201110/0 On October 24th, Hunan Provincial Science and Technology Department organized a project appraisal meeting, which was appraised by an appraisal committee composed of 9 famous automation control experts and bridge experts, including Shanghai Jiaotong University, Highway Science Research Institute of Ministry of Transport, Central South University, Hunan University and National Defense Science and Technology University. The appraisal conclusion is: ZQ2000 intelligent grouting controller for prestressed pipeline of bridge. The operation is simple, the operation is stable, and the transformation from manual control to intelligent control is realized, which has good economic and social benefits. The research results have reached the international advanced level, among which the multi-parameter control method is in the leading position in the world and has the value of popularization and application.
Zhao Ping, deputy director of Hunan Provincial Department of Transportation, and Yang Zhiping, deputy director of Hunan Provincial Department of Science and Technology, attended the project review meeting and delivered important speeches. They spoke highly of the achievements made, and demanded to do a good job in popularization, application and engineering services, actively implement the spirit of the Hunan Provincial Department of Transportation on carrying out the "Project Quality Year" activities in depth, and truly apply this achievement to practice to improve the quality and safety level of the project.
I. Working principle and composition of "George" ZQ2000 intelligent grouting system
"wisdom bridge"
The intelligent grouting controller of ZQ2000 bridge prestressed pipeline is mainly composed of three parts: the measurement and control box of the slurry inlet, the measurement and control box of the slurry outlet and the main control machine. It can monitor the grouting flow, pressure, density and other parameters in real time, and automatically judge the time to close the slurry outlet valve through the calculation of the control model, so that the slurry outlet valve can be closed in time and accurately, and the pressure can be maintained automatically to complete grouting without manual intervention. The instrument has the functions of intelligent grouting control, abnormal alarm, grouting history playback and real-time monitoring.