Adjustable negative pressure bypass door for gas inlet system of gas turbine

• Main Authors: ZHANG JIALIN, GUO CHAOFAN, ZHOU JIANDONG, GU CHENGHUI, WU YUMAO, WANG TAILIANG, LIN YIN
• Format: Patent
• Language: Chinese; English
• Published: 11.02.2025
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The utility model belongs to the technical field of gas turbines, and particularly discloses an adjustable negative pressure bypass door for an air inlet system of a gas turbine, the adjustable negative pressure bypass door comprises a shell and a door plate, and the shell is of a cylindrical structure with an air inlet and an air outlet; the air inlet inclines towards the outside of the shell relative to the horizontal plane; the door plate is arranged at the air inlet, the top edge of the door plate is connected with the inner wall of the upper portion of the shell through a rotating shaft, and the door plate can turn around the rotating shaft from the interior of the shell to the exterior of the shell under the gravity effect to seal and close the air inlet. And a counterweight pressing block capable of translating is arranged on the door plate and is used for adjusting the pressing torque when the door plate and the air inlet are closed in a matched manner. By changing the gravity center of the door plate