CN110848686A - Burner for outputting dense and light premixed gas by using small fire hole and conical tubular fire hole - Google Patents
Burner for outputting dense and light premixed gas by using small fire hole and conical tubular fire hole Download PDFInfo
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- CN110848686A CN110848686A CN201911298522.3A CN201911298522A CN110848686A CN 110848686 A CN110848686 A CN 110848686A CN 201911298522 A CN201911298522 A CN 201911298522A CN 110848686 A CN110848686 A CN 110848686A
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000002349 favourable effect Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 239000013589 supplement Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 86
- 238000005457 optimization Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- 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
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- 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
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- 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 relates to the field of commercial kitchen ware, in particular to a burner which utilizes a round fire hole with small aperture and a conical tubular fire hole with large aperture to simultaneously output premixed gas with higher concentration and premixed gas with lower concentration for secondary mixing and combustion, wherein the premixed gas with higher concentration and the premixed gas with lower concentration supplement air and gas which are lacked by the other party mutually in the combustion reaction process. Can provide a rich-lean premixed gas burner which is not easy to temper and does not need secondary air supply in the combustion reaction process.
Description
Technical Field
The invention relates to the field of commercial kitchen ware, in particular to a burner for outputting dense and dilute premixed gas by utilizing small fire holes and conical tubular fire holes.
Background
Scientific experiments prove that: 1, the flow resistance of the premixed gas flowing in the conical pipeline with the contraction angle of 6-8 degrees is small, the kinetic energy loss of the gas is small, the outlet caliber of the conical pipe is larger, the gas flows more smoothly, and the gas flow is easier to increase; 2, the burner sucks air by means of the kinetic energy of the gas to perform premixed combustion, the inner wall of the used ejector is smooth, and the gas circulation resistance and the kinetic energy loss are obviously smaller than those of the ejector with a rough inner wall; 3, the bell mouth of the ejector is not provided with an air door baffle, so that the resistance of the outside air when the outside air is sucked into the ejector by the kinetic energy of the fuel gas can be obviously reduced, and the maximization of the air suction amount is facilitated; the closer the gas-air mixing ratio is to the optimal range of the air quantity required by gas combustion, the faster the combustion reaction speed and the flame propagation speed are, the more easily the combustion flame falls back to the premixed gas chamber through the fire hole for combustion, commonly called as tempering. At present, no products which are all owned in a self-ventilation gas burner and have the characteristics that a fire hole channel adopts a 6-8-degree conical hole air passage, the pipe wall of an ejector is smooth, a horn mouth of a main ejector is not provided with an air door baffle, the burner simultaneously organizes and outputs two kinds of premixed gas with large difference in concentration, the caliber of a fire hole air outlet is large, the situation that flame falls back from the fire hole to a premixed gas chamber is not easy to occur, and the like are seen in the market, so that the burner for outputting the concentrated and diluted premixed gas by using a small fire hole and a conical pipe fire hole is designed.
Disclosure of Invention
The invention relates to the field of commercial kitchen ware, in particular to a burner which utilizes a round fire hole with small aperture and a conical tubular fire hole with large aperture to simultaneously output premixed gas with higher concentration and premixed gas with lower concentration for secondary mixing and combustion, wherein the premixed gas with higher concentration and the premixed gas with lower concentration supplement air and gas which are lacked by the other party mutually in the combustion reaction process.
The invention provides a dense and thin premixed gas burner which utilizes a small fire hole and a conical tubular fire hole to output dense and thin premixed gas, and comprises a fire distributor, a cover cap, an ignition flameout protection needle, a conical tube, an auxiliary fire hole, a main distribution chamber, an auxiliary distribution chamber, a main ejector and an auxiliary ejector, and the dense and thin premixed gas burner is not easy to temper and does not need secondary air supply in the combustion reaction process.
The fire distributor is provided with an inner ring groove and an outer ring groove, the center of the fire distributor is provided with an ignition flameout protection needle, a cap is arranged on the ignition flameout protection needle, an auxiliary fire hole and a main fire hole are arranged in the ring groove, the main fire hole is formed by a plurality of conical tubes with small outlets and large inlets, the conical tubes penetrate through the auxiliary distribution chamber, the upper ends of the conical tubes are connected with the fire distributor, and the lower ends of the conical tubes are connected with a bottom plate of the auxiliary distribution chamber; the auxiliary fire hole is communicated with the auxiliary distribution chamber, the main distribution chamber is arranged below the bottom plate of the auxiliary distribution chamber, an inlet below the conical pipe is communicated with the main distribution chamber, the auxiliary distribution chamber and the main distribution chamber are divided into two cavities which are not communicated with each other by the bottom plate of the auxiliary distribution chamber, the central position of the auxiliary distribution chamber passes through the main distribution chamber through a central gas transmission pipeline and is communicated with an auxiliary transfer chamber below the main distribution chamber, the auxiliary transfer chamber is connected with an auxiliary sleeve, an auxiliary ejector is arranged inside the auxiliary sleeve, the auxiliary ejector is connected with an auxiliary bell mouth, and an auxiliary gas nozzle and an air adjusting baffle are arranged outside the auxiliary bell mouth; the lower end face of the main distribution chamber is provided with a closing-in port, the main transfer chamber below the main distribution chamber is connected with a sub-port through a screw, the main transfer chamber is connected with a main sleeve through a ring channel formed by the inside of the closing-in port of the lower end face of the main distribution chamber and the outside of a central gas transmission pipeline, the main transfer chamber is connected with the main sleeve, a main ejector is arranged inside the main sleeve, the main ejector is connected with a main bell mouth, and a gas nozzle is arranged outside the main bell mouth.
The bottom plate of the auxiliary distribution chamber is composed of an upper layer of metal plate, a lower layer of metal plate and a heat insulation plate clamped between the upper layer of metal plate and the lower layer of metal plate, and heat insulation plates are arranged between the outer walls of the auxiliary distribution chamber and the main distribution chamber and between the outer walls of the combustor and the combustor shell;
as the further optimization of the technical scheme, the taper of the conical tube fire hole of the burner for outputting the dense and light premixed gas by utilizing the small fire hole and the conical tube fire hole is preferably 6-8 degrees, and the diameter of the outlet at the upper end of the fire hole is 5.5-7 millimeters.
As a further optimization of the technical scheme, the burner utilizes the small fire holes and the conical tubular fire holes to output the dense and light premixed gas, two annular grooves are formed in the upper end face of the combustion plate, the conical pipe connected with the combustion plate is arranged in the middle of the annular grooves, and the auxiliary fire holes are located on two sides of the conical pipe and are evenly distributed at the positions close to the vertical walls of the annular grooves.
As the further optimization of the technical scheme, the diameter of the auxiliary fire hole of the burner for outputting the dense and thin premixed gas by utilizing the small fire hole and the conical tubular fire hole is less than 1.8 mm.
As a further optimization of the technical scheme, the main ejector bell mouth of the burner for outputting the dense and thin premixed gas by using the small fire holes and the conical tubular fire holes is not provided with the air door baffle.
As a further optimization of the technical scheme, the throat diameter of the main ejector bell mouth is larger than that of the auxiliary ejector bell mouth by utilizing the small fire holes and the conical tubular fire holes to output the dense and dilute premixed gas burner.
As a further optimization of the technical scheme, the injection pipe of the burner for outputting the dense and light premixed gas by utilizing the small fire holes and the conical tubular fire holes is an independently detachable stainless steel shrinkage pipe, the inner wall of the stainless steel shrinkage pipe is smooth, and oxidation and corrosion are not easy to occur.
The burner for outputting the dense and light premixed gas by utilizing the small fire holes and the conical tubular fire holes has the beneficial effects that:
the invention utilizes the small fire hole and the conical tubular fire hole to output the dense and light premixed gas burner, provides a dense premixed gas burner with a small-aperture fire hole and a light premixed gas burner with a conical tubular large-aperture fire hole, combines the dense and light premixed gas burners, and organizes the output of the dense and light premixed gases together, and supplies the air and the gas which are lacked by the combustion reaction of the other party during the combustion reaction process, so that the secondary air supply is not needed to be introduced from the external environment.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the upper half of a burner for outputting rich premixed gas by using small fire holes and tapered tubular fire holes according to the present invention.
FIG. 3 is a schematic view of the lower half of the burner of the present invention utilizing small flame holes and tapered tubular flame holes to output rich and lean premixed gas.
FIG. 2 is a schematic structural diagram of the burner for outputting rich and lean premixed gas by using small fire holes and tapered tubular fire holes.
In the figure: a fire divider 1; an annular trench 1-1; 1-2 of auxiliary fire holes; a cap 2; an ignition flameout protection needle 3; a tapered tube 4; 4-1 of main fire hole; a secondary distribution chamber 5; a sub-distribution chamber floor 5-1; a sub-distribution chamber side plate 5-2; a secondary distribution chamber premix gas inlet 5-3; 5-4 parts of a gas pipeline; a main distribution chamber 6; closing in 6-1; a main relay chamber 7; an annular throat 7-1; an auxiliary relay chamber 8; a main ejector 9; a sleeve 9-1; a main bell mouth 9-2; 9-3 of a gas nozzle; an auxiliary ejector 10; an auxiliary sleeve 10-1; an auxiliary bell mouth 10-2; an air conditioning baffle 10-3; and a secondary gas nozzle 10-4.
Detailed Description
The present embodiment will be described with reference to fig. 1-3, which utilizes a small burner and a tapered tubular burner to output a rich-lean premixed gas burner, the flame-retardant fire extinguishing device comprises a fire distributor 1, an annular groove 1-1, an auxiliary fire hole 1-2, a cover cap 2, an ignition and flame-out protection needle 3, a conical tube 4, a main fire hole 4-1, an auxiliary distribution chamber 5, an auxiliary distribution chamber bottom plate 5-1, an auxiliary distribution chamber side plate 5-2, an auxiliary distribution chamber premixed gas inlet 5-3, a gas transmission pipeline 5-4, a main distribution chamber 6, a closing opening 6-1, a main transfer chamber 7, an annular throat opening 7-1, an auxiliary transfer chamber 8, a main ejector 9, a sleeve 9-1, a main bell mouth 9-2, a gas nozzle 9-3, an auxiliary ejector 10, an auxiliary sleeve 10-1, an auxiliary bell mouth 10-2, an air adjusting baffle 10-3 and an auxiliary gas nozzle 10-4.
The fire distributor 1 is provided with an inner ring groove 1-1 and an outer ring groove 1-1, the center of the fire distributor 1 is provided with an ignition and flameout protection needle 3, a cap 2 is arranged on the ignition and flameout protection needle 3, an auxiliary fire hole 1-2 and a main fire hole 4-1 are arranged in the ring groove 1-1, the main fire hole 4-1 is formed by a plurality of conical tubes 4 with small outlets and large inlets, the conical tubes 4 penetrate through an auxiliary distribution chamber 5, the upper ends of the conical tubes 4 are connected with the fire distributor 1, and the lower ends of the conical tubes 4 are connected with a bottom plate 5-1 of the auxiliary distribution chamber 5; the auxiliary fire hole 1-2 is communicated with an auxiliary distribution chamber 5, a main distribution chamber 6 is arranged below an auxiliary distribution chamber bottom plate 5-1, an inlet below the conical pipe 4 is communicated with the main distribution chamber 6, the auxiliary distribution chamber bottom plate 5-1 divides the auxiliary distribution chamber 5 and the main distribution chamber 6 into two cavities which are not communicated with each other, the central position of the auxiliary distribution chamber 5 passes through the main distribution chamber 6 through a central gas transmission pipeline 5-4 to be communicated with an auxiliary transfer chamber 8 below the auxiliary distribution chamber 5, the auxiliary transfer chamber 8 is connected with an auxiliary sleeve 10-1, an auxiliary ejector 10 is arranged inside the auxiliary sleeve 10-1, the auxiliary ejector 10 is connected with an auxiliary bell mouth 10-2, and an auxiliary gas nozzle 10-4 and an air adjusting baffle 10-3 are arranged outside the auxiliary bell mouth 10-2; the lower end face of the main distribution chamber 6 is provided with a closed opening 6-1, the lower end face of the main distribution chamber 6 is connected with a main transfer chamber 7 below the main distribution chamber through a sub-opening and is fastened by screws, an annular channel formed by the interior of the closed opening 6-1 of the lower end face of the main distribution chamber 6 and the exterior of the central gas transmission pipeline 5-4 is a pressure balance throat opening, the main transfer chamber 7 is connected with a main sleeve 9-1, a main ejector 9 is arranged inside the main sleeve 9-1, the main ejector 9 is connected with a main bell mouth 9-2, and a gas nozzle 9-3 is arranged outside the main bell mouth 9-2.
The bottom plate of the auxiliary distribution chamber is composed of an upper layer of metal plate, a lower layer of metal plate and a heat insulation plate clamped between the upper layer of metal plate and the lower layer of metal plate, and heat insulation plates are arranged between the outer walls of the auxiliary distribution chamber and the main distribution chamber and between the outer walls of the combustor and the combustor shell; the heat transfer to main distribution chamber can be reduced to the maximize, and then guarantee that main distribution chamber can not increase gaseous circulation resistance because of excessive temperature rise, and then guarantee that the light premixed gas of main burner tissue output is gas and air proportion value stable.
As the technical scheme is further optimized, the taper of the conical tube fire hole of the burner for outputting the dense and light premixed gas by utilizing the small fire hole and the conical tube fire hole is 6-8 degrees, the diameter of the outlet at the upper end of the fire hole is 5.5-7 millimeters, the resistance of the premixed gas flowing from the fire hole can be reduced, the kinetic energy loss of the premixed gas flowing is reduced, and the maximization of the kinetic energy and the maximization of the flow when the premixed gas flows out of the conical tube fire hole can be further ensured.
As a further optimization of the technical scheme, the burner utilizes the small fire holes and the conical tubular fire holes to output the dense-dilute premixed gas, the upper end surface of the combustion plate of the burner is provided with two annular grooves, the conical pipe connected with the combustion plate is arranged in the middle of the annular grooves, the auxiliary fire holes are positioned at two sides of the conical pipe and are uniformly distributed at the positions close to the vertical walls of the annular grooves, the auxiliary fire holes are favorable for surrounding the main fire holes, the dense premixed gas flowing out of the auxiliary fire holes can be enabled to tightly wrap the dilute premixed gas flowing out of the main fire holes together, the combustion heat of the dense premixed gas flowing out of the auxiliary fire holes is favorable for forcibly igniting the dilute premixed gas flowing out of the main fire holes at a short distance, the dense premixed gas and the dilute premixed gas are favorable for fully mixing in the combustion reaction process and supplying the part of gas and air which are lacked by the other side for combustion, and the improvement.
As the technical scheme is further optimized, the diameter of the auxiliary fire hole of the burner for outputting the dense and light premixed gas by utilizing the small fire hole and the conical tubular fire hole is less than 1.8 mm, so that the high-temperature heat of a combustion reaction zone can be effectively prevented from falling back to the auxiliary distribution chamber from the auxiliary fire hole.
As the technical scheme is further optimized, the main ejector bell mouth of the burner for outputting the dense and thin premixed gas by using the small fire holes and the conical tubular fire holes is not provided with the air door baffle, so that the resistance of gas when the gas is sucked into the air is lower.
As a further optimization of the technical scheme, the throat diameter of the main ejector bell mouth is larger than that of the auxiliary ejector bell mouth by utilizing the small fire holes and the conical tubular fire holes to output the dense and dilute premixed gas burner.
As a further optimization of the technical scheme, the injection pipe of the burner for outputting the dense and light premixed gas by utilizing the small fire holes and the conical tubular fire holes is an independently detachable stainless steel shrinkage pipe, the inner wall of the stainless steel shrinkage pipe is smooth, and oxidation and corrosion are not easy to occur.
The burner for outputting the dense and light premixed gas by utilizing the small fire holes and the conical tubular fire holes has the beneficial effects that:
the invention utilizes the dense-dilute premixed gas burner with the small fire hole and the conical tubular fire hole to output the dense-dilute premixed gas burner, provides a dense-premixed gas burner with the small fire hole and a dilute-premixed gas burner with the conical tubular large fire hole, combines the dense-dilute premixed gas burner with the small fire hole and the dilute premixed gas burner with the conical tubular large fire hole together, and organizes the output of the dense-dilute premixed gas and the dilute premixed gas together, and mutually replenishes the air and the fuel gas which are lacked by the combustion reaction of the other party in the combustion reaction process, so that secondary air replenishment is not needed to be introduced from the external environment in the combustion reaction process, the dense-dilute premixed gas burner can be used in a gas cooker with relatively closed combustion environment, the temperature of combustion flame and the heat exchange.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (7)
1. Utilize little fire hole and toper tubulose fire hole to export dense or light premixed gas burner, including distributor, the annular ditch, vice fire hole, the block cap, the flame-out protection needle of ignition, the conical duct, main fire hole, vice distribution chamber bottom plate, vice distribution chamber curb plate, vice distribution chamber mixes gas inlet in advance, gas transmission pipeline, main distribution chamber, close up, main transfer chamber, annular throat, vice transfer chamber, main ejector, the sleeve pipe, main horn mouth, gas nozzle, vice ejector, vice sleeve pipe, vice horn mouth, air regulation baffle and vice gas nozzle, its characterized in that: the fire distributor is provided with an inner ring groove and an outer ring groove, an ignition and flameout protection needle is arranged in the center of the fire distributor, a cap is arranged on the ignition and flameout protection needle, an auxiliary fire hole and a main fire hole are arranged in the ring grooves, the main fire hole is formed by a plurality of conical tubes with small outlets and large inlets, the conical tubes penetrate through the auxiliary distribution chamber, the upper ends of the conical tubes are connected with the fire distributor, and the lower ends of the conical tubes are connected with a bottom plate of the auxiliary distribution chamber; the auxiliary fire hole is communicated with the auxiliary distribution chamber, the main distribution chamber is arranged below the bottom plate of the auxiliary distribution chamber, an inlet below the conical pipe is communicated with the main distribution chamber, the auxiliary distribution chamber and the main distribution chamber are divided into two cavities which are not communicated with each other by the bottom plate of the auxiliary distribution chamber, the central position of the auxiliary distribution chamber passes through the main distribution chamber through a central gas transmission pipeline and is communicated with an auxiliary transfer chamber below the main distribution chamber, the auxiliary transfer chamber is connected with an auxiliary sleeve, an auxiliary ejector is arranged inside the auxiliary sleeve, the auxiliary ejector is connected with an auxiliary bell mouth, and an auxiliary gas nozzle and an air adjusting baffle are arranged outside the auxiliary bell mouth; the lower end face of the main distribution chamber is provided with a closed opening, the closed opening is connected with a main transfer chamber below the main distribution chamber through a sub-opening and is fastened by screws, an annular channel formed between the inside of the closed opening of the lower end face of the main distribution chamber and the outside of a central gas transmission pipeline is a pressure balance throat opening, the main transfer chamber is connected with a main sleeve, a main ejector is arranged inside the main sleeve, the main ejector is connected with a main bell mouth, and a gas nozzle is arranged outside the main bell mouth;
the bottom plate of the auxiliary distribution chamber is composed of an upper layer of metal plate, a lower layer of metal plate and a heat insulation plate clamped between the upper layer of metal plate and the lower layer of metal plate, and heat insulation plates are arranged between the outer walls of the auxiliary distribution chamber and the main distribution chamber and between the outer walls of the combustor and the combustor shell; the heat transfer to main distribution chamber can be reduced to the maximize, and then guarantee that main distribution chamber can not increase gaseous circulation resistance because of excessive temperature rise, and then guarantee that the light premixed gas of main burner tissue output is gas and air proportion value stable.
2. The burner of claim 1, wherein the burner comprises a plurality of small flame holes and a plurality of tapered tubular flame holes for outputting a rich premixed gas, wherein: the preferred tapering of conical tube fire hole be 6-8 degrees, the diameter of fire hole upper end export 5.5-7 millimeters, reducible premixed gas from the resistance that the fire hole flows, reduce the kinetic energy loss that premixed gas circulates, and then kinetic energy maximize and flow maximize when can ensure premixed gas to flow out from conical tube fire hole.
3. The burner of claim 1, wherein the burner comprises a plurality of small flame holes and a plurality of tapered tubular flame holes for outputting a rich premixed gas, wherein: the combustion plate up end be provided with twice annular ditch, the conical duct that is connected with the combustion plate is settled in the annular ditch intermediate position, vice burner port is located the conical duct both sides, be close to annular ditch founds the wall position evenly distributed, be favorable to vice burner port around main burner port, can make the dense premix gas that vice burner port flows closely wrap up together to the light premix gas that main burner port flows, be favorable to the dense premix gas combustion heat that flows from vice burner port closely compels to ignite the light premix gas that flows from main burner port, be favorable to dense premix gas and light premix gas intensive mixing in the combustion reaction process, supply that the other side burns that part gas and air that lacks, be favorable to holistic combustion reaction quality to promote.
4. The burner of claim 1, wherein the burner comprises a plurality of small flame holes and a plurality of tapered tubular flame holes for outputting a rich premixed gas, wherein: the diameter of the auxiliary fire hole is smaller than 1.8 mm, so that high-temperature heat in the combustion reaction zone can be effectively prevented from falling back to the auxiliary distribution chamber from the auxiliary fire hole.
5. The burner of claim 1, wherein the burner comprises a plurality of small flame holes and a plurality of tapered tubular flame holes for outputting a rich premixed gas, wherein: and the bell mouth of the main ejector is not provided with an air door baffle.
6. The burner of claim 1, wherein the burner comprises a plurality of small flame holes and a plurality of tapered tubular flame holes for outputting a rich premixed gas, wherein: the diameter of the throat opening of the horn opening of the main ejector is larger than that of the throat opening of the horn opening of the auxiliary ejector.
7. The burner of claim 1, wherein the burner comprises a plurality of small flame holes and a plurality of tapered tubular flame holes for outputting a rich premixed gas, wherein: the injection pipe is an independent and detachable stainless steel shrinkage pipe, and the inner wall of the injection pipe is smooth and is not easy to oxidize and rust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911298522.3A CN110848686B (en) | 2019-12-17 | 2019-12-17 | Premixed gas burner for outputting thick and thin gas by utilizing small fire holes and conical tubular fire holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911298522.3A CN110848686B (en) | 2019-12-17 | 2019-12-17 | Premixed gas burner for outputting thick and thin gas by utilizing small fire holes and conical tubular fire holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110848686A true CN110848686A (en) | 2020-02-28 |
| CN110848686B CN110848686B (en) | 2024-07-26 |
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| CN201911298522.3A Active CN110848686B (en) | 2019-12-17 | 2019-12-17 | Premixed gas burner for outputting thick and thin gas by utilizing small fire holes and conical tubular fire holes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594835A (en) * | 2020-05-29 | 2020-08-28 | 宁波方太厨具有限公司 | Burner with a burner head |
| CN111853859A (en) * | 2020-07-31 | 2020-10-30 | 广东万和电气有限公司 | Combustor air inlet system for kitchen range |
| CN112503522A (en) * | 2020-12-11 | 2021-03-16 | 深圳市人人节能设备有限公司 | Independent combustion type multi-flame path furnace end |
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| CN102072486A (en) * | 2009-11-19 | 2011-05-25 | 周佳强 | Compound thick and thin combination combustor |
| CN104075327A (en) * | 2014-07-15 | 2014-10-01 | 李芳春 | Variable fire hole formed by butt joint of small-diameter duct and large-diameter duct |
| CN212132424U (en) * | 2019-12-17 | 2020-12-11 | 浙江惠厨节能科技有限公司 | Burner for outputting dense and light premixed gas by using small fire hole and conical tubular fire hole |
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2019
- 2019-12-17 CN CN201911298522.3A patent/CN110848686B/en active Active
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