outlet end of the air blower, and the air outlet chamber comprises a first side wall directly connected with the air outlet end of the air blower, a second side wall arranged opposite to the first side wall, a third side wall for the inner air inlet part of the inner injection pipe to penetrate through, and a fourth side wall for the inner air inlet part of the inner injection pipe to penetrate through and arranged opposite to the third side wall.
In order to realize the connection of air feed portion and interior ejector tube and outer ejector tube, preferably, the air feed portion is still including the support that is the L type, wherein the support including with draw in the axle looks vertically first arm and second arm of ejector tube or outer ejector tube, first arm is connected draw in the pipe wall periphery of ejector tube, the second arm is connected draw the pipe wall periphery of ejector tube outward, still including with first arm and third lateral wall link to each other, with draw in the third arm that the axle looks parallels of ejector tube or outer ejector tube, with second arm and third lateral wall link to each other, with draw in the fourth arm that the axle looks parallels of ejector tube or outer ejector tube.
In order to realize the combination of the natural injection and blast modes in the middle ring area and the outer ring area of the outer ring fire cover, preferably, the third side wall is provided with first through holes arranged at intervals with the outer gas inlet part of the outer injection pipe, the peripheral wall of the first through hole is connected with the peripheral wall of the outer gas inlet part of the outer injection pipe through connecting rods, and a gap between the connecting rods forms a gas inlet channel for the air flowing out from the gas outlet end of the gas supply part to flow into the gas inlet end of the outer injection pipe.
In order to realize the thick and thin combustion of the outer fire hole of the outer ring fire cover, preferably, the third side wall is further provided with a second through hole for independently supplying air to the secondary air supplementing hole, and the second through hole is in fluid communication with the air outlet end of the air supply part.
The dense-lean combustion of the outer fire hole of the outer ring fire cover can be better realized by independently adjusting the blast volume in the supplementary secondary air chamber, preferably, the outer ring air mixing chamber is also independently provided with the supplementary secondary air chamber which is jointed with the outer ring wall of the body of the outer ring fire cover, and the supplementary secondary air chamber is communicated with the second through hole through a third connecting pipe.
In order to realize the independence of the air inlet passages of the secondary air supplementing chamber, the outer ring air mixing chamber and the inner ring air mixing chamber, preferably, a connecting piece is arranged between the outer ring air mixing chamber and the base, the connecting piece covers the base, the outer ring fire cover or the inner ring fire cover covers the connecting piece to form the outer ring air mixing chamber and the inner ring air mixing chamber, the connecting piece comprises a central tube body for supporting the inner ring fire cover, and a first partition plate and a second partition plate which are arranged from the central tube body to the outer circumference in sequence at intervals, the first partition plate is Z-shaped, and comprises a first partition part, a second partition part and a third partition part, wherein the first partition part is parallel to the central tube body, the third partition part is connected between the first partition part and the second partition part, the second partition plate is correspondingly L-shaped, and the second partition part comprises a fourth partition part and a fifth partition part, the fourth partition part is parallel to the third partition part, the bottom of the central pipe body is in fluid communication with the inner injection pipe, a first partition part of the first partition plate and the outer wall of the central pipe body form a first air inlet part communicated with the outer injection pipe and the outer ring air mixing chamber, a fourth partition part of the second partition plate and a third partition part of the first partition plate form a second air inlet part communicated with the third connecting pipe, and the second air inlet part is communicated with the secondary air supplementing chamber.
Further, a sixth partition part parallel to the third partition part extends towards the second partition part of the first partition plate at or near the top of the central pipe body, the sixth partition part is provided with a seventh partition part arranged parallel to the second partition part, the inner ring wall of the outer fire cover is jointed with the seventh partition part, the outer ring wall of the outer fire cover is jointly abutted against the second partition part and the fifth partition part, and the second partition part, the fifth partition part and the outer ring wall of the outer fire cover jointly enclose the secondary air supplementing chamber.
In order to realize the adjustment of the fire hole area of the outer fire hole of the outer ring fire cover, preferably, an adjusting ring for adjusting the opening area of the outer fire hole of the outer ring fire cover is tightly attached to the second partition part of the first partition plate, an adjusting hole is formed in the adjusting ring in one-to-one alignment with the outer fire holes, and an operation opening for operating the adjusting ring relative to the exposed operation part of the circumferential rotation of the outer ring fire cover is formed in the third partition part of the first partition plate.
In order to control the air inflow entering the second air inlet part of the secondary air supplementing chamber during the rich-lean combustion in the outer fire hole of the outer fire cover, preferably, an adjusting part capable of adjusting the air inflow of the second through hole is arranged at the downstream of the second through hole on the third connecting pipe.
Compared with the prior art, the outer ring fire cover has the advantages that the outer ring fire cover is provided with the middle ring area and the outer ring area, the two ring areas supply air through two air supply modes of natural injection and air blowing of the external air supply part, both the two ring areas can be fully combusted, and the outer ring fire cover is particularly suitable for the outer ring fire cover with the two ring fires.
Drawings
FIG. 1 is a schematic view of a burner according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an outer ring fire cover in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic structural diagram of a connector according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a schematic view of another angle of FIG. 1;
FIG. 7 is a schematic view of the structure at still another angle of FIG. 1;
FIG. 8 is a cross-sectional view of FIG. 7;
FIG. 9 is a cross-sectional view at another angle of FIG. 7;
FIG. 10 is a schematic structural diagram of a base in an embodiment of the invention;
FIG. 11 is a schematic view of the adjusting ring according to the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in FIGS. 1 to 11, the preferred embodiment of the present invention is shown. The burner for the gas stove of the embodiment comprises a base 1; the outer ring fire cover 2 is arranged on the base 1, and an outer ring gas mixing chamber 21 is formed between the outer ring fire cover 2 and the base 1, the outer ring fire cover 2 comprises an annular body, the body comprises a middle ring area 22 and an outer ring area 23 which are concentrically arranged at intervals, and middle fire holes 221 which are communicated with the outer ring gas mixing chamber 21 and are formed at intervals along the top direction are formed in the middle ring area 22; the outer fire hole 231 of intercommunication outer loop gas mixing chamber 21 is equipped with along the periphery interval of body on outer ring district 23, base 1 then sets up the outer inlet port 11 that supplies outside air inflow outer loop gas mixing chamber 21 on lateral wall or diapire, outer inlet port 11 is connected with outside air feed portion 3, this outer loop fire lid 2 has well ring district 22 and outer ring district 23, two ring districts are drawn the blast air dual mode air feed of penetrating and outside air feed portion 3 through nature, can make the two all can fully burn, especially be fit for having the outer loop fire lid 2 of two ring fires.
Specifically, as shown in fig. 2 and 3, the outer ring fire cover 2 includes a ring top wall 24, an inner ring wall 25 extending downward from an inner edge of the ring top wall 24, and an outer ring wall 26 extending downward from an outer edge of the ring top wall 24, the ring top wall 24 is partially recessed downward to form an air supply groove 27 for separating the middle ring area 22 and the outer ring area 23, air supply holes 271 communicated with the outside air are formed at the bottom of the air supply groove 27 at intervals, the air supply holes 271 enable the middle ring area 22 of the outer ring fire cover 2 to burn more fully, and the air supply groove 27 also plays a role in separating the middle ring area 22 and the outer ring area 23, so that the secondary air of the side air inlet can be distributed reasonably. The portion of the annular top wall 24 corresponding to the outer annular region 23 is circumferentially provided with upper flame stabilizing holes 241 located above the outer flame holes 231, the bottom of the outer annular wall 26 is provided with secondary air supplementing holes 261 corresponding to the respective outer flame holes 231 every other one or more outer flame holes 231, the secondary air supplementing holes 261 are intersected with the outer flame holes 231, wherein the upper flame stabilizing holes 241 can promote flame stabilization of the outer flame holes 231, and the secondary air supplementing holes 261 can supplement secondary air independently at intervals of one or more outer flame holes 231, so that the amount of secondary air supplemented every other one or more outer flame holes 231 is changed, and dense-lean combustion is realized. In order to realize the natural injection combustion of the inner ring fire cover 4, the middle ring area 22 and the outer ring area 23 of the outer ring fire cover 2 are in a natural injection and air blast combined air supplement mode, the base 1 is further provided with the inner ring fire cover 4 arranged on the inner periphery of the outer ring air mixing chamber 21, the inner ring air mixing chamber 41 is formed between the inner ring fire cover 4 and the base 1, the base 1 is provided with an inner air inlet hole 100 for external air to flow into the inner ring air mixing chamber 41 on the corresponding outer side wall or bottom wall, the inner air inlet hole 100 is connected with an inner injection pipe 5, the air inlet end of the inner injection pipe 5 is suitable for being provided with an inner air inlet part 51 capable of exposing the air supply part 3, and the air inlet end of the outer air inlet hole 11 comprises a first outer air inlet part 601 exposing the air supply part 3 and a second outer air inlet part 602 communicated with the air supply part 3. Because the middle ring area 22 and the outer ring area 23 of the outer ring fire cover 2 are combined with natural injection and blast modes, air can be supplemented alternatively or simultaneously according to the combustion working condition. In order to realize natural injection of the inner injection pipe 5, the middle ring area 22 and the outer ring area 23 of the outer ring fire cover 2 need to be combined with a natural injection and air blast mode, correspondingly, the air supply part 3 needs to have structural adaptability, the air supply part 3 comprises an air blower 300 and an air outlet chamber 32 communicated with the air outlet end of the air blower 300, and the air outlet chamber 32 comprises a first side wall 321 directly connected with the air outlet end of the air blower 300, a second side wall 322 arranged opposite to the first side wall 321, a third side wall 323 for the inner air inlet part 51 of the inner injection pipe 5 to penetrate, and a fourth side wall 324 for the inner air inlet part 51 of the inner injection pipe 5 to penetrate and arranged opposite to the third side wall 323.
Referring to fig. 6 and 7, in order to connect the air supply part 3 with the inner injection pipe 5 and the outer injection pipe 6, the air supply part 3 further includes an L-shaped bracket 31, wherein the bracket 31 includes a first arm 311 and a second arm 312 perpendicular to the axis of the inner injection pipe 5 or the outer injection pipe 6, the first arm 311 is connected to the periphery of the pipe wall of the inner injection pipe 5, the second arm 312 is connected to the periphery of the pipe wall of the outer injection pipe 6, the air supply part further includes a third arm 313 connected to the first arm 311 and the third side wall 323 and parallel to the axis of the inner injection pipe 5 or the outer injection pipe 6, a fourth arm 314 connected to the second arm 312 and the third side wall 323 and parallel to the axis of the inner injection pipe 5 or the outer injection pipe 6, the third side wall 323 is provided with a first through hole 3231 spaced from the outer air inlet 60 of the outer injection pipe 6, the peripheral wall of the first through hole 3231 is connected to the peripheral wall of the outer air inlet 60 of the outer injection pipe 6 through a connecting rod 7, the gap between the connecting rods 7 forms an air inlet channel 70 for the air flowing out from the air outlet end of the air supply part 3 to flow into the air inlet end of the outer injection pipe 6, so that the natural injection and blast modes can be combined in the middle ring area 22 and the outer ring area 23 of the outer ring fire cover 2. In addition, in order to realize the rich-lean combustion of the outer fire hole 231 of the outer fire cover 2, the third side wall 323 is further provided with a second through hole 3232 for independently supplying air to the secondary air supply hole 261, and the second through hole 3232 is in fluid communication with the air outlet end of the air supply portion 3. The dense-dilute combustion of the outer fire hole 231 of the outer ring fire cover 2 can be better realized by independently adjusting the blast volume in the supplementary secondary air chamber 8, the supplementary secondary air chamber 8 jointed with the outer ring wall 26 of the body of the outer ring fire cover 2 is also independently arranged in the outer ring air mixing chamber 21 of the embodiment, and the supplementary secondary air chamber 8 is communicated with the second through hole 3232 through a third connecting pipe 9. Finally, in order to realize the independence of the air inlet passages 70 of the secondary air supply chamber 8, the outer ring air mixing chamber 21 and the inner ring air mixing chamber 41, a connecting piece 30 is arranged between the outer ring air mixing chamber 21 and the base 1, the connecting piece 30 covers the base 1, the outer ring fire cover 2 or the inner ring fire cover 4 covers the connecting piece 30 to form the outer ring air mixing chamber 21 and the inner ring air mixing chamber 41, the connecting piece 30 comprises a central tube body 301 for supporting the inner ring fire cover 4, a first partition plate 3011 and a second partition plate 3012 which are sequentially arranged from the central tube body 301 to the periphery at intervals, the first partition plate 3011 is Z-shaped, the first partition plate 3011 comprises a first partition part 3011a parallel to the central tube body 301, a second partition part 3011b parallel to the first partition part 3011a, and a third partition part 3011c connected between the first partition part 3011a and the second partition part 3011b, the second partition plate 3012 is L-shaped correspondingly, and the third partition part 3012a and the fourth partition part 3012a And fifth separating portions 3012b arranged in parallel, wherein the bottom of the central tube 301 is in fluid communication with the inner injection tube 5, the first separating portion 3011a of the first separating plate 3011 and the outer wall of the central tube 301 form a first air inlet portion 40 communicated with the outer injection tube 6 and the outer annular air mixing chamber 21, the fourth separating portion 3012a of the second separating plate 3012 and the third separating portion 3011c of the first separating plate 3011 form a second air inlet portion 50 communicated with the third connecting tube 9, the second air inlet portion 50 is communicated with the supplemental secondary air chamber 8, and the specific structure of the connecting member 30 can refer to fig. 4 and 5. Correspondingly, a sixth partition 301a parallel to the third partition 3011c extends from the top of the central tube 301 or from the top of the central tube 301 to the second partition 3011b of the first partition 3011, the sixth partition 301a has a seventh partition 301b parallel to the second partition 3011b, wherein the inner wall 25 of the outer ring fire cover 2 is joined to the seventh partition 301b, the outer wall 26 of the outer ring fire cover 2 is jointly supported on the second partition 3011b and the fifth partition 3012b, and the second partition 3011b, the fifth partition 3012b and the outer wall 26 of the outer ring fire cover 2 jointly enclose a secondary air chamber 8. In order to realize the adjustment of the fire hole area of the outer fire hole 231 of the outer ring fire cover 2, the adjusting ring 90 for adjusting the opening area of the outer fire hole 231 of the outer ring fire cover 2 is tightly attached to the second partition part 3011b of the first partition plate 3011, the adjusting ring 90 is provided with adjusting holes 901 aligned with the outer fire holes 231 one by one, the third partition part 3011c of the first partition plate 3011 is provided with an operation port 603 for operating the adjusting ring 90 to expose to the operation part 902 in circumferential rotation relative to the outer ring fire cover 2, and the opening area of the outer fire hole 231 of the outer ring fire cover 2 can be changed by rotating the adjusting ring 90. In order to control the air intake amount entering the second air inlet portion 50 of the secondary air supply chamber 8 during the rich-lean combustion in the outer flame hole 231 of the outer flame cover 2, the third connecting pipe 9 is provided with an adjusting member 700 capable of adjusting the air intake amount of the second through hole 3232 at the downstream of the second through hole 3232.
In summary, the burner for the gas stove has three gas supply channels, wherein one gas supply channel is a natural injection channel of the inner ring fire cover 4, the other gas supply channel is a combination of a natural injection channel and a blast channel of the middle ring area 22 and the outer ring area 23 of the outer ring fire cover 2, and the third gas supply channel is a channel for independently supplementing secondary air to the outer ring area 23 of the outer ring fire cover 2, so that the outer ring area 23 forms thick and thin combustion, the generation of NOx is effectively reduced, and the burner is environment-friendly.
Claims (12)
1. A burner for a gas range, comprising:
a base (1);
the outer ring fire cover (2) is arranged on the base (1), and an outer ring gas mixing chamber (21) is formed between the outer ring fire cover and the base (1);
the method is characterized in that: the outer ring fire cover (2) comprises an annular body, and the body comprises a middle ring area (22) and an outer ring area (23) which are concentrically arranged at intervals; the middle ring area (22) is provided with middle fire holes (221) which are communicated with the outer ring gas mixing chamber (21) and are formed at intervals along the top direction; outer fire holes (231) communicated with the outer ring air mixing chamber (21) are arranged on the outer ring area (23) at intervals along the periphery of the body, outer air inlets (11) allowing external air to flow into the outer ring air mixing chamber (21) are formed in the outer side wall or the bottom wall of the base (1), the outer air inlets (11) are connected with an external air supply part (3), an inner ring fire cover (4) arranged on the inner periphery of the outer ring air mixing chamber (21) is further arranged on the base (1), an inner ring air mixing chamber (41) is formed between the inner ring fire cover (4) and the base (1), inner air inlets (100) allowing external air to flow into the inner ring air mixing chamber (41) are formed in the corresponding outer side wall or the bottom wall of the base (1), the inner air inlets (100) are connected with inner injection pipes (5), and the air inlet ends of the inner injection pipes (5) are suitably provided with inner air inlet parts (51) allowing the air supply part (3) to be exposed outside, the air inlet end of the external air inlet hole (11) comprises a first external air inlet part (601) exposed out of the air supply part (3) and a second external air inlet part (602) communicated with the air supply part (3).
2. Burner for gas cooktops according to claim 1, characterized in that: the body of the outer ring fire cover (2) comprises an annular top wall (24), an inner ring wall (25) extending downwards from the inner side edge of the annular top wall (24) and an outer ring wall (26) extending downwards from the outer side edge of the annular top wall (24), the annular top wall (24) is locally recessed downwards to form an air supplementing groove (27) for separating the middle ring area (22) and the outer ring area (23), and air supplementing holes (271) communicated with outside air are formed in the bottom of the air supplementing groove (27) at intervals.
3. Burner for gas cooktops according to claim 2, characterized in that: the part of the annular top wall (24) corresponding to the outer ring area (23) is provided with upper flame stabilizing holes (241) located above the outer fire holes (231) along the circumferential direction, the bottom of the outer ring wall (26) is provided with secondary air supplementing holes (261) corresponding to the outer fire holes (231) every other one or more outer fire holes (231), and the secondary air supplementing holes (261) are intersected with the outer fire holes (231).
4. Burner for gas cooktops according to claim 3, characterized in that: air feed portion (3) including air-blower (300) and with air outlet end intercommunication's of air-blower (300) play air chamber (32), go out air chamber (32) including with air outlet end lug connection's of air-blower (300) first lateral wall (321), with second lateral wall (322) that first lateral wall (321) set up relatively, confession interior third lateral wall (323) that income gas portion (51) of drawing pipe (5) penetrated, confession draw in the interior income gas portion (51) of drawing pipe (5) wear out, and in fourth lateral wall (324) that third lateral wall (323) set up relatively.
5. Burner for gas cooktops according to claim 4, characterized in that: the gas supply part (3) is characterized by further comprising an L-shaped support (31), wherein the support (31) comprises a first arm (311) and a second arm (312) which are perpendicular to the axis of the inner injection pipe (5) or the outer injection pipe (6), the first arm (311) is connected to the periphery of the pipe wall of the inner injection pipe (5), the second arm (312) is connected to the periphery of the pipe wall of the outer injection pipe (6), and the gas supply part further comprises a third arm (313) which is connected with the first arm (311) and a third side wall (323) and is parallel to the axis of the inner injection pipe (5) or the outer injection pipe (6), a fourth arm (314) which is connected with the second arm (312) and the third side wall (323) and is parallel to the axis of the inner injection pipe (5) or the outer injection pipe (6).
6. Burner for gas cooktops according to claim 5, characterized in that: the third side wall (323) is provided with a first through hole (3231) which is arranged at an interval with the outer air inlet part (60) of the outer injection pipe (6), the peripheral wall of the first through hole (3231) is connected with the peripheral wall of the outer air inlet part (60) of the outer injection pipe (6) through a connecting rod (7), and a gap between the connecting rods (7) forms an air inlet channel (70) for allowing air flowing out from the air outlet end of the air supply part (3) to flow into the air inlet end of the outer injection pipe (6).
7. Burner for gas cooktops according to claim 6, characterized in that: the third side wall (323) is also provided with a second through hole (3232) for independently supplying air to the secondary air supplementing hole (261), and the second through hole (3232) is in fluid communication with the air outlet end of the air supply part (3).
8. Burner for gas cooktops according to claim 7, characterized in that: and a secondary air supplementing chamber (8) jointed with the outer ring wall (26) of the body of the outer ring fire cover (2) is also independently arranged in the outer ring air mixing chamber (21), and the secondary air supplementing chamber (8) is communicated with the second through hole (3232) through a third connecting pipe (9).
9. Burner for gas cooktops according to claim 8, characterized in that: a connecting piece (30) is arranged between the outer ring gas mixing chamber (21) and the base (1), the connecting piece (30) covers the base (1), the outer ring fire cover (2) or the inner ring fire cover (4) covers the connecting piece (30) to form the outer ring gas mixing chamber (21) and the inner ring gas mixing chamber (41), the connecting piece (30) comprises a central tube body (301) for supporting the inner ring fire cover (4), a first partition plate (3011) and a second partition plate (3012) which are sequentially arranged from the central tube body (301) to the outer periphery at intervals, the first partition plate (3011) is Z-shaped and comprises a first partition part (3011a) which is arranged in parallel with the central tube body (301), a second partition part (3011b) which is arranged in parallel with the first partition part (3011a), and a third partition part (3011c) which is connected between the first partition part (3011a) and the second partition part (3011b), correspondingly, the second separation plate (3012) is L-shaped and comprises a fourth separation part (3012a) arranged in parallel with the third separation part (3011c) and a fifth separation part (3012b) arranged in parallel with the second separation part (3011b), wherein the bottom of the central tube body (301) is in fluid communication with the inner injection tube (5), a first air inlet part (40) communicated with the outer injection pipe (6) and the outer ring air mixing chamber (21) is formed by the first separating part (3011a) of the first separating plate (3011) and the outer wall of the central pipe body (301), a second air inlet portion (50) communicating with the third connection pipe (9) is formed by a fourth dividing portion (3012a) of the second dividing plate (3012) and a third dividing portion (3011c) of the first dividing plate (3011), the second air inlet part (50) is communicated with the secondary air supplementing chamber (8).
10. Burner for gas cooktops according to claim 9, characterized in that: and a sixth separating part (301a) parallel to the third separating part (3011c) extends towards the second separating part (3011b) of the first separating plate (3011) from the top of the central pipe body (301) or is adjacent to the top of the central pipe body, the sixth separating part (301a) is provided with a seventh separating part (301b) parallel to the second separating part (3011b), wherein the inner ring wall (25) of the outer fire cover (2) is jointed with the seventh separating part (301b), the outer ring walls (26) of the outer fire cover (2) are jointly abutted against the second separating part (3011b) and the fifth separating part (3012b), and the second separating part (3011b), the fifth separating part (3012b) and the outer ring wall (26) of the outer fire cover (2) jointly enclose the supplementary secondary air chamber (8).
11. Burner for gas cooktops according to claim 10, characterized in that: an adjusting ring (90) used for adjusting the opening area of an outer fire hole (231) of the outer ring fire cover (2) is tightly attached to a second partition part (3011b) of the first partition plate (3011), adjusting holes (901) which are aligned with the outer fire holes (231) one by one are formed in the adjusting ring (90), and an operation opening (603) used for operating the adjusting ring (90) and exposing an operation part (902) which rotates in the circumferential direction of the outer ring fire cover (2) is formed in a third partition part (3011c) of the first partition plate (3011).
12. Burner for gas cooktops according to any one of claims 8 to 11, characterized in that: and an adjusting piece (700) capable of adjusting the air inflow of the second through hole (3232) is arranged at the downstream of the second through hole (3232) of the third connecting pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110018697.5A CN112856409B (en) | 2021-01-07 | 2021-01-07 | Burner for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110018697.5A CN112856409B (en) | 2021-01-07 | 2021-01-07 | Burner for gas stove |
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| Publication Number | Publication Date |
|---|---|
| CN112856409A CN112856409A (en) | 2021-05-28 |
| CN112856409B true CN112856409B (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110018697.5A Active CN112856409B (en) | 2021-01-07 | 2021-01-07 | Burner for gas stove |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551230B (en) * | 2021-08-03 | 2023-11-07 | 九牧厨卫股份有限公司 | Injection device, cooking utensils combustor and cooking utensils |
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| CN112856409A (en) | 2021-05-28 |
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