公开(公告)号：US11226095B2

公开(公告)日：2022-01-18

申请号：US16747174

申请日：2020-01-20

申请人： Andritz Inc.

发明人： John Phillips ,  David Watson

IPC分类号： F23L13/02 ,  F23L9/00 ,  F23L13/00 ,  F24F140/40 ,  F23J3/00

摘要： A method is provided for controlling airflow into a furnace that employs a velocity type damper. In one embodiment, the method for controlling airflow may include engaging a velocity type damper to an air port opening of a furnace. The velocity type damper includes at least one air controlling surface that is positioned proximate to a wall of the furnace at the air port opening so that air velocity exiting the at least one air controlling surface is substantially equal to the air velocity entering the air port opening to the furnace. The method may further include adjusting a cross sectional area through the velocity type damper to control air velocity into the furnace through the air port opening.

公开(公告)号：US11719433B2

公开(公告)日：2023-08-08

申请号：US17524296

申请日：2021-11-11

申请人： ANDRITZ INC.

发明人： John Phillips ,  David Watson

IPC分类号： F23L13/02 ,  F23L9/00 ,  F23L13/00 ,  F24F140/40 ,  F23J3/00

CPC分类号： F23L13/02 ,  F23L9/00 ,  F23L13/00 ,  F23C2201/101 ,  F23J3/00 ,  F23N2235/06 ,  F24F2140/40

摘要： A damper for a furnace, the damper including an air port damper body engaged to an air port opening of a furnace; and at least one velocity plate in hinged engagement to the air port damper body so that an air controlling end surface of the at least one velocity plate is substantially aligned to a wall of the furnace at the air port opening when the at least one velocity plate is in a fully opened position.

公开(公告)号：US20220065447A1

公开(公告)日：2022-03-03

申请号：US17524296

申请日：2021-11-11

申请人： ANDRITZ INC.

发明人： John Phillips ,  David Watson

IPC分类号： F23L13/02 ,  F23L9/00 ,  F23L13/00

摘要： A damper for a furnace, the damper including an air port damper body engaged to an air port opening of a furnace; and at least one velocity plate in hinged engagement to the air port damper body so that an air controlling end surface of the at least one velocity plate is substantially aligned to a wall of the furnace at the air port opening when the at least one velocity plate is in a fully opened position.