公开(公告)号：US20210071866A1

公开(公告)日：2021-03-11

申请号：US16903388

申请日：2020-06-17

申请人： Nestec, Inc.

发明人： Jim Nester ,  Rick Reimlinger ,  Jack Clark ,  Frank DeSantis

IPC分类号： F23G7/06 ,  F27D7/02

摘要： An electrically controlled valve which can be operated using a programable controller. A cooperating pair of the electrically controlled valves can be used in a Regenerative Thermal Oxidizer (RTO). The electrically controlled valve has two seats, and a blade which can move between a first position contacting the first seat and a second position contacting the second seat. The blade is moved by an actuator which is controlled by a variable frequency drive (VFD). A control computer continuously monitors the operation of both valves and halts operation of the system upon detecting a fault (error). The motion of the blade is programmed such that force of impact on the seat is reduced. Once the blade is seated, a brake is engaged which maintains the stationary position while utilizing relatively low power.

公开(公告)号：US12018836B2

公开(公告)日：2024-06-25

申请号：US16903388

申请日：2020-06-17

申请人： Nestec, Inc.

发明人： Jim Nester ,  Rick Reimlinger ,  Jack Clark ,  Frank DeSantis

IPC分类号： F23G7/06 ,  F24D19/00 ,  F27D7/02 ,  F27D17/00 ,  F27D19/00

CPC分类号： F23G7/068 ,  F24D19/00 ,  F27D7/02 ,  F27D17/004 ,  F27D17/008 ,  F27D2019/0071

摘要： An electrically controlled valve which can be operated using a programable controller. A cooperating pair of the electrically controlled valves can be used in a Regenerative Thermal Oxidizer (RTO). The electrically controlled valve has two seats, and a blade which can move between a first position contacting the first seat and a second position contacting the second seat. The blade is moved by an actuator which is controlled by a variable frequency drive (VFD). A control computer continuously monitors the operation of both valves and halts operation of the system upon detecting a fault (error). The motion of the blade is programmed such that force of impact on the seat is reduced. Once the blade is seated, a brake is engaged which maintains the stationary position while utilizing relatively low power.