CN108426244B - Premixing furnace end - Google Patents
Premixing furnace end Download PDFInfo
- Publication number
- CN108426244B CN108426244B CN201810374130.XA CN201810374130A CN108426244B CN 108426244 B CN108426244 B CN 108426244B CN 201810374130 A CN201810374130 A CN 201810374130A CN 108426244 B CN108426244 B CN 108426244B
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- air
- air duct
- cup
- guide
- bin
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 38
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 33
- 239000002737 fuel gas Substances 0.000 abstract description 14
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
-
- 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
- F23D14/66—Preheating the combustion air or gas
-
- 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
- F23D14/70—Baffles or like flow-disturbing devices
-
- 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
- F23L1/00—Passages or apertures for delivering primary air for combustion
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention discloses a premixing furnace end, which comprises a furnace shell, wherein an air inlet is arranged on the furnace shell, an air channel cup which is vertically arranged is arranged on the inner side of the furnace shell, a combustion chamber is arranged on the inner side of the air channel cup, an air bin is formed between the outer side wall of the air channel cup and the inner side wall of the furnace shell at intervals, a guide air channel which extends outwards and is communicated with the air bin and the combustion chamber is arranged on the side wall of the air channel cup, a gas bin which is isolated from the air bin is arranged on one side of the guide air channel, a through hole which is communicated with the gas bin is arranged on the side wall of the guide air channel, an open opening is formed at the top of the air channel cup, and a gas pipe which is communicated with the gas bin is arranged on the outer wall of the furnace shell. The premixed burner provided by the invention can complete mixing of the fuel gas and the air before entering the combustion chamber, and the mixture is fully mixed, so that the mixed gas is combusted more fully in the combustion chamber, the energy conversion rate is higher, and the purposes of energy conservation, noise reduction and low cost are achieved.
Description
Technical Field
The invention relates to the field of stoves, in particular to a premixed stove head which is used for completing mixing of fuel gas and air when the fuel gas and the air enter the stove head.
Background
In current commercial stoves, air enters the burner through a conduit and is ejected from the side wall of the combustion chamber through distribution to mix with and burn the gas introduced into the burner combustion chamber through a gas pipe. This mixing is conventional external mixing. However, when burning, the gas starts burning when entering the combustion chamber, the mixing time of the gas and the air is too short, the mixing degree is low, the burning fire shape is long and overflows the hearth, the energy conversion efficiency is low, more gas needs to be input into the furnace end to achieve the required burning effect, and the use cost is high.
In addition, there is a structure in which air and gas are mixed by an outer pipe and the mixed gas is introduced into the burner, and when the air-fuel mixed burner adopts an iron plate structure, the upper and lower adjacent mixed gas outlets of the side wall of the combustion chamber are the same as the horizontal distance between the center of the combustion chamber, the temperature of the side wall of the combustion chamber between the upper and lower adjacent mixed gas outlets is easily too high, and when the temperature of the hearth reaches a fire point, the iron plate structure is easily burnt out.
The disc type air-fuel gas mixing burner is unreasonable in air distribution, and the phenomenon of off-burning of too high flame in a combustion chamber is easy to occur, so that the burner is burnt out due to internal combustion caused by long service time or too high temperature during pot-closed combustion.
Disclosure of Invention
The invention aims to provide a premixing furnace end, which can mix fuel gas and air before entering a combustion chamber, so that the mixed gas is combusted more fully in the combustion chamber, the energy conversion rate is higher, and the purposes of energy conservation and noise reduction are achieved.
In order to achieve the aim, the invention provides a premixing furnace end, which comprises a furnace shell, wherein an air inlet is arranged on the furnace shell, an air channel cup which is vertically arranged is arranged on the inner side of the furnace shell, a combustion chamber is arranged on the inner side of the air channel cup, an air bin is formed between the outer side wall of the air channel cup and the inner side wall of the furnace shell at intervals, a guide air channel which extends outwards and is communicated with the air bin and the combustion chamber is arranged on the side wall of the air channel cup, a gas bin which is isolated from the air bin is arranged on one side of the guide air channel, a through hole which is communicated with the gas bin is arranged on the side wall of the guide air channel, an opening is formed at the top of the air channel cup, and a gas pipe which is communicated with the gas bin is arranged on the outer wall of the furnace shell.
As a further improvement of the invention, the number of the guide air channels is multiple and is uniformly distributed around the outer side wall of the air channel cup.
As a further improvement of the invention, the guide air channels are multiple in number and distributed at intervals up and down, and the gas bin is communicated with the inner sides of the guide air channels through the through holes.
As a further improvement of the invention, in the upper and lower adjacent guide air channels, the horizontal distance from the output end of the upper guide air channel to the center of the combustion chamber is 10-15mm longer than the horizontal distance from the output end of the lower guide air channel to the center of the combustion chamber, and the side wall of the air channel cup between the upper and lower adjacent guide air channels is in a conical surface shape.
As a further improvement of the invention, the side wall of the input end of the guide air duct is of a conical structure with the sectional area gradually smaller along the air flow direction.
As a further improvement of the invention, a vertically arranged wind guiding basin is arranged outside the air bin, the wind guiding basin surrounds the outer side of the air duct cup and is arranged at intervals, the lower edge of the wind guiding basin is connected with the lower part of the gas bin, and the upper edge of the wind guiding basin is arranged at intervals with the top of the furnace shell.
As a further improvement of the invention, the air duct cup comprises at least two cylinders which are connected up and down in sequence, the opposite ends of the two adjacent cylinders are respectively provided with a flanging flange, the opposite end surfaces of the two adjacent flanging flanges are respectively provided with a strip-shaped groove with the extending direction parallel to the flanging flanges, and the upper groove and the lower groove are mutually buckled to form the guide air duct.
As a further improvement of the invention, the fire-type stove comprises a fire-type pipe, wherein a fire-type distribution cavity is arranged at the bottom of the air duct cup, the input end of the fire-type pipe is positioned outside the stove outer shell, and the air outlet end of the fire-type pipe is positioned on the side wall of the fire-type distribution cavity.
As a further improvement of the invention, the wind-shielding device comprises a guide cup, wherein the guide cup comprises wind shielding barrels which are vertically arranged and vertically communicated, the wind shielding barrels are arranged on the inner side of the air duct cup and are matched with each other in section size, air outlets which are in one-to-one correspondence with the output ends of the guide air ducts are arranged on the wind shielding barrels, and the sizes of the air outlets are matched with the section sizes of the guide air ducts.
As a further improvement of the invention, the bottom of the air duct cup is provided with an ignition device.
Advantageous effects
Compared with the prior art, the premixed burner has the advantages that:
1. after entering the air bin, air enters the guide air duct and flows towards the combustion chamber, negative pressure is generated in the guide air duct by the moving air at the moment, so that fuel gas in the fuel gas cavity is sucked into the guide air duct from the through hole on the guide air duct, the mixing of the air and the fuel gas is realized, and the mixing time of the air and the fuel gas is increased due to the fact that the guide air duct has a certain length, the mixing is more complete, the combustion of the mixed gas in the combustion chamber is more complete, the energy conversion rate is higher, and the purposes of energy conservation and noise reduction are achieved; because the air and the fuel gas are mixed in the guide air duct and are fully mixed when reaching the combustion chamber basically, the situation that the fully mixed gas starts to burn in the guide air duct due to the overhigh temperature of the air duct cup is avoided, and the service life of the furnace end is prolonged;
2. the horizontal distance from the output end of the upper guide air duct to the center of the combustion chamber is 10-15mm longer than the horizontal distance from the output end of the lower guide air duct to the center of the combustion chamber, so that the fuel gas output from the upper guide air duct and the lower guide air duct can be staggered mutually in the longitudinal direction when in combustion, the side wall of the conical air duct cup between the upper guide air duct and the lower guide air duct can effectively avoid the outer flame with the highest flame temperature, the integral temperature of the air duct cup is reduced, the premature combustion of the mixed gas due to the overhigh temperature of the guide air duct before entering the combustion chamber is avoided, the combustion efficiency is improved, and the service life of the burner is greatly prolonged;
3. the air guiding basin can enable air entering the outside of the air bin to flow upwards to the vicinity of the top of the furnace end, because the top of the furnace end is higher in temperature during working, the air moving to the vicinity of the top of the furnace end can be heated to form hot air, the heated air bypasses the upper edge of the air guiding basin and then moves downwards to enter each guiding air channel, the mixing speed and uniformity of fuel gas and air can be promoted, and the combustion efficiency can be further improved;
4. the guide air pipe is formed by mutually buckling the strip-shaped grooves on the flange of the two cylinder bodies, the formed guide air pipe is long enough to guide the air entering the inner side of the air duct cup, and the air flow in the air duct cup is prevented from being unevenly distributed due to the formation of turbulent flow, so that the structure is simple, the material consumption is small, and the cost is reduced by 30% -40% compared with that of the existing product;
5. because the two adjacent flanging flanges are of a split structure, if the two adjacent flanging flanges cannot be completely sealed and form a gap, part of air can enter the inner side of the air channel cup through the gap, so that turbulent flow is generated in the air channel cup; the cost of completely sealing the gap between the flanging flanges is high; the wind shielding cylinder of the guide cup can shield air leaked from the flanging flanges, so that turbulent flow is avoided, and the cost is low.
The invention will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a premix burner in example 1;
FIG. 2 is a cross-sectional view of the tunnel cup;
FIG. 3 is an enlarged schematic view of a gas cartridge and a guide duct;
FIG. 4 is a schematic view of a guide duct formed by mutually buckling grooves on two adjacent cylinders;
fig. 5 is a schematic view of the structure of the guide cup 3;
fig. 6 is a cross-sectional view of a premix burner using a wind-guiding tub in example 1.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings.
Example 1
The specific embodiment of the invention is shown in fig. 1 to 5, and the premixed burner comprises a burner shell 2, wherein an air inlet 21 is formed in the burner shell 2, an air duct cup 1 which is vertically arranged is arranged on the inner side of the burner shell 2, a combustion chamber is arranged on the inner side of the air duct cup 1, an air bin 9 is formed by being arranged between the outer side wall of the air duct cup and the inner side wall of the burner shell 2 at intervals, a guide air duct 11 which extends outwards and communicates the air bin 9 with the combustion chamber is arranged on the side wall of the air duct cup 1, a gas bin 8 which is isolated from the air bin 9 is arranged on one side of the guide air duct 11, a through hole 18 which is communicated with the gas bin 8 is formed on the side wall of the guide air duct 11, an opening 13 is formed in the top of the air duct cup 1, and a gas pipe 6 which is communicated with the gas bin 8 is formed on the outer wall of the burner shell 2.
In this embodiment, the air inlet 21 is located at the bottom of the furnace shell 2.
The number of the guide air channels 11 is multiple and the guide air channels are uniformly distributed around the outer side wall of the air channel cup 1.
The number of the guide air channels 11 is multiple, the guide air channels are distributed vertically at intervals, and the gas bin 8 is communicated with the inner sides of the guide air channels 11 through the through holes 18.
In this embodiment, in the upper and lower adjacent guide air channels 11, the horizontal distance from the output end of the upper guide air channel 11 to the center of the combustion chamber is 10-15mm longer than the horizontal distance from the output end of the lower guide air channel 11 to the center of the combustion chamber, and the side wall of the air channel cup 1 between the upper and lower adjacent guide air channels 11 is in a conical surface shape. The horizontal distance of 10-15mm can enable the output end of the upper guide air duct 11 and the conical side wall of the air duct cup 1 to avoid the flame outer flame of the output end of the lower guide air duct 11. The lengths of the upper and lower adjacent guide air channels 11 are the same.
The side wall of the input end of the guide air duct 11 is of a conical structure with the sectional area gradually smaller along the air flow direction.
The air duct cup 1 comprises at least two cylinders 14 which are connected up and down in sequence, the opposite ends of the two adjacent cylinders 14 are respectively provided with a flanging flange 15, the opposite end surfaces of the two adjacent flanging flanges 15 are respectively provided with a strip-shaped groove 16 with the extending direction parallel to the extending direction, and the upper groove 16 and the lower groove 16 are mutually buckled to form the guide air duct 11.
In this embodiment, the furnace shell 2 and the cylinder 14 are of metal sheet structures, the metal sheet is made of steel or stainless steel, and adjacent cylinders 14 are welded with each other.
The premixed burner further comprises a fire type pipe 5, a fire type distribution cavity 17 is arranged at the bottom of the air duct cup 1, the input end of the fire type pipe 5 is positioned outside the burner housing 2, and the air outlet end of the fire type pipe is positioned on the side wall of the fire type distribution cavity 17. The fire tube 5 is not provided with a through hole 18, and the fire gas directly enters the fire distribution cavity 17 from the outside of the furnace shell 2.
The fire distribution cavity 17 is also provided with a plurality of air guide pipes 19, the input ends of the air guide pipes 19 are positioned in the air bin 9, and the output ends of the air guide pipes 19 are positioned on the side wall of the fire distribution cavity 17. The air guide pipe 19 is formed by buckling the upper groove 16 and the lower groove 16 with each other. The air in the air bin 9 enters the fire distribution cavity 17 from the air guide pipe 19 to be mixed with fire fuel gas and combusted, and meanwhile, the air cooling function is also achieved.
In this embodiment, the guiding air duct 11 is divided into four layers sequentially arranged from bottom to top, the guiding air duct 11 of the first layer at the bottom is the fire tube 5, and the tube diameter of the fire tube 5 is smaller than the tube diameter of the three-layer guiding air duct 11 above.
Three partition plates 7 are arranged on the outer side of the side wall of the air duct cup 1, the upper edge and the lower edge of each partition plate 7 are respectively welded with the flanging flanges 15 of the upper guide air duct 11 and the lower guide air duct 11 in a sealing manner, a closed space is formed among the side wall of the air duct cup 1, the partition plates 7 and the flanging flanges 15 of the upper guide air duct 11 and the lower guide air duct 11, and all the closed spaces are communicated to form a fuel gas bin 8.
The premixed burner comprises a guide cup 3, the guide cup 3 comprises a wind shielding barrel 31 which is vertically arranged and vertically communicated, the wind shielding barrel 31 is arranged on the inner side of the air duct cup 1 and is matched with the air duct cup in section, an air outlet 32 which corresponds to the output end of the guide air duct 11 one by one is formed in the wind shielding barrel 31, and the size of the air outlet 32 is matched with the section of the guide air duct 11.
The guide cup 3 comprises a mounting flange 33 positioned at the top of the air blocking cylinder 31, the mounting flange 33 is positioned at the outer side of the air channel cup 1, and the outer edge of the mounting flange 33 is connected with the upper edge of the furnace shell 2 through welding. The outer side wall of the wind shielding cylinder 31 of the guide cup 3 is welded with the top edge of the air duct cup 1.
The bottom of the air duct cup 1 is provided with an ignition device 4. The bottom of the air duct cup 1 is provided with a stepped hole 12 for mounting the ignition device 4.
Example 2
As shown in fig. 6, the difference from embodiment 1 is that a vertically arranged wind guiding basin 10 is arranged in the air bin 9, the wind guiding basin 10 surrounds the outside of the air duct cup 1 and is arranged at intervals, the lower edge of the wind guiding basin 10 is connected with the lower part of the gas bin 8, and the upper edge of the wind guiding basin 10 is arranged at intervals with the top of the furnace shell 2.
In the above embodiment, the fire tube 5 may not adopt the structure of the guiding air duct 11, and may adopt an integral metal tube, one end of the fire tube 5 is connected with the gas tube outside the burner, and the other end extends into the fire distribution cavity 17.
The invention has been described in connection with the preferred embodiments, but the invention is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the invention.
Claims (8)
1. The premixed burner comprises a burner shell (2), wherein an air inlet (21) is formed in the burner shell (2), the burner shell is characterized in that an air duct cup (1) which is vertically arranged is arranged on the inner side of the burner shell (2), the inner side of the air duct cup (1) is a combustion chamber, an air bin (9) is formed by being arranged between the outer side wall of the air duct cup and the inner side wall of the burner shell (2) at intervals, a guide air duct (11) which extends outwards and is communicated with the air bin (9) and the combustion chamber is arranged on the side wall of the air duct cup (1), a gas bin (8) which is isolated from the air bin (9) is arranged on one side of the guide air duct (11), a through hole (18) which is communicated with the gas bin (8) is formed in the side wall of the guide air duct (11), an open opening (13) is formed in the top of the air duct cup (1), and a gas pipe (6) which is communicated with the gas bin (8) is arranged on the outer wall of the burner shell (2); the number of the guide air channels (11) is multiple and the guide air channels are uniformly distributed around the outer side wall of the air channel cup (1); the number of the guide air channels (11) is multiple, the guide air channels are distributed at intervals up and down, and the gas bin (8) is communicated with the inner sides of the guide air channels (11) through the through holes (18).
2. The premixing burner according to claim 1, wherein the horizontal distance from the output end of the upper guiding air duct (11) to the center of the combustion chamber is 10-15mm longer than the horizontal distance from the output end of the lower guiding air duct (11) to the center of the combustion chamber in the upper and lower adjacent guiding air ducts (11), and the side wall of the air duct cup (1) between the upper and lower adjacent guiding air ducts (11) is in a conical shape.
3. A premix burner according to claim 1, characterized in that the side wall of the inlet end of the guide duct (11) has a tapered structure with a cross-sectional area gradually decreasing in the air flow direction.
4. A premix burner according to claim 1, characterized in that a vertically arranged air guiding basin (10) is arranged in the air bin (9), the air guiding basin (10) surrounds the outer side of the air duct cup (1) and is arranged at intervals with the air duct cup, the lower edge of the air guiding basin (10) is connected with the lower part of the gas bin (8), and the upper edge of the air guiding basin (10) is arranged at intervals with the top of the furnace shell (2).
5. A premixed burner according to any one of claims 1 to 4, wherein the air duct cup (1) comprises at least two cylinders (14) which are sequentially connected up and down, a flanging flange (15) is arranged at one end of each of the two adjacent cylinders (14), strip-shaped grooves (16) with the extending direction parallel to the flanging flange are arranged on the opposite end faces of the two adjacent flanging flanges (15), and the upper groove (16) and the lower groove (16) are mutually buckled to form the guide air duct (11).
6. The premixed burner of claim 5, comprising a fire tube (5), wherein a fire distribution cavity (17) is provided at the bottom of the air duct cup (1), the input end of the fire tube (5) is located outside the burner housing (2), and the gas outlet end thereof is located on the side wall of the fire distribution cavity (17).
7. The premixed burner according to claim 5, comprising a guiding cup (3), wherein the guiding cup (3) comprises a wind shielding cylinder (31) which is vertically arranged and vertically penetrated, the wind shielding cylinder (31) is arranged at the inner side of the air duct cup (1) and is matched with the air duct cup in terms of the cross section size, the wind shielding cylinder (31) is provided with air outlets (32) which are in one-to-one correspondence with the output ends of the guiding air duct (11), and the size of the air outlets (32) is matched with the cross section size of the guiding air duct (11).
8. A premix burner according to claim 1, characterized in that the bottom of the air duct cup (1) is provided with an ignition device (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810374130.XA CN108426244B (en) | 2018-04-24 | 2018-04-24 | Premixing furnace end |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810374130.XA CN108426244B (en) | 2018-04-24 | 2018-04-24 | Premixing furnace end |
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CN108426244A CN108426244A (en) | 2018-08-21 |
CN108426244B true CN108426244B (en) | 2023-12-26 |
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CN201810374130.XA Active CN108426244B (en) | 2018-04-24 | 2018-04-24 | Premixing furnace end |
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Families Citing this family (1)
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CN112747471A (en) * | 2019-10-31 | 2021-05-04 | 芜湖美的厨卫电器制造有限公司 | Combustion chamber and gas appliance |
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CN101165401A (en) * | 2006-10-18 | 2008-04-23 | 裕富宝厨具设备(深圳)有限公司 | Pre-mixing type combustion apparatus |
CN201412848Y (en) * | 2009-05-20 | 2010-02-24 | 中国科学院金属研究所 | Whirlwind-type gas combustor |
CN101619852A (en) * | 2009-08-12 | 2010-01-06 | 合肥百年五星饮食设备有限责任公司 | Commercial high-efficiency energy-saving gas burner |
EP2505917A1 (en) * | 2011-03-31 | 2012-10-03 | Candy S.p.A. | Gas burner and cooking top |
CN202613441U (en) * | 2011-08-26 | 2012-12-19 | 俞思绮 | Combustion gas furnace head |
CN202598518U (en) * | 2012-03-26 | 2012-12-12 | 东莞市九丰化工有限公司 | Energy-saving furnace core structure |
CN203384978U (en) * | 2013-07-03 | 2014-01-08 | 永康市华港厨具配件有限公司 | Anti-backfire commercial gas stove burner |
CN203718842U (en) * | 2014-01-25 | 2014-07-16 | 黄石云河工贸有限公司 | Frying oven premixed furnace end without stinging eyes |
CN104791794A (en) * | 2015-05-12 | 2015-07-22 | 马景旭 | Stove burner |
CN104930558A (en) * | 2015-07-01 | 2015-09-23 | 黄石云河工贸有限公司 | Suction integrated flame-out protection frying kitchen stove |
CN107869738A (en) * | 2017-12-08 | 2018-04-03 | 广州市东霸节能科技有限公司 | A kind of burner |
CN208108093U (en) * | 2018-04-24 | 2018-11-16 | 广州市东霸节能科技有限公司 | A kind of premixed burner |
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