GAS TURBINE BURNER

• Main Authors: HAYASHI NORIYUKI, ANZAI SHUNICHI, TSUKAHARA SATOSHI
• Format: Patent
• Language: English
• Published: 20.09.1989
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

PURPOSE:To maintain the temperature of a tail pipe shell surface less than specified, by installing a guide wall which partially covers said tail pipe and an air passage to the rest of the tail pipe within the tail pipe shell surface. CONSTITUTION:A tail pipe guide inner wall 2, which forms a ring-shaped passage 4 to supply air to a liner, is installed around the outside of a tail pipe 1. Air velocity is controlled so that the wall surface of the tail pipe may be kept at a temperature less than specified. The air velocity can be selected by adjusting the clearance between the tail pipe and the tail pipe guide wall so as to enhance cooling performance. An air passage inlet 6 is installed to the parts which are not covered with the tail pipe guide wall 2. While an air passage 5 provided with an air passage outlet 7 is installed to the parts covered with the tail pipe guide wall 2 within the wall surface of the tail pipe 1. The ring-shaped passage 4 formed by the tail pipe 1 and the tail pipe guide wall 2 is provided with a projecting section 8 so as to narrow the passage. This construction makes it possible to accelerate the cooling of the tail pipe, since cooled air is flowing inside the air passage within the tail pipe wall surface.