CN111121025B - Burner for gas stove - Google Patents

Burner for gas stove Download PDF

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Publication number
CN111121025B
CN111121025B CN201811283667.1A CN201811283667A CN111121025B CN 111121025 B CN111121025 B CN 111121025B CN 201811283667 A CN201811283667 A CN 201811283667A CN 111121025 B CN111121025 B CN 111121025B
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CN
China
Prior art keywords
mixing chamber
outer ring
base
gas
inner ring
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Application number
CN201811283667.1A
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Chinese (zh)
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CN111121025A (en
Inventor
方晓艳
李林
郑军妹
俞瑜
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN201811283667.1A priority Critical patent/CN111121025B/en
Publication of CN111121025A publication Critical patent/CN111121025A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/48Nozzles
    • F23D14/58Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/62Mixing devices; Mixing tubes
    • F23D14/64Mixing devices; Mixing tubes with injectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L9/00Passages or apertures for delivering secondary air for completing combustion of fuel 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2900/00Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14Special features of gas burners
    • F23D2900/14062Special features of gas burners for cooking ranges having multiple flame rings

Abstract

The invention relates to a burner for a gas stove, which comprises a base and an outer ring gas mixing chamber, wherein the outer ring gas mixing chamber is supported on the base through supporting legs, a secondary air inlet channel for supplementing air to a fire outlet hole positioned in the outer ring gas mixing chamber is formed by a gap between the bottom wall of the outer ring gas mixing chamber and the base, compared with the prior art, the invention has the advantages that the fire outlet is positioned on the inner ring wall surface of the outer ring gas mixing chamber, thereby realize the outer ring fire of interior formula of spouting, can make flame central heating bottom of a boiler, the increasing of heat efficiency, still raise the base with traditional outer ring gas mixing chamber for the supporting legs simultaneously, not only solved the problem that the secondary air supply of the outer ring fire of interior formula of spouting is not enough, the clearance between outer ring gas mixing chamber and the base still constitutes the supply air for the secondary air inlet channel who is located the fire outlet of outer ring gas mixing chamber inner circle wall, still realize easy clear function simultaneously to and can effectively improve the air feed effect to the fire outlet.

Description

Burner for gas stove
Technical Field
The invention relates to a burner, in particular to a burner for a gas stove.
Background
At present, a fire cover of a gas stove generally comprises an inner ring fire cover and an outer ring fire cover, the heating mode of the fire cover to a pot body is basically a mode of combining an external annular flame and an internal annular flame, the external annular flame is far away from the center of the pot bottom relative to the internal annular flame, the external annular flame is sprayed outwards and cannot intensively heat the bottom of the pot, and the retention time of smoke formed by combustion at the pot bottom is insufficient, so that the efficiency is low and resources are wasted, in order to solve the problems, a Chinese invention patent with a patent application number of CN201310295581.1 (with an authorization publication number of CN103438453A) provides an internal injection type burner for a gas stove, which comprises a base, an injection pipe, a connecting ring, a burner head and a smoke cover, wherein the injection pipe is fixedly connected with the base, the connecting ring, the burner head and the smoke cover are arranged on the base from bottom to top, the inner wall of the burner head is provided with a plurality of fire holes uniformly distributed along the circumference, the flame of this fire hole sprays inwards, can make the flame centralized heating bottom of a boiler, and the increasing of heat efficiency, but the required secondary air of the fire hole burning of the furnace end inner wall of this kind of combustor often is not enough, and the fixed structure of current gas mixing chamber integral type is unfavorable for the cleanness of cooking utensils, especially inside and the waist shape hole in the gas mixing chamber, and the user is also more and more to the difficult clear complaint of gas mixing chamber, still easily appears heating the inhomogeneous phenomenon in bottom of a boiler.
On the other hand, the mode of combining the external annular flame and the internal annular flame is adopted, the center of the internal fire ring of the combination mode still has no flame, and the heating effect of the central position of the bottom of the cooker is poor, therefore, the applicant provides an inner ring fire cover which can integrate an inner ring and a middle ring into a whole and can vertically and upwardly spray burning flame, for example, the Chinese utility model patent with the patent number ZL201420412292.5 (the publication number is CN204063043U) and the burner using the fire cover, the fire cover body is provided with an inner ring wall and an outer ring wall, the center of the inner ring wall forms a central through hole, an annular channel is formed between the inner ring wall and the outer ring wall, the bottom of the annular channel is provided with through holes, the upper cover is of a sheet structure full of meshes, the structure can lead the combustion of the inner ring fire cover to be concentrated, and the flame can vertically and upwardly spray, the combustion is concentrated, the heat loss brought away by secondary air is less, so the combustion temperature is higher, the temperature of the flame for combustion can reach about 1000 ℃, and the heat efficiency is better; however, the burner with the fire cover is often burnt black and even burnt through at the bottom of the central pot, and further improvement on the burner is needed for the purpose.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a burner for a gas range, especially for an internal injection burner, which can supply sufficient secondary air in view of the above prior art.
The second technical problem to be solved by the present invention is to provide a burner for a gas stove, which can slow down the gas outlet speed of an inner ring, in view of the above-mentioned prior art.
A third technical problem to be solved by the present invention is to provide an easy-to-clean burner for a gas stove in view of the above-mentioned prior art.
A fourth technical problem to be solved by the present invention is to provide a burner capable of providing primary air in an appropriate ratio in view of the above-mentioned prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: this a combustor for gas-cooker, including base and outer loop gas mixing chamber, the outer loop gas mixing chamber is including being the annular and concentric inner circle wall and the outer lane wall that sets up of interval and the diapire of connecting inner circle wall and outer lane wall, inner circle wall and outer lane wall top cover have outer ring fire lid, its characterized in that: the outer ring fire cover is provided with fire holes along the circumferential direction at the position adjacent to the wall surface of the inner ring, the outer ring air mixing chamber is supported on the base through at least two supporting legs at intervals, and a secondary air inlet channel for supplementing air to the fire hole area of the fire holes is formed between the bottom wall of the outer ring air mixing chamber and the base.
In order to realize the split structure of the outer ring gas mixing chamber and the base, the base is provided with an outer ring gas channel at the position corresponding to the outer ring gas mixing chamber, the supporting legs are hollow, and the upper and lower ports of the supporting legs are respectively communicated with the outer ring gas mixing chamber and the outer ring gas channel. The supporting leg has the function of dual purposes, not only plays a role of supporting the outer ring gas mixing chamber, but also can be used as a connecting channel for communicating the outer ring gas channel and the outer ring gas mixing chamber.
Furthermore, a lower sealing plate is arranged between the supporting leg and the base, a first through hole is formed in the position, corresponding to the supporting leg, of the lower sealing plate, and a second through hole for gas to pass through is formed in the position, corresponding to the first through hole, of the base.
In order to achieve easy cleanability of the base, the lower sealing plate is provided with a sealing section corresponding to the second through hole between the adjacent first through holes, and the lower sealing plate can move in the circumferential direction relative to the base under the action of external force, so that the corresponding second through hole can be at least partially shielded by the sealing section. Because the lower closing plate can rotate relative to the base to seal the second through hole for the air outlet of the mixed gas, after the connecting rib and the outer ring gas mixing chamber are taken, only the complete base which is basically a plane is left, and the base can be cleaned quickly.
In order to position the lower sealing plate, the lower sealing plate has a positioning member for limiting the movement of the lower sealing plate on the inner periphery of the second through hole, and the base has a positioning seat for inserting the positioning member.
In order to realize the matching of the lower sealing plate and the base, a boss is convexly arranged at the central position of the base, a central hole is formed in the part, corresponding to the boss, of the lower sealing plate, and the central hole of the lower sealing plate surrounds the periphery of the boss, so that the lower sealing plate can be placed on the base.
In order to realize the uniformity of the boiler bottom heated by the burner and facilitate the control of a user on central fire and peripheral fire, the boiler bottom heating device further comprises an inner ring gas mixing chamber positioned on the inner periphery of the outer ring gas mixing chamber, the inner ring gas mixing chamber is also supported on the base, the base is provided with an inner ring gas channel at the position corresponding to the inner ring gas mixing chamber, the boiler bottom heating device further comprises a buffer cavity positioned between the inner ring gas channel and the inner ring gas mixing chamber, and the outlet of the inner ring gas channel is in fluid communication with the inner ring gas mixing chamber through the buffer cavity. Meanwhile, the buffer cavity can slow down the speed of the mixed gas entering the inner ring fire cover, and the phenomenon that the bottom of the pot is burnt black is prevented.
Preferably, at least two connecting ribs are arranged between the peripheral wall of the inner ring air mixing chamber and the inner ring wall surface of the corresponding outer ring air mixing chamber, the connecting ribs form the buffer cavity, the connecting ribs are hollow and are respectively communicated with the inner ring air mixing chamber and the inner ring gas channel, and the inner ring air mixing chamber is supported on the base through the connecting ribs. The connecting rib not only can raise the inner ring fire cover, but also can be hollow and skillfully used as a buffer cavity so as to slow down the speed of the mixed gas entering the inner ring fire cover and prevent the pot bottom from being blackened.
In order to increase the gas buffering space of the gas buffering cavity, the longitudinal section of the connecting rib is of an inverted L shape, the vertical part of the connecting rib is connected with two ends of the horizontal part of the connecting rib respectively on the mounting seat and the inner wall surface of the supporting leg, a third through hole is formed in the part of the lower sealing plate corresponding to the vertical part, and an outlet of the inner ring gas channel is formed in the base and corresponds to the third through hole.
And the clearance between vertical portion and the base can increase the secondary air tonifying tolerance of inner ring fire lid bottom, simultaneously, after taking inner ring fire lid and splice bar together during the cleanness, only remain and be planar base basically to increase the clean convenience between inner ring fire lid and the base.
Furthermore, the opening of the first through hole is larger than the second through hole and the third through hole, and the second through hole and the third through hole are arranged at intervals from outside to inside along the radial direction of the base, so that the lower sealing plate can at least partially shield the third through hole when moving in the circumferential direction relative to the base under the action of external force.
In order to increase the air-buffer space and the air-buffer path of the air-buffer chamber, preferably, the number of the connecting ribs is four, and the connecting ribs are crossed to form a cross shape, correspondingly, the inner ring gas channel is provided with a cavity with the bottom communicated with each other and the cross shape, so that gas and primary air can transversely flow to the vertical part of the connecting ribs along the cavity, then continuously flow to the horizontal part, and finally flow to the inner ring gas-mixing chamber.
Preferably, the mounting seat is formed by crossing positions in the cross-shaped connecting ribs, the inner ring air mixing chamber comprises the mounting seat, an inner ring fire cover positioned on the mounting seat and a cover body covering the inner ring fire cover, and the cover body is of a sheet structure full of fire holes.
In addition to the increase of the area of secondary air at the bottom of the outer ring air mixing chamber caused by the lifting of the outer ring air mixing chamber, the invention also ensures the sufficiency of the primary air of the internal injection type combustor, the base is provided with an outer ring injection pipe which is in fluid communication with the outer ring air mixing chamber, the air inlet end of the outer ring injection pipe is matched with an outer ring nozzle through a nozzle seat, and the nozzle seat is also provided with an air inlet hole for external air to flow into the outer ring injection pipe.
Furthermore, the nozzle seat comprises an inner wall and an outer wall which are spaced from each other inside and outside, and a connecting strip for communicating the inner wall with the outer wall, the inner wall is surrounded to form a central cavity for the outer ring nozzle to be arranged, and the air inlet is formed in the outer wall and communicated with the connecting strip. The air-fuel ratio of the fire outlet communicated with the outer ring air mixing chamber can be adjusted by combining the mode of supplementing primary air by the air supply part connected with the air inlet and the mode of introducing external primary air by the negative pressure generated when the outer ring nozzle sprays fuel gas.
Further, the air inlet is connected with an external air supply part. The air supply part can selectively blow air.
Compared with the prior art, the invention has the advantages that the fire outlet is positioned on the inner ring wall surface of the outer ring gas mixing chamber, thereby realizing the inner-spraying type outer ring fire, enabling the flame to intensively heat the bottom of the pan, improving the heat efficiency, simultaneously lifting the traditional outer ring gas mixing chamber on the base by the supporting leg, not only solving the current situation that the secondary air supplement of the inner-spraying type outer ring fire is insufficient, the gap between the outer ring gas mixing chamber and the base also forms a secondary air inlet channel for supplying air to the fire outlet positioned on the inner ring wall surface of the outer ring gas mixing chamber, a circle of air at the bottom of the outer ring gas mixing chamber can be supplied to the fire outlet, effectively increasing the secondary air supplement amount, but also realizing that only the base which is basically in a plane is left after the outer ring gas mixing chamber is taken during cleaning, being convenient to clean, realizing the characteristics of being movable and easy to clean and effectively improving the air supply effect of the fire outlet, in addition, the supporting leg can be used for conducting and heating air from the outer ring gas mixing chamber, the heat efficiency of the stove is effectively improved.
Drawings
FIG. 1 is a schematic view of a burner according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view at an angle of FIG. 1;
FIG. 3 is a partial cross-sectional view at another angle of FIG. 1 (with the base omitted);
FIG. 4 is a cross-sectional view at yet another angle of FIG. 1;
FIG. 5 is a cross-sectional view of a base in an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a mounting seat formed at the crossing position of the cross-shaped connecting ribs in the embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a lower sealing plate according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a nozzle holder according to an 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 8, the preferred embodiment of the present invention is shown. The burner for the gas stove in the embodiment comprises a base 7 and an outer ring gas mixing chamber 20, the outer ring gas mixing chamber 20 comprises an inner ring wall surface 201 and an outer ring wall surface 202 which are arranged in a ring shape and are concentrically arranged at intervals, and a bottom wall 203 connecting the inner ring wall surface 201 and the outer ring wall surface 202, an outer ring fire cover 30 covers the upper parts of the inner ring wall surface 201 and the outer ring wall surface 202, fire outlets 2011 are formed on the position, adjacent to the inner ring wall surface 201, of the outer ring fire cover 30 along the circumferential direction, the outer ring gas mixing chamber 20 is supported on the base 7 through at least two supporting legs 40 at intervals, for the stability of supporting, the four supporting legs 40 are preferred, a secondary air inlet channel 50 for supplementing air to the fire outlet 2011 area of the fire outlets 2011 is formed between the bottom wall 203 of the outer ring gas mixing chamber 20 and the base 7, the fire outlets 2011 are positioned on the inner ring wall surface 201 of the outer ring gas mixing chamber 20, so as to realize inner-injection type outer ring fire, and enable flames to intensively heat the bottom of the pot, the thermal efficiency is improved, still lift traditional outer loop air mixing chamber 20 with supporting legs 40 and be higher than base 7 simultaneously, the secondary air supply current situation of the outer ring fire of the formula of spraying in has not only been solved, the clearance between outer loop air mixing chamber 20 and the base 7 still constitutes the supply air and gives the secondary air inlet channel 50 that is located the fire outlet 2011 of outer loop air mixing chamber 20 inner circle wall 201, the round air of outer loop air mixing chamber 20 bottom all can supply air to fire outlet 2011, the air supply volume of secondary air has effectively been increased, and after outer loop air mixing chamber 20 has still been realized taking when clean, only remain basically planar liquid containing plate, it is clean convenient. In order to realize the split structure of the outer ring gas mixing chamber 20 and the base 7, the base 7 is provided with an outer ring gas channel 72 at a position corresponding to the outer ring gas mixing chamber 20, the supporting leg 40 is hollow, the upper port and the lower port of the supporting leg 40 are respectively communicated with the outer ring gas mixing chamber 20 and the outer ring gas channel 72, the supporting leg 40 has a dual-purpose function, not only plays a role of supporting the outer ring gas mixing chamber 20, but also can be used as a connecting channel for communicating the outer ring gas channel 72 with the outer ring gas mixing chamber 20. Further, a lower sealing plate 80 is disposed between the support leg 40 and the base 7, a first through hole 801 is formed in a portion of the lower sealing plate 80 corresponding to the support leg 40, and a second through hole 74 through which gas passes is formed in a portion of the base 7 corresponding to the first through hole 801. In order to achieve easy cleanability of the base 7, the lower sealing plate 80 has a closing section 802 corresponding to the second through hole 74 between the adjacent first through holes 801, and the lower sealing plate 80 can move in the circumferential direction relative to the base 7 under the action of an external force, so that the closing section 802 can at least partially block the corresponding second through hole 74. Since the lower sealing plate 80 can rotate relative to the base 7 to seal the second through hole 74 for discharging the mixed gas, when the connecting rib 8 and the outer ring gas mixing chamber 20 are taken out, only the complete base 7 with a substantially plane surface is left, and the base 7 can be cleaned quickly. In order to position the lower sealing plate 80, the lower sealing plate 80 has a positioning member 90 for limiting the movement of the lower sealing plate 80 at the inner periphery of the second through hole 74, and the base 7 has a positioning seat 75 for the positioning member 90 to be inserted. When the burner is required to be supplied with gas, the positioning member 90 is inserted into the positioning seat 75 and exposes the second through hole 74 and the third through hole 73, when the lower sealing plate 80 is required to seal the second through hole 74 and the third through hole 73, the positioning member 90 is pulled out to rotate the lower sealing plate 80, in this embodiment, the positioning member 90 is a positioning pin, the head of the positioning pin is clamped outside the positioning seat 75, in order to realize the matching between the lower sealing plate 80 and the base 7, the boss 76 is protruded upward at the central position of the base 7, the central hole 800 is formed in the position of the lower sealing plate 80 corresponding to the boss 76, and the central hole 800 of the lower sealing plate 80 surrounds the boss 76 to realize that the lower sealing plate 80 can be placed on the base 7.
In order to realize the uniformity of the bottom of the boiler heated by the burner, so that a user can control the central fire and the peripheral fire, the burner further comprises an inner ring gas mixing chamber 10 positioned at the inner periphery of the outer ring gas mixing chamber 20, the inner ring gas mixing chamber 10 is also supported on the base 7, the base 7 is provided with an inner ring gas channel 71 at a position corresponding to the inner ring gas mixing chamber 10, the burner further comprises a buffer cavity 89 positioned between the inner ring gas channel 71 and the inner ring gas mixing chamber 10, the outlet of the inner ring gas channel 71 is in fluid communication with the inner ring gas mixing chamber 10 through the buffer cavity 89, and meanwhile, the buffer cavity 89 can slow down the speed of the mixed gas entering the inner ring fire cover 1, so that the phenomenon that the bottom of the boiler is burned black is avoided. Preferably, four connecting ribs 8 corresponding to the four supporting legs 40 are arranged between the outer ring wall 12 of the inner ring gas mixing chamber 10 and the inner ring wall 201 of the corresponding outer ring gas mixing chamber 20, wherein the connecting ribs 8 form a buffer chamber 89, the connecting ribs 8 are hollow and are respectively communicated with the inner ring gas mixing chamber 10 and the inner ring gas channel 71, the inner ring gas mixing chamber 10 is supported on the base 7 through the connecting ribs 8, the connecting ribs 8 not only can lift the inner ring fire cover 1, but also the connecting ribs 8 are hollow and are skillfully used as the buffer chamber 89, so that the speed of the mixed gas entering the inner ring fire cover 1 is reduced, and the phenomenon that the bottom of a pan is burned black can be prevented. In order to increase the gas-release space of the gas-release chamber, the longitudinal section of the connecting rib 8 is in an inverted L shape, the vertical part 81 of the connecting rib 8, two ends of the horizontal part 82 of the connecting rib 8 are respectively connected to the mounting seat 83 and the inner wall surface 401 of the supporting foot 40, the lower sealing plate 80 is provided with a third through hole 73 at the position corresponding to the vertical part 81, and the outlet of the inner ring gas channel 71 is arranged on the base 7 and corresponds to the third through hole 73.
The lower sealing plate 80 is provided with a third through hole 73 at a position corresponding to the vertical portion 81, and the outlet of the inner ring gas passage 71 is provided in the base 7 and corresponds to the third through hole 73. And the clearance between vertical portion 81 and base 7 can increase the secondary air supply volume of inner ring fire lid 1 bottom, simultaneously, after taking inner ring fire lid 1 and splice bar 8 together during the cleanness, only remain base 7 that is basically planar to increase the cleanness convenience between inner ring fire lid 1 and the base 7, correspondingly, the opening of first through-hole 801 is greater than second through-hole 74 and third through-hole 73, and, second through-hole 74 and third through-hole 73 are along base 7's radial direction, outside-in interval arrangement, and then shrouding 80 can also at least partially shelter from third through-hole 73 when moving in the circumference under the exogenic action relatively base 7 down. In order to increase the air-buffer space and the air-buffer path of the air-buffer chamber, preferably, the connecting ribs 8 have four ribs, and cross to form a cross, correspondingly, the inner ring gas channel 71 has a cross cavity 711 with a through bottom, so that the gas and the primary air can flow along the cavity 711 transversely to the vertical part 81 of the connecting rib 8, then continue to flow to the horizontal part 82, and finally flow to the inner ring air-mixing chamber 10, wherein the path (as shown in fig. 2, only one side is shown for simplicity) of the mixed gas formed by mixing the gas and the primary air in the buffer cavity 89, meanwhile, the cross can increase the mutual impact when the gas and the primary air are converged in opposite directions, further improve the uniformity of the primary air uniformly distributed in the inner ring air-mixing chamber 10, further reduce the air outlet speed of the gas and the primary air, and the mounting seat 83 is formed by the cross position in the cross connecting rib 8, the inner ring air mixing chamber 10 comprises an installation base 83, an inner ring fire cover 1 positioned on the installation base 83 and a cover body 6 covering the inner ring fire cover, wherein the cover body 6 is of a sheet structure fully distributed with fire holes 61.
In addition to the area of the secondary air at the bottom of the outer ring air mixing chamber 20 increased by the 'lifting' of the outer ring air mixing chamber 20, the invention also ensures the sufficiency of the primary air of the 'internal injection type' burner, the base 7 is provided with the outer ring ejector tube 100 which is in fluid communication with the outer ring air mixing chamber 20, the air inlet end 101 of the outer ring ejector tube 100 is adapted with the outer ring nozzle 102 through the nozzle holder 103, the nozzle holder 103 is also provided with the air inlet 1031 for the external air to flow into the outer ring ejector tube 100, wherein, the nozzle holder 103 comprises an inner wall 1032, an outer wall 1033 and a connecting strip 1034 for connecting the inner wall 1032 and the outer wall 1033, the inner wall 1032 encloses a central cavity 1035 for the outer ring nozzle 102, the air inlet 1031 is arranged on the outer ring wall 12 and communicated with the connecting strip 1034, the primary air can be introduced into the external by the negative pressure generated by the outer ring nozzle 102 through the gas injection, the air-fuel ratio of the fire outlet 2011 communicated with the outer ring air mixing chamber 20 is adjusted in two ways, preferably, the air inlet 1031 is connected with an external air supply part which can selectively blow air, and correspondingly, an inner ring ejector pipe 300 communicated with the fluid of the inner ring air mixing chamber 10 is also arranged on the base 7.
To sum up, the fire outlet 2011 of the embodiment is located on the inner ring wall 201 of the outer ring air mixing chamber 20, so as to achieve inner-injection type outer ring fire, enable flame to heat the bottom of a pot intensively, improve thermal efficiency, and simultaneously solve the problem that the traditional outer ring air mixing chamber 20 is lifted above the base 7 by the supporting feet 40, not only does the problem of insufficient secondary air supply of the inner-injection type outer ring fire, but also the gap between the outer ring air mixing chamber 20 and the base 7 forms the secondary air inlet channel 50 for supplying the secondary air to the fire outlet 2011 located on the inner ring wall 201 of the outer ring air mixing chamber 20, a circle of air at the bottom of the outer ring air mixing chamber 20 can be supplied to the fire outlet 2011, so that the amount of secondary air supply is effectively increased, the design of the special outer ring nozzle 102 seat also solves the problem that the primary air and fuel gas energy of the inner-injection type outer ring fire are in the best air-fuel ratio, and in addition, after the outer ring air mixing chamber 20 is taken during cleaning, the base 7 can be in a planar state through the rotation of the lower sealing plate 80 relative to the base 7, the cleaning is convenient, and in addition, the heat conducted by the supporting legs 40 from the outer ring air mixing chamber 20 is used for heating air more, so that the heat efficiency of the cooker is effectively improved.

Claims (12)

1. The utility model provides a combustor for gas-cooker, is including base (7) and outer ring gas mixing chamber (20), outer ring gas mixing chamber (20) is including being the annular and concentric inner circle wall (201) and outer lane wall (202) that the interval set up and diapire (203) of connecting inner circle wall (201) and outer lane wall (202), inner circle wall (201) and outer lane wall (202) top cover have outer ring fire lid (30), its characterized in that: a fire outlet (2011) is formed in the position, adjacent to the inner ring wall surface (201), of the outer ring fire cover (30) along the circumferential direction, the outer ring air mixing chamber (20) is supported on the base (7) through at least two supporting legs (40) at intervals, and a secondary air inlet channel (50) for supplementing air to a fire outlet area of the fire outlet (2011) is formed in a gap between the bottom wall (203) of the outer ring air mixing chamber (20) and the base (7); the base (7) is provided with an outer ring gas channel (72) at the position corresponding to the outer ring gas mixing chamber (20), the supporting leg (40) is hollow, and the upper port and the lower port of the supporting leg (40) are respectively communicated with the outer ring gas mixing chamber (20) and the outer ring gas channel (72);
a lower sealing plate (80) is further arranged between the supporting leg (40) and the base (7), a first through hole (801) is formed in the position, corresponding to the supporting leg (40), of the lower sealing plate (80), and a second through hole (74) for gas to pass through is formed in the position, corresponding to the first through hole (801), of the base (7);
the lower sealing plate (80) is provided with a closed section (802) corresponding to the second through hole (74) between the adjacent first through holes (801), and the lower sealing plate (80) can move relative to the base (7) in the circumferential direction under the action of external force, so that the closed section (802) can at least partially shield the corresponding second through hole (74).
2. Burner for gas cooktops according to claim 1, characterized in that: the lower sealing plate (80) is provided with a positioning element (90) for limiting the movement of the lower sealing plate (80) at the inner periphery of the second through hole (74), and the base (7) is provided with a positioning seat (75) for inserting and matching the positioning element (90).
3. Burner for gas cooktops according to any one of claims 1 to 2, characterized in that: the center of the base (7) is provided with a boss (76) in an upward protruding manner, the part of the lower sealing plate (80) corresponding to the boss (76) is provided with a central hole (800), and the lower sealing plate (80) can be placed on the base (7) by surrounding the central hole (800) of the lower sealing plate (80) on the periphery of the boss (76).
4. Burner for gas cooktops according to claim 3, characterized in that: the gas mixing device is characterized by further comprising an inner ring gas mixing chamber (10) located on the inner periphery of the outer ring gas mixing chamber (20), the inner ring gas mixing chamber (10) is also supported on the base (7), the base (7) is provided with an inner ring gas channel (71) at a position corresponding to the inner ring gas mixing chamber (10), the gas mixing device further comprises a buffer cavity (89) located between the inner ring gas channel (71) and the inner ring gas mixing chamber (10), and an outlet of the inner ring gas channel (71) is in fluid communication with the inner ring gas mixing chamber (10) through the buffer cavity (89).
5. Burner for gas cooktops according to claim 4, characterized in that: at least two connecting ribs (8) are arranged between the outer ring wall (12) of the inner ring air mixing chamber (10) and the corresponding inner ring wall surface (201) of the outer ring air mixing chamber (20), the connecting ribs (8) form the buffer cavity (89), the connecting ribs (8) are hollow and are respectively communicated with the inner ring air mixing chamber (10) and the inner ring gas channel (71), and the inner ring air mixing chamber (10) is supported on the base (7) through the connecting ribs (8).
6. Burner for gas cooktops according to claim 5, characterized in that: the longitudinal section of splice bar (8) is the L type of inversion, vertical portion (81) of splice bar (8), horizontal part (82) both ends of splice bar (8) are connected respectively in mount pad (83) and on internal face (401) of supporting legs (40), lower shrouding (80) is corresponding third through-hole (73) have been seted up at the position of vertical portion (81), the export of inner ring gas channel (71) is seted up base (7) and is corresponding to third through-hole (73).
7. Burner for gas cooktops according to claim 6, characterized in that: the opening of the first through hole (801) is larger than the second through hole (74) and the third through hole (73), the second through hole (74) and the third through hole (73) are arranged at intervals from outside to inside along the radial direction of the base (7), and therefore when the lower sealing plate (80) can move relative to the base (7) in the circumferential direction under the action of external force, the third through hole (73) can be at least partially shielded.
8. Burner for gas cooktops according to claim 7, characterized in that: the four connecting ribs (8) are crossed to form a cross shape, correspondingly, the inner ring gas channel (71) is provided with a cavity (711) which is communicated with each other at the bottom and is in a cross shape, and gas and primary air can transversely flow to the vertical part (81) of the connecting ribs (8) along the cavity (711) and then continuously flow to the horizontal part (82) and finally flow to the inner ring gas mixing chamber (10).
9. Burner for gas cooktops according to any one of claims 6 to 8, characterized in that: the mounting seat (83) is formed by cross-shaped cross positions in the connecting ribs (8), the inner ring air mixing chamber (10) comprises the mounting seat (83), an inner ring fire cover (1) positioned on the mounting seat (83) and a cover body (6) covering the inner ring fire cover, and the cover body (6) is of a sheet structure fully distributed with fire holes (61).
10. Burner for gas cooktops according to any one of claims 1 to 2, characterized in that: the base (7) is provided with an outer ring injection pipe (100) which is in fluid communication with the outer ring gas mixing chamber (20), an air inlet end (101) of the outer ring injection pipe (100) is matched with an outer ring nozzle (102) through a nozzle seat (103), and the nozzle seat (103) is further provided with an air inlet (1031) through which outside air flows into the outer ring injection pipe (100).
11. Burner for gas cooktops according to claim 10, characterized in that: the nozzle seat (103) comprises an inner wall (1032), an outer wall (1033) and a connecting strip (1034) which is communicated with the inner wall (1032) and the outer ring wall (12) at intervals, the inner wall (1032) is surrounded to form a central cavity (1035) for the arrangement of the outer ring nozzle (102), and the air inlet hole (1031) is formed in the outer wall (1033) and communicated with the connecting strip (1034).
12. Burner for gas cooktops according to claim 11, characterized in that: the air inlet hole (1031) is connected with an external air supply part.
CN201811283667.1A 2018-10-31 2018-10-31 Burner for gas stove Active CN111121025B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111720825B (en) * 2020-06-23 2022-02-22 宁波方太厨具有限公司 Fire distributor and gas stove comprising same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669401B1 (en) * 1990-11-21 1995-01-06 Gaz De France IMPROVED GAS BURNER FOR COOKER, COOKTOP OR THE LIKE.
DE19820445A1 (en) * 1998-05-07 1999-11-11 Bsh Bosch Siemens Hausgeraete Gas burner for cooking stove
CN101078518A (en) * 2006-05-26 2007-11-28 北京大学 Flame stabilizing burner
CN104121583A (en) * 2014-07-24 2014-10-29 宁波方太厨具有限公司 Burner cap of household gas stove and combustor provided with same
CN206073149U (en) * 2016-08-18 2017-04-05 张祺生 A kind of upper inlet wind high-power cumulative cooker burner
CN108006644A (en) * 2017-06-24 2018-05-08 宁波方太厨具有限公司 A kind of burner for gas-cooker
CN207635337U (en) * 2017-12-26 2018-07-20 宁波方太厨具有限公司 A kind of burner for gas-cooker
CN207674439U (en) * 2017-12-30 2018-07-31 宁波方太厨具有限公司 A kind of burner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669401B1 (en) * 1990-11-21 1995-01-06 Gaz De France IMPROVED GAS BURNER FOR COOKER, COOKTOP OR THE LIKE.
DE19820445A1 (en) * 1998-05-07 1999-11-11 Bsh Bosch Siemens Hausgeraete Gas burner for cooking stove
CN101078518A (en) * 2006-05-26 2007-11-28 北京大学 Flame stabilizing burner
CN104121583A (en) * 2014-07-24 2014-10-29 宁波方太厨具有限公司 Burner cap of household gas stove and combustor provided with same
CN206073149U (en) * 2016-08-18 2017-04-05 张祺生 A kind of upper inlet wind high-power cumulative cooker burner
CN108006644A (en) * 2017-06-24 2018-05-08 宁波方太厨具有限公司 A kind of burner for gas-cooker
CN207635337U (en) * 2017-12-26 2018-07-20 宁波方太厨具有限公司 A kind of burner for gas-cooker
CN207674439U (en) * 2017-12-30 2018-07-31 宁波方太厨具有限公司 A kind of burner

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