CN104197331B - Burner - Google Patents

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Publication number
CN104197331B
CN104197331B CN201410290884.9A CN201410290884A CN104197331B CN 104197331 B CN104197331 B CN 104197331B CN 201410290884 A CN201410290884 A CN 201410290884A CN 104197331 B CN104197331 B CN 104197331B
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CN
China
Prior art keywords
air flow
air
fuel
general toroidal
outlet
Prior art date
Application number
CN201410290884.9A
Other languages
Chinese (zh)
Other versions
CN104197331A (en
Inventor
达塞尔·卡尔灵顿
威廉·凯尔
Original Assignee
达塞尔·卡尔灵顿
威廉·凯尔
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
Priority to US9920008P priority Critical
Priority to US61/099,200 priority
Application filed by 达塞尔·卡尔灵顿, 威廉·凯尔 filed Critical 达塞尔·卡尔灵顿
Priority to CN 200980146768 priority patent/CN102224378B/en
Publication of CN104197331A publication Critical patent/CN104197331A/en
Application granted granted Critical
Publication of CN104197331B publication Critical patent/CN104197331B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00Combustion apparatus characterised by arrangements for air supply
    • F23C7/008Flow control devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/70Baffles or like flow-disturbing devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L1/00Passages or apertures for delivering primary air for combustion 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L2900/00Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07006Control of the oxygen supply
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage
    • Y02E20/34Indirect CO2 mitigation, i.e. by acting on non CO2 directly related matters of the process, e.g. more efficient use of fuels
    • Y02E20/344Oxyfuel combustion

Abstract

A kind of fuel nozzle for using in the burner includes main body, and the main body has arrival end and the port of export, and is limited to the longitudinal axis extended between arrival end and the port of export.There is fuel passage fuel to receive entrance and fuel ejection outlet, and the fuel sprays outlet for delivering fuel into the mixing chamber of burner.First air flow passage has entrance and is arranged to spray the adjacent outlet of outlet with fuel, and the outlet of first air flow passage is used to deliver air to mixing chamber.The part adjacent with outlet of the first air flow passage is relative to longitudinal axis inclined orientation.Second air flow passage has entrance and is arranged to spray the adjacent outlet of outlet with fuel, and the outlet of second air flow passage is used to deliver air to mixing chamber.First air flow passage and the second air flow passage are arranged on the outside of main body substantially surrounded by fuel passage.

Description

Burner

The application is the (invention of Application No. 200980146768.7 submitted to Patent Office of the People's Republic of China for 22nd in September in 2009 Title:Burner) patent application divisional application.

Cross-Reference to Related Applications

The application is advocate the U.S. Provisional Patent Application the 61/099,200th that September in 2008 is filed an application on the 22nd excellent The formal application first weighed.

Technical field

The present invention relates to burner, and relate more specifically to the combustion for making air or oxygen mix with gaseous state or evaporated fuel Burner.

Background technology

It is used to include that boiler, tube heater, stove, other combustion gas are used using the burner of fuel gas or liquid fuel In many applications of tool and other application.Substantially, these burners by fuel gas or liquid fuel be incorporated into air or In oxygen stream.If using liquid fuel, it is necessary to evaporate or be atomized the liquid fuel.First, the fuel and air of generation are lighted Or oxygen stream and the fuel and air or oxygen stream is left burner as visible flame or as very hot admixture of gas stream Nozzle.

It is existing in such as different application of boiler, tube heater, stove and other gas appliances in order to attempt to improve The level of technology, carries out detailed research so that the state of the art in each in these above-mentioned fields is qualified and quantify The prior art level.Research shows particularly reduce running cost to each in these fields without any exception And reduce or eliminate emission and be improved.In current world market, running cost and emission is such as reduced or eliminated Environmental problem be typically in most notable issue two, the most significant arguement that even most industries are faced Point.

It is interesting to note that in the prior art it is evident that to using burner produce heat these are various types of The possible improvement that the device of type is carried out will not finally cause to be significantly improved.In the prior art it is readily apparent that having no Exceptionally, the basic problem in these all kinds devices be burner efficiency it is low.The burner of most prior art Efficiency only in about 60%-70%.The imperfect combustion of fuel is the intrinsic subject matter of all these devices.Additionally, The low this problem of efficiency of combustion is to cause the above two notable costs (that is, running cost and environmental problem) in industry Main cause.

Therefore, in order to fundamentally improve the device of such as boiler, tube heater, stove and other gas appliances, It was found that must make the design of Burner Technology has notable and basic progress.More specifically, adding to maximize boiler, tubular type The design of hot device, stove and other gas appliances, according to cost, efficiency etc., it is necessary to fundamentally be re-designed as the boiler, pipe Formula heater, stove and other gas appliances provide the burner of power.If the burner for these equipment can be prevented Poor efficiency, then without improving boiler technology, line heater technology, melter technology etc..

It should be noted that having been attempt to that this improvement of various types of burners has been carried out in various fields Many years, but do not achieve significantly.Therefore, other side is carried out generally to buner system and using the device of burner Improve.

Design most commonly for overcoming the environmental problem of emission is improved to recycle waste gas.In a word, sent out The recycling of existing waste gas can be used for reducing the whole emission of buner system.However, with the recycling with this waste gas Associated problem.Most significant problem is that the recycling of waste gas can substantially increase the waste gas for making combustion air and adding Mixture stream is by the energy needed for system.For example, generally returning to the 10 (10%) of burner waste gas from discharge The increase of recycling normally results in the power increase about 40%- described in the fan for forcing the air into buner system 45%.It should be evident that compared with the solution simultaneously therefore obtained according to cost according to efficiency, this solution is not It is easily received.Considering that most of waste gas multipass buner systems are that this is especially difficult to be received.

Burning with a kind of energy of use from high-velocity combustion air-spray to promote to be recycled in buner system Device system.The feasibility of this technology depends on many factors, and if is generally more difficult to make quite using this technology Big a part of combustion product returns to burner, so that being difficult in many cases using the technology.

It is clear that it is not a kind of feasible side of the design for improving buner system to recycle waste gas to improve emission Case.It is unique rational solution fuel is burnt as efficiently as possible in the case where fuel passes through buner system; However, in the absence of preferably effective burner.

The basic redesign of only burner and Burner Technology will result in the active combustion device of low emissions.Combustion The basic fundamental of burner does not have significant changes in nearest decades.The research of prior art is had been discovered that according to efficiency and discharge Two examples for being known as relative efficiency but no then described of the invention efficient burner of thing.

The United States Patent (USP) No7,484,956 for authorizing Kobayashi et al. for 2009 for 2 months on the 3rd discloses the common generation of use Oxygen and nitrogen stream low NOx combustion.It is supplied in somewhat oxygen-enriched air by by HC fuel, and is divided air into The oxygen-enriched stream and nitrogen-rich stream being respectively supplied in burner realize the HC fuel by forming less NOx Burning.

The United States Patent (USP) No7,429,173 that September in 2008 authorizes Lanary et al. on the 30th discloses one kind and uses in a furnace Gas burner and make the method that the gas in stove burn, do not disclose especially but uniquely one kind in oily cracking process or The process stove used in oil refining process.Gas burner includes the two paths with adjacent outlets.First path with receive compression ignition Material gas fluid communication, and the aperture that can be entered by it with EGR gas, alternate path are connected with air fluid It is logical.In operation, fuel gas is injected into the first path, and thus EGR gas is inhaled into the first path, So that this is discarded mixing with fuel gas.Fuel gas is burned in part, and partially combusted fuel gas and recycling are useless Gas along the first flow channels and with the air contact from alternate path and burn.Using for EGR gas controls NOx emission The level of thing, and because EGR gas is inhaled into the first path by fuel under pressure gas stream, therefore need not carry For complicated pumping mechanism.

The United States Patent (USP) No7,422,427 that September in 2008 authorizes Lifshits on the 9th discloses a kind of low NOx of Energy Efficient Burner and the method for operating the burner.Burner is arranged in the stove with mixing chamber, and the mixing chamber is at least by stove Antetheca, two side walls, top wall and base walls and heat-transfer pipe are limited, and heat transfer medium flows are by the heat-transfer pipe and are arranged in On at least one of the top wall, base wall and side wall.Burner assembly is installed to stokehold wall, and with opening The tubular articles of distal end, the open distal end is located in mixing chamber.The other end of tubular articles is connected to stokehold wall.Multiple burning Air port extends to tubular articles from another near-end of tubular articles, and is connected to combustion air source.Pluralities of fuel gas Body discharge nozzle is also extended in the tubular articles from the other end of tubular articles, and is connected to fuels sources.It is formed in tubular Stove gas openings in component are spaced apart with distal end, are arranged around the periphery of tubular articles, and relative to mixing chamber positioning, make Obtain stove gas and cycled through some heat-transfer pipes before stove gas openings are reached, so as to form combustion air, fuel gas With the mixture of stove gas.The circulator of the far-end of tubular articles is produced under the mixture for circulator and tubular articles The recirculation zone of trip.

The United States Patent (USP) No6,485,289 that on November 26th, 2002 authorizes Kelly et al. discloses a kind of extra small NOx combustion Device system and method.Make in low temperature after-flame and NOx reduction reactions area fuel enhancement fuel-rich reactor (FMFRR) area's gas with Product from poor fuel reactor (FMR) area is together.The reactor of fuel enhancement fuel-rich is by making hot gas with reactant Recycle and make flameholding.The generation of the nitrogen substance decay reaction controlling NOx in fuel-rich regions.Containing from fuel-rich regions Nitrogen material and the NOx from poor fuel area and then the reaction in burning-out zone under optimum temperature, and situation about being minimized in NOx Lower nitrogen substance mixing.Temperature in all regions, and specifically the temperature in burning-out zone can by furnace gas carry secretly, The waste gas circulation of generation, compulsory waste gas circulation and having source cooling and control by heat release and/or convective heat exchange.NOx can With by by ammonia or similar being incorporated into low temperature burning-out zone containing ammoniacal substance and being further reduced.By balancing multiple regions On burning and emission control reaction, good flame holding, fall stove, heat transfer and noise characteristic under can realize low row Put.

The content of the invention

It is an object of the present invention to provide a kind of fuel nozzle for using in the burner, wherein the fuel nozzle makes Burner effectively burning fuel.

It is a further object to provide a kind of fuel nozzle for using in the burner, wherein the fuel nozzle Burner is set to produce few noxious emission.

A further object of the present invention is to provide a kind of fuel nozzle for using in the burner, wherein the fuel nozzle Can be used together with various types of fuel gas and liquid fuel with burner.

A further object of the present invention is to provide a kind of fuel nozzle for using in the burner, wherein the fuel nozzle There is cost efficiency with burner.

According to an aspect of the present invention, a kind of novel fuel nozzle for using in the burner is disclosed.Fuel nozzle Including main body, the main body has arrival end and the port of export, and is limited to the longitudinal axis extended between arrival end and the port of export Line.There is fuel passage fuel to receive entrance and fuel ejection outlet, and the fuel sprays outlet for delivering fuel into combustion The mixing chamber of burner.First air flow passage has entrance and is arranged to spray the adjacent outlet of outlet with fuel, and described the The outlet of one air flow passage is used to deliver air to mixing chamber.The part adjacent with outlet of the first air flow passage Relative to the longitudinal axis inclined orientation.

According to another aspect of the present invention, a kind of novel fuel nozzle for using in the burner is disclosed.Fuel sprays Mouth includes main body, and the main body has arrival end and the port of export, and is limited to the longitudinal direction extended between arrival end and the port of export Axis.There is fuel passage fuel to receive entrance and fuel ejection outlet, and the fuel sprays outlet for delivering fuel into The mixing chamber of burner.First air flow passage is arranged on the outside of elongate body, and with entrance and be arranged to Fuel sprays the adjacent outlet of outlet, and the outlet of first air flow passage is used to deliver air to mixing chamber.

According to a further aspect of the invention, a kind of novel fuel nozzle for using in the burner is disclosed.Fuel Nozzle includes main body, and the main body has arrival end and a port of export, and is limited to extend between arrival end and the port of export vertical To axis.There is fuel passage fuel to receive entrance and fuel ejection outlet, and the fuel sprays outlet for fuel to be conveyed To the mixing chamber of burner.First air flow passage has entrance and is arranged to spray the adjacent outlet of outlet, institute with fuel State the first air flow passage and export for delivering air to mixing chamber.Second air flow passage has entrance and sets It is set to and sprays the adjacent outlet of outlet with fuel, the outlet of second air flow passage is used to deliver air to mixing Room.First air flow passage and the second air flow passage are substantially surrounded by fuel passage.

Brief description of the drawings

When described further below and appended claims are studied referring to the drawings, further advantage of the invention, feature and spy Property and structure related elements operating method and effect will become clearer present, the accompanying drawing is illustrated briefly below.

It is considered as being to be used and the side of operation according to the novel features and its structure of the characteristic of burner of the invention, tissue Method will more fully understand together with further object of the present invention and advantage from the following drawings, in the drawing, with example Mode illustrates currently preferred embodiment of the invention.However, what is be expressly understood that is that the accompanying drawing is used for the purpose of being illustrated And explanation, and be not intended to be defined the scope of the present invention.In the accompanying drawings:

Fig. 1 is the stereogram of the first preferred embodiment of burner of the invention;

Fig. 2 is the exploded perspective view of the first preferred embodiment of the burner of Fig. 1;

Fig. 3 is the left side elevation view of the first preferred embodiment of the burner of Fig. 1;

Fig. 4 is the right side elevation view of the first preferred embodiment of the burner of Fig. 1;

Fig. 5 is the top plan view of the first preferred embodiment of the burner of Fig. 1;

Fig. 6 is the bottom plan view of the first preferred embodiment of the burner of Fig. 1;

Fig. 7 is the front view of the first preferred embodiment of the burner of Fig. 1;

Fig. 8 is the rearview of the first preferred embodiment of the burner of Fig. 1;

Fig. 9 is the side cross-sectional view intercepted along the hatching 9-9 of Fig. 8 of the first preferred embodiment of the burner of Fig. 1;

Figure 10 is that the section-top intercepted along the hatching 10-10 of Fig. 8 of the first preferred embodiment of the burner of Fig. 1 is put down Face figure;

Figure 11 is the stereogram of the air-flow-controlling rear housing of a part for the first preferred embodiment for Fig. 1;

Figure 12 is the side view of the air-flow-controlling rear housing of Figure 11;

Figure 13 is the front view of the air-flow-controlling rear housing of Figure 11;

Figure 14 is the rearview of the air-flow-controlling rear housing of Figure 11;

Figure 15 is the side cross-sectional view intercepted along the hatching 15-15 of Figure 13 of the air-flow-controlling rear housing of Figure 11;

Figure 16 is the side cross-sectional view intercepted along the hatching 16-16 of Figure 13 of the air-flow-controlling rear housing of Figure 11;

Figure 17 is the side cross-sectional view that is intercepted along the hatching 17-17 of Figure 13 of air-flow-controlling rear housing of Figure 11;

Figure 18 is the stereogram at the rear portion wide of the shell of a part for the burner of the first preferred embodiment of Fig. 1;

Figure 19 is the side view at the rear portion wide of the shell of Figure 18;

Figure 20 is the front view at the rear portion wide of the shell of Figure 18;

Figure 21 is the rearview at the rear portion wide of the shell of Figure 18;

Figure 22 is the side cross-sectional view intercepted along the hatching 22-22 of Figure 20 at the rear portion wide of the shell of Figure 18;

Figure 23 is the stereogram of the fuel nozzle of a part for the first preferred embodiment of Fig. 1;

Figure 24 is the side view of the fuel nozzle of Figure 23;

Figure 25 is the front view of the fuel nozzle of Figure 23;

Figure 26 is the rearview of the fuel nozzle of Figure 23;

Figure 27 is the side cross-sectional view intercepted along the hatching 27-27 of Figure 26 of the fuel nozzle of Figure 23;

Figure 28 is the narrow anterior stereogram of the shell of a part for the burner of the first preferred embodiment for Fig. 1;

Figure 29 is the narrow anterior exploded perspective view of the shell of Figure 28;

Figure 30 is the narrow anterior left side view of the shell of Figure 28;

Figure 31 is the narrow anterior right side view of the shell of Figure 28;

Figure 32 is the narrow anterior top plan view of the shell of Figure 28;

Figure 33 is the narrow anterior bottom plan view of the shell of Figure 28;

Figure 34 is the narrow anterior front view of the shell of Figure 28;

Figure 35 is the narrow anterior rearview of the shell of Figure 28;

Figure 36 is the narrow anterior section-top plan intercepted along the hatching 36-36 of Figure 34 of the shell of Figure 28;

Figure 37 is the narrow anterior side cross-sectional view intercepted along the hatching 37-37 of Figure 34 of the shell of Figure 28;

Figure 38 be combustion chamber be in place and in use in the case of Fig. 1 burner section side-looking Figure;

Figure 39 is the side view of the second preferred embodiment of burner of the invention;

Figure 40 is the section-top intercepted along the hatching 40-40 of Figure 39 of the second preferred embodiment of the burner of Figure 39 Plan;

Figure 41 is the side view of the fuel nozzle of the part for the second preferred embodiment according to the present invention;With

Figure 42 be analogous to Figure 41's but from nozzle body remove nozzle end side view.

Specific embodiment

Fig. 1-42 referring to the drawings, it is noted that Fig. 1-38 is related to the first of burner of the invention to be preferable to carry out Example, and Figure 39-42 is related to the second preferred embodiment of fuel nozzle of the invention.

Referring to Fig. 1-38, Fig. 1-38 of the first preferred embodiment to showing burner of the invention is carried out Illustrate, wherein the burner is totally represented by reference 20.The burner 20 of preferred embodiment includes thering is the He of front end 24 The main body 22 of rear end 26.Main body 22 is limited to the longitudinal axis " L " extended between front end 24 and rear end 26.Though it should be understood that So for the burner of some shapes, behind front end and the determination of rear end can somewhat be arbitrary, but front end is logical Flame generation is often defined as, and rear end is defined as the region that input air and fuel and air and fuel start to mix.

It should be understood that for convenience, term air is used for the sky for illustrating to be received from air pressurized source or air pressure source Gas, but the oxygen from oxygen pressing source or oxygen pressure source can also be used.If using air-source, the oxygen in air The fuel reaction of gas and propane, natural gas etc..Nitrogen in air is only in burning and oxygen separation.Hydrogen can also be designed Gas can be used together with oxygen.

In a preferred embodiment, as illustrated, but be not required, main body 22 include air-flow-controlling rear housing 30 With shell 40.Air-flow-controlling rear housing 30 is fixed to shell can be removed by threaded fastener 23 with replaceable relation 40.Substantially straight fuel nozzle 50 is located in air-flow-controlling rear housing 30 and shell 40.

Shell 40 includes rear portion wide 42 and narrow by anterior 44.Rear portion wide 42 has inclined outer surface 42 and passage 43, described logical Road has inclined inner surface 43a and fixed diameter part 43b.Inclined inner surface 43a limits the outer wall of air storage tank 70 wide.Gu The relation for determining diameter portion 43b wherein to be in close contact receives substantially straight fuel nozzle 50.

Narrow anterior 44 include cylindrical tube 44a, be welded to cylindrical tube 44a rear end rear flange 44b and be welded to circle The foreboard 44c of the front end of cylindrical tube 44a.Narrow anterior 44 are fixed to rear portion wide 42 by threaded fastener 41.Foreboard 44c is abutted against It is welded on three support lugn 44d of cylindrical tube 44, and is kept in position by threaded fastener 44i. Foreboard 44c also has collar flange 44e, and the collar flange abuts against the reduction diameter forward end portion 44g's positioned at narrow anterior 44 The annular shoulder 44f of rear end.Further, foreboard 44c has circular depressions 44h, and the circular depressions are used for will burning The rear end 45b of room pipe 45 is received in the circular depressions.The rear end 45b of combustion chamber pipe 45 has male screw portion 45c, described Male screw portion is engaged with the female portion 44h of the cooperation on foreboard 44c by screw thread.The forming chamber of combustion chamber pipe 45, by this The flame that the burner 20 of invention is produced is closed in the chamber.Can be with the length of selective combustion room pipe 45 and internal diameter as expected Ground maximizes the projection of flame, and is also an option that the length and internal diameter to produce the output (flame) with burner 20 Relevant specific reason.

Air-flow-controlling rear housing 30 includes the main body 32 with front end 33 and rear end 34.Longitudinal axis " L " is in front end Extend between 33 and rear end 34.Preferably, main body 32 is made of metal, but can be to be made up of any other appropriate material.

Air-flow-controlling rear housing 30 is additionally included in the nozzle receiving path 36 in main body 32.Nozzle receiving path 36 is big Cause is centrally arranged in main body 32 and is oriented along longitudinal axis " L ".Air-flow-controlling rear housing 30 is also included from main body 32 The ring-type conical section 37 for extending forward.Nozzle receiving path 36 extends through ring-type conical section 37.

There is at least one air intake in main body 32, and in a preferred embodiment, as illustrated, in main body 32, specifically there is the first air intake 38 and second air intake 39 in back casing 32.First air intake 38 and second Air intake 39 is spaced apart 180 degree (180 °), effectively to maximize the subsequent mixing of air-flow.First air intake 38 and second air intake 39 each generally about the longitudinal axis " L " orientation, as illustrated, the still He of the first air intake 38 Second air intake 39 can be oriented alternatively with another angle.Will be it is anticipated that can also have volume in the main body 32 The need for outer air intake is to adapt to be input into additional air.

It should also be noted that in an alternate embodiment of the invention, can have for introducing such as hydrogen and even including coming From the additional type fuel and the other entrance of similar fuel of the non-burning emission of other type of burner.

Air-flow-controlling rear housing 30 is included in the general toroidal air accumulation room 29 in main part 32.General toroidal Air accumulation room 29 is in fluid communication with the first air intake 38 and second air intake 39.The shape of general toroidal flow channel is big Cause is circular.

Also there is general toroidal air flow mixing chamber 100 in main part 32.General toroidal air flow mixing chamber 100 Shape be of a generally circular or rounded.

General toroidal wall 110 separates general toroidal air accumulation room 29 and general toroidal air flow mixing chamber 100.Substantially What the shape of annular wall 110 was of a generally circular or rounded.

General toroidal air accumulation room 29 is substantially surrounded by general toroidal air flow mixing chamber 100.General toroidal air The height of collection chamber 29 and general toroidal air accumulation room 100 it is highly mutually similar.Further, general toroidal air accumulation Room 29 and general toroidal air flow mixing chamber 100 are approximately longitudinally aligned with each other along longitudinal axis " L ".

First air intake 38 and second air intake 39 are arranged on behind general toroidal air accumulation room 29, so as to just To really be directed to before air flow in air accumulation room 29.Further, in this way, air pipe line is connected to the first sky The annex of gas entrance 38 and second air intake 39 is not projected laterally outward, and this is probably unsafe.

First air flow openings 101 are in general toroidal air accumulation room 29 and general toroidal air flow mixing chamber 100 Between extend.First air flow openings 101 have the first height, and first height is the height of general toroidal wall 110 A part.Second air flow openings 102 general toroidal air accumulation room 29 and general toroidal air flow mixing chamber 100 it Between extend.Second air flow openings 102 have the second height, and second height is the one of the height of general toroidal wall 110 Part.Height of the height of the first air flow openings 101 more than the second air flow openings 102.

Burner 20 is additionally included between general toroidal air accumulation room 29 and general toroidal air flow control room 100 and prolongs The 3rd air flow openings 103 stretched.3rd air flow openings 103 have a third height, and the third height is substantially ring A part for the height of shape wall 110.The height of the first air flow openings 101 is more than the height of the 3rd air flow openings 103, And the height of the second air flow openings 102 is more than the height of the 3rd air flow openings 103.

Burner 20 is additionally included between general toroidal air accumulation room 29 and general toroidal air flow control room 100 and prolongs The 4th air flow openings 104 stretched.4th air flow openings 104 have the 4th height, and the 4th height is substantially ring A part for the height of shape wall 110.Height of the height of the first air flow openings 101 more than the 4th air flow openings 104. Height of the height of the second air flow openings 102 more than the 4th air flow openings 104.3rd air flow openings 103 Highly more than the height of the 4th air flow openings 104.

It has been found that making the first air flow openings 101, the second air flow openings 102, the 3rd air flow openings 103 Can make to enter the air of general toroidal air flow mixing chamber 100 with different height with the 4th air flow openings 104 Produce effective dynamic flowing mixture.

It is also anticipated that be it is of the invention in another embodiment, first, second, third and fourth air flow openings Can be oriented with an angle so that the air for flowing through the air flow openings obliquely enters general toroidal air flow Mixing chamber 100, so as to help that annular rotational flow pattern is produced in general toroidal air flow mixing chamber 100.

Substantially straight fuel nozzle 50 includes the elongate body 55 with arrival end 56 and the port of export 57, and it is described substantially The cross section of straight fuel nozzle is generally circular.Main body 55 is limited to the longitudinal axis extended between arrival end 56 and the port of export 57 Line " L ".

Fuel nozzle 50 has the substantially straight fuel passage 58 being centrally arranged in elongate body 55.Substantially straight combustion Expect that there is path 58 fuel to receive entrance 53 and fuel ejection outlet 54, for by making the fuel from fuel reception entrance 53 Stream is delivered to the mixing chamber 80 that fuel sprays outlet 54 and delivers fuel into burner 20.In the first preferred embodiment, As illustrated, fuel sprays outlet 54 actually includes that the first fuel sprays outlet 54a, the second fuel and sprays outlet 54b, the 3rd Fuel sprays outlet 54c, the 4th fuel ejection outlet 54d, the 5th fuel sprays outlet 54e and the 6th fuel sprays and exports 54f. First fuel sprays outlet 54a, the second fuel ejection outlet 54b, the 3rd fuel ejection outlet 54c, the 4th fuel and sprays and export 54d, the 5th fuel spray outlet 54e and the 6th fuel sprays outlet 54f each relative to longitudinal axis " L " with about ten The angle orientation of degree, this has been found to for the rapid evaporation carried out by air fuel can be made to spread completely.Can To optionally use any other appropriate angle.

Preferably, elongate body 55 includes that the narrow rear portion 55a with circular cross section, the width with circular cross section are anterior 55b and make the sloping portion 55c of narrow rear portion 55a and width front portion 55b interconnection.Fuel receives entrance 53 and is arranged on arrival end 56 Place, and fuel sprays outlet 54 and is arranged at the port of export 57.The sloping portion 55c of fuel nozzle 50 with mode in sealing contact with The receiving surface 21 of the cooperation in the main body of burner 20 is engaged.Also have in fuel passage 58 at the arrival end 56 of main body 55 On step shape nozzle mating part 59.

Fuel nozzle 50 also includes the outer posterior point 51 projected behind from the rear end 26 of the main body 22 of burner 20.It is preferred that Ground, the outer posterior point 51 of fuel nozzle 50 is threaded to engage the nut 52 of cooperation in the outer posterior point, so that will Fuel nozzle 50 is maintained at the appropriate location in main body 32.

In order to allow air that the mixing chamber 80 of burner 20 is flow to from compressed air source (non-specific shows), first is provided with Air flow passage 90a, the second air flow passage 90b, the 3rd air flow passage 90c, the 4th air flow passage 90d and 5th air flow passage 90e.It has been found that preferably there is the air flow passage of these quantity, in order that air flow With it is evenly distributed, can have two or more air flow passages 90.Based on the application-specific of burner 20, burner 20 With the size of fuel nozzle 50 etc., it is possible to use any an appropriate number of air flow passage 90.To of the invention Various fuel nozzles are tested, including from two various fuel nozzles of air flow passage 90.It has been found that each Planting certain amount of air flow passage may have the merits and demerits of its own.

First air flow passage 90a, the second air flow passage 90b, the 3rd air flow passage 90c, the 4th air Each in flow channel 90d and the 5th air flow passage 90e has entrance 91 and outlet 92, and the outlet 92 is set It is set to and sprays 54 adjacent, the mixing chambers 80 for delivering air to burner 20 of outlet with fuel.It is such as best illustrated in figure, First air flow passage 90a, the second air flow passage 90b, the 3rd air flow passage 90c, the 4th air flow passage Each part 93 adjacent with the outlet in 90d and the 5th air flow passage 90e is relative to longitudinal axis " L " quilt Inclined orientation.More specifically, substantially all first air flow passage 90a, the second air flow passage 90b, the 3rd air It is fixed that flow channel 90c, the 4th air flow passage 90d and the 5th air flow passage 90e are inclined by relative to longitudinal axis " L " To.Even more specifically, the first air flow passage 90a, the second air flow passage 90b, the 3rd air flow passage Each twist shape in 90c, the 4th air flow passage 90d and the 5th air flow passage 90e.Multiple spirals Each in the air flow passage 90 of shape shape is arranged essentially parallel to the air flow passage of adjacent spiral in shape 90.The air flow passage 90 of spiral in shape is preferably set up on the outside of fuel nozzle 50.

The entrance 91 of the first air flow passage 90a has the outlet 92 more than same first air flow passage 90a Cross-sectional area cross-sectional area;The entrance 91 of the second air flow passage 90b has more than same second air stream The cross-sectional area of the cross-sectional area of the outlet 92 of dynamic passage 90b;The entrance 91 of the 3rd air flow passage 90c have be more than The cross-sectional area of the cross-sectional area of the outlet 92 of same 3rd air flow passage 90c;4th air flow passage 90d Entrance 91 have more than same 4th air flow passage 90d outlet 92 cross-sectional area cross-sectional area;The The entrance 91 of five air flow passage 90e has the cross section face of the outlet 92 more than same 5th air flow passage 90e Long-pending cross-sectional area.Preferably, the cross-sectional area of each in entrance 91 is mutually the same, and exports each in 92 Cross-sectional area it is mutually the same.

Further, the cross-sectional area of the entrance 91 of the first air flow passage 90a and same first air flow The ratio of the cross-sectional area of the outlet 92 of passage 90a is about 1.6 to 1;The horizontal stroke of the entrance 91 of the second air flow passage 90b Area of section is also about 1.6 to 1 with the ratio of the cross-sectional area of the outlet 92 of same second air flow passage 90b; The cross-sectional area of the entrance 91 of the 3rd air flow passage 90c and the outlet 92 of same 3rd air flow passage 90c The ratio of cross-sectional area is also about 1.6 to 1;The cross-sectional area of the entrance 91 of the 4th air flow passage 90d with it is same The ratio of the cross-sectional area of the outlet 92 of individual 4th air flow passage 90d is also about 1.6 to 1;5th air flow is led to The ratio of the cross-sectional area of the entrance 91 of road 90e and the cross-sectional area of the outlet 92 of same 5th air flow passage 90e Value is also about 1.6 to 1.

It has been found that about 1.6 to 1 ratio can more accurately be represented as golden ratio, gold is known as again Number, wherein golden number are generally by Greek alphabet PHIRepresent and by mathematic(al) representationAnd be approximately equal to 1.618033987。

Further, it is preferred that the cross-sectional area of each in five air flow passages 90 is from the direction of entrance 91 Outlet 92 reduces.More specifically, the width of each in further preferably five air flow passages 90 is from the direction of entrance 91 Outlet 92 reduces, to facilitate manufacture, while depth keeps constant.Five depth of air flow passage 90 can also be from entrance 91 reduce towards outlet 92, or additionally the width of passage 90 reduces, or instead the width of passage 90 is reduced.

Such as can be best illustrated in Fig. 1, the relation catalytic combustion device of the width front portion 55b of fuel nozzle 50 to seal 20 constant cross-section front portion 24.Therefore, air must be by volute type air flow channel 90 reaching mixing chamber 80.

As shown in FIG., six fuel ejection outlets 54a, 54b, 54c, 54d, 54e and 54f are somewhat arranged on five air Before the outlet of flow channel 90a, 90b, 90c, 90d and 90e, with allow air from five air flow passages 90a, 90b, 90c, 90d and 90e flow, and so as to be fed forward and substantially " pick up " and spray outlet from six fuel of fuel nozzle 50 The fuel of 54a, 54b, 54c, 54d, 54e and 54f simultaneously mixes with the fuel.

Burner 20 also has spray outlet 54a, 54b, 54c, 54d, 54e and 54f with fuel and five air flows are led to The mixing chamber 80 that the outlet 92 of road 90a, 90b, 90c, 90d and 90e is in fluid communication.Mixing chamber 80 is arranged on the combustion of fuel nozzle 50 Material sprays outlet 54a, 54b, 54c, 54d, 54e and 54f and five air flow passages 90a, 90b, 90c, 90d and 90e and goes out Before mouth 92, and it is aligned with fuel passage 58 along longitudinal axis " L ".

Burner 20 also includes air storage tank wide 70, and the air storage tank fluid flow communication wide enters between the first air Between mouth 38 and second air intake 39 and five volute type air flow channels 90a, 90b, 90c, 90d and 90e.Preferably, Air storage tank wide 70 is shaped as annular, and tapered (narrowing) from back to front.There is air storage tank wide 70 narrow air to connect Income mouth 72, the narrow air receiver entrance passes through the air intake 38 of air-flow-controlling rear housing 30 and first and the second air Entrance 39 is in fluid communication.Therefore, air storage tank wide 70 receives the sky from the first air intake 38 and second air intake 39 Gas.Air storage tank wide 70 also has narrow air outflow port 74.Therefore, from the first air intake 38 and second air intake 39 Air five volute type air flow channels 90a, 90b, 90c, 90d and 90e leading in fuel nozzle 50.

It has been found that air storage tank wide 70 contributes to together with air receiver entrance 72 and narrow air outflow port 74 Air moves to volute type air flow channel 90 from general toroidal air flow mixing chamber 100.Air outflow port 74 it is transversal Face area is narrower than the cross-sectional area of air storage tank wide 70 when relative to longitudinal axis " L " cross measure.

In use, reference picture 38, air passes through at least one air intake 38 and the air inlet of second air intake 39 Flow-controlling rear housing 30, and be firstly gathered in general toroidal air accumulation room 29.Air is from general toroidal air accumulation Room 29 is via the first air flow openings 101, the second air flow openings 102, the 3rd air flow openings 103 and the 4th air Flow openings 104 lead to general toroidal air flow mixing chamber 100, the first air flow openings 101, the second air flow openings 102nd, the 3rd air flow openings 103 with the excursions depths of the 4th air flow openings 104 with four different and independent " water It is flat " (relative to longitudinal axis " L ") admit air into general toroidal air flow mixing chamber 100, so as to produce non-laminar flow air. In this way, air is disturbed as much as possible, to contribute to air downstream complete with the fuel from fuel nozzle tip 60 Mixing.Then air by air storage tank wide 70, is left by narrow air outflow port 74, and this promotes the flowing of air.

Next, must before it will be ejected into the mixing chamber 80 of burner 20 come the air of air storage tank 70 of comforting oneself The first air flow passage 90a, the second air flow passage 90b, the 3rd air flow passage 90c, the 4th must be entered into and through Air flow passage 90d and the 5th air flow passage 90e.Quick air air-flow is then by the thin of substantially straight fuel nozzle 50 The port of export 57 of main body long 55 simultaneously passes through fuel nozzle tip 60, then mixes with the fuel flowed out from fuel nozzle tip 60. Due to five air flow passages 90a, 90b, 90c, 90d and 90e cross-sectional area from entrance 91 to the reduction of outlet 92, it is empty Gas leaves outlet 92 with than the air into the significantly higher speed of the speed of entrance 91.

Further, due to the first air flow passage 90a, the second air flow passage 90b, the 3rd air flow passage 90c, the 4th air flow passage 90d and the 5th air flow passage 90e are spiral in shape, leave this five air flows The air of the outlet 92 of each in passage 90 is along mixing chamber 80 with quick swirling flow spirality pattern (such as by arrow " B " Suo Shi) Moved towards combustion chamber 82, in then even moving to combustion chamber 82.Compared with the physical length of combustion chamber 82, in combustion chamber 82 The swirling flow of air provide the mobile route for substantially lengthening for the air in combustion chamber 82.In this way, air and air be There is the considerably long residence time through the fuel of " pickup ".Fuel is widely distributed in swirling flow air as indicated by arrow " A ".By In the swirling flow of air, combustion continuation can be made for quite a long time, therefore produce heat generation, therefore from combustion chamber 82, passed through The time of combustion chamber pipe 85 and the heat transfer to surrounding surround is considerably long, and wherein heat is transported to required target.Surveying In examination, it has been found that the flame temperature of burner of the invention 20 easily more than 2000 degree, and can produce about 400 China The stack temperature of family name's degree, the temperature is the decline of 1600 degrees Fahrenheits for having made the temperature drop of the object to be heated.Generally, exist In the burner of prior art, the temperature of flame temperature is about 1600 degrees Fahrenheits, and flue temperature is about 800 degrees Fahrenheits, institute State flame temperature and the flue temperature is delivered to the only 800 degree temperature difference, 800 degree of temperature difference are used to heat object.

Below with reference to Figure 39-42, which show the second preferred embodiment of burner of the invention, the combustion Burner is totally represented by reference 220.In addition to shell 240 is much bigger according to its heavy wall, the combustion of the second preferred embodiment First preferred embodiment of the burner 220 similar to burner 20.Additionally, the general toroidal wall 210 in back casing 230 is relatively thicker. Further, fuel nozzle 250 includes being arranged on replaceable relation can be removed the elongate body 255 of fuel nozzle 250 Front end 257 in fuel nozzle tip 260.Preferably, the engagement of screw thread rear portion 268 fuel passage of fuel nozzle tip 260 The flighting front end portion 259 of the cooperation in 258.Fuel nozzle tip 260 is mounted with removable and replaceable relation as described, To allow to be easily changed the fuel nozzle tip in the case where fuel nozzle tip 260 is damaged, and allow selection appropriate Fuel nozzle tip 260 is used for end application, for example, being placed in boiler, tube heater or stove.

Such as from described above and from accompanying drawing it should be understood that the invention provides a kind of fuel nozzle, the fuel nozzle Make burner effectively burning fuel, produce minimum unwanted emission, can with all kinds fuel gas and Liquid fuel is used together, and with economic benefit, all these features are all in the prior art unknown.

Other variations of principles above are apparent to one skilled in the art, and these variations are recognized For within the scope of the present invention.Further, can in the case of without departing substantially from appended claims spirit and scope To use other modifications and changes when designing and manufacturing fuel nozzle of the invention.

Claims (17)

1. a kind of burner, including:
Main body;
At least one air intake;
Mixing chamber;
There is fuel passage, the fuel passage fuel to receive entrance and fuel ejection outlet, and the fuel sprays outlet to be used for Deliver fuel into the mixing chamber;
First air flow passage, first air flow passage has and at least one air intake fluid communication Entrance and it is configured to spray the adjacent outlet of outlet with the fuel, the outlet of first air flow passage is for by sky Gas is transported to the mixing chamber;With
General toroidal air accumulation room, general toroidal air flow with least one air intake fluid communication mix Room, the general toroidal wall and first for separating the general toroidal air accumulation room and the general toroidal air flow mixing chamber Air flow openings, first air flow openings are in the general toroidal air accumulation room and the general toroidal air stream Extend between dynamic mixing chamber, and first air flow openings have a part for the height for the general toroidal wall First height.
2. the burner according to claim, also including air storage tank, the air storage tank fluid flow communication between Between at least one air intake and first air flow passage.
3. burner according to claim 2, wherein, the air storage tank has air outflow port, the air stream The cross-sectional area of outlet is narrower than the cross-sectional area of the air storage tank.
4. burner according to claim 1, wherein, the main body has a front-end and back-end, and be limited to it is described before The longitudinal axis extended between end and the rear end, whole first air flow passages are inclined relative to the longitudinal axis Orientation.
5. burner according to claim 4, wherein, first air flow passage is spiral in shape.
6. burner according to claim 1, wherein, the cross section face of the entrance of first air flow passage Product is 1.6 to 1 with the ratio of the cross-sectional area of the outlet of first air flow passage.
7. burner according to claim 1, wherein, the cross-sectional area of first air flow passage from it is described enter Mouth reduces towards the outlet.
8. burner according to claim 7, wherein, the width of first air flow passage is from the entrance direction The outlet reduces.
9. burner according to claim 8, wherein, the depth of first air flow passage is from the entrance direction The outlet reduces.
10. burner according to claim 1, also including the fuel nozzle being arranged in the main body, the fuel spray There is mouth the fuel passage, the fuel to receive entrance and fuel ejection outlet.
11. burners according to claim 1, also include:
General toroidal air accumulation room, the general toroidal air accumulation room is located in the main body and empty with described at least one Gas entrance is in fluid communication;
General toroidal air flow mixing chamber, the general toroidal air flow mixing chamber is located in the main body;
General toroidal wall, the general toroidal wall separates the general toroidal air accumulation room and the general toroidal air flow Mixing chamber;
First air flow openings, first air flow openings are in the general toroidal air accumulation room and the substantially ring Between shape air flow mixing chamber extend, and the part with the height for the general toroidal wall first highly;With
Second air flow openings, second air flow openings are in the general toroidal air accumulation room and the substantially ring Between shape air flow mixing chamber extend, and the part with the height for the general toroidal wall second highly,
Height of the height of wherein described first air flow openings more than second air flow openings.
12. burners according to claim 11, also including the 3rd air flow openings, the 3rd air flow openings Between the general toroidal air accumulation room and the general toroidal air flow mixing chamber extend, and with for it is described greatly Cause the third height of a part for the height of annular wall, and wherein described first air flow openings height more than described the The height of three air flow openings, the height of the height more than the 3rd air flow openings of second air flow openings Degree.
13. burners according to claim 12, also including the 4th air flow openings, the 4th air flow openings Between the general toroidal air accumulation room and the general toroidal air flow mixing chamber extend, and with for it is described greatly Cause the 4th height of a part for the height of annular wall, and wherein described first air flow openings height more than described the The height of four air flow openings, the height of the height more than the 4th air flow openings of second air flow openings Degree, the height of the height more than the 4th air flow openings of the 3rd air flow openings.
14. burners according to claim 13, wherein, the shape of the general toroidal wall is substantially circular.
15. burners according to claim 14, wherein, the general toroidal air accumulation room is substantially surrounded by described big Cause annular air flow mixing chamber.
16. burners according to claim 15, wherein, the main body has front-end and back-end, and is limited to described The longitudinal axis extended between front end and the rear end, the general toroidal air accumulation room and the general toroidal air flow Mixing chamber is substantially longitudinally aligned each other along the longitudinal axis.
17. burners according to claim 14, wherein, at least one air intake is arranged on the general toroidal Behind air accumulation room.
CN201410290884.9A 2008-09-22 2009-09-22 Burner CN104197331B (en)

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CN102224378A (en) 2011-10-19
AU2009295221A1 (en) 2010-03-25
AU2009295222A1 (en) 2010-03-25
RU2011115778A (en) 2012-10-27
CN102224378B (en) 2014-07-23
RU2507447C2 (en) 2014-02-20
WO2010031176A1 (en) 2010-03-25
CN102224379A (en) 2011-10-19
US20100167222A1 (en) 2010-07-01
WO2010031175A1 (en) 2010-03-25
EP2334985A4 (en) 2014-08-06
RU2011115779A (en) 2012-10-27
RU2509955C2 (en) 2014-03-20
CN104197331A (en) 2014-12-10
US20100154771A1 (en) 2010-06-24
EP2338000A4 (en) 2014-08-06
EP2338000A1 (en) 2011-06-29
WO2010031174A2 (en) 2010-03-25
CN102224379B (en) 2014-09-24
WO2010031174A3 (en) 2010-05-14
EP2334985A2 (en) 2011-06-22

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