Gasturbinenbrennkammer

Details

Veröffentlichungs-Nr.

EP3109552

Aktenzeichen

EP16175903

Anmeldetag

23. Juni 2016

Veröffentlichung

25. März 2020

Erteilung

25. März 2020

Rechtsraum

EP

IPC

F23R3/10F23R3/54F23R3/28F23R3/34F23R3/26

Abstract

A gas turbine combustor 10 comprising: a burner that injects air and a fuel, an inner casing 18 that surrounds the burner, an outer casing 19 that surrounds the inner casing 18, an airflow path that supplies air is provided between the inner casing 18 and the outer casing 19, an opening portion that introduces the air flowing down the airflow path 26 from an outer circumferential side to an inner circumferential side of the inner casing of the combustor is provided in a part of the inner casing 18, wherein, an obstacle that impedes flow of the air is provided in the airflow path 26 on an upstream side of the opening portion, and the obstacle is formed by a perforated plate comprising a plurality of holes that flow a stream of the air, and the obstacle is configured such that an opening ratio representing a ratio of cross-sectional area of an opening portion of the hole formed in the obstacle to the sum of the cross-sectional area of the opening portion of the hole and cross-sectional area of a shielding portion that shields the flow of the air is low on an inner circumferential side of the obstacle and high on an outer circumferential side of the obstacle.

Anmelder

Firma

Mitsubishi Hitachi Power Systems, Ltd.

Land

🇯🇵 Japan

Fachgebiete