GAS TURBINE COMBUSTOR

• Main Authors: SAITOH, KEIJIRO, TANIMURA, SATOSHI, MORIWAKI, ATSUSHI, OHTA, MASATAKA, NAGAI, NOBUHIKO, AKAMATSU, SHINJI
• Format: Patent
• Language: English; French; Japanese
• Published: 16.03.2006
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A gas turbine combustor includes a pilot burner, and a plurality of main burners disposed around the periphery of the pilot burner on the radially outer side. Each of the main burners (2) includes an extension pipe disposed at its downstream end. The outlet port of the extension pipe is shaped to have a radial edge which is parallel with the radial direction. In this manner, occurrence of flashback is effectively prevented. L'invention concerne une turbine à gaz qui comporte une veilleuse d'allumage et plusieurs brûleurs principaux disposés à la périphérie de la veilleuse d'allumage sur le côté extérieur. Chacun des brûleurs principaux (2) comporte une prolongation placée en son extrémité en aval. L'orifice de sortie de la prolongation est formé de façon à avoir un bord radial parallèle à la direction radiale. Ainsi, on évite efficacement la survenue d'un retour de flamme.