公开(公告)号：US20210379550A1

公开(公告)日：2021-12-09

申请号：US17286825

申请日：2020-04-20

Applicant: ZHEJIANG SCI-TECH UNIVERSITY

Inventor： Haozhe JIN ,  Guofu OU ,  Zhichao FAN ,  Yong GU ,  Qun WANG ,  Chao WANG

IPC: B01J19/00 ,  G06F17/18 ,  B01J8/04

Abstract: A water injection method for a PID control-based adaptive intelligent water injection system is provided. The system includes a water injection portion, a power portion, a control portion, and a measurement and transmission portion. The water injection portion includes a hydrogenation reactor, heat exchangers, air coolers, and a separation tank. The power portion includes a motor and a water pump. The control portion includes a console and a bus. Temperature, pressure and flow velocity transmitters are additionally arranged at each of inlet and outlet pipes of various heat exchangers, and water injection points are disposed. Temperature, pressure and flow velocity signals of the inlet and outlet pipes of heat exchange devices are monitored, and the console performs error analysis on the three signals and uses a PID control algorithm to control the adjustment valve to alter the valve opening degree to adjust the water injection amount in real time.