WO2007028711A1 - Ensemble de bruleurs pour une chambre de combustion, chambre de combustion correspondante et procede pour bruler un combustible - Google Patents
Ensemble de bruleurs pour une chambre de combustion, chambre de combustion correspondante et procede pour bruler un combustible Download PDFInfo
- Publication number
- WO2007028711A1 WO2007028711A1 PCT/EP2006/065574 EP2006065574W WO2007028711A1 WO 2007028711 A1 WO2007028711 A1 WO 2007028711A1 EP 2006065574 W EP2006065574 W EP 2006065574W WO 2007028711 A1 WO2007028711 A1 WO 2007028711A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- burner
- combustion chamber
- oxygen
- flue gas
- burners
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 121
- 239000000446 fuel Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 67
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000003546 flue gas Substances 0.000 claims abstract description 53
- 239000001301 oxygen Substances 0.000 claims abstract description 53
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 53
- 239000007789 gas Substances 0.000 claims abstract description 17
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 8
- 206010021143 Hypoxia Diseases 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 13
- 238000010304 firing Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 239000003570 air Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241001156002 Anthonomus pomorum Species 0.000 description 1
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012223 aqueous fraction Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/002—Supplying water
-
- 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
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
- F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
- F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
-
- 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
-
- 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
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/06—Baffles or deflectors for air or combustion products; Flame shields in fire-boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/34—Feeding into different combustion zones
- F23R3/346—Feeding into different combustion zones for staged combustion
-
- 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
- F23C2201/00—Staged combustion
- F23C2201/10—Furnace staging
-
- 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
- F23C2201/00—Staged combustion
- F23C2201/40—Intermediate treatments between stages
-
- 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
- F23L2900/07008—Injection of water into the combustion chamber
-
- 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
- F23L2900/07009—Injection of steam into the combustion chamber
-
- 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
Definitions
- the invention relates to a burner arrangement for a combustion chamber, in particular for a gas turbine combustor o- for a steam generator combustion chamber, with a plurality of burners, which are each designed for the combustion of a carbonaceous fuel under supply of effective as oxidant pure oxygen.
- the invention is further directed to be ⁇ draws a combustion chamber and a steam generator having a combustion chamber and to a gas turbine with a combustion chamber.
- the invention relates to a method for burning a carbonaceous fuel with supply of pure oxygen in such a combustion chamber.
- an oxygen stream of high purity (up to 99, 9%) is introduced as an oxidant in the combustion chamber of a steam generator or a gas turbine instead of a nitrogen-containing combustion air, which is sucked to ⁇ before with removal of the nitrogen content in a zugeord ⁇ Neten air separation plant from Ambient air was extracted.
- CO 2 carbon dioxide
- H 2 O water vapor
- Nitrogen oxides (NO x ) and other pollutants are only produced in tively small amounts due by the fuel ent ⁇ held units or impurities.
- the effluent from the combustion exhaust stream after condensation of water vapor content contains virtually only carbon dioxide (CO 2 ), which can be used commercially as a displacement medium for För ⁇ dermengenerhöhung in almost exhausted oil and natural gas deposits or deposited in saline aquifers underground and thus skyun until ,
- a stoichiometric combustion can be set at the fuel ⁇ mass flow and the oxygen mass flow in relation with respect to each other in such a way as is required for the complete combustion of the fuel to carbon dioxide and water vapor through the associated chemical reaction equation. This could be minimized in addition to the exhaust gas losses and the intrinsic demand for fresh air, suction etc., or the intake losses occurring there.
- a disadvantage of this concept is that the combustion chamber and the exhaust-gas-carrying components connected downstream thereof must be designed for comparatively high volume or mass flows, which results in a correspondingly high volume or mass flow. luminous construction with large flow cross-sections conditioned. This results in relatively high completion costs for such a power plant.
- flame cooling by injecting water or steam or by the use of moist fuels can also be provided according to a second combustion concept.
- the reduction of the firing temperature with increased exhaust gas losses is also bought here, since increasing the flue gas mass flow principally reduces the energy conversion efficiency.
- the present invention therefore has for its object to provide a burner assembly of the type mentioned and an associated combustion chamber, which in simple and cost-held construction and operation with recourse to suitable combustion concepts combustion of a coal ⁇ containing fuel using the oxyfuel process with egg - enable a particularly high energy efficiency and with particularly ⁇ low residual emissions. Furthermore, to be specified for a system based on gene derarti principles ⁇ a particularly suitable method of operation.
- the object is solved according to the invention by a first burner is so laid out ⁇ that the ratio of it in normal operation supplied per unit time to the amount of oxygen stoichiometrically necessary amount of oxygen is greater than for a second, seen in the direction of the flue gas flow further downstream burner.
- At least one burner designed for normal operation with an excess of oxygen is arranged in front of a burner which is designed for normal operation with oxygen deficiency.
- the furnace should be gers configured in a working according to the oxyfuel combustion chamber of a gas turbine or a steam generator such that the combustion ⁇ enthalpy of the carbonaceous fuel only Stepwise ⁇ se is released in stages and so by the spatial distribution ⁇ distribution of heat release sufficient cooling of the firing range limiting combustion chamber walls - in a steam generator through the flow medium to be vaporized and in a gas turbine combustor z. B. by an external cooling medium - is possible.
- this principle of staged combustion is initially a burner assembly with staggered arranged in several burner levels burners into consideration, in which seen in the flow ⁇ direction of the flue gas first arranged burner for operation with lack of oxygen, further downstream burner are designed with excess oxygen.
- Such an arrangement in which therefore the ratio ⁇ of a burner in normal operation per unit time supplied oxygen to - based on the fuel mass flow - stoichiometrically necessary amount of oxygen for the flue gas side first burner levels is smaller than for the last, has, for example, in conventional Verbrennungsprozes ⁇ proven proven in which nitrogen-containing combustion air is introduced into the combustion chamber.
- an "inversely stepped firing” or an “inversely stepped oxygen supply” is provided, in which at least a part of the for a superstoichiometric operation (ie with excess oxygen) designed burner with respect to the flue gas flow direction before a number of designed for substoichiometric operation (ie, with oxygen deficiency) designed burners.
- a plurality of arranged in the flow direction of the flue gas spaced each having a number of burners burner layers provided, wherein the ratio ⁇ of the normal amount per unit time supplied oxygen amount to stoichiometrically necessary amount of oxygen, hereinafter referred to as "air ratio "for a burner, the smaller the further it is in flow Direction of the flue gas is arranged downstream.
- air ratio the ratio of the normal amount per unit time supplied oxygen amount to stoichiometrically necessary amount of oxygen
- Particularly favorable conditions are, for example, for a large class of relevant burner configurations when the air ratio for the burner (s) of the first burner level seen in the flow direction of the heating gas is greater than 3 and preferably about 5, for the burner (s) of FIG Flow direction of the fuel gas seen last burner level, however, is less than 0.5 and preferably about 0.3.
- gebil ⁇ Deten main group or a major portion of burners nachzuordnen a number of additional burners in the direction of flue gas flow, which are each designed for a normal operation of excess oxygen. That is, it is then, for example, a cascade of burners with ⁇ 5;
- the rear burner seen in the flow direction of the flue gas for. B. the last or the last two burner levels, be designed as a diffusion burner, in which the oxygen and the fuel without premixing in the combustion region of the
- an injection of water / water vapor can also be provided, in which case the water injected into the combustion chamber, together with the water vapor resulting from the combustion processes, is subsequently condensed out in a flue gas condensation plant and which is in the United ⁇ evaporation heat absorbed again as useful heat back won th ⁇ nen.
- the concept described here can be applied to steam generators of very different types and is not limited to standing steam boilers.
- the combustion chamber or the combustion chamber can also be arranged horizontally, whereby a substantially horizontal flow direction is predetermined for the flue gas.
- the firebox can also be folded.
- the concept is the
- the aforementioned object is solved by each of a first burner and a second, seen in the direction of the flue gas flow further downstream burner lying per unit time supplied Sauer ⁇ fuel quantity and the respective amount of fuel to be adjusted in relation to ⁇ each other such that the ratio ⁇ of the amount of oxygen supplied to stoichiometrically necessary
- Oxygen quantity for the first burner is greater than for the second.
- the burners of the front burner walls seen in the flow direction of the flue gas are operated with oxygen excess ( ⁇ > 1) and the rear, boiler outlet side arranged burner levels with oxygen deficiency ( ⁇ ⁇ 1).
- the fuel mass flow rate for all burners can, for example, in a first extreme case, be selected at the same size, wherein the oxygen mass flow is respectively set according to the locally desired ⁇ value (gestuf ⁇ te oxygen supply).
- firing with Coal dust for example, is advantageous in terms of its tendency to have a graded supply of oxygen.
- FIG. 1 to 3 show a first to third variant of a fos ⁇ sil heated steam generator in the longitudinal ⁇ cut, the burner arrangement is set out ⁇ each for an "inverse stepped firing" on the basis of the oxyfuel principle ⁇ .
- the steam generator 2 shown in FIG. 1 has an upright steam boiler 4, the surrounding walls 6 of which are welded together in a gas-tight manner, in each case forming steam generator tubes combined into evaporator, superheater or economizer heating surfaces, in which steaming flow medium, eg. As water or a water / steam mixture flows.
- a plurality of burners 8 are provided which are arranged in a combustion chamber 12 located above a funnel-shaped bottom area 10.
- the burners 10 are used to burn a carbonaceous fossil fuel, eg. As coal, petroleum or natural gas, according to the so-called oxy-fuel process in which instead of nitrogen-containing ambient air pure oxygen is introduced as an oxidant in the combustion zone of the combustion chamber 12.
- the flue gas R produced during the combustion consisting essentially of carbon dioxide (CO 2 ) and water vapor (H 2 O), leaves the combustion chamber 12 in the vertical flow direction 14 and then flows upward through the combustion chamber 14
- Combustion chamber 12 subsequent portion of the vertical gas train 16 to deliver a majority of the amount of heat contained in it by convective heat exchange via the hinged in the throttle cable 16 Konvezzysterrorismflachen 18 to the flow medium guided therein, for. B. for overheating of the steam generated in the evaporator tubes of the surrounding walls 6.
- the water fraction contained in the flue gas R is separated off in a condenser (not shown) connected downstream of the steam generator on the flue gas side, so that only pure carbon dioxide can be disposed of as an environmentally harmful combustion product or supplied to another utilization.
- a stepped burner arrangement is provided to reduce the incipient combustion temperatures.
- the burners 8 are arranged in ten arranged burner levels, wherein the burner 8 directly successive stages or planes are each spatially offset from each other.
- a be for burner operation ⁇ Sonders specific ratio is the ratio ⁇ of the egg nem burner 8 per unit time amount of oxygen supplied to - based on the respective fuel mass flow - stoichiometrically necessary amount of oxygen according to the chemical reaction balance.
- the burner of the steam generator 2 is in operation in the exemplary embodiment an otherwise übli ⁇ che, normally strictly necessary for oxyfuel processes on the control of combustion temperatures Rauchgasrezir- kulation not required.
- a firing heat capacity of 1000 MW steam generator of the boiler or the accelerator cable passing through the flue gas mass flow rate is in accordance with model calculations only about 180 kg / s, which is much smaller than that of Dampferzeu ⁇ like with conventional design of the firing and flue gas recirculation are typically expected value of about 480 kg / s. Accordingly, the steam generator 2 in
- Embodiment much narrower ge from the cross-sectional forth ⁇ be builds than similar steam generator konvent ionel ⁇ ler firing; sufficient is a cross-sectional area of For example, 8 mx 8 m (compared to the otherwise required 13 mx 13 m). This ensures a good cross-mixing of the combustion atmosphere in the combustion chamber interior.
- the concept of "inverse stepped firing" has also the advantageous characteristic that is up to 70% of the ge ⁇ entire firing heat capacity of the steam generator 2 in the form of radiant heat emitted which ciency relatively high We ⁇ over the led in the evaporator tubes of the surrounding wall 6 can be removed flow medium. the remaining portion, about 30%, is gene on the flue gas R übertra ⁇ , but can be 18 also reclaimed in part with the aid of Konvetechnischsweflachen.
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Abstract
La présente invention concerne un ensemble de brûleurs pour une chambre de combustion (12) et une chambre de combustion correspondante (12), en particulier une chambre de combustion de turbine à gaz ou une chambre de combustion de générateur de vapeur, comprenant une pluralité de brûleurs (8) qui sont respectivement conçus pour la combustion d'un combustible carboné conjointement à un apport d'oxygène pur servant d'agent d'oxydation. L'objectif de la présente invention est d'obtenir une combustion du combustible avec un rendement énergétique particulièrement élevé et de parvenir à des niveaux d'émissions résiduelles particulièrement faibles, tout en conservant une construction et un fonctionnement simples et économiques et en revenant à des concepts de chauffage adaptés. Les températures de matière admissibles des parois de pourtour (6) entourant la chambre de combustion (12) ne doivent alors pas être dépassées. Selon cette invention, un premier brûleur (8) est conçu de telle manière que le rapport (?) de la quantité d'oxygène qui lui est fournie par unité de temps en fonctionnement normal sur la quantité d'oxygène nécessaire d'un point de vue stoechiométrique est supérieur à celui pour un second brûleur (8) situé plus loin en aval lorsqu'il est observé dans le sens de l'écoulement du gaz de combustion (14).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06792956A EP1926936A1 (fr) | 2005-09-05 | 2006-08-23 | Ensemble de bruleurs pour une chambre de combustion, chambre de combustion correspondante et procede pour bruler un combustible |
CN2006800396110A CN101297156B (zh) | 2005-09-05 | 2006-08-23 | 燃烧室的烧嘴装置,相关的燃烧室及燃料的燃烧方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005042231 | 2005-09-05 | ||
DE102005042231.4 | 2005-09-05 |
Publications (1)
Publication Number | Publication Date |
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WO2007028711A1 true WO2007028711A1 (fr) | 2007-03-15 |
Family
ID=37517072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/065574 WO2007028711A1 (fr) | 2005-09-05 | 2006-08-23 | Ensemble de bruleurs pour une chambre de combustion, chambre de combustion correspondante et procede pour bruler un combustible |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1926936A1 (fr) |
CN (1) | CN101297156B (fr) |
WO (1) | WO2007028711A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009014223A1 (de) * | 2009-03-25 | 2010-09-30 | Hitachi Power Europe Gmbh | Feuerungssystem eines für den Oxyfuel-Betrieb ausgelegten Dampferzeugers |
WO2010036842A3 (fr) * | 2008-09-26 | 2012-06-14 | Air Products And Chemicals, Inc. | Système de combustion comprenant une injection de vapeur ou d'eau |
US11156164B2 (en) | 2019-05-21 | 2021-10-26 | General Electric Company | System and method for high frequency accoustic dampers with caps |
US11174792B2 (en) | 2019-05-21 | 2021-11-16 | General Electric Company | System and method for high frequency acoustic dampers with baffles |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0668470A2 (fr) * | 1994-02-18 | 1995-08-23 | THE BABCOCK & WILCOX COMPANY | Procédés pour la réduction des NOx résultant de la combustion d'un combustible |
WO1999008045A1 (fr) * | 1997-08-08 | 1999-02-18 | Gas Research Institute | Reduction de l'oxyde d'azote au moyen de l'injection de combustible gazeux dans un gaz de combustion a basse temperature pauvre en combustible |
US20020197574A1 (en) * | 2001-06-25 | 2002-12-26 | Jones Andrew P. | Methods and apparatus for burning fuel with low NOx formation |
EP1508741A2 (fr) * | 2003-08-21 | 2005-02-23 | Air Products And Chemicals, Inc. | Combustion de combustibles secondaires enrichie en oxygène pour fours cycloniques de scorification |
WO2005118113A1 (fr) * | 2004-06-03 | 2005-12-15 | Andritz Oy | Procede pour reduire les emissions d'oxyde d'azote |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE4412315B4 (de) * | 1994-04-11 | 2005-12-15 | Alstom | Verfahren und Vorrichtung zum Betreiben der Brennkammer einer Gasturbine |
CN1204005A (zh) * | 1997-06-26 | 1999-01-06 | 亚瑞亚·勃朗勃威力有限公司 | 喷气式发动机 |
DE10049205A1 (de) * | 2000-10-05 | 2002-05-23 | Alstom Switzerland Ltd | Verfahren und Vorrichtung zur Brennstoffversorgung eines Vormischbrenners |
CN1217132C (zh) * | 2003-07-16 | 2005-08-31 | 沈阳黎明航空发动机(集团)有限责任公司 | 一种燃气轮机燃烧室 |
-
2006
- 2006-08-23 WO PCT/EP2006/065574 patent/WO2007028711A1/fr active Application Filing
- 2006-08-23 CN CN2006800396110A patent/CN101297156B/zh not_active Expired - Fee Related
- 2006-08-23 EP EP06792956A patent/EP1926936A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0668470A2 (fr) * | 1994-02-18 | 1995-08-23 | THE BABCOCK & WILCOX COMPANY | Procédés pour la réduction des NOx résultant de la combustion d'un combustible |
WO1999008045A1 (fr) * | 1997-08-08 | 1999-02-18 | Gas Research Institute | Reduction de l'oxyde d'azote au moyen de l'injection de combustible gazeux dans un gaz de combustion a basse temperature pauvre en combustible |
US20020197574A1 (en) * | 2001-06-25 | 2002-12-26 | Jones Andrew P. | Methods and apparatus for burning fuel with low NOx formation |
EP1508741A2 (fr) * | 2003-08-21 | 2005-02-23 | Air Products And Chemicals, Inc. | Combustion de combustibles secondaires enrichie en oxygène pour fours cycloniques de scorification |
WO2005118113A1 (fr) * | 2004-06-03 | 2005-12-15 | Andritz Oy | Procede pour reduire les emissions d'oxyde d'azote |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010036842A3 (fr) * | 2008-09-26 | 2012-06-14 | Air Products And Chemicals, Inc. | Système de combustion comprenant une injection de vapeur ou d'eau |
US8327779B2 (en) | 2008-09-26 | 2012-12-11 | Air Products And Chemicals, Inc. | Combustion system with steam or water injection |
CN102834669A (zh) * | 2008-09-26 | 2012-12-19 | 气体产品与化学公司 | 具有蒸汽或水注射的燃烧系统 |
AU2009296541B2 (en) * | 2008-09-26 | 2013-02-21 | Air Products And Chemicals, Inc. | Combustion system with steam or water injection |
DE102009014223A1 (de) * | 2009-03-25 | 2010-09-30 | Hitachi Power Europe Gmbh | Feuerungssystem eines für den Oxyfuel-Betrieb ausgelegten Dampferzeugers |
WO2010108986A3 (fr) * | 2009-03-25 | 2011-05-19 | Hitachi Power Europe Gmbh | Système de combustion d'un générateur de vapeur conçu pour l'oxycombustion |
US11156164B2 (en) | 2019-05-21 | 2021-10-26 | General Electric Company | System and method for high frequency accoustic dampers with caps |
US11174792B2 (en) | 2019-05-21 | 2021-11-16 | General Electric Company | System and method for high frequency acoustic dampers with baffles |
Also Published As
Publication number | Publication date |
---|---|
CN101297156B (zh) | 2010-10-20 |
EP1926936A1 (fr) | 2008-06-04 |
CN101297156A (zh) | 2008-10-29 |
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