CN102224378B - Burner - Google Patents
Burner Download PDFInfo
- Publication number
- CN102224378B CN102224378B CN200980146768.7A CN200980146768A CN102224378B CN 102224378 B CN102224378 B CN 102224378B CN 200980146768 A CN200980146768 A CN 200980146768A CN 102224378 B CN102224378 B CN 102224378B
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- CN
- China
- Prior art keywords
- air
- air flow
- fuel
- flow passage
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/008—Flow control devices
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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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-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
- F23D14/24—Non-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
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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
- F23D14/70—Baffles or like flow-disturbing devices
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- 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
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- 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
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/07006—Control of the oxygen supply
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- 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)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A fuel nozzle for use in a burner comprises a main body having an inlet end and an outlet end and defining a longitudinal axis. A fuel passageway has a fuel receiving inlet, and a fuel emitting outlet for delivering fuel to a mixing chamber of the burner. A first air flow channel having an inlet, and an outlet disposed adjacent the fuel emitting outlet for delivering air to the mixing chamber. The portion of the first air flow channel adjacent the outlet is oriented obliquely to the longitudinal axis. A second air flow channel has an in let, and an outlet disposed adjacent the fuel emitting outlet for delivering air to the mixing chamber. The first air flow channel and the second air flow channel generally surround the fuel passageway, and are disposed on the exterior of the main body.
Description
The cross reference of related application
The application advocates the U.S. Provisional Patent Application the 61/099th of filing an application on September 22nd, 2008, the formal application of the priority of No. 200.
Technical field
The present invention relates to burner, and relate more specifically to the burner that air or oxygen is mixed with gaseous state or evaporated fuel.
Background technology
Use the burner of fuel gas or liquid fuel for comprising many application and other application of boiler, tube heater, stove, other gas appliance.Substantially, these burners are incorporated into fuel gas or liquid fuel in air or oxygen stream.If use liquid fuel, must evaporation or this liquid fuel of atomization.First, lighting the fuel of generation and air or oxygen flows and makes this fuel and air or oxygen stream as visible flame or leave the nozzle of burner as very hot admixture of gas stream.
In order to attempt to improve the level of the prior art in the different application of for example boiler, tube heater, stove and other gas appliance, carry out detailed research so that prior art level in each in these above-mentioned fields is qualified and quantize the prior art level.Research shows to each in these fields, particularly to reduce running cost and to reduce or eliminate emission and to improve without any exception.In current world market, running cost and such as the environmental problem that reduces or eliminates emission normally the most remarkable issue in two, or even the most significant issue that faces of most industries.
Notably, it is evident that in the prior art the possible improvement to using burner to carry out with these various types of devices of generation heat finally can not cause improving significantly.It is evident that in the prior art, without any exception, the basic problem in these all kinds devices is that the efficiency of burner is low.The efficiency of the burner of most prior art is only at about 60%-70%.The imperfect combustion of fuel is the intrinsic subject matters of all these devices.In addition this problem that, efficiency of combustion is low is the main cause that causes the above two remarkable cost (, running cost and environmental problem) in industry.
Therefore,, in order fundamentally to improve the device such as boiler, tube heater, stove and other gas appliance, have been found that and must make the design of Burner Technology there is remarkable and basic progress.More specifically, in order to maximize the design of boiler, tube heater, stove and other gas appliance, according to cost, efficiency etc., need to fundamentally redesign the burner that power is provided for described boiler, tube heater, stove and other gas appliance.If the burner for these equipment can prevent poor efficiency, need not improve boiler technology, line heater technology, smelting furnace technology etc.
Be noted that and attempt this improvement of various types of burners to carry out many years in various fields, but not significant achievement.Therefore, conventionally the device of buner system and use burner is carried out to the improvement of other side.
Be used for the most common design improvement of the environmental problem that overcomes emission for making EGR.In a word, have been found that the recirculation of waste gas can be for reducing the whole emission of buner system.But, there is the problem being associated with the recirculation of this waste gas.The most significant problem is that mixture stream that the recirculation of waste gas can increase the waste gas that makes combustion air and interpolation is substantially by the required energy of system.For example,, conventionally from discharging the about 40%-45% of increased power described in the fan that the increase of 10 (10%) the EGR that turns back to burner can cause forcing air to enter buner system conventionally.Apparently, and compare according to efficiency the solution that therefore obtains according to cost, this solution be difficult for received.Considering that most of waste gas Multiple through then out buner systems are that this is especially difficult for being accepted.
Have a kind of use from the energy of high-velocity combustion air-spray the buner system to promote to recycle in buner system.The feasibility of this technology depends on many factors, and if use this technology to be conventionally more difficult to make sizable a part of combustion product to turn back to burner, thereby makes to be difficult in many cases adopt this technology.
Be clear that making EGR is not a kind of feasible program of the design that improves buner system to improve emission.Fuel being burnt as far as possible efficiently at fuel by buner system in the situation that is unique rational solution; But, there is not desirable effective burner.
Only have the basic redesign of burner and Burner Technology to cause producing the active combustion device of low emissions.The basic fundamental of burner does not have marked change decades recently.The research of prior art has disclosed being known as relative efficiency but thering is no two examples of the subsequently described efficient burner of the present invention according to efficiency and emission.
The US Patent No 7,484,956 of authorizing the people such as Kobayashi on February 3rd, 2009 discloses the low NOx combustion that uses the common oxygen producing and nitrogen stream.By HC fuel being supplied to a little in oxygen enrichment atmosphere, and air separation is become to be supplied to respectively oxygen-enriched stream in burner and nitrogen-rich stream and is realized by forming less NOx the burning of described HC fuel.
The US Patent No 7 that on September 30th, 2008 is authorized the people such as Lanary, 429,173 disclose a kind of gas burner using in stove and make the method for the gas combustion in stove, especially but do not disclose uniquely a kind of process stove using in oily cracking process or oil refining process.Gas burner comprises two paths with adjacent outlet.The first path is communicated with fuel under pressure gas source fluid, and has the aperture that EGR gas can enter by it, and alternate path is communicated with air fluid.In operation, fuel gas is injected in the first path, and EGR gas is inhaled in the first path thus, and this is discardedly mixed with fuel gas.Fuel gas is by partial combustion, and partially combusted fuel gas and EGR gas along the first path flow and with contact and burn from the air of alternate path.The level of the use control NOx emission of EGR gas, and because EGR gas is inhaled in the first path by fuel under pressure gas flow, therefore do not need the pumping mechanism that provides complicated.
The US Patent No 7,422,427 of authorizing Lifshits on September 9th, 2008 discloses a kind of method of Energy Efficient low-NOx combustor and this burner of operation.Burner is arranged in the stove with mixing chamber, described mixing chamber is at least limited by stokehold wall, two sidewalls, top wall and base wall and heat-transfer pipe, and heat transfer medium flows is by described heat-transfer pipe and be arranged at least one in described top wall, base wall and sidewall.Burner assembly is installed to stokehold wall, and has the tubular articles with open distal end, and described open distal end is positioned at mixing chamber.The other end of tubular articles is connected to stokehold wall.Multiple combustion air ports extend to tubular articles from another near-end of tubular articles, and are connected to combustion air source.Pluralities of fuel gas discharge nozzle also extends to described tubular articles from the other end of tubular articles, and is connected to fuels sources.Be formed on stove gas openings and far-end in tubular articles spaced apart, around the periphery of tubular articles, and locate with respect to mixing chamber, make stove gas cycle through some heat-transfer pipes before arriving stove gas openings, thereby form the mixture of combustion air, fuel gas and stove gas.The circulator of the far-end of tubular articles produce for the mixture downstream of circulator and tubular articles recirculation zone.
The US Patent No 6,485,289 of authorizing the people such as Kelly on November 26th, 2002 discloses a kind of extra small NOx buner system and method.Low temperature after-flame with in NOx reduction reaction district, make the rich fuel reactor (FMFRR) of fuel enhancement district gas with together with product from poor fuel reactor (FMR) district.The reactor of the fuel-rich material of fuel enhancement makes flameholding by the recirculation that makes hot gas and reactant.The generation of NOx is controlled in nitrogen substance decay reaction in fuel-rich regions.Then under optimum temperature, in burning-out zone, react from the nitrogen substance of fuel-rich regions with from the NOx in poor fuel district, and nitrogen substance mixes in the minimized situation of NOx.Temperature in All Ranges, and particularly the temperature in burning-out zone can carry secretly by furnace gas, the waste gas circulation producing, compulsory waste gas circulation and active cooling control the by heat release and/or convective heat exchange.NOx can be by by ammonia or be similarly incorporated in low temperature burning-out zone containing ammoniacal substance and further reduced.Combustion and emission control reaction by the multiple regions of balance, in good flame holding, fall under stove, heat transfer and noise characteristic to realize low emission.
Summary of the invention
An object of the present invention is to provide a kind of fuel nozzle using in burner, wherein said fuel nozzle makes burner combustion fuel very effectively.
Another object of the present invention is to provide a kind of fuel nozzle using in burner, and wherein said fuel nozzle makes burner produce few noxious emission.
Another object of the present invention is to provide a kind of fuel nozzle using in burner, and wherein said fuel nozzle can use with various types of fuel gas with burner together with liquid fuel.
Another object of the present invention is to provide a kind of fuel nozzle using in burner, and wherein said fuel nozzle and burner have cost efficiency.
According to an aspect of the present invention, a kind of novel fuel nozzle using in burner is disclosed.Fuel nozzle comprises main body, and described main body has arrival end and the port of export, and is limited to the longitudinal axis extending between arrival end and the port of export.Fuel passage has fuel joint income mouth and fuel ejection outlet, and described fuel ejection outlet is used for fuel to be transported to the mixing chamber of burner.The first air flow passage has entrance and is arranged to the outlet adjacent with fuel ejection outlet, and the outlet of described the first air flow passage is used for delivering air to mixing chamber.The part adjacent with outlet of the first air flow passage is with respect to described longitudinal axis inclined orientation.
According to a further aspect in the invention, a kind of novel fuel nozzle using in burner is disclosed.Fuel nozzle comprises main body, and described main body has arrival end and the port of export, and is limited to the longitudinal axis extending between arrival end and the port of export.Fuel passage has fuel joint income mouth and fuel ejection outlet, and described fuel ejection outlet is used for fuel to be transported to the mixing chamber of burner.The first air flow passage is arranged on the outside of elongate body, and has entrance and be arranged to the outlet adjacent with fuel ejection outlet, and the outlet of described the first air flow passage is used for delivering air to mixing chamber.
According to a further aspect of the invention, a kind of novel fuel nozzle using in burner is disclosed.Fuel nozzle comprises main body, and described main body has arrival end and the port of export, and is limited to the longitudinal axis extending between arrival end and the port of export.Fuel passage has fuel joint income mouth and fuel ejection outlet, and described fuel ejection outlet is used for fuel to be transported to the mixing chamber of burner.The first air flow passage has entrance and is arranged to the outlet adjacent with fuel ejection outlet, described the first air flow passage be used for delivering air to mixing chamber with outlet.The second air flow passage has entrance and is arranged to the outlet adjacent with fuel ejection outlet, and the outlet of described the second air flow passage is used for delivering air to mixing chamber.The first air flow passage and the second air flow passage are surrounded fuel passage substantially.
Brief description of the drawings
With reference to describing in detail below accompanying drawing research and when claims, the method for operating of the related elements of other advantage of the present invention, feature and characteristic and structure and effect will become more to be known and present, and below briefly explains described accompanying drawing.
Be considered to as understanding better from the following drawings together with advantage with further object of the present invention according to the novel features of the characteristic of burner of the present invention and structure, tissue use and method of operating, in described accompanying drawing, in the mode of example, currently preferred embodiment of the present invention is described.But what will clearly understand is that described accompanying drawing is only used to carry out diagram and explanation, and is not intended to scope of the present invention to limit.In the accompanying drawings:
Fig. 1 is according to the stereogram of the first preferred embodiment of burner of the present 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 that the hatching 9-9 along Fig. 8 of the first preferred embodiment of the burner of Fig. 1 intercepts;
Figure 10 is the cross section top plan view that the hatching 10-10 along Fig. 8 of the first preferred embodiment of the burner of Fig. 1 intercepts;
Figure 11 is the stereogram for the air-flow-controlling rear housing of a part for the first preferred embodiment of 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 that the hatching 15-15 along Figure 13 of the air-flow-controlling rear housing of Figure 11 intercepts;
Figure 16 is the side cross-sectional view that the hatching 16-16 along Figure 13 of the air-flow-controlling rear housing of Figure 11 intercepts;
Figure 17 is the side cross-sectional view that the air-flow-controlling rear housing of Figure 11 intercepts along the hatching 17-17 of Figure 13;
Figure 18 is the stereogram at the wide rear portion 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 wide rear portion of the shell of Figure 18;
Figure 20 is the front view at the wide rear portion of the shell of Figure 18;
Figure 21 is the rearview at the wide rear portion of the shell of Figure 18;
Figure 22 is the side cross-sectional view that the hatching 22-22 along Figure 20 at the wide rear portion of the shell of Figure 18 intercepts;
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 that the hatching 27-27 along Figure 26 of the fuel nozzle of Figure 23 intercepts;
Figure 28 is the stereogram for the narrow front portion of the shell of a part for the burner of the first preferred embodiment of Fig. 1;
Figure 29 is the exploded perspective view of the narrow front portion of the shell of Figure 28;
Figure 30 is the left side view of the narrow front portion of the shell of Figure 28;
Figure 31 is the right side view of the narrow front portion of the shell of Figure 28;
Figure 32 is the top plan view of the narrow front portion of the shell of Figure 28;
Figure 33 is the bottom plan view of the narrow front portion of the shell of Figure 28;
Figure 34 is the front view of the narrow front portion of the shell of Figure 28;
Figure 35 is the rearview of the narrow front portion of the shell of Figure 28;
Figure 36 is the cross section top plan view that the hatching 36-36 along Figure 34 of the narrow front portion of the shell of Figure 28 intercepts;
Figure 37 is the side cross-sectional view that the hatching 37-37 along Figure 34 of the narrow front portion of the shell of Figure 28 intercepts;
Figure 38 is positioned at appropriate location and the side view in the cross section of the burner of Fig. 1 in use in the situation that in combustion chamber;
Figure 39 is according to the side view of the second preferred embodiment of burner of the present invention;
Figure 40 is the cross section top plan view that the hatching 40-40 along Figure 39 of the second preferred embodiment of the burner of Figure 39 intercepts;
Figure 41 is the side view for the fuel nozzle of a part according to a second, preferred embodiment of the present invention; With
Figure 42 is similar to Figure 41's but at the side view that removes nozzle end from nozzle body.
Detailed description of the invention
With reference to Fig. 1-42 of accompanying drawing, be noted that Fig. 1-38 relate to the first preferred embodiment according to burner of the present invention, and Figure 39-42 relate to the second preferred embodiment according to fuel nozzle of the present invention.
Referring to Fig. 1-38, will describe according to Fig. 1-38 of the first preferred embodiment of burner of the present invention showing, wherein said burner is totally represented by Reference numeral 20.The burner 20 of preferred embodiment comprises the main body 22 with front end 24 and rear end 26.Main body 22 is limited to the longitudinal axis " L " extending between front end 24 and rear end 26.Although it should be understood that the burner for some shapes, after front end, can be arbitrarily a little with determining of rear end, but front end is conventionally restricted to flame and produces, and rear end is restricted to the region that input air and fuel and air start to mix with fuel.
It should be understood that for convenient, term air, for the air that illustrates from air pressurized source or air compressing source receives, still also can use the oxygen from oxygen pressing source or oxygen pressure source.If use air-source, airborne oxygen and the fuel reaction such as propane, natural gas etc.Airborne nitrogen is only in when burning and oxygen separation.Also can design hydrogen can use together with oxygen.
In a preferred embodiment, as shown in the figure, but not necessarily, main body 22 comprises air-flow-controlling rear housing 30 and shell 40.Air-flow-controlling rear housing 30 is fixed to shell 40 by threaded fastener 23 with removable and removable relation.Roughly straight fuel nozzle 50 is positioned at air-flow-controlling rear housing 30 and shell 40.
Shell 40 comprises wide rear portion 42 and narrow by anterior 44.Wide rear portion 42 has inclined outer surface 42 and passage 43, and described passage has inclined inner surface 43a and fixed diameter part 43b.Inclined inner surface 43a limits the outer wall of wide air apotheca 70.Fixed diameter part 43b receives roughly straight fuel nozzle 50 with the relation of close contact therein.
Narrow anterior 44 comprise cylindrical tube 44a, be welded to cylindrical tube 44a rear end rear flange 44b and be welded to the header board 44c of the front end of cylindrical tube 44a.Narrow anterior 44 are fixed to wide rear portion 42 by threaded fastener 41.Header board 44c abuts against on three support lugn 44d that are welded to cylindrical tube 44, and is kept in position by threaded fastener 44i.Header board 44c also has collar flange 44e, and described collar flange abuts against the annular shoulder 44f of the rear end that reduces diameter leading section 44g that is positioned at narrow anterior 44.Further, header board 44c has circular depressions 44h, and described circular depressions is for being received in described circular depressions by the rear end 45b of combustion chamber pipe 45.The rear end 45b of combustion chamber pipe 45 has male screw portion 45c, and described male screw portion is passed through screw-threaded engagement with the negative thread part 44h coordinating on header board 44c.Combustion chamber pipe 45 forms chamber, and the flame being produced by burner 20 of the present invention is closed in described chamber.Can selective combustion chamber length and the internal diameter of pipe 45 undesirably make the projection of flame maximize, and can select described length and internal diameter to produce the specific reason relevant with the output (flame) of burner 20.
Air-flow-controlling rear housing 30 comprises the main body 32 with front end 33 and rear end 34.Longitudinal axis " L " extends between front end 33 and rear end 34.Preferably, main body 32 is made of metal, but can be made up of any other suitable material.
Air-flow-controlling rear housing 30 is also included in the nozzle receiving path 36 in main body 32.Nozzle receiving path 36 is roughly medially arranged in main body 32 and axis'L ' orientation longitudinally.Air-flow-controlling rear housing 30 also comprises the ring-type tapering part 37 extending forward from main body 32.Nozzle receiving path 36 extends through ring-type tapering part 37.
In main body 32, there is at least one air intake, and in a preferred embodiment, as shown in the figure, in main body 32, in back casing 32, there is particularly the first air intake 38 and the second air intake 39.Spaced apart 180 degree (180 °) of the first air intake 38 and the second air intake 39, to effectively maximize the mixing subsequently of air-flow.Each axis'L ' orientation longitudinally roughly of the first air intake 38 and the second air intake 39, as shown in the figure, but the first air intake 38 and the second air intake 39 can be alternatively with another angle orientations.What estimate is in described main body 32, can also have extra air intake to adapt to the needs to additional air input.
Should also be noted that in optional embodiment can have for introducing such as hydrogen and even comprising the auxiliary kind of fuel of non-fire emission and the other entrance of similar fuel from other type of burner.
Air-flow-controlling rear housing 30 is included in the general toroidal air accumulation chamber 29 in main part 32.General toroidal air accumulation chamber 29 is communicated with the first air intake 38 and the second air intake 39 fluids.The shape of general toroidal flow channel is roughly circular.
In main part 32, also there is general toroidal Air Flow mixing chamber 100.The shape of general toroidal Air Flow mixing chamber 100 is roughly circular.
General toroidal wall 110 is separated general toroidal air accumulation chamber 29 and general toroidal Air Flow mixing chamber 100.The shape of general toroidal wall 110 is roughly circular.
General toroidal air accumulation chamber 29 surrounds general toroidal Air Flow mixing chamber 100 substantially.The height of the height of general toroidal air accumulation chamber 29 and general toroidal air accumulation chamber 100 is similar each other.Further, longitudinally axis'L ' is roughly longitudinally aligned with each other for general toroidal air accumulation chamber 29 and general toroidal Air Flow mixing chamber 100.
The first air intake 38 and the second air intake 39 be arranged on general toroidal air accumulation chamber 29 after, to correctly will be directed to before air flow in air accumulation chamber 29.Further, mode according to this, the annex that air pipe line is connected to the first air intake 38 and the second air intake 39 does not have side direction outwards outstanding, and this may be unsafe.
The first air flow openings 101 is extended between general toroidal air accumulation chamber 29 and general toroidal Air Flow mixing chamber 100.The first air flow openings 101 has the first height, and described first is highly a part for the height of general toroidal wall 110.The second air flow openings 102 is extended between general toroidal air accumulation chamber 29 and general toroidal Air Flow mixing chamber 100.The second air flow openings 102 has the second height, and described second is highly a part for the height of general toroidal wall 110.The height of the first air flow openings 101 is greater than the height of the second air flow openings 102.
Burner 20 is also included in the 3rd air flow openings 103 of extending between general toroidal air accumulation chamber 29 and general toroidal Air Flow control room 100.The 3rd air flow openings 103 has third high degree, and described third high degree is a part for the height of general toroidal wall 110.The height of the first air flow openings 101 is greater than the height of the 3rd air flow openings 103, and the height of the second air flow openings 102 is greater than the height of the 3rd air flow openings 103.
Burner 20 is also included in the 4th air flow openings 104 of extending between general toroidal air accumulation chamber 29 and general toroidal Air Flow control room 100.The 4th air flow openings 104 has the 4th height, and the described the 4th is highly a part for the height of general toroidal wall 110.The height of the first air flow openings 101 is greater than the height of the 4th air flow openings 104.The height of the second air flow openings 102 is greater than the height of the 4th air flow openings 104.The height of the 3rd air flow openings 103 is greater than the height of the 4th air flow openings 104.
Have been found that making 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 have different height can make the air that enters general toroidal Air Flow mixing chamber 100 produce effective dynamic flow mixture.
What also estimate is in another embodiment of the present invention, first, second, third and the 4th air flow openings can be with an angle orientation, make the air that flows through described air flow openings enter obliquely general toroidal Air Flow mixing chamber 100, thereby contribute to produce annular eddy flow pattern in general toroidal Air Flow mixing chamber 100.
Roughly straight fuel nozzle 50 comprises the elongate body 55 with arrival end 56 and the port of export 57, and the described roughly cross section of straight fuel nozzle is roughly circle.Main body 55 is limited to the longitudinal axis " L " extending between arrival end 56 and the port of export 57.
Fuel nozzle 50 has the roughly straight fuel passage 58 being medially arranged in elongate body 55.Roughly straight fuel passage 58 has fuel joint income mouthfuls 53 and fuel ejection outlet 54, for being delivered to fuel ejection outlet 54 and fuel being transported to the mixing chamber 80 of burner 20 from the fuel flow of fuel joint income mouthfuls 53 by making.In the first preferred embodiment, as shown in the figure, in fact fuel ejection outlet 54 comprises the first fuel ejection outlet 54a, the second fuel ejection outlet 54b, the 3rd fuel ejection outlet 54c, the 4th fuel ejection outlet 54d, the 5th fuel ejection outlet 54e and the 6th fuel ejection outlet 54f.The first fuel ejection outlet 54a, the second fuel ejection outlet 54b, the 3rd fuel ejection outlet 54c, the 4th fuel ejection outlet 54d, the 5th fuel ejection outlet 54e and the 6th fuel ejection outlet 54f each with respect to longitudinal axis " L " the angle orientations with about ten degree, this has been found can make fuel spread completely for the rapid evaporation of being undertaken by air.Can use alternatively other suitable angle arbitrarily.
Preferably, elongate body 55 comprise have circular cross section narrow rear portion 55a, there is the wide anterior 55b of circular cross section and make narrow rear portion 55a and the interconnective sloping portion 55c of wide anterior 55b.Fuel joint income mouth 53 is arranged on arrival end 56 places, and fuel ejection outlet 54 is arranged on the port of export 57 places.The sloping portion 55c of fuel nozzle 50 engages with the receiving surface coordinating 21 in the mode of sealing contact and the main body of burner 20.Also there is the step shape nozzle mating part 59 in fuel passage 58 at arrival end 56 places of main body 55.
Fuel nozzle 50 also comprises that from the rear end 26 of the main body 22 of burner 20 outstanding outer posterior divides 51 below.Preferably, the outer posterior of fuel nozzle 50 divides 51 to be threaded to divide the nut 52 of engaged fit in this outer posterior, thereby fuel nozzle 50 is remained on to the appropriate location in main body 32.
In order to allow air to flow to the mixing chamber 80 of burner 20 from compressed air source (non-concrete demonstration), be provided with 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.Have been found that the air flow passage preferably with these quantity, in order to make Air Flow and distributed uniform, can there is two or more air flow passage 90.Based on the application-specific of burner 20, the size of burner 20 and fuel nozzle 50 etc., can be used the air flow passage 90 of any right quantity.Various fuel nozzles according to the present invention are tested, comprised the various fuel nozzles from two air flow passage 90.Have been found that the air flow passage of each specific quantity may have the merits and demerits of himself.
Each in 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 has entrance 91 and outlet 92, it is adjacent with fuel ejection outlet 54 that described outlet 92 is configured to, for delivering air to the mixing chamber 80 of burner 20.As shown in figure clearly, each part 93 adjacent with described outlet in 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 is tilted orientation with respect to longitudinal axis " L ".More specifically, whole 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 tilted orientation with respect to longitudinal axis " L " substantially.Even more specifically, the shape twist of each in 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.Each in the air flow passage 90 of multiple spiral in shape is arranged essentially parallel to the air flow passage 90 of adjacent spiral in shape.The air flow passage 90 of spiral in shape preferably arranges on the outside of fuel nozzle 50.
The entrance 91 of the first air flow passage 90a has the cross-sectional area of the cross-sectional area of the outlet 92 that is greater than same the first air flow passage 90a; The entrance 91 of the second air flow passage 90b has the cross-sectional area of the cross-sectional area of the outlet 92 that is greater than same the second air flow passage 90b; The entrance 91 of the 3rd air flow passage 90c has the cross-sectional area of the cross-sectional area of the outlet 92 that is greater than same the 3rd air flow passage 90c; The entrance 91 of the 4th air flow passage 90d has the cross-sectional area of the cross-sectional area of the outlet 92 that is greater than same the 4th air flow passage 90d; The entrance 91 of the 5th air flow passage 90e has the cross-sectional area of the cross-sectional area of the outlet 92 that is greater than same the 5th air flow passage 90e.Preferably, the cross-sectional area of each in entrance 91 is mutually the same, and the cross-sectional area of each in 92 of outlet is mutually the same.
Further, the ratio of the cross-sectional area of the cross-sectional area of the entrance 91 of the first air flow passage 90a and the outlet 92 of same the first air flow passage 90a is approximately 1.6 to 1; The cross-sectional area of the entrance 91 of the second air flow passage 90b is also approximately 1.6 to 1 with the ratio of the cross-sectional area of the outlet 92 of same the second air flow passage 90b; The cross-sectional area of the entrance 91 of the 3rd air flow passage 90c is also approximately 1.6 to 1 with the ratio of the cross-sectional area of the outlet 92 of same the 3rd air flow passage 90c; The cross-sectional area of the entrance 91 of the 4th air flow passage 90d is also approximately 1.6 to 1 with the ratio of the cross-sectional area of the outlet 92 of same the 4th air flow passage 90d; The cross-sectional area of the entrance 91 of the 5th air flow passage 90e is also approximately 1.6 to 1 with the ratio of the cross-sectional area of the outlet 92 of same the 5th air flow passage 90e.
Have been found that about 1.6 to 1 ratio can be represented as golden ratio more exactly, be known as again golden number, wherein golden number is conventionally by Greek alphabet
represent and by mathematic(al) representation
and be approximately equal to 1.618033987.
Further, preferably the cross-sectional area of each in five air flow passage 90 reduces towards outlet 92 from entrance 91.More specifically, further preferably the width of each in five air flow passage 90 reduces towards outlet 92 from entrance 91, to facilitate manufacture, the degree of depth remains unchanged simultaneously.The degree of depth of five air flow passage 90 also can reduce towards outlet 92 from entrance 91, or additionally the width of passage 90 reduces, or instead the width of passage 90 reduces.
As can be in Fig. 1 the most clearly as shown in, the wide anterior 55b of fuel nozzle 50 is with the constant cross-section front portion 24 that is related to catalytic combustion device 20 of sealing.Therefore, air must be by spirality air flow passage 90 to arrive mixing chamber 80.
As shown in FIG., six fuel ejection outlet 54a, 54b, 54c, 54d, 54e and 54f be arranged on a little five air flow passage 90a, 90b, 90c, 90d and 90e outlet before, to allow air to flow from five air flow passage 90a, 90b, 90c, 90d and 90e, thus be fed forward and " pick up " in fact from the fuel of fuel ejection outlet 54a, 54b, 54c, 54d, 54e and the 54f of six fuel nozzles 50 and with this fuel mix.
Burner 20 also has the mixing chamber 80 being communicated with outlet 92 fluids of fuel ejection outlet 54a, 54b, 54c, 54d, 54e and 54f and five air flow passage 90a, 90b, 90c, 90d and 90e.Mixing chamber 80 be arranged on fuel ejection outlet 54a, 54b, 54c, 54d, 54e and 54f and five air flow passage 90a, 90b, 90c, 90d and the 90e of fuel nozzle 50 outlet 92 before, and axis'L ' is aimed at fuel passage 58 along the longitudinal.
Burner 20 also comprises wide air apotheca 70, and described wide air apotheca fluid is communicatively between the first air intake 38 and the second air intake 39 and five spirality air flow passage 90a, 90b, 90c, 90d and 90e.Preferably, wide air apotheca 70 be shaped as annular, and convergent (narrowing) from back to front.Wide air apotheca 70 has narrow air and receives entrance 72, and described narrow air receives entrance and is communicated with the first air intake 38 and the second air intake 39 fluids by air-flow-controlling rear housing 30.Therefore, wide air apotheca 70 receives the air from the first air intake 38 and the second air intake 39.Wide air apotheca 70 also has narrow air outflow port 74.Therefore, lead to five spirality air flow passage 90a, 90b, 90c, 90d and 90e in fuel nozzle 50 from the air of the first air intake 38 and the second air intake 39.
It has been found that wide air apotheca 70 and air receive entrance 72 and contribute to air to move to spirality air flow passage 90 from general toroidal Air Flow mixing chamber 100 together with narrow air outflow port 74.The cross-sectional area of air outflow port 74 is narrower than the cross-sectional area of wide air apotheca 70 when with respect to longitudinal axis " L " cross measure.
In use, with reference to Figure 38, air enters air-flow-controlling rear housing 30 by least one air intake 38 and the second air intake 39, and is first gathered in general toroidal air accumulation chamber 29.Air leads to general toroidal Air Flow mixing chamber 100 from general toroidal air accumulation chamber 29 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, the skew degree of depth of 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 with four differences and independently " level " (with respect to longitudinal axis " L ") make air enter general toroidal Air Flow mixing chamber 100, thereby produce non-laminar flow air.Mode according to this, air is by disturbance as much as possible, to contribute to air downstream and mix completely from the fuel of fuel nozzle end 60.Then air by wide air apotheca 70, leaves by narrow air outflow port 74, and this promotes flowing of air.
Next, the comfort oneself air of air apotheca 70 must enter and pass through 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 before the mixing chamber 80 that is about to be ejected into burner 20.Then Quick air air-flow passes through the roughly port of export 57 of the elongate body 55 of straight fuel nozzle 50 and also passes through fuel nozzle end 60, then with the fuel mix flowing out from fuel nozzle end 60.Due to the minimizing from entrance 91 to outlet 92 of the cross-sectional area of five air flow passage 90a, 90b, 90c, 90d and 90e, air with the speed that enters entrance 91 than this air obviously higher speed leave outlet 92.
Further, because 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, each the air of outlet 92 leaving in these five air flow passage 90 moves towards combustion chamber 82 with quick swirling flow spirality pattern (as shown in by arrow " B ") along mixing chamber 80, then even moves in combustion chamber 82.Compared with the physical length of combustion chamber 82, the swirling flow of the air in combustion chamber 82 provides the mobile route roughly lengthening for the air in combustion chamber 82.Mode according to this, the fuel that air and air " have picked up " has the quite long time of staying.Fuel is extensively distributed in swirling flow air as shown in arrow " A ".Due to the swirling flow of air, can make to burn continues considerable time, therefore produces heat generation, therefore from combustion chamber 82, manages 85 and quite long to the time that the heat of surround is transmitted around by combustion chamber, and wherein heat is transported to required target.In test, have been found that the flame temperature of burner 20 of the present invention can easily exceed 2000 degree, and produce the stack temperature of about 400 degrees Fahrenheits, this temperature is the decline that has made 1600 degrees Fahrenheits of the temperature decline of the object that will heat.Conventionally, in the burner of prior art, the temperature of flame temperature is approximately 1600 degrees Fahrenheits, and flue temperature is approximately 800 degrees Fahrenheits, and described flame temperature and described flue temperature are delivered to only has the 800 degree temperature difference, and this 800 degree temperature difference is for heating object.
Below with reference to Figure 39-42, wherein show the second preferred embodiment according to burner of the present invention, described burner is totally represented by Reference numeral 220.Except shell 240 is according to its heavy wall and much bigger, the second preferred embodiment burner 220 is similar to the first preferred embodiment of burner 20.In addition, the general toroidal wall 210 in back casing 230 is quite thick.Further, fuel nozzle 250 comprises with removable and removable relation and is arranged on the fuel nozzle end 260 in the front end 257 of elongate body 255 of fuel nozzle 250.Preferably, the screw thread rear portion 268 of fuel nozzle end 260 engages the screw thread leading section 259 of the cooperation in fuel passage 258.Fuel nozzle end 260 as described in be mounted with removable and removable relation, to allow to be easy to change this fuel nozzle end in the situation that fuel nozzle end 260 damages, and allow to select suitable fuel nozzle end 260 for end application, for example, be placed in boiler, tube heater or stove.
As from above explanation and understandable from accompanying drawing, the invention provides a kind of fuel nozzle, described fuel nozzle makes burner combustion fuel very effectively, produce minimum unwanted emission, can use together with liquid fuel with all kinds fuel gas, and have economic benefit, all these features are all unknown in the prior art.
Other variation of above principle is apparent to one skilled in the art, and these variation are considered in protection scope of the present invention.Further, can be at Design and manufacture fuel nozzle of the present invention in the situation that not deviating from claims spirit and protection domain time, use other amendment and change.
Claims (10)
1. a burner, comprising:
Main body;
At least one air intake;
Mixing chamber;
Fuel passage, described fuel passage has fuel joint income mouth and fuel ejection outlet, and described fuel ejection outlet is used for fuel to be transported to described mixing chamber;
The first air flow passage, described the first air flow passage has the entrance being communicated with described at least one air intake fluid and is arranged to the outlet adjacent with described fuel ejection outlet, and the outlet of described the first air flow passage is used for delivering air to described mixing chamber;
The general toroidal air accumulation chamber being communicated with described at least one air intake fluid;
General toroidal Air Flow mixing chamber;
Separate the general toroidal wall of described general toroidal air accumulation chamber and described general toroidal Air Flow mixing chamber; With
The first air flow openings, described the first air flow openings is extended and is had the first height for a part for the height of described general toroidal wall between described general toroidal air accumulation chamber and described general toroidal Air Flow mixing chamber.
2. burner according to claim 1, also comprises air apotheca, and described air apotheca fluid is communicatively between described at least one air intake and described the first air flow passage.
3. burner according to claim 2, wherein, described air apotheca has air outflow port, and the cross-sectional area of described air outflow port is narrower than the cross-sectional area of described air apotheca.
4. burner according to claim 1, wherein, described main body has front-end and back-end, and is limited to the longitudinal axis extending between described front end and described rear end, and all described the first air flow passage is with respect to described longitudinal axis inclined orientation.
5. burner according to claim 4, wherein, described the first air flow passage is spiral in shape.
6. burner according to claim 1, wherein, the cross-sectional area of the described entrance of described the first air flow passage is 1.6 to 1 with the ratio of the cross-sectional area of the described outlet of described the first air flow passage.
7. burner according to claim 1, wherein, the cross-sectional area of described the first air flow passage reduces towards described outlet from described entrance.
8. burner according to claim 7, wherein, the width of described the first air flow passage reduces towards described outlet from described entrance.
9. burner according to claim 8, wherein, the degree of depth of described the first air flow passage reduces towards described outlet from described entrance.
10. burner according to claim 1, also comprises the fuel nozzle being arranged in described main body, and described fuel nozzle has described fuel passage, described fuel joint income mouth and described fuel ejection outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410290884.9A CN104197331B (en) | 2008-09-22 | 2009-09-22 | Burner |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9920008P | 2008-09-22 | 2008-09-22 | |
| US61/099,200 | 2008-09-22 | ||
| PCT/CA2009/001308 WO2010031174A2 (en) | 2008-09-22 | 2009-09-22 | Burner |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410290884.9A Division CN104197331B (en) | 2008-09-22 | 2009-09-22 | Burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102224378A CN102224378A (en) | 2011-10-19 |
| CN102224378B true CN102224378B (en) | 2014-07-23 |
Family
ID=42039047
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980146768.7A Expired - Fee Related CN102224378B (en) | 2008-09-22 | 2009-09-22 | Burner |
| CN201410290884.9A Expired - Fee Related CN104197331B (en) | 2008-09-22 | 2009-09-22 | Burner |
| CN200980146792.0A Expired - Fee Related CN102224379B (en) | 2008-09-22 | 2009-09-22 | Air-flow-controlling rear housing member |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410290884.9A Expired - Fee Related CN104197331B (en) | 2008-09-22 | 2009-09-22 | Burner |
| CN200980146792.0A Expired - Fee Related CN102224379B (en) | 2008-09-22 | 2009-09-22 | Air-flow-controlling rear housing member |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US20100154771A1 (en) |
| EP (2) | EP2338000A4 (en) |
| CN (3) | CN102224378B (en) |
| AU (2) | AU2009295221A1 (en) |
| RU (2) | RU2509955C2 (en) |
| WO (3) | WO2010031174A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014085361A1 (en) * | 2012-11-30 | 2014-06-05 | Corning Incorporated | Swirling burner and process for submerged combustion melting |
| MD829Z (en) * | 2014-03-17 | 2015-05-31 | "Goliat-Vita" Ооо | Burner for burning solid fuels |
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- 2009-09-22 WO PCT/CA2009/001308 patent/WO2010031174A2/en active Application Filing
- 2009-09-22 AU AU2009295221A patent/AU2009295221A1/en not_active Abandoned
- 2009-09-22 WO PCT/CA2009/001309 patent/WO2010031175A1/en active Application Filing
- 2009-09-22 RU RU2011115779/06A patent/RU2509955C2/en not_active IP Right Cessation
- 2009-09-22 US US12/564,337 patent/US20100154771A1/en not_active Abandoned
- 2009-09-22 EP EP09813937.1A patent/EP2338000A4/en not_active Withdrawn
- 2009-09-22 US US12/564,369 patent/US20100167222A1/en not_active Abandoned
- 2009-09-22 CN CN201410290884.9A patent/CN104197331B/en not_active Expired - Fee Related
- 2009-09-22 AU AU2009295222A patent/AU2009295222A1/en not_active Abandoned
- 2009-09-22 RU RU2011115778/06A patent/RU2507447C2/en not_active IP Right Cessation
- 2009-09-22 WO PCT/CA2009/001310 patent/WO2010031176A1/en active Application Filing
- 2009-09-22 CN CN200980146792.0A patent/CN102224379B/en not_active Expired - Fee Related
- 2009-09-22 EP EP09813936.3A patent/EP2334985A4/en not_active Withdrawn
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104197331A (en) | 2014-12-10 |
| EP2334985A4 (en) | 2014-08-06 |
| EP2334985A2 (en) | 2011-06-22 |
| EP2338000A4 (en) | 2014-08-06 |
| WO2010031176A1 (en) | 2010-03-25 |
| CN102224379A (en) | 2011-10-19 |
| AU2009295221A1 (en) | 2010-03-25 |
| CN102224378A (en) | 2011-10-19 |
| RU2011115779A (en) | 2012-10-27 |
| RU2011115778A (en) | 2012-10-27 |
| RU2507447C2 (en) | 2014-02-20 |
| WO2010031175A1 (en) | 2010-03-25 |
| US20100154771A1 (en) | 2010-06-24 |
| EP2338000A1 (en) | 2011-06-29 |
| AU2009295222A1 (en) | 2010-03-25 |
| RU2509955C2 (en) | 2014-03-20 |
| CN104197331B (en) | 2017-07-07 |
| US20100167222A1 (en) | 2010-07-01 |
| WO2010031174A2 (en) | 2010-03-25 |
| WO2010031174A3 (en) | 2010-05-14 |
| CN102224379B (en) | 2014-09-24 |
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| JPS60129504A (en) | Burner |
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