Second-stage combustor for sequential combustor of gas turbine

• Main Authors: KENYON MICHAEL, BERNERO STEFANO, THERKORN DIRK, GASSNER MARTIN
• Format: Patent
• Language: Chinese; English
• Published: 15.01.2019
• Subjects: 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; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; LIGHTING; MECHANICAL ENGINEERING; REGULATING OR CONTROLLING COMBUSTION; WEAPONS

A gas turbine includes: a plurality of combustor assemblies (3), each having a first stage burner unit (3a) and a second stage burner unit (3b), the combustor assemblies (3) including at least a set of load-selectable combustor assemblies (3); a controller (5), which controls the combustor assemblies (3) and selectively activates and deactivates the second stage burner unit (3b) of at least the load-selectable combustor assemblies (3) based on respective switching conditions of individual second stage burner units (3b), the switching conditions including at least a relation between an activation threshold (ATK) and a control quantity (TE); and a reactive species concentration detector (8), which detects a concentration of reactive species (C2+) in a fuel supplied to the combustor assemblies (3). The controller (5) adjusts the activation thresholds (ATK) of the second stage burner units (3b) of the load-selectable combustor assemblies (3) based on the detected concentration of the reactive species (C+). 种燃气涡轮包