CN116255618A - Double-premixing side air inlet furnace head - Google Patents

Double-premixing side air inlet furnace head Download PDF

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Publication number
CN116255618A
CN116255618A CN202111506198.7A CN202111506198A CN116255618A CN 116255618 A CN116255618 A CN 116255618A CN 202111506198 A CN202111506198 A CN 202111506198A CN 116255618 A CN116255618 A CN 116255618A
Authority
CN
China
Prior art keywords
base
burner
side wall
premixing cavity
air inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111506198.7A
Other languages
Chinese (zh)
Inventor
黄建东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Libang Kitchenware Co ltd
Original Assignee
Libang Kitchenware Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Libang Kitchenware Co ltd filed Critical Libang Kitchenware Co ltd
Priority to CN202111506198.7A priority Critical patent/CN116255618A/en
Publication of CN116255618A publication Critical patent/CN116255618A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/082—Arrangement or mounting of burners on stoves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/10—Arrangement or mounting of ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/122—Arrangement or mounting of control or safety devices on stoves
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

A double-premixing side air inlet furnace end comprises a base, a first premixing cavity and a second premixing cavity; the side wall of the base is provided with an air inlet, the side wall of the base is provided with an ignition needle, a flame tube and a thermocouple, and the bottom surface of the base is provided with a fuel gas inlet; the first premixing cavity comprises a sleeve and an inner joint, wherein the side wall of the inner joint is provided with an air passing groove, the sleeve is an annular groove, the side wall of the sleeve is communicated with the air passing joint, the sleeve is sleeved outside the inner joint, and the air passing groove is positioned in the annular groove; the second premixing cavity is of a groove-shaped structure, the side wall and the bottom surface of the second premixing cavity are uniformly provided with air passing through holes, and the center of the bottom surface of the second premixing cavity is provided with a burner mounting hole; one end of the inner joint is communicated with an air inlet on the side wall of the base, the second premixing cavity is arranged on the upper half part in the base, and a space is reserved between the side wall of the second premixing cavity and the inner wall of the base; a burner is arranged between the bottom surface of the second premixing cavity and the bottom surface of the base, the top end of the burner is fixed in the burner mounting hole, and the bottom end of the burner is communicated with the gas inlet; the top end of the base is also provided with a fire-pressing ring.

Description

Double-premixing side air inlet furnace head
Technical Field
The invention relates to kitchen equipment, in particular to a double-premixing side air inlet burner.
Background
The kitchen is a core area for creating benefits for the catering industry, and in the increasingly strong competition of the catering industry market, the kitchen becomes a center of gravity of the catering industry for coping with market changes. In recent years, the catering industry has been greatly developed and improved, and kitchen design technology, design concepts, equipment technology and energy-saving systems have also been greatly improved. However, the kitchen consumes a large amount of energy every day, and discharges a large amount of waste heat flue gas and kitchen waste, so that the energy is saved, the energy consumption of the kitchen is reduced, the pollutant discharge is reduced, and the energy-saving kitchen is one of important indexes of kitchen. Once the kitchen is opened, the fuel consumption in the cooking process of dishes, the daily drinking boiled water and hot water for washing in the kitchen, the food refrigeration and the high-power food processing mechanical equipment are all continuously consumed energy.
The fire point of the full premix type commercial gas furnace end in the prior art is at the middle position of the furnace, although water is convenient to enter, residues fall down to enter, the long-term service life of the full premix type commercial gas furnace end is affected, and the problem that the combustion firepower is insufficient due to the fact that the traditional full premix type commercial gas furnace end design is low in gas mixing efficiency is also solved.
Disclosure of Invention
In order to solve the problems, the invention provides the following scheme:
a double-premixing side air inlet furnace end comprises a base, a first premixing cavity and a second premixing cavity; the top end of the base is opened, the side wall of the base is provided with an air inlet, the side wall of the base is provided with an ignition needle, a flame tube and a thermocouple, and the bottom surface of the base is provided with a fuel gas inlet; the first premixing cavity comprises a sleeve and an inner joint, the side wall of the inner joint is uniformly provided with a plurality of air passing grooves, the sleeve is an annular groove, the side wall of the sleeve is communicated with the air passing joint, the sleeve is sleeved outside the inner joint, and the air passing grooves are positioned in the annular groove; the second premixing cavity is of a groove-shaped structure, the side wall and the bottom surface of the second premixing cavity are uniformly provided with air passing through holes, and the center of the bottom surface of the second premixing cavity is provided with a burner mounting hole; one end of the inner joint is communicated with an air inlet on the side wall of the base, the second premixing cavity is arranged at the upper half part in the base, and a space is reserved between the side wall of the second premixing cavity and the inner wall of the base; a burner is arranged between the bottom surface of the second premixing cavity and the bottom surface of the base, the top end of the burner is fixed in the burner mounting hole, and the bottom end of the burner is communicated with the gas inlet; the top end of the base is also provided with a fire-pressing ring.
Further, the burner comprises a nozzle and an air inlet connector, an air inlet is formed in the side wall of the air inlet connector, the air inlet connector is connected with the nozzle through a connecting flange, the lower end of the connecting flange is embedded into the upper end of the air inlet connector, the upper end of the connecting flange is embedded into the lower end of the nozzle, and the top end of the nozzle is embedded into a burner mounting hole in the bottom surface of the second premixing cavity.
Further, the nozzle comprises a cylindrical shell, an air vent column is concentrically arranged in the shell, a plurality of flame spraying holes are uniformly formed in the bottom end of the side wall of the air vent column, a blocking cover is arranged at the top end of the air vent column, and the outer diameter of the blocking cover is larger than the outer diameter of the air vent column and smaller than the inner diameter of the shell.
Further, a nozzle mounting groove is formed in the center of the bottom surface of the second premixing cavity downwards, a burner mounting hole is formed in the center of the bottom surface of the nozzle mounting groove, and the nozzle is arranged in the nozzle mounting groove.
Further, the bottom surface of the nozzle mounting groove is also provided with a liquid discharge hole.
Further, a second premix chamber mounting groove is formed in the opening of the top end of the base downwards, an embedding surface is outwards extended from the top end of the second premix chamber, and when the second premix chamber is placed into the base, the embedding surface is embedded into the second premix chamber mounting groove.
Further, the side wall of the base is also provided with a mounting block, three through holes are formed in the mounting block from top to bottom, and an ignition needle, a flame tube and a thermocouple are respectively arranged in the through holes.
Further, the diameter of the fire ring is gradually increased from top to bottom, the diameter of the lower end of the fire ring is the same as that of the top end of the base, the side wall of the fire ring is provided with a mounting block cover corresponding to the mounting block, and the mounting block cover is used for mounting an ignition needle, a flame tube and a thermocouple top end sealing cover in the mounting block.
Further, the height axis of the air passing through hole forms an included angle of 20 degrees with the horizontal direction and forms an included angle of 20 degrees with the vertical surface.
The beneficial effects of the invention are as follows:
1. the first premixing cavity and the second premixing cavity are arranged, so that fuel gas and air are fully premixed, the combustion efficiency of the fuel gas is enhanced, and the thermal efficiency is effectively improved;
2. the center of the bottom surface of the second premixing cavity is downwards provided with a nozzle mounting groove, so that the service life of the nozzle principle flame is prolonged;
3. the bottom of the nozzle mounting groove is provided with a liquid discharge hole, so that liquid is prevented from entering the nozzle mounting groove to form liquid accumulation;
4. the gas passing through holes of the second premixing cavity are arranged in an inclined mode, the whole gas passing through holes are connected in a spiral mode, and mixed gas is enabled to be scattered in a vortex mode after passing through the gas passing through holes, and gas combustion is more complete.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic diagram of a first premix chamber;
FIG. 3 is a schematic diagram of a second premix chamber;
FIG. 4 is a schematic view of a burner configuration;
FIG. 5 is a schematic view of a nozzle structure;
in the figure: 1. a fire ring; 2. a second premix chamber; 3. a burner; 4. an air inlet; 5. a first premix chamber; 6. a base; 7. a mounting block; 8. a thermocouple; 9. miao Huoguan; 10. an ignition needle; 11. a mounting block cover; 12. a gas passing joint; 13. an inner joint; 14. a sleeve; 15. a gas passing groove; 16. a gas passing through hole; 17. a nozzle mounting groove; 18. a burner mounting hole; 19. a liquid discharge hole; 20. a nozzle; 21. a connecting flange; 22. an air inlet joint; 23. an air inlet; 24. a housing; 25. an air-passing column; 26. a flame spraying hole; 27. and a blocking cover.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
Example 1: as shown in figures 1-5 of the drawings,
a double-premixing side air inlet furnace end comprises a base 6, a first premixing cavity 5 and a second premixing cavity 2; the top end of the base 6 is opened, the side wall of the base 6 is provided with an air inlet 4, the side wall of the base 6 is provided with an ignition needle 10, a flame tube 9 and a thermocouple 8, and the bottom surface of the base 6 is provided with a fuel gas inlet; the first premixing cavity 5 comprises a sleeve 14 and an inner joint 13, a plurality of air passing grooves 15 are uniformly formed in the side wall of the inner joint 13, the sleeve 14 is an annular groove, the air passing joint 12 is communicated with the side wall of the sleeve 14, the sleeve 14 is sleeved outside the inner joint 13, and the air passing grooves 15 are positioned in the annular groove; the second premixing cavity 2 is of a groove-shaped structure, the side wall and the bottom surface of the second premixing cavity 2 are uniformly provided with through holes 16, and the center of the bottom surface of the second premixing cavity 2 is provided with a burner mounting hole 18; one end of the inner joint 13 is communicated with the air inlet 4 on the side wall of the base 6, the second premixing cavity 2 is arranged at the upper half part in the base 6, and a space is reserved between the side wall of the second premixing cavity 2 and the inner wall of the base 6; a burner 3 is arranged between the bottom surface of the second premixing cavity 2 and the bottom surface of the base 6, the top end of the burner 3 is fixed in a burner mounting hole 18, and the bottom end of the burner 3 is communicated with a fuel gas inlet; the top end of the base 6 is also provided with a fire-pressing ring 1.
Further, the burner 3 includes a nozzle 20 and an air inlet joint 22, an air inlet 23 is formed in the side wall of the air inlet joint 22, the air inlet joint 22 is connected with the nozzle 20 through a connecting flange 21, the lower end of the connecting flange 21 is embedded into the upper end of the air inlet joint 22, the upper end of the connecting flange 21 is embedded into the lower end of the nozzle 20, and the top end of the nozzle 20 is embedded into the burner mounting hole 18 on the bottom surface of the second premixing cavity 2.
Further, the nozzle 20 includes a cylindrical housing 24, an air column 25 is concentrically disposed in the housing 24, a plurality of flame holes 26 are uniformly formed at the bottom end of the side wall of the air column 25, a blocking cover 27 is disposed at the top end of the air column 25, and the outer diameter of the blocking cover 27 is larger than the outer diameter of the air column 25 and smaller than the inner diameter of the housing 24.
Further, a nozzle mounting groove 17 is formed in the center of the bottom surface of the second premixing cavity 2, a burner mounting hole 18 is formed in the center of the bottom surface of the nozzle mounting groove 17, and the nozzle 20 is arranged in the nozzle mounting groove 17.
Further, a drain hole 19 is also formed on the bottom surface of the nozzle mounting groove 17.
Further, a second premix chamber mounting groove is formed in the opening at the top end of the base 6, an embedding surface is outwards extended from the top end of the second premix chamber, and when the second premix chamber 2 is placed into the base 6, the embedding surface is embedded into the second premix chamber mounting groove.
Further, the side wall of the base 6 is also provided with a mounting block 7, three through holes are formed in the mounting block 7 from top to bottom, and an ignition needle 10, a flame tube 9 and a thermocouple 8 are respectively arranged in the through holes.
Further, the diameter of the firer 1 is gradually increased from top to bottom, the diameter of the lower end of the firer 1 is the same as that of the top end of the base 6, the side wall of the firer 1 is provided with a mounting block cover 11 corresponding to the mounting block 7, and the mounting block cover 11 seals the top ends of the ignition needle 10, the flame tube 9 and the thermocouple 8 in the mounting block 7.
Further, the height axis of the air passing through hole 16 forms an included angle of 20 degrees with the horizontal direction and forms an included angle of 20 degrees with the vertical plane.
A first premixing cavity 5 is arranged at the air inlet, the first premixing cavity 5 is communicated with an air pipe and an air pipe, when a fan is started, natural gas in the air pipe is accelerated to be brought into a sleeve 14 under the action of wind pressure, and enters an inner joint 13 through a circle of uniformly distributed gas passing grooves 15 on the inner joint 13, so that first premixing is realized; the second premixing cavity 2 is clamped on the base 6 with the cylindrical inner part, an annular space is formed between the second premixing cavity 2 and the inner wall of the base 6, and the mixed gas is more smoothly fed into the second premixing cavity 2, so that secondary premixing is realized. The second premixing cavity 2 is uniformly provided with the air passing through holes 16, and the air passing through holes 16 are obliquely arranged at 20 degrees, so that the mixed gas is in vortex type divergence, and the flame generated by combustion is more sufficient. The nozzle 20 of the burner 3 is provided with a blocking cover 27, and the blocking cover 27 blocks the flame spraying holes 26 in the nozzle 20 to prevent liquid from entering the flame spraying holes 26.
Finally, it should be noted that the above list is only specific embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.

Claims (9)

1. The utility model provides a two side air inlet furnace end that mix in advance which characterized in that: the device comprises a base, a first premixing cavity and a second premixing cavity; the top end of the base is opened, the side wall of the base is provided with an air inlet, the side wall of the base is provided with an ignition needle, a flame tube and a thermocouple, and the bottom surface of the base is provided with a fuel gas inlet; the first premixing cavity comprises a sleeve and an inner joint, the side wall of the inner joint is uniformly provided with a plurality of air passing grooves, the sleeve is an annular groove, the side wall of the sleeve is communicated with the air passing joint, the sleeve is sleeved outside the inner joint, and the air passing grooves are positioned in the annular groove; the second premixing cavity is of a groove-shaped structure, the side wall and the bottom surface of the second premixing cavity are uniformly provided with air passing through holes, and the center of the bottom surface of the second premixing cavity is provided with a burner mounting hole; one end of the inner joint is communicated with an air inlet on the side wall of the base, the second premixing cavity is arranged at the upper half part in the base, and a space is reserved between the side wall of the second premixing cavity and the inner wall of the base; a burner is arranged between the bottom surface of the second premixing cavity and the bottom surface of the base, the top end of the burner is fixed in the burner mounting hole, and the bottom end of the burner is communicated with the gas inlet; the top end of the base is also provided with a fire-pressing ring.
2. A dual premix side entry burner as defined in claim 1, wherein: the burner comprises a nozzle and an air inlet connector, an air inlet is formed in the side wall of the air inlet connector, the air inlet connector is connected with the nozzle through a connecting flange, the lower end of the connecting flange is embedded into the upper end of the air inlet connector, the upper end of the connecting flange is embedded into the lower end of the nozzle, and the top end of the nozzle is embedded into a burner mounting hole in the bottom surface of the second premixing cavity.
3. A dual premix side entry burner as defined in claim 2, wherein: the nozzle comprises a cylindrical shell, an air vent column is concentrically arranged in the shell, a plurality of flame spraying holes are uniformly formed in the bottom end of the side wall of the air vent column, a blocking cover is arranged at the top end of the air vent column, and the outer diameter of the blocking cover is larger than the outer diameter of the air vent column and smaller than the inner diameter of the shell.
4. A dual premix side air inlet burner as in claim 3, wherein: the center of the bottom surface of the second premixing cavity is downwards provided with a nozzle mounting groove, a burner mounting hole is formed in the center of the bottom surface of the nozzle mounting groove, and the nozzle is arranged in the nozzle mounting groove.
5. The dual premix side air intake burner of claim 4, wherein: the bottom surface of the nozzle mounting groove is also provided with a liquid discharge hole.
6. A dual premix side entry burner as defined in claim 1, wherein: the second premix chamber mounting groove is downwards formed in the opening of the top end of the base, the embedded surface outwards extends from the top end of the second premix chamber, and when the second premix chamber is placed into the base, the embedded surface is embedded into the second premix chamber mounting groove.
7. A dual premix side entry burner as defined in claim 1, wherein: the side wall of the base is also provided with a mounting block, three through holes are formed in the mounting block from top to bottom, and an ignition needle, a flame tube and a thermocouple are respectively arranged in the through holes.
8. The dual premix side air intake burner of claim 7, wherein: the diameter of the lower end of the fire-pressing ring is the same as the diameter of the top end of the base, the side wall of the fire-pressing ring is provided with a mounting block cover corresponding to the mounting block, and the mounting block cover is used for mounting an ignition needle, a flame tube and a thermocouple top end sealing cover in the mounting block.
9. A dual premix side entry burner as defined in claim 1, wherein: the height axis of the air passing through hole forms an included angle of 20 degrees with the horizontal direction and forms an included angle of 20 degrees with the vertical surface.
CN202111506198.7A 2021-12-10 2021-12-10 Double-premixing side air inlet furnace head Pending CN116255618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111506198.7A CN116255618A (en) 2021-12-10 2021-12-10 Double-premixing side air inlet furnace head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111506198.7A CN116255618A (en) 2021-12-10 2021-12-10 Double-premixing side air inlet furnace head

Publications (1)

Publication Number Publication Date
CN116255618A true CN116255618A (en) 2023-06-13

Family

ID=86681320

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111506198.7A Pending CN116255618A (en) 2021-12-10 2021-12-10 Double-premixing side air inlet furnace head

Country Status (1)

Country Link
CN (1) CN116255618A (en)

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