CN113685815A - Upper air inlet burner - Google Patents
Upper air inlet burner Download PDFInfo
- Publication number
- CN113685815A CN113685815A CN202110858859.6A CN202110858859A CN113685815A CN 113685815 A CN113685815 A CN 113685815A CN 202110858859 A CN202110858859 A CN 202110858859A CN 113685815 A CN113685815 A CN 113685815A
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- China
- Prior art keywords
- outer ring
- ring nozzle
- air
- burner
- inner ring
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Classifications
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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
- F23D14/48—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
- F23D14/46—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
- 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
- F23D14/84—Flame spreading or otherwise shaping
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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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/008—Structurally associated with fluid-fuel burners
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2207/00—Ignition devices associated with burner
Abstract
The invention discloses an upper air inlet burner which comprises a base, an inner ring nozzle and an outer ring nozzle. The base comprises an installation disc, an inner ring nozzle seat and at least one outer ring nozzle seat, wherein the installation disc is provided with an upward disc surface; the inner ring nozzle seat is arranged in the middle of the disk surface; the inner ring nozzle is inserted and fixed on the hole of the inner ring nozzle seat. The outer ring nozzle seat is arranged on the disk surface, the side surface of the outer ring nozzle seat is provided with an outer ring nozzle used for jetting fuel gas obliquely upwards, and at least one outer ring nozzle seat is also provided with a mounting hole extending along the vertical direction. The ignition needle, the thermocouple or the ion ignition device is arranged on the outer ring nozzle seat through the mounting hole, and the ignition needle, the thermocouple or the ion ignition device and an outer ring nozzle are integrated on the outer ring nozzle seat, so that the number of bulges on the disk surface is reduced, the dead angle is reduced, and the cleaning is convenient.
Description
Technical Field
The invention relates to the technical field of burners, in particular to an upper air inlet burner.
Background
The top intake burners generally have multiple ring flames, such as two-ring flame burners and three-ring flame burners, in which, for example, the two-ring flame burners are located at the inner layer as the inner ring flame and the outer ring flame burners are located at the outer layer as the outer ring flame. The base of the upper air inlet burner needs to be provided with a plurality of nozzle seats for installing nozzles so as to supply air to the inner ring and the outer ring respectively, and the base is also provided with a structure for installing a thermocouple and an ignition needle. In the prior art, a plurality of protruding structures are arranged on a base for installing a nozzle, an ignition needle and a thermocouple, and overflowing liquid overflows the base to cause the base to be difficult to clean.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defect of difficulty in cleaning a combustor in the prior art and provides an upper air inlet combustor.
The invention solves the technical problems through the following technical scheme:
an upper inlet burner comprising a base, an inner ring nozzle and an outer ring nozzle, the base comprising:
the mounting plate is provided with an upward plate surface;
the inner ring nozzle seat is arranged in the middle of the disc surface;
the fuel gas injection nozzle comprises at least one outer ring nozzle seat arranged on the disc surface, an outer ring nozzle used for injecting fuel gas obliquely upwards is arranged on the side surface of the outer ring nozzle seat, and a mounting hole extending in the vertical direction is further formed in at least one outer ring nozzle seat.
In this scheme, through setting up the mounting hole on the outer ring nozzle base and installing ignition needle, thermocouple or ion ignition equipment, be equivalent to ignition needle, thermocouple or ion ignition equipment and an outer ring nozzle integration on an outer ring nozzle base for protruding quantity on the quotation reduces, thereby has reduced the dead angle, is convenient for clean.
Preferably, the outer ring nozzle holder includes first installation department, at least one the outer ring nozzle holder still include with first installation department integrated into one piece's second installation department, the side of first installation department is provided with one the outer ring nozzle holder, be provided with on the second installation department the mounting hole.
In this scheme, have the outer ring nozzle holder of first installation department and second installation department concurrently and still be a protruding structure for the quotation is whole, can not have more dead angles because of having divided first installation department and second installation department.
Preferably, a plurality of the outer ring nozzle holders are arranged on the disk surface, and each of the outer ring nozzle holders is arranged around the inner ring nozzle holder.
In this scheme, go up air inlet burner's outer loop and have a plurality of air inlets of receiving the gas, be favorable to improving outer loop flame's homogeneity and stability.
Preferably, an upward protruding positioning column is arranged on the upper end face of the first mounting portion, and the positioning column is of a structure with a narrow upper part and a wide lower part.
In this scheme, be provided with the reference column on the outer loop nozzle holder, improved the accuracy of location, also make the last air inlet burner after the location more stable. The positioning column is arranged on the outer ring nozzle seat, and a protruding structure is not required to be additionally arranged on the disk surface, so that dead angles on the disk surface are not increased by the positioning column.
Preferably, the upper inlet burner has two outer ring nozzle holders located at both sides of the inner ring nozzle holder, the mounting hole of one of the outer ring nozzle holders is used for mounting an ignition needle, and the mounting hole of the other outer ring nozzle holder is used for mounting a thermocouple.
In this scheme, have the interval between outer loop nozzle holder and the inner ring nozzle holder, be difficult for forming the dead angle, be convenient for clean, still be favorable to guaranteeing that outer loop nozzle department has sufficient air to be injected into the combustor and form primary air.
Preferably, the center of the mounting disc protrudes upwards to form the inner ring nozzle holder, and the inner ring nozzle holder is in a short tube shape.
In the scheme, the inner ring nozzle seat is simple, and the size of the inner ring nozzle seat is consistent with that of the inner ring nozzle, so that dead corners are not easily formed on the inner ring nozzle seat.
Preferably, the upper air inlet burner further comprises an air mixing chamber, the air mixing chamber comprises an inner air mixing cavity, an inner ring injection pipe communicated with the inner air mixing cavity, an outer air mixing cavity and an outer ring injection pipe communicated with the outer air mixing cavity, an air inlet of the inner ring injection pipe is over against the inner ring nozzle, and an air inlet of the outer ring injection pipe is over against the outer ring nozzle.
Preferably, the outer ring injection pipe gradually extends upwards from one end of the air inlet to the other end of the air inlet, so that the flow path of mixed gas is enlarged, the gas and the air are fully mixed, and the heat efficiency is improved;
and/or the air outlet of the outer ring injection pipe is of a contraction structure, when the upper air inlet burner stops working, less mixed gas stays at the air outlet of the outer ring injection pipe, so that the detonation phenomenon caused by the fact that the mixed gas impacts the inner wall surface of the outer ring injection pipe is reduced, and the combustion stability is improved;
and/or the outer gas mixing cavity is separated into a plurality of gas mixing units through barriers, and each gas mixing unit at least corresponds to one outer gas mixing cavity. In the scheme, the gas mixing unit is arranged, so that the influence of external airflow on outer ring flame is reduced, for example, when the external environment causes unstable gas in one gas mixing unit due to airflow fluctuation caused by windowing or air conditioning, the influence of the gas in the gas mixing unit on the airflow fluctuation in the other gas mixing unit is weakened due to the existence of the block, and the stability of flame is improved.
Preferably, the air mixing chamber further comprises a shielding structure, and the shielding structure covers the outer ring nozzle seat and the outer ring nozzle directly above.
In this scheme, shelter from the structure and shelter from to outer loop nozzle seat and outer loop nozzle formation, prevented that the overflow from falling and leading to the jam on outer loop nozzle seat and the outer loop nozzle, reduced the degree of difficulty of clearance. In specific implementation, the shielding structure can be formed by protruding outwards from the inner gas mixing cavity; the shielding structure can only shield the outer ring nozzle seat and the outer ring nozzle, and can also adopt an annular structure, and the local position of the shielding structure is positioned right above the outer ring nozzle seat and the outer ring nozzle.
Preferably, the shielding structure includes a shielding plate including an inclined portion that is gradually inclined downward from a position close to the center of the gas mixing chamber to a position away from the center of the gas mixing chamber.
In this scheme, the rake can be effectively with the position that the base center was kept away from to the guiding of flash.
Preferably, the shielding plate further comprises an annular flat plate portion, an inner ring of the flat plate portion is connected with the inner gas mixing cavity, an outer ring of the flat plate portion is connected with the inclined portion, and the flat plate portion is provided with positioning holes corresponding to the mounting holes up and down.
And/or, the sheltering structure further comprises a flow baffle arranged at the position of the outer ring injection pipe, the upper end of the flow baffle is connected with the edge of the sheltering plate, the lower end of the flow baffle is provided with a notch, and the flow baffle surrounds an arc plate extending around the central shaft of the upper air inlet burner.
Preferably, the gas mixing chamber still includes through the inlayer that the outer loop draws penetrates the union coupling mixes the gas structure and outer gas structure that mixes, the inlayer mixes the structural formation of gas the interior gas cavity that mixes, the surface that the inlayer mixes the gas structure outwards extends and forms shelter from the structure, outer gas structure that mixes includes outer gas cavity that mixes, outer gas structure that mixes with shelter from and form secondary air passageway between the structure.
In this scheme, the outer loop draws penetrates the pipe and can shelter from the structure through the connection and realize mixing the gas structure with the inlayer being connected, draws through the outer loop and penetrates the union coupling inlayer and mix the gas structure and the outer stability that mixes the gas structure and has improved the gas chamber that mixes. Due to the inclined part of the baffle plate, the amount of air which can flow through the secondary air channel is increased, and meanwhile, the inclined part also has a guiding effect on the air flow, so that the air flow is guided to stably flow to the position between the inner layer air mixing structure and the outer layer air mixing structure and upwards flow, the disturbance of the air flow is reduced, and the combustion stability is improved.
Preferably, the upper air inlet burner further comprises an inner ring fire cover, the inner ring fire cover is arranged at the opening of the inner gas mixing cavity, and a fire outlet is formed in the side surface of the inner ring fire cover; and/or the presence of a gas in the gas,
the upper air inlet burner further comprises an outer ring fire cover, the outer ring fire cover is arranged at the opening of the outer gas mixing cavity, and a fire outlet is formed in the upper surface of the outer ring fire cover.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
the ignition needle, the thermocouple or the ion ignition device is arranged on the outer ring nozzle seat through the mounting hole, and the ignition needle, the thermocouple or the ion ignition device and an outer ring nozzle are integrated on the outer ring nozzle seat, so that the number of bulges on the disk surface is reduced, the dead angle is reduced, and the cleaning is convenient.
Drawings
FIG. 1 is a schematic structural view of an upper intake air burner according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a base of an upper intake burner according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a base of an upper intake burner according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an upper intake burner according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an upper intake burner according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of an upper intake burner of an embodiment of the present invention;
FIG. 7 is a schematic structural view of an air intake burner of an embodiment of the present invention, with a base hidden;
FIG. 8 is a schematic structural view of an upper intake air burner of an embodiment of the present invention with an outer ring fire cover hidden;
fig. 9 is a schematic structural view of a gas mixing chamber of an upper intake burner according to an embodiment of the present invention.
Description of reference numerals:
Inner ring nozzle carrier 12
Outer ring nozzle holder 13
First mounting part 131
Second mounting part 132
Mounting hole 133
Positioning post 134
Inner layer gas mixing structure 61
Inner gas mixing cavity 611
Inner ring ejector tube 62
Outer layer gas mixing structure 63
External mixing cavity 631
Outer ring ejector tube 64
Inner ring fire cover 8
Outer ring fire cover 9
Detailed Description
The present invention is further illustrated by the following examples, but is not limited thereby in the scope of the examples described below.
Please refer to fig. 1-3 for understanding. The embodiment of the invention provides an upper air inlet combustor 100 which comprises a base 1, an inner ring nozzle 2 and an outer ring nozzle 3. The base 1 comprises a mounting disc 11, an inner ring nozzle holder 12 and at least one outer ring nozzle holder 13, wherein the mounting disc 11 is provided with an upward disc surface 111, and the disc surface 111 can be a circular surface; the inner ring nozzle holder 12 is arranged in the middle of the disk surface 111, preferably in the center of the disk surface 111, and the inner ring nozzle holder 12 is arranged in a protruding manner relative to the disk surface 111; when the gas burner is used specifically, the inner ring nozzle seat 12 can be a short pipe-shaped structure formed by upward protruding the center of the mounting disc 11, the inner ring nozzle 2 is fixedly inserted in a hole of the inner ring nozzle seat 12, and the inner ring nozzle 2 vertically and upwardly sprays gas. The outer ring nozzle holder 13 is arranged on the disk surface 111 and protrudes relative to the disk surface 111, the outer ring nozzle 3 used for jetting fuel gas obliquely upwards is arranged on the side surface of the outer ring nozzle holder 13, at least one outer ring nozzle holder 13 is also provided with a mounting hole 133 extending along the vertical direction, the ignition needle 4, the thermocouple 5 and the ion ignition device all extend along the vertical direction, and one mounting hole 133 is used for mounting one of the mounting holes.
In this embodiment, the mounting hole 133 is provided on the outer ring nozzle holder 13 to mount the ignition needle 4, the thermocouple 5, or the ion ignition device, which is equivalent to integrating the ignition needle 4, the thermocouple 5, or the ion ignition device with one outer ring nozzle 3 on one outer ring nozzle holder 13, so that the number of protrusions on the disk surface 111 is reduced, thereby reducing dead angles and facilitating cleaning.
Fig. 2 and 3 are schematic diagrams in which two outer ring nozzle holders 13 each have a mounting hole 133, fig. 2 is a schematic diagram before the ignition needle 4 and the thermocouple 5 are mounted, fig. 3 is a schematic diagram after the ignition needle 4 and the thermocouple 5 are mounted, it is true that in other embodiments, as an alternative, only one outer ring nozzle holder 13 may be provided on the disk surface 111, the mounting hole 133 on the outer ring nozzle holder 13 is used to mount the ion ignition device, and as another alternative, more than two outer ring nozzle holders 13 may be provided on the disk surface 111, and one or two outer ring nozzle holders 13 having the mounting holes 133 may be provided therein.
Please continue to refer to fig. 1-3. In the embodiment of the present invention, the outer ring nozzle holder 13 includes the first mounting portion 131, one outer ring nozzle holder 13 is disposed on a side surface of the first mounting portion 131, at least one outer ring nozzle holder 13 further includes the second mounting portion 132, and the second mounting portion 132 is disposed with the mounting hole 133. The outer ring nozzle holder 13 is integrally formed, and the outer ring nozzle holder 13 having the first mounting portion 131 and the second mounting portion 132 is still a protruding structure as a whole relative to the disk surface 111, and thus, no dead angle is caused by dividing the first mounting portion 131 and the second mounting portion 132.
Please continue to refer to fig. 1-3. In the embodiment of the present invention, the outer ring nozzle holder 13 may be a column as a whole, or may be two columns combined together, in this embodiment, the upper end surface of the second mounting portion 132 of one outer ring nozzle holder 13 is flush with the upper end surface of the first mounting portion 131, and is used for mounting the fire needle 4, and the upper end surface of the second mounting portion 132 of the other outer ring nozzle holder 13 is lower than the upper end surface of the first mounting portion 131, and is used for mounting the thermocouple 5.
Please continue to refer to fig. 1-3. In the embodiment of the invention, the disk surface 111 is provided with a plurality of outer ring nozzle seats 13, and each outer ring nozzle seat 13 is arranged around the inner ring nozzle seat 12, so that the outer ring of the upper air inlet burner 100 is provided with a plurality of air inlets for receiving fuel gas, which is beneficial to improving the uniformity and stability of outer ring flame. Indeed, as an alternative, in other embodiments, the disk surface 111 may also have only one outer ring nozzle holder 13, and accordingly the upper inlet burner 100 now has only one inlet for receiving gas.
Please continue to refer to fig. 2 and 3. In the embodiment of the present invention, the upper end surface of the first mounting portion 131 is provided with a positioning column 134 protruding upward, and the positioning column 134 has a structure with a narrow top and a wide bottom. The positioning column 134 is used for positioning with the gas mixing chamber 6 of the upper air inlet burner 100, and a positioning groove 674 matched with the positioning column 134 can be arranged on the gas mixing chamber 6. In this embodiment, the positioning columns 134 are disposed on the two outer ring nozzle holders 13, so that the positioning accuracy is improved, and the positioned upper inlet burner 100 is more stable.
Please continue to refer to fig. 2 and 3. In the embodiment of the invention, the two outer ring nozzle holders 13 are positioned at two sides of the inner ring nozzle holder 12, preferably, the two outer ring nozzle holders 13 are symmetrically arranged relative to the inner ring nozzle holder 12, and the outer ring nozzle holder 13 and the inner ring nozzle holder 12 are spaced, so that dead corners are not easy to form, the cleaning is convenient, and the sufficient air at the outer ring nozzle 3 is ensured to be injected into the combustor to form primary air.
Please refer to fig. 1 and fig. 4-7 for understanding. In the embodiment of the present invention, the upper inlet burner 100 further includes the gas mixing chamber 6, and the gas mixing chamber 6 may be integrally formed or formed by assembling a plurality of components. The gas mixing chamber 6 comprises an inner gas mixing cavity 611, an inner ring injection pipe 62 communicated with the inner gas mixing cavity 611, an outer gas mixing cavity 631 and an outer ring injection pipe 64 communicated with the outer gas mixing cavity 631, wherein the gas inlet of the inner ring injection pipe 62 is opposite to the inner ring nozzle 2, and the gas inlet of the outer ring injection pipe 64 is opposite to the outer ring nozzle 3.
The inner gas mixing cavity 611 is a cavity with an upward opening and can contain mixed gas, the inner ring injection pipe 62 is tubular, the upper end of the inner ring injection pipe 62 is located in the inner gas mixing cavity 611, the lower end of the inner ring injection pipe 62 extends out of the inner gas mixing cavity 611 and faces the inner ring nozzle 2, the inner ring nozzle 2 injects fuel gas to the inner ring injection pipe 62, and external air is injected into the inner ring injection pipe 62 and enters the inner gas mixing cavity 611 together with the fuel gas.
Outer gas mixing cavity 631 can the holding gas mixture, and outer gas mixing cavity 631 is the annular cavity, and interior gas mixing cavity 611 and outer gas mixing cavity 631 coaxial setting are convenient for the pan even heating. The outer ring injection pipe 64 is tubular, the lower end of the outer ring injection pipe 64 corresponds to the outer ring nozzle 3, the upper end of the outer ring injection pipe 64 is communicated with the outer gas mixing cavity 631, the outer ring nozzle 3 sprays fuel gas to the outer ring injection pipe 64, and external air is injected into the outer ring injection pipe 64 and enters the outer gas mixing cavity 631 together with the fuel gas.
As shown in fig. 8, the inside of the outer air mixing cavity 631 is separated into a plurality of air mixing units 66 by the barrier 65, and each air mixing unit 66 corresponds to at least one outer air mixing cavity 631. In the embodiment shown in fig. 8, two partitions 65 are symmetrically arranged in the outer air mixing cavity 631 to form two air mixing units 66, and the middle of each air mixing unit 66 is provided with an air outlet connected with the outer ring injection pipe 64. By providing the air mixing units 66, the influence of the external air flow on the outer ring flame is reduced, for example, when the air flow fluctuation of the external environment due to windowing or air conditioning causes the air in one air mixing unit 66 to be unstable, the influence of the air mixing unit 66 on the air flow fluctuation of the other air mixing unit 66 is weakened due to the existence of the grid 65, and therefore, the stability of the flame is improved.
In the embodiment of the invention, the outer ring injection pipe 64 gradually extends upwards from one end of the air inlet to the other end of the air inlet so as to enlarge the flow path of the mixed gas and fully mix the fuel gas and the air, thereby improving the heat efficiency.
In the embodiment of the invention, the air outlet of the outer ring injection pipe 64 is of a contraction structure, that is, the aperture of the air outlet of the outer ring injection pipe 64 is smaller than the apertures of other parts, so that when the upper air inlet burner 100 stops working, less mixed gas stays at the air outlet of the outer ring injection pipe 64, the detonation phenomenon caused by the mixed gas impacting the inner wall surface of the outer ring injection pipe 64 is reduced, and the combustion stability is improved. Preferably, the diameter of the outer ring ejector tube 64 from its inlet to its outlet is gradually reduced to achieve higher combustion stability.
Please refer to fig. 1 and fig. 4-9 for understanding. In the embodiment of the invention, the air mixing chamber 6 further comprises a shielding structure 67, the shielding structure 67 covers the outer ring nozzle seat 13 and the outer ring nozzle 3, and the shielding structure 67 shields the outer ring nozzle seat 13 and the outer ring nozzle 3, so that the overflowing liquid is prevented from falling on the outer ring nozzle seat 13 and the outer ring nozzle 3 to cause blockage, and the cleaning difficulty is reduced. In specific implementation, the shielding structure 67 may be formed by protruding outward from the inner air mixing cavity 611; the shielding structure 67 may only shield the outer ring nozzle holder 13 and the outer ring nozzle 3, or may be an annular structure, and a local position of the shielding structure 67 is located right above the outer ring nozzle holder 13 and the outer ring nozzle 3.
In an embodiment of the present invention, the shielding structure 67 may further be used to guide the overflow liquid to a position far away from the center of the upper inlet burner 100.
The shielding structure 67 includes a shielding plate 671, the shielding plate 671 is annular as a whole and extends outward from the inner air mixing cavity 611, and the shielding plate 671 has a shielding effect on the outer ring nozzle seat 13 and the outer ring nozzle 3. The shielding plate 671 includes an inclined portion 672, the inclined portion 672 is gradually inclined downward from a position close to the center of the air-mixing chamber 6 to a position far from the center of the air-mixing chamber 6, and the inclined portion 672 can effectively guide the overflowing liquid to a position far from the center of the base 1. In addition, a gap is provided between the shielding structure 67 and the outer air mixing chamber 631, thereby forming the secondary air passage 7.
The shielding plate 671 further includes a flat plate portion 673, the flat plate portion 673 is annular, an inner ring of the flat plate portion 673 is connected with the inner air mixing cavity 611 and smoothly transits with the inner air mixing cavity 611, and an outer ring of the flat plate portion 673 is connected with the inclined portion 672 and smoothly transits with the inclined portion 672. The flat plate portion 673 is provided with positioning holes corresponding to the mounting holes 133 at the upper and lower sides thereof for positioning, and for example, after the ignition needle 4 is fixed to the mounting holes 133, the ignition needle 4 passes through the positioning holes corresponding to the mounting holes 133 and the positional relationship between the air mixing chamber 6 and the base 1 is restricted. Indeed, the positioning relationship between the base 1 and the air mixing chamber 6 can be realized by the positioning column 134 and the shielding plate 671, for example, the shielding plate 671 is provided with a positioning groove 674, the shape of the positioning groove 674 is consistent with the shape of the upper end of the positioning column 134, and the positioning column 134 is inserted into the positioning groove 674 to realize positioning. In specific implementation, the positioning groove 674 may be disposed at a position where the inclined portion 672 and the flat plate portion 673 are connected, so that the outer ring nozzle 3 faces the outer ring ejection pipe 64 extending from the opposite side and the mounting hole 133 is located right below the flat plate portion 673.
The shielding structure 67 further includes a flow blocking plate 675 disposed at the outer ring injection pipe 64, an upper end of the flow blocking plate 675 is connected to an edge of the shielding plate 671, a lower end of the flow blocking plate 675 has a notch, and the flow blocking plate 675 is an arc plate extending around a central axis of the upper inlet burner 100.
In the embodiment of the present invention, the air mixing chamber 6 further includes an inner air mixing structure 61 and an outer air mixing structure 63 connected by an outer ring injection pipe 64, an inner air mixing cavity 611 with an upward opening is formed on the inner air mixing structure 61, the surface of the inner air mixing structure 61 extends outward to form the shielding structure 67, the outer air mixing structure 63 includes an outer air mixing cavity 631, and a secondary air channel 7 is formed between the outer air mixing structure 63 and the shielding structure 67.
Wherein, the outer loop draws penetrates pipe 64 and can realize mixing the gas structure 61 with the inlayer through connecting sheltering from structure 67 and be connected, draws through the outer loop to penetrate pipe 64 and connect inlayer and mix gas structure 61 and outer gas structure 63 and improved the stability of mixing gas chamber 6. Outer gas mixing structure 63 is the annular, encircle the setting of inner gas mixing structure 61, secondary air passageway 7 that outer gas mixing structure 63 and formation between sheltering from structure 67 provide the passageway for the root of air flow direction flame, because the existence of the slope 672 of shielding plate 671, the air quantity that secondary air passageway 7 can supply to flow through increases, slope 672 has also formed the guide effect to the air current simultaneously, the guide air current flows steadily to the position and upwards flow between inner gas mixing structure 61 and the outer gas mixing structure 63, the disturbance of air current has been reduced, the stability of burning has been improved.
In the embodiment of the present invention, the upper inlet burner 100 further includes an inner ring fire cover 8, the inner ring fire cover 8 is disposed at the opening of the inner gas mixing cavity 611, the inner ring fire cover 8 covers the inner layer gas mixing structure 61, and a fire outlet is disposed on a side surface of the inner ring fire cover 8 for forming an inner ring flame. The upper air inlet burner 100 further comprises an outer ring fire cover 9, the outer ring fire cover 9 covers the outer layer gas mixing structure 63, the outer ring fire cover 9 is arranged at the opening of the outer gas mixing cavity 631, and a fire outlet is formed in the upper surface of the outer ring fire cover 9 and used for forming outer ring flame. The upper surface of the outer ring fire cover 9 may be a surface gradually inclined downward from the inner ring to the outer ring.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (13)
1. An upper inlet burner comprising a base, an inner ring nozzle and an outer ring nozzle, the base comprising:
the mounting plate is provided with an upward plate surface;
the inner ring nozzle seat is arranged in the middle of the disc surface;
the fuel gas injection nozzle comprises at least one outer ring nozzle seat arranged on the disc surface, an outer ring nozzle used for injecting fuel gas obliquely upwards is arranged on the side surface of the outer ring nozzle seat, and a mounting hole extending in the vertical direction is further formed in at least one outer ring nozzle seat.
2. The upper inlet air burner of claim 1, wherein the outer ring nozzle holder includes a first mounting portion, at least one of the outer ring nozzle holders further includes a second mounting portion integrally formed with the first mounting portion, one of the outer ring nozzle holders is disposed at a side of the first mounting portion, and the mounting hole is disposed at the second mounting portion.
3. The upper inlet burner of claim 2, wherein a plurality of the outer ring nozzle holders are disposed on the disk face, each of the outer ring nozzle holders being disposed around the inner ring nozzle holder.
4. The upper air inlet burner as claimed in claim 2, wherein the upper end surface of the first mounting portion is provided with a positioning column which protrudes upwards, and the positioning column has a structure with a narrow upper part and a wide lower part.
5. The upper inlet air burner as claimed in claim 1, wherein the upper inlet air burner has two outer ring nozzle holders positioned at both sides of the inner ring nozzle holder, the mounting hole of one of the outer ring nozzle holders is for mounting a firing pin, and the mounting hole of the other outer ring nozzle holder is for mounting a thermocouple.
6. The upper inlet air burner as claimed in claim 1, wherein the center of the mounting disk is upwardly protruded to form the inner ring nozzle holder, and the inner ring nozzle holder is in a short tube shape.
7. The upper air inlet burner of claim 1, further comprising an air mixing chamber, wherein the air mixing chamber comprises an inner air mixing cavity, an inner ring injection pipe communicated with the inner air mixing cavity, an outer air mixing cavity and an outer ring injection pipe communicated with the outer air mixing cavity, an air inlet of the inner ring injection pipe faces the inner ring nozzle, and an air inlet of the outer ring injection pipe faces the outer ring nozzle.
8. The upper intake burner of claim 7, wherein the outer ring ejector pipe gradually extends upwards from one end of the intake port to the other end of the intake port, and/or the outlet of the outer ring ejector pipe is of a contracted structure, and/or the outer gas mixing cavity is separated into a plurality of gas mixing units through barriers, and each gas mixing unit corresponds to at least one outer gas mixing cavity.
9. The upper inlet air burner of claim 7, wherein the plenum further comprises a shield structure covering directly above the outer ring nozzle seat and the outer ring nozzle.
10. The upper intake burner of claim 9, wherein the shielding structure comprises a shielding plate comprising an inclined portion that gradually slopes downward from a position near the center of the plenum to a position away from the center of the plenum.
11. The upper intake burner of claim 10,
the shielding plate also comprises an annular flat plate part, the inner ring of the flat plate part is connected with the inner gas mixing cavity, the outer ring of the flat plate part is connected with the inclined part, and the flat plate part is provided with positioning holes which vertically correspond to the mounting holes;
and/or, the sheltering structure further comprises a flow baffle arranged at the position of the outer ring injection pipe, the upper end of the flow baffle is connected with the edge of the sheltering plate, the lower end of the flow baffle is provided with a notch, and the flow baffle surrounds an arc plate extending around the central shaft of the upper air inlet burner.
12. The upper intake burner of claim 9, wherein the air mixing chamber further comprises an inner air mixing structure and an outer air mixing structure connected through the outer ring injection pipe, the inner air mixing structure forms the inner air mixing cavity, the surface of the inner air mixing structure extends outwards to form the shielding structure, the outer air mixing structure comprises the outer air mixing cavity, and a secondary air passage is formed between the outer air mixing structure and the shielding structure.
13. The upper intake burner of claim 7,
the upper air inlet burner also comprises an inner ring fire cover, the inner ring fire cover is arranged at the opening of the inner gas mixing cavity, and a fire outlet is formed in the side surface of the inner ring fire cover; and/or the presence of a gas in the gas,
the upper air inlet burner further comprises an outer ring fire cover, the outer ring fire cover is arranged at the opening of the outer gas mixing cavity, and a fire outlet is formed in the upper surface of the outer ring fire cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110858859.6A CN113685815A (en) | 2021-07-28 | 2021-07-28 | Upper air inlet burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110858859.6A CN113685815A (en) | 2021-07-28 | 2021-07-28 | Upper air inlet burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113685815A true CN113685815A (en) | 2021-11-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110858859.6A Pending CN113685815A (en) | 2021-07-28 | 2021-07-28 | Upper air inlet burner |
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| Country | Link |
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| CN (1) | CN113685815A (en) |
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|---|---|---|---|---|
| KR20110068597A (en) * | 2009-12-16 | 2011-06-22 | 박명선 | Gas burner |
| EP3404324A1 (en) * | 2017-05-15 | 2018-11-21 | BSH Hausgeräte GmbH | Burner cap of burner used for gas cooktop, burner head, burner, and gas cooktop |
| CN110762523A (en) * | 2018-07-28 | 2020-02-07 | 宁波方太厨具有限公司 | Gas burner with strong injection force and gas stove with burner |
| CN211060193U (en) * | 2019-09-04 | 2020-07-21 | 浙江绍兴苏泊尔生活电器有限公司 | Liquid collection component, combustor and stove with same |
| CN211451021U (en) * | 2020-01-16 | 2020-09-08 | 陈曙光 | Completely upper air inlet furnace head and stove with same |
| CN112240549A (en) * | 2019-07-17 | 2021-01-19 | 宁波方太厨具有限公司 | Completely upper air inlet type burner |
| CN112283755A (en) * | 2020-11-27 | 2021-01-29 | 迅达科技集团股份有限公司 | Complete upper air inlet double-cyclone burner |
-
2021
- 2021-07-28 CN CN202110858859.6A patent/CN113685815A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110068597A (en) * | 2009-12-16 | 2011-06-22 | 박명선 | Gas burner |
| EP3404324A1 (en) * | 2017-05-15 | 2018-11-21 | BSH Hausgeräte GmbH | Burner cap of burner used for gas cooktop, burner head, burner, and gas cooktop |
| CN110762523A (en) * | 2018-07-28 | 2020-02-07 | 宁波方太厨具有限公司 | Gas burner with strong injection force and gas stove with burner |
| CN112240549A (en) * | 2019-07-17 | 2021-01-19 | 宁波方太厨具有限公司 | Completely upper air inlet type burner |
| CN211060193U (en) * | 2019-09-04 | 2020-07-21 | 浙江绍兴苏泊尔生活电器有限公司 | Liquid collection component, combustor and stove with same |
| CN211451021U (en) * | 2020-01-16 | 2020-09-08 | 陈曙光 | Completely upper air inlet furnace head and stove with same |
| CN112283755A (en) * | 2020-11-27 | 2021-01-29 | 迅达科技集团股份有限公司 | Complete upper air inlet double-cyclone burner |
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Application publication date: 20211123 |
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