AIR FLOW RATE REGULATOR FOR GAS TURBINE COMBUSTOR

PURPOSE: To provide a gas turbine combustor, permitting reduction of NOx, by a method wherein combustion air is supplied into a premixing device without disturbing the flow of combustion air in the premixing device to retain the mixing ratio of fuel to air in combustion zone so as to be uniform rega...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIDA SHOHEI, ISHIBASHI YOJI, AKATSU SHIGEYUKI, INOUE HIROSHI, KOGANEZAWA TOMOKI, IWAI KAZUMI
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS 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 WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To provide a gas turbine combustor, permitting reduction of NOx, by a method wherein combustion air is supplied into a premixing device without disturbing the flow of combustion air in the premixing device to retain the mixing ratio of fuel to air in combustion zone so as to be uniform regardless of the flow rate of combustion air. CONSTITUTION: A flow regulating ring 18, having lattice type slits for dividing the flow passage of air which flows into a premixing device 15, is arranged at the combustion air intake unit 19 of the premixing device 15. A lid body, covering the flow regulating ring 18, or an air flow rate regulating valve 20, having a cylindrical shape and provided with lattice type slits, is arranged at the outer periphery of the flow regulating ring 18. The air flow rate regulating valve 20 is moved into the axial direction of a gas turbine combustor whereby the opening area of the flow regulating ring 18 is regulated and the flow rate of air, which flows into the premixing device 15, can be controlled.