Abstract in simplified Chinese:借由本发明而提供一种可一边将H2气体用于燃料一边进行安全点火,且可缩短在触媒下的H2气体之燃烧时间的燃烧器。本发明的H2用燃烧器系具有二个不同气体之流路A、B的H2用燃烧器(1),第1流路B系构成为可供H2气体及第1支持燃烧性气体流动,第2流路A系构成为可供H2气体或第2支持燃烧性气体流动,前述第2流路A之前端系配置在形成于前述第1流路B之前端的火焰能够移火的位置,在前述第1流路B系设置有能够借由供应H2气体和第1支持燃烧性气体而着火的触媒(4)。
Abstract:
PROBLEM TO BE SOLVED: To enable operation with reduced CO emissions.SOLUTION: A gas turbine combustion system includes a gas turbine. The gas turbine includes: at least one compressor; at least one combustion chamber for generating working gas, which is connected to receive compressed air from the compressor; and at least one turbine connected to receive working gas from the combustion chamber. The combustion chamber consists of a single can-combustor or comprises a plurality of individual or interdependent can-combustors arranged in an annular can-architecture. The can-combustor has at least one premixed burner. The ignition of a mixture starts at the premixed burner outlet and the flame is stabilized in the region of the premixed burner outlet by means of a backflow zone. The can-combustor comprises a plurality of premixed burners arranged uniformly or is divided in at least two groups within the can-combustor.
Abstract:
A combustion air supply apparatus 9 of alternating heat exchange type supplies combustion air and discharges combustion exhaust gas at a flow velocity of 80 to 200 m/sec. A burner assembly 4 is configured in such a manner that low-caloric fuel gas is pre-heated with heat of pre-combusting high-caloric fuel gas before the low-caloric fuel gas reaches a mixing starting space CA in the combustion chamber where the pre-combusting, high-caloric fuel gas and the low-caloric fuel gas come to burn together in a full scale in the mixing starting space GA. When an air amount of the combustion air supplied through the high-temperature air supply ports of the plurality of fuel gas combustion apparatuses is defined as Q1 and an air amount of the pre-combustion air to be mixed with the high-caloric fuel gas, supplied from the fuel gas combustion apparatuses, is defined as Q2, a total air amount (Q1+Q2) is 1.02 to 1.10 times more than a theoretical air amount QS required for combustion, and a ratio of Q2/(Q1+Q2) is 0.011 to 0.047.
Abstract:
PURPOSE: To reduce NO x and discharge of uncombusted fuel with promoted mixing of reaction product by turning the peripheral part of pulverized coal jetted to clearly distinguish combustion flame of pulverized coal between an NO x generation area and a reducing substance generation area. CONSTITUTION: In a burner which as an outer flame as complete combustion area with the air ratio of more than 1 formed by jets from a secondary fuel nozzle 13 and an air nozzle 14 and an inner flame as reducing area with the air ratio of less than 1 formed by a jet from a primary fuel nozzle 11, a spiral flow is given to the outer flame with a spiral flow generator 15 to ensure a clear separation between the outer female and the inner flame so that complete combustion and thermal decomposition of pulverized coal progressing in respective areas can be promoted individually. This generates a circulating flow from the outer flame to the inner flame in an attenuated spiral flow after the flame to promote the mixing of a reaction product from the inner flame in the area where a circulating flow is generated thereby ensuring an effective reduction of NO x generated in the outer flame due to a reducing substance from the inner flame. COPYRIGHT: (C)1984,JPO&Japio
Abstract:
Die Erfindung betrifft einen Pilotbrenner mit einer Brennerlanze (32) für eine Gasturbine, wobei sich die Brennerlanze entlang einer Längsachse (36) erstreckt und an ihrem einen Ende brennkammerseitig eine Lanzen-Spitze (35) aufweist, wobei die Lanzen-Spitze (35) eine Düsenfläche (45) und eine im Bereich der Düsenfläche (45) angeordnete Anzahl von Brennstoff-Düsen (54a, 54b) umfasst und sich im Inneren der Brennerlanze (32) zur Versorgung der Brennstoff-Düsen (54a, 54b) mit Brennstoff ein Brennstoffversorgungssystem (38) erstreckt. Zur Reduzierung von Schadstoffemissionen im Betrieb der Gasturbine sind die im Bereich der Düsenfläche (45) angeordneten Brennstoff-Düsen (54a, 54b) zwei unterschiedlichen Brennstoff-Stufen (49, 51) zugeordnet. Das Brennstoffversorgungssystem (38) der Brennerlanze (32) umfasst für jede der beiden Brennstoff-Stufen (49, 51) eine separat mit Brennstoff beaufschlagbare Brennstoffzuführung (37, 39), welche fluidisch mit den Brennstoff-Düsen (54a, 54b) der jeweiligen Brennstoff-Stufe (49, 51) verbunden ist.
Abstract:
A combustion apparatus (5) includes a combustion chamber having multiple combustion zones (5a, 5b, 5c). A first wind box (2) is in communication with the first combustion zone (5a) to feed the fuel to be fed into the combustion chamber for initial combustion of the fuel within the first combustion zone (5a). A second wind box (4) has a re- burner in communication with the second combustion zone (5b). The re-burner is configured to feed fuel, a reagent and a first portion of the flue gas to be recycled to the second combustion zone (5b) into the second combustion zone (5b) to reduce nitrogen oxide emissions of the apparatus. A third wind box (6) is in communication with the third combustion zone (5c) to feed air to the third combustion zone (5c) to complete the combustion process.