CN117433018B - Three-ring direct-injection burner - Google Patents

Three-ring direct-injection burner Download PDF

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Publication number
CN117433018B
CN117433018B CN202311763611.7A CN202311763611A CN117433018B CN 117433018 B CN117433018 B CN 117433018B CN 202311763611 A CN202311763611 A CN 202311763611A CN 117433018 B CN117433018 B CN 117433018B
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CN
China
Prior art keywords
ring
nozzle
fire
flame
base
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Application number
CN202311763611.7A
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Chinese (zh)
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CN117433018A (en
Inventor
李静师
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Foshan Yuyu Hardware Co ltd
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Foshan Yuyu Hardware Co ltd
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Priority to CN202311763611.7A priority Critical patent/CN117433018B/en
Publication of CN117433018A publication Critical patent/CN117433018A/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
    • 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
    • F23D14/32Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • 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
    • 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention relates to the technical field of kitchen range burners, and discloses a three-ring direct-injection burner, which is provided with a base, wherein a distributor is arranged on the base, a premixing cavity is arranged between the base and the distributor, a direct-injection type central fire component is arranged on the base, the direct-injection type central fire component comprises a high-pressure gas nozzle module and a burner, the high-pressure gas nozzle module is detachably arranged on the base, the burner is positioned in a central burner hole, the high-pressure gas nozzle module and the burner are vertically corresponding, a premixing area is arranged between the high-pressure gas nozzle module and the burner, and the premixing area is positioned in the premixing cavity; the flame of the three-ring direct-injection burner can be output from the center to form minimum fire, the flame can still form higher height, the flame in the center is more violent than the traditional flame, the contact with a cooker is facilitated, and the heat transfer efficiency is improved.

Description

Three-ring direct-injection burner
Technical Field
The invention relates to the technical field of kitchen range burners, in particular to a three-ring direct-injection burner.
Background
At present, a fire distributor of a three-ring burner in the prior art comprises a fire cover which is divided into a central fire cover, an inner ring fire cover and an outer ring fire cover, and a burner comprises a central injection pipe, an inner ring injection pipe and an outer ring injection pipe, so that flames distributed in three rings can be output.
As disclosed in chinese patent document CN110186041a, the three-ring burner includes a three-ring combustion assembly, the three-ring combustion assembly includes an air intake assembly and a burner assembly, the burner assembly is disposed on an upper portion of the air intake assembly, the air intake assembly is provided with three air intake passages, the burner assembly is provided with three combustion passages, and the three combustion passages respectively correspond to the three air intake passages.
According to the description and the drawings disclosed in the prior art, the outer wall of the inner fire cover of the three-ring burner is provided with the inner fire hole and the middle fire hole, that is, flame layers output by the inner fire hole and the middle fire hole are basically positioned on the outer wall of the inner fire cover, but the central position of the inner fire cover cannot output flame, so that when the inner fire is started to the minimum fire, the combustion can be performed only through the outer edge of the inner fire cover, the inner fire hole has no supercharging effect in the premixing process, and when the inner fire is the minimum fire, the flame of the inner fire hole is weak, and the cooking process can only be transmitted by rising generated heat, thereby influencing the heat utilization.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a three-ring direct-injection burner, which aims to solve the problem that the flame is weak when the central flame ring in the three-ring burner in the prior art does not have a pressurizing effect to cause the minimum flame, so that the flame cannot directly contact with a cooker for heat transfer.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a tricyclic direct injection combustor, its has the base, the base is erect on the flame divider, be provided with the premix chamber between base and the flame divider, be provided with on the base with the first intake pipe and the second intake pipe that are linked together in premix chamber, install direct injection type center fire subassembly on the base, be provided with outer firering and interior firering on the flame divider, the central point of interior firering puts and is provided with the center fire hole, direct injection type center fire subassembly is corresponding with the center fire hole, direct injection type center fire subassembly includes high-pressure gas spray nozzle module and burner, high-pressure gas spray nozzle module demountable installation is on the base, the burner is located the center fire hole, high-pressure gas spray nozzle module and burner correspond from top to bottom, be provided with the premix region between high-pressure gas spray nozzle module and the burner, the premix region is located in the premix chamber.
The direct-injection type central fire assembly has the advantages that the direct-injection type central fire assembly is arranged at the central position of the inner fire ring, fuel gas is sprayed out from the fire nozzle through the high-pressure fuel gas nozzle module under high pressure, meanwhile, when the fuel gas is sprayed out, the fuel gas firstly passes through the premixing area, and because the fuel gas is sprayed out and is output upwards, air in the premixing cavity is pumped into the premixing area, so that the fuel gas is mixed with the air, and then the fuel gas is output from the fire nozzle for combustion, the outer wall of the inner fire ring is not required to be provided with a plurality of fire ring holes again, the flame can be output from the center to form the smallest fire, the flame still can form higher height, and the central flame is more strong than the traditional flame, so that the central flame is more beneficial to contacting with a pot, and the heat transfer efficiency is improved; the base and the high-pressure gas nozzle module can be detached, so that the maintenance is more convenient.
Further, the high-pressure gas nozzle module comprises a nozzle barrel, one end of the nozzle barrel is arranged on the base in a penetrating mode, a first conical head is arranged on the end face of the other end of the nozzle barrel, a gas spray hole is formed in the end face of the first conical head, the flame nozzle comprises a connecting ring, a second conical head is arranged at one end of the connecting ring, a flame spraying opening is formed in the second conical head, and the gas spray hole corresponds to the flame spraying opening.
After adopting above-mentioned further structure, the one end that first conical head was kept away from to the nozzle barrel can insert the gas pipe, and after the gas got into the nozzle barrel, because the internal diameter shrink of first conical head, gas had the pressure boost effect when gas orifice output for gas spun is fast, and after the gas was spouted with air in advance, in getting into the link ring, and output from the second conical head, likewise, the second conical head also had the pressure boost effect, makes the gas blowout after the premixing, thereby realizes that the height of flame is higher relatively.
Further, the inner diameter of the gas jet orifice is 0.1-1mm.
After adopting above-mentioned further structure, when gas orifice blowout gas, pressure is higher, and the pressure boost effect is better.
Further, a clamping groove is formed in the base, mounting holes are formed in two sides of the clamping groove, through holes are formed in the two sides of the clamping groove, a polygon ring is arranged in the middle of the nozzle cylinder, external threads are arranged on the outer wall of the nozzle cylinder, the polygon ring is clamped on a mounting seat, the mounting seat is clamped in the clamping groove and connected with the mounting holes through screws, so that the lower portion of the nozzle cylinder penetrates through the base, and the upper portion of the nozzle cylinder penetrates through the mounting seat
After adopting above-mentioned further structure, the nozzle barrel can conveniently install on the base, dismantles simply, is convenient for maintain.
Further, the upper part of the nozzle cylinder body is detachably provided with a buffering premix pipe, the buffering premix pipe is communicated with the premix cavity, so that the premixing area is formed in the buffering premix pipe, and one end, close to the flame nozzle, of the buffering premix pipe is detachably connected with the flame nozzle.
After adopting above-mentioned further structure, under the effect of buffering premix pipe, after the gas was spouted from the gas orifice pressure boost, when entering buffering premix pipe, can cushion pressure now for gas and air can reentrant nozzle in the pressure boost output after repeated mixing, and the premixing effect is better, and flame combustion is more abundant.
Further, be provided with wide mouth section and narrow mouth section on the buffering premix pipe, a plurality of air inlets have been seted up on the outer wall of wide mouth section, the inner wall of wide mouth section is provided with the internal thread corresponding with the external screw thread, the outer wall that the narrow mouth section is close to burner one end is provided with the screw thread section, the go-between is connected with the screw thread section, wide mouth section and narrow mouth section are integrated into one piece structure, the internal diameter of wide mouth section is greater than the internal diameter of narrow mouth section, the internal diameter of narrow mouth section is greater than the internal diameter of the flaming mouth of second conical head.
After adopting above-mentioned further structure, gas is from gas orifice pressure boost blowout wide mouth section of entering earlier for air gets into from the air inlet, make the pressure of gas appear buffering, simultaneously, after gas and air enter into the narrow mouth section, gas and air export from the burner after further mixing, because the internal diameter of flame throwing mouth is less than the narrow mouth section, narrow mouth section internal diameter is less than wide mouth section simultaneously, make the gas after mixing have pressure in the narrow mouth section, thereby pressure when realizing flame throwing out in mouth department increases, the height of flame is higher relatively, under minimum fire state, the heat utilization ratio is more guaranteed.
Further, the first air inlet pipe is further communicated with a third air inlet pipe, a nozzle seat is arranged in the middle of the base and is communicated with the third air inlet pipe, one end of the nozzle barrel, far away from the first conical head, is in threaded connection in the nozzle seat, and a non-contact state is formed between the high-pressure gas nozzle module and the flame nozzle.
After adopting above-mentioned further structure, after the gas was sprayed from gas orifice pressure boost, gas and air contact before getting into the burner to bring partial air into the burner, make air and gas export again after mixing in the burner, can reach the effect of pressure boost equally, the structure is simpler, and the installation of nozzle barrel is more convenient moreover.
Further, a ring seat is arranged in the central fire hole, the outer wall of the connecting ring is connected with the ring seat, the connecting ring and the ring seat are of an integrated structure, a plurality of secondary oxygen supply ports are formed in the ring seat, and the secondary oxygen supply ports are communicated with the premixing cavity.
After adopting above-mentioned further structure, because the burner has certain pressure when exporting the mixed gas, ambient air can be squeezed into, and secondary oxygen port can be better follow the premix chamber suction air, provides secondary oxygen for the flame combustion in-process, and the burning is more abundant.
Further, an outer air cavity groove and an inner air cavity groove are formed in the distributor, the outer air cavity groove is communicated with the first air inlet pipe, the inner air cavity groove is communicated with the second air inlet pipe, the outer fire ring cover is arranged on the outer air cavity groove, and the inner fire ring cover is arranged on the inner air cavity groove.
After adopting above-mentioned further structure, outer firering and interior firering can carry out independent air feed output, and the burner of cooperation central point to form the triple ring fire, the flame of central point in addition puts under the effect of high-pressure output gas, to the pan bottom contact after, can disperse and contact the pan all around, central temperature is higher, and the heat utilization efficiency is higher.
Drawings
Fig. 1 is a schematic perspective view of a three-ring direct injection burner according to a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a base, a distributor and a direct injection center fire assembly according to a first embodiment of the present invention.
Fig. 3 is a schematic perspective view of a direct injection type central fire assembly according to a first embodiment of the present invention.
Fig. 4 is an exploded view of a direct injection type central fire assembly according to a first embodiment of the present invention.
Fig. 5 is a schematic perspective view of a fire distributor according to a first embodiment of the present invention.
Fig. 6 is a schematic perspective view of a base according to a first embodiment of the invention.
Fig. 7 is a schematic perspective view of a three-ring direct injection burner according to a second embodiment of the present invention.
Fig. 8 is a schematic cross-sectional view of an inner ring according to a second embodiment of the present invention.
Fig. 9 is a schematic perspective view of a base according to a second embodiment of the invention.
Fig. 10 is a schematic cross-sectional view of a base according to a second embodiment of the present invention.
In the figure: the flame distributor comprises a base 1, a flame distributor 2, a first air inlet pipe 3, a second air inlet pipe 4, an outer flame ring 5, an inner flame ring 6, a central flame hole 7, a direct injection type central flame assembly 8, a mounting seat 9, a first screw hole 10, a high-pressure fuel injection nozzle module 11, a flame nozzle 12, a buffering premixing tube 13, a polygonal ring 14, a nozzle barrel 15, an external thread 16, a first conical head 17, a fuel gas injection hole 18, a connecting ring 19, a second conical head 20, a wide-mouth section 21, a narrow-mouth section 22, an internal thread 23, an air inlet 24, a through hole 25, a clamping groove 26, a second screw hole 27, an outer air cavity groove 28, an inner air cavity groove 29, a ring seat 30, a third air inlet pipe 31 and a nozzle seat 32.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The three-ring direct injection burner is shown in combination with fig. 1 to 6, the three-ring direct injection burner is provided with a base 1, a distributor 2 is erected on the base 1, a premixing cavity is arranged between the base 1 and the distributor 2, a first air inlet pipe 3 and a second air inlet pipe 4 which are communicated with the premixing cavity are arranged on the base 1, a direct injection type central fire assembly 8 is arranged on the base 1, an outer fire ring 5 and an inner fire ring 6 are arranged on the distributor 2, a central fire hole 7 is arranged at the central position of the inner fire ring 6, the direct injection type central fire assembly 8 corresponds to the central fire hole 7, the direct injection type central fire assembly 8 comprises a high-pressure gas spray nozzle module 11 and a fire nozzle 12, the high-pressure gas spray nozzle module 11 is detachably arranged on the base 1, the fire nozzle 12 is positioned in the central fire hole 7, the high-pressure gas spray nozzle module 11 corresponds to the fire nozzle 12 up and down, a premixing area is arranged between the high-pressure gas spray nozzle module 11 and the fire nozzle 12, and the premixing area is positioned in the premixing cavity; in the embodiment, the direct-injection type central fire assembly 8 is arranged at the central position of the inner fire ring 6, the high-pressure gas is injected through the high-pressure gas nozzle module 11, so that the gas is output from the fire nozzle 12, meanwhile, when the gas is injected, the gas firstly passes through the premixing area, and because the gas is injected and is output upwards under high pressure, the air in the premixing cavity can be pumped into the premixing area, so that the gas and the air are mixed and then are output from the fire nozzle 12 for combustion, the outer wall of the inner fire ring 6 is not required to be provided with a plurality of fire ring holes again, the flame can be output from the central position to form the smallest fire, the flame still can form higher height, and the central flame is relatively strong and is more beneficial to contact with a pot, so that the heat transfer efficiency is improved; since the base 1 and the high-pressure gas nozzle module 11 can be detached, the maintenance is more convenient.
As shown in fig. 3 to 4, the high-pressure gas nozzle module 11 of the present embodiment includes a nozzle cylinder 15, one end of the nozzle cylinder 15 is arranged on the base 1 in a penetrating manner, the end surface of the other end is provided with a first conical head 17, the end surface of the first conical head 17 is provided with a gas spraying hole 18, the flame nozzle 12 includes a connecting ring 19, one end of the connecting ring 19 is provided with a second conical head 20, the second conical head 20 is provided with a flame spraying hole, and the gas spraying hole 18 corresponds to the flame spraying hole; the end of the nozzle cylinder 15 far away from the first conical head 17 can be connected with a gas pipe, after the gas enters the nozzle cylinder 15, the gas has a supercharging effect when being output from the gas spray hole 18 due to the shrinkage of the inner diameter of the first conical head 17, so that the gas is quickly sprayed out, after being sprayed out, the gas is premixed with air, enters the connecting ring 19 and is output from the second conical head 20, and likewise, the second conical head 20 also has a supercharging effect, so that the premixed gas is sprayed out, and the relatively higher flame height is realized.
It should be noted that, the inner diameter of the gas spraying hole 18 in this embodiment is 0.1-1mm, and when the gas spraying hole 18 sprays gas, the pressure is higher, and the supercharging effect is better.
As shown in fig. 6, a clamping groove 26 is formed in the base 1 of the embodiment, mounting holes are formed in two sides of the clamping groove 26, a through hole 25 is formed between the mounting holes on two sides, a polygonal ring 14 is arranged in the middle of the nozzle cylinder 15, an external thread 16 is arranged on the outer wall of the nozzle cylinder 15, the polygonal ring 14 is clamped on the mounting seat 9, the mounting seat 9 is clamped in the clamping groove 26 and connected with the mounting holes through screws, so that the lower part of the nozzle cylinder 15 penetrates through the base 1, and the upper part penetrates through the mounting seat 9; the nozzle cylinder 15 can be conveniently installed on the base 1, is easy to disassemble and is convenient to maintain.
It should be noted that the mounting base 9 may be provided with a first screw hole 10, and the mounting hole is a second screw hole 27, so that the mounting base may be fixed by a screw.
As shown in fig. 3 and 4, a buffer premix tube 13 is detachably mounted on the upper portion of the nozzle cylinder 15, and the buffer premix tube 13 is communicated with the premix chamber so that a premix zone is formed in the buffer premix tube 13, and one end of the buffer premix tube 13, which is close to the flame nozzle 12, is detachably connected with the flame nozzle 12; under the effect of the buffering premix pipe 13, after the gas is pressurized and sprayed out from the gas spraying hole 18, when entering the buffering premix pipe 13, the pressure can be buffered at present, so that the gas and the air can be repeatedly mixed and then enter the flame nozzle 12 for pressurizing and outputting, the premixing effect is better, and the flame combustion is more sufficient.
The buffering premixing tube 13 is provided with a wide-mouth section 21 and a narrow-mouth section 22, the outer wall of the wide-mouth section 21 is provided with a plurality of air inlets 24, the inner wall of the wide-mouth section 21 is provided with an internal thread 23 corresponding to the external thread 16, the outer wall of the narrow-mouth section 22 close to one end of the burner 12 is provided with a thread section, the connecting ring 19 is connected with the thread section, the wide-mouth section 21 and the narrow-mouth section 22 are of an integrated structure, the inner diameter of the wide-mouth section 21 is larger than the inner diameter of the narrow-mouth section 22, and the inner diameter of the narrow-mouth section 22 is larger than the inner diameter of the flaming mouth of the second conical head 20; the gas is pressurized and sprayed from the gas spraying hole 18 and firstly enters the wide-mouth section 21, so that air enters from the air inlet 24, the pressure of the gas is buffered, meanwhile, after the gas and the air enter the narrow-mouth section 22, the gas and the air are further mixed and then are output from the flame nozzle 12, and as the inner diameter of the flame-spraying mouth is smaller than that of the narrow-mouth section 22, the inner diameter of the narrow-mouth section 22 is smaller than that of the wide-mouth section 21, the mixed gas has pressure in the narrow-mouth section 22, so that the pressure increase at the flame-spraying mouth is realized, the height of flame is relatively higher, and the heat utilization rate is ensured under the minimum fire state.
It should be further noted that, since the lower portion of the nozzle cylinder 15 of the present embodiment penetrates the base 1, and the outer wall of the nozzle cylinder 15 has external threads, the gas pipe may be connected through the external threads.
The fire distributor 2 of the embodiment is provided with an outer air cavity groove 28 and an inner air cavity groove 29, the outer air cavity groove 28 is communicated with the first air inlet pipe 3, the inner air cavity groove 29 is communicated with the second air inlet pipe 4, the outer fire ring 5 is covered on the outer air cavity groove 28, and the inner fire ring 6 is covered on the inner air cavity groove 29; the outer fire ring 5 and the inner fire ring 6 can be used for independent air supply output and are matched with the fire nozzle 12 at the central position, so that three-ring fire is formed, and after the flames at the central position are contacted with the bottom of the cooker under the action of high-pressure output gas, the flames can be dispersed to the periphery and contact with the cooker, so that the central temperature is higher, and the heat utilization rate is higher.
Example two
As shown in fig. 7 to 10, the difference between the second embodiment and the first embodiment is that the first air inlet pipe 3 is further provided with a third air inlet pipe 31, the middle part on the base 1 is provided with a nozzle seat 32, the nozzle seat 32 is communicated with the third air inlet pipe 31, one end of the nozzle cylinder 15 far away from the first conical head 17 is in threaded connection in the nozzle seat 32, the high-pressure gas nozzle module 11 and the burner 12 are in a non-contact state, that is, the high-pressure gas nozzle module 11 and the burner 12 are in a disconnection state, after the gas is pressurized and sprayed from the gas spray hole 18, the gas contacts with air before entering the burner 12, and part of the air is brought into the burner 12, so that the air and the gas are mixed and then output in the burner 12, the pressurizing effect can be achieved, the structure is simpler, and the installation of the nozzle cylinder 15 is more convenient.
As shown in fig. 8, a ring seat 30 is arranged in the central fire hole 7, the outer wall of the connecting ring 19 is connected with the ring seat 30, the connecting ring 19 and the ring seat 30 are of an integrated structure, a plurality of secondary oxygen supply ports are arranged on the ring seat 30, and the secondary oxygen supply ports are communicated with the premixing cavity; because the flame nozzle 12 has a certain pressure when outputting the mixed gas, ambient air can be squeezed in, and the secondary oxygen supply port can better draw in air from the premixing cavity, so as to provide secondary oxygen for the flame combustion process, and the combustion is more sufficient.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.

Claims (5)

1. The three-ring direct-injection burner is characterized in that the base (1) is provided with a direct-injection central fire assembly (8), an outer fire ring (5) and an inner fire ring (6) are arranged on the distributor (2), a central fire hole (7) is arranged at the central position of the inner fire ring (6), the direct-injection central fire assembly (8) corresponds to the central fire hole (7), the direct-injection central fire assembly (8) comprises a high-pressure gas spray nozzle module (11) and a fire nozzle (12), the high-pressure gas spray nozzle module (11) is detachably arranged on the base (1), the fire nozzle (12) is positioned in the central fire hole (7), and the high-pressure gas spray nozzle module (11) corresponds to the pre-mixed area of the high-pressure gas spray nozzle (12);
the high-pressure gas nozzle module (11) comprises a nozzle cylinder body (15), one end of the nozzle cylinder body (15) is arranged on the base (1) in a penetrating mode, a first conical head (17) is arranged on the end face of the other end of the nozzle cylinder body, a gas spraying hole (18) is formed in the end face of the first conical head (17), the nozzle (12) comprises a connecting ring (19), a second conical head (20) is arranged at one end of the connecting ring (19), a fire spraying opening is formed in the second conical head (20), and the gas spraying hole (18) corresponds to the fire spraying opening;
the inner diameter of the gas jet orifice (18) is 0.1-1mm;
the upper part of the nozzle cylinder body (15) is detachably provided with a buffer premix tube (13), the buffer premix tube (13) is communicated with the premix cavity so that the premix area is formed in the buffer premix tube (13), and one end, close to the flame nozzle (12), of the buffer premix tube (13) is detachably connected with the flame nozzle (12);
the buffering premixing tube is characterized in that a wide opening section (21) and a narrow opening section (22) are arranged on the buffering premixing tube (13), a plurality of air inlets (24) are formed in the outer wall of the wide opening section (21), an inner thread (23) corresponding to the outer thread (16) is arranged on the inner wall of the wide opening section (21), a thread section is arranged on the outer wall, close to one end of the flame nozzle (12), of the narrow opening section (22), the connecting ring (19) is connected with the thread section, the wide opening section (21) and the narrow opening section (22) are of an integrated structure, and the inner diameter of the wide opening section (21) is larger than the inner diameter of the narrow opening section (22), and the inner diameter of the narrow opening section (22) is larger than the flame spraying mouth of the second conical head (20).
2. The three-ring direct injection burner according to claim 1, wherein the base (1) is provided with a clamping groove (26), mounting holes are formed in two sides of the clamping groove (26), through holes (25) are formed between the mounting holes in two sides, a polygonal ring (14) is arranged in the middle of the nozzle cylinder (15), external threads (16) are formed in the outer wall of the nozzle cylinder (15), the polygonal ring (14) is clamped on the mounting seat (9), and the mounting seat (9) is clamped in the clamping groove (26) and connected with the mounting holes through screws, so that the lower portion of the nozzle cylinder (15) penetrates through the base (1), and the upper portion of the nozzle cylinder (15) penetrates through the mounting seat (9).
3. The three-ring direct injection burner according to claim 1, wherein the first air inlet pipe (3) is further communicated with a third air inlet pipe (31), a nozzle seat (32) is arranged in the middle of the base (1), the nozzle seat (32) is communicated with the third air inlet pipe (31), one end, far away from the first conical head (17), of the nozzle cylinder (15) is in threaded connection in the nozzle seat (32), and a non-contact state is formed between the high-pressure gas nozzle module (11) and the flame nozzle (12).
4. A three-ring direct injection burner according to claim 3, wherein a ring seat (30) is arranged in the central fire hole (7), the outer wall of the connecting ring (19) is connected with the ring seat (30), the connecting ring (19) and the ring seat (30) are of an integrated structure, a plurality of secondary oxygen supply ports are formed in the ring seat (30), and a plurality of secondary oxygen supply ports are communicated with the premixing cavity.
5. The three-ring direct injection burner according to claim 1, wherein the distributor (2) is provided with an outer air cavity groove (28) and an inner air cavity groove (29), the outer air cavity groove (28) is communicated with the first air inlet pipe (3), the inner air cavity groove (29) is communicated with the second air inlet pipe (4), the outer fire ring (5) is covered on the outer air cavity groove (28), and the inner fire ring (6) is covered on the inner air cavity groove (29).
CN202311763611.7A 2023-12-21 2023-12-21 Three-ring direct-injection burner Active CN117433018B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311763611.7A CN117433018B (en) 2023-12-21 2023-12-21 Three-ring direct-injection burner

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CN212132427U (en) * 2020-04-14 2020-12-11 嵊州市云力厨具有限公司 Upper air inlet type combustor
CN213983555U (en) * 2020-09-30 2021-08-17 宁波风腾燃具有限公司 Central direct-injection type combustor
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CN218269056U (en) * 2022-07-05 2023-01-10 房永平 Stove burner with direct-injection suspension fire
CN219494089U (en) * 2023-03-16 2023-08-08 白海波 Direct injection burner

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SU1168778A1 (en) * 1983-05-20 1985-07-23 Usenko Yakov Ya Gas stove
CN2632503Y (en) * 2003-07-04 2004-08-11 湖南吉祥燃烧器股份有限公司 Low pressure premixed high performance energy saving and environment protecting gas burner with flat flame and less NOx exhaust
JP2010190570A (en) * 2010-05-06 2010-09-02 Osaka Gas Co Ltd Cooking stove
CN201790593U (en) * 2010-09-27 2011-04-13 浙江翔鹰厨房设备有限公司 Multi-loop fuel gas system
CN202303392U (en) * 2011-09-14 2012-07-04 谭接祥 Combustor of gas stove
CN202733902U (en) * 2012-08-17 2013-02-13 四川天健催化燃烧有限公司 Adjustable gas nozzle
CN205860114U (en) * 2016-07-22 2017-01-04 涂明舜 Energy-saving heavy furnace
CN206831503U (en) * 2017-03-15 2018-01-02 佛山市东鹏陶瓷有限公司 It is a kind of efficiently kiln burning bocca and use its kiln
CN109959000A (en) * 2017-12-26 2019-07-02 宁波方太厨具有限公司 A kind of burner for gas-cooker
CN212108398U (en) * 2019-12-25 2020-12-08 李亚帝 Gas output supercharging device
CN212132427U (en) * 2020-04-14 2020-12-11 嵊州市云力厨具有限公司 Upper air inlet type combustor
CN213983555U (en) * 2020-09-30 2021-08-17 宁波风腾燃具有限公司 Central direct-injection type combustor
WO2022151727A1 (en) * 2021-01-15 2022-07-21 湖南大兹动力科技有限公司 Pre-combustion chamber ignition internal combustion engine controlled by jet valve
CN114110584A (en) * 2021-12-22 2022-03-01 广东思利科智能科技有限公司 High-premixing upper air inlet type burner of numerical model
CN218269056U (en) * 2022-07-05 2023-01-10 房永平 Stove burner with direct-injection suspension fire
CN219494089U (en) * 2023-03-16 2023-08-08 白海波 Direct injection burner

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