The design of a dynamic simulation system of a liquid chemical filling process
The flow sheet and operation principle of a liquid filling process was briefly discussed, and the dynamic simulation mathematic models of the filling process were developed in detail using the mass balance equations, gas state equations and historical process data. Based on the intelligent process control (IPC) simulation mode, the overall structure and the development scheme of the filling process simulation system was designed. A dynamic simulation system of the filling process was successfully developed, by taking a typical SCADA (supervisory control and data acquisition) configuration software named Century Star as GUI (graphical user interface) development platform, and integrating with a DLL (dynamic link library) function program to perform the calculation of the simulation models programmed using Visual C++. The development of the simulation GUI included the design and Command Language programming of simulated process flow sheet diagrams, simulation command buttons and their displaying diagrams, and the operation and parameters adjustment diagrams of all kinds of manipulators in the process flow sheets. The overall simulation operation of the filling process was fairly good achieved. Then some comprehensive and systematic simulation tests of the filling process were carried out. The simulation results show that the simulation system could satisfy the filling process research and design requirements very well, and the main process operation parameters were optimized through these simulation tests.
Design and Implementation for Simulation System of Filling Production Line Based on EON
According to the defect that existed in the design of traditional filling production line,this paper presents a new solution which constructs a virtual design platform by introducing the simulation software EON.Dividing the total production line into a juicing produc tion line and a filling production line,this solution adopts a U-Shaped layout for the total production line and models for the key line relat ed devices by combining the CAD software Solidworks.At last,those models are introduced into EON for setting some relevant nodes’ routing and scripts,to realize the interactive simulation control for the total production line.
A New Vacuum Pressure Infiltration CFRP Method and Preparation Experimental Study of Composite
In order to prepare a carbon-fiber-reinforced polymer composite (CFRP) with ideal microstructure and properties, a new vacuum pressure infiltration CFRP method is proposed based on an analysis of existing CFRP preparation process methods. Research on composite material preparation systems was carried out by using this new method principle. The system mainly includes a fiber pre-forming module, a vacuum heating infiltration module, a hot-press curing molding module, and a data acquisition control module. Under the conditions of natural curing at 0 MPa + 6 h + 25 °C, vacuum heating curing at –0.05 MPa + 30 min + 80 °C, and hot-press curing at 0.7 MPa + 5 min + 50 °C, a two-dimensional (2D) CFRP with excellent microstructure and properties was successfully prepared. Observing the microstructure of the prepared composite material, it can be found that the inside of the composite material was sufficiently and uniformly infiltrated, and common preparation defects such as holes and delamination were effectively controlled. Through the performance test, the bending strength of the material reached 790 MPa.