公开(公告)号：US10330213B2

公开(公告)日：2019-06-25

申请号：US16133430

申请日：2018-09-17

Applicant: Taiyuan University of Technology

Inventor： Ziming Kou ,  Guijun Gao ,  Yanfei Kou ,  Gongjun Cui ,  Jing Zhang ,  Hao Qin ,  Sijia Meng ,  Jing Liu ,  Liangji Zhao

IPC: F16K47/02 ,  F16K31/05 ,  F16K3/02 ,  F15B15/06 ,  F15B13/02 ,  F15B15/08 ,  F15B11/032 ,  F16K31/143 ,  F16K31/53 ,  F16K31/04

Abstract: Provided is an electromechanical-linkage hydraulic control gate valve actuator. The actuator includes a hand-operated speed-increasing gearbox assembly and a bidirectional throttle valve. In the present invention, a motor is driven to rotate through the hand-operated speed-increasing gearbox and thus a hydraulic system is driven to finally open and close a gate valve. An opening and closing speeds of the gate valve can be regulated and controlled through the bidirectional throttle valve. The present invention drives the motor through the hand-operated speed-increasing gearbox under emergency conditions such as repair and power failure, thereby controlling to open and close the gate valve. Meanwhile, a hydraulic system respectively regulates the speeds of two states of opening and closing through a bidirectional throttling technique, so as to effectively eliminate a water hammer phenomenon. The present invention has simple structure, light weight and modular installation, and enhances safety and reliability.